Motor cover with automatic positioning screw sleeve

By introducing a torsion spring and push rod into the motor cover, the problem of manual fixing caused by loose threaded sleeves was solved, and automatic positioning of the threaded sleeves was achieved, thus improving work efficiency.

CN223798013UActive Publication Date: 2026-01-13NINGBO CHUANGXING INTELLIGENT TRANSMISSION CO LTD
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Patent Information

Application Number
CN202520284433.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2026-01-13
Estimated Expiration
2035-02-21

AI Technical Summary

Technical Problem

After prolonged use, the screw sleeves on the existing motor cover tend to loosen, requiring manual fixing and preventing automatic positioning, which affects work efficiency.

Method used

The design employs a torsion spring and a push rod, which allows the push rod to rotate automatically as the sleeve moves downward. By limiting the fit between the ball and the notch, the sleeve is automatically positioned, preventing it from moving upward.

Benefits of technology

It achieves automatic positioning of the threaded sleeve, reduces manual operation, and improves work efficiency.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223798013U_ABST
    Figure CN223798013U_ABST
Patent Text Reader

Abstract

The utility model discloses a motor cover with an automatic positioning screw sleeve, and relates to the technical field of motor covers, the motor cover comprises a motor cover, the top surface of the motor cover is inlaid with an installation mechanism, the top surface of the installation mechanism is provided with a plurality of installation holes. According to the motor cover with the automatic positioning screw sleeve, a push rod and a rotating rod can rotate through downward movement of the screw sleeve, so that a torsion spring deforms, subsequent operation is facilitated, and then when a notch and a hole are aligned left and right, the push rod can automatically rotate through the torsion spring; the other end of the push rod moves towards the direction of the mounting hole, then the limiting ball connected with the other end of the push rod enters the notch, the other end of the push rod is located in the notch, the thread sleeve can be prevented from moving upwards, therefore, the thread sleeve can be automatically positioned, manual operation is reduced, and working efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of motor cover technology, specifically a motor cover with an automatic positioning screw sleeve. Background Technology

[0002] A motor cover is a component used to cover the outer casing of a motor. Its main function is to protect the internal components of the motor and prevent external dust, moisture, and other contaminants from entering the motor and affecting its normal operation.

[0003] A search of patent application number CN201610413202.8 reveals a novel motor end cover. This invention uses screws to fix the outer cover, motor body, and inner cover into a single unit, preventing the threaded end cover from loosening or falling off due to motor vibration, thus avoiding safety accidents. However, during use, when installing the screw sleeve in the motor cover, prolonged use can cause the screw sleeve to loosen, gradually separating from the motor cover, which affects the use of the motor cover. Furthermore, fixing the screw sleeve requires manual operation, as automatic positioning of the screw sleeve is not possible, thus failing to improve work efficiency.

[0004] According to patent application number CN202320585045.4, this utility model relates to the field of servo motor end cover processing technology, specifically a servo motor end cover with a positioning structure. The first, second, and third sealing gaskets increase the friction between the positioning block and the positioning groove, preventing the positioning block from wobbling inside the groove due to tolerance differences. This also prevents dust from entering the housing through the gap between the positioning block and the positioning groove, thus affecting the operation of the internal parts of the servo motor. However, during use, when the screw sleeve is installed in the motor cover, prolonged use can cause it to loosen and gradually separate from the cover, affecting its functionality. Furthermore, fixing the screw sleeve requires manual operation, making automatic positioning impossible and hindering work efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a motor cover with an automatically positioning screw sleeve. A torsion spring automatically rotates the push rod, causing its other end to move towards the mounting hole. Subsequently, a limiting ball connected to the other end of the push rod enters the notch, contacting the screw sleeve. Because the other end of the push rod is positioned within the notch, the screw sleeve is prevented from moving upwards. This solves the problem that prolonged use can cause the screw sleeve to loosen and gradually separate from the motor cover, affecting its use. Furthermore, fixing the screw sleeve requires manual operation, making automatic positioning impossible and hindering work efficiency.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a motor cover with an automatic positioning screw sleeve, comprising a motor cover, wherein an installation mechanism is inlaid on the top surface of the motor cover, and an installation hole is provided on the top surface of the installation mechanism, wherein there are multiple installation holes, and a screw sleeve is provided on the top of each installation hole.

