High-corrosion-resistance screw

Abstract

The utility model discloses a high-corrosion-resistance screw, and belongs to the technical field of screws. Comprising a top plate, a pressure spring is fixedly arranged at the bottom end of the top plate and used for providing pressure for use of a screw body, a pressing base plate is fixedly arranged on the outer side of one end of the screw body, and a plurality of non-return claw teeth are fixedly arranged at the bottom end of the pressing base plate. The pressing base plate is used for preventing the screw body from rotating reversely through the non-return claw teeth, through the arrangement of the pressing base plate and the non-return claw teeth, when the screw body is fastened and used, the resistance borne by the non-return claw teeth is reduced, and if the screw body rotates reversely, the rotation resistance can be increased through the arrangement of the non-return claw teeth, and the screw body is prevented from loosening. Therefore, the object can be better fixed.

Description

Technical Field

[0001] The present application relates to the technical field of screws, and more specifically, to a highly corrosion-resistant screw. Background Art

[0002] Screws are a common fastener that is widely used in machinery, electrical appliances and buildings. They are generally made of metal or plastic, cylindrical in shape, and have concave and convex grooves on the surface called threads to facilitate entry into holes.

[0003] In the related art, screws are generally screwed into holes to fix objects. For example, the patent with the prior art publication number CN213360764U provides a wear-resistant and corrosion-resistant screw. The device is provided with a screw body, an epoxy coal tar anti-corrosion coating and a phenolic acid-resistant paint coating. With the cooperation of the epoxy coal tar anti-corrosion coating and the phenolic acid-resistant paint coating, the screw body has a double-layer corrosion protection capability, achieving the purpose of good corrosion resistance, and the screw body will fix the object.

[0004] Although the above-mentioned prior art solution can achieve the anti-corrosion and fixation effects through the setting of the screw body, epoxy coal tar anti-corrosion coating and phenolic acid-resistant paint coating, it still has the following defects: the screw is a traditional fixing method, and if vibration occurs around the screw, it may cause the screw to loosen, which is not conducive to the fixation of the object.

[0005] In view of this, we propose a high corrosion-resistant screw. Utility Model Content

[0006] The utility model provides a high corrosion-resistant screw, which solves the problem that in a traditional screw fixing method, if vibration is generated around the screw, the screw may become loose, which is not conducive to fixing an object.

[0007] To solve the above problems, the embodiment of the present application provides a highly corrosion-resistant screw, comprising a top plate, a pressure spring is fixedly provided at the bottom end of the top plate, and the pressure spring is used to provide pressure for the use of the screw body;

[0008] A pressing pad, the pressing pad is fixedly arranged on the outside of one end of the screw body, a plurality of anti-return claw teeth are fixedly arranged on the bottom end of the pressing pad, and the pressing pad is used to prevent the screw body from rotating in the reverse direction through the anti-return claw teeth;

[0009] A corrosion-resistant protective cover is arranged on the outside of the screw body, and is used to protect the screw body.

[0010] Furthermore, a fixed sleeve is provided on the inner side of the pressure spring, and the pressure spring and the fixed sleeve are fixedly arranged at the bottom end of the top plate, and a sliding guide rod is slidably provided on the inner side of the fixed sleeve, and a connecting plate is fixedly provided on the bottom end of the sliding guide rod, and the connecting plate is fixedly connected to the pressure plate through an auxiliary bolt, and the connecting plate is fixedly arranged at the other end of the pressure spring. The length between the sliding guide rod and the fixed sleeve will become longer as the screw head is used, so as to adapt to changes in the use state of the screw body.

[0011] Furthermore, a guide vertical rod is symmetrically fixedly provided at the bottom end of the top plate, an anti-skid plate is fixedly provided at the other end of the guide vertical rod, anti-skid grooves are provided at the bottom end of the anti-skid plate, and the guide vertical rod passes through and is slidably provided at the top end of the connecting plate.

[0012] Furthermore, a screw head is fixedly provided on the top of the pressing pad, the non-return claw teeth are arranged in an arc shape, and a rubber sleeve is provided on the outer side of the non-return claw teeth. When the screw body is tightened in use, the resistance encountered by the non-return claw teeth is reduced. If the screw body rotates in the opposite direction, the setting of the non-return claw teeth can increase the rotation resistance and prevent the screw body from loosening, thereby better fixing the object.

[0013] Furthermore, the interior of the corrosion-resistant protective cover is hollow, and a bottom panel is fixedly provided at the bottom end of the corrosion-resistant protective cover. The bottom panel is fixedly connected to the anti-slip plate by fastening bolts. The corrosion-resistant protective cover is made of PVC material. The corrosion-resistant protective cover can protect the screw body from air corrosion when it is not in use, and the corrosion-resistant protective cover can be removed when the screw body is in use.

[0014] Furthermore, the pressure spring is always in a compressed state, so that pressure can always be provided to the screw body, making its fixation more stable.

[0015] Furthermore, the exterior of the screw body is coated with epoxy resin coating, which has good adhesion and corrosion resistance and can provide effective protection.

