A rear suspension upper thrust rod connection structure

Abstract

The utility model relates to the technical field of automobile chassis suspension system provides a rear suspension upper push rod connecting structure, include: push rod body, this rear suspension upper push rod connecting structure still include: two connecting heads, set up on the both ends surface of push rod body, the inside of two connecting heads is provided with push rod pin shaft, wherein the surface of two push rod pin shafts is provided with the positioning hole. The utility model, through the limit boss of the surface of the connecting seat is set on the surface of the connecting head, rotates the positioning bolt, drives the slider on the surface to move along the limit groove inside, makes the moving plate set on the surface of push rod pin shaft, the surface of the auxiliary block one side is slidably connected on the surface of the connecting seat, further strengthens the support stress work, rotates the locking bolt in the protective cover inside simultaneously, makes its one end to penetrate in the inside of positioning hole, and carries out the installation work with the inside of the threaded hole is embedded in the screw thread, increases the stability.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive chassis suspension systems, and in particular to a thrust rod connection structure for a rear suspension. Background Technology

[0002] In the rear suspension system of commercial vehicles (such as heavy trucks, buses, and engineering vehicles), the upper thrust rod is a key guiding component connecting the axle and the frame.

[0003] In existing technologies, most existing thrust rod connection structures use rubber bushings and single bolts for fixing. After long-term exposure to alternating loads, rubber fatigue can easily lead to bushing aging and cracking. In addition, the bushings are pressed too tightly, making replacement work cumbersome during later maintenance. Furthermore, some connection structures lack rigidity, affecting operational stability. Therefore, solutions are needed. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art: most existing thrust rod connection structures use rubber bushings + single bolt fixing. After long-term exposure to alternating loads, rubber fatigue can easily lead to bushing aging and cracking. At the same time, the bushings are pressed too tightly, making replacement work cumbersome during later maintenance. In addition, some connection structures have insufficient rigidity, affecting the stability of operation.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a thrust rod connection structure for a rear suspension, comprising: a thrust rod body, and the thrust rod connection structure for the rear suspension further comprising:

[0006] Two connectors are provided on the two end surfaces of the thrust rod body, and thrust rod pins are provided inside the two connectors, wherein positioning holes are provided on the surface of the two thrust rod pins;

[0007] A mounting structure is disposed on the outer surface of the thrust rod body, the mounting structure comprising:

[0008] Two connectors are fitted onto the outer surfaces of the two connectors, and mounting holes are provided on the surfaces of the two connectors.

[0009] A locking structure is disposed on the surfaces of the two connecting seats, the locking structure comprising:

[0010] Two sets of positioning bolts, threaded on the surfaces of the two connecting seats.

[0011] Preferably, the mounting structure further includes:

[0012] Two sets of limiting bosses are provided on one side surface of the two connecting seats, wherein the two sets of limiting bosses are sleeved on the surface of the connector.

[0013] The technical effect of adopting the above-mentioned further solution is that by setting limit bosses on the surfaces of multiple connector seats, and the limit bosses are sleeved on the surface of the connector head, the connector head is restricted from excessive swinging, and the bushing is prevented from excessive shearing.

[0014] Preferably, the mounting structure further includes:

[0015] Two sets of limiting grooves are formed on the surfaces of the two connecting seats opposite each other. Sliders are slidably embedded inside the two sets of limiting grooves, and one side surface of multiple sliders is movably connected to one end surface of the positioning bolt.

[0016] The technical effect of adopting the above-mentioned further solution is that the limiting groove opened on the surface of the connecting seat provides limiting work for the slider, while multiple sliders complete the position movement with the help of positioning bolts.

[0017] Preferably, the mounting structure further includes:

[0018] Two movable plates are disposed on one side surface of multiple sliders, and auxiliary blocks are disposed on one side surface of the multiple movable plates, wherein the multiple auxiliary blocks are slidably connected to the surface of the connecting seat.