[0007] The mounting mechanism includes a mounting plate. Each mounting hole has holes on both sides, and the holes are connected to the mounting holes. There are multiple holes. Each hole has a fixing plate inside, and the fixing plate is fixedly connected to the mounting plate. A rotating rod is provided on the side of the fixing plate near the hole. Round rods are fixedly provided on both the front and back of the rotating rod. A pushing rod is provided inside the hole, and the pushing rod passes through the rotating rod.

[0008] Preferably, the push rod has grooves on both sides, and a connecting spring is provided inside the groove.

[0009] Preferably, the rotating rod is slidably connected to the pushing rod via a groove, and limiting balls are provided on both sides of the bottom end of the pushing rod.

[0010] Preferably, one end of the round rod extends into the interior of the mounting plate and is rotatably connected to the mounting plate, and a torsion spring is provided at the end of the round rod away from the rotating rod.

[0011] Preferably, connecting rods are fixedly provided at both ends of the push rod, and the limiting ball is fixedly connected to the push rod through the connecting rods.

[0012] Preferably, a protrusion is fixedly provided at the end of the round rod away from the rotating rod, and a limiting block is provided on one side of the protrusion.

[0013] Preferably, the top of the fixing plate extends to the top of the mounting plate, and the hole is located at the top of the mounting hole.

[0014] Preferably, the top surface of the threaded sleeve is provided with a notch, and the threaded sleeve is connected to the mounting hole.

[0015] Preferably, the torsion spring is located inside the mounting plate, and the top of the fixing plate is higher than the top of the push rod. Beneficial effects

[0016] This utility model provides a motor cover with an automatically positioning screw sleeve. Compared with the prior art, it has the following advantages:

[0017] 1. This motor cover with an automatic positioning sleeve allows the push rod and rotating rod to rotate as the sleeve moves downwards. This causes the push rod to change from a horizontal to a vertical or tilted position, deforming the torsion spring for easier subsequent operation. When the notch and hole are aligned horizontally, the torsion spring automatically rotates the push rod, moving its other end towards the mounting hole. This causes the limiting ball connected to the other end of the push rod to enter the notch, contacting the sleeve. With the other end of the push rod in the notch, the sleeve is prevented from moving upwards, thus automatically positioning the sleeve, reducing manual operation and improving work efficiency.

[0018] 2. The motor cover with automatic positioning screw sleeve will cause the protrusion to contact the limiting block when the push rod is in a horizontal state. The contact between the protrusion and the limiting block can only rotate clockwise, allowing the limiting ball to enter the hole, which facilitates the positioning of the screw sleeve. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a sectional view of the installation mechanism of this utility model;

[0021] Figure 3 For the present utility model Figure 2 Enlarged view of part A in the image;

[0022] Figure 4 This is a cross-sectional view of the rotating rod and the pushing rod of this utility model;

[0023] Figure 5 This is a side view of the rotating rod and connecting rod of this utility model;

[0024] Figure 6 This is a perspective view of the screw sleeve of this utility model.

