Surface treatment mechanism based on sliding type intermediate shaft

Abstract

The utility model relates to the technical field of automobile parts, and discloses a surface treatment mechanism based on a sliding type intermediate shaft, which comprises an eighteen-tooth spline pipe, a joint fork pipe is arranged on the left side of the outer part of the eighteen-tooth spline pipe, a connecting mechanism is arranged on the left side of the outer part of the eighteen-tooth spline pipe, and the connecting mechanism is used for connecting the joint fork pipe. A sealing mechanism is arranged on the right side of the outer portion of the eighteen-tooth spline pipe and used for sealing the joint fork pipe. The connecting mechanism comprises a threaded pipe, the threaded pipe is fixedly connected to the right end of the outer wall of the eighteen-tooth spline pipe, and a threaded groove is formed in the left side of the outer wall of the joint fork pipe. According to the utility model, the threaded groove of the joint fork pipe is screwed and welded with the threaded pipe of the eighteen-tooth spline pipe, the sealing gasket is compressed to prevent liquid leakage, then the connecting pipe is fixed on the left side of the eighteen-tooth spline pipe through the clamping block, the balloon is arranged at the left end of the connecting pipe, and electrophoresis liquid is isolated in the electrophoresis process by utilizing the sealing property of the balloon.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a surface treatment mechanism based on a sliding intermediate shaft. Background Technology

[0002] The sliding intermediate shaft consists of a hollow first shaft, a second shaft inserted into the first shaft, and universal joints at both ends. To achieve the sliding function, the inner side of the first shaft has a groove of a specified length, and the outer side of the second shaft has ball bearings that fit the shape of the groove and can slide. Some sliding intermediate shafts also use sliding bushings, which are fixedly sleeved on the end of the shaft body and are interference-fitted with the outer sleeve.

[0003] A search revealed Chinese Patent Publication No. CN212373476U, which discloses an injection-molded sliding steering intermediate shaft assembly. The assembly includes a first universal joint, an internal gear tube movably mounted on the right side of the first universal joint, a plug-in block extending into the internal gear tube fixedly mounted on the right side of the first universal joint, a limiting block extending into the internal gear tube fixedly mounted on the right side of the first universal joint, a first stabilizing block fixedly mounted on the side of the limiting block away from the internal gear tube, a second stabilizing block fixedly mounted on the outside of the internal gear tube to the right of the first stabilizing block, and first fixing sleeves movably mounted on both the upper and lower sides of the internal gear tube. A first fixing screw extending into the internal gear tube is threadedly connected to the side of the first fixing sleeve away from the internal gear tube. This injection-molded sliding steering intermediate shaft assembly is simple to operate, facilitating user disassembly and assembly, effectively increasing user efficiency. However, the process is complex, production efficiency is low, and production costs are increased. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a surface treatment mechanism based on a sliding intermediate shaft, which aims to improve the problems of complex process operation, low production efficiency, and increased production costs in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a surface treatment mechanism for a sliding intermediate shaft, comprising an 18-tooth spline tube, a fork tube disposed on the outer left side of the 18-tooth spline tube, a connecting mechanism disposed on the outer left side of the 18-tooth spline tube for connecting the fork tube, and a sealing mechanism disposed on the outer right side of the 18-tooth spline tube for sealing the fork tube; the connecting mechanism comprises a threaded tube fixedly connected to the right end of the outer wall of the 18-tooth spline tube, a threaded groove being formed on the outer left side of the fork tube, a sealing gasket being installed on the inner wall of the threaded groove, a circular groove being formed on the outer left side of the fork tube, a cylinder being disposed inside the circular groove, and a protective component being disposed on the outer left side of the 18-tooth spline tube.

[0006] The above technical solution involves a connecting mechanism for connecting the fork tube and a sealing mechanism for sealing the fork tube. The threaded groove of the fork tube is press-fitted and welded to the threaded tube on the 18-tooth spline tube. The sealing gasket on the inner wall of the threaded groove is compressed to fill the thread gap and prevent liquid leakage.

[0007] As a further description of the above technical solution:

[0008] The protective component includes a connecting tube, which is disposed on the left side of the outer wall of the 18-tooth spline tube. A balloon is installed at the left end of the outer wall of the connecting tube, and a locking block is fixedly connected to the right end of the outer wall of the connecting tube. The locking block engages with the 18-tooth spline tube.

