Guard gear with anti-rotation

By designing protective gears, reverse gear rotation is prevented, thus solving the safety accidents and equipment damage caused by gear reversal, enhancing lubrication, and extending the service life of the equipment.

CN120042904BActive Publication Date: 2026-03-31李鹏
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing gears are prone to damage when reversed, leading to safety accidents and equipment damage, and their lubrication effect is poor.

Method used

A protective gear is designed, comprising a protective ring plate, a rotating ring, a drive cylinder, a ratchet block, and a limiting component. The design of the ratchet block and ratchet prevents reverse rotation, and when the gear rotates in the opposite direction, lubricating oil is thrown out to lubricate the surface of the ratchet.

Benefits of technology

It effectively prevents gears from rotating in the opposite direction, reduces safety accidents and equipment damage, extends equipment life, improves lubrication, and reduces wear and maintenance costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120042904B_ABST
    Figure CN120042904B_ABST
Patent Text Reader

Abstract

The application discloses a protective gear with reverse rotation prevention function, which comprises a gear body and a protection assembly. The protection assembly comprises a protection ring plate, which is fixedly connected to the middle part of the front and back surfaces of the gear body. A rotating ring is rotatably connected to the inner wall of the protection ring plate. A driving cylinder is fixedly connected to the side of the rotating ring, which is away from the protection ring plate. A rotating circular groove is formed in the middle part of the gear body, which is through the front and back surfaces. A ratchet is fixedly connected in the rotating circular groove. The rotating circular groove in the gear body is protected by the protection ring plate. The gear body has the function of preventing reverse rotation. In many mechanical devices, such as airplanes, cars, ships and industrial equipment, the reverse rotation of the gear may cause serious safety accidents. The function of preventing reverse rotation can ensure the safety of these devices during operation and reduce the danger caused by the reverse rotation of the gear.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of gear technology, specifically to a protective gear that prevents reverse rotation. Background Technology

[0002] A protective gear is a specially designed gear whose main purpose is to provide extra protection during gear transmission to prevent impact or damage from external objects. It may also be used to reduce noise and vibration during gear operation. A protective gear is a gear with a special protective structure that prevents impact and damage from external objects by adding an extra protective layer or design.

[0003] Chinese patent application CN104071471A discloses a gear protection device. Although this application achieves the goal of placing all gears inside the protective device, preventing collisions and dust, and fixing the gears relatively stably to prevent them from accidentally detaching from the protective device, thus ensuring high safety, avoiding rework, reducing scrap rate, and improving production efficiency, when put into use, the gears are prone to damage when they reverse because the gears cannot perform the reverse protection function. This problem needs to be addressed. Summary of the Invention

[0004] The purpose of this invention is to provide a protective gear that prevents reverse rotation, thereby solving the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a protective gear for preventing reverse rotation, comprising a gear body and a protective component.

[0006] The protective components include:

[0007] The protective ring plate is fixedly connected to the middle of the front and back sides of the gear body. A rotating ring is rotatably connected to the inner wall of the protective ring plate. A drive cylinder is fixedly connected to the side of the rotating ring away from the protective ring plate. A rotating circular groove that runs through the front and back is opened in the middle of the gear body. A ratchet is fixedly connected in the rotating circular groove. By setting the protective ring plate, the rotating circular groove inside the gear body can be protected.

[0008] According to the above technical solution, it also includes a driven component, which consists of a storage slot, a positioning frame, a ratchet block, and an extension block.

[0009] The storage slot is formed on the outer wall of the drive cylinder. The positioning frame is fixedly connected to the outside of the drive cylinder and located on the front and rear sides of the storage slot. The ratchet block is rotatably connected to the middle of the positioning frame. The extension block is fixedly connected to the bottom of the ratchet block. The ratchet block can rotate in the middle of the positioning frame.

[0010] According to the above technical solution, it also includes a limiting component, which consists of a rotating sleeve, a rotating insert, an adjusting plate, a limiting plate one, and a limiting plate two.

[0011] The rotating sleeve is disposed inside the drive cylinder, the rotating insert is fixedly connected to the outside of the rotating sleeve, the adjusting plate is fixedly connected to the front and back right sides of the rotating insert, the first limiting plate is fixedly connected to the inner wall of the drive cylinder, and the second limiting plate is fixedly connected to the inner wall of the drive cylinder and located on the front and back sides of the receiving slot. The first limiting plate and the second limiting plate can limit the adjustment plate.

