Steering gear bushing convenient to install

Abstract

The utility model discloses a steering gear bushing convenient to install, and relates to the technical field of steering gear bushings, the steering gear bushing convenient to install comprises a first bushing body and a second bushing body, connecting screws are arranged in hidden grooves, two shielding plates correspond to the two hidden grooves respectively, and arc-shaped sliding grooves are formed in the two ends of the first bushing body. A hook-shaped sliding block is arranged in the sliding groove in a sliding mode, a contraction groove communicated with the hidden groove is formed in the inner wall of the shielding plate, an elastic pressing piece is arranged in the contraction groove, and an inflation assembly used for injecting gas into the contraction groove is arranged on the outer wall of the shielding plate. Through the arrangement of the shielding plate, after the first sleeve body and the second sleeve body are fixedly combined through the connecting screw, the shielding plate slides on the outer wall of the first sleeve body, so that the shielding plate covers the hidden groove, the connecting screw can be effectively isolated from the external environment through the shielding plate, the connecting screw is prevented from being rusted, and the service life of the connecting screw is prolonged. The influence of the environment on the connecting screw is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of steering gear bushings, in particular to a steering gear bushing which is easy to install. Background Art

[0002] The steering gear bushing of automobiles is a key part in the steering gear positioning structure. The wear of the steering gear bushing will lead to poor positioning of the steering gear in the steering system, resulting in insufficient steering return when the vehicle is driving and reduced steering accuracy. Therefore, the steering gear bushing needs to be maintained or replaced regularly.

[0003] At present, most of the steering gear bushings on the market are integrated, which means that every time the bushing is installed or removed, the staff needs to use a hammer or other tools to operate by hammering, which is troublesome and laborious. For this reason, there is a split bushing in the prior art, which is formed by combining two sets of semi-annular sleeves, so that the bushing can be detached, thereby facilitating the disassembly and assembly of the bushing;

[0004] When the split bushing is actually assembled, the two sets of bushings are usually fixed and connected directly by screws. Although this ensures the stability of the bushing after assembly to a certain extent, based on actual conditions, the screws are easily affected by the environment and rust, which is not conducive to the later disassembly of the split bushing. In addition, the screws are easily affected by the use environment of the bushing and become loose due to long-term vibration, affecting the overall stability of the split bushing. Utility Model Content

[0005] In order to solve the above technical problems, a steering gear bushing that is easy to install is provided, which solves the problem that the screws in the prior art are easily affected by the environment and rust, which is not conducive to the later disassembly of the split bushing, and the screws are easily affected by the use environment of the bushing and become loose due to long-term vibration, affecting the stability of the overall use of the split bushing.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is: a steering gear bushing that is easy to install, comprising a first sleeve body and a second sleeve body distributed in a mirror image, connecting blocks are fixed to both end surfaces of the second sleeve body, slots adapted to the connecting blocks are provided on both end surfaces of the first sleeve body, and hidden grooves are provided on the outer walls at both ends of the first sleeve body, connecting screws are provided in the hidden grooves, fixing holes adapted to the connecting screws are provided on the connecting blocks, and the connecting screw threads penetrate into the slots and extend into the fixing holes, two shielding plates are mirror-slidably provided on the outer wall of the first sleeve body, and the two shielding plates correspond to the two hidden grooves respectively, arc-shaped slide grooves are provided at both ends of the first sleeve body, and a hook-shaped slider is slidably provided in the slide groove, the top of the slider is fixedly connected to the top surface of the shielding plate, a contraction groove connected to the hidden groove is provided on the inner wall of the shielding plate, an elastic pressing piece is provided in the contraction groove, and an inflatable component for injecting gas into the contraction groove is provided on the outer wall of the shielding plate.

[0007] Preferably, the elastic pressure piece includes a clamping block slidably disposed in the shrinkage groove, a spring is fixed between one end of the clamping block and the innermost inner wall of the shielding plate, and the other end of the clamping block penetrates into the hidden groove and abuts against the connecting screw.

[0008] Preferably, the inflation assembly comprises an air injection nozzle fixed to the outer wall of the shielding plate and connected to the interior of the shrinkage groove, and a valve core built into the air injection nozzle.

[0009] Preferably, a dust cap is threadedly connected to the outer wall of the gas injection nozzle.

[0010] Preferably, both ends of the first sleeve are provided with arc-shaped sliding grooves, a hook-shaped sliding block is slidably arranged in the sliding groove, and the top end of the sliding block is fixedly connected to the top surface of the shielding plate.

