CN108209319B

CN108209319B - Quick in-situ vertical lifting bed fence

Info

Publication number: CN108209319B
Application number: CN201810235391.3A
Authority: CN
Inventors: 瞿静
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-03-21
Filing date: 2018-03-21
Publication date: 2023-09-15
Anticipated expiration: 2038-03-21
Also published as: CN108209319A

Abstract

The invention discloses a rapid in-situ vertical lifting bed fence, which comprises lifting rods, primary and secondary guide rods, a manual switching device, a locking device, a transmission positioning device, a fixed rod group, upright posts and mesh cloth, wherein the lifting rods are arranged on the main guide rods and the secondary guide rods; two upright posts are respectively arranged at two ends of one side edge of the bed, a pair of fixed rod groups are arranged at the outer sides of the upright posts, and the primary guide rod and the secondary guide rod are arranged on the fixed rod groups; the rectangular mesh cloth is sleeved on the lifting rod, the bottom frame rod at the bottom of the upright post and the main guide rods at two sides; locking devices are arranged at the left end and the right end of the lifting rod; the middle part of the lifting rod is provided with a manual switch device, the manual switch device is connected with the locking device through a transmission positioning device arranged on the lifting rod, and the lifting rod can freely slide up and down in the axial direction of the upright post. The invention overcomes the defects of complex lifting operation and low efficiency of the traditional vertical lifting bed, avoids an operator from running back and forth between two upright posts, and can realize the rapid, convenient and safe lifting of the fence by simply operating the push-pull rod in the middle part of the lifting rod.

Description

Quick in-situ vertical lifting bed fence

Technical Field

The invention relates to the technical field of bed accessories, in particular to a rapid in-situ vertical lifting bed fence.

Background

The problem that the rail of the child bed which is arranged on the adult bed is complicated in lifting process and an operator needs to walk back between two upright posts is solved; the traditional rail is equipped with locking parts such as couple formula, bolt formula, perhaps the arch of pressing respectively at lifter both ends, and the operator need walk to lifter both ends respectively and the manual locking part of untiing just can put down the rail, and these designs make the bed rail go up and down convenient and fast inadequately, and the operability is poor, can not realize quick lift, can take place disastrous result after the bolt that upright post, underframe, guide arm used is not hard up and drops to take place, and at the defect such as the arch of pressing or slip ring can produce very big noise in a moment.

There is thus a great need for a new child's bed pen that meets the following requirements at the same time:

(a) When ascending or descending, the operator is positioned near the middle part of the bed fence, namely the inner side or the outer side of the middle position of the lifting rod, and the operator transmits or converts the motion of the two hands to the two ends of the lifting rod, and the locking mechanisms at the corresponding positions of the two ends are simultaneously opened or closed;

(b) The defects that the lifting rod of the traditional vertical lifting bed is too large to shake and is not firm are avoided;

(c) Obvious noise is avoided in the lifting process;

(d) The children shake randomly and can not fall off any push-pull lifting rod;

(e) After long-term use, all parts, especially the guide rod, the fixing nut and the like, are not loosened, and the disastrous consequences of falling of children and infants caused by falling of the guide rod or the fixing nut can be avoided.

Disclosure of Invention

In order to perform rapid lifting and solve the problems of inconvenient single-position operation lifting bed fence and poor stability in the background technology, the invention provides a rapid in-situ vertical lifting bed fence, which is characterized by comprising the following components: the device comprises a lifting rod, two main guide rods, two secondary guide rods, a manual switching device, a locking device, a transmission positioning device, two pairs of fixed rod groups, two upright posts, a bottom frame rod, two pipe joints and a piece of mesh cloth; wherein the locking devices are arranged at the left end and the right end of the lifting rod; the manual switch device is arranged in the middle of the lifting rod, the manual switch device is connected with the locking device through the transmission positioning device, and the main guide rod and the secondary guide rod penetrate through the positioning hole at the outer side of the transmission positioning device and enable the lifting rod to slide up and down freely along the axial direction of the upright post;

two upright posts are respectively arranged at two ends of one side of the bed, a pipe joint is arranged below each upright post, and the two pipe joints are connected through a bottom frame rod; the outer sides of the two upright posts are provided with a pair of fixed rod groups, and each pair of fixed rod groups consists of an upper fixed rod arranged at the upper part of the upright post and a lower fixed rod arranged at the lower part of the upright post; the upper end and the lower end of the main guide rod and the secondary guide rod are respectively arranged on the upper fixing rod and the lower fixing rod; the upper, lower, left and right sides of a rectangular mesh are respectively sleeved on the lifting rod, the bottom frame rod and the main guide rods at two sides.

The diameter of the main guide rod is larger than or equal to that of the secondary guide rod; the axes of the upright post, the main guide rod and the secondary guide rod are mutually parallel;

when the diameter of the main guide rod is larger than that of the secondary guide rod, the diameter of the main guide rod is larger than that of the upper fixing rod and the lower fixing rod, the diameter of the secondary guide rod is smaller than that of the upper fixing rod and the lower fixing rod, and the main guide rod and the secondary guide rod are respectively arranged on the upper fixing rod and the lower fixing rod;

when the diameter of the main guide rod is equal to that of the secondary guide rod, the upper fixing rod and the lower fixing rod are respectively provided with two mounting holes for mounting the main guide rod and the secondary guide rod, and the upper end and the lower end of the main guide rod and the lower end of the secondary guide rod are respectively mounted on the upper fixing rod and the lower fixing rod through the mounting holes.

Two cushion blocks are respectively sleeved on the upper fixing rod and the lower fixing rod, and the two cushion blocks are respectively positioned between the upright post and the main guide rod as well as between the main guide rod and the secondary guide rod; the distance among the upright post, the main guide rod and the secondary guide rod is equal to the thickness of the pad block.

The transmission positioning device comprises two directional sliding hook seats and a plurality of transverse guide blocks; the transverse guide blocks are arranged in the lifting rod at intervals, the two directional sliding hook seats are arranged at the left end and the right end of the lifting rod in a vertical rotating way by 180 degrees, and the main guide rod and the secondary guide rod penetrate through the positioning holes at the outer ends of the two sliding hook seats to realize the positioning of the lifting rod in the vertical direction;

The locking device comprises a pair of left slide hooks and a pair of right slide hooks with the same opening direction of the hooks, and two support rods; the first left sliding hook and the first right sliding hook are respectively arranged in the directional sliding hook seats at the two ends of the lifting rod and can slide left and right in the directional sliding hook seats; the left support rod and the right support rod are respectively arranged at the upper half part of one upright post and are positioned at the same side of the fixed rod group on the upright post, the end part at the outer side of the support rod is vertically provided with a through hole which can be penetrated by a secondary guide rod, the distance between the support rod and the lower fixed rod is smaller than the natural length of a sleeve wrapped on the main guide rod of the mesh cloth, and the distance between the lifting rod and the bottom frame rod is larger than the natural height of the mesh cloth;

the manual switch device comprises an elbow pull rod and a push-pull handle; the elbow pull rod with elbows at two ends is arranged on the lifting rod through the transverse guide block, the elbows at two ends of the elbow pull rod respectively penetrate through the translational sliding hooks at two ends of the lifting rod, and the push-pull handle is arranged near the middle of the elbow pull rod.

The transverse guide block is an overhanging guide block, and the overhanging guide block is provided with an overhanging part which protrudes out of one lifting rod; the overhanging parts are used for installing the push-pull rod, and all overhanging parts are collinear;

the directional sliding hook seat is a first sliding hook seat, and the first sliding hook seat is made of a first sliding block seat and a main and auxiliary rod sliding seat, wherein a waist-shaped hole capable of enabling the first left sliding hook and the first right sliding hook to slide freely is horizontally formed in the first sliding block seat; two positioning holes which can enable the main guide rod and the secondary guide rod to pass through are vertically formed in the main and secondary rod sliding seat;

The first left sliding hook is formed by integrally fixedly connecting a first left sliding hook and a first left sliding hook rod from left to right, and is arranged in a through groove of the left sliding hook seat through the first left sliding hook rod; the first right slide hook is formed by fixedly connecting a first right slide hook rod and a first right slide hook from left to right, and is arranged in a through groove of the right slide hook seat through the first right slide hook rod; the open ends of the first right sliding hook and the first left sliding hook face the same direction;

the elbow pull rod is an external push pull rod which is arranged outside the lifting rod through a plurality of external push guide blocks.

