CN215826733U - Shallow and lifter locking mechanism thereof - Google Patents

Abstract

The utility model discloses a cart and a lifting rod locking mechanism thereof, wherein the lifting rod locking mechanism comprises a supporting tube, a lifting rod capable of ascending and descending along the supporting tube, a fixed chuck fixedly connected to the supporting tube and a button rotatably connected to the fixed chuck through a rotating pin, one end of the lifting rod is fixedly connected with a guide part, the guide part is provided with a limiting end face, the button is provided with a limiting bulge for abutting against the limiting end face to prevent the lifting rod from descending, and the limiting bulge is rotated to be separated from the limiting end face by pressing the button so that the lifting rod can retract into the supporting tube. Above-mentioned lifter locking mechanism is because the button adopts the rotational pin to rotate and connects on fixed chuck, can simplify the structure, and only need press the button during the operation and can realize the operation, and this operating mode utilizes lever principle, on the basis of guaranteeing overall structure reliability, makes the operation laborsaving, convenient more.

Description

Shallow and lifter locking mechanism thereof

Technical Field

The utility model relates to the technical field of outdoor articles, in particular to a lifting rod locking mechanism. The utility model also relates to a trolley with the lifting rod locking mechanism.

Background

Shallow on the market mainly includes the wheel subassembly that is located the bottom and locates the fluffy pole locking mechanism that goes up and down of wheel subassembly top, and wherein, fluffy pole locking mechanism that goes up and down includes stay tube and fluffy pole, utilizes the concertina movement of fluffy pole in the stay tube to realize fluffy pole altitude mixture control, the location of fluffy pole is realized through the button. Specifically, the button passes through spring coupling on the stay tube, and fluffy pole can pass the button, sets up the spacing groove on the fluffy pole, and the button is equipped with the spacing arch of embedding spacing groove. When the fluffy rod needs to be positioned, the button is loosened, and the limiting bulge is embedded into the limiting groove, so that the fluffy rod is fixed at the preset height; when the button is pressed, the limiting protrusion is separated from the limiting groove, and at the moment, the tent rod can move in a lifting mode. However, the above arrangement has complex structure, high cost and insufficient firmness, and the button is relatively laborious to operate, resulting in inconvenient disassembly and assembly.

Therefore, how to avoid the problems of the traditional lifting tent rod locking mechanism that the operation is laborious and the disassembly and assembly are inconvenient is a technical problem which needs to be solved by the technical personnel in the field at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a lifting rod locking mechanism which can simplify the structure and save labor and facilitate operation on the basis of ensuring the reliability of the whole structure. It is another object of the present invention to provide a cart including the above-described lifter lock mechanism.

In order to achieve the above object, the present invention provides a lifter locking mechanism, which includes a support tube, a lifter capable of ascending and descending along the support tube, a fixed chuck fixedly connected to the support tube, and a button rotatably connected to the fixed chuck through a rotating pin, wherein one end of the lifter is fixedly connected to a guide, the guide has a limit end surface, the button is provided with a limit protrusion for abutting against the limit end surface to prevent the lifter from descending, and the limit protrusion is rotated to be separated from the limit end surface by pressing the button to allow the lifter to retract into the support tube.

Optionally, the axis of the rotation pin is arranged in a horizontal direction.

Optionally, the limiting device further comprises an elastic element, and the elastic element can provide elastic force for the button to enable the limiting protrusion to rotate to be in contact with and abut against the limiting end face.

Optionally, the fixed chuck is provided with a holding groove for holding the button, one end of the button, which is away from the limiting protrusion, is provided with a pressing portion, and two ends of the elastic piece respectively abut against the holding groove and the pressing portion.

Optionally, a guide chuck is further disposed in the support tube, and the guide chuck is used for being engaged with the guide when the lifting rod descends to a preset height so as to block the lifting rod from ascending.

Optionally, the guide chuck includes a plurality of clamping blocks arranged along the circumferential direction, an inner wall of any one of the clamping blocks is provided with a clamping and embedding protrusion protruding along the inner side direction, and the bottom of the guide member is provided with a plurality of damping convex points arranged along the circumferential direction and used for being in contact with and abutting against the clamping and embedding protrusion.

