Protection device for external thread

Abstract

The utility model provides an external thread protection device which comprises a thread male protection cap and a thread female protection cap which are meshed with each other, convex teeth are arranged on the inner side of the thread male protection cap, concave teeth are arranged on the outer side of the thread female protection cap, and the convex teeth and the concave teeth are meshed with each other. Openings are formed in one side of the male threaded protective cap and one side of the female threaded protective cap, and a connecting rope is arranged between the openings, so that the male threaded protective cap and the female threaded protective cap are fixed to a workpiece. The external thread protection device not only improves the fixing effect and the vibration resistance, but also enhances the use convenience and adaptability. The design is particularly suitable for various occasions where thread structures need to be protected, and is an efficient and reliable solution.

Description

Technical Field

[0001] The utility model relates to the field of protection devices, and particularly relates to a protection device for external threads. Background Art

[0002] For various series of long shaft products in the factory, there are external thread processing features. The thread distributions are at both ends or in the middle position, and the external thread features need to be coated. The conventional thread protection cap is a screwed fit of internal and external threads. The installation and disassembly are troublesome, and it is easy to cause the coating of the finished workpiece to fall off. For the threads in the middle position of the workpiece, the conventional thread protection cap needs to be repeatedly hoisted to be installed and screwed in, which is very troublesome and there is a certain safety risk in the repeated hoisting. Summary of the Utility Model

[0003] The main purpose of the utility model is to provide a protection device for external threads to solve the problems in the above background art.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is: it includes a male thread protection cap and a female thread protection cap that mesh with each other. The inner side of the male thread protection cap is provided with convex teeth, and the outer side of the female thread protection cap is provided with concave teeth. The convex teeth and the concave teeth mesh with each other.

[0005] One side of the male thread protection cap and the female thread protection cap is provided with an opening, and a connecting rope is arranged between the openings, so as to fix the male thread protection cap and the female thread protection cap on the workpiece.

[0006] Preferably, a second retaining ring is fixedly arranged at the end of the female thread protection cap, and a first retaining ring is fixedly arranged at the end of the male thread protection cap. The first retaining ring abuts against one end of the external thread on the workpiece, and the second retaining ring abuts against the other end of the external thread.

[0007] Preferably, locking posts are fixedly arranged at both ends of the opening of the male thread protection cap and the female thread protection cap, and both ends of the connecting rope are fixed on the locking posts.

[0008] Preferably, locking grooves are arranged at both ends of the opening of the male thread protection cap and the female thread protection cap, and both ends of the connecting rope are fixed in the locking grooves.

[0009] Preferably, the connecting rope is an elastic rubber band.

[0010] Preferably, the male thread protection cap overlaps and covers the outside of the female thread protection cap, and its convex teeth and concave teeth are meshed and connected for self-locking. By adjusting the opening degree between the male thread protection cap and the female thread protection cap, the length of the external thread on the covered workpiece can be adapted.

[0011] The utility model provides a protection device for external threads, and the beneficial effects are:

[0012] 1. Through the self-locking function of the convex teeth and concave teeth, combined with the elastic fixation of the rubber band, it is ensured that the male thread protective cap and the female thread protective cap will not become loose during use. The elasticity of the rubber band can absorb a certain amount of vibration energy, improve the anti-vibration performance of the device, and reduce loosening caused by vibration.

[0013] 2. The male thread protective cap and the female thread protective cap can be easily put on the workpiece, and then the rubber band can be put on the locking post. The operation is simple and fast. The rubber band can be used multiple times, which is economical, environmentally friendly, and easy to disassemble, facilitating cleaning and maintenance.

[0014] 3. By adjusting the opening degree between the male thread protective cap and the female thread protective cap, it can adapt to external threads of different lengths, increasing the application range of the device. The ring-shaped design and the fixation method of the rubber band make this protective device applicable to workpieces of different diameters and lengths, with a wide application range.

[0015] 4. Locking posts are fixedly arranged at both ends of the opening of the male thread protective cap and the female thread protective cap as the fixing points of the rubber band, enhancing the structural strength at both ends of the opening and preventing the opening from deforming or being damaged due to external forces. The first retaining ring and the second retaining ring respectively abut against both ends of the external thread to ensure that the protective device will not slide axially, further enhancing the fixing effect.