The transverse guide blocks are a plurality of built-in guide blocks which are arranged in the lifting rod along the axial direction of the lifting rod, all built-in guide blocks are provided with two through holes at the same position, the main through holes and the auxiliary through holes are respectively used for installing the inner push-pull rod and the auxiliary rod, the auxiliary through holes are in interference fit with the auxiliary rod, and the main through holes are in clearance fit with the inner push-pull rod;

the directional sliding hook seat is a second sliding hook seat, wherein the second sliding hook seat is integrally formed by a second sliding block seat and a main and auxiliary rod sliding seat, a fixing hole for installing an auxiliary rod is formed in the inner side of the second sliding block seat, and the fixing hole is positioned on the other side of the main and auxiliary rod sliding seat and corresponds to the position of the auxiliary through hole; the two second sliding hook seats are respectively arranged at the inner sides of the left end and the right end of the lifting rod through the second sliding block seats;

The first left sliding hook is formed by fixedly connecting a first left sliding hook and a first left sliding hook rod from left to right, and is arranged in a through groove of a second left sliding hook seat through the first left sliding hook rod; the first right slide hook is formed by fixedly connecting a first right slide hook rod and a first right slide hook from left to right, and is arranged in a through groove of a second slide hook seat on the right side through the first right slide hook rod; the opening ends of the first right slide hook and the first left slide hook are opened rightward;

the elbow pull rod is an inner push-pull rod which is arranged in the lifting rod through a built-in guide block; the bending parts at the left end and the right end of the inner push-pull rod respectively pass through a left slide hook rod and a right slide hook rod; the push-pull handle extends out of the lifting rod;

the manual switching device further includes: the device also comprises two auxiliary rods; two auxiliary rods; one end of the auxiliary rod is fixed on the first sliding hook seat and is arranged in the lifting rod through auxiliary through holes on a plurality of built-in guide blocks, and the two auxiliary rods are respectively arranged on two sides of the lifting rod.

The transmission positioning device comprises: two third slide hook seats and a plurality of external guide blocks; a plurality of external guide blocks are arranged along the axis direction of the lifting rod and outside the lifting rod, and the external guide blocks are used for installing an external push pull rod; the third sliding hook seat is integrally formed by a third sliding block seat and a downward-bending sliding block seat, the two third sliding block seats are respectively arranged in the left end and the right end of the lifting rod, and through grooves which can enable the third left sliding hook and the third right sliding hook to slide left and right freely are respectively formed in the third sliding block seats positioned in the left end and the right end; two positioning holes which can enable the main guide rod and the secondary guide rod to pass through are formed in the downward-bending sliding seat which is positioned obliquely below the third sliding seat;

The locking device includes: two third slide hooks and two pairs of fixed hooks; the distance from the lower part of the fixed hooks to the lower fixed rod is smaller than the natural length of a sleeve of the mesh cloth wrapped on the main guide rod, and the distance between the lifting rod and the bottom frame rod is larger than the natural height of the mesh cloth; each pair of fixing hooks is divided into an inner hook and an outer hook, the main body of the inner hook is positioned at the inner side of the main guide rod, and the hook tip of the inner hook extends into the outer side of the main guide rod; the main body of the outer hook is positioned at the outer side of the secondary guide rod, and meanwhile, the tip end of the hook of the outer hook extends into the inner side of the secondary guide rod; the third slide hook is formed by integrating a long slide hook rod and a horizontal stop block, wherein a round angle is formed above one end of the long slide hook rod, the horizontal stop block is arranged below the end of the long slide hook rod, the thickness of the long slide hook rod is smaller than the distance between the hook tips of the inner hook and the outer hook in each pair of fixed hooks, the width of the horizontal stop block is larger than the distance between the hook tips of the inner hook and the outer hook on the fixed hooks and smaller than the distance between the main guide rod and the secondary guide rod, the long slide hook rods of the two third slide hooks are respectively arranged in third slide hook seats on two sides, and the two third slide hooks and the third slide hook seats on the side form a slide pair;

The manual switching device includes: push-pull rod and push-pull handle; the push-pull rod is arranged outside the lifting rod through a plurality of external guide blocks and can slide left and right freely relative to the lifting rod; the left end and the right end of the push-pull rod are provided with bending parts, and the distance between the bending parts at the left end and the right end is larger than the sum of the length of the lifting rod and the distance required to move by the push-pull handle, so that the push-pull rod is always positioned outside the lifting rod; the bending parts at the left end and the right end of the push-pull rod respectively penetrate through long sliding hook rods of sliding hooks III at the two ends; the push-pull handle is arranged on the push-pull rod and is positioned near the middle of the push-pull rod.

The manual switch device comprises a rotary handle, a rotary shaft and a handle return spring, wherein the rotary handle is arranged outside the lifting rod through the rotary shaft, and the axis of the rotary shaft and the axial midpoint of the lifting rod are positioned on the same vertical plane; two ends of the handle return spring are respectively arranged on the rotary handle and the lifting rod;

the transmission positioning device comprises: the two steel wires, the two steel wire sleeves and the two rotating hook seats are respectively arranged at the left end and the right end of the lifting rod, one part of each rotating hook seat extends out of the lifting rod, two holes for the main guide rod and the secondary guide rod to pass through are formed in the extending part of each rotating hook seat, and a groove for installing a rotating hook is formed in the extending part of each rotating hook seat; the two steel wire sleeves are arranged on the left side and the right side of the lifting rod and are positioned on the same side of the rotary handle; one end of the steel wire passes through the steel wire sleeve and is connected with the rotating hook at the side of the steel wire sleeve, and the other end of the steel wire is connected with the edge at the side of the rotating handle;

The locking device is provided with two rotating hooks which are respectively arranged in a rotating hook seat groove and two rotating hook return springs; the both ends of rotating hook return spring are installed respectively in the inboard of rotating hook and the outermost end of wire sleeve to the cover is outside the wire line, and the rotating hook colludes on the dead lever of homonymy in order to realize the ascending orientation of lifter in vertical direction.

The manual switching device includes: the first switch push rod, the sliding rail, the sliding block, the first switch push block, the first push block groove and the first switch shell; the first switch shell which is formed by integrating an upper rectangular half shell and a lower isosceles trapezoid half shell up and down is arranged outside the lifting rod, and the left steel wire sleeve and the right steel wire sleeve penetrate through holes at the left end and the right end of the first switch shell, so that two steel wires can enter the first switch shell; a first push block groove is vertically formed in the lower portion of the first switch shell from the short side of the isosceles trapezoid half shell inwards, a first switch push block is installed in the first push block groove and can freely slide up and down in the first push block groove, two sliding rails are symmetrically formed in the upper rectangular half shell of the first switch shell, two sliding blocks are respectively installed in one sliding rail, the top end, the middle portion and the lower end of each of the left switch push rod and the right switch push rod are hinged with a steel wire, the sliding blocks and the first switch push block in sequence, and the lower ends of the two first switch push rods are hinged with the same position of the first switch push block.

The manual switching device includes: the second switch push rod, the second switch push block, the second push block groove and the second switch shell; the second switch shell integrally formed by a left switch half shell and a right switch half shell is arranged outside the lifting rod, and the left steel wire sleeve and the right steel wire sleeve penetrate through holes at the left end and the right end of the second switch shell, so that two steel wires can enter the second switch shell; the bottom surface of the second switch shell is internally provided with a second push block groove along the symmetrical axis, the second switch push block is arranged in the second push block groove and can slide up and down freely in the second push block groove, the top of the second switch push block is provided with a protruding part, the opening of the second push block groove is also provided with a protruding part, and the two protruding parts are matched to ensure that the second switch push block cannot fall out of the second push block groove; a spring can be arranged at the top of the second switch pushing block; two second switch push rods which are L-shaped are respectively arranged in the left and right second switch half shells, the second switch push rods are formed by a second right-angle push rod at the lower part and a second right-angle pull rod at the upper part into a whole, wherein a waist-shaped groove is formed at the outer end of the second right-angle push rod, the outer ends of the second right-angle pull rods of the left and right second switch push rods, inflection points and the outer ends of the second right-angle push rods are hinged with a steel wire, a second switch shell and a second switch push block in sequence, and the waist-shaped grooves at the outer ends of the two second right-angle push rods are hinged with the same position of the second switch push block.

The invention overcomes the defects of complex lifting operation and low efficiency of the traditional vertical lifting bed, avoids an operator from running back and forth between two upright posts, and can realize the rapid, convenient and safe lifting of the fence by simply operating the push-pull rod in the middle part of the lifting rod.

