CN115744546A

CN115744546A - Freight elevator for building site

Info

Publication number: CN115744546A
Application number: CN202310001119.XA
Authority: CN
Inventors: 朱广盛; 吴文宏; 施文清
Original assignee: Three Stars Elevator Co ltd
Current assignee: Three Stars Elevator Co ltd
Priority date: 2023-01-03
Filing date: 2023-01-03
Publication date: 2023-03-07
Anticipated expiration: 2043-01-03
Also published as: CN115744546B

Abstract

The invention discloses a cargo transportation elevator for a building site, and relates to the technical field of elevators. The utility model provides a freight elevator for building site, including car mechanism and frame mechanism, car mechanism includes the bottom plate, the upper surface middle part of bottom plate has seted up the groove of standing, the lateral wall in groove of standing is the slope form, the speed limit groove has all been run through at the four-side wall middle part of bottom plate, equal fixedly connected with base on two mutual just right inside walls in speed limit groove, that one side fixedly connected with deckle board that two just right bases are close mutually, the middle part of deckle board presents the annular, the equal fixedly connected with stand group in upper surface four corners department of bottom plate, every stand group includes two stands, the cross-section of two stands all presents the L type, two stand oblique angles are just right, the common fixedly connected with roof in upper end of four stand groups, the inside in speed limit groove is provided with speed-limiting mechanism, this kind of freight elevator for building site, in-process that falls in car mechanism restricts car mechanism, make the device prevent falling.

Description

Freight elevator for building site

Technical Field

The invention relates to the technical field of elevators, in particular to a freight elevator for a building site.

Background

An elevator is a permanent transport device that serves several specific floors in a building, the car of which travels on at least two rigid tracks perpendicular to the horizontal or inclined at an angle of less than fifteen degrees to the vertical. Manned cargo carrying machinery of often using in the building work progress for accelerate the efficiency of construction, improve the convenience of building site transportation.

Compared with a formal elevator, the elevator used on the building site is relatively simple and crude in appearance, the safety is slightly low, workers on the building site have relatively poor consciousness degree to safety accidents, sometimes in order to accelerate the working efficiency, a plurality of persons take a construction elevator to work on a floor at the same time, although the number of people carrying the load is marked on the construction elevator, the same construction elevator is frequently carried, so that the condition of the load of the construction elevator is caused, the overload problem of the construction elevator is aggravated, the elevator can fall under severe conditions, in addition, the weight for transporting goods by using the construction elevator is generally heavier, the construction elevator is in a working state with larger load gravity for a long time, in addition, the goods can impact the construction elevator frequently, the construction elevator is extremely easy to damage and fall, the phenomenon of people and goods sharing is often caused on the building site, when the construction elevator is damaged, great harm can also be brought to the workers, and therefore the goods transportation elevator for the building site is urgently needed, and the problem of falling is solved.

Disclosure of Invention

The invention aims to provide a goods transportation elevator for a construction site, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the cargo transportation elevator for the building site comprises a car mechanism and a frame mechanism, wherein the car mechanism comprises a bottom plate, a station groove is formed in the middle of the upper surface of the bottom plate, the side wall of the station groove is inclined, a speed-limiting groove is formed in the middle of each of four side walls of the bottom plate in a penetrating mode, bases are fixedly connected to two inner side walls, opposite to each other, of the speed-limiting grooves, a frame plate is fixedly connected to one surface, close to the two opposite bases, of the frame plate, the middle of the frame plate is annular, column groups are fixedly connected to four corners of the upper surface of the bottom plate, each column group comprises two columns, the cross sections of the two columns are L-shaped, oblique angles of the two columns are opposite, and a top plate is fixedly connected to the upper ends of the four column groups; the speed limiting groove is internally provided with four speed limiting mechanisms which are centrosymmetric by taking the center of the bottom plate as an axis.

Preferably, the speed limiting mechanism comprises a rotary drum, a first bridge plate is fixedly connected to the upper side of the rotary drum in an embedded mode, one end, far away from the bottom plate, of the first bridge plate is flush with one end, far away from the bottom plate, of the rotary drum, one end, near the bottom plate, of the first bridge plate is bent downwards, one side, near the bottom plate, of the first bridge plate is provided with an arc surface, and is partially attached to the inner wall of the speed limiting groove.