[0016] 5. This device has a simple structure, low material cost, and can be reused, with high economy. It is convenient to disassemble and clean, reducing the maintenance cost and time. Through comprehensive coverage and sealing, it effectively prevents the external thread from being damaged during handling, storage, and use, improving the safety of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following further describes the present utility model in conjunction with the drawings and embodiments:

[0018] Figure 1 is the front view of the overall installation and use of the present utility model;

[0019] Figure 2 is the side view of the protective device of the present utility model;

[0020] Figure 3 is the present utility model Figure 1 partial front sectional view;

[0021] Figure 4 is the present utility model Figure 2 partial enlarged view of the locking post;

[0022] Figure 5 is the present utility model Figure 2 schematic diagram of the connection of another structure locking groove;

[0023] In the figure: workpiece 1; external thread 101; male thread protective cap 2; convex teeth 201; first retaining ring 202; female thread protective cap 3; concave teeth 301; second retaining ring 302; locking post 4; connecting rope 5; locking groove 6. Specific implementation

[0024] As Figures 1 - 5 shown, a protection device for an external thread includes a male thread protective cap 2 and a female thread protective cap 3 that mesh with each other. The inner side of the male thread protective cap 2 is provided with convex teeth 201, and the outer side of the female thread protective cap 3 is provided with concave teeth 301. The convex teeth 201 and the concave teeth 301 mesh with each other;

[0025] One side of the male thread protective cap 2 and the female thread protective cap 3 is provided with an opening, and a connecting rope 5 is arranged between the openings, so as to fix the male thread protective cap 2 and the female thread protective cap 3 on the workpiece 1. According to the length of the external thread 101 on the workpiece 1, the meshing length of the convex teeth 201 and the concave teeth 301 on the male thread protective cap 2 and the female thread protective cap 3 is adjusted, so that the male thread protective cap 2 and the female thread protective cap 3 can be adaptively adjusted according to the length of the external thread 101, and can be reused with a wide application range; the male thread protective cap 2 and the female thread protective cap 3 are meshed with each other through the convex teeth 201 and the concave teeth 301 so as to be locked with each other. The male thread protective cap 2 and the female thread protective cap 3 are sleeved on the workpiece 1 through the opening and the two ends of the opening are fixed through the connecting rope 5, so that the male thread protective cap 2 and the female thread protective cap 3 are fixedly covered at the position of the external thread 101 on the workpiece 1, so as to protect it.

[0026] The male thread protective cap 2 and the female thread protective cap 3 are made of nylon material or PE material, and can be deformed through the opening, so as to be clamped on the workpiece 1, which is convenient for installation and reuse.

[0027] Since the male thread protective cap and the female thread protective cap can be adjusted by different meshing degrees of the convex teeth and the concave teeth, different lengths of external threads can be adapted, which increases the applicability and flexibility of the device. It is fixed by physical means, so this protection device can be disassembled and used again, which is very useful for scenarios that require frequent replacement or adjustment.

[0028] The design of the male thread protective cap and the female thread protective cap can tightly wrap the external thread, prevent external factors such as dust and moisture from damaging the external thread, and also avoid damage caused by collision during handling or storage. Through the opening design and the use of the connecting rope, users can easily install the protection device on the workpiece or remove it from the workpiece without additional tools, improving work efficiency.

[0029] Preferably, a second retaining ring 302 is fixedly provided at the end of the female thread cap 3, and a first retaining ring 202 is fixedly provided at the end of the male thread cap 2. The first retaining ring 202 abuts against one end of the external thread 101 on the workpiece 1, and the second retaining ring 302 abuts against the other end of the external thread 101. The cross-sections of the female thread cap 3 and the male thread cap 2 are L-shaped rings, and the first retaining ring 202 and the second retaining ring 302 at the ends of the female thread cap 3 and the male thread cap 2 are located at both ends after combination. The first retaining ring 202 and the second retaining ring 302 respectively abut against both ends of the external thread 101 on the workpiece 1, so that the female thread cap 3 and the male thread cap 2 can be clamped on the external thread 101 for fixation.

[0030] The first retaining ring 202 and the second retaining ring 302 respectively abut against both ends of the external thread 101, which can ensure that the male thread cap 2 and the female thread cap 3 will not slide axially, so as to be more firmly fixed on the external thread. The cross-sections of the female thread cap 3 and the male thread cap 2 are L-shaped rings. This design not only provides enough space to accommodate the external thread, but also further enhances the fixing effect through the retaining rings.

[0031] The design of the first retaining ring 202 and the second retaining ring 302 ensures that both ends of the external thread are completely covered, preventing external contaminants from entering or damaging the external thread. The design of the retaining ring can effectively block external factors such as dust and moisture, further enhancing the protection effect.