[0012] According to the above technical solution, a sliding groove is provided inside the rotating ring, and the rotating ring is slidably connected to the protective ring plate through the sliding groove, so that the rotating ring can rotate inside the protective ring plate.

[0013] According to the above technical solution, the front and back sides of the extension block are fixedly connected to a limiting arc plate, which, in conjunction with the extension block, can limit the ratchet block and the extension block.

[0014] According to the above technical solution, both the ratchet block and the extension block are located inside the receiving groove, and the ratchet block and the extension block can rotate within the receiving groove.

[0015] According to the above technical solution, the outer side of the ratchet block is provided with lubricating oil, which can be splashed onto the surface of the rotating sleeve when the ratchet block rotates.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0017] 1. By setting the gear body to have the function of preventing reverse rotation, in many mechanical equipment, such as airplanes, automobiles, ships and industrial equipment, the reverse rotation of gears may lead to serious safety accidents. The function of preventing reverse rotation can ensure that these equipment are safer to operate and reduce the dangers caused by the reverse rotation of gears.

[0018] 2. The reverse rotation of the rotating sleeve inside the gear body can prevent the gear body from rotating in the opposite direction. The reverse rotation of the gear body may damage the transmission system of the equipment, such as gear wear and bearing damage. The function of preventing reverse rotation can reduce these damages, extend the service life of the equipment, and reduce maintenance costs.

[0019] 3. When the rotating sleeve rotates freely inside the drive cylinder, it can cause the lubricating oil on the outside of the ratchet block to be thrown out and onto the surface of the ratchet. When the ratchet block rotates in the opposite direction, the lubricating oil is effectively thrown onto the surface of the ratchet. This enhances the lubrication effect between the ratchet teeth. The presence of lubricating oil can reduce the friction coefficient between the ratchet teeth, reduce wear, and help the gear body transmission to proceed smoothly.

[0020] 4. When the gear body rotates in the opposite direction, the ratchet block will not contact the ratchet teeth, and the rotating sleeve will push the drive cylinder to rotate freely inside the gear body. This can prevent the ratchet block from colliding with the ratchet teeth, reduce the wear between the ratchet block and the ratchet teeth, and ensure the service life of the ratchet block and the ratchet teeth. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of an explosion at the protective ring plate of the present invention;

[0024] Figure 3 This is a schematic diagram of an explosion at the drive cylinder of the present invention;

[0025] Figure 4 This is a schematic diagram of the ratchet tooth of the present invention;

[0026] Figure 5 This is a schematic diagram of the extension block of the present invention;

[0027] Figure 6 yes Figure 5 Enlarged view of point A in the middle;

[0028] Figure 7 This is an exploded view of the rotating insert of the present invention;

[0029] Figure 8 This is a schematic diagram of a limiting plate of the present invention.

[0030] In the diagram: 1. Gear body; 2. Protective assembly; 201. Protective ring plate; 202. Rotating ring; 203. Drive cylinder; 204. Ratchet; 3. Driven assembly; 301. Storage slot; 302. Positioning frame; 303. Ratchet block; 304. Extension block; 4. Limiting assembly; 401. Rotating sleeve; 402. Rotating insert; 403. Adjusting plate; 404. Limiting plate one; 405. Limiting plate two. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0032] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0033] Example 1, please refer to Figure 1-4 The present invention provides a technical solution: a protective gear that prevents reverse rotation, comprising a gear body 1 and a protective component 2.

[0034] Among them, protective component 2 includes:

[0035] A protective ring plate 201 is fixedly connected to the middle of the front and back sides of the gear body 1. A rotating ring 202 is rotatably connected to the inner wall of the protective ring plate 201. A drive cylinder 203 is fixedly connected to the side of the rotating ring 202 away from the protective ring plate 201. A rotating circular groove that runs through the front and back is opened in the middle of the gear body 1. A ratchet 204 is fixedly connected in the rotating circular groove. By setting the protective ring plate 201, the rotating circular groove inside the gear body 1 can be protected.

[0036] The rotating ring 202 is provided with a sliding groove, and the rotating ring 202 is slidably connected to the protective ring plate 201 through the sliding groove, so that the rotating ring 202 can rotate within the protective ring plate 201.