Drawings

FIG. 1a is a front view of a quick in-situ vertical lift bed fence of embodiment 1 of the present invention with a manual switching device closed;

FIG. 1b is a front view of the embodiment 1 of the invention after the manual switching device is opened;

FIG. 2 is an assembly view of the column, fixed bar set, main guide bar, sub guide bar and support bar in embodiment 1 of the present invention;

FIG. 3a is an assembly view of a left slide hook and a slide hook seat according to embodiment 1 of the present invention;

FIG. 3b is an assembly view of a right slide hook and a slide hook seat according to embodiment 1 of the present invention;

FIG. 4 is an isometric view of a first slide hook seat according to embodiment 1 of the present invention;

FIG. 5 is a cross-sectional view taken along section A-A of FIG. 1 a;

FIG. 6a is a top cross-sectional view of embodiment 2 of the present invention;

FIG. 6b is an enlarged view of a portion of the area indicated by D in FIG. 6 a;

FIG. 7 is an elevation view of embodiment 3 of the present invention;

FIG. 8a is a partial cross-sectional view of the embodiment 3 of the present invention taken along section B-B in FIG. 7 when the locking device is closed;

FIG. 8b is a partial cross-sectional view of embodiment 3 of the present invention when the locking device is opened;

FIG. 9 is a cross-sectional view of section C-C of FIG. 8 a;

FIG. 10a is a front view of a third slide hook in embodiment 3 of the present invention;

FIG. 10b is a side view of the third slide hook of example 3 of the present invention in the direction E of FIG. 10 a;

FIG. 10c is a top view of a third slide hook in example 3 of the present invention;

FIG. 11 is a front view of embodiment 4 of the present invention;

FIG. 12 is a side view of embodiment 4 of the present invention;

fig. 13 is a top view of a manual switching device in embodiment 4 of the present invention;

fig. 14a is a cross-sectional view of the switch push block No. one in embodiment 5 of the present invention in a natural state;

fig. 14b is a cross-sectional view of the first switch push block of embodiment 5 of the present invention after being pressed;

FIG. 15a is a cross-sectional view of the second switch pushing block in embodiment 6 of the present invention in a natural state;

fig. 15b is a cross-sectional view of the second switch push block of embodiment 6 of the present invention after being pressed.

In the figure: 1-lifting rod, 2-main guide rod, 3-secondary guide rod, 4-manual switch device, 5-locking device, 6-transmission positioning device, 9-cushion block, 11-fixed rod group, 12-upright post, 13-bottom frame rod, 14-pipe joint, 15-mesh cloth, 42-push pull rod, 42 a-inner push-pull rod, 42 b-auxiliary rod, 43-push-pull handle, 44-rotary handle, 45 e-first switch push rod, 45 f-second switch push rod, 46-slide rail, 47-slide block, 48 e-first switch push block, 48 f-second switch push block, 49 e-first push block groove, 49f- -second push block groove, 410e- -first switch housing, 410f- -second switch housing, 411- -handle return spring, 412- -rotating hook return spring, 51a- -left slide hook, 52a- -right slide hook, 51c- -third slide hook, 53- -support bar, 54- -rotating hook, 55- -fixed hook, 61a- -first slide hook seat, 61b- -second slide hook seat, 61c- -third slide hook seat, 61d- -rotating hook seat, 62a- -overhanging guide block, 62b- -built-in guide block, 62c- -external guide block, 63- -steel wire, 64- -steel wire sleeve, 1101- -upper fixed rod, 1102-lower fixation bar.

Detailed Description

The following describes in further detail the embodiments of the present invention with reference to the drawings and examples.

In embodiment 1 of the present invention as shown in fig. 1a to 5, it includes: the lifting device comprises a lifting rod 1, two main guide rods 2, two secondary guide rods 3, a manual switching device 4, a locking device 5, a transmission positioning device 6, eight cushion blocks 9, two pairs of fixed rod groups 11, two upright posts 12, a bottom frame rod 13, two pipe joints 14 and a piece of mesh cloth 15; two upright posts 12 are vertically arranged at two ends of one side surface or all side surfaces of the adult bed, one pipe joint 14 is arranged below each upright post 12, and the two pipe joints 14 are oppositely arranged; two pipe joints 14 which are oppositely arranged are connected through a bottom frame rod 13; the outer sides of the two upright posts 12 (the outer sides of the beds) are respectively provided with a pair of fixed rod groups 11, and each pair of fixed rod groups 11 consists of an upper fixed rod 1101 arranged at the upper part of the upright post 12 and a lower fixed rod 1102 arranged at the lower part of the upright post 12;

the diameter of the main guide rod 2 is larger than that of the upper fixing rod 1101 and the lower fixing rod 1102, two holes slightly larger than that of the upper fixing rod 1101 and the lower fixing rod 1102 are respectively formed in the upper end and the lower end of the main guide rod 2, the main guide rod 2 is arranged on the upper fixing rod 1101 and the lower fixing rod 1102 through the holes in the upper end and the lower end, the diameter of the secondary guide rod 3 is smaller than that of the upper fixing rod 1101 and the lower fixing rod 1102, and a lantern ring with the inner diameter equal to that of the upper fixing rod 1101 is bent at the top end of the secondary guide rod 3; the outer end part of the lower fixing rod 1102 is vertically provided with a hole for the secondary guide rod 3 to pass through, the top end of the secondary guide rod 3 is sleeved on the fixing rod 1101, and the secondary guide rod 3 is bolted on the lower fixing rod 1102 through the hole formed at the outer end part of the lower fixing rod;

The axes of the upright post 12, the main guide rod 2 and the secondary guide rod 3 are parallel to each other; the eight cushion blocks 9 are sleeves, are sleeved on the upper fixing rod 1101 and the lower fixing rod 1102 in pairs, and the two cushion blocks 9 are respectively positioned between the upright post 12 and the main guide rod 2 and between the main guide rod 2 and the secondary guide rod 3, and the distance among the upright post 12, the main guide rod 2 and the secondary guide rod 3 is equal to the thickness of the cushion blocks 9; the screen cloth 15 is rectangular, and the upper, lower, left and right sides of the screen cloth 15 are respectively sleeved on the lifting rod 1, the bottom frame rod 13, the left main guide rod 2 and the right main guide rod 2;

locking devices 5 are arranged at the left end and the right end of the lifting rod 1; the middle part of the lifting rod 1 is provided with a manual switch device 4, the manual switch device 4 is connected with a locking device 5 through a transmission positioning device 6 arranged on the lifting rod 1, and a main guide rod 2 and a secondary guide rod 3 penetrate through a positioning hole at the outer side of the transmission positioning device 6 and enable the lifting rod 1 to freely slide up and down in the axial direction of a stand column 12;

the transmission positioning device 6 comprises two first slide hook seats 61a and a plurality of overhanging guide blocks 62a; wherein a plurality of outward extending guide blocks 62a are installed in the lifting rod 1 at intervals along the axial direction of the lifting rod 1, and all the outward extending guide blocks 62a are provided with outward extending parts which extend out of one lifting rod 1; the overhanging portions are used for mounting the push-pull rod 42, and all overhanging portions are collinear; the first sliding hook seat 61a is integrally formed by a first sliding block seat and a main and auxiliary rod sliding seat, wherein a waist-shaped hole capable of enabling the first left sliding hook 51a and the first right sliding hook 52a to slide freely is horizontally formed in the first sliding block seat; two positioning holes which can enable the main guide rod 2 and the secondary guide rod 3 to pass through are vertically formed in the main and secondary rod sliding seats, two first sliding hook seats 61a are installed in the left end and the right end of the lifting rod 1 in a manner of rotating 180 degrees up and down, and the main and secondary rod sliding seats are punched out;

The locking device 5 comprises a left slide hook 51a, a right slide hook 52a and two support rods 53; the left and right support rods 53 are respectively arranged on the upper half part of one upright post 12 and are positioned on the same side of the fixed rod group 11 on the upright post 12, the axes of the support rods 53 are parallel to the axes of the upper fixed rod 1101 and the lower fixed rod 1102, through holes which can enable the secondary guide rods 3 to pass through are vertically formed in the end parts of the outer sides of the support rods 53, the distance between the support rods 53 and the lower fixed rod 1102 is smaller than the natural length of a sleeve of the mesh cloth 15 wrapped on the main guide rod 2, and the distance between the lifting rod 1 and the bottom frame rod 13 is larger than the natural height of the mesh cloth 15; the first left slide hook 51a is formed by integrally fixedly connecting a first left slide hook and a first left slide hook rod from left to right, and the first left slide hook 51a is arranged in a through groove of the left slide hook seat 61a through the first left slide hook rod and forms a sliding pair with the left slide hook seat 61 a; the first right slide hook 52a is formed by integrally fixedly connecting a first right slide hook rod and a first right slide hook from left to right, and the first right slide hook 52a is arranged in a through groove of the right slide hook seat 61a through the first right slide hook rod and forms a sliding pair with the right slide hook seat 61 a; the opening ends of the first right slide hook and the first left slide hook are opened rightward;

The manual switching device 4 comprises an push-pull rod 42 and a push-pull handle 43; wherein the push-pull rod 42 is arranged outside the lifting rod 1 through a plurality of push-pull guide blocks 62a and can slide left and right freely relative to the lifting rod 1; the left end and the right end of the push-pull rod 42 are provided with bending parts, and the bending parts at the left end and the right end extend into the lifting rod 1 and respectively pass through a left sliding hook rod and a right sliding hook rod; the push-pull handle 43 is mounted near the middle of the push-pull rod 42.

