Handcart with shock absorption

Abstract

A handcart with shock absorption, comprising a cart underframe (1), wherein a cart body (101) is fixedly mounted at the internal bottom end of the cart underframe (1); upper fixing bases (103) are fixed on the left side and right side of the inner bottom of the cart underframe (1); a first cavity (104) is formed inside each upper fixing base (103); a bearing (1041) is provided inside each first cavity (104); a fixing shaft (105) is provided on the inner side of each bearing (1041); an anti-detachment block (1051) is mounted at the top of each fixing shaft (105); a first fixing screw (1052) is provided at the top of each anti-detachment block (1051); a wheel fixing bracket (106) is fixedly mounted at the bottom of each fixing shaft (105); a rolling wheel (107) is movably provided inside each wheel fixing bracket (106) by means of a pin shaft; and a shock-absorption mechanism (2) is provided between each wheel fixing bracket (106) and upper fixing base (103).

Description

A trolley with shock absorption Technical Field

[0001] The present invention relates to the technical field of carts, in particular to a cart with shock absorption function. Background Art

[0002] A handcart is a transport vehicle that can be pushed or pulled by humans, and it is the ancestor of all vehicles. Although handcart material handling technology continues to evolve, it remains an indispensable tool for transporting goods. Handcarts are widely used in production and daily life because they are inexpensive, easy to maintain, easy to operate, and lightweight. They can be used in places where motor vehicles are inconvenient, and are very convenient for transporting light items over short distances.

[0003] The bottom of the currently used trolley with shock absorption is mostly in direct contact with the rollers and does not have an effective shock absorption component. Therefore, when in use, the items in the trolley will be bumped and collided.

[0004] In particular, glass products make noises and break easily when they collide, which is not conducive to the transportation of items and reduces the practical effect of the cart.

[0005] In summary, the present invention solves the problems in the above-mentioned background technology by designing a trolley with shock absorption. Technical Solutions

[0006] The object of the present invention is to provide a trolley with shock absorption to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] The top of the fixing plate is fixedly mounted on the left side of the fixing plate, and the fixing plate is fixedly mounted on the left side of the fixing plate through a fixing piece.

[0009] The shock absorbing mechanism includes a lower fixing seat arranged on the top of the fixed wheel frame, a second cavity is opened inside the lower fixing seat, and a compression spring and a shock absorbing damper are respectively arranged inside the second cavity.

[0010] As a preferred solution of the present invention, the front and rear end surfaces of the inner side of the cart chassis are fixedly connected to the front and rear side surfaces of the carriage.

[0011] As a preferred solution of the present invention, there are multiple upper fixing seats, and the multiple upper fixing seats are arranged in left-right symmetry with respect to the inner central axis of the cart chassis, and their vertical cross-section is L-shaped.

[0012] As a preferred solution of the present invention, the top end of the fixed shaft movably passes through the top inner wall of the No. 1 cavity and extends to the inner bottom end of the mounting hole, and the bottom end of the No. 1 fixing screw sequentially passes through the top surface of the anti-slip block and the top surface of the fixed shaft, and its outer surface is threadedly connected to the inner wall of the fixed shaft.

[0013] As a preferred solution of the present invention, the outer surface of the roller is provided with an anti-slip pattern.

[0014] As a preferred solution of the present invention, the lower fixing seat is wrapped around the outer surface of the upper fixing seat, and the inner wall of the top end thereof is in sliding contact with the outer surface of the upper fixing seat.

[0015] As a preferred solution of the present invention, the compression spring is sleeved on the outer surface of the fixed shaft, the bottom surface of the shock absorber and the compression spring is fixedly connected to the top surface of the fixed wheel frame, and the top surface of the compression spring and the upper surface of the compression spring are in movable contact with the bottom surface of the upper fixed seat.

[0016] As a preferred solution of the present invention, the lower fixing seat is fixedly connected to the top surface of the fixed wheel frame by a No. 2 fixing screw. Beneficial effects

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In the present invention, a trolley with shock absorption is provided, and the structural design of the shock absorption mechanism is utilized to realize the sliding between the lower fixed seat and the upper fixed seat and the elastic support of the upper fixed seat by the compression spring, thereby achieving the purpose of vibration buffering for the trolley, effectively reducing the amplitude of the bumps when the trolley moves, facilitating the subsequent transportation operation of the items, and improving the practical effect of the trolley. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG1 is a schematic diagram of the overall structure of the present invention;

[0020] FIG2 is a front structural schematic diagram of the trolley of the present invention;

[0021] FIG3 is a schematic diagram of a partial cross-sectional structure of the trolley of the present invention.