[0011] Compared with the prior art, the advantages of the utility model are:

[0012] (1) By setting the shielding plate, after the first housing and the second housing are fixedly assembled by the connecting screws, the shielding plate is slid on the outer wall of the first housing so that the shielding plate covers the hidden groove. In this way, the shielding plate can effectively isolate the connecting screws from the external environment, thereby preventing the connecting screws from rusting and reducing the impact of the environment on the connecting screws.

[0013] (2) By setting the elastic pressure piece and the inflatable component, after the shielding plate is slid to the position where the connecting screws are completely covered, the hidden groove corresponds to the shrinkage groove, and then the inflatable component is used to inject gas into the shrinkage groove, so that the tightening block slides into the hidden groove under the air pressure and presses against the connecting screws. In this way, the tightening block cooperates with the hidden groove to achieve the tightening effect of the shielding plate and the tightening effect of the tightening block on the connecting screws, thereby pressurizing the connecting screws to prevent the connecting screws from loosening due to vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0016] Figure 3 For this utility model Figure 2 Schematic diagram of the structure at point A in the middle.

[0017] The numbers in the figure are:

[0018] 1. First housing; 2. Second housing; 3. Connecting block; 4. Hidden slot; 5. Connecting screw; 6. Shielding plate; 7. Contraction slot; 8. Tightening block; 9. Spring; 10. Air injection nozzle; 11. Dust cap; 12. Sliding block; 13. Sliding slot. DETAILED DESCRIPTION

[0019] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0020] Reference Figure 1-3 As shown, a steering gear bushing that is easy to install includes a first sleeve body 1 and a second sleeve body 2 that are distributed in a mirror image. Connecting blocks 3 are fixed to both end surfaces of the second sleeve body 2. Both end surfaces of the first sleeve body 1 are provided with slots that match the connecting blocks 3. Hidden grooves 4 are provided on the outer walls at both ends of the first sleeve body 1. Connecting screws 5 are provided in the hidden grooves 4. Fixing holes that match the connecting screws 5 are provided on the connecting block 3. The connecting screws 5 are threaded into the slots and extend into the fixing holes.

[0021] When in use, align the connecting block 3 and insert it into the slot, so that the first sleeve 1 and the second sleeve 2 are aligned and matched, and then screw the connecting screw 5 into the hidden groove 4, so that the connecting screw 5 passes through the fixing hole on the connecting block 3 under the threaded structure. In this way, the connecting screw 5 cooperates with the fixing hole to fix the first sleeve 1 and the second sleeve 2 to form a split bushing, which replaces the integrated bushing in traditional technology and is convenient for disassembly and assembly.

[0022] However, in practice, the use of the connecting screw 5 is very easy to be affected by the environment and rust, which is not conducive to the later disassembly of the split bushing. In addition, the connecting screw 5 is very easy to be affected by the use environment and become loose due to long-term vibration, which affects the overall stability of the split bushing.

[0023] For this purpose refer to Figure 1-3 As shown, it is worth noting that two shielding plates 6 are provided on the outer wall of the first housing 1 for mirror sliding, and the two shielding plates 6 correspond to the two hidden grooves 4 respectively;

[0024] By setting the shielding plate 6, after the first sleeve 1 and the second sleeve 2 are fixedly combined by using the connecting screws 5, the shielding plate 6 is then slid on the outer wall of the first sleeve 1 so that the shielding plate 6 covers the hidden groove 4. In this way, the shielding plate 6 can effectively isolate the connecting screws 5 from the external environment to prevent the connecting screws 5 from rusting and reduce the impact of the environment on the connecting screws 5.

[0025] Further, refer to Figure 1 As shown, it is worth noting that arc-shaped slide grooves 13 are provided at both ends of the first sleeve 1, and a hook-shaped slider 12 is slidably arranged in the slide groove 13, and the top end of the slider 12 is fixedly connected to the top surface of the shielding plate 6;

[0026] By setting the slider 12 and the slide groove 13, the shielding plate 6 is slid, and the slider 12 slides in the slide groove 13. In this way, the slider 12 and the slide groove 13 can effectively limit the moving trajectory of the shielding plate 6 to ensure the stability of the shielding plate 6 when it moves.

