Trailer wheel hub anti-pullout connection device

Abstract

The utility model relates to trailer wheel hub technical field, concretely is a trailer wheel hub anti -drop connecting device, including hydraulic jack, the utility model uses, first will connect seat to be in trailer wheel hub center, make three fixed links align wheel hub center hole position, three expansion clamps go into wheel hub center hole inside, this time press the rod of hydraulic jack, the output end of hydraulic jack pushes connect seat and moves down, and fixed link drops along with it, at this moment, the pull ring fixed on the thimble draws fixed ring through chain, drives connecting shaft and support to move, makes expansion clamp rotate around convex axle, gradually expands to the outside, firmly holds the edge of wheel hub, along with the continuous press of hydraulic jack, the clamping force of expansion clamp is increasing, until the wheel hub is connected stably, when disassembling, reverse operation hydraulic jack, make its output end retract, chain slack, expansion clamp rotates inwards under the action of gravity, loosens wheel hub, can dismantle easily.

Description

Technical Field

[0001] This utility model relates to the field of trailer wheel hub technology, and in particular to a trailer wheel hub anti-detachment connection device. Background Technology

[0002] In the trailer transportation industry, the reliability of wheel hub connections is directly related to driving safety. Traditional trailer wheel hub connections mostly use bolts for fixing. However, during long-term driving, vehicles are subjected to vibrations and impacts from complex road conditions, as well as stress changes from frequent braking and acceleration. This can easily lead to bolts loosening or even breaking, resulting in wheel hub detachment accidents, which seriously threaten traffic safety and cause property damage.

[0003] Traditional bolted connections are time-consuming and labor-intensive to install and disassemble, resulting in low maintenance efficiency. Therefore, designing a trailer wheel hub connection device that can adapt to complex working conditions, provide reliable connections, and is easy to operate has become an urgent industry need. This device effectively solves the above problems through an innovative anti-detachment structure and hydraulic drive mechanism, meeting the actual needs of efficient and safe trailer operation.

[0004] Therefore, we propose a trailer wheel hub anti-detachment connection device. Utility Model Content

[0005] The purpose of this utility model is to solve the shortcomings of the existing technology, such as time-consuming and labor-intensive installation and disassembly, and low maintenance efficiency, and to propose a trailer wheel hub anti-detachment connection device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A trailer wheel hub anti-detachment connection device includes a hydraulic jack, a pressure rod rotatably connected to one side of the hydraulic jack, a collar fixedly installed on the outside of the hydraulic jack, a connecting seat movably installed at the bottom end of the hydraulic jack, the connecting seat being fixedly connected to the output end of the hydraulic jack, and three fixing rods fixedly installed around the connecting seat, with anti-detachment components installed inside the fixing rods.

[0008] As a further improvement of this utility model: the anti-detachment component includes grooves, three grooves are formed on the upper surface of the three fixing rods, and three expansion clips are movably installed above the three grooves, the three expansion clips being L-shaped.

[0009] As a further improvement of this utility model: three convex shafts are rotatably connected inside the three grooves, and the three convex shafts are rotatably connected to three expansion clamps respectively.

[0010] As a further embodiment of this utility model: three brackets are rotatably connected to the ends of the three expansion clamps away from the connecting seat, and three connecting shafts are rotatably connected inside the three brackets.

[0011] As a further improvement of this utility model: three fixing rings are fixedly installed on the upper surface of the three connecting shafts, and three chains are connected inside the three fixing rings.

[0012] As a further improvement of this utility model: three pull rings are fixedly installed on the outside of the collar, and the three pull rings are respectively connected to the top of three chains.

[0013] Compared with the prior art, the present invention provides a trailer wheel hub anti-detachment connection device, which has the following beneficial effects:

[0014] This invention features a "groove-expansion clamp-chain" linkage structure for its anti-detachment component. Three expansion clamps are hinged to the groove of the fixing rod via a convex shaft. When the hydraulic jack pushes the connecting seat downwards, the expansion clamps rotate around the convex shaft under the tension of the chain, firmly clamping the wheel hub. This design changes the traditional single-bolt fixing method, utilizing the mechanical lever principle to achieve multi-angle, multi-directional tightening. It effectively resists vibrations, bumps, and lateral forces during vehicle operation, greatly reducing the risk of wheel hub detachment and improving driving safety. Even in extreme road conditions, the expansion clamps can adaptively adjust the clamping force to ensure connection reliability. This invention uses a hydraulic jack as the core power source, allowing for wheel hub tightening and disassembly operations simply by pressing the lever. Compared to traditional manual wrenches or power tools, hydraulic drive is labor-saving and efficient, allowing operators to complete high-intensity connection work without expending excessive physical strength. Meanwhile, the hydraulic system can precisely control the pressure, preventing damage to the hub or connecting parts due to excessive force, and also preventing loosening caused by insufficient tightening force. This improves work efficiency while ensuring operational safety and standardization. All parts not described herein are the same as or can be implemented using existing technology. This invention has a simple structure and is easy to operate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a trailer wheel hub anti-detachment connection device proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the reverse structure of a trailer wheel hub anti-detachment connection device proposed in this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the anti-detachment component of the trailer wheel hub anti-detachment connection device proposed in this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of a hydraulic jack for preventing trailer wheel hub detachment proposed in this utility model.