Preferably, two ends of the main shaft respectively penetrate through and are fixedly sleeved with turntables, the end face of the main shaft is flush with the surface of the two turntables which deviates from each other, and the turntables are correspondingly embedded into the frame plate and movably connected with the frame plate through bearings; the two turnplates are fixedly connected with a fluid chamber in the middle of the surface which deviates from each other, the fluid chamber is hollow, non-Newtonian fluid is filled in the fluid chamber, a chamber plug is sleeved in the fluid chamber and is matched with the fluid chamber, leak holes are uniformly formed in the surface of the chamber plug in a penetrating mode at equal intervals, side frames are fixedly connected in the middle of the upper surface and the lower surface of the chamber plug, one end, far away from the chamber plug, of each side frame penetrates through the fluid chamber, wheel shafts are fixedly connected to the two side faces of the end, far away from the chamber plug, of each side frame, and the rotating wheels are movably sleeved on the outer sides of the wheel shafts through bearings.

Preferably, the outer side of the fluid bin is sleeved with an outer ring, the outer ring is annular and has the same width as the fluid bin, the lower end of the outer ring is fixedly connected with the base, the front and the rear of the inner side wall of the outer ring are both provided with annular grooves, and the rotating wheel is correspondingly embedded into the annular grooves and is matched with the annular grooves; the center of the outer ring is positioned right above the center of the turntable.

Preferably, the frame mechanism comprises a ladder frame, the cross section of the ladder frame is U-shaped and the opening of the ladder frame faces forwards, upper ports and lower ports of the ladder frame are both embedded into fixedly connected frame frames, the frame frames are square frame-shaped, the inner wall of the ladder frame is uniformly and fixedly provided with four floor columns at equal intervals, and the four floor columns are vertically arranged and all present U-shaped with the opening facing forwards; the downside the dull and stereotyped one of inside embedding fixedly connected with of frame, the equal fixedly connected with rail frame of dull and stereotyped one's upper surface four corners department, four the common fixedly connected with of upper end of rail frame is dull and stereotyped two, dull and stereotyped two embedding fixed connection upsides in the frame, the lower surface middle part fixed mounting of dull and stereotyped two has haulage mechanism, haulage mechanism's internally mounted has the rope of towing, the lower extreme of towing the rope stretches out the upper surface middle part of haulage mechanism and fixed connection roof.

Preferably, the rail frame corresponds the surface four corners of running through bottom plate and roof, the stand group corresponds the parcel in the outside of rail frame, the lower part outside of rail frame is around being connected with spring one, the dull and stereotyped one of lower extreme fixed connection of spring one and its upper end fixed connection bottom plate, the upper portion outside of rail frame is around being connected with spring two, the dull and stereotyped two of upper end fixed connection of spring two and its lower extreme fixed connection roof.

Preferably, layer connecting mechanisms are arranged on four sides between the first flat plate and the second flat plate, the four layer connecting mechanisms are centrosymmetric by taking the centers of the first flat plate and the second flat plate as axes, each layer connecting mechanism comprises four main boards, the four main boards are arranged at equal intervals from top to bottom, connecting columns penetrate through and are fixedly connected to the two end surfaces of the four main boards together, the upper ends of the connecting columns are fixedly connected with the second flat plate, and the lower ends of the connecting columns are fixedly connected with the first flat plate; the middle part of one surface of the main plate close to the car mechanism is fixedly connected with a connecting plate, and one end surface of the connecting plate close to the car mechanism is arc-shaped; the equal fixedly connected with layer splint in that one side both ends that the car mechanism was kept away from to the mainboard, the cross-section of layer splint presents U style of calligraphy and opening orientation and deviates from the direction of car mechanism, the front side layer splint installation joint on the mechanism of connecing is on corresponding building floor board, all the other three sides layer splint installation joint on the mechanism of connecing is on the speed limit groove that corresponds.

Preferably, the below of car mechanism is provided with buffer gear, buffer gear includes the bellows, the inside cavity of bellows just has the elasticity, the lower surface middle part of the last fixed surface of bellows connection bottom plate, the upper surface middle part of the dull and stereotyped one of lower fixed surface connection of bellows, the even fixedly connected with trachea that runs through of lower extreme outside equidistance of bellows, that one end that the bellows was kept away from to the trachea runs through the fixedly connected with gasbag, the inside cavity of gasbag just has elasticity, the dull and stereotyped one of lower fixed surface connection of gasbag, the outside of gasbag is run through and fixed mounting has the air leak valve.