[0027] Further, refer to Figure 2 and Figure 3 As shown, it is worth noting that a shrinkage groove 7 connected to the hidden groove 4 is provided on the inner wall of the shielding plate 6, an elastic pressing piece is provided in the shrinkage groove 7, and an inflatable component for injecting gas into the shrinkage groove 7 is provided on the outer wall of the shielding plate 6;

[0028] The elastic pressing member includes a pressing block 8 slidably disposed in the shrinkage groove 7, a spring 9 is fixed between one end of the pressing block 8 and the innermost inner wall of the shielding plate 6, and the other end of the pressing block 8 penetrates into the hidden groove 4 and abuts against the connecting screw 5;

[0029] By setting the elastic pressing piece and the inflatable component, after the shielding plate 6 is slid to the position where the connecting screw 5 is completely covered, the hidden groove 4 corresponds to the shrinkage groove 7, and then the inflatable component is used to inject gas into the shrinkage groove 7, so that the tightening block 8 slides into the hidden groove 4 under the air pressure and abuts against the connecting screw 5. In this way, the tightening block 8 cooperates with the hidden groove 4, which can not only achieve the tightening effect of the shielding plate 6, but also utilize the tightening effect of the tightening block 8 on the connecting screw 5 to increase the pressure on the connecting screw 5, so as to prevent the connecting screw 5 from loosening due to vibration;

[0030] During the process of sliding the clamping block 8 into the inner side of the hidden groove 4 under the air pressure, the clamping block 8 can simultaneously stretch the spring 9 to deform. In this way, by utilizing the elastic force of the spring 9, when the air pressure inside the shrinkage groove 7 is released by the inflation assembly, the clamping block 8 can quickly shrink the inside of the shrinkage groove 7 under the elastic force of the spring 9, thereby releasing the fixing effect on the shielding plate 6.

[0031] Further, refer to Figure 3 As shown, it is worth noting that the inflation assembly includes an air injection nozzle 10 fixed to the outer wall of the shielding plate 6 and connected to the inside of the contraction groove 7, and a valve core built into the air injection nozzle 10;

[0032] A dust cap 11 is threadedly connected to the outer wall of the gas injection nozzle 10;

[0033] By connecting the gas injection nozzle 10 to an external air pump, the gas injection nozzle 10 can continuously inject gas into the contraction groove 7 to increase the internal pressure of the contraction groove 7. In addition, by using the setting of the valve core, the gas can flow in one direction inside the gas injection nozzle 10 to prevent the gas filled into the contraction groove 7 from leaking outward from the gas injection nozzle 10. In the later stage, the gas pressure inside the contraction groove 7 can be released by poking the valve core with a ejector pin.

[0034] In addition, by using the setting of the dust cap 11, after manually injecting gas into the shrinkage groove 7, the dust cap 11 can be screwed into the gas injection nozzle 10. In this way, the dust cap 11 can seal the air inlet end of the gas injection nozzle 10 to prevent dust and impurities from entering the gas injection nozzle 10 and causing blockage, thereby improving the secondary use effect.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A steering gear bushing that is easy to install, comprising a first sleeve (1) and a second sleeve (2) that are distributed in a mirror image, a connecting block (3) being fixed to both end surfaces of the second sleeve (2), a slot that matches the connecting block (3) being provided on both end surfaces of the first sleeve (1), and a hidden groove (4) being provided on the outer wall at both ends of the first sleeve (1), a connecting screw (5) being provided in the hidden groove (4), a fixing hole that matches the connecting screw (5) being provided on the connecting block (3), the connecting screw (5) being threadedly inserted into the slot and extending into the fixing hole, characterized in that: Two shielding plates (6) are arranged on the outer wall of the first sleeve (1) in a mirror-image sliding manner, the two shielding plates (6) respectively corresponding to the two hidden grooves (4), a contraction groove (7) connected to the hidden groove (4) is opened on the inner wall of the shielding plate (6), an elastic pressure piece is arranged in the contraction groove (7), and an inflation component for injecting gas into the contraction groove (7) is arranged on the outer wall of the shielding plate (6).

2. A steering gear bushing that is easy to install according to claim 1, characterized in that: The elastic pressure piece comprises a pressing block (8) slidably arranged in the shrinkage groove (7), a spring (9) is fixed between one end of the pressing block (8) and the innermost inner wall of the shielding plate (6), and the other end of the pressing block (8) penetrates into the hidden groove (4) and abuts against the connecting screw (5).

3. A steering gear bushing that is easy to install according to claim 1, characterized in that: The inflation component comprises an air injection nozzle (10) fixed to the outer wall of the shielding plate (6) and connected to the interior of the contraction groove (7), and a valve core built into the air injection nozzle (10).

4. A steering gear bushing that is easy to install according to claim 3, characterized in that: A dust cap (11) is threadedly connected to the outer wall of the gas injection nozzle (10).

5. The steering gear bushing that is easy to install according to claim 1, characterized in that: Both ends of the first sleeve (1) are provided with arc-shaped sliding grooves (13), a hook-shaped sliding block (12) is slidably arranged in the sliding groove (13), and the top end of the sliding block (12) is fixedly connected to the top surface of the shielding plate (6).

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