[0019] The technical effect of adopting the above-mentioned further solution is that the sliding plate on the surface is positioned by the slider, and the auxiliary block on one side of the sliding plate is slidably connected to the surface of the connecting seat, which further strengthens the support and force-bearing work.

[0020] Preferably, the mounting structure further includes:

[0021] Multiple inner metal sleeves are disposed on the inner walls of multiple movable plates. The inner walls of the multiple inner metal sleeves are provided with rubber elastic layers. The inner walls of the multiple rubber elastic layers are provided with outer metal sleeves, and the outer metal sleeves are sleeved on the surface of the thrust rod pin.

[0022] The technical effect of adopting the above-mentioned further solution is that the composite bushing composed of the inner metal sleeve, rubber elastic layer and outer metal sleeve inside the multiple moving plates absorbs vibration and impact and provides radial and axial elastic support.

[0023] Preferably, the locking structure further includes:

[0024] Multiple protective covers are disposed on the surfaces of the multiple movable plates, wherein the multiple protective covers are fitted onto the surface of the thrust rod pin.

[0025] The technical effect of adopting the above-mentioned further solution is that the protective cover is positioned by the moving plate and the bushing is limited, while the protective cover protects the thrust rod pin.

[0026] Preferably, the locking structure further includes:

[0027] Multiple threaded holes are formed inside the multiple protective covers, and a locking bolt is threaded into one end of each of the multiple threaded holes.

[0028] The technical effect of adopting the above-mentioned further solution is that the locking bolts are threaded through the threaded holes opened inside the multiple protective covers.

[0029] Preferably, one end of each of the locking bolts is movably embedded inside the positioning hole.

[0030] The technical effect of adopting the above-mentioned further solution is that when the locking bolt is inserted through the positioning hole, the thrust rod pin is positioned.

[0031] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0032] 1. In this utility model, by fitting the limiting boss on the surface of the connecting seat onto the surface of the connecting head, rotating the positioning bolt causes the slider on the surface to move along the inside of the limiting groove, so that the moving plate is fitted onto the surface of the thrust rod pin, and the auxiliary block on one side of the surface slides onto the surface of the connecting seat, further strengthening the support and force-bearing work. At the same time, rotating the locking bolt inside the protective cover causes one end of it to pass through the inside of the positioning hole, and the thread is embedded in the inside of the threaded hole for installation, increasing the stability performance.

[0033] 2. In this utility model, a composite bushing is formed by the inner metal sleeve, the rubber elastic layer and the outer metal sleeve in sequence, and is sleeved on the surface of the thrust rod pin to absorb vibration and impact, and provide radial and axial elastic support. When replacement is required, the positioning bolt is rotated in the opposite direction, and the slider automatically slides along the inside of the limiting groove, driving the moving plate to disengage from the thrust rod pin, so as to replace the inner bushing. The operation is simple. Attached Figure Description

[0034] Figure 1 This utility model provides a side view of the thrust rod connection structure on the rear suspension.

[0035] Figure 2 This utility model provides a partially unfolded structural diagram of a thrust rod connection structure on a rear suspension.

[0036] Figure 3 This utility model provides a partial cross-sectional view of the thrust rod connection structure on the rear suspension.

[0037] Figure 4 This utility model proposes a thrust rod connection structure for a rear suspension. Figure 3 Enlarged structural diagram at point A in the middle.

[0038] Legend:

[0039] 1. Thrust rod body; 101. Connector; 1011. Thrust rod pin; 1012. Positioning hole; 2. Connecting seat; 201. Mounting hole; 202. Limiting groove; 2021. Slider; 2022. Positioning bolt; 2023. Moving plate; 2024. Inner metal sleeve; 2025. Rubber elastic layer; 2026. Outer metal sleeve; 2027. Auxiliary block; 203. Protective cover; 2031. Threaded hole; 2032. Locking bolt; 204. Limiting boss. Detailed Implementation

[0040] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0041] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0042] Example 1, as Figure 1-4 As shown, the locking structure of the thrust rod connection structure on the rear suspension is set on the surface of the two connecting seats 2, and two sets of positioning bolts 2022 are threaded on the surface of the connecting seats 2 for initial fixing of the moving plate 2023; multiple protective covers 203 are set on the surface of the moving plate 2023 and sleeved on the outer surface of the thrust rod pin 1011 to form a closed protective space.