[0032] Preferably, locking posts 4 are fixedly provided at both open ends of the male thread cap 2 and the female thread cap 3. Both ends of the connecting rope 5 are fixed to the locking posts 4. The male thread cap 2 and the female thread cap 3 are annular, with an opening at one end, and locking posts 4 are installed at both open ends. The connecting rope 5 connects the locking posts 4 at both open ends, thereby fixing the male thread cap 2 and the female thread cap 3 on the workpiece 1.

[0033] Preferably, locking grooves 6 are provided at both open ends of the male thread cap 2 and the female thread cap 3. Both ends of the connecting rope 5 are fixed in the locking grooves 6. Another structure is that the connecting rope 5 is connected to the locking grooves 6 at both open ends, avoiding protrusions on the outside of the male thread cap 2 and the female thread cap 3 that may affect transportation and collision.

[0034] Through the double fixation of the locking posts 4 or the locking grooves 6 and the connecting rope 5, it is ensured that the male thread cap 2 and the female thread cap 3 are firmly fixed on the workpiece 1, preventing loosening during handling or use. The fastening effect of the connecting rope 5 can reduce the impact of vibration on the protection device and improve the anti-vibration performance of the device.

[0035] Preferably, the connecting rope 5 is an elastic rubber band. The elasticity of the rubber band can ensure that both open ends of the male thread cap 2 and the female thread cap 3 are always in a tightened state, preventing loosening during handling or use. The elasticity of the rubber band can absorb a certain amount of vibration energy, improve the anti-vibration performance of the device, and reduce loosening caused by vibration.

[0036] Preferably, the male thread protective cap 2 overlaps and covers the outside of the female thread protective cap 3, and its convex teeth 201 are engaged with the concave teeth 301 to connect and lock self-locked. By adjusting the opening degree between the male thread protective cap 2 and the female thread protective cap 3, the length of the external thread 101 on the covered workpiece 1 can be adapted.

[0037] After the workpiece 1 is processed, the external thread 101 on the workpiece 1 is effectively protected by the male thread protective cap 2 and the female thread protective cap 3. At the same time, a thin film is coated on the outside thereof to avoid damage to the external thread 101 caused by hoisting bumps during transportation.

[0038] The above embodiments are only the preferred technical solutions of the present invention, and should not be regarded as a limitation to the present invention. The protection scope of the present invention should be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, the equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A protection device for external threads, characterized in that: It includes a male threaded protective cap (2) and a female threaded protective cap (3) that mesh with each other. The inner side of the male threaded protective cap (2) is provided with convex teeth (201), and the outer side of the female threaded protective cap (3) is provided with concave teeth (301). The convex teeth (201) and the concave teeth (301) mesh with each other. One side of the male threaded protective cap (2) and the female threaded protective cap (3) is provided with an opening, and a connecting rope (5) is arranged between the openings, so as to fix the male threaded protective cap (2) and the female threaded protective cap (3) on the workpiece (1).

2. The protection device for an external thread according to claim 1, wherein: A second retaining ring (302) is fixedly arranged at the end of the female threaded protective cap (3), and a first retaining ring (202) is fixedly arranged at the end of the male threaded protective cap (2). The first retaining ring (202) abuts against one end of the external thread (101) on the workpiece (1), and the second retaining ring (302) abuts against the other end of the external thread (101).

3. The protection device for an external thread according to claim 1, characterized in that: Locking posts (4) are fixedly arranged at both ends of the openings of the male threaded protective cap (2) and the female threaded protective cap (3), and both ends of the connecting rope (5) are fixed on the locking posts (4).

4. The protection device for an external thread according to claim 1, characterized in that: Locking grooves (6) are arranged at both ends of the openings of the male threaded protective cap (2) and the female threaded protective cap (3), and both ends of the connecting rope (5) are fixed in the locking grooves (6).

5. The protective device for an external thread according to any one of claims 1, 3 or 4, characterized in that: The connecting rope (5) is an elastic rubber band.

6. The protection device for an external thread according to claim 1, characterized in that: The male threaded protective cap (2) overlaps and covers the outside of the female threaded protective cap (3), and its convex teeth (201) and concave teeth (301) are meshed and connected for self-locking. By adjusting the opening degree between the male threaded protective cap (2) and the female threaded protective cap (3), the length of the external thread (101) on the covered workpiece (1) can be adapted.

Images