A switching structure and a steering gear housing

Abstract

This utility model relates to the field of steering gear housing technology, and discloses a transition structure and a steering gear housing, including a transition interface, which is disposed at one end of the housing. A connecting seat is disposed on the outside of the housing, and the connecting seat is disposed on the outside of the transition interface. The transition interface is provided with a snap-fit ​​component, a multi-layer component, and a buffer component. The snap-fit ​​component is disposed on the transition interface, the multi-layer component is disposed on the snap-fit ​​component, and the buffer component is disposed on the connecting seat. The utility model proposes to achieve rapid and accurate positioning of the multi-layer component and the transition interface through the sliding snap-fit ​​of the positioning groove and the snap-fit ​​rod, effectively avoiding assembly coaxiality deviation and improving torque transmission efficiency. The multi-layer component adopts a multi-cylinder nested tight snap-fit ​​and is combined with a firm pin for fixation, which greatly enhances the connection stability and structural strength. The buffer component relies on the support rod in the support cavity and the outer elastic pad to form a multi-directional buffer to reduce vibration impact, reduce component fatigue wear, and improve assembly convenience.

Description

Technical Field

[0001] This utility model relates to the field of steering gear housing technology, specifically to a transition structure and a steering gear housing. Background Technology

[0002] In the field of steering gear housing technology, the adapter structure, as a key component connecting the steering shaft and the core components of the steering gear, directly affects the overall performance of the steering system in terms of connection stability and adaptability.

[0003] A patent document with publication number CN 219428219 U discloses a steering gear housing and an automotive steering gear. The steering gear housing includes a cast aluminum rack body, an intermediate connecting pipe, and an adapter sleeve. The first end of the intermediate connecting pipe is connected to the cast aluminum rack body, and the second end of the intermediate connecting pipe is connected to the adapter sleeve. The outer wall of the first end of the intermediate connecting pipe is recessed inward to form a groove, and / or the outer wall of the first end of the intermediate connecting pipe protrudes outward to form a protrusion. This design is simple in structure and easy to manufacture. The protrusion or groove further increases the frictional resistance of the mating surfaces of the cast aluminum rack body and the intermediate connecting pipe, preventing the intermediate connecting pipe from loosening during steering gear operation, which would affect the connection strength between components and thus the reliability of the steering gear. This expands the range of vehicles the steering gear can be used in, specifically those with a front axle load ≤930KG, while reducing the cost of the steering gear and meeting market needs.

[0004] However, the above-mentioned solutions and existing technologies lack multi-layer positioning and buffer components. Most existing transition structures lack rapid positioning and buffering structures, which can easily lead to coaxiality deviations during assembly, affecting torque transmission efficiency. The buffer structure design is relatively simple, relying on a single elastic element to alleviate vibration, which cannot effectively weaken vibration impacts in different directions. After long-term use, vibration fatigue can easily cause wear of connecting parts, reducing the stability and service life of the steering system.

[0005] Therefore, this utility model proposes a transition structure to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a transition structure and a steering gear housing to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a transition structure, including an adapter interface, the adapter interface being disposed at one end of a housing, a connecting seat being disposed on the outside of the housing, and the connecting seat being disposed on the outside of the adapter interface; The adapter is provided with a snap-fit ​​component, a multi-layer component, and a buffer component. The snap-fit ​​component is disposed on the adapter, the multi-layer component is disposed on the snap-fit ​​component, and the buffer component is disposed on the connector.

[0008] Preferably, the snap-fit ​​slot in the snap-fit ​​assembly is located inside the adapter, and a first positioning slot is evenly provided in the snap-fit ​​slot, and a first snap-fit ​​rod is slidably snapped into the first positioning slot.

[0009] Preferably, the positioning cylinder in the multi-layer component is fixedly installed inside the snap-fit ​​groove, and an inner cylinder is fixedly provided inside the positioning cylinder. A second positioning groove is evenly provided on the positioning cylinder, and a second snap-fit ​​rod is slidably snapped into the second positioning groove.

[0010] Preferably, a first locking rod is uniformly fixedly disposed on the outer side of the mounting cylinder in the multi-layer component, and a second mounting cylinder is fixedly disposed inside the mounting cylinder, with a second locking rod uniformly disposed on the second mounting cylinder.

[0011] Preferably, the mounting cylinder in the multi-layer assembly is snapped into the snap-fit ​​groove, the outer side of the mounting cylinder is snapped into the inside of the snap-fit ​​groove, the second mounting cylinder is snapped into the outer side of the positioning cylinder, and the mounting cylinder is fixedly mounted on the connecting seat by a sturdy pin.