[0019] In the diagram: 1. Hydraulic jack; 2. Pressure rod; 3. Collar; 4. Connecting seat; 5. Fixing rod; 6. Anti-detachment component; 7. Groove; 8. Expansion clamp; 9. Protruding shaft; 10. Bracket; 11. Connecting shaft; 12. Fixing ring; 13. Chain; 14. Pull ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Example: A trailer wheel hub anti-detachment connection device, such as Figures 1-4 As shown, it includes a hydraulic jack 1, a pressure rod 2 rotatably connected to one side of the hydraulic jack 1, a collar 3 fixedly installed on the outside of the hydraulic jack 1, a connecting seat 4 movably installed at the bottom end of the hydraulic jack 1, the connecting seat 4 being fixedly connected to the output end of the hydraulic jack 1, and three fixing rods 5 fixedly installed around the connecting seat 4, with an anti-detachment component 6 installed inside the fixing rods 5.

[0023] like Figures 1-4As shown, the anti-detachment component 6 includes grooves 7. Three grooves 7 are formed on the upper surfaces of the three fixing rods 5. Three expansion clips 8 are movably installed above the three grooves 7. The three expansion clips 8 are L-shaped. Three convex shafts 9 are rotatably connected inside the three grooves 7. The three convex shafts 9 are rotatably connected to the three expansion clips 8 respectively. Three brackets 10 are rotatably connected to the ends of the three expansion clips 8 away from the connecting seat 4. Three connecting shafts 11 are rotatably connected inside the three brackets 10. Three fixing rings 12 are fixedly installed on the upper surfaces of the three connecting shafts 11. Three chains 13 are connected inside the three fixing rings 12. Three pull rings 14 are fixedly installed on the outside of the collar 3. The three pull rings 14 are respectively connected to the top ends of the three chains 13. In use, first connect the connecting seat 4... Position the three fixed rods 5 at the center of the wheel hub, aligning them with the center hole of the hub. Insert the three expansion clamps 8 into the center hole of the hub. Then, press down the pressure rod 2 of the hydraulic jack 1. The output end of the hydraulic jack 1 pushes the connecting seat 4 downwards, causing the fixed rods 5 to descend. At this time, the pull ring 14 fixed to the collar 3 pulls the fixed ring 12 via the chain 13, causing the connecting shaft 11 and the bracket 10 to move. This causes the expansion clamps 8 to rotate around the convex shaft 9, gradually expanding outwards and firmly locking the edge of the center hole of the hub. As the hydraulic jack 1 continues to press down, the clamping force of the expansion clamps 8 continuously increases until the hub is securely connected. For disassembly, reverse the operation of the hydraulic jack 1 to retract its output end, loosening the chain 13. The expansion clamps 8 rotate inwards under the weight of the hub itself, releasing the hub and allowing for easy disassembly.

[0024] Working principle: When in use, first place the connecting seat 4 in the center of the trailer wheel hub, align the three fixing rods 5 with the center hole of the hub, and insert the three expansion clamps 8 into the center hole of the hub. At this time, press down the pressure rod 2 of the hydraulic jack 1. The output end of the hydraulic jack 1 pushes the connecting seat 4 downward, and the fixing rods 5 descend accordingly. At this time, the pull ring 14 fixed on the collar 3 pulls the fixing ring 12 through the chain 13, which drives the connecting shaft 11 and the bracket 10 to move, so that the expansion clamps 8 rotate around the convex shaft 9 and gradually expand outward, firmly locking the edge of the center hole of the hub. As the hydraulic jack 1 continues to press down, the clamping force of the expansion clamps 8 continues to increase until the hub is securely connected. When disassembling, reverse the operation of the hydraulic jack 1 to retract its output end, loosen the chain 13, and the expansion clamps 8 rotate inward under the action of the hub's own weight, releasing the hub and making it easy to disassemble.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A trailer wheel hub anti-detachment connection device, comprising a hydraulic jack (1), characterized in that... The hydraulic jack (1) is rotatably connected to a pressure rod (2) on one side. A collar (3) is fixedly installed on the outside of the hydraulic jack (1). A connecting seat (4) is movably installed at the bottom of the hydraulic jack (1). The connecting seat (4) is fixedly connected to the output end of the hydraulic jack (1). Three fixing rods (5) are fixedly installed around the connecting seat (4). An anti-detachment component (6) is installed inside the fixing rods (5).

2. The trailer wheel hub anti-detachment connection device according to claim 1, characterized in that... The anti-detachment component (6) includes a groove (7). Three grooves (7) are provided on the upper surface of the three fixing rods (5). Three expansion clips (8) are movably installed above the three grooves (7). The three expansion clips (8) are L-shaped.

3. The trailer wheel hub anti-detachment connection device according to claim 2, characterized in that... The three grooves (7) are rotatably connected to three convex shafts (9), and the three convex shafts (9) are rotatably connected to three expansion clamps (8).

4. The trailer wheel hub anti-detachment connection device according to claim 3, characterized in that... The three expansion clips (8) are rotatably connected to three brackets (10) at the ends away from the connecting seat (4), and three connecting shafts (11) are rotatably connected inside the three brackets (10).

5. A trailer wheel hub anti-detachment connection device according to claim 4, characterized in that... Three fixing rings (12) are fixedly installed on the upper surface of the three connecting shafts (11), and three chains (13) are connected inside the three fixing rings (12).

6. A trailer wheel hub anti-detachment connection device according to claim 5, characterized in that... The collar (3) is fixedly installed with three pull rings (14), and the three pull rings (14) are respectively connected to the top of the three chains (13).

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