[0025] In the diagram: 1. Motor cover; 2. Mounting mechanism; 201. Mounting plate; 202. Hole; 203. Fixing plate; 204. Rotating rod; 205. Round rod; 206. Push rod; 207. Limiting ball; 208. Groove; 209. Connecting spring; 210. Torsion spring; 211. Connecting rod; 212. Protrusion; 213. Limiting block; 3. Mounting hole; 4. Screw sleeve; 5. Notch. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0027] Please see Figure 1-4 This utility model provides a technical solution: a motor cover with an automatic positioning screw sleeve, including a motor cover 1, an installation mechanism 2 is inlaid on the top surface of the motor cover 1, and an installation hole 3 is provided on the top surface of the installation mechanism 2. There are multiple installation holes 3, and a screw sleeve 4 is provided on the top of each installation hole 3. The screw sleeve 4 is moved downward to install the screw sleeve 4 on the installation hole 3 on the surface of the installation plate 201, so that the bottom end of the screw sleeve 4 contacts the push rod 206 first.

[0028] The mounting mechanism 2 includes a mounting plate 201. Each mounting hole 3 has holes 202 on both sides, and the holes 202 are connected to the mounting holes 3. There are multiple holes 202. A fixing plate 203 is installed inside each hole 202, and the fixing plate 203 is fixedly connected to the mounting plate 201. A rotating rod 204 is installed on the side of the fixing plate 203 near the hole 202. Round rods 205 are fixedly installed on both the front and back of the rotating rod 204. A pushing rod 206 is installed inside the hole 202, passing through the rotating rod 204. In the initial state, the pushing rod 206 is horizontal. It is pushed... The contact between rod 206 and threaded sleeve 4, and the continued downward movement of threaded sleeve 4, cause push rod 206 to rotate. Since push rod 206 passes through rotating rod 204, the rotation of push rod 206 causes rotating rod 204 to rotate, and the round rod 205 fixedly connected to rotating rod 204 rotates at the same time. The rotation of round rod 205 causes torsion spring 210 to deform, allowing push rod 206 to change from a horizontal state to a vertical state or an inclined state, so that push rod 206 enters hole 202, allowing threaded sleeve 4 to continue to move downward, so that threaded sleeve 4 merges with mounting hole 3, and threaded sleeve 4 is installed with mounting plate 201.

[0029] The push rod 206 has grooves 208 on both sides, and a connecting spring 209 is installed inside the grooves 208. The rotating rod 204 is slidably connected to the push rod 206 through the grooves 208. A limiting ball 207 is provided on both sides of the bottom end of the push rod 206. One end of the round rod 205 extends into the interior of the mounting plate 201 and is rotatably connected to the mounting plate 201. A torsion spring 210 is provided at the end of the round rod 205 away from the rotating rod 204. Connecting rods 211 are fixedly installed at both ends of the push rod 206. The limiting ball 207 is fixedly connected to the push rod 206 through the connecting rod 211. The top of the fixing plate 203 extends to the top of the mounting plate 201. The hole 202 is located at the top of the mounting hole 3. A notch 5 is provided on the top surface of the screw sleeve 4, which is connected to the mounting hole 3. The torsion spring 210 is located inside the mounting plate 201. The top of the fixing plate 203 is higher than the push rod 206. At the top of 06, when the screw sleeve 4 is fully installed in the mounting hole 3, the notch 5 on the surface of the screw sleeve 4 can be aligned with the hole 202. After alignment, the torsion spring 210 can automatically rotate the round rod 205, and the rotating rod 204 and the push rod 206 can automatically rotate, so that one end of the push rod 206 contacts the fixing plate 203. During the contact process, the push rod 206 continues to rotate and pushes the push rod 206 to move, so that the other end of the push rod 206 moves towards the mounting hole 3. Subsequently, the limiting ball 207 connected to the other end of the push rod 206 enters the notch 5. The limiting ball 207 is in contact with the screw sleeve 4. Because the other end of the push rod 206 is located in the notch 5, the screw sleeve 4 can be prevented from moving upward, thus automatically positioning the screw sleeve 4, reducing manual operation and improving work efficiency.

[0030] Please see Figure 2 A protrusion 212 is fixedly provided at the end of the round rod 205 away from the rotating rod 204. A limiting block 213 is provided on one side of the protrusion 212. When the push rod 206 is in a horizontal state, the protrusion 212 will contact the limiting block 213. The contact between the protrusion 212 and the limiting block 213 can only rotate clockwise, allowing the limiting ball 207 to enter the hole 202, which facilitates the positioning of the screw sleeve.

