Detachable carrying trailer tailstock

Abstract

The utility model provides a detachable carrying trailer tailstock. The detachable carrying trailer tailstock comprises a bottom frame, a traction assembly installed on the front side of the bottom frame and two wheel assemblies connected to the left side and the right side of the bottom frame. The device further comprises a guardrail assembly. The underframe comprises a frame and a first square tube fixed at the bottom of the frame; a bottom plate is mounted on the frame; a plurality of first U-shaped connecting pieces are respectively arranged at the peripheral edge positions of the top of the frame; the two first square pipes are transversely arranged and distributed front and back. The guardrail assembly comprises four guardrails, and first inserting feet are arranged at the positions, corresponding to the first U-shaped connecting pieces, of the bottoms of the guardrails correspondingly. The first pin is connected with the first U-shaped connecting piece through a first pin shaft, and a first cotter pin is inserted into the first pin shaft for locking; a second U-shaped connecting piece and a second inserting pin are arranged between every two adjacent guardrails; the second U-shaped connecting piece is connected with the second pin through a second pin shaft, and a second cotter pin is inserted into the second pin shaft for locking; a second square tube inserted into the first square tube is arranged on the wheel assembly; the first square tube and the second square tube are locked through a first screw.

Description

Technical Field

[0001] This utility model relates to the field of trailer technology, and in particular to a detachable transport trailer tail rack. Background Technology

[0002] Transport trailers are used to carry and transport goods. Currently, the tail rack of trailers usually only allows the rear guardrail to be opened, then the goods are loaded in, and then the guardrail is closed for transport. This method makes loading and unloading goods inconvenient, and the guardrail and wheel components require maintenance. Non-removable or difficult-to-disassemble structures are not easy to maintain, so improvements are needed. Utility Model Content

[0003] The purpose of this invention is to provide a detachable transport trailer tail rack to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A detachable transport trailer tail frame includes a base frame, a towing assembly mounted on the front of the base frame, and two sets of wheel assemblies connected to the left and right sides of the base frame; it also includes guardrail assemblies; the base frame includes a frame and a first square tube fixed to the bottom of the frame; a base plate is mounted on the frame; several first U-shaped connectors are respectively provided at the top four edges of the frame; the first square tubes are arranged horizontally and two are distributed front and back; the guardrail assembly includes four guardrails, divided into left guardrail, right guardrail, front guardrail and rear guardrail; the bottom of each guardrail is provided with a first pin corresponding to the position of the first U-shaped connector; the first pin is connected to the first U-shaped connector by a first pin and locked by a first cotter pin inserted into the first pin; a second U-shaped connector and a second pin are provided between two adjacent guardrails; the second U-shaped connector and the second pin are connected by a second pin and locked by a second cotter pin inserted into the second pin; the wheel assembly is provided with a second square tube inserted into the first square tube; the first square tube and the second square tube are locked together by a first screw.

[0006] In a further description of this utility model, the second U-shaped connector is formed at the front and rear ends of the left and right guardrails respectively and is located on the opposite side of the left and right guardrails; the second pin is formed on the left and right sides of the front and rear guardrails respectively.

[0007] Further description of this utility model: several hooks are provided on the left and right sides of the top of the frame, respectively, arranged symmetrically.

[0008] Further description of the present invention: the wheel assembly further includes an L-shaped mounting bracket, a wheel connecting bracket, and a wheel; two second square tubes are respectively installed at the front and rear ends of the L-shaped mounting bracket and secured by second screws; the ends of the second square tubes are limited by the vertical surface of the L-shaped mounting bracket and supported by the horizontal surface; the wheel connecting bracket is fixed at the middle position of the bottom of the L-shaped mounting bracket and secured by a third screw; the wheel is installed on the wheel connecting bracket.

[0009] Further description of this utility model: the traction assembly includes a front connecting piece, a connecting head, and a tail frame connecting rod connected sequentially from front to back; a U-shaped seat with its opening facing rearward is fixed to the front side of the bottom of the frame; the rear end of the U-shaped seat contacts the first square tube on the front side; an axle seat is installed at the bottom of the front end of the U-shaped seat; the tail frame connecting rod passes through the axle seat; springs are respectively installed on the front and rear sides of the tail frame connecting rod corresponding to the axle seat; and a limiting head is provided at the rear end of the tail frame connecting rod.