Optionally, the guide member includes a protruding portion protruding in the radial direction, a top surface of the protruding portion is a limiting conical surface for preventing the guide member from being separated from the fixed chuck, and a bottom surface of the protruding portion is the limiting end surface.

Optionally, the guide chuck is specifically an integrally injection molded chuck.

The utility model also provides a cart comprising the lifting rod locking mechanism.

Optionally, the vehicle body further comprises a soft-surface vehicle body, wherein four corners of the soft-surface vehicle body are respectively provided with a pressing block, and a detachable clamping head which is fixed by a rivet and is used for being connected with the fixed clamping head in an inserting mode.

Compared with the background art, the lifting rod locking mechanism provided by the embodiment of the utility model comprises a supporting pipe and a lifting rod, wherein the lifting rod is sleeved in the supporting pipe and can move telescopically along the supporting pipe so as to realize ascending and descending; further, lifter locking mechanism still includes fixed dop and button, fixed dop rigid coupling is on the stay tube, the button passes through the rotational pin and rotates to be connected on fixed dop, the one end rigid coupling of lifter has the guide, the guide is equipped with spacing terminal surface, the button is equipped with spacing arch, this spacing arch is used for supporting spacing terminal surface in order to prevent that the lifter from descending, in addition, through pressing the button, spacing arch can be changeed to breaking away from spacing terminal surface, in order to supply the lifter to retract in the stay tube. That is, when the lifting rod is used, the lifting rod is lifted to a set height, and the limiting bulge on the button abuts against the limiting end face of the guide piece, so that the lifting rod is maintained at a fixed height and cannot fall off; after the lifting pipe is used, the limiting protrusion is rotated to be separated from the limiting end face by pressing the button, and the lifting rod retracts into the supporting pipe under the action of dead weight. Above-mentioned mode of setting up, because the button adopts the rotational pin to rotate to be connected on fixed chuck, can simplify the structure, and only need press the button during the operation and can realize the operation, this mode of operation utilizes lever principle, on the basis of guaranteeing overall structure reliability, makes the operation more laborsaving, convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is an exploded view of a lifter locking mechanism provided in accordance with an embodiment of the present invention;

FIG. 2 is a schematic view of the lifting rod ascending to the maximum height;

FIG. 3 is a schematic view of the structure of the lifting rod in a retracted state;

FIG. 4 is a schematic view of the guide member disassembled from the guide chuck;

FIG. 5 is a schematic view of an alternative button assembly of the lifter lock mechanism according to an embodiment of the present invention;

FIG. 6 is a schematic view of the button of FIG. 5 in a locked state;

FIG. 7 is a schematic view of the button of FIG. 5 in an unlocked state;

FIG. 8 is an external view of FIG. 5;

fig. 9 is a schematic view of the fixed chuck of fig. 8 with the removable chuck and compression block assembled;

fig. 10 is a schematic structural diagram of a cart according to an embodiment of the present invention;

FIG. 11 is a schematic view of the hood of FIG. 10 in a disassembled state;

FIG. 12 is a schematic structural view of the softside vehicle body of FIG. 10 in an installed state;

FIG. 13 is a schematic structural view of the softside vehicle body of FIG. 10 in a disassembled state;

fig. 14 is a schematic view of the parts of fig. 12 in a disassembled state.

Wherein:

1-supporting tube, 2-fixed clamping head, 21-accommodating groove, 3-lifting rod, 4-button, 41-limit protrusion, 42-pressing part, 401-rotating pin, 5-elastic part, 6-guide part, 61-protrusion part, 611-limit end face, 612-limit conical surface, 62-damping salient point, 7-guide clamping head, 71-clamping block, 72-clamping protrusion, 8-soft surface vehicle body, 9-pressing block, 10-detachable clamping head, 11-plug, 12-awning clamping head and 13-awning.

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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The core of the utility model is to provide a lifting rod locking mechanism which can simplify the structure and save and facilitate the operation on the basis of ensuring the reliability of the whole structure. Another core of the present invention is to provide a cart including the above-described lifter lock mechanism.

