A bolt corrosion prevention device

Abstract

The utility model discloses a kind of bolt anticorrosive devices, it relates to bolt technical field, including pedestal, the middle part sliding of the pedestal is inserted with screw rod, the peripheral surface of the screw rod is threadedly connected with nut, the nut rotation is arranged on the top surface of pedestal, the top surface of the pedestal is provided with protective sleeve, the screw rod and nut are all arranged in protective sleeve, the inside of the protective sleeve is also provided with anticorrosive layer, the top end inner wall of the protective sleeve is opened with multiple vertical sliding slots along axial direction.This utility model by using the anticorrosive layer arranged in protective sleeve, played the effect that screw rod and nut arranged in protective sleeve can be isolated with air, thereby improve the effect of protecting screw rod and nut, try to avoid the corrosion of screw rod and nut due to environmental reasons, thereby the situation that the normal use of screw rod and nut is affected occurs, improve the service life and practicality of entire bolt.

Description

Technical Field

[0001] This utility model relates to the field of bolt technology, specifically to a bolt anti-corrosion device. Background Technology

[0002] A bolt is a fastener consisting of a head and a shank (a cylinder with external threads), which is used to mechanically connect and fix two or more parts by mating with a nut or by directly screwing it into a part with internal threads.

[0003] Existing bolts generally suffer from poor corrosion resistance. Therefore, when exposed to environmental factors, bolts are easily corroded after prolonged use, affecting their normal use and reducing their service life. While current technologies use anti-corrosion layers to isolate the bolts from the air, this isolation effect gradually deteriorates over time, necessitating replacement. However, existing anti-corrosion layers are inconvenient to quickly remove and replace, further reducing the overall practicality of the bolt. Utility Model Content

[0004] The purpose of this invention is to provide a bolt anti-corrosion device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bolt anti-corrosion device, including a base, a screw slidably inserted in the middle of the base, a nut threadedly connected to the circumferential surface of the screw, the nut being rotatably disposed on the top surface of the base, a protective sleeve being disposed on the top surface of the base, the screw and the nut being disposed inside the protective sleeve, and an anti-corrosion layer being disposed inside the protective sleeve.

[0006] The aforementioned components achieve the following effect: by utilizing the anti-corrosion layer set inside the protective sleeve, the screw and nut set inside the protective sleeve are isolated from the air, thereby improving the protection of the screw and nut and minimizing the possibility of corrosion of the screw and nut due to environmental factors, which would affect the normal use of the screw and nut, thus increasing the service life and practicality of the entire bolt.

[0007] Preferably, the top inner wall of the protective sleeve is provided with a plurality of vertical grooves along the axial direction, and a connecting block is slidably arranged inside each of the plurality of vertical grooves. The anti-corrosion layer is fixedly installed on the top surface of the plurality of connecting blocks, and a plurality of support plates are fixedly installed on the inner wall of the protective sleeve, with the connecting blocks arranged on the support plates.

[0008] The aforementioned components achieve the following effects: by utilizing the vertical sliding grooves on the inner wall of the protective sleeve, the sliding direction of the connecting block is restricted, thereby facilitating the quick assembly of the anti-corrosion layer into the protective sleeve and protecting the screw and nut. Furthermore, by utilizing the support block, the connecting block is supported, thereby improving the stability of the anti-corrosion layer inside the protective sleeve.

[0009] Preferably, the support plate has a through groove, a locking block is slidably disposed inside the through groove, and a locking groove is formed on the bottom surface of the connecting block to engage with the locking block.

[0010] Furthermore, a spring is provided inside the through groove, with one end of the spring fixedly connected to the inner wall of the through groove and the other end fixedly connected to the locking block.

[0011] The aforementioned components achieve the following effect: by utilizing the spring, the connecting block can slide under the action of the spring force, thereby allowing the locking block to be locked into the slot opened on the connecting block, thus enabling the rapid assembly of the anti-corrosion layer inside the protective sleeve, thereby improving the stability of the anti-corrosion layer after assembly.

[0012] Preferably, an end cap is provided on the top end face of the protective sleeve, and the end cap is provided on the top surface of the anti-corrosion layer.

[0013] The aforementioned components achieve the following effect: by utilizing the end cap, the top of the protective sleeve can be sealed, thereby further isolating the screw and nut installed inside the protective sleeve from the air.

[0014] Preferably, the interior of the plurality of vertical sliding grooves is further provided with snap fasteners, and the plurality of snap fasteners are fixedly installed on the end cap.