[0016] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0017] 1. The present application provides a pressing pad and a non-return claw. When the screw body is tightened, the resistance of the non-return claw is reduced. If the screw body rotates in the opposite direction, the non-return claw can increase the rotation resistance and prevent the screw body from loosening, thereby better fixing the object.

[0018] 2. The present application provides a corrosion-resistant protective cover, which can protect the screw body from air corrosion when the screw body is not in use, and can be removed when the screw body is in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a highly corrosion-resistant screw disclosed in a preferred embodiment of the present application;

[0020] Figure 2 This is a schematic diagram of the main structure of a highly corrosion-resistant screw disclosed in a preferred embodiment of the present application;

[0021] Figure 3 This is a schematic diagram of a disassembled structure of a highly corrosion-resistant screw disclosed in a preferred embodiment of the present application;

[0022] Figure 4 This is a schematic diagram of the structure of a screw head, a screw body, a pressing pad and a non-return claw in a highly corrosion-resistant screw disclosed in a preferred embodiment of the present application;

[0023] Explanation of the numbers in the figure: 1. Top plate; 101. Guide vertical rod; 102. Anti-slip plate; 2. Pressure spring; 201. Fixed sleeve; 202. Sliding guide rod; 203. Connecting plate; 204. Auxiliary bolt; 3. Screw head; 301. Screw body; 302. Pressing pad; 3021. Check claw; 4. Bottom panel; 401. Fastening bolt; 402. Corrosion-resistant protective cover. DETAILED DESCRIPTION

[0024] The present application is further described in detail below in conjunction with the accompanying drawings.

[0025] Reference Figure 1 and Figure 2 A high corrosion-resistant screw comprises a top plate 1, a pressure spring 2 is fixedly arranged at the bottom end of the top plate 1, and the pressure spring 2 is used to provide pressure for the use of the screw body 301;

[0026] A pressing pad 302, which is fixedly disposed on the outer side of one end of the screw body 301, and a plurality of anti-return claw teeth 3021 are fixedly disposed on the bottom end of the pressing pad 302, and the pressing pad 302 is used to prevent the screw body 301 from rotating in the reverse direction through the anti-return claw teeth 3021;

[0027] The corrosion-resistant protective cover 402 is disposed on the outside of the screw body 301 , and is used to protect the screw body 301 .

[0028] By setting the pressing pad 302 and the non-return claw tooth 3021, when the screw body 301 is tightened in use, the resistance encountered by the non-return claw tooth 3021 is reduced. If the screw body 301 rotates in the opposite direction, the setting of the non-return claw tooth 3021 can increase the rotation resistance and prevent the screw body 301 from loosening, thereby better fixing the object. 402 can protect the screw body 301 from air corrosion when it is not in use, and the corrosion-resistant protective cover 402 can be removed when the screw body 301 is in use.

[0029] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 A fixed sleeve 201 is provided on the inner side of the pressure spring 2, and the pressure spring 2 and the fixed sleeve 201 are fixedly arranged at the bottom end of the top plate 1, and a sliding guide rod 202 is slidably provided on the inner side of the fixed sleeve 201, and a connecting plate 203 is fixedly provided at the bottom end of the sliding guide rod 202, and the connecting plate 203 is fixedly connected with the pressure pad 302 through an auxiliary bolt 204, and the connecting plate 203 is fixedly arranged at the other end of the pressure spring 2, and a guide vertical rod 101 is symmetrically fixedly provided at the bottom end of the top plate 1, and an anti-slip plate 102 is fixedly provided at the other end of the guide vertical rod 101, and anti-slip grooves are provided at the bottom end of the anti-slip plate 102, and the guide vertical rod 101 passes through and is slidably arranged at the top end of the connecting plate 203, and the pressure spring 2 is always in a compressed state, and the outside of the screw body 301 is coated with epoxy resin paint.

[0030] When the screw body 301 is screwed into the mounting hole, the pressure spring 2 will be slowly released and remain in a compressed state, and the anti-slip plate 102 will not rotate due to the anti-slip grooves at its bottom, which makes the pressure spring 2 more stable when in use. The length between the sliding guide rod 202 and the fixed sleeve 201 will become longer to adapt to changes in the use state of the screw body 301, and epoxy resin is coated on the outside of the screw body 301. The epoxy resin coating has good adhesion and corrosion resistance, and can provide effective protection.

[0031] Reference Figure 2 and Figure 4 A screw head 3 is fixedly provided on the top of the pressing pad 302 , the non-return claw tooth 3021 is arranged in an arc shape, and a rubber sleeve is provided on the outer side of the non-return claw tooth 3021 .

[0032] By rotating the screw head 3, the screw body 301 is screwed into the mounting hole. After being fixed, the rubber sleeve outside the non-return claw tooth 3021 contacts the object to be fixed. When the screw body 301 is tightened in use, the resistance encountered by the non-return claw tooth 3021 is reduced. If the screw body 301 rotates in the opposite direction, the setting of the non-return claw tooth 3021 can increase the rotation resistance and prevent the screw body 301 from loosening.