In order that those skilled in the art will better understand the disclosure, the utility model will be described in further detail with reference to the accompanying drawings and specific embodiments.

It should be noted that the following directional terms such as "upper end, lower end, left side, right side" and the like are defined based on the drawings of the specification.

Referring to fig. 1 to 14, fig. 1 is an exploded view of a lifter locking mechanism according to an embodiment of the present invention; FIG. 2 is a schematic view of the lifting rod ascending to the maximum height; FIG. 3 is a schematic view of the structure of the lifting rod in a retracted state; FIG. 4 is a schematic view of the guide member disassembled from the guide chuck; FIG. 5 is a schematic view of an alternative button assembly of the lifter lock mechanism according to an embodiment of the present invention; FIG. 6 is a schematic view of the button of FIG. 5 in a locked state; FIG. 7 is a schematic view of the button of FIG. 5 in an unlocked state; FIG. 8 is an external view of FIG. 5; fig. 9 is a schematic view of the fixed chuck of fig. 8 with the removable chuck and compression block assembled; fig. 10 is a schematic structural diagram of a cart according to an embodiment of the present invention;

FIG. 11 is a schematic view of the hood of FIG. 10 in a disassembled state; FIG. 12 is a schematic structural view of the softside vehicle body of FIG. 10 in an installed state; FIG. 13 is a schematic structural view of the softside vehicle body of FIG. 10 in a disassembled state; fig. 14 is a schematic view of the parts of fig. 12 in a disassembled state.

The lifting rod locking mechanism provided by the embodiment of the utility model comprises a supporting tube 1 and a lifting rod 3, wherein the supporting tube 1 is arranged along the vertical direction, and the lifting rod 3 is sleeved in the supporting tube 1 and can move telescopically along the supporting tube 1 so as to realize ascending and descending.

Further, lifter locking mechanism still includes fixed dop 2 and button 4, fixed dop 2 rigid coupling in the top of stay tube 1, button 4 rotates through rotating pin 401 and connects on fixed dop 2, the one end rigid coupling of lifter 3 has guide 6, guide 6 is equipped with spacing terminal surface 611, button 4 is equipped with spacing arch 41, this spacing arch 41 is used for supporting spacing terminal surface 611 in order to prevent that lifter 3 from descending, in addition, through pressing button 4, spacing arch 41 can rotate to breaking away from spacing terminal surface 611, in order to supply lifter 3 to retract in the stay tube 1.

That is, when in use, the lifting rod 3 is lifted to a set height, and the limiting protrusion 41 on the button 4 abuts against the limiting end surface 611 of the guide member 6, so that the lifting rod 3 is maintained at a fixed height and cannot fall down; after use, the limiting protrusion 41 is rotated to be separated from the limiting end surface 611 by pressing the button 4, and the lifting rod 3 retracts into the supporting tube 1 under the action of self-weight.

Above-mentioned mode of setting up, because button 4 adopts rotational pin 401 to rotate and connects on fixed dop 2, can simplify the structure, and only need press button 4 during the operation can realize the operation, this mode of operation utilizes lever principle, on the basis of guaranteeing overall structure reliability, makes the operation more laborsaving, convenient.

As a specific example, the axis of the rotating pin 401 is arranged in a horizontal direction, that is, the axis of rotation of the push button 4 is arranged in a horizontal direction, and the push button 4 is arranged in a vertical direction. Specifically, one end of the button 4 having the limiting protrusion 41 faces upward, and the pressing portion 42 of the button 4 faces downward; a hinge hole for allowing the rotation pin 401 to hinge is formed at a lower position of the middle portion of the button 4, and the rotation pin 401 is specifically a pin.

In order to facilitate the reset of the pressed button 4, the elastic member 5 is further included, and the elastic member 5 can provide an elastic force for the button 4 to make the limit protrusion 41 rotate to contact and abut against the limit end surface 611. The elastic member 5 may be provided as a compression spring in particular.