The installation method of the main guide rod 2, the sub guide rod 3, the upper fixing rod 1101 and the lower fixing rod 1102 in this embodiment is as follows: the upper fixing rod 1101 at the upper part of the upright 12 sequentially passes through the upright 12, the cushion block 9, the hole above the main guide rod 2 and the cushion block 9, the upper fixing rod 1101 is fixed by nuts from the back surface of the upright 12, the lower fixing rod 1102 at the lower part of the upright sequentially passes through the upright 12, the cushion block 9 and the hole below the main guide rod 2 and the cushion block 9, the lower fixing rod 1102 is fixed by nuts from the back surface of the upright 12, and then the main guide rod 2 and the sub guide rod 3 are respectively screwed from the outer ends by the nuts after the sub guide rod passes through the holes at the outer ends of the upper fixing rod 1101 and the lower fixing rod 1102.

The upper part of the thinner secondary guide rod 3 in the embodiment can be bent into a circular ring with the inner diameter larger than that of the upper fixing rod 1101 for installing the upper fixing rod 1101;

The locking device 5 and the transmission positioning device 6 in the embodiment can be installed in a left-right mirror image mode, but the hook orientation is required to be ensured to be the same;

the left slide hook 51a and the right slide hook 52a after the installation are equidistantly displaced along with the left-right movement of the push-pull handle 43;

the main and auxiliary rod sliding seats of the two first sliding hook seats 61a after the installation are used for realizing the radial positioning of the lifting rod 1 on the main guide rod 2 and the auxiliary guide rod 3, and can ensure that the lifting rod 1 can freely slide up and down;

when the lifting of the present embodiment is required, only to stand in front of the push-pull handle 43, lift the lifting lever 1 in place to a certain height, and then push the push-pull handle 43 to the right side so that the first left slide hook 51a and the first right slide hook 52a are hooked on the support rods 53 on the same side, respectively. In the case where the locking device 5 and the manual switching device 4 are symmetrical about the middle circular section of the lifter 1, the direction of pushing the push-pull handle 43 is opposite to that of the present embodiment.

After rising, because the interval of bracing piece 53 and lower dead lever 1102 is less than the natural length of the cover of parcel on leading lever 2 of screen cloth 15, and the interval of lifter 1 and underframe pole 13 is greater than the natural height of screen cloth 15, this design can prevent the cover at screen cloth 15 both ends from tightening when the peak, reduces the both ends unbalanced force when lifter 1 rises to the peak, and utilizes the elasticity of screen cloth 15 self for the vast majority position in the middle of screen cloth 15 is in the state of tightening.

After rising, because the secondary guide rod 3 passes through the through holes at the end parts of the fixed rod 53 and the lower fixed rod 1102, the effect of a pin is achieved, even if the fixed nuts at the end parts of the upper fixed rod 1101 and the lower fixed rod 1102 are loosened and fall off due to long-term use, the secondary guide rod 3 can be clamped on the fixed rod 53 and the lower fixed rod 1102 all the time, and the fall-off of the main guide rod 2 is prevented, so that accidents caused by falling of children from a bed are prevented, and the safety and the reliability of the bed fence after long-term use are ensured.

When the present embodiment needs to be lowered, the first left slide hook 51a and the first right slide hook 52a can slide out of the shielding range of the support rod 53 at the same time by pushing the push-out pull rod 8 leftwards after only slightly lifting the lifting rod 1, and then when the user gradually lowers the lifting rod 1, the lifting rod 1 slowly descends to above the lower fixing rod 1102.

In this embodiment, the thinner secondary guide rod can directly pass the hole of upper and lower dead lever and bracing piece tip, and this kind even the nut of upper and lower dead lever drops, the main guide rod also can not drop from the stand, prevents child from falling down from the bed.

In this embodiment, only one hand is required to hold the lifting rod, and the other hand pushes the push-pull rod leftwards or rightwards, so that the sliding hooks at the two ends are separated from and clamped on the supporting rods, convenient operation of running back and forth between the left upright post and the right upright post is realized, and meanwhile, as the lifting rod is lowered, 3 actions are required to be matched, namely, the lifting rod is lifted, pushed and put down, the lifting rod is lifted and pushed, a large force is required to push the push-pull rod, children within 3 years old cannot complete the lifting rod, the sliding hooks cannot be separated, and the safety of the children is ensured.

Embodiment 2 of the present invention as shown in fig. 6a and 6b, the description of the same parts as those of embodiment 1 in this embodiment is omitted below, and only the structure different from embodiment 1 will be described here;

the upper fixing rod 1101 and the lower fixing rod 1102 are respectively provided with two mounting holes for mounting the main guide rod 2 and the secondary guide rod 3, the diameter of the main guide rod 2 is equal to that of the secondary guide rod 3, and the upper end and the lower end of the main guide rod 2 and the lower end of the secondary guide rod 3 are respectively mounted on the upper fixing rod 1101 and the lower fixing rod 1102 through the mounting holes; the cushion block 9 may not be provided in this embodiment;

the transmission positioning device 6 comprises two second slide hook seats 61b and a plurality of built-in guide blocks 62b; the plurality of built-in guide blocks 62b are arranged in the lifting rod 1 along the axial direction of the lifting rod 1, all the built-in guide blocks 62b are provided with two through holes at the same position, one main through hole is used for installing the inner push-pull rod 42a, the other auxiliary through hole is used for installing the auxiliary rod 42b, the auxiliary through hole and the auxiliary rod 42b are in interference fit to prevent relative movement between the two through interference fit, and the main through hole and the inner push-pull rod 42a are in clearance fit to ensure that the inner push-pull rod 42a can slide from left to right in the lifting rod 1; the second sliding hook seat 61b is integrally formed by a second sliding block seat and a main and auxiliary rod sliding seat, the inner side of the second sliding block seat is provided with a fixing hole for installing the auxiliary rod 42b, and the fixing hole is positioned on the other side of the main and auxiliary rod sliding seat and corresponds to the position of the auxiliary through hole; two second slide hook seats 61b are respectively arranged on the inner sides of the left end and the right end of the lifting rod 1 through respective second slide block seats; two positioning holes which can enable the main guide rod 2 and the secondary guide rod 3 to pass through are vertically formed in the main and auxiliary rod sliding seat; the two first sliding hook seats 61a are installed in the left end and the right end of the lifting rod 1 in a way of rotating 180 degrees up and down, and the main rod sliding seats and the auxiliary rod sliding seats are installed outside the lifting rod;

The locking device 5 comprises a left slide hook 51a, a right slide hook 52a and two support rods 53; the left and right support rods 53 are respectively arranged on the upper half part of one upright post 12 and are positioned on the same side of the fixed rod group 11 on the upright post 12, the axes of the support rods 53 are parallel to the axes of the upper fixed rod 1101 and the lower fixed rod 1102, the distance between the support rods 53 and the lower fixed rod 1102 is smaller than the natural length of a sleeve of the mesh cloth 15 wrapped on the main guide rod 2, and the distance between the lifting rod 1 and the bottom frame rod 13 is larger than the natural height of the mesh cloth 15; the first left slide hook 51a is formed by integrally fixedly connecting a first left slide hook and a first left slide hook rod from left to right, and the first left slide hook 51a is arranged in a through groove of a second left slide hook seat 61b through the first left slide hook rod and forms a sliding pair with the second left slide hook seat 61 b; the first right slide hook 52a is formed by integrally fixedly connecting a first right slide hook rod and a first right slide hook from left to right, and the first right slide hook 52a is arranged in a through groove of the second right slide hook seat 61b through the first right slide hook rod and forms a sliding pair with the second right slide hook seat 61 b; the open ends of the first right slide hook and the first left slide hook are opened rightward.

The manual switching device 4 includes: an inner push-pull rod 42a, two auxiliary rods 42b and a push-pull handle 43; wherein the inner push-pull rod 42a is arranged inside the lifting rod 1 through the built-in guide block 62b and simultaneously slides left and right freely relative to the lifting rod 1; the left end and the right end of the inner push-pull rod 42a are provided with bending parts, and the bending parts at the left end and the right end respectively pass through the left slide hook rod and the right slide hook rod; one end of the auxiliary rod 42b is fixed on the first slide hook seat 61a and is arranged in the lifting rod 1 through auxiliary through holes on a plurality of built-in guide blocks 62b, and the two auxiliary rods 42b are respectively arranged on two sides of the lifting rod 1 so as to ensure the circumferential positioning of the manual switching device 4; the push-pull handle 43 is installed in the middle of the inner push-pull rod 42a and extends to the outside of the lifting rod 1.

when the lifting of the present embodiment is required, only to stand in front of the push-pull handle 43, lift the lifting lever 1 in place to a certain height, and then push the push-pull handle 43 to the right side so that the first left slide hook 51a and the first right slide hook 52a are hooked on the support rods 53 on the same side, respectively.