[0037] By setting the gear body 1 to have the function of preventing reverse rotation, in many mechanical devices, such as airplanes, automobiles, ships and industrial equipment, the reverse rotation of gears may lead to serious safety accidents. The function of preventing reverse rotation can ensure that these devices are safer to operate and reduce the dangers caused by the reverse rotation of gears.

[0038] Example 2, please refer to Figure 1-8 Based on Embodiment 1, the present invention provides a technical solution that further includes a driven component 3, which is composed of a storage groove 301, a positioning frame 302, a ratchet block 303, and an extension block 304.

[0039] The storage slot 301 is formed on the outer wall of the drive cylinder 203. The positioning frame 302 is fixedly connected to the outside of the drive cylinder 203 and is located on the front and rear sides of the storage slot 301. The ratchet block 303 is rotatably connected to the middle of the positioning frame 302. The extension block 304 is fixedly connected to the bottom of the ratchet block 303. The ratchet block 303 can rotate in the middle of the positioning frame 302.

[0040] It also includes a limiting component 4, which consists of a rotating sleeve 401, a rotating insert 402, an adjusting plate 403, a first limiting plate 404, and a second limiting plate 405.

[0041] The rotating sleeve 401 is located inside the drive cylinder 203. The rotating insert 402 is fixedly connected to the outside of the rotating sleeve 401. The adjusting plate 403 is fixedly connected to the front and back right sides of the rotating insert 402. The first limiting plate 404 is fixedly connected to the inner wall of the drive cylinder 203. The second limiting plate 405 is fixedly connected to the inner wall of the drive cylinder 203 and is located on the front and back sides of the receiving slot 301. The first limiting plate 404 and the second limiting plate 405 can limit the adjusting plate 403.

[0042] The extension block 304 is fixedly connected to the front and back of the limiting arc plate. The limiting arc plate and the extension block 304 cooperate to limit the ratchet block 303 and the extension block 304.

[0043] Both the ratchet block 303 and the extension block 304 are located inside the storage slot 301, and the ratchet block 303 and the extension block 304 can rotate within the storage slot 301.

[0044] Lubricating oil is provided on the outer side of the ratchet block 303, which can be splashed onto the surface of the rotating sleeve 401 when the ratchet block 303 rotates.

[0045] When the device needs to rotate normally, the external rotating rod is inserted into the rotating sleeve 401, causing the rotating sleeve 401 to rotate. As the rotating sleeve 401 rotates, the rotating insert 402 and the adjusting plate 403 on the rotating sleeve 401 rotate synchronously. When the adjusting plate 403 rotates, the rotating insert 402 rotates to the underside of the extension block 304, causing the rotating insert 402 to arch the extension block 304 upwards. At this time, the ratchet block 303 rotates upwards within the receiving groove 301 about the positioning frame 302, rotating the extension block 304. The limiting arc plate on the extension block 304 is then engaged under the receiving groove 301, allowing the extension block to rotate. Block 304 and ratchet block 303 are limited, and at the same time, ratchet block 303 rotates to the outside of drive cylinder 203. The adjusting plate 403 on the rotating insert 402 contacts the second limiting plate 405. Then, the rotating sleeve 401 continues to rotate, which enables the adjusting plate 403 on the rotating insert 402 to press the second limiting plate 405 and push the second limiting plate 405. At this time, the rotating sleeve 401, drive cylinder 203 and ratchet block 303 rotate synchronously, so that ratchet block 303 is inserted into the ratchet 204 in the gear body 1 and pushes the ratchet 204 to rotate, which enables the gear body 1 to rotate.

[0046] When the rotating sleeve 401 reverses, the rotating insert 402 and the adjusting plate 403 on the rotating sleeve 401 can rotate synchronously in the opposite direction. At this time, the rotating insert 402 moves out from under the ratchet block 303. The ratchet block 303 and the extension block 304 automatically fall back into the storage groove 301. At the same time, the rotating insert 402 and the adjusting plate 403 on the rotating sleeve 401 rotate synchronously, so that the adjusting plate 403 contacts the limiting plate 404 and the limiting plate 404 limits the adjusting plate 403. At the same time, the rotating sleeve 401 pushes the drive cylinder 203 to rotate in the opposite direction. Since the ratchet block 303 and the extension block 304 are stored inside the drive cylinder 203, when the rotating sleeve 401 rotates in the opposite direction, the ratchet block 303 will not contact the ratchet 204, and the rotating sleeve 401 pushes the drive cylinder 203 to rotate freely inside the gear body 1, avoiding the gear body 1 from reversing.