Of course, according to actual needs, the fixing chuck 2 is provided with an accommodating groove 21 for accommodating the button 4, one end of the button 4 away from the limiting protrusion 41 is provided with a pressing portion 42, and two ends of the elastic member 5 respectively abut against between the accommodating groove 21 and the pressing portion 42. Specifically, can set up the first stopper that is used for contacting the counterbalance with the one end of elastic component 5 in the holding tank 21, press the inner wall of splenium 42 to set up the second stopper that is used for contacting the counterbalance with the other end of elastic component 5, of course, also can set up a guide post that is used for supplying elastic component 5 cover to establish at the inner wall of splenium 42, so, the other end of elastic component 5 can support and hold on pressing the inner wall of splenium 42.

As another specific example, the axis of the rotation pin 401 is disposed in the vertical direction, the axis of the rotation pin 401 is parallel to the axis of the support tube 1, that is, the push button 4 is horizontally disposed, and the push button 4 is rotationally moved about the vertical rotation center line. Simultaneously, the one end that spacing arch 41 was kept away from to button 4 also can set up elastic component 5 to in button 4 resets after pressing, the button 4 of level setting is just distinguished in the position with the button 4 of vertical setting, and other structures can be the same, as long as can realize above-mentioned spacing lifter 3 elevating movement and realize relieving spacing function through pressing button 4 can.

The vertically arranged push button 4 is specifically explained below as an example.

In order to limit the lifting rod 3 when the lifting rod 3 descends to the bottom of the supporting tube 1, a guide clamping head 7 is further arranged in the supporting tube 1, and the guide clamping head 7 is used for being clamped and embedded with the guide piece 6 when the lifting rod 3 descends to a preset height, so that the purpose of preventing the lifting rod 3 from ascending is achieved. The guide chuck 7 has certain damping performance, and when the guide piece 6 descends to be in clamping fit with the guide chuck 7, the damping performance of the guide chuck 7 can prevent the lifting rod 3 from being pulled out within a certain pulling force range.

More specifically, the guide chuck 7 includes a plurality of circumferentially arranged chuck blocks 71, the center of all the chuck blocks 71 is a central cavity for the guide member 6 to be clamped in, the inner wall of any one of the chuck blocks 71 is provided with a clamping and embedding protrusion 72 protruding in the inner side direction, and correspondingly, the bottom of the guide member 6 is provided with a plurality of circumferentially arranged damping protrusions 62 for abutting against the clamping and embedding protrusion 72. The damping projections 62 project radially outward of the guide member 6, and the number of the damping projections 62 may be equal to or greater than the number of the latch 71.

Of course, the snap-fit structure may also be other structures, for example, the structure of the damping protrusion 62 may also be replaced by an annular protrusion, which is not limited in this document.

Guide 6 is integrative injection moulding's structure with direction dop 7, the integrated into one piece of guide 6 and direction dop 7 of so can being convenient for, and simultaneously, injection moulding's direction dop 7 has elasticity, when the bottom card of guide 6 is gone into in the direction dop 7, the structure that a plurality of fixture blocks 71 constitute can open certain angle slightly, and the protruding 72 top of inlay card has the inclined plane, so that guide 6 card is gone into, after the protruding 72 of inlay card is crossed to damping bump 62 on guide 6, a plurality of fixture blocks 71 resume to primary importance, at this moment, when outwards dialling out lifter 3, a plurality of damping bumps 62 can offset with the protruding 72 contact of inlay card, thereby obstruct lifter 3 to rise.

Further, the guide 6 includes a protrusion 61 protruding in the radial direction, a top surface of the protrusion 61 is a stopper tapered surface 612 for preventing the guide 6 from being detached from the fixed chuck 2, and a bottom surface of the protrusion 61 is a stopper end surface 611. The top of the fixed chuck 2 has a necking structure, and the maximum outer diameter of the protrusion 61 is larger than the inner diameter of the necking structure, so that when the lifting rod 3 rises until the limit conical surface 612 of the protrusion 61 contacts and abuts against the necking structure and cannot rise continuously, the limit protrusion 41 of the button 4 can abut against the limit end surface 611 of the guide 6, and the lifting rod 3 is maintained at a fixed height.