After rising, the distance between the supporting rod 53 on the main guide rod 2 and the lower fixing rod 1102 is smaller than the natural length of the sleeve wrapped on the main guide rod 2 of the mesh cloth 15, the distance between the lifting rod 1 and the bottom frame rod 13 is larger than the natural height of the mesh cloth 15, the design can prevent the sleeve at two ends of the mesh cloth 15 from being too tight when at the highest point, the unbalanced forces at two ends when the lifting rod 1 rises to the highest point are reduced, and the elasticity of the mesh cloth is utilized, so that most of the middle part of the mesh cloth 15 is in a tight state. (same as in example 1)

Embodiment 3 of the present invention as shown in fig. 6 to 10c, the description of the same parts as those of embodiment 1 in this embodiment is omitted below, and only the structure different from embodiment 1 will be described here;

the upper fixing rod 1101 and the lower fixing rod 1102 mounted on the same upright 12 are in the same direction, and are respectively provided with two mounting holes for mounting the main guide rod 2 and the secondary guide rod 3, the diameters of the main guide rod 2 and the secondary guide rod 3 are the same, and the upper end and the lower end of the main guide rod 2 and the secondary guide rod 3 are respectively mounted on the upper fixing rod 1101 and the lower fixing rod 1102 through the mounting holes; the cushion block 9 may not be provided in this embodiment;

The transmission positioning device 6 includes: two third slide hook seats 61c and a plurality of external guide blocks 62c; a plurality of external guide blocks 62c are arranged along the axial direction of the lifting rod 1 and outside the lifting rod 1, and the external guide blocks 62c are used for installing the push-pull rod 42; the third sliding hook seat 61c is integrally formed by a third sliding block seat and a downward-bending sliding seat, the two third sliding block seats 61c are respectively arranged in the left end and the right end of the lifting rod 1, and through grooves which can enable the third left sliding hook 51c and the third right sliding hook 52c to freely slide left and right are respectively formed in the third sliding block seats 61c positioned in the left end and the right end; two positioning holes which can enable the main guide rod 2 and the secondary guide rod 3 to pass through are formed in the downward bending sliding seat which is positioned obliquely below the third sliding seat;

the locking device 5 includes: two third slide hooks 51c and two pairs of fixing hooks 55; wherein, two pairs of fixing hooks 55 are respectively arranged below the left and right upper fixing rods 1101, the distance from the lower part of the fixing hooks 55 to the lower fixing rod 1102 is smaller than the natural length of a sleeve of the mesh cloth 15 wrapped on the main guide rod 2, and the distance between the lifting rod 1 and the bottom frame rod 13 is larger than the natural height of the mesh cloth 15; each pair of fixing hooks 55 is divided into an inner hook and an outer hook, the body of the inner hook is located at the inner side of the main guide rod 2 while the hook tip of the inner hook extends to the outer side of the main guide rod 2; the main body of the outer hook is positioned at the outer side of the secondary guide rod 3, and the hook tip of the outer hook extends into the inner side of the secondary guide rod 3; the third sliding hook 51c is formed by integrating a long sliding hook rod and a horizontal stop block, wherein a round angle is formed above one end of the long sliding hook rod, the horizontal stop block is arranged below the end of the long sliding hook rod, the thickness of the long sliding hook rod is smaller than the distance between the hook tips of the inner hook and the outer hook in each pair of fixed hooks 55, the width of the horizontal stop block is larger than the distance between the hook tips of the inner hook and the outer hook on the fixed hooks 55 and smaller than the distance between the main guide rod 2 and the secondary guide rod 3, the long sliding hook rods of the two third sliding hooks 51c are respectively arranged in third sliding hook seats 61c on two sides, and the two third sliding hooks 51c respectively form sliding pairs with the third sliding hook seats 61c on the side;

The manual switching device 4 includes: push-pull rod 42 and push-pull handle 43; wherein the push pull rod 42 is arranged outside the lifting rod 1 through a plurality of external guide blocks 62c and can slide left and right freely relative to the lifting rod 1; the left end and the right end of the push-pull rod 42 are provided with bending parts, and the distance between the bending parts at the left end and the right end is larger than the sum of the length of the lifting rod 1 and the distance to be moved by the push-pull handle 43, so that the push-pull rod 42 is always positioned outside the lifting rod 1; the bending parts at the left and right ends of the push-pull rod 42 respectively pass through the long slide hook rods of the slide hooks 51c at the third ends; the push-pull handle 43 is mounted on the push-pull rod 42 and is located near the middle of the push-pull rod 42.

The locking device 5 and the manual switching device 4 in this embodiment can be installed in a left-right mirror image with respect to the middle circular section of the lifter bar 1.

The two third slide hooks 51c on the two sides after the installation are subjected to equidistant displacement along with the left-right movement of the push-pull handle 43;

the two downward-bending sliding seats of the third sliding hook seat 61c after the installation are used for realizing the radial positioning of the lifting rod 1 on the main guide rod 2 and the secondary guide rod 3, and can ensure that the lifting rod 1 can freely slide up and down;

when the lifting of the present embodiment is required, only to stand in front of the push-pull handle 43, lift the lifting rod 1 to a certain height in situ, and then push the push-pull handle 43 to the right side so that the two third slide hooks 51c are respectively blocked on the tips of the inner hooks and the outer hooks which are opposite to each other on the same side.

After rising, the interval from the lower part of the fixed hook 55 to the lower fixed rod 1102 is smaller than the natural length of the sleeve wrapped on the main guide rod 2 of the mesh cloth 15, and the interval between the lifting rod 1 and the bottom frame rod 13 is larger than the natural height of the mesh cloth 15. (same as in example 1)

When the present embodiment needs to be lowered, the third sliding hooks 51c at the left and right ends can be simultaneously slid out of the shielding ranges of the two sets of fixing hooks 55 by pushing the push-out pull rod 8 to the left after the lowering rod 1 is slightly lifted, and then the lowering rod 1 is slowly lowered to above the lower fixing rod 1102 as the user gradually lowers the lowering rod 1.

Embodiment 4 of the present invention shown in fig. 13 to 15, the description of the same parts as those of embodiment 1 in this embodiment is omitted below, and only the structure different from embodiment 1 will be described here;

the upper fixing rod 1101 and the lower fixing rod 1102 mounted on the same upright 12 face the same direction, and are respectively provided with two mounting holes for mounting the main guide rod 2 and the secondary guide rod 3, and the upper end and the lower end of the main guide rod 2 and the secondary guide rod 3 are respectively mounted on the upper fixing rod 1101 and the lower fixing rod 1102 through the mounting holes, so that the diameters of the main guide rod 2 and the secondary guide rod 3 are the same; in the embodiment, the cushion block 9 is not arranged;

The manual switch device 4 comprises a rotary handle 44, a rotary shaft and a handle return spring 411, wherein the rotary handle 44 is arranged outside the lifting rod 1 through a rotary shaft, and the axle center of the rotary shaft and the axial midpoint of the lifting rod 1 are positioned on the same vertical plane; two ends of the handle return spring 411 are respectively arranged on the rotary handle 44 and the lifting rod 1;

the transmission positioning device 6 includes: two steel wires 63, two steel wire sleeves 64 and two rotating hook seats 61d, wherein the two ends of each steel wire sleeve 64 are provided with end fixing seats which are fixed on the lifting rod 1, the two rotating hook seats 61d are respectively arranged in the left end and the right end of the lifting rod 1, a part of each rotating hook seat 61d extends out of the lifting rod 1, the extending part of each rotating hook seat 61d is provided with two holes for the main guide rod 2 and the secondary guide rod 3 to pass through, and the extending part of each rotating hook seat 61d is provided with a groove for installing the rotating hook 54; two wire sleeves 64 are arranged on the left side and the right side of the lifting rod 1, and the two wire sleeves 64 are positioned on the same side of the rotary handle 44; one end of the steel wire 63 passes through the steel wire sleeve 64 to be connected with the rotating hook 54 on the side, and the other end is connected with the edge on the side of the rotating handle 44;

the locking device 5 comprises two rotating hooks 54 which are respectively arranged in a groove of one rotating hook seat 61d and two rotating hook return springs 412; both ends of the rotating hook return spring 412 are respectively installed at the inner side of the rotating hook 54 and the outermost end of the wire sleeve 64 and sleeved outside the wire 63, and the rotating hook 54 is hooked on the fixing rod 1101 at the same side to realize the positioning of the lifting rod 1 in the vertical direction;

The rotating hook 54 after the installation is rotated inward or outward with the active rotation of the rotating handle 44;

the two rotating hook seats 61d after the installation are used for realizing the radial positioning of the lifting rod 1 on the main guide rod 2 and the secondary guide rod 3, and can ensure that the lifting rod 1 can freely slide up and down;

when it is desired to raise the present embodiment, it is only necessary to stand in front of the rotary handle 44. Push the rotary handle 44 inward so that the left and right rotary hooks 54 are rotated inward, respectively; after lifting the lifting lever 1 in place until the hook tip of the rotating hook 54 is slightly higher than the upper fixed lever 1101, the rotating handle 44 is released, and then the lifting lever 1 is slowly released, at which time the two rotating hooks 54 will be hooked on the upper fixed lever 1101 on the same side respectively; the raised web 15 should be in a taut state (as in example 1).