Compared with the prior art, the invention has the beneficial effects that:

(1) This kind of freight elevator for building site, building site need use the elevator to transport goods, thereby start the traction mechanism and make car mechanism stop at corresponding floor through the traction of towing the rope, the upper surface of bottom plate is parallel with floor surface this moment, the upper surface of bridge plate one is parallel with the upper surface of bottom plate and is docked with bottom plate and fishplate bar simultaneously this moment, bridge plate two is kept away from that one end of bottom plate and is buckled and contradict in the below position of fishplate bar, thereby the workman carries thereby the goods dolly can be smooth entering into the building floor through bridge plate one and fishplate bar this moment, and when pushing down bridge plate one this moment, conflict through bridge plate two and fishplate bar, then speed limit mechanism can not take place the motion, thereby accomplish the bridging between car mechanism and the fishplate bar and the building floor through speed limit mechanism, avoid the problem of gap joint wheel between car mechanism and the building floor, make workman transport more convenient and fast when the goods.

(2) This freight elevator for building site, when normal transportation car mechanism, when bridge plate two or bridge plate one contact the fishplate bar alright make the rotary drum rotate one hundred eighty degrees, thereby make bridge plate one and bridge plate two take place the reversal, the motion of cooperation car mechanism, thereby make car mechanism can the free running, when the elevator takes place the phenomenon of falling, in the unit time, the frequency of passing between car mechanism and the building floor can great increase, and can make the quick upset between bridge plate one and the bridge plate two, under this kind of circumstances, the carousel also can fast turn round, drive the fluid chamber fast rotation, thereby make the side bearer drive the runner and slide in the annular, because the center of outer loop is in the top at the carousel center, thereby make the side bearer be restricted by the outer loop in the pivoted process, thereby make the storehouse stopper need be in the continuous removal in the inside of fluid chamber thereby adapt to its rotation, but when the rotational speed is too fast, the removal of storehouse stopper just can be restricted to the inside non-Newtonian fluid in the fluid chamber, thereby make speed limiting deceleration mechanism or stop rotating, thereby the in-process of falling of car mechanism is restricted, make the device of falling.

(3) This kind of freight elevator for building site, through the existence of the inside non-Newtonian fluid of fluid chamber to the joint is motionless when can not making car mechanism fall, works as car mechanism and slows down the back under the removal restriction of storehouse stopper, and car mechanism still can descend automatically, can make like this that car mechanism descends to the one deck with lower speed gradually, thereby can help inside workman and the goods safety of car mechanism to fall to the ground when appearing dangerous, improves the safety in utilization of elevator.

(4) This freight elevator for building site, the seting up of through-station groove to and at the in-process of car mechanism operation, bridge plate one and the upset all the time of bridge plate two meeting, thereby make the marginal part of bottom plate can't stand, thereby make accommodation space in the elevator reduce, avoid the work area can crowd then crowded idea get into car mechanism in, cause car mechanism to overload, the load number of restriction car mechanism that can be better, guarantee the operation safety of elevator.

(5) This freight elevator for building site, through the design that connects layer mechanism to and the cooperation of speed limit mechanism, thereby the position that car mechanism stopped at every turn all can make the first bridge plate flush with the fishplate bar surface, when car mechanism stops to remove after discovery the first bridge plate and when having the clearance between the fishplate bar, can make clear and definite stop the problem that appears of elevator, thereby make the workman can be comparatively audio-visual problem of discovery elevator, make the early warning, the accident rate of reduction elevator that can be very big.

(6) This freight elevator for building site, design through buffer gear, under the state of elevator normal transportation, the bellows can follow the rising of car mechanism and inhale and follow the decline of car mechanism and pass through the air leak valve gas leakage, but when the elevator descends rapidly, the gas leakage speed of air leak valve can not catch up with the falling speed of car mechanism then can make in bellows and the gasbag gaseous the reservation, make synchronous inflation of bellows and gasbag, cushion the elevator that descends, guarantee the safety of the inside personnel of car mechanism and goods, further improve the security that the elevator bore.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the frame structure of the present invention;

FIG. 3 is a schematic view of the entire layer joining mechanism of the present invention;

FIG. 4 is a schematic view of a portion of a layer joining mechanism according to the present invention;

fig. 5 is a schematic view of the position of the car mechanism of the present invention;

FIG. 6 is a schematic view of a damping mechanism according to the present invention;

FIG. 7 is a schematic view of the position of the speed limiting mechanism of the present invention;

fig. 8 is a schematic view of the car mechanism of the present invention;

FIG. 9 is a schematic view of the speed limiting mechanism of the present invention;

FIG. 10 is a schematic view of a drum attachment according to the present invention;

FIG. 11 is a schematic view of the interior of a fluid cartridge according to the present invention;

FIG. 12 is a plan view of the speed limiting mechanism of the present invention.