[0010] In a further description of this utility model, a third third tube, which is distributed horizontally and arranged vertically, is fixed to the rear side of the first square tube at the bottom of the frame.

[0011] The beneficial effects of this utility model are as follows:

[0012] This design allows the guardrail to be separated from the frame by pulling out the first cotter pin on the first pin shaft and removing the first pin shaft. Pulling out the second cotter pin on the second pin shaft and removing the second pin shaft allows the separation of two adjacent guardrails. In actual use, one or more guardrails can be disassembled individually according to the actual situation, which facilitates the loading and unloading of goods and the maintenance of the guardrails. Loosening the first screw allows the wheel assembly to be removed for maintenance. The structure of this design is easy to disassemble and assemble, which facilitates the loading and unloading of goods and the maintenance of components. Attached Figure Description

[0013] Figure 1 This is an overall structural diagram of the present invention;

[0014] Figure 2 This is the book Figure 1 A magnified view of part A in the image;

[0015] Figure 3 This is a structural diagram of the base frame of this utility model;

[0016] Figure 4 This is a structural diagram of the base frame of this utility model viewed from below;

[0017] Figure 5 This is a structural diagram showing the connection between the wheel assembly and the first square tube of this utility model;

[0018] Figure 6This is a structural diagram showing the connection between the traction component and the axle seat of this utility model. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] like Figure 1-6 As shown, the detachable transport trailer tail frame includes a base frame 1, a towing assembly 2 installed on the front side of the base frame 1, and two sets of wheel assemblies 3 connected to the left and right sides of the base frame 1; it also includes a guardrail assembly 4; the base frame 1 includes a frame 11 and a first square tube 12 fixed to the bottom of the frame 11; a base plate 111 is installed on the frame 11; several first U-shaped connectors 112 are respectively provided at the top four edges of the frame 11; the first square tubes 12 are arranged horizontally and two are distributed front and back; the guardrail assembly 4 includes four guardrails, divided into a left guardrail 41, a right guardrail 42, a front guardrail 43 and a rear guardrail 44; the bottom of the guardrails is provided with first pins 401 corresponding to the positions of the first U-shaped connectors 112; the first pins 401 and the first U-shaped connectors 112 are connected by a first pin 1121 and locked by inserting a first cotter pin into the first pin 1121; adjacent guardrails A second U-shaped connector 402 and a second pin 403 are provided between the railings; the second U-shaped connector 402 and the second pin 403 are connected by a second pin 404 and locked by a second cotter pin inserted into the second pin 404; the wheel assembly 3 is provided with a second square tube 31 inserted into the first square tube 12; the first square tube 12 and the second square tube 31 are locked by a first screw 121. In this design, by pulling out the first cotter pin on the first pin 1121 and taking out the first pin 1121, the railing can be separated from the frame 11. By pulling out the second cotter pin on the second pin 404 and taking out the second pin 404, two adjacent railings can be separated. In actual use, one or more railings can be removed individually according to the actual situation to facilitate the loading and unloading of goods and the maintenance of the railings. Loosening the first screw 121 allows the wheel assembly 3 to be taken out for maintenance.

[0021] The second U-shaped connector 402 is formed at the front and rear ends of the left guardrail 41 and the right guardrail 42 respectively and is located on the opposite side of the left guardrail 41 and the right guardrail 42; the second pin 403 is formed on the left and right sides of the front guardrail 43 and the rear guardrail 44 respectively.

[0022] The top left and right sides of the frame 11 are provided with several hooks 113 arranged symmetrically. The hooks 113 are used to install ropes to bind goods.

[0023] The wheel assembly 3 also includes an L-shaped mounting bracket 32, a wheel 34 connecting bracket 33, and a wheel 34; two second square tubes 31 are respectively installed at the front and rear ends of the L-shaped mounting bracket 32 ​​and locked with second screws 301; the ends of the second square tubes 31 are limited by the vertical surface of the L-shaped mounting bracket 32 ​​and supported by the horizontal surface; the wheel 34 connecting bracket 33 is fixed at the middle position of the bottom of the L-shaped mounting bracket 32 ​​and locked with third screws 302; the wheel 34 is installed on the wheel 34 connecting bracket 33. This structure is simple, stable, and easy to assemble and disassemble.