When it is necessary to lower the present embodiment, only after lifting the lowering rod 1 slightly, the rotating handle 44 is pushed inward again to simultaneously rotate the two rotating hooks 54 out of the shielding range of the upper fixing rod 1101, and then when the user slowly releases the rotating handle 44 and gradually lowers the lowering rod 1, the lowering rod 1 slowly descends to above the lower fixing rod 1102.

Embodiment 5 of the present invention shown in fig. 14a and 14b, the description of the same parts as those of embodiment 4 in this embodiment is omitted below, and only the structure different from embodiment 4 will be described here;

The transmission positioning device 6 comprises two steel wire sleeves 64 and two steel wire wires 63 arranged in the two steel wire sleeves;

the manual switching device 4 includes: a first switch push rod 45e, a slide rail 46, a slide block 47, a first switch push block 48e, a first push block groove 49e and a first switch housing 410e; wherein, a first switch casing 410e integrally formed by an upper rectangular half-shell and a lower isosceles trapezoid half-shell is arranged outside the lifting rod 1, and a left steel wire sleeve 64 and a right steel wire sleeve 64 penetrate through holes at the left end and the right end of the first switch casing 410e, so that two steel wires 63 can enter the first switch casing 410e; a first push block groove 49e is vertically formed in the lower portion of the first switch shell 410e from the short side of the isosceles trapezoid half shell inwards, a first switch push block 48e is arranged in the first push block groove 49e and can slide up and down freely in the first push block groove 49e, two sliding rails 46 are symmetrically formed on the upper rectangular half shell of the first switch shell 410e, two sliding blocks 47 are respectively arranged in one sliding rail 46, the top ends, the middle parts and the lower ends of the left switch push rod 45 and the right switch push rod 45e are hinged with a steel wire 63, the sliding blocks 47 and the first switch push block 48e in sequence, and the lower ends of the two first switch push rods 45e are hinged with the same position of the first switch push block 48 e;

The symmetry plane of the installed first switch housing 410e is coplanar with the middle circular section of the lifting rod 1;

the long side of the upper rectangular half-shell in the first switch housing 410e is parallel to the axis of the lifting rod 1 after the installation is completed; the slide block 47 can freely slide left and right in the slide rail 46;

when the present embodiment needs to be lifted, only the first switch housing 410e needs to be standing in front, the first switch push block 48e is pushed inwards to rotate the left and right rotary hooks 54 inwards respectively; then lifting the lifting rod 1 in situ until the hook tip of the rotating hook 54 is slightly higher than the upper fixed rod 1101, gradually loosening the first switch pushing block 48e, and slowly releasing the lifting rod 1, wherein the two rotating hooks 54 are respectively hooked on the upper fixed rod 1101 on the same side; the lifted mesh 15 should be in a taut state.

When the present embodiment needs to be lowered, the first switch push block 48e is pressed again after the lowering rod 1 is lifted slightly, so that the two rotating hooks 54 can be simultaneously rotated out of the shielding range of the upper fixing rod 1101, and then when the first switch push block 48e is slowly released by the user and the lowering rod 1 is gradually lowered, the lowering rod 1 is slowly lowered to above the lower fixing rod 1102.

In the embodiment, the steel wire rope is positioned in the steel wire sleeve and can slide in the steel wire sleeve, and the switch of the embodiment can be used for lifting more conveniently, simply and quickly.

Embodiment 6 of the present invention shown in fig. 15a and 15b, the description of the same parts as those of embodiment 4 in this embodiment is omitted below, and only the structure different from embodiment 4 will be described here;

the manual switching device 4 includes: a switch push rod No. 45f, a switch push block No. 48f, a push block No. 49f recess, and a switch housing No. 410f; wherein, the second switch casing 410f integrally formed by the left and right identical second switch half-shells is installed outside the lifting rod 1, and the left and right wire sleeves 64 pass through holes at the left and right ends of the second switch casing 410f, so that the two wire cables 63 can enter the second switch casing 410f; the bottom surface of the second switch shell 410f is internally provided with a second push block groove 49f along the symmetry axis, the second switch push block 48f is arranged in the second push block groove 49f and can slide up and down freely in the second push block groove 49f, the top of the second switch push block 48f is provided with a protruding part, the opening of the second push block groove 49f is also provided with a protruding part, and the two protruding parts are matched to ensure that the second switch push block 48f cannot fall out of the second push block groove 49 f; a spring can be arranged at the top of the second switch push block 48 f; the two L-shaped second switch push rods 45f are respectively arranged in the left and right second switch half shells, the second switch push rods 45f are formed by a second right-angle push rod at the lower part and a second right-angle pull rod at the upper part into a whole, wherein the outer ends of the second right-angle push rods are provided with a waist-shaped groove, the outer ends of the second right-angle pull rods, inflection points and the outer ends of the second right-angle push rods of the left and right second switch push rods 45f are hinged with the steel wire 63, the second switch shell 410f and the second switch push block 48f in sequence, and the waist-shaped grooves at the outer ends of the two second right-angle push rods are hinged with the same position of the second switch push block 48 f;

The symmetry plane of the second switch housing 410f after the installation is coplanar with the middle circular section of the lifting rod 1;

the second switch push block 48f can freely slide in the second push block groove 49f after the installation is completed; the second switch pusher 48f automatically returns to the bottom of the second pusher groove 49f due to the rotary hook return spring 412 (same as embodiment 4) in the natural state;

when the present embodiment needs to be lifted, only the second switch pushing block 48f needs to be pushed inward to rotate the left and right rotary hooks 54 inward by standing in front of the second switch housing 410 f; then lifting the lifting rod 1 in situ until the hook tip of the rotating hook 54 is slightly higher than the upper fixed rod 1101, gradually loosening the second switch push block 48f, and slowly releasing the lifting rod 1, wherein the two rotating hooks 54 are respectively hooked on the upper fixed rod 1101 on the same side; the lifted mesh 15 should be in a taut state (as in example 1).

When the present embodiment needs to be lowered, the user only needs to slightly raise the lowering rod 1 and then press the switch push block 48f again to simultaneously rotate the two rotating hooks 54 out of the shielding range of the upper fixed rod 1101, and then slowly lower the lowering rod 1 above the lower fixed rod 1102 when the user slowly releases the switch push block 48f and gradually lowers the lowering rod 1.

Claims

1. A rapid in-situ vertical lift bed fence comprising: the lifting device comprises a lifting rod (1), two main guide rods (2), two secondary guide rods (3), a manual switching device (4), a locking device (5), a transmission positioning device (6), two pairs of fixed rod groups (11), two upright posts (12), a bottom frame rod (13), two pipe joints (14) and a piece of mesh cloth (15); wherein the locking devices (5) are arranged at the left end and the right end of the lifting rod (1); the manual switch device (4) is arranged in the middle of the lifting rod (1), the manual switch device (4) is connected with the locking device (5) through the transmission positioning device (6), and the main guide rod (2) and the secondary guide rod (3) penetrate through positioning holes at the outer side of the transmission positioning device (6) and enable the lifting rod (1) to slide up and down freely along the axial direction of the upright post (12);

two upright posts (12) are respectively arranged at two ends of one side edge of the adult bed, a pipe joint (14) is arranged below each upright post (12), and the two pipe joints (14) are connected through a bottom frame rod (13); the outer sides of the two upright posts (12) are provided with a pair of fixed rod groups (11), and each pair of fixed rod groups (11) consists of an upper fixed rod (1101) arranged at the upper part of the upright post (12) and a lower fixed rod (1102) arranged at the lower part of the upright post (12); the upper end and the lower end of the main guide rod (2) and the secondary guide rod (3) are respectively arranged on the upper fixed rod (1101) and the lower fixed rod (1102); the upper, lower, left and right sides of a rectangular mesh (15) are respectively sleeved on the lifting rod (1), the bottom frame rod (13) and the main guide rods (2) at two sides;