[0009] The above technical solution involves the connecting tube being engaged with the left side of the 18-tooth spline tube by a locking block, and a balloon being installed at the left end of the connecting tube. The balloon's excellent sealing properties effectively isolate the electrophoretic liquid during electrophoresis, thereby forming a sealed structure within the spline tube.

[0010] As a further description of the above technical solution:

[0011] The sealing mechanism includes a sliding groove 1, with two sliding grooves 1 being formed on the front and rear sides of the outer wall of the cylinder. A locking block 2 is slidably connected to the inner wall of the sliding groove 1. A spring is installed on an adjacent side of the outer wall of the two locking blocks 2. An inclined groove is formed on the right side of the outer wall of the locking block 2. A locking groove is formed on the inner wall of the circular groove. A sealing ring is installed on the left side of the outer wall of the cylinder. An unlocking component is provided on the right side of the outer wall of the fork tube.

[0012] Through the above technical solution: when the cylinder is inserted into the circular groove of the fork tube, the second locking block is squeezed by the inner wall of the circular groove, and the compression spring slides inward along the first sliding groove, working together with the sealing ring to achieve a tight seal.

[0013] As a further description of the above technical solution:

[0014] The unlocking component includes a button, which is located on the right side of the outer wall of the cylinder. A U-shaped inclined block is fixedly connected to the left side of the outer wall of the button. A second sliding groove is provided on the right side of the outer wall of the cylinder, and the second sliding groove is slidably connected to the button.

[0015] Through the above technical solution: the button slides along the second slide groove, causing the U-shaped inclined block to move. The inclined surface of the U-shaped inclined block pushes the inclined groove, causing the second locking block to squeeze the spring and disengage from the locking groove, thereby unlocking the engagement state between the fork tube and the cylinder, making disassembly convenient.

[0016] As a further description of the above technical solution:

[0017] The threaded groove is threaded to the threaded pipe, and the circular groove engages with the cylinder.

[0018] Through the above technical solution: the threaded groove of the fork tube is rotatably connected to the threaded tube on the 18-tooth spline tube, and the circular groove and the cylinder engage to achieve a preliminary seal.

[0019] As a further description of the above technical solution:

[0020] The slot and the block engage, and the U-shaped inclined block is slidably connected to the inner wall of the cylinder.

[0021] Through the above technical solution: the second locking block is inserted into the groove of the circular groove by the spring rebound, and the U-shaped inclined block slides inside the cylinder.

[0022] As a further description of the above technical solution:

[0023] The left end of the U-shaped inclined block is designed with an inclined surface, and the U-shaped inclined block is slidably connected to the inclined groove.

[0024] The above technical solution employs a sloping design to ensure that when the button is pressed a specific distance, the second locking block precisely disengages from the slot, avoiding excessive compression or jamming. The sloping surface of the U-shaped block pushes the sloping slot.

[0025] As a further description of the above technical solution:

[0026] The top and bottom ends of the top wall of the segmented tube are provided with round holes, and the outer left side of the outer wall of the eighteen-tooth spline tube is provided with annular grooves.

[0027] The above technical solution uses a circular hole to connect the bifurcation tube to external components, and a circular groove to embed an O-ring and annular seal.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, the threaded groove of the fork tube is screwed and welded to the threaded tube of the 18-tooth spline tube. The sealing gasket is compressed to prevent liquid leakage. Then, the connecting tube is fixed to the left side of the 18-tooth spline tube by the clamping block, and a balloon is installed at the left end of the connecting tube. The sealing property of the balloon is used to isolate the electrophoretic liquid during the electrophoresis process, forming a sealed structure. This reduces the need for employees to rework the splines inside the spline tube and can greatly improve production efficiency.

