CN210526592U

CN210526592U - Handrail structure for handcart

Info

Publication number: CN210526592U
Application number: CN201921135646.5U
Authority: CN
Inventors: 李庆丰
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-05-15
Anticipated expiration: 2029-07-18

Abstract

The utility model discloses a handrail structure for handcart, including first handrail structure, the second handrail structure of direction height-adjusting about the ability, first handrail structure includes the connecting piece of being connected with back foot pipe, with the first handrail of connecting piece articulated, with first handrail articulated and with the movable support of preceding foot pipe conflict, with the first spring of movable support articulated, the connecting piece is articulated with first handrail, the connecting piece is articulated with preceding foot pipe, first handrail is connected with the back board. After pulling the certain distance outwards with movable support, put down the pressure and conduct pressure to movable support through first spring with first handrail, thereby make movable support hug closely preceding foot pipe along the surperficial slip of preceding foot pipe and realize folding first handrail until first handrail, loosen the screw, remove the movable rod, can realize the regulation of arbitrary gear height, arbitrary one side around the handrail can be installed to the back board, the utility model discloses one side is arbitrary around the handrail can be installed to the back board.

Description

Handrail structure for handcart

Technical Field

The utility model relates to a handrail structure for handcart.

Background

In order to reduce the space occupied by the pushchair when not in use or when being transported, the prior art has appeared with foldable pushchairs, some of which are designed to be folded only by folding the front and rear legs thereof in the longitudinal direction, but the position of the armrests is not foldable, and the volume after folding is still not small enough. In addition, the height of the handle can not be adjusted by a plurality of gears, and the direction of the backboard of the handcart can not be changed for use, which often brings a lot of inconvenience to users.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a handrail structure for a handcart.

The utility model provides a technical scheme that its technical problem adopted is: the handrail structure for the handcart comprises a first handrail structure, a second handrail structure and a first spring, wherein the first handrail structure is installed on the side face of a rear foot pipe and is hinged to a front foot pipe, the second handrail structure is installed on the upper side of the rear foot pipe and can adjust the height in the vertical direction, the first handrail structure comprises a connecting piece connected with the rear foot pipe, a first handrail hinged to the connecting piece, a movable support hinged to the first handrail and abutted to the front foot pipe, and the first spring hinged to the movable support, the connecting piece is hinged to the first handrail, the connecting piece is hinged to the front foot pipe, and the first handrail is connected with a back board.

Preferably, the connecting piece is sleeved on the outer side of the rear foot tube and fixedly connected with the rear foot tube, the connecting piece is provided with a first central shaft penetrating through the first handrail and the front foot tube, the connecting piece is hinged with the first handrail through the first central shaft, and the connecting piece is hinged with the front foot tube through the first central shaft.

Preferably, the first armrest is hollow and provided with a first opening facing the connecting piece and a second opening facing the movable support, a third central shaft for hinging the backrest plate, a first support part capable of supporting the backrest plate and a second support part capable of supporting the backrest plate are arranged on the side surface of the first armrest, and the first support part and the second support part are respectively positioned on two sides of the third central shaft.

Preferably, the movable support is triangle-shaped, triangle-shaped's movable support erects first limit, second limit, third limit, form first angle, second angle, third angle between first limit, second limit, the third limit, first angle is equipped with the center pin two that first handrail was passed at both ends, first spring cup joints in the outside of center pin two and inject in first handrail, the second angle is equipped with the fixed axle, the arc is established to the third limit.

Preferably, second handrail structure is including cup jointing the movable rod in the back foot pipe, connecting the second handrail at the movable rod upside, the movable rod passes through screw and back foot pipe fixed connection, establish spring mechanism between movable rod and the back foot pipe, spring mechanism includes the spring bracket who is connected with back foot pipe, inject spring bracket two in spring bracket, spring two is close to the one end of movable rod and establishes the marble, the shrinkage pool that linear arrangement was gone up in a plurality of vertical direction is established to one side that the movable rod is close to the marble.

Preferably, the first spring is provided with a torsion spring having a first torsion arm and a second torsion arm.

The utility model provides a handrail structure for handcart, with the movable support after outwards pulling the certain distance, put down first handrail and press and conduct pressure to the movable support through first spring, thereby it is folding with first handrail to make the movable support hug closely preceding foot pipe realization until first handrail along the surperficial slip of preceding foot pipe, need resume the user state messenger with the handcart, upwards stimulate first handrail and conduct pulling force to the movable support through first spring, make the movable support resume the user state until first handrail along the surperficial slip of preceding foot pipe. Loosen the screw, remove the movable rod, every shrinkage pool that touches of marble sends the sound promptly to can realize the regulation of arbitrary gear height, arbitrary one side around the handrail can be installed to the back board, the utility model discloses arbitrary one side around first handrail can be installed to the back board.