[0031] During operation, the downward movement of the screw sleeve 4 causes the push rod 206 and the rotating rod 204 to rotate, changing the push rod 206 from a horizontal state to a vertical or inclined state. This causes the torsion spring 210 to deform, facilitating subsequent operations. When the notch 5 and the hole 202 are aligned horizontally, the torsion spring 210 automatically causes the push rod 206 to rotate, moving the other end of the push rod 206 toward the mounting hole 3. Subsequently, the limiting ball 207 connected to the other end of the push rod 206 enters the notch 5, and the limiting ball 207 is in contact with the screw sleeve 4. With the other end of the push rod 206 located in the notch 5, the screw sleeve 4 is prevented from moving upward.

[0032] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. An electric machine cover with an automatic positioning screw sleeve, comprising an electric machine cover (1), characterized in that: The top surface of the motor cover (1) is embedded with a mounting mechanism (2), the top surface of the mounting mechanism (2) is provided with mounting holes (3), the number of the mounting holes (3) is multiple, the top of each mounting hole (3) is provided with a screw sleeve (4); The mounting mechanism (2) comprises a mounting plate (201), both sides of each mounting hole (3) are provided with a hole (202), the hole (202) is communicated with the connecting part of the mounting hole (3), the number of the hole (202) is multiple, the inside of each hole (202) is provided with a fixed plate (203), and the fixed plate (203) is fixedly connected with the mounting plate (201), one side of the fixed plate (203) close to the hole (202) is provided with a rotating rod (204), the front surface and the back surface of the rotating rod (204) are fixedly provided with a round rod (205), the inside of the hole (202) is provided with a push rod (206), and the push rod (206) penetrates through the rotating rod (204).

2. The motor cover with automatic positioning screw sleeve according to claim 1, characterized in that: The two side surfaces of the push rod (206) are provided with grooves (208), and the grooves (208) are provided with connecting springs (209).

3. The motor cover with automatic positioning screw sleeve according to claim 2, characterized in that: The rotating rod (204) is slidably connected with the push rod (206) through the grooves (208), and the bottom ends of the push rod (206) are provided with limiting balls (207).

4. The motor cover with automatic positioning screw sleeve according to claim 1, characterized in that: One end of the round rod (205) extends to the inside of the mounting plate (201) and is rotatably connected with the mounting plate (201), and the end, away from the rotating rod (204), of the round rod (205) is provided with a torsion spring (210).

5. The motor cover with automatic positioning screw sleeve according to claim 3, characterized in that: Both ends of the push rod (206) are fixedly provided with connecting rods (211), and the limiting balls (207) are fixedly connected with the push rod (206) through the connecting rods (211).

6. The motor cover with automatic positioning screw sleeve according to claim 1, characterized in that: The end, away from the rotating rod (204), of the round rod (205) is fixedly provided with a protruding block (212), and one side of the protruding block (212) is provided with a limiting block (213).

7. The motor cover with automatic positioning screw sleeve according to claim 1, characterized in that: The top end of the fixed plate (203) extends to the top of the mounting plate (201), and the hole (202) is located at the top of the mounting hole (3).

8. The motor cover with automatic positioning screw sleeve according to claim 1, characterized in that: The top surface of the screw sleeve (4) is provided with a notch (5), and the screw sleeve (4) is connected with the mounting hole (3).

9. The motor cover with an automatic positioning screw sleeve according to claim 4, characterized in that: The torsion spring (210) is located in the inside of the mounting plate (201), and the top end of the fixed plate (203) is higher than the top end of the push rod (206).

Citation Information

Patent Citations

  • A motor end cover

    CN105958697B

  • Servo motor end cover with positioning structure

    CN220325380U