[0015] The aforementioned components achieve the following effect: by utilizing the snaps provided on the end cap, the end cap can be quickly assembled.

[0016] Preferably, a plurality of arc-shaped card holders are fixedly installed on the top surface of the base, and an arc-shaped card plate is slidably arranged inside the plurality of arc-shaped card holders, and the plurality of arc-shaped card plates are fixedly installed on the inner wall of the protective sleeve.

[0017] The effect achieved by the above-mentioned components is that by utilizing multiple arc-shaped retaining plates inside the protective sleeve, rotating the protective sleeve causes the multiple arc-shaped retaining plates inside the protective sleeve to respectively engage with the multiple arc-shaped retaining seats on the base, thereby achieving the effect of quick assembly of the protective sleeve and the base.

[0018] Preferably, an annular groove is formed on the top surface of the base, and a sealing ring is provided inside the annular groove. The sealing ring is fixedly installed on the bottom end face of the protective sleeve.

[0019] The effect achieved by the above-mentioned components is that by using a sealing ring, the sealing effect between the bottom of the protective sleeve and the contact surface of the base is increased, which can better block air from entering the protective sleeve.

[0020] Compared with the prior art, the beneficial effects of this utility model are: This invention utilizes an anti-corrosion layer installed inside the protective sleeve to isolate the screw and nut inside from the air, thereby improving the protection of the screw and nut and minimizing the risk of corrosion caused by environmental factors, which could affect their normal use. This extends the service life and practicality of the bolt.

[0021] This invention utilizes a spring to allow the connecting block to slide under the spring force, thereby enabling the locking block to engage with the slot provided on the connecting block. This allows for the rapid assembly of the anti-corrosion layer inside the protective sleeve, thus improving the stability of the assembled anti-corrosion layer. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 For the present utility model Figure 1 A schematic diagram of the front section structure; Figure 3 For the present utility model Figure 2 Schematic diagram of the structure at point A; Figure 4 For the present utility model Figure 2 A schematic diagram of the structure at point B.

[0023] In the diagram: 1. Base; 2. Screw; 3. Nut; 4. Protective sleeve; 5. Arc-shaped seat; 6. Arc-shaped plate; 7. Annular groove; 8. Sealing ring; 9. Anti-corrosion layer; 10. Connecting block; 11. Vertical slide groove; 12. Support plate; 13. Locking block; 14. Spring; 15. Locking groove; 16. End cap; 17. Buckle. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-4 This utility model provides a technical solution: a bolt anti-corrosion device, including a base 1, a screw 2 slidably inserted in the middle of the base 1, a nut 3 threadedly connected to the circumference of the screw 2, the nut 3 rotatably mounted on the top surface of the base 1, a protective sleeve 4 provided on the top surface of the base 1, the screw 2 and nut 3 both being disposed within the protective sleeve 4, and an anti-corrosion layer 9 being provided inside the protective sleeve 4. By utilizing the anti-corrosion layer 9 disposed within the protective sleeve 4, the screw 2 and nut 3 disposed within the protective sleeve 4 are isolated from the air, thereby improving the protection effect on the screw 2 and nut 3, minimizing the possibility of corrosion of the screw 2 and nut 3 due to environmental factors, thus affecting the normal use of the screw 2 and nut 3, and improving the overall service life and practicality of the bolt.

[0026] The following is a detailed explanation of its overall setup and function.

[0027] The top inner wall of the protective sleeve 4 has multiple vertical grooves 11 axially formed, and connecting blocks 10 are slidably arranged inside each of the vertical grooves 11. The anti-corrosion layer 9 is fixedly installed on the top surface of the connecting blocks 10. Multiple support plates 12 are fixedly installed on the inner wall of the protective sleeve 4, and the connecting blocks 10 are arranged on the support plates 12. By utilizing the vertical grooves 11 on the inner wall of the protective sleeve 4, the sliding direction of the connecting blocks 10 is restricted, thereby facilitating the quick assembly of the anti-corrosion layer 9 into the protective sleeve 4, thus protecting the screw 2 and nut 3. The support blocks provide support for the connecting blocks 10, thereby improving the stability of the anti-corrosion layer 9 inside the protective sleeve 4.