The utility model discloses simple structure, convenient to use.

Drawings

The invention will be further described with reference to the following figures and examples:

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

FIG. 2 is an enlarged view of the area A in FIG. 1;

FIG. 3 is a top view of FIG. 1;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

fig. 5 is a schematic diagram of the explosion structure of the present invention;

fig. 6 is a partial structural schematic view of the first handrail of the present invention;

fig. 7 is a schematic mechanism diagram of the movable support of the present invention.

Detailed Description

Referring to fig. 1 to 7, the present invention is implemented as follows: handrail structure for handcart uses on the handcart, including install in the back foot pipe 1 side and with preceding foot pipe 2 articulated first handrail structure 3, install in the back foot pipe 1 upside and can the second handrail structure 4 of direction height-adjusting from top to bottom, first handrail structure 3 includes the connecting piece 31 of being connected with back foot pipe 1, with connecting piece 31 articulated first handrail 32, with first handrail 32 articulated and with preceding foot pipe 2 conflict movable support 33, with movable support 33 articulated first spring 34 of 33, connecting piece 31 is articulated with first handrail 32, connecting piece 31 is articulated with preceding foot pipe 2, first handrail 32 is connected with back board 5.

The connecting piece 31 is sleeved on the outer side of the rear foot tube 1 and fixedly connected with the rear foot tube 1 through a screw, the connecting piece 31 is provided with a central shaft I311 passing through the first handrail 32 and the front foot tube 2, the connecting piece 31 is hinged with the first handrail 32 through the central shaft I311, and the connecting piece 31 is hinged with the front foot tube 2 through the central shaft I311. The first handrail 32 can rotate around a first central shaft 311.

The first armrest 32 is hollow and provided with a first opening 321 facing the connecting member 31 and a second opening 322 facing the movable support 33, the side surface of the first armrest 32 is provided with a third central shaft 323 for hinging the backrest plate 5, a first support portion 324 capable of supporting the backrest plate 5 and a second support portion 325 capable of supporting the backrest plate 5, and the first support portion 324 and the second support portion 325 are respectively positioned on two sides of the third central shaft 323.

The first opening 321 enables the first handrail 32 to avoid the connecting piece 31 when rotating around the first central shaft 311, and the second opening 322 enables the first handrail 32 to rotate around the first central shaft 311 to avoid the movable support 33. The back board 5 is hinged at the central shaft three 323, the back board 5 is supported by the first support part 324 or the second support part 325, the user can select the first support part 324 or the second support part 325 according to the use requirement, and the back board 5 can be arranged at any side of the front and the back of the first handrail 32.

The movable support 33 is triangular, the triangular movable support 33 is provided with a first edge 331, a second edge 332 and a third edge 333, a first corner 334, a second corner 335 and a third corner 336 are formed between the first edge 331, the second edge 332 and the third edge 333, the first edge 331 is abutted against the front foot tube 2, the first corner 334 is provided with a second central shaft 337 with two ends penetrating through the first handrail 32, the first spring 34 is sleeved outside the second central shaft 337 and limited in the first handrail 32, and the second corner 335 is provided with a fixed shaft 338. The third side 333 is curved.

The first spring 34 is a torsion spring having a first torsion arm 341 and a second torsion arm 342, when the first armrest 32 is in use, the first torsion arm 341 abuts against the first armrest 32, the second torsion arm 342 abuts against the third edge 333 of the movable bracket 33, the second edge 332 forms an angle of 90 ° with the front leg tube 2, and the fixed shaft 338 abuts against the first armrest 32, so that the movable bracket 33 supports the first armrest 32.

When the first handrail 32 needs to be folded, after the movable support 33 is pulled outwards for a certain distance to make the angle between the second edge 332 and the front leg tube 2 greater than 90 °, the second torsion arm 342 releases the third edge 333, the first handrail 32 is pressed down and the pressure is transmitted to the movable support 33 through the first torsion arm 341 of the first spring 34, so that the movable support 33 slides around the central shaft two 337 and the first edge 331 along the surface of the front leg tube 2 until the first handrail 32 clings to the front leg tube 2, and simultaneously the first spring 34 rotates around the central shaft two 337 to make the second torsion arm 342 abut against the first handrail 32, thereby realizing the folding of the first handrail 32.

When the handcart needs to be returned to the use state, the first handle 32 is pulled upwards to drive the first spring 34 to rotate around the central shaft two 337, so that the second torsion arm 342 abuts against the third edge 333, the first torsion arm 341 abuts against the handle, the first handle 32 is pulled upwards continuously, the pulling force is transmitted to the movable support 33 through the first spring 34, and the first edge 331 slides along the surface of the front foot tube 2 until the second handle returns to the use state.