In the figure: 1. a car mechanism; 101. a base plate; 102. a station slot; 103. a speed limiting groove; 104. a base; 105. a frame plate; 106. a column set; 107. a top plate; 2. a speed limiting mechanism; 201. a drum; 202. a first bridge plate; 203. a second bridge plate; 204. a main shaft; 205. a turntable; 206. a fluid chamber; 207. a bin plug; 208. a leak hole; 209. a side frame; 210. a wheel axle; 211. a rotating wheel; 212. an outer ring; 213. a ring groove; 3. a frame mechanism; 301. a ladder frame; 302. a frame; 303. a floor column; 304. a first flat plate; 305. a rail frame; 306. a second flat plate; 307. a traction mechanism; 308. a hoisting rope; 309. a first spring; 310. a second spring; 4. a layer connecting mechanism; 401. a main board; 402. connecting a plate; 403. a layer clamp plate; 404. connecting columns; 5. a buffer mechanism; 501. a bellows; 502. an air pipe; 503. an air bag; 504. an air leakage valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-12, the present invention provides a technical solution: a cargo transportation elevator for a building site comprises a car mechanism 1 and a frame mechanism 3, wherein the car mechanism 1 comprises a bottom plate 101, a station groove 102 is formed in the middle of the upper surface of the bottom plate 101, the side wall of the station groove 102 is inclined, a speed-limiting groove 103 is formed in the middle of each of the four side walls of the bottom plate 101 in a penetrating mode, an upper port of the station groove 102 is close to the speed-limiting groove 103, bases 104 are fixedly connected to two inner side walls, opposite to the speed-limiting groove 103, a frame plate 105 is fixedly connected to one side, close to the two bases 104, opposite to the side wall, of the frame plate 105, the middle of the frame plate 105 is annular, column groups 106 are fixedly connected to four corners of the upper surface of the bottom plate 101, each column group 106 comprises two columns, the cross sections of the two columns are L-shaped, oblique angles of the two columns are opposite to each other (as shown in figure 8), and top plates 107 are fixedly connected to the upper ends of the four column groups 106; the speed-limiting mechanism 2 is arranged in the speed-limiting groove 103, and the four speed-limiting mechanisms 2 are in central symmetry with the center of the bottom plate 101 as an axis.

The speed limiting mechanism 2 comprises a rotating drum 201, a first bridge plate 202 is fixedly connected to the upper side of the rotating drum 201 in an embedded mode, one end, far away from the bottom plate 101, of the first bridge plate 202 is flush with one end, far away from the bottom plate 101, of the rotating drum 201, one end, close to the bottom plate 101, of the first bridge plate 202 is bent downwards, one side, close to the bottom plate 101, of the first bridge plate 202 is in an arc shape and partially attached to the inner wall of the speed limiting groove 103, the upper surface of the first bridge plate 202 is flush with the upper surface of the bottom plate 101, a second bridge plate 203 is fixedly connected to the lower side of the rotating drum 201 in an embedded mode, one end, close to the bottom plate 101, of the first bridge plate 202 is flush with one end, close to the bottom plate 101, of the second bridge plate 203 is bent upwards, one side, far away from the bottom plate 101, of the second bridge plate 203 is in an arc shape, the first bridge plate 202 and the second bridge plate 203 are in a central symmetry mode with the rotating drum 201 as an axis (as shown in figures 10 and 12), and a main shaft 204 penetrates through the middle of the rotating drum 201 and is fixedly connected.

The two ends of the main shaft 204 respectively penetrate through and are fixedly sleeved with the turntables 205, the end surfaces of the main shaft 204 are flush with the surfaces of the two turntables 205 which are deviated from each other, and the turntables 205 are correspondingly embedded into the frame plates 105 and movably connected with the frame plates 105 through bearings; the middle parts of the surfaces of the two rotating discs 205, which face away from each other, are fixedly connected with a fluid chamber 206, the fluid chamber 206 is hollow, non-Newtonian fluid is filled in the fluid chamber 206, a chamber plug 207 is sleeved in the fluid chamber 206, the chamber plug 207 is matched with the interior of the fluid chamber 206, the chamber plug 207 can move along the fluid chamber 206 in the fluid chamber 206, leak-proof holes 208 are uniformly formed in the surface of the chamber plug 207 in a penetrating manner at equal intervals, side frames 209 are fixedly connected to the middle parts of the upper and lower surfaces of the chamber plug 207, one end, far away from the chamber plug 207, of each side frame 209 penetrates through the fluid chamber 206, leak-proof treatment is performed between the connecting parts of the side frames 209 and the fluid chamber 206, wheel shafts 210 are fixedly connected to the two side surfaces of the end, far away from the chamber plug 207, of each side frame 209, and rotating wheels 211 are movably sleeved outside the wheel shafts 210 through bearings.