[0012] Preferably, the buffer assembly has a support cavity uniformly arranged inside the buffer pad, a support rod uniformly installed inside the support cavity, an elastic pad uniformly arranged outside the support cavity, and the buffer pad is fixedly arranged on the outer side of the mounting cylinder and the second mounting cylinder.

[0013] A steering gear housing, including the aforementioned adapter structure.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: Through the sliding engagement of the positioning groove and the snap-fit ​​rod in the snap-fit ​​assembly, rapid and accurate positioning of the multi-layer assembly and the adapter interface is achieved, effectively avoiding coaxiality deviation during assembly and improving torque transmission efficiency; the multi-layer assembly adopts a multi-cylinder nested tight snap-fit ​​structure, combined with a firm pin fixation, significantly enhancing connection stability and structural strength; the buffer assembly, through the synergistic action of the support rod inside the support cavity and the outer elastic pad, forms a multi-directional buffer structure, effectively weakening vibration and impact during vehicle operation and reducing vibration fatigue wear of connecting parts. The three work together to significantly improve the overall stability and service life of the steering system, while also improving assembly convenience, meeting the performance requirements of diverse vehicle models for the adapter structure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the snap-fit ​​assembly structure of this utility model; Figure 3 This is a schematic diagram of the multi-layer component structure of this utility model; Figure 4 This is a schematic diagram of the buffer component structure of this utility model.

[0016] In the diagram: Adapter 1, Housing 2, Connecting seat 3, Snap-fit ​​groove 401, First positioning groove 402, First snap-fit ​​rod 403, Positioning cylinder 501, Internal cylinder 502, Second positioning groove 503, Second snap-fit ​​rod 504, Mounting cylinder 505, Second mounting cylinder 506, Buffer pad 601, Support cavity 602, Support rod 603, Elastic pad 604. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some embodiments of this utility model, not all embodiments, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. The technical solutions in the embodiments of this utility model will be clearly and completely described below.

[0018] Example 1: Please refer to Figures 1 to 2 A transition structure and steering gear housing include an adapter 1, which is disposed at one end of a housing 2. A connecting seat 3 is disposed on the outside of the housing 2 and on the outside of the adapter 1. The adapter 1 is provided with a snap-fit ​​component, a multi-layer component, and a buffer component. The snap-fit ​​component is disposed on the adapter 1, the multi-layer component is disposed on the snap-fit ​​component, and the buffer component is disposed on the connecting seat 3.

[0019] The snap-fit ​​slot 401 in the snap-fit ​​assembly is located inside the adapter 1. The snap-fit ​​slot 401 is uniformly provided with first positioning slots 402, and the first snap-fit ​​rod 403 is slidably snapped into the first positioning slot 402.

[0020] In use, first align and fix the adapter 1 with the preset installation end of the housing 2, ensuring that the connector 3 is located at the designated position outside the adapter 1. Before assembly, clean the inside of the snap-fit ​​groove 401 and the first positioning groove 402 to avoid impurities affecting the snap-fit ​​accuracy. Then, align the first snap-fit ​​rod 403 on the multi-layer component with the first positioning groove 402 in the snap-fit ​​groove 401 and slowly push it in axially. The initial positioning is achieved by the sliding cooperation between the first snap-fit ​​rod 403 and the first positioning groove 402. During the process, observe whether the first snap-fit ​​rod 403 is fully embedded in the first positioning groove 402. After ensuring that there is no offset, complete the initial assembly of the snap-fit ​​component and the adapter 1. This lays a precise positioning foundation for the subsequent installation of the multi-layer component and avoids insufficient overall coaxiality due to the initial positioning deviation in the subsequent assembly.

[0021] Example 2: Based on Example 1, please refer to... Figures 2 to 3In the multi-layer component, the positioning cylinder 501 is fixedly installed inside the snap-fit ​​groove 401. An inner cylinder 502 is fixedly installed inside the positioning cylinder 501. The positioning cylinder 501 is evenly provided with a second positioning groove 503. A second snap-fit ​​rod 504 is slidably snapped into the second positioning groove 503.

[0022] A first locking rod 403 is uniformly fixed on the outer side of the mounting cylinder 505 in the multi-layer component, and a second mounting cylinder 506 is fixedly fixed inside the mounting cylinder 505. A second locking rod 504 is uniformly arranged on the second mounting cylinder 506.

[0023] In the multi-layer assembly, the mounting cylinder 505 is snapped into the snap-fit ​​groove 401, and the outer side of the mounting cylinder 505 is snapped tightly against the inside of the snap-fit ​​groove 401. The second mounting cylinder 506 is snapped tightly against the outer side of the positioning cylinder 501. The mounting cylinder 505 is fixedly mounted on the connecting seat 3 by a fastening pin 507.