[0024] The traction assembly 2 includes a front connector 21, a connector 22, and a tail frame connecting rod 23 connected sequentially from front to back. A U-shaped seat 13 with its opening facing rearward is fixed to the front side of the bottom of the frame 11. The rear end of the U-shaped seat 13 contacts the first square tube 12 on the front side. An axle seat 131 is installed at the bottom of the front end of the U-shaped seat 13. The tail frame connecting rod 23 passes through the axle seat 131. Springs 24 are installed on the tail frame connecting rod 23 on the front and rear sides corresponding to the axle seat 131. A limiting head 231 is provided at the rear end of the tail frame connecting rod 23. The front connector 21 is used to connect the front of the transport trailer. The two first springs 24 on the tail frame connecting rod 23 provide a buffering effect. The U-shaped seat 13 is fixedly connected to the frame 11 and the first square tube on the front side by welding, which serves as a reinforcement function.

[0025] At the bottom of the frame 11, corresponding to the rear side of the first square tube 12, there are two third third tubes 14 that are distributed horizontally and arranged vertically. The two third third tubes 14 are reinforced by welding the base frame 1 to the rear first square tube, thereby improving the stability of the structure.

[0026] The above description does not limit the technical scope of this invention. Any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this invention shall still fall within the scope of the technical solution of this invention.

Claims

1. A detachable transport trailer tail frame, comprising a base frame, a towing assembly mounted on the front side of the base frame, and two sets of wheel assemblies connected to the left and right sides of the base frame; characterized in that: It also includes a guardrail assembly; the base frame includes a frame and a first square tube fixed to the bottom of the frame; a base plate is installed on the frame; several first U-shaped connectors are respectively provided at the top four edges of the frame; the first square tubes are arranged horizontally and two are distributed front and back; the guardrail assembly includes four guardrails, divided into a left guardrail, a right guardrail, a front guardrail and a rear guardrail; the bottom of the guardrail is provided with a first pin corresponding to the position of the first U-shaped connector; the first pin and the first U-shaped connector are connected by a first pin and locked by inserting a first cotter pin into the first pin; a second U-shaped connector and a second pin are provided between two adjacent guardrails; the second U-shaped connector and the second pin are connected by a second pin and locked by inserting a second cotter pin into the second pin; the wheel assembly is provided with a second square tube inserted into the first square tube; the first square tube and the second square tube are locked together by a first screw.

2. The detachable transport trailer tail frame according to claim 1, characterized in that: The second U-shaped connector is formed at the front and rear ends of the left and right guardrails respectively and is located on the opposite side of the left and right guardrails; the second pin is formed on the left and right sides of the front and rear guardrails respectively.

3. The detachable transport trailer tail frame according to claim 1, characterized in that: The top of the frame has several hooks arranged symmetrically on the left and right sides.

4. The detachable transport trailer tail rack according to claim 1, characterized in that: The wheel assembly also includes an L-shaped mounting bracket, a wheel connecting bracket, and a wheel; two second square tubes are respectively installed at the front and rear ends of the L-shaped mounting bracket and secured with second screws; the ends of the second square tubes are limited by the vertical surface of the L-shaped mounting bracket and supported by the horizontal surface; the wheel connecting bracket is fixed at the middle position of the bottom of the L-shaped mounting bracket and secured with a third screw; the wheel is installed on the wheel connecting bracket.

5. The detachable transport trailer tail rack according to claim 1, characterized in that: The traction assembly includes a front connector, a connector head, and a tail frame connecting rod connected sequentially from front to back; a U-shaped seat with its opening facing rearward is fixed to the front side of the bottom of the frame; the rear end of the U-shaped seat contacts the first square tube on the front side; an axle seat is installed at the bottom of the front end of the U-shaped seat; the tail frame connecting rod passes through the axle seat; springs are installed on the front and rear sides of the tail frame connecting rod corresponding to the axle seat; and a limiting head is provided at the rear end of the tail frame connecting rod.

6. The detachable transport trailer tail rack according to claim 1, characterized in that: The bottom of the frame is fixed with a third tube that is distributed horizontally and arranged vertically on the rear side of the first square tube.

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