[0043] The protective cover 203 has multiple threaded holes 2031 inside, with locking bolts 2032 connected to its internal threads. One end of the locking bolt 2032 passes through and is embedded in the positioning hole 1012 of the thrust rod, and achieves mechanical positioning with the threaded hole 2031. During operation, the moving plate 2023 is pre-tightened by the positioning bolt 2022, then the protective cover 203 is placed on the outside of the thrust rod pin 1011, and finally the locking bolt 2032 is tightened to make it embed into the positioning hole 1012, completing the double locking. Through the synergistic effect of double positioning and protection, the fixed operation is achieved. It also has dustproof, waterproof and impact-proof functions, solving the problems of easy loosening, easy contamination and poor safety of traditional pin connections.

[0044] In this embodiment, by fitting the limiting boss 204 on the surface of the connecting seat 2 onto the surface of the connecting head 101, rotating the positioning bolt 2022 causes the slider 2021 on the surface to move along the inside of the limiting groove 202, so that the moving plate 2023 is fitted onto the surface of the thrust rod pin 1011, and the auxiliary block 2027 on one side is slidably connected to the surface of the connecting seat 2, further strengthening the support and force-bearing work. At the same time, rotating the locking bolt 2032 inside the protective cover 203 causes one end to pass through the inside of the positioning hole 1012, and the thread is embedded in the inside of the threaded hole 2031 for installation, increasing the stability performance.

[0045] Example 2, as Figure 1-4 As shown, the thrust rod connection structure on the rear suspension includes two connectors 101 at both ends of the thrust rod body 1, with a thrust rod pin 1011 inside and a positioning hole 1012 on the surface of the pin; the mounting structure is set on the outer surface of the thrust rod body 1 and includes two connecting seats 2, which are wrapped around the outer surface of the connectors 101. The connecting seats 2 are provided with mounting holes 201 for connecting to the vehicle frame.

[0046] The connecting seat 2 has a limiting boss 204 on one side, which is fitted onto the surface of the connecting head 101 for radial positioning. A limiting groove 202 is opened on the opposite surface of the connecting seat 2, in which a slider 2021 is slidably embedded. The slider 2021 is connected to the positioning bolt 2022. Multiple movable plates 2023 are arranged on one side of the slider 2021. The inner wall of the movable plates 2023 is provided with an inner metal sleeve 2024. The inner metal sleeve 2024 is provided with a rubber elastic layer 2025. The rubber elastic layer 2025 is provided with an outer metal sleeve 2026. The outer metal sleeve 2026 is fitted onto the surface of the thrust rod pin 1011. During operation, tightening the positioning bolt 2022 pushes the movable plate 2023, so that the composite bushing and the thrust rod pin 1011 form a tight fit. The rubber elastic layer 2025 provides buffering and vibration reduction. When replacement is required, the inner bushing can be replaced by rotating the positioning bolt 2022 in the opposite direction. The operation is convenient.

[0047] In this embodiment, a composite bushing is formed by the inner metal sleeve 2024, the rubber elastic layer 2025, and the outer metal sleeve 2026 in sequence, and is fitted onto the surface of the thrust rod pin 1011 to absorb vibration and impact, and provide radial and axial elastic support. When replacement is required, the positioning bolt 2022 is rotated in the opposite direction, and the sliding slider 2021 automatically slides along the inside of the limiting groove 202, driving the moving plate 2023 to disengage from the thrust rod pin 1011, so that the inner bushing can be replaced. The operation is simple.