[0030] 2. In this utility model, when the cylinder is inserted into the circular groove of the fork tube, the second locking block is squeezed, and the spring slides inward. After the cylinder is fully inserted, the second locking block is locked into the groove of the circular groove under the action of the spring, and together with the sealing ring, it achieves a seal, which effectively prevents the infiltration of electrophoretic liquid and other media, ensuring that the internal precision structure of the 18-tooth spline tube is not contaminated. When disassembling, press the button to drive the U-shaped inclined block to move, and the inclined surface pushes the inclined groove, so that the second locking block squeezes the spring and disengages from the groove, unlocking the fork tube and the cylinder. Attached Figure Description

[0031] Figure 1This is a front view of the surface treatment mechanism based on a sliding intermediate shaft proposed in this utility model;

[0032] Figure 2 This is a perspective view of the surface treatment mechanism based on a sliding intermediate shaft proposed in this utility model;

[0033] Figure 3 This is a partial exploded view of the surface treatment mechanism based on a sliding intermediate shaft proposed in this utility model.

[0034] Figure 4 This is a partial structural cross-sectional view of the surface treatment mechanism based on a sliding intermediate shaft proposed in this utility model;

[0035] Figure 5 This is a partial structural exploded view of the surface treatment mechanism based on a sliding intermediate shaft proposed in this utility model.

[0036] Legend:

[0037] 1. 18-tooth spline tube; 2. Fork tube; 3. Connecting mechanism; 301. Threaded tube; 302. Threaded groove; 303. Sealing gasket; 304. Circular groove; 305. Cylindrical tube; 306. Protective component; 3061. Connecting tube; 3062. Balloon; 3063. Locking block one; 4. Sealing mechanism; 401. Slide groove one; 402. Locking block two; 403. Spring; 404. Inclined groove; 405. Locking groove; 406. Sealing ring; 407. Unlocking component; 4071. Button; 4072. U-shaped inclined block; 4073. Slide groove two; 5. Circular hole; 6. Circular groove. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Reference Figure 2 , Figure 3 and Figure 4This utility model provides an embodiment of a surface treatment mechanism for a sliding intermediate shaft, comprising an 18-tooth spline tube 1, a fork tube 2 disposed on the outer left side of the 18-tooth spline tube 1, a connecting mechanism 3 disposed on the outer left side of the 18-tooth spline tube 1 for connecting the fork tube 2, and a sealing mechanism 4 disposed on the outer right side of the 18-tooth spline tube 1 for sealing the fork tube 2; the connecting mechanism 3 includes a threaded tube 301 fixedly connected to the right end of the outer wall of the 18-tooth spline tube 1; a threaded groove 302 is formed on the outer left side of the fork tube 2, a sealing gasket 303 is installed on the inner wall of the threaded groove 302, the sealing gasket 303 on the inner wall of the threaded groove 302 is compressed to fill the thread gap to prevent liquid leakage; a circular groove 304 is formed on the outer left side of the fork tube 2, and a circular groove 304 is provided inside the circular groove 304. A protective component 306 is provided on the left side of the outer wall of the 18-tooth spline tube 1, column 305. The protective component 306 includes a connecting tube 3061, which is located on the left side of the outer wall of the 18-tooth spline tube 1. The connecting tube 3061 is engaged with the left side of the 18-tooth spline tube 1 by a locking block 3063. A balloon 3062 is installed at the left end of the connecting tube 3061. The balloon 3062 has good sealing properties and can effectively isolate the electrophoretic liquid during electrophoresis. The locking block 3063 is fixedly connected to the right end of the outer wall of the connecting tube 3061. The locking block 3063 is engaged with the 18-tooth spline tube 1. The threaded groove 302 is threadedly connected to the threaded tube 301. The threaded groove 302 of the fork tube 2 is rotatably connected to the threaded tube 301 on the 18-tooth spline tube 1. The circular groove 304 is engaged with the cylinder 305.

[0040] Specifically, the connecting mechanism 3 is used to connect the fork tube 2, and the sealing mechanism 4 is used to seal the fork tube 2. The threaded groove 302 of the fork tube 2 is rotated and press-welded to the threaded tube 301 on the 18-tooth spline tube 1. During this process, the sealing gasket 303 on the inner wall of the threaded groove 302 is compressed to fill the thread gap and prevent liquid leakage. Then, the connecting tube 3061 is fixed to the left side of the 18-tooth spline tube 1 by the clamp 3063, and a balloon 3062 is installed at the left end of the connecting tube 3061. Utilizing the excellent sealing performance of the balloon 3062, the electrophoretic liquid can be effectively isolated during the electrophoresis process, thereby forming a sealed structure in the spline inside the fork tube 2. This reduces the need for rework of the spline inside the spline tube and significantly improves production efficiency.