The transmission positioning device (6) comprises two directional sliding hook seats and a plurality of transverse guide blocks; the transverse guide blocks are arranged in the lifting rod (1) at intervals, the two directional sliding hook seats are arranged at the left end and the right end of the lifting rod (1) in a vertical rotating way by 180 degrees, and the main guide rod (2) and the secondary guide rod (3) penetrate through the positioning holes at the outer ends of the two sliding hook seats to realize the positioning of the lifting rod (1) in the vertical direction;

the locking device (5) comprises a pair of left sliding hooks (51 a) and right sliding hooks (52 a) with the same opening direction of the hooks, and two supporting rods (53); the first left slide hook (51 a) and the first right slide hook (52 a) are respectively arranged in the directional slide hook seats at the two ends of the lifting rod (1) and can slide left and right in the directional slide hook seats; the left support rod and the right support rod (53) are respectively arranged at the upper half part of one upright post (12) and are positioned at the same side of a fixed rod group (11) on the upright post (12), a through hole which can enable a secondary guide rod (3) to pass through is vertically formed at the end part of the outer side of the support rod (53), the distance between the support rod (53) and a lower fixed rod (1102) is smaller than the natural length of a sleeve of a mesh cloth (15) wrapped on a main guide rod (2), and the distance between a lifting rod (1) and a bottom frame rod (13) is larger than the natural height of the mesh cloth (15);

The manual switch device (4) comprises an elbow pull rod and a push-pull handle (43); the elbow pull rod with elbows at two ends is arranged on the lifting rod (1) through a transverse guide block, the elbows at two ends of the elbow pull rod respectively penetrate through the translational sliding hooks at two ends of the lifting rod (1), and the push-pull handle (43) is arranged near the middle of the elbow pull rod; the diameter of the main guide rod (2) is larger than or equal to that of the secondary guide rod (3); the axes of the upright post (12), the main guide rod (2) and the secondary guide rod (3) are parallel to each other;

when the diameter of the main guide rod (2) is larger than that of the secondary guide rod (3), the diameter of the main guide rod (2) is larger than that of the upper fixing rod (1101) and the lower fixing rod (1102), the diameter of the secondary guide rod (3) is smaller than that of the upper fixing rod (1101) and the lower fixing rod (1102), and the main guide rod (2) and the secondary guide rod (3) are respectively arranged on the upper fixing rod (1101) and the lower fixing rod (1102);

when the diameter of the main guide rod (2) is equal to that of the secondary guide rod (3), the upper fixing rod (1101) and the lower fixing rod (1102) are respectively provided with two mounting holes for mounting the main guide rod (2) and the secondary guide rod (3), and the upper end and the lower end of the main guide rod (2) and the lower end of the secondary guide rod (3) are respectively mounted on the upper fixing rod (1101) and the lower fixing rod (1102) through the mounting holes.

2. A rapid in-situ vertical lift bed fence as claimed in claim 1 wherein said upper (1101) and lower (1102) fixed bars are respectively sleeved with two pads (9) and the two pads (9) are respectively located between the upright (12) and the main guide bar (2) and the secondary guide bar (3); the distance among the upright post (12), the main guide rod (2) and the secondary guide rod (3) is equal to the thickness of the cushion block (9).

3. A rapid in situ vertical lift bed fence as claimed in claim 1 wherein said lateral guide blocks are overhanging guide blocks (62 a), the overhanging guide blocks (62 a) being provided with overhanging portions which project beyond a lifting bar (1); the overhanging portions are used for mounting an push-pull rod (42), and all overhanging portions are collinear;

the directional sliding hook seat is a first sliding hook seat (61 a), the first sliding hook seat (61 a) is integrally formed by a first sliding block seat and a main and auxiliary rod sliding seat, and a waist-shaped hole capable of enabling a first left sliding hook (51 a) and a first right sliding hook (52 a) to freely slide is horizontally formed in the first sliding block seat; two positioning holes which can enable the main guide rod (2) and the secondary guide rod (3) to pass through are vertically formed in the main and auxiliary rod sliding seat;

The first left sliding hook (51 a) is formed by integrally fixedly connecting a first left sliding hook and a first left sliding hook rod from left to right, and the first left sliding hook (51 a) is arranged in a through groove of the left sliding hook seat (61 a) through the first left sliding hook rod; the first right slide hook (52 a) is formed by fixedly connecting a first right slide hook rod and a first right slide hook from left to right, and the first right slide hook (52 a) is arranged in a through groove of the right slide hook seat (61 a) through the first right slide hook rod; the open ends of the first right sliding hook and the first left sliding hook face the same direction;

the elbow pull rod is an external push pull rod (42), and the external push pull rod (42) is arranged outside the lifting rod (1) through a plurality of external push guide blocks (62 a).

4. The rapid in-situ vertical lifting bed fence according to claim 1, wherein the transverse guide blocks are a plurality of built-in guide blocks (62 b) of the built-in guide blocks (62 b) which are arranged in the lifting rod (1) along the axial direction of the lifting rod (1), all the built-in guide blocks (62 b) are provided with two through holes at the same position, the main through holes and the auxiliary through holes are respectively used for arranging an inner push-pull rod (42 a) and an auxiliary rod (42 b), the auxiliary through holes are in interference fit with the auxiliary rod (42 b), and the main through holes are in clearance fit with the inner push-pull rod (42 a);

The directional sliding hook seat is a second sliding hook seat (61 b), wherein the second sliding hook seat (61 b) is integrally formed by a second sliding block seat and a main and auxiliary rod sliding seat, the inner side of the second sliding block seat is provided with a fixing hole for installing an auxiliary rod (42 b), and the fixing hole is positioned on the other side of the main and auxiliary rod sliding seat and corresponds to the position of the auxiliary through hole; two second sliding hook seats (61 b) are respectively arranged at the inner sides of the left end and the right end of the lifting rod (1) through respective second sliding block seats;

the first left sliding hook (51 a) is formed by integrally fixedly connecting a first left sliding hook and a first left sliding hook rod from left to right, and the first left sliding hook (51 a) is arranged in a through groove of a second left sliding hook seat (61 b) through the first left sliding hook rod; the first right sliding hook (52 a) is formed by integrally fixedly connecting a first right sliding hook rod and a first right sliding hook from left to right, and the first right sliding hook (52 a) is arranged in a through groove of a second right sliding hook seat (61 b) through the first right sliding hook rod; the opening ends of the first right slide hook and the first left slide hook are opened rightward;

the elbow pull rod is an inner push-pull rod (42 a), and the inner push-pull rod (42 a) is arranged in the lifting rod (1) through an inner guide block (62 b); the bending parts at the left end and the right end of the inner push-pull rod (42 a) respectively pass through a left slide hook rod and a right slide hook rod; the push-pull handle (43) extends out of the lifting rod (1);

The manual switching device (4) further comprises: also comprises two auxiliary rods (42 b); two auxiliary bars (42 b); one end of the auxiliary rod (42 b) is fixed on the first sliding hook seat (61 a) and is arranged in the lifting rod (1) through auxiliary through holes on a plurality of built-in guide blocks (62 b), and the two auxiliary rods (42 b) are respectively arranged on two sides of the lifting rod (1).

5. A rapid in-situ vertical lift bed fence comprising: the lifting device comprises a lifting rod (1), two main guide rods (2), two secondary guide rods (3), a manual switching device (4), a locking device (5), a transmission positioning device (6), two pairs of fixed rod groups (11), two upright posts (12), a bottom frame rod (13), two pipe joints (14) and a piece of mesh cloth (15); wherein the locking devices (5) are arranged at the left end and the right end of the lifting rod (1); the manual switch device (4) is arranged in the middle of the lifting rod (1), the manual switch device (4) is connected with the locking device (5) through the transmission positioning device (6), and the main guide rod (2) and the secondary guide rod (3) penetrate through positioning holes at the outer side of the transmission positioning device (6) and enable the lifting rod (1) to slide up and down freely along the axial direction of the upright post (12);

the transmission positioning device (6) comprises: two third slide hook seats (61 c) and a plurality of external guide blocks (62 c); a plurality of external guide blocks (62 c) are arranged along the axial direction of the lifting rod (1) and outside the lifting rod (1), and the external guide blocks (62 c) are used for installing the push-pull rod (42); the third sliding hook seat (61 c) is integrally formed by a third sliding block seat and a downward-bending sliding seat, the two third sliding hook seats (61 c) are respectively arranged in the left end and the right end of the lifting rod (1), and through grooves which can enable the third left sliding hook (51 c) and the third right sliding hook (52 c) to freely slide left and right are respectively formed in the third sliding hook seats (61 c) positioned in the left end and the right end; two positioning holes which can enable the main guide rod (2) and the secondary guide rod (3) to pass through are formed in the downward bending sliding seat which is obliquely arranged below the third sliding seat;