[0022] In the figure: 1. Cart chassis; 101. Carriage; 102. Pull rod; 103. Upper fixed seat; 1031. Mounting hole; 1032. Mounting cover; 104. Cavity No. 1; 1041. Bearing; 105. Fixed shaft; 1051. Anti-slip block; 1052. Fixing screw No. 1; 106. Fixed wheel frame; 107. Roller; 2. Shock absorption mechanism; 201. Lower fixed seat; 202. Cavity No. 2; 203. Compression spring; 204. Shock absorber. Modes for Carrying Out the Invention

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0025] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention pertains. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0027] For example, please refer to Figures 1-3. The present invention provides a technical solution:

[0028] A hand trolley with shock absorption comprises a trolley chassis 1, wherein a carriage 101 is fixedly installed at the inner bottom end of the trolley chassis 1, a pull rod 102 is fixedly installed at the left top end of the trolley chassis 1 through a fixing piece, an upper fixing seat 103 is fixedly provided on the left and right sides of the inner bottom of the trolley chassis 1, a mounting hole 1031 is provided on the top surface of the upper fixing seat 103, a mounting cover 1032 is plugged into the inner top end of the mounting hole 1031, a No. 1 cavity 104 is provided inside the upper fixing seat 103, a bearing 1041 is provided inside the No. 1 cavity 104, a fixed shaft 105 is provided inside the bearing 1041, an anti-slip block 1051 is installed on the top of the fixed shaft 105, a No. 1 fixing screw 1052 is provided on the top of the anti-slip block 1051, a fixed wheel frame 106 is fixedly installed on the bottom of the fixed shaft 105, and a roller 107 is movably provided inside the fixed wheel frame 106 through a pin shaft;

[0029] Specifically, the front and rear end surfaces of the inner side of the cart chassis 1 are fixedly connected to the front and rear side surfaces of the carriage 101;

[0030] In this embodiment, the fixed arrangement between the cart chassis 1 and the carriage 101 can ensure a stable state between the carriage 101 and the cart chassis 1, which is convenient for subsequent loading of items.

[0031] Specifically, there are multiple upper fixing seats 103, and the multiple upper fixing seats 103 are symmetrically arranged about the inner central axis of the cart chassis 1, and the vertical cross-section thereof is an L-shaped structure;

[0032] In this embodiment, the upper fixing seat 103 is mainly used to connect with the cart chassis 1 to facilitate the subsequent installation of the roller 107 and the fixed shaft 105.

[0033] Specifically, the top end of the fixed shaft 105 movably penetrates the top inner wall of the No. 1 cavity 104 and extends to the inner bottom end of the mounting hole 1031. The bottom end of the No. 1 fixing screw 1052 sequentially penetrates the top surface of the anti-slip block 1051 and the top surface of the fixed shaft 105, and the outer surface thereof is threadedly connected to the inner wall of the fixed shaft 105.

[0034] In this embodiment, the sliding fit between the fixed shaft 105 and the bearing 1041 is mainly to facilitate the up and down movement of the fixed shaft 105, and the setting of the anti-slip block 1051 and the No. 1 fixing screw 1052 is mainly used to limit the displacement of the fixed shaft 105 to prevent the fixed shaft 105 from detaching from the mounting hole 1031.

[0035] Preferably, the outer surface of the roller 107 is provided with an anti-slip pattern.

[0036] In this embodiment, referring to Figures 1 and 3, a shock absorbing mechanism 2 is provided between the fixed wheel frame 106 and the upper fixed seat 103. The shock absorbing mechanism 2 includes a lower fixed seat 201 provided on top of the fixed wheel frame 106. A second cavity 202 is defined within the lower fixed seat 201. A compression spring 203 and a shock absorbing damper 204 are provided within the second cavity 202.

[0037] Specifically, the lower fixing seat 201 is wrapped around the outer surface of the upper fixing seat 103, and the inner wall of the top end thereof is in sliding contact with the outer surface of the upper fixing seat 103. The compression spring 203 is sleeved on the outer surface of the fixed shaft 105. The bottom surface of the shock absorber 204 and the compression spring 203 is fixedly connected to the top surface of the fixed wheel frame 106, and the top surface of the shock absorber 204 and the compression spring 203 is in movable contact with the bottom surface of the upper fixing seat 103. The lower fixing seat 201 is fixedly connected to the top surface of the fixed wheel frame 106 by a No. 2 fixing screw.