An outer ring 212 is sleeved on the outer side of the fluid bin 206, the outer ring 212 is annular and has the same width as the fluid bin 206, the lower end of the outer ring 212 is fixedly connected with the base 104, the front and the rear of the inner side wall of the outer ring 212 are both provided with annular grooves 213, and the rotating wheel 211 is correspondingly embedded into the annular grooves 213 and is matched with the annular grooves 213; the center of the outer ring 212 is directly above the center of the turntable 205.

The frame mechanism 3 comprises a ladder frame 301, the ladder frame 301 is of a detachable structure, the section of the ladder frame 301 is U-shaped and has a forward opening, an upper port and a lower port of the ladder frame 301 are both embedded and fixedly connected with a frame 302, the frame 302 is square, the inner wall of the ladder frame 301 is uniformly and fixedly provided with laminate columns 303 at equal intervals, the distance between the laminate columns 303 can be correspondingly adjusted and installed according to specific building floors, the number of the laminate columns 303 is four, and the four laminate columns 303 are vertically arranged and have a U-shaped forward opening; the flat plate I304 is fixedly connected with the frame 302 on the lower side in an embedded mode, the rail frames 305 are fixedly connected with the four corners of the upper surface of the flat plate I304, the flat plate II 306 is fixedly connected with the upper ends of the four rail frames 305 in a common mode, the flat plate II 306 is embedded into the frame 302 on the upper side in a fixed connection mode, the traction mechanism 307 is fixedly installed in the middle of the lower surface of the flat plate II 306, the traction rope 308 is installed inside the traction mechanism 307, and the lower end of the traction rope 308 extends out of the middle of the upper surface of the traction mechanism 307 and is fixedly connected with the top plate 107.

The rail frame 305 correspondingly penetrates through four corners of the surfaces of the bottom plate 101 and the top plate 107, the upright column group 106 correspondingly wraps the outer side of the rail frame 305, a first spring 309 is wound and connected to the outer side of the lower portion of the rail frame 305, the lower end of the first spring 309 is fixedly connected with a first flat plate 304, the upper end of the first spring is fixedly connected with the bottom plate 101, a second spring 310 is wound and connected to the outer side of the upper portion of the rail frame 305, the upper end of the second spring 310 is fixedly connected with a second flat plate 306, and the lower end of the second spring is fixedly connected with the top plate 107.

The four sides between the first flat plate 304 and the second flat plate 306 are respectively provided with a connecting mechanism 4, the four connecting mechanisms 4 are centrosymmetric by taking the centers of the first flat plate 304 and the second flat plate 306 as axes, each connecting mechanism 4 comprises four main boards 401, the four main boards 401 are arranged at equal intervals from top to bottom, the two end surfaces of the four main boards 401 are jointly penetrated and fixedly connected with connecting columns 404, the upper ends of the connecting columns 404 are fixedly connected with the second flat plate 306, and the lower ends of the connecting columns 404 are fixedly connected with the first flat plate 304; a connecting plate 402 is fixedly connected to the middle of one side of the main plate 401 close to the car mechanism 1, and the end of the connecting plate 402 close to the car mechanism 1 is arc-shaped (as shown in fig. 12); both ends of the side, far away from the car mechanism 1, of the main board 401 are fixedly connected with layer clamping plates 403, the cross sections of the layer clamping plates 403 are in a U shape, the opening faces the direction departing from the car mechanism 1, the layer clamping plates 403 on the layer connecting mechanism 4 on the front side are installed and clamped on the corresponding building floor plate, and the layer clamping plates 403 on the layer connecting mechanisms 4 on the other three sides are installed and clamped on the corresponding speed limiting grooves 103.