[0024] In use, based on the initial positioning of the snap-fit ​​assembly in Embodiment 1, the positioning cylinder 501 is fixedly installed inside the snap-fit ​​groove 401, ensuring that the inner cylinder 502 and the positioning cylinder 501 are coaxial. Then, the first snap-fit ​​rod 403 on the outside of the mounting cylinder 505 is aligned with the first positioning groove 402 inside the snap-fit ​​groove 401, and at the same time, the second snap-fit ​​rod 504 on the second mounting cylinder 506 is aligned with the second positioning groove 503 on the positioning cylinder 501. The mounting cylinder 505 is slowly pushed until its outer part is tightly attached to the inside of the snap-fit ​​groove 401, and the outer part of the second mounting cylinder 506 is tightly attached to the outer part of the positioning cylinder 501. At this time, the mounting cylinder 505 achieves precise positioning through double snap-fit. Finally, the fixing pin 507 is passed through the preset hole of the mounting cylinder 505 and the connecting seat 3 to complete the fixing, so that the multi-layer assembly forms a stable nested support structure and improves the overall connection strength.

[0025] Example 3: Based on Example 2, please refer to... Figures 3 to 4 The buffer assembly has a buffer pad 601 with a support cavity 602 evenly arranged inside, a support rod 603 evenly installed inside the support cavity 602, and an elastic pad 604 evenly arranged outside the support cavity 602. The buffer pad 601 is fixedly arranged on the outer side of the mounting cylinder 505 and the second mounting cylinder 506.

[0026] In use, after the multi-layer component of Embodiment 2 is installed, the buffer pad 601 is fitted to the outer side of the mounting cylinder 505 and the second mounting cylinder 506. The buffer pad 601 completely covers the contact area between the mounting cylinder 505 and the second mounting cylinder 506 and the external components. When the steering gear is working, the vibration is transmitted to the connecting seat 3 through the external components. The elastic pad 604 on the outer side of the support cavity 602 in the buffer pad 601 first absorbs part of the vibration energy and undergoes elastic deformation. At the same time, the support rod 603 in the support cavity 602 plays a rigid support role, avoiding excessive deformation of the buffer pad 601 and affecting the connection stability. The elastic pad 604 and the support rod 603 work together to effectively weaken the vibration impact in different directions, reduce the transmission of vibration to the steering interface 1 and the multi-layer component, thereby reducing the vibration fatigue wear of the connecting components, extending the service life of the steering system, and ensuring the stability and smoothness during the steering process.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A transition structure, comprising an adapter (1), the adapter (1) being disposed at one end of a housing (2), and a connecting seat (3) being disposed on the outside of the housing (2), the connecting seat (3) being disposed on the outside of the adapter (1); Its features are: It includes a snap-fit ​​assembly, a multi-layer assembly, and a buffer assembly. The snap-fit ​​assembly is disposed on the adapter (1), the multi-layer assembly is disposed on the snap-fit ​​assembly, and the buffer assembly is disposed on the connector (3). The snap-fit ​​slot (401) in the snap-fit ​​assembly is located inside the adapter (1). The snap-fit ​​slot (401) is uniformly provided with a first positioning slot (402). The first positioning slot (402) is slidably snapped into the first snap-fit ​​rod (403). The positioning cylinder (501) in the multi-layer component is fixedly installed inside the snap-fit ​​groove (401). An inner cylinder (502) is fixedly installed inside the positioning cylinder (501). A second positioning groove (503) is evenly arranged on the positioning cylinder (501). A second snap-fit ​​rod (504) is slidably snapped into the second positioning groove (503). The buffer assembly has a support cavity (602) uniformly arranged inside the buffer pad (601), a support rod (603) uniformly installed inside the support cavity (602), an elastic pad (604) uniformly arranged outside the support cavity (602), and the buffer pad (601) is fixedly arranged on the outer side of the mounting cylinder (505) and the second mounting cylinder (506).

2. The adapter structure according to claim 1, characterized in that: The mounting cylinder (505) in the multi-layer assembly has a first locking rod (403) uniformly fixed on its outer side, and a second mounting cylinder (506) is fixedly fixed inside the mounting cylinder (505). The second mounting cylinder (506) has a second locking rod (504) uniformly arranged on its surface.

3. The adapter structure according to claim 1, characterized in that: The mounting cylinder (505) in the multi-layer assembly is snapped into the snap-fit ​​groove (401). The outer side of the mounting cylinder (505) is snapped into the inside of the snap-fit ​​groove (401). The second mounting cylinder (506) is snapped into the outer side of the positioning cylinder (501). The mounting cylinder (505) is fixedly mounted on the connecting seat (3) by a fastening pin (507).

4. A steering gear housing, characterized in that: The adapter structure includes any one of claims 1-3 above.

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