[0038] In this embodiment, the compression spring 203 is mainly used to elastically support the upper fixed seat 103, so as to weaken the vibration force generated by the cart, and the shock absorber 204 is mainly used to suppress the repeated rebound of the compression spring 203, thereby improving the shock absorption effect of the compression spring 203 and meeting the needs of users.

[0039] The working process of the present invention is as follows: when using a trolley with shock absorption, first, the trolley is moved to the desired position by the pull rod 102 and the roller 107, and then the items are placed inside the carriage 101. Finally, under the condition of ensuring that the No. 1 fixing screw 1052 is in close contact with the anti-slip block 1051 and the fixed shaft 105, the items can be transported. In the process of transporting the items, when the carriage 101 generates a vibration force, under the action of the vibration force, the trolley chassis 1 drives the upper fixing seat 103 to move downward along the inner wall of the No. 2 cavity 202 and squeezes the compression spring 203 and the shock absorbing damper 204. The compression spring 203 will generate an elastic reaction force due to the squeezing, and the elastic reaction force can effectively weaken the vibration force. At the same time, under the action of the shock absorbing damper 204, the shock absorbing effect of the compression spring 203 is improved, thereby improving the item transportation effect of the trolley.

[0040] While 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 variations may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A trolley with shock absorption, comprising a trolley chassis (1), characterized in that: A carriage (101) is fixedly installed at the inner bottom end of the cart bottom frame (1), a pull rod (102) is fixedly installed at the left top end of the cart bottom frame (1) via a fixing piece, an upper fixing seat (103) is fixedly installed on the left and right sides of the inner bottom of the cart bottom frame (1), a mounting hole (1031) is provided on the top surface of the upper fixing seat (103), a mounting cover (1032) is inserted into the inner top end of the mounting hole (1031), and a first cavity (104) is provided inside the upper fixing seat (103), and the first cavity (104) A bearing (1041) is arranged inside the bearing (1041), a fixed shaft (105) is arranged inside the bearing (1041), an anti-slip block (1051) is installed on the top of the fixed shaft (105), a No. 1 fixing screw (1052) is arranged on the top of the anti-slip block (1051), a fixed wheel frame (106) is fixedly installed on the bottom of the fixed shaft (105), a roller (107) is movably arranged inside the fixed wheel frame (106) via a pin shaft, and a shock absorbing mechanism (2) is arranged between the fixed wheel frame (106) and the upper fixed seat (103); The shock absorbing mechanism (2) comprises a lower fixing seat (201) arranged on the top of the fixing wheel frame (106), a second cavity (202) is provided inside the lower fixing seat (201), and a compression spring (203) and a shock absorbing damper (204) are respectively arranged inside the second cavity (202).

2. A trolley with shock absorption according to claim 1, characterized in that: The front and rear end surfaces of the inner side of the cart chassis (1) are fixedly connected to the front and rear side surfaces of the carriage (101).

3. A trolley with shock absorption according to claim 1, characterized in that: There are a plurality of upper fixing seats (103), and the plurality of upper fixing seats (103) are arranged in a left-right symmetrical manner with respect to the inner central axis of the cart chassis (1), and their vertical cross-sections are in an L-shaped structure.

4. A trolley with shock absorption according to claim 1, characterized in that: The top end of the fixed shaft (105) movably penetrates the top inner wall of the No. 1 cavity (104) and extends to the inner bottom end of the mounting hole (1031); the bottom end of the No. 1 fixing screw (1052) sequentially penetrates the top surface of the anti-slip block (1051) and the top surface of the fixed shaft (105), and its outer surface is threadedly connected to the inner wall of the fixed shaft (105).

5. The trolley with shock absorption according to claim 1, characterized in that: The outer surface of the roller (107) is provided with an anti-slip pattern.

6. The trolley with shock absorption according to claim 1, characterized in that: The lower fixing seat (201) is wrapped around the outer surface of the upper fixing seat (103), and the inner wall at the top end thereof is in sliding contact with the outer surface of the upper fixing seat (103).

7. The trolley with shock absorption according to claim 1, characterized in that: The compression spring (203) is sleeved on the outer surface of the fixed shaft (105); the bottom surfaces of the vibration damper (204) and the compression spring (203) are fixedly connected to the top surface of the fixed wheel frame (106); and the top surfaces of the compression spring (203) and the compression spring (203) are in active contact with the bottom surface of the upper fixed seat (103).

8. The trolley with shock absorption according to claim 1, characterized in that: The lower fixing seat (201) is fixedly connected to the top surface of the fixed wheel frame (106) via a No. 2 fixing screw.

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