[0047] When the rotating sleeve 401 rotates freely inside the drive cylinder 203, it can cause the lubricating oil on the outside of the ratchet block 303 to be thrown out and onto the surface of the ratchet 204, thus enabling it to have an automatic lubrication and maintenance function.

[0048] The reverse rotation of the rotating sleeve 401 inside the gear body 1 can prevent the gear body 1 from rotating in reverse. The reverse rotation of the gear body 1 may damage the transmission system of the equipment, such as gear wear and bearing damage. The function of preventing reverse rotation can reduce these damages, extend the service life of the equipment, and reduce maintenance costs.

[0049] When the rotating sleeve 401 rotates freely inside the drive cylinder 203, it can cause the lubricating oil on the outside of the ratchet block 303 to be thrown out and onto the surface of the ratchet 204. When the ratchet block 303 rotates in the opposite direction, the lubricating oil is effectively thrown onto the surface of the ratchet 204, which enhances the lubrication effect between the ratchet 204. The presence of lubricating oil can reduce the coefficient of friction between the ratchet 204, reduce wear, and help the gear body 1 to drive smoothly.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. Guarded gear with anti-rotation protection comprising a gear body (1), characterized in that: Also include protection components (2); Wherein, the protection components (2) include: Protection ring plate (201), protection ring plate (201) is fixedly connected to the middle part of the front and back of the gear body (1), the inner wall of the protection ring plate (201) is rotatably connected with the rotating ring (202), the side away from the protection ring plate (201) of the rotating ring (202) is fixedly connected with the driving cylinder (203), the middle part of the gear body (1) is provided with a front and back through rotating circular groove, the rotating circular groove is fixedly connected with the ratchet (204), by setting the protection ring plate (201), the rotating circular groove inside the gear body (1) can be protected; Also include driven assembly (3), the driven assembly (3) is composed of receiving groove (301), positioning frame (302), ratchet block (303) and extension block (304); The receiving groove (301) is provided on the outer wall of the driving cylinder (203), the positioning frame (302) is fixedly connected to the outer side of the driving cylinder (203), and is located on the front and back sides of the receiving groove (301), the ratchet block (303) is rotatably connected to the middle part of the positioning frame (302), the extension block (304) is fixedly connected to the bottom of the ratchet block (303), and the ratchet block (303) can rotate in the middle part of the positioning frame (302); Also include limiting assembly (4), the limiting assembly (4) is composed of rotating sleeve (401), rotating plug (402), adjusting plate (403), limiting plate one (404) and limiting plate two (405); The rotating sleeve (401) is arranged in the driving cylinder (203), the rotating plug (402) is fixedly connected to the outer side of the rotating sleeve (401), the adjusting plate (403) is fixedly connected to the front and back right sides of the rotating plug (402), the limiting plate one (404) is fixedly connected to the inner wall of the driving cylinder (203), the limiting plate two (405) is fixedly connected to the inner wall of the driving cylinder (203), and is located on the front and back sides of the receiving groove (301), the limiting plate one (404) and the limiting plate two (405) can limit the adjusting plate (403); The rotating ring (202) is provided with a sliding groove, the rotating ring (202) is slidably connected with the protection ring plate (201) through the sliding groove, and the rotating ring (202) can rotate in the protection ring plate (201); The front and back of the extension block (304) are fixedly connected with limiting arc plates, and the limiting arc plates and the extension block (304) can limit the ratchet block (303) and the extension block (304).

2. The guard gear with reverse rotation prevention according to claim 1, characterized in that: The ratchet block (303) and the extension block (304) are located in the receiving groove (301), and the ratchet block (303) and the extension block (304) can rotate in the receiving groove (301).

3. The guard gear with reverse rotation prevention according to claim 2, characterized in that: The outer side of the ratchet block (303) is provided with lubricating oil, which can be shaken to the surface of the rotating sleeve (401) when the ratchet block (303) rotates.

Citation Information

Patent Citations

  • Gear protection device

    CN104071471A

  • Gear ratchet clutch

    CN221824329U