Auxiliary braking device of trailer

Abstract

The utility model discloses an auxiliary braking device of a trailer, which comprises a support formed by assembling a deflection rod and a mounting frame, a positioning shaft is movably mounted on the support, a tire is rotatably mounted at the central position of the positioning shaft, supporting discs are respectively and fixedly sleeved on two sides of the tire of the positioning shaft, and a pair of swing arms is rotatably mounted on one side of each supporting disc. A trapezoidal block is fixedly installed on the side wall of the installation frame, the end of the swing arm abuts against the trapezoidal block, and after the tire makes contact with the ground, the swing arm is driven by the positioning shaft to abut against the trapezoidal block till the swing arm rotates till the side wall of the swing arm makes contact with the tire so that speed reduction can be achieved. The supporting discs, the swing arms, the trapezoidal blocks and the tension springs which are arranged on the tires and the two sides of the tires are matched to assist in braking the trailer, the pair of swing arms symmetrically abut against the tires, it is ensured that braking force is evenly applied to the two sides of the tires, the trailer is kept balanced in the braking process, and the swing arms directly abut against the tires to generate friction force; and the trailer can be quickly and effectively braked.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of trailer accessories, in particular to an auxiliary braking device of trailer. BACKGROUND

[0002] As an important cargo carrying tool, the driving safety of trailer is very important. At present, the braking system of traditional trailer mainly depends on conventional brake device, however, these braking means exposes many problems in practical application.

[0003] For example, the Chinese patent document with the application number CN202420198762.6 discloses an auxiliary braking device of trailer, which comprises a deflection rod, one end of the deflection rod is fixedly installed with a U-shaped mounting bracket, a lifting block is symmetrically and slidingly installed on the mounting bracket, a fixed block is installed on the lifting block through a connecting assembly, a rotating shaft is rotatably installed on the fixed block, a rubber tire is rotatably installed between the two rotating shafts, a moving hole is symmetrically formed on the mounting bracket, a top rod is slidingly installed in each of the two moving holes, a first spring rod is fixedly installed at one end of each of the two top rods, and the first spring rod is fixedly installed on the mounting bracket through a supporting block.

[0004] The above-mentioned auxiliary braking device has defects in uniform distribution of braking force. During braking, the braking force often cannot be uniformly applied to both sides of the trailer tire, and sufficient braking force cannot be quickly generated, so the braking effect is not ideal. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an auxiliary braking device of trailer to solve the problem of defects in uniform distribution of braking force of the auxiliary braking system of traditional trailer.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an auxiliary braking device of trailer, which comprises a support composed of a deflection rod and a mounting bracket, a positioning shaft is movably installed on the support, a tire is rotatably installed at the central position of the positioning shaft, a supporting disc is fixedly sleeved with the positioning shaft on both sides of the tire, a pair of swing arms are rotatably installed on one side of the supporting disc, a tension spring is connected between the pair of swing arms, a trapezoidal block is fixedly installed on the side wall of the mounting bracket, the end of the swing arm is in contact with the trapezoidal block, after the tire contacts with the ground, the swing arm and the trapezoidal block are in contact through the positioning shaft, until the swing arm rotates to the side wall thereof contacting with the tire to realize speed reduction.

[0007] Preferably, the side wall of the mounting bracket is provided with a sliding hole for sliding of the positioning shaft, a fixed rod is fixedly installed on the outer wall of each side of the mounting bracket, the positioning shaft is slidingly installed between the pair of fixed rods, and a spring is sleeved on the fixed rod.

[0008] Preferably, the end of the swing arm is rotatably mounted with a roller.

[0009] Preferably, both sides of the tire are provided with a groove for accommodating the support disc.

[0010] Preferably, the side wall of the support disc is provided with a pair of through holes for accommodating the swing arm.

[0011] Preferably, the side wall of the support disc is fixedly mounted with a limiting plate, and the side wall of the swing arm is provided with a clamping groove for accommodating the limiting plate.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The utility model discloses a pair of swing arms symmetrically abut against the tire, ensures that the braking force is evenly applied to both sides of the tire, makes the trailer keep balance during braking, and the swing arm directly abuts against the tire to generate friction force, can quickly and effectively brake the trailer, compared with part traditional braking means, can significantly shorten the braking distance, greatly improves the braking response speed of the trailer during driving, thereby can more timely stop the trailer in an emergency, and powerfully guarantees the traffic safety. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the whole three-dimensional structure schematic diagram of the utility model;

[0015] Figure 2 It is the tire and support disc assembly three-dimensional structure schematic diagram of the utility model;

[0016] Figure 3 It is the whole three-dimensional structure schematic diagram of the support disc of the utility model;

[0017] Figure 4 It is the whole three-dimensional structure schematic diagram of the swing arm of the utility model.