The below of car mechanism 1 is provided with buffer gear 5, buffer gear 5 includes bellows 501, the inside cavity of bellows 501 and have the elasticity, the lower surface middle part of the last fixed surface of bellows 501 connection bottom plate 101, the upper surface middle part of the dull and stereotyped 304 of lower fixed surface of bellows 501, the even fixedly connected with trachea 502 that runs through of lower extreme outside equidistance of bellows 501, fixedly connected with gasbag 503 is run through to that one end that bellows 501 was kept away from to trachea 502, the inside cavity of gasbag 503 and elasticity have, the dull and stereotyped 304 of lower fixed surface of gasbag 503 is connected, the outside of gasbag 503 is run through and fixed mounting has air leak valve 504, air leak valve 504 makes gasbag 503 leak gas slow.

The working principle is as follows:

the first step is as follows: the elevator is needed to be used for transporting goods in a building site, the traction mechanism 307 is started to enable the car mechanism 1 to stop at a corresponding floor through traction of the traction rope 308, at the moment, the upper surface of the bottom plate 101 is parallel to the floor surface of the floor, at the moment, the upper surface of the first bridge plate 202 is parallel to the upper surface of the bottom plate 101 and is in butt joint with the bottom plate 101 and the connecting plate 402 at the same time, one end, away from the bottom plate 101, of the second bridge plate 203 is bent and abutted to the lower position of the connecting plate 402, at the moment, a worker carries a goods trolley to smoothly enter a building floor through the first bridge plate 202 and the connecting plate 402, when the first bridge plate 202 is pressed downwards, the second bridge plate 203 is abutted to the connecting plate 402, the speed limiting mechanism 2 cannot move, bridging between the car mechanism 1, the connecting mechanism 4 and the building floor is completed through the speed limiting mechanism 2, the problem that wheels are clamped in a gap between the car mechanism 1 and the building floor is solved, and the worker can transport goods more conveniently and quickly.

The second step is that: when the car mechanism 1 is normally transported, when the bridge plate two 203 or the bridge plate one 202 contacts the connecting plate 402, the rotating cylinder 201 can be rotated by one hundred eighty degrees, so that the bridge plate one 202 and the bridge plate two 203 are reversed, and the car mechanism 1 can freely run by matching the motion of the car mechanism 1, when the elevator falls, the passing frequency between the car mechanism 1 and a building floor can be greatly increased in unit time, and the bridge plate one 202 and the bridge plate two 203 can be rapidly turned over, in this case, the rotating disc 205 can also rapidly rotate to drive the fluid chamber 206 to rapidly rotate, so that the side frame 209 drives the rotating wheel 211 to slide in the annular groove 213, because the center of the outer ring 212 is positioned above the center of the rotating disc 205, the side frame 209 is limited by the outer ring 212 in the rotating process, so that the chamber plug 207 needs to continuously move in the fluid chamber 206 to adapt to the rotation, but when the rotating speed is too fast, the non-newtonian fluid in the fluid chamber 206 can limit the movement of the chamber plug 207, so that the mechanism 2 or the speed of the falling mechanism is limited, so that the speed of the car mechanism 1 can be reduced, and the falling speed limiting device can be reduced.

The third step: through the existence of the non-Newtonian fluid in the fluid chamber 206, the clamping is not moved when the car mechanism 1 falls, after the car mechanism 1 decelerates under the movement limitation of the chamber plug 207, the car mechanism 1 can still automatically descend, so that the car mechanism 1 gradually descends to one floor at a lower speed, workers and goods in the car mechanism 1 can safely fall to the ground when danger occurs, and the use safety of the elevator is improved.

The fourth step: through the arrangement of the station slot 102 and in the operation process of the car mechanism 1, the first bridge plate 202 and the second bridge plate 203 can be always turned over, so that the edge part of the bottom plate 101 cannot stand, the accommodating space in the elevator is reduced, the phenomenon that the elevator mechanism 1 is overloaded due to the fact that the elevator mechanism can enter the car mechanism 1 in a squeezing mode with the squeezing idea is avoided, the number of people on the load of the car mechanism 1 can be better limited, and the operation safety of the elevator is guaranteed.

The fifth step: through the design of the layer connecting mechanism 4 and the cooperation with the speed limiting mechanism 2, the position that the car mechanism 1 stops at every turn can make the first bridge plate 202 flush with the fishplate bar 402 surface, when the car mechanism 1 stops moving and finds that there is a clearance between the first bridge plate 202 and the fishplate bar 402, the stopping problem of the elevator can be made clear and definite, so that the worker can find the problem of the elevator more intuitively, early warning is made, and the accident rate of the elevator can be greatly reduced.