[0048] Working principle: During use, the connecting seat 2 is installed on the frame by fitting the parts into the mounting holes 201. The limiting boss 204 on the surface of the connecting seat 2 is fitted onto the surface of the connector 101. Rotating the positioning bolt 2022 causes the slider 2021 on the surface to move along the limiting groove 202, allowing the moving plate 2023 to fit onto the surface of the thrust rod pin 1011. One side of the auxiliary block 2027 on the surface of the connecting seat 2 slides, further strengthening the support. Simultaneously, rotating the locking bolt 2032 inside the protective cover 203 allows one end to pass through... The positioning hole 1012 is installed inside the threaded hole 2031 to increase stability. In addition, a composite bushing is formed by the inner metal sleeve 2024, the rubber elastic layer 2025 and the outer metal sleeve 2026 in sequence, and is sleeved on the surface of the thrust rod pin 1011 to absorb vibration and impact and provide radial and axial elastic support. When replacement is required, the positioning bolt 2022 is rotated in the opposite direction, and the slider 2021 automatically slides along the inside of the limiting groove 202, which drives the moving plate 2023 to disengage from the thrust rod pin 1011 to replace the internal bushing. The operation is simple.

[0049] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A thrust rod connection structure for a rear suspension, comprising: The thrust rod body (1) is characterized in that the thrust rod connection structure on the rear suspension further includes: Two connectors (101) are provided on the two end surfaces of the thrust rod body (1). The two connectors (101) are provided with thrust rod pins (1011) inside, and the surfaces of the two thrust rod pins (1011) are provided with positioning holes (1012). An installation structure is provided on the outer surface of the thrust rod body (1), the installation structure comprising: Two connectors (2) are fitted onto the outer surfaces of the two connectors (101), and mounting holes (201) are provided on the surfaces of the two connectors (2). A locking structure is disposed on the surfaces of the two connecting seats (2), the locking structure comprising: Two sets of positioning bolts (2022) are threaded on the surfaces of the two connecting seats (2).

2. The thrust rod connection structure for a rear suspension according to claim 1, characterized in that: The mounting structure also includes: Two sets of limiting bosses (204) are provided on one side surface of the two connecting seats (2), wherein the two sets of limiting bosses (204) are sleeved on the surface of the connector (101).

3. The thrust rod connection structure for a rear suspension according to claim 2, characterized in that: The mounting structure also includes: Two sets of limiting grooves (202) are formed on the surfaces of the two connecting seats (2) opposite to each other. Slider (2021) is slidably embedded inside the two sets of limiting grooves (202), wherein one side surface of a plurality of sliders (2021) is movably connected to one end surface of a positioning bolt (2022).

4. The thrust rod connection structure for a rear suspension according to claim 3, characterized in that: The mounting structure also includes: Two movable plates (2023) are disposed on one side surface of multiple sliders (2021), and auxiliary blocks (2027) are disposed on one side surface of multiple movable plates (2023), wherein multiple auxiliary blocks (2027) are slidably connected to the surface of the connecting seat (2).

5. The thrust rod connection structure for a rear suspension according to claim 4, characterized in that: The mounting structure also includes: Multiple inner metal sleeves (2024) are disposed on the inner walls of multiple movable plates (2023). The inner walls of the multiple inner metal sleeves (2024) are provided with rubber elastic layers (2025). The inner walls of the multiple rubber elastic layers (2025) are provided with outer metal sleeves (2026), and the outer metal sleeves (2026) are sleeved on the surface of the thrust rod pin (1011).

6. The thrust rod connection structure for a rear suspension according to claim 5, characterized in that: The locking structure further includes: Multiple protective covers (203) are disposed on the surfaces of multiple movable plates (2023), wherein the multiple protective covers (203) are fitted onto the surface of the thrust rod pin (1011).

7. The thrust rod connection structure for a rear suspension according to claim 6, characterized in that: The locking structure further includes: Multiple threaded holes (2031) are provided inside the multiple protective covers (203), and a locking bolt (2032) is threaded into one end of the multiple threaded holes (2031).

8. The thrust rod connection structure for a rear suspension according to claim 7, characterized in that: One end of each of the multiple locking bolts (2032) is movably embedded inside the positioning hole (1012).

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