Second handrail structure 4 is including cup jointing movable rod 41 in back foot pipe 1, connecting the second handrail 42 at the movable rod 41 upside, movable rod 41 passes through screw and back foot pipe 1 fixed connection, establish spring mechanism 46 between movable rod 41 and the back foot pipe 1, spring mechanism 46 includes spring bracket 461 with back foot pipe 1 fixed connection, inject spring two 462 in spring bracket, spring two 462 is close to the one end of movable rod 41 and establishes marble 463, movable rod 41 establishes the shrinkage pool 45 that linear arrangement was gone up in a plurality of vertical direction in one side that is close to marble 463

Loosen the screw, the clearance increase of movable rod 41 and back foot pipe 1, marble 463 withdraws from shrinkage pool 45, compress spring two 462 when reciprocating movable rod 41, when the one end that movable rod 41 is close to spring two 462 is the plane, marble 463 is injectd in spring two 462, when spring two 462 is close to the one end of movable rod 41 is shrinkage pool 45, spring two 462 is to movable rod 41 one side extension drive marble 463 and move toward movable rod 41 one side thereby make marble 463 get into shrinkage pool 45 in, marble 463 is every to touch shrinkage pool 45 and is sent out the sound promptly, thereby can realize the regulation of arbitrary gear height, when the height adjustment of second handrail 42 is to the height that the user needs, the screw of wrench, it is fixed with movable rod 41 and back foot pipe 1, guarantee that movable rod 41 is injectd in required height position in marble 463 gets into shrinkage pool 45 simultaneously.

Claims

1. Handrail structure for handcart, characterized by include install in back foot pipe (1) side and with preceding foot pipe (2) articulated first handrail structure (3), install in back foot pipe (1) upside and can go up and down direction height-adjusting's second handrail structure (4), first handrail structure (3) include connecting piece (31) be connected with back foot pipe (1), with first handrail (32) of connecting piece (31) articulated, with first handrail (32) articulated and with preceding foot pipe (2) conflict movable support (33), with first spring (34) of movable support (33) articulated, connecting piece (31) are articulated with first handrail (32), connecting piece (31) are articulated with preceding foot pipe (2), first handrail (32) are connected with back board (5).

2. The armrest structure for hand carts according to claim 1, wherein the coupling member (31) is sleeved on the outside of the rear leg tube (1) and fixedly connected with the rear leg tube (1), the coupling member (31) is provided with a first central shaft (311) passing through the first armrest (32) and the front leg tube (2), the coupling member (31) is hinged with the first armrest (32) through the first central shaft (311), and the coupling member (31) is hinged with the front leg tube (2) through the first central shaft (311).

3. The armrest structure for hand push cart according to claim 1, wherein the first armrest (32) is hollow and has a first opening (321) facing the connecting member (31) and a second opening (322) facing the movable support (33), the first armrest (32) has a third central axis (323) at a side thereof for hinging the backboard (5), a first support portion (324) capable of supporting the backboard (5), and a second support portion (325) capable of supporting the backboard (5), and the first support portion (324) and the second support portion (325) are respectively disposed at two sides of the third central axis (323).

4. The armrest structure for hand carts according to claim 1, wherein the movable bracket (33) is triangular, the triangular movable bracket (33) has a first side (331), a second side (332), and a third side (333), a first corner (334), a second corner (335), and a third corner (336) are formed between the first side (331), the second side (332), and the third side (333), the first corner (334) has a central shaft two (337) having two ends passing through the first armrest (32), the first spring (34) is sleeved outside the central shaft two (337) and is limited in the first armrest (32), the second corner (335) has a fixing shaft (338), and the third side (333) has an arc shape.

5. The armrest structure for hand carts according to claim 1, wherein the second armrest structure (4) comprises a movable rod (41) sleeved in the rear foot tube (1) and a second armrest (42) connected to the upper side of the movable rod (41), the movable rod (41) is fixedly connected to the rear foot tube (1) through a screw, a spring mechanism (46) is arranged between the movable rod (41) and the rear foot tube (1), the spring mechanism (46) comprises a spring support (461) connected to the rear foot tube (1) and a second spring (462) defined in the spring support, a marble (463) is arranged at one end of the second spring (462) close to the movable rod (41), and a plurality of concave holes (45) linearly arranged in the vertical direction are arranged at one side of the movable rod (41) close to the marble (463).

6. The armrest structure for hand carts according to claim 1, characterised in that the first spring (34) is provided by a torsion spring having a first torsion arm (341) and a second torsion arm (342).