And a sixth step: through buffer gear 5's design, under the state of elevator normal transportation, bellows 501 can follow the rising of car mechanism 1 and inhale and follow the decline of car mechanism 1 and pass through air leak valve 504 gas leakage, but when the elevator descends rapidly, the gas leakage speed of air leak valve 504 can not catch up with the falling speed of car mechanism 1 then can make bellows 501 and gasbag 503 in the gas retention, make bellows 501 and gasbag 503 synchronous inflation, cushion the elevator that descends, guarantee the safety of the inside personnel of car mechanism 1 and goods, further improve the security that the elevator bore.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a freight elevator for building site, includes car mechanism (1) and frame mechanism (3), car mechanism (1) includes bottom plate (101), station groove (102) have been seted up at the upper surface middle part of bottom plate (101), the lateral wall of station groove (102) is the slope form, its characterized in that: the middle parts of four side walls of the bottom plate (101) are respectively provided with a speed-limiting groove (103) in a penetrating mode, the two inner side walls, opposite to each other, of the speed-limiting grooves (103) are respectively and fixedly connected with a base (104), the side, close to the two opposite bases (104), of each base is fixedly connected with a frame plate (105), the middle part of each frame plate (105) is annular, four corners of the upper surface of the bottom plate (101) are respectively and fixedly connected with a stand column group (106), each stand column group (106) comprises two stand columns, the cross sections of the two stand columns are respectively L-shaped, the oblique angles of the two stand columns are opposite, and the upper ends of the four stand column groups (106) are jointly and fixedly connected with a top plate (107);

the speed limiting mechanism is characterized in that speed limiting mechanisms (2) are arranged inside the speed limiting groove (103), and the four speed limiting mechanisms (2) are in central symmetry by taking the center of the bottom plate (101) as an axis.

2. The cargo transporting elevator for construction sites according to claim 1, wherein: the speed limiting mechanism (2) comprises a rotary drum (201), a first bridge plate (202) is fixedly connected to the upper side of the rotary drum (201) in an embedded mode, one end, far away from the bottom plate (101), of the first bridge plate (202) is flush with one end, far away from the bottom plate (101), of the rotary drum (201), one end, close to the bottom plate (101), of the first bridge plate (202) is bent downwards, one side, close to the bottom plate (101), of the first bridge plate (202) is cambered and partially attached to the inner wall of the speed limiting groove (103), the upper surface of the first bridge plate (202) is flush with the upper surface of the bottom plate (101), a second bridge plate (203) is fixedly connected to the lower side of the rotary drum (201) in an embedded mode, one end, close to the bottom plate (101), of the first bridge plate (202) is flush with one end, close to the bottom plate (101), of the second bridge plate (203), one end, far away from the bottom plate (101), of the second bridge plate (203), is bent upwards, one bridge plate (202) is cambered, one end, far away from the bottom plate (101) is symmetrical with the center of the rotary drum (201), and the center of the rotary drum (201) of the first bridge plate (202) and the middle of the rotary drum (203) is connected with a main shaft (204).

3. The cargo transporting elevator for construction sites according to claim 2, wherein: the two ends of the main shaft (204) are respectively penetrated and fixedly sleeved with turntables (205), the end surface of the main shaft (204) is flush with the surface of the two turntables (205) which deviates from each other, and the turntables (205) are correspondingly embedded into the frame plate (105) and movably connected with the frame plate (105) through bearings;

the two turntables (205) are fixedly connected with a fluid chamber (206) in the middle of the surface deviating from each other, the fluid chamber (206) is hollow, non-Newtonian fluid is filled in the fluid chamber (206), a chamber plug (207) is sleeved in the fluid chamber (206), the chamber plug (207) is matched with the fluid chamber (206), leak holes (208) are uniformly formed in the surface of the chamber plug (207) in a penetrating mode in an equidistant mode, side frames (209) are fixedly connected with the middle of the upper surface and the lower surface of the chamber plug (207), one end, far away from the chamber plug (207), of each side frame (209) penetrates through the fluid chamber (206), wheel shafts (210) are fixedly connected with the two side faces of the end, far away from the chamber plug (207), of each side frame (209), and rotating wheels (211) are movably sleeved on the outer sides of the wheel shafts (210) through bearings.