[0041] Reference Figure 3 and Figure 5The sealing mechanism 4 includes two sliding grooves 401, each located on the front and rear sides of the outer wall of the cylinder 305. A second locking block 402 is slidably connected to the inner wall of each sliding groove 401. A spring 403 is installed on an adjacent side of the outer wall of each second locking block 402. The cylinder 305 is inserted into the circular groove 304 of the fork tube 2. The second locking block 402 is compressed by the inner wall of the circular groove 304, causing the spring 403 to slide inward along the sliding groove 401. A slanted groove 404 is provided on the right side of the outer wall of the second locking block 402. A locking groove 405 is provided on the inner wall of the circular groove 304. A sealing ring 406 is installed on the left side of the outer wall of the cylinder 305. The sealing ring 406 is used to achieve a tight seal. The outer wall of the fork tube 2 is provided with an unlocking component 407. The unlocking component 407 includes a button 4071. The button 4071 is located on the outer wall of the cylinder 305. A U-shaped inclined block 4072 is fixedly connected to the left side of the outer wall of the button 4071. A second sliding groove 4073 is opened on the outer wall of the cylinder 305. The second sliding groove 4073 is slidably connected to the button 4071. The button 4071 slides along the second sliding groove 4073 to drive the U-shaped inclined block 4072 to move. The left end of the U-shaped inclined block 4072 adopts an inclined surface design. The U-shaped inclined block 4072 is slidably connected to the inclined groove 404. The inclined surface of the U-shaped inclined block 4072 pushes the inclined groove 404.

[0042] Specifically, when the cylinder 305 is inserted into the circular groove 304 of the fork tube 2, the second locking block 402 will be squeezed by the inner wall of the circular groove 304, causing the compression spring 403 to move inward along the first sliding groove 401. After the cylinder 305 is fully inserted, the second locking block 402 is locked into the slot 405 of the circular groove 304 under the rebound action of the spring 403, and works together with the sealing ring 406 to achieve a tight sealing effect. During disassembly, pressing the button 4071 will cause the button 4071 to slide along the second sliding groove 4073, thereby driving the U-shaped inclined block 4072 to move. The inclined surface of the U-shaped inclined block 4072 will push the inclined groove 404, causing the second locking block 402 to squeeze the spring 403 and disengage from the slot 405, thereby releasing the locking state between the fork tube 2 and the cylinder 305, making it easier to perform disassembly.

[0043] Reference Figure 1 , Figure 2 and Figure 4 The slot 405 engages with the second slot 402. The second slot 402 is engaged in the slot 405 of the circular groove 304 when the spring 403 rebounds. The U-shaped inclined block 4072 is slidably connected to the inner wall of the cylinder 305. The top and bottom ends of the top wall of the fork tube 2 are provided with circular holes 5. The circular holes 5 are used to connect the fork tube 2 to external components. The outer left side of the eighteen-tooth spline tube 1 is provided with an annular groove 6. The annular groove 6 is used to embed O-rings and annular seals.

[0044] Specifically, the second locking block 402 is snapped into the slot 405 of the circular groove 304 when the spring 403 rebounds, the U-shaped inclined block 4072 slides in the cylinder 305, the circular hole 5 is used to connect the fork tube 2 to the external parts, and the circular groove 6 is used to embed the O-ring and the annular seal.

[0045] Working principle: First, the threaded groove 302 of the fork tube 2 is rotated and connected to the threaded tube 301 on the 18-tooth spline tube 1, and then press-fitted and welded. The sealing gasket 303 on the inner wall of the threaded groove 302 is compressed, filling the thread gap to prevent liquid leakage. Then, the connecting tube 3061 is engaged with the left side of the 18-tooth spline tube 1 by the clamping block 3063, and a balloon 3062 is installed at the left end of the connecting tube 3061. Utilizing the good sealing performance of the balloon 3062, it can effectively isolate the electrophoretic liquid during electrophoresis, thereby forming a sealed structure in the spline inside the fork tube 2, which affects product performance and reduces the need for rework of the spline inside the spline tube, thus greatly improving production efficiency.