The utility model provides a cart, which comprises the lifting rod locking mechanism described in the specific embodiment; the soft surface vehicle body 8 is a rectangular structure with an opening at the upper end and is used for placing articles, and the four supporting tubes 1 are respectively arranged at the preset positions of four corners of the soft surface vehicle body 8 and are used for supporting the soft surface vehicle body 8.

All be equipped with compact heap 9 and can dismantle dop 10 on four angles of soft face automobile body 8, can dismantle dop 10 and compact heap 9 through fix with rivet on soft face automobile body 8, because fixed dop 2 rigid coupling on stay tube 1, during the installation, directly will dismantle dop 10 insert fixed dop 2 in can, during the dismantlement, will dismantle dop 10 break away from fixed dop 2 can.

In addition, the top of the cart is also provided with a hood 13, the hood 13 is specifically of a rectangular structure, four corners of the hood 13 are provided with hood clamp heads 12, one end of the lifting rod 3, which is far away from the guide part 6, is provided with a plug 11, and when the hood 13 is used, the lifting rod 3 provided with the plug 11 is only required to be clamped with the hood clamp heads 12. Other parts of the cart can be referred to the prior art and are not expanded herein.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The cart and the lifting rod locking mechanism thereof provided by the utility model are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are provided only to help understand the concepts of the present invention and the core concepts thereof. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a lifter locking mechanism, includes supporting tube (1) and can follow the ascending lifter (3) with the decline of supporting tube (1), its characterized in that, still include the rigid coupling in fixed dop (2) on supporting tube (1) with rotate through rotating pin (401) connect in button (4) on the fixed dop (2), the one end rigid coupling of lifter (3) has guide (6), guide (6) are equipped with spacing terminal surface (611), button (4) are equipped with and are used for supporting spacing terminal surface (611) are in order to prevent spacing arch (41) that lifter (3) descend, through pressing button (4), spacing arch (41) are changeed to breaking away from spacing terminal surface (611), for lifter (3) retract in supporting tube (1).

2. The lifter lock mechanism according to claim 1, wherein an axis of the rotation pin (401) is disposed in a horizontal direction.

3. The lifter lock mechanism according to claim 2, further comprising an elastic member (5), wherein the elastic member (5) provides the button (4) with an elastic force to rotate the stopper protrusion (41) against the stopper end surface (611).

4. The lifter lock mechanism according to claim 3, wherein the fixed chuck (2) has a receiving groove (21) for receiving the button (4), a pressing portion (42) is provided at an end of the button (4) away from the limiting protrusion (41), and both ends of the elastic member (5) respectively abut against between the receiving groove (21) and the pressing portion (42).

5. The lifter bar locking mechanism according to any of claims 1 to 4, wherein a guide chuck (7) is further provided in the support tube (1) to be engaged with the guide member (6) in a snap-fit manner when the lifter bar (3) is lowered to a predetermined height to block the lifter bar (3) from being raised.

6. The lifter lock mechanism according to claim 5, wherein the guide chuck (7) includes a plurality of circumferentially arranged catching blocks (71), an inner wall of any one of the catching blocks (71) is provided with a catching protrusion (72) protruding in an inner direction, and a bottom of the guide member (6) is provided with a plurality of circumferentially arranged damping protrusions (62) to be in contact with the catching protrusion (72).

7. The lifter lock mechanism according to claim 5, wherein the guide (6) includes a protrusion (61) protruding in a radial direction, a top surface of the protrusion (61) is a stopper tapered surface (612) for preventing the guide (6) from coming off the fixed chuck (2), and a bottom surface of the protrusion (61) is the stopper end surface (611).

8. Lifter locking mechanism according to claim 6, characterized in that the guide jaw (7) is embodied as an integrally injection molded jaw.

9. A cart comprising a lifter bar locking mechanism according to any of claims 1-8.

10. The cart according to claim 9, further comprising a soft-surface cart body (8), wherein the soft-surface cart body (8) is provided with pressing blocks (9) at four corners, and a detachable chuck (10) fixed with the pressing blocks (9) through rivets and used for being inserted into the fixed chuck (2).

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