High-strength steering screw for automobile power steering gear

Abstract

The utility model relates to a high-strength steering screw rod for an automobile power steering gear, which comprises an automobile steering screw rod main body, and two groups of auxiliary components are symmetrically arranged in the automobile steering screw rod main body; the auxiliary assembly comprises a limiting groove, the limiting groove is formed in the automobile steering screw main body, a group of guide rods are symmetrically and fixedly arranged in the limiting groove, the group of sliding frames on the same side can be effectively made to be far away from each other by opening the group of buckling grooves on the same side outwards, the limiting rods on the surfaces of the sliding frames can be conveniently moved out of the guide plates, and therefore the stability of the automobile steering screw is improved. When the limiting ring plate is installed, the limiting ring plate is clamped to the outer side of the guide plate on the basis of a set of sliding frames on the same side of the outer support, then the sliding frames are loosened, and the limiting ring plate is clamped to the outer side of the guide plate on the basis of the sliding frames on the same side of the outer support. Under the influence of resilience force of the spring, the end part of the limiting rod pops up and is effectively clamped in the guide plate, so that the fixing between the limiting ring plate and the guide plate is quickly realized.

Description

Technical Field

[0001] This utility model relates to the field of automotive power steering technology, and in particular to a high-strength steering screw for automotive power steering. Background Technology

[0002] Commonly used automotive steering systems include rack and pinion, worm gear crank pin, and recirculating ball steering. A recirculating ball steering system has recirculating steel balls between the steering screw and the rack nut, changing sliding friction into rolling friction, thus improving transmission efficiency. Limiting structures are required at both ends of the steering screw to limit the movement of the rack nut.

[0003] Patent number CN222085062U relates to a steering screw for an automotive steering system. It includes a screw body and two limiting retaining ring assemblies. Each limiting retaining ring assembly includes a limiting retaining ring, a guide sleeve, and a fixing cap. The limiting retaining ring is installed outside the mounting boss, with its end face fitting against the end face of the screw body. The guide sleeve is then installed outside the mounting boss, with the sliding block at the bottom of the sliding groove. The fixing cap is then installed at the end of the mounting boss using screws, at which point the abutting block abuts against the sliding block. The installation of the limiting retaining ring is completed through the fixing cap and guide sleeve. When the limiting retaining ring needs to be removed, simply loosen the screws and then remove the fixing cap and guide sleeve from the mounting boss in sequence. This structure eliminates the need to strike the limiting retaining ring, preventing damage to the steering screw head and thus improving the overall service life of the steering screw.

[0004] However, the steering screw of the aforementioned automotive steering system still has the following shortcomings:

[0005] The aforementioned device requires frequent tightening of several screws to disassemble or install the limit retaining ring, a process that is time-consuming and labor-intensive, reducing disassembly and assembly efficiency. In view of this, we propose a high-strength steering screw for automotive power steering systems. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a high-strength steering screw for automotive power steering systems. This solves the technical problem that the current device requires frequent tightening of several screws to disassemble or install the limit retaining ring, which is time-consuming and labor-intensive, reducing the efficiency of disassembly and assembly.

[0007] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: design a high-strength steering screw for automotive power steering, including an automotive steering screw body, wherein two sets of auxiliary components are symmetrically arranged inside the automotive steering screw body;

[0008] The auxiliary component includes a limiting groove, which is formed inside the main body of the vehicle steering screw. A set of guide rods are symmetrically fixed inside the limiting groove. A slide is sleeved on the outside of the set of guide rods. A buckle groove is formed on the surface of the slide. A set of springs is attached to the inner side of the horizontal part of the slide. A limiting rod is fixed to the outer side of the horizontal part of the slide.

[0009] Preferably, the slide is L-shaped, and when the spring is in normal condition, one side of the slide can block the opening of the limiting groove.

[0010] Preferably, the slide can slide freely on the outside of the guide rod, and the slide forms an elastic structure through the guide rod, spring and limiting groove.