[0046] When the cylinder 305 is inserted into the circular groove 304 of the fork tube 2, the second locking block 402 is squeezed by the inner wall of the circular groove 304, and the compression spring 403 slides inward along the first sliding groove 401. When the cylinder 305 is fully inserted, the second locking block 402 is snapped into the slot 405 of the circular groove 304 by the spring 403 rebounding, and works with the sealing ring 406 to achieve a tight seal. When disassembling, press the button 4071. The button 4071 slides along the second sliding groove 4073 to drive the U-shaped inclined block 4072 to move. The inclined surface of the U-shaped inclined block 4072 pushes the inclined groove 404, so that the second locking block 402 squeezes the spring 403 and disengages from the slot 405, thereby unlocking the locking state between the fork tube 2 and the cylinder 305, making disassembly convenient.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A surface treatment mechanism based on a sliding intermediate shaft, comprising an 18-tooth spline tube (1), characterized in that: A fork tube (2) is provided on the outer left side of the eighteen-tooth spline tube (1), and a connecting mechanism (3) is provided on the outer left side of the eighteen-tooth spline tube (1). The connecting mechanism (3) is used to connect the fork tube (2). A sealing mechanism (4) is provided on the outer right side of the eighteen-tooth spline tube (1). The sealing mechanism (4) is used to seal the fork tube (2). The connecting mechanism (3) includes a threaded tube (301), which is fixedly connected to the right end of the outer wall of the eighteen-tooth spline tube (1). A threaded groove (302) is provided on the left side of the outer wall of the fork tube (2). A sealing gasket (303) is installed on the inner wall of the threaded groove (302). A circular groove (304) is provided on the left side of the outer wall of the fork tube (2). A cylinder (305) is provided inside the circular groove (304). A protective component (306) is provided on the left side of the outer wall of the eighteen-tooth spline tube (1).

2. The surface treatment mechanism based on a sliding intermediate shaft according to claim 1, characterized in that: The protective component (306) includes a connecting pipe (3061), which is located on the left side of the outer wall of the eighteen-tooth spline tube (1). A balloon (3062) is installed on the left end of the outer wall of the connecting pipe (3061), and a locking block (3063) is fixedly connected to the right end of the outer wall of the connecting pipe (3061). The locking block (3063) engages with the eighteen-tooth spline tube (1).

3. The surface treatment mechanism based on a sliding intermediate shaft according to claim 1, characterized in that: The sealing mechanism (4) includes a sliding groove (401), and two sliding grooves (401) are opened on the front and rear sides of the outer wall of the cylinder (305). The inner wall of the sliding groove (401) is slidably connected to a locking block (402). A spring (403) is installed on the adjacent side of the outer wall of the two locking blocks (402). A slanted groove (404) is opened on the right side of the outer wall of the locking block (402). A locking groove (405) is opened on the inner wall of the circular groove (304). A sealing ring (406) is installed on the left side of the outer wall of the cylinder (305). An unlocking component (407) is provided on the right side of the outer wall of the fork tube (2).

4. The surface treatment mechanism based on a sliding intermediate shaft according to claim 3, characterized in that: The unlocking component (407) includes a button (4071), which is located on the right side of the outer wall of the cylinder (305). A U-shaped inclined block (4072) is fixedly connected to the left side of the outer wall of the button (4071). A second sliding groove (4073) is provided on the right side of the outer wall of the cylinder (305), and the second sliding groove (4073) is slidably connected to the button (4071).

5. The surface treatment mechanism based on a sliding intermediate shaft according to claim 1, characterized in that: The threaded groove (302) is threadedly connected to the threaded tube (301), and the circular groove (304) engages with the cylinder (305).

6. The surface treatment mechanism based on a sliding intermediate shaft according to claim 4, characterized in that: The slot (405) engages with the second card block (402), and the U-shaped inclined block (4072) is slidably connected to the inner wall of the cylinder (305).

7. The surface treatment mechanism based on a sliding intermediate shaft according to claim 4, characterized in that: The left end of the U-shaped inclined block (4072) is designed with an inclined surface, and the U-shaped inclined block (4072) is slidably connected to the inclined groove (404).

8. The surface treatment mechanism based on a sliding intermediate shaft according to claim 1, characterized in that: The top and bottom ends of the top wall of the segmented tube (2) are provided with round holes (5), and the outer left side of the eighteen-tooth spline tube (1) is provided with annular grooves (6).

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