[0018] In the drawing: 1, deflection lever, 2, mounting frame, 3, tire, 4, positioning shaft, 5, fixed rod, 6, spring, 7, support disc, 8, trapezoidal block, 9, swing arm, 10, tension spring, 11, roller, 12, limiting plate, 13, clamping groove. DETAILED DESCRIPTION

[0019] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0020] Please refer to Figures 1-4The utility model provides a kind of technical scheme: a kind of trailer auxiliary brake device, including support by deflection lever 1 and mounting frame 2 assembly, in the present application, deflection lever 1 needs to cooperate driving device (for prior art), deflection lever 1 will drive mounting frame 2 to move towards ground direction, support is movably installed with locating shaft 4, the side wall of mounting frame 2 is equipped with the sliding hole for the sliding of locating shaft 4, the two sides outer wall of mounting frame 2 is respectively fixedly installed with fixed rod 5, locating shaft 4 is slidably installed between a pair of fixed rod 5, spring 6 is sleeved on fixed rod 5, the advantage of such arrangement is, when tire 3 is contacted with ground, locating shaft 4 will be stressed on fixed rod 5 and slide and compress spring 6, locating shaft 4 is rotatably installed at the central position of tire 3, locating shaft 4 is located at the two sides of tire 3 and is respectively fixedly sleeved with support disc 7, the two sides of tire 3 are equipped with the recess for accommodating support disc 7, one side of support disc 7 is rotatably installed with a pair of swing arms 9, the side wall of support disc 7 is equipped with a pair of through holes for accommodating swing arm 9, the setting of through hole facilitates swing arm 9 and the inner wall of the recess of tire 3 to be contacted to achieve the purpose of deceleration, a pair of swing arms 9 are connected with tension spring 10, the advantage of such arrangement is, it is convenient for swing arm 9 to reset, the side wall of mounting frame 2 is fixedly installed with trapezoidal block 8, the end of swing arm 9 is contacted with trapezoidal block 8, the end of swing arm 9 is rotatably installed with roller 11, after tire 3 is contacted with ground, swing arm 9 is driven by locating shaft 4 and trapezoidal block 8 is contacted, until swing arm 9 is rotated to its side wall and tire 3 is contacted to realize deceleration, the side wall of support disc 7 is fixedly installed with limit plate 12, the side wall of swing arm 9 is equipped with clamping groove 13 for accommodating limit plate 12, after tire 3 is contacted with ground, locating shaft 4 is stressed on fixed rod 5 and moves, and drive the swing arm 9 in the support disc 7 to be close to trapezoidal block 8, after roller 11 is contacted with a pair of swing arms 9, swing arm 9 is stressed and expands outward to be contacted with tire 3, and frictional force is generated between tire 3, swing arm 9 can directly act on tire tire 3 to realize brake, can make brake force evenly distributed on the two sides of tire 3, so that the brake process of trailer is more stable, reduces the vehicle shaking or deviation phenomenon caused by uneven braking, improves the stability and controllability when braking, guarantees driving safety.The present application cooperates auxiliary brake trailer by being equipped with support disc 7, swing arm 9, trapezoidal block 8 and tension spring 10 on tire 3 and the two sides of tire 3, a pair of swing arms 9 are symmetrically contacted with tire 3, ensure that brake force is evenly applied on the two sides of tire, so that trailer keeps balance during braking, swing arm 9 is directly contacted with tire 3 and generates frictional force, can quickly and effectively brake trailer, compared with part of traditional braking means, can significantly shorten brake distance, greatly improve the brake response speed of trailer during driving, so that trailer can be stopped more timely in emergency, effectively guarantee driving safety.

[0021] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0022] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. An auxiliary braking arrangement for a trailer, characterised in that: The utility model provides a kind of speed reducer, including the support of the assembly of deflection lever (1) with mounting frame (2), the positioning shaft (4) is movably installed on the support, the tire (3) is rotatably installed at the central position of the positioning shaft (4), the positioning shaft (4) is fixedly sleeved with support disc (7) on both sides of the tire (3), one pair of swing arms (9) is rotatably installed on the side of support disc (7), a pair of pull spring (10) is connected between the swing arm (9), trapezoidal block (8) is fixedly installed on the side wall of mounting frame (2), the end of swing arm (9) is in contact with trapezoidal block (8), after tire (3) contacts with ground, swing arm (9) is driven by positioning shaft (4) and in contact with trapezoidal block (8), until swing arm (9) rotates to its side wall and tire (3) contact to realize deceleration.

2. An auxiliary braking arrangement for a trailer as claimed in claim 1, characterised in that: The side wall of mounting frame (2) is provided with sliding hole for the sliding of positioning shaft (4), and the outer wall of mounting frame (2) is fixedly installed with fixed rod (5) on both sides, and the positioning shaft (4) is slidably installed between a pair of fixed rods (5), and spring (6) is sleeved on the fixed rod (5).

3. An auxiliary braking arrangement for a trailer as claimed in claim 1, characterised in that: The end of swing arm (9) is rotatably installed with roller (11).

4. An auxiliary braking arrangement for a trailer as claimed in claim 1, characterised in that: Both sides of tire (3) are provided with recess for accommodating support disc (7).

5. An auxiliary braking arrangement for a trailer as claimed in claim 1, characterised in that: The side wall of support disc (7) is provided with a pair of through holes for accommodating swing arm (9).

6. An auxiliary braking arrangement for a trailer as claimed in claim 1, characterised in that: The side wall of support disc (7) is fixedly installed with limiting plate (12), and the side wall of swing arm (9) is provided with clamping groove (13) for accommodating limiting plate (12).

Images