[0011] Preferably, the automotive steering screw body includes a screw body, a set of screw heads are symmetrically fixed at the middle of both ends of the screw body, a set of guide plates are symmetrically fixed at the upper and lower sides of the screw heads, a limiting ring plate is sleeved on the outside of the screw heads and guide plates, and a set of guide grooves are symmetrically opened inside the limiting ring plate.

[0012] Preferably, the limiting ring plate forms an engaging structure with the guide plate through the guide groove, and the screw body, the screw head, and the guide plate are all made of alloy structural steel.

[0013] Preferably, the guide groove and the limiting groove are connected, one end of the limiting rod is inserted into the guide groove, and the guide plate has a slot that matches the end of the limiting rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model effectively separates a set of slides on the same side by opening a set of latches outward, making it easier to move the limiting rod on the surface of the slide out of the guide plate. At this time, there is no restraint between the limiting ring plate and the guide plate, which makes it easy for the limiting ring plate to move horizontally outward to achieve quick disassembly. When installing the limiting ring plate, the limiting ring plate is snapped onto the outside of the guide plate based on the set of slides on the same side of the outward support. Then the slide is released, and the end of the limiting rod pops out and effectively engages with the inside of the guide plate due to the spring rebound force, thus quickly fixing the limiting ring plate and the guide plate.

[0016] 2. In this utility model, the cooperation between the guide plate and the guide groove facilitates the initial positioning of the limiting ring plate, which in turn allows the inner limiting rod of the limiting ring plate to accurately enter the internal slot of the guide plate. Attached Figure Description

[0017] Fig. 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Fig. 2 This is a schematic diagram of the disassembled structure of this utility model;

[0019] Fig. 3 This is a partial cross-sectional structural diagram of the present invention;

[0020] Fig. 4 This is a partial cross-sectional structural diagram of the present invention from another perspective;

[0021] In the diagram: 1. Main body of the automotive steering screw; 2. Auxiliary components;

[0022] 101. Screw body; 102. Screw head; 103. Guide plate; 104. Limiting ring plate; 105. Guide groove;

[0023] 201. Limiting groove; 202. Guide rod; 203. Slide; 204. Buckle groove; 205. Spring; 206. Limiting rod. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0025] A high-strength steering screw for automotive power steering, see [link / reference] Figs. 1 to 4 It includes a car steering screw body 1, and two sets of auxiliary components 2 are symmetrically arranged inside the car steering screw body 1;

[0026] The auxiliary component 2 includes a limiting groove 201, which is opened inside the main body 1 of the automotive steering screw. A set of guide rods 202 are symmetrically fixed inside the limiting groove 201. A slide 203 is sleeved on the outside of the set of guide rods 202. A buckle groove 204 is opened on the surface of the slide 203. A set of springs 205 are attached to the inner side of the horizontal part of the slide 203. The slide 203 is L-shaped. When the springs 205 are in the normal state, one side of the slide 203 can block the opening of the limiting groove 201. Furthermore, the slide 203 can slide freely outside the guide rods 202. The slide 203 forms an elastic structure with the limiting groove 201 through the guide rods 202, the springs 205, and the guide rods 202. A limiting rod 206 is fixed to the outer side of the horizontal part of the slide 203. This utility model effectively separates a set of slides 203 on the same side by opening a set of latches 204 outwards, making it easier to move the limiting rod 206 on the surface of the slide 203 out of the guide plate 103. At this time, there is no restriction between the limiting ring plate 104 and the guide plate 103, which makes it easy to move the limiting ring plate 104 directly outwards horizontally to achieve quick disassembly. When installing the limiting ring plate 104, the limiting ring plate 104 is snapped onto the outside of the guide plate 103 based on the set of slides 203 on the same side. Then, the slide 203 is released, and the end of the limiting rod 206 pops out and effectively engages with the inside of the guide plate 103 under the influence of the spring 205, quickly achieving the fixation between the limiting ring plate 104 and the guide plate 103.