4. The cargo transportation elevator for construction sites according to claim 3, characterized in that: an outer ring (212) is sleeved on the outer side of the fluid bin (206), the outer ring (212) is annular and has the same width as the fluid bin (206), the lower end of the outer ring (212) is fixedly connected with the base (104), annular grooves (213) are formed in the front and the rear of the inner side wall of the outer ring (212), and the rotating wheel (211) is correspondingly embedded into the annular grooves (213) and is matched with the annular grooves (213);

the center of the outer ring (212) is positioned right above the center of the turntable (205).

5. The freight elevator for construction site according to claim 4, wherein: the frame mechanism (3) comprises a ladder frame (301), the cross section of the ladder frame (301) is U-shaped, the opening of the ladder frame is forward, upper ports and lower ports of the ladder frame (301) are fixedly connected with frame frames (302) in an embedded mode, the frame frames (302) are square frame type, the inner wall of the ladder frame (301) is uniformly and fixedly provided with laminated columns (303) at equal intervals, the number of the laminated columns (303) is four, and the four laminated columns (303) are vertically arranged and are all U-shaped, the opening of the laminated columns is forward;

the downside the inside embedding fixedly connected with of frame (302) is dull and stereotyped (304), the equal fixedly connected with rail frame (305) of upper surface four corners department of dull and stereotyped (304), four the common fixedly connected with of upper end of rail frame (305) is dull and stereotyped two (306), dull and stereotyped two (306) embedding fixed connection upside in frame (302), the lower surface middle part fixed mounting of dull and stereotyped two (306) has traction mechanism (307), the internally mounted of traction mechanism (307) has haulage rope (308), the lower extreme of haulage rope (308) stretches out the upper surface middle part of traction mechanism (307) and fixed connection roof (107).

6. The cargo transporting elevator for construction sites according to claim 5, wherein: the rail frame (305) correspondingly runs through four corners of the surface of the bottom plate (101) and the top plate (107), the column set (106) correspondingly wraps the outer side of the rail frame (305), the outer side of the lower portion of the rail frame (305) is wound with a first spring (309), the lower end of the first spring (309) is fixedly connected with a first flat plate (304) and the upper end of the first spring (309) is fixedly connected with the bottom plate (101), the outer side of the upper portion of the rail frame (305) is wound with a second spring (310), and the upper end of the second spring (310) is fixedly connected with a second flat plate (306) and the lower end of the second spring (310) is fixedly connected with the top plate (107).

7. The cargo transporting elevator for construction sites according to claim 5, wherein: four sides between the first flat plate (304) and the second flat plate (306) are respectively provided with a layer connecting mechanism (4), the four layer connecting mechanisms (4) are centrosymmetric by taking the centers of the first flat plate (304) and the second flat plate (306) as axes, each layer connecting mechanism (4) comprises four main boards (401), the four main boards (401) are arranged at equal intervals from top to bottom, connecting columns (404) penetrate through and are fixedly connected to the surfaces of the two ends of the four main boards (401), the upper ends of the connecting columns (404) are fixedly connected with the second flat plate (306), and the lower ends of the connecting columns (404) are fixedly connected with the first flat plate (304);

the middle part of one surface of the main plate (401) close to the car mechanism (1) is fixedly connected with a connecting plate (402), and one end surface of the connecting plate (402) close to the car mechanism (1) is arc-shaped;

the car mechanism (1) is kept away from to mainboard (401) that one side both ends equal fixedly connected with layer splint (403), the cross-section of layer splint (403) presents the U style of calligraphy and the opening orientation deviates from the direction of car mechanism (1), the front side connect layer splint (403) installation joint on layer mechanism (4) on the corresponding building floor board, all the other three sides connect layer splint (403) installation joint on layer mechanism (4) on the speed limit groove (103) that correspond.

8. The cargo transporting elevator for construction sites according to claim 1, wherein: the below of car mechanism (1) is provided with buffer gear (5), buffer gear (5) include bellows (501), the inside cavity of bellows (501) and have the elasticity, the lower surface middle part of last fixed surface connection bottom plate (101) of bellows (501), the upper surface middle part of the dull and stereotyped (304) of lower fixed surface connection of bellows (501), the even fixedly connected with trachea (502) that runs through of lower extreme outside equidistance of bellows (501), fixedly connected with gasbag (503) is run through to that one end that bellows (501) were kept away from in trachea (502), the inside cavity of gasbag (503) and have elasticity, the dull and stereotyped (304) of lower fixed surface connection of gasbag (503), run through and fixed mounting has air leak valve (504) in the outside of gasbag (503).