The locking device (5) comprises: two third slide hooks (51 c) and two pairs of fixed hooks (55); wherein, two pairs of fixing hooks (55) are respectively arranged below the left upper fixing rod (1101) and the right upper fixing rod (1101), the distance from the lower part of the fixing hooks (55) to the lower fixing rod (1102) is smaller than the natural length of a sleeve of the mesh cloth (15) wrapped on the main guide rod (2), and the distance between the lifting rod (1) and the bottom frame rod (13) is larger than the natural height of the mesh cloth (15); each pair of fixed hooks (55) is divided into an inner hook and an outer hook, the main body of the inner hook is positioned at the inner side of the main guide rod (2) while the hook tip of the inner hook extends into the outer side of the main guide rod (2); the main body of the outer hook is positioned at the outer side of the secondary guide rod (3), and meanwhile, the tip end of the hook of the outer hook extends into the inner side of the secondary guide rod (3); the third sliding hook (51 c) is formed by integrating a long sliding hook rod and a horizontal stop block, wherein a round angle is formed above one end of the long sliding hook rod, the horizontal stop block is arranged below the end of the long sliding hook rod, the thickness of the long sliding hook rod is smaller than the distance between the hook tips of an inner hook and an outer hook in each pair of fixed hooks (55), the width of the horizontal stop block is larger than the distance between the hook tips of the inner hook and the outer hook on the fixed hooks (55) and smaller than the distance between the main guide rod (2) and the secondary guide rod (3), the long sliding hook rods of the two third sliding hooks (51 c) are respectively arranged in third sliding hook seats (61 c) on two sides, and the two third sliding hooks (51 c) and the third sliding hook seats (61 c) on the side form sliding pairs;

The manual switching device (4) includes: an push-pull rod (42) and a push-pull handle (43); wherein the push pull rod (42) is arranged outside the lifting rod (1) through a plurality of external guide blocks (62 c) and simultaneously slides left and right freely relative to the lifting rod (1); the left end and the right end of the push-pull rod (42) are provided with bending parts, and the distance between the bending parts at the left end and the right end is larger than the sum of the length of the lifting rod (1) and the distance to be moved of the push-pull handle (43), so that the push-pull rod (42) is always positioned outside the lifting rod (1); the bending parts at the left end and the right end of the push-pull rod (42) respectively pass through long sliding hook rods of sliding hooks (51 c) at the third end; the push-pull handle (43) is arranged on the push-pull rod (42) and is positioned near the middle of the push-pull rod (42);

the diameter of the main guide rod (2) is larger than or equal to that of the secondary guide rod (3); the axes of the upright post (12), the main guide rod (2) and the secondary guide rod (3) are parallel to each other;

6. The rapid in-situ vertical lift bed fence of claim 5, characterized in that the upper fixed rod (1101) and the lower fixed rod (1102) are respectively sleeved with two cushion blocks (9), and the two cushion blocks (9) are respectively positioned between the upright post (12) and the main guide rod (2) and between the main guide rod (2) and the secondary guide rod (3); the distance among the upright post (12), the main guide rod (2) and the secondary guide rod (3) is equal to the thickness of the cushion block (9).

7. A rapid in-situ vertical lift bed fence comprising: the lifting device comprises a lifting rod (1), two main guide rods (2), two secondary guide rods (3), a manual switching device (4), a locking device (5), a transmission positioning device (6), two pairs of fixed rod groups (11), two upright posts (12), a bottom frame rod (13), two pipe joints (14) and a piece of mesh cloth (15); wherein the locking devices (5) are arranged at the left end and the right end of the lifting rod (1); the manual switch device (4) is arranged in the middle of the lifting rod (1), the manual switch device (4) is connected with the locking device (5) through the transmission positioning device (6), and the main guide rod (2) and the secondary guide rod (3) penetrate through positioning holes at the outer side of the transmission positioning device (6) and enable the lifting rod (1) to slide up and down freely along the axial direction of the upright post (12);

the manual switch device (4) comprises a rotary handle (44), a rotary shaft and a handle return spring (411), wherein the rotary handle (44) is arranged outside the lifting rod (1) through a rotary shaft, and the axis of the rotary shaft and the axial midpoint of the lifting rod (1) are positioned on the same vertical plane; two ends of a handle return spring (411) are respectively arranged on the rotary handle (44) and the lifting rod (1);

the transmission positioning device (6) comprises: two steel wires (63), two steel wire sleeves (64) and two rotating hook seats (61 d), wherein the two ends of each steel wire sleeve (64) are provided with end fixing seats which are fixed on the lifting rod (1), the two rotating hook seats (61 d) are respectively arranged in the left end and the right end of the lifting rod (1), one part of each rotating hook seat (61 d) extends out of the lifting rod (1), two holes for the main guide rod (2) and the secondary guide rod (3) to pass through are formed in the extending part of each rotating hook seat (61 d), and a groove for installing the rotating hook (54) is formed in the extending part of each rotating hook seat (61 d); the two steel wire sleeves (64) are arranged on the left side and the right side of the lifting rod (1), and the two steel wire sleeves (64) are positioned on the same side of the rotary handle (44); one end of the steel wire (63) passes through the steel wire sleeve (64) to be connected with the rotating hook (54) at the side, and the other end is connected with the edge at the side of the rotating handle (44);

The locking device (5) is provided with two rotating hooks (54) which are respectively arranged in a groove of a rotating hook seat (61 d) and two rotating hook return springs (412); the two ends of the rotating hook return spring (412) are respectively arranged at the inner side of the rotating hook (54) and the outermost end of the steel wire sleeve (64) and are sleeved outside the steel wire (63), and the rotating hook (54) is hooked on the fixed rod (1101) at the same side so as to realize the positioning of the lifting rod (1) in the vertical direction;

8. The rapid in-situ vertical lift bed fence of claim 7, characterized in that the upper fixed rod (1101) and the lower fixed rod (1102) are respectively sleeved with two cushion blocks (9), and the two cushion blocks (9) are respectively positioned between the upright post (12) and the main guide rod (2) and between the main guide rod (2) and the secondary guide rod (3); the distance among the upright post (12), the main guide rod (2) and the secondary guide rod (3) is equal to the thickness of the cushion block (9).

9. A rapid in situ vertical lift bed fence as in claim 7 wherein said manual switching device (4) comprises: a first switch push rod (45 e), a slide rail (46), a slide block (47), a first switch push block (48 e), a first push block groove (49 e) and a first switch shell (410 e); the first switch shell (410 e) which is formed by integrating an upper rectangular half shell and a lower isosceles trapezoid half shell up and down is arranged outside the lifting rod (1), and the left steel wire sleeve and the right steel wire sleeve (64) penetrate through holes at the left end and the right end of the first switch shell (410 e) so that two steel wires (63) enter the first switch shell (410 e); a first push block groove (49 e) is vertically formed in the lower portion of the first switch shell (410 e) from the short side of the isosceles trapezoid half shell inwards, a first switch push block (48 e) is arranged in the first push block groove (49 e) and can slide up and down freely in the first push block groove (49 e), two sliding rails (46) are symmetrically formed in the upper rectangular half shell of the first switch shell (410 e), two sliding blocks (47) are respectively arranged in one sliding rail (46), the top end, the middle portion and the lower end of a left switch push rod and a right switch push rod (45 e) are hinged with a steel wire (63), the sliding blocks (47) and the first switch push block (48 e) in sequence, and the lower ends of the two first switch push rods (45 e) are hinged with the same position of the first switch push block (48 e).

10. A rapid in situ vertical lift bed fence as in claim 7 wherein said manual switching device (4) comprises: a second switch push rod (45 f), a second switch push block (48 f), a second push block groove (49 f) and a second switch shell (410 f); the second switch shell (410 f) formed by integrating the left and right identical second switch half shells is arranged outside the lifting rod (1), and the left and right steel wire sleeves (64) penetrate through holes at the left end and the right end of the second switch shell (410 f) so that the two steel wire wires (63) enter the second switch shell (410 f); the bottom surface of the second switch shell (410 f) is internally provided with a second push block groove (49 f) along the symmetry axis, the second switch push block (48 f) is arranged in the second push block groove (49 f) and can slide up and down freely in the second push block groove (49 f), the top of the second switch push block (48 f) is provided with a protruding part, the opening of the second push block groove (49 f) is also provided with a protruding part, and the two protruding parts are matched to ensure that the second switch push block (48 f) cannot fall out of the second push block groove (49 f); a spring is arranged at the top of the second switch pushing block (48 f); two second switch push rods (45 f) which are L-shaped are respectively arranged in the left and right second switch half shells, the second switch push rods (45 f) are formed by a second right-angle push rod at the lower part and a second right-angle pull rod at the upper part into a whole, wherein a waist-shaped groove is formed at the outer end of each second right-angle push rod, the outer ends of the second right-angle pull rods of the left and right second switch push rods (45 f), inflection points and the outer ends of the second right-angle push rods are hinged with a steel wire (63), a second switch shell (410 f) and a second switch push block (48 f) in sequence, and the waist-shaped grooves at the outer ends of the two second right-angle push rods are all hinged with the same position of the second switch push block (48 f).