[0027] It is worth noting that the main body 1 of the automotive steering screw includes a screw body 101. A set of rod heads 102 are symmetrically fixed at the middle of both ends of the screw body 101. A set of guide plates 103 are symmetrically fixed on the upper and lower sides of the rod heads 102. A limiting ring plate 104 is sleeved on the outer side of the rod heads 102 and the guide plates 103. A set of guide grooves 105 are symmetrically opened inside the limiting ring plate 104. The limiting ring plate 104 and the guide plate 103 form a locking structure through the guide grooves 105. The screw body 101, rod heads 102 and guide plates 103 are all made of alloy structural steel. Furthermore, the guide grooves 105 and the limiting grooves 201 are connected. One end of the limiting rod 206 is inserted into the guide groove 105. The guide plate 103 has a slot that matches the end of the limiting rod 206. In this utility model, the cooperation between the guide plate 103 and the guide groove 105 facilitates the initial positioning of the limiting ring plate 104, which in turn allows the inner limiting rod 206 of the limiting ring plate 104 to accurately enter the internal slot of the guide plate 103.

[0028] Working principle: By opening a set of latches 204 on the same side outward, a set of slides 203 on the same side can be moved away from each other, making it easier to move the limiting rod 206 on the surface of the slide 203 out of the guide plate 103. At this time, there is no restraint between the limiting ring plate 104 and the guide plate 103, which makes it easy for the limiting ring plate 104 to move horizontally outward to achieve quick disassembly. When installing the limiting ring plate 104, the limiting ring plate 104 is snapped onto the outside of the guide plate 103 based on the set of slides 203 on the same side outward. The cooperation between the guide plate 103 and the guide groove 105 facilitates the initial positioning of the limiting ring plate 104, which is conducive to the subsequent precise entry of the limiting rod 206 on the inner side of the limiting ring plate 104 into the internal slot of the guide plate 103. After that, the slide 203 is released, and the end of the limiting rod 206 pops out and snaps into the inside of the guide plate 103 due to the rebound force of the spring 205, quickly realizing the fixation between the limiting ring plate 104 and the guide plate 103.

[0029] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A high-strength steering screw for automotive power steering, characterized in that, It includes a car steering screw body (1), and two sets of auxiliary components (2) are symmetrically arranged inside the car steering screw body (1); The auxiliary component (2) includes a limiting groove (201), which is opened inside the main body (1) of the car steering screw. A set of guide rods (202) are symmetrically fixed inside the limiting groove (201). A slide (203) is sleeved on the outside of the set of guide rods (202). A buckle groove (204) is opened on the surface of the slide (203). A set of springs (205) is attached to the inner side of the horizontal part of the slide (203). A limiting rod (206) is fixed to the outer side of the horizontal part of the slide (203).

2. The high-strength steering screw for automotive power steering as described in claim 1, characterized in that, The slide (203) is L-shaped. When the spring (205) is in normal condition, one side of the slide (203) can block the opening of the limiting groove (201).

3. A high-strength steering screw for automotive power steering as described in claim 1, characterized in that, The slide (203) can slide freely outside the guide rod (202). The slide (203) forms an elastic structure through the guide rod (202), the spring (205) and the limiting groove (201).

4. A high-strength steering screw for automotive power steering as described in claim 1, characterized in that, The main body (1) of the automobile steering screw includes a screw body (101). A set of screw heads (102) are symmetrically fixed at the middle of both ends of the screw body (101). A set of guide plates (103) are symmetrically fixed on the upper and lower sides of the screw heads (102). A limiting ring plate (104) is sleeved on the outside of the screw heads (102) and the guide plates (103). A set of guide grooves (105) are symmetrically opened inside the limiting ring plate (104).

5. A high-strength steering screw for automotive power steering as described in claim 4, characterized in that, The limiting ring plate (104) forms a locking structure with the guide plate (103) through the guide groove (105), and the screw body (101), the rod head (102), and the guide plate (103) are all made of alloy structural steel.

6. A high-strength steering screw for automotive power steering as described in claim 4, characterized in that, The guide groove (105) is connected to the limiting groove (201), one end of the limiting rod (206) is inserted into the guide groove (105), and the guide plate (103) has a slot that matches the end of the limiting rod (206).

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