[0033] Reference Figure 1 and Figure 3 The interior of the corrosion-resistant protective cover 402 is hollow, and a bottom panel 4 is fixedly provided at the bottom end of the corrosion-resistant protective cover 402. The bottom panel 4 is fixedly connected to the anti-slip connecting plate 102 by fastening bolts 401. The corrosion-resistant protective cover 402 is made of PVC material.

[0034] The bottom panel 4 is fixed to the bottom end of the anti-slip plate 102 by using the fastening bolts 401, and the corrosion-resistant protective cover 402 is sleeved on the outside of the screw body 301, thereby preventing the screw body 301 from being corroded by air for a long time.

[0035] Working principle: When the screw body 301 is not in use, the bottom panel 4 is fixed to the bottom end of the anti-slip plate 102 using the fastening bolts 401, and the corrosion-resistant protective cover 402 is sleeved on the outside of the screw body 301 to prevent the screw body 301 from being corroded by air for a long time. The outside of the screw body 301 is coated with epoxy resin, and the epoxy resin coating has good adhesion and corrosion resistance, which can provide effective protection. When the screw body 301 is used, the fastening bolts 401 are removed, and the bottom panel 4 is removed to separate the corrosion-resistant protective cover 402 from the screw body 301, and then the auxiliary bolts 204 are removed to allow the pressing pad 302 to move freely, and then the screw body 301 is placed in the hole, and the screw head 3 is rotated to make the screw The main body 301 is screwed into the mounting hole. After being fixed, the rubber sleeve outside the non-return claw tooth 3021 contacts the object to be fixed. When the screw body 301 is tightened in use, the resistance encountered by the non-return claw tooth 3021 is reduced. If the screw body 301 rotates in the opposite direction, the setting of the non-return claw tooth 3021 can increase the rotation resistance and prevent the screw body 301 from loosening, thereby better fixing the object and preventing it from loosening due to vibration. At the same time, the pressure spring 2 will be slowly released and still in a compressed state, and the anti-slip plate 102 will not rotate due to the anti-slip grooves at its bottom end, which is used to make the pressure spring 2 more stable when in use, and the length between the sliding guide rod 202 and the fixing sleeve shell 201 will become longer to adapt to the changes in the use state of the screw body 301.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A highly corrosion-resistant screw, characterized in that: Include: A top plate (1), a pressure spring (2) being fixedly arranged at the bottom end of the top plate (1), the pressure spring (2) being used to provide pressure for the use of the screw body (301); A pressing pad (302), the pressing pad (302) being fixedly arranged on the outside of one end of the screw body (301), a plurality of anti-return claw teeth (3021) being fixedly arranged on the bottom end of the pressing pad (302), and the pressing pad (302) is used to prevent the screw body (301) from rotating in the reverse direction through the anti-return claw teeth (3021); A corrosion-resistant protective cover (402) is arranged on the outside of the screw body (301), and the corrosion-resistant protective cover (402) is used to protect the screw body (301).

2. The highly corrosion-resistant screw according to claim 1, characterized in that: A fixed sleeve (201) is arranged on the inner side of the pressure spring (2); the pressure spring (2) and the fixed sleeve (201) are fixedly arranged at the bottom end of the top plate (1); a sliding guide rod (202) is slidably arranged on the inner side of the fixed sleeve (201); a connecting plate (203) is fixedly arranged at the bottom end of the sliding guide rod (202); the connecting plate (203) is fixedly connected to the pressure pad (302) via an auxiliary bolt (204); and the connecting plate (203) is fixedly arranged at the other end of the pressure spring (2).

3. The highly corrosion-resistant screw according to claim 1, characterized in that: A guide vertical rod (101) is symmetrically fixedly arranged at the bottom end of the top plate (1), an anti-skid plate (102) is fixedly arranged at the other end of the guide vertical rod (101), and an anti-skid pattern is arranged at the bottom end of the anti-skid plate (102). The guide vertical rod (101) penetrates and is slidably arranged at the top end of the connecting plate (203).

4. The highly corrosion-resistant screw according to claim 2, characterized in that: A screw head (3) is fixedly provided at the top end of the pressing pad (302), the anti-return claw teeth (3021) are arranged in an arc shape, and a rubber sleeve is sleeved on the outer side of the anti-return claw teeth (3021).

5. The highly corrosion-resistant screw according to claim 1, characterized in that: The interior of the corrosion-resistant protective cover (402) is hollow, a bottom panel (4) is fixedly provided at the bottom end of the corrosion-resistant protective cover (402), the bottom panel (4) is fixedly connected to the anti-slip plate (102) via fastening bolts (401), and the corrosion-resistant protective cover (402) is made of PVC material.

6. The highly corrosion-resistant screw according to claim 2, characterized in that: The pressure spring (2) is always in a compressed state.

7. The highly corrosion-resistant screw according to claim 2, characterized in that: The exterior of the screw body (301) is coated with epoxy resin paint.

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