[0028] A through groove is formed on the support plate 12, and a locking block 13 is slidably disposed inside the through groove. A slot 15 is formed on the bottom surface of the connecting block 10 to engage with the locking block 13. A spring 14 is disposed inside the through groove, with one end of the spring 14 fixedly connected to the inner wall of the through groove and the other end fixedly connected to the locking block 13. By utilizing the spring 14, the connecting block 10 can slide under the elastic force of the spring 14, thereby allowing the locking block 13 to engage with the slot 15 formed on the connecting block 10. This achieves the effect of quickly assembling the anti-corrosion layer 9 inside the protective sleeve 4, thereby improving the stability of the anti-corrosion layer 9 after assembly.

[0029] An end cap 16 is provided on the top end face of the protective sleeve 4, and the end cap 16 is located on the top surface of the anti-corrosion layer 9. By using the end cap 16, the top end of the protective sleeve 4 can be sealed, thereby further isolating the screw 2 and nut 3 located inside the protective sleeve 4 from the air.

[0030] Multiple vertical sliding grooves 11 are also fitted with snap-fit ​​buckles 17, which are all fixedly installed on the end cover 16. By using the snap-fit ​​buckles 17 on the end cover 16, the end cover 16 can be quickly assembled.

[0031] Multiple arc-shaped retaining seats 5 are fixedly installed on the top surface of the base 1. Arc-shaped retaining plates 6 are slidably disposed inside each of the multiple arc-shaped retaining seats 5, and these plates 6 are fixedly installed on the inner wall of the protective sleeve 4. By utilizing the multiple arc-shaped retaining plates 6 inside the protective sleeve 4, rotating the protective sleeve 4 causes the multiple arc-shaped retaining plates 6 inside the protective sleeve 4 to respectively engage with the multiple arc-shaped retaining seats 5 on the base 1, thereby achieving the effect of quick assembly between the protective sleeve 4 and the base 1.

[0032] An annular groove 7 is formed on the top surface of the base 1, and a sealing ring 8 is provided inside the annular groove 7. The sealing ring 8 is fixedly installed on the bottom end face of the protective sleeve 4. By using the sealing ring 8, the sealing effect between the bottom end of the protective sleeve 4 and the contact surface of the base 1 is increased, and air can be better blocked from the outside of the protective sleeve 4.

[0033] Working principle: By utilizing multiple arc-shaped clamping plates 6 inside the protective sleeve 4, rotating the protective sleeve 4 causes the multiple arc-shaped clamping plates 6 inside the protective sleeve 4 to respectively engage with the multiple arc-shaped clamping seats 5 on the base 1, thereby achieving the effect of quick assembly of the protective sleeve 4 and the base 1.

[0034] Next, by utilizing the vertical groove 11 opened on the inner wall of the protective sleeve 4, the connecting block 10 on the anti-corrosion layer 9 can slide along the vertical groove 11, thereby allowing the connecting block 10 to slide onto the support plate 12. Furthermore, by utilizing the spring 14, the connecting block 10 can slide under the elastic force of the spring 14, thereby allowing the locking block 13 to be locked into the locking groove 15 opened on the connecting block 10. This achieves the effect of quickly assembling the anti-corrosion layer 9 inside the protective sleeve 4, thereby improving the stability of the anti-corrosion layer 9 after assembly.

[0035] By using the end cap 16, the top of the protective sleeve 4 can be sealed, thereby further isolating the screw 2 and nut 3 inside the protective sleeve 4 from the air.

[0036] 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.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bolt corrosion protection device, comprising a base (1), characterized in that: A screw (2) is slidably inserted in the middle of the base (1). A nut (3) is threaded on the circumferential surface of the screw (2). The nut (3) is rotatably disposed on the top surface of the base (1). A protective sleeve (4) is disposed on the top surface of the base (1). The screw (2) and the nut (3) are both disposed inside the protective sleeve (4). An anti-corrosion layer (9) is also disposed inside the protective sleeve (4).

2. The bolt corrosion protection device according to claim 1, characterized in that: The top inner wall of the protective sleeve (4) is provided with multiple vertical grooves (11) along the axial direction. Each of the multiple vertical grooves (11) is slidably provided with a connecting block (10). The anti-corrosion layer (9) is fixedly installed on the top surface of the multiple connecting blocks (10). Multiple support plates (12) are fixedly installed on the inner wall of the protective sleeve (4). The connecting block (10) is set on the support plate (12).

3. The bolt corrosion protection device according to claim 2, characterized in that: The support plate (12) has a through groove, and a locking block (13) is slidably disposed inside the through groove. The bottom surface of the connecting block (10) has a locking groove (15) that engages with the locking block (13).

4. The bolt corrosion protection device according to claim 3, characterized in that: A spring (14) is provided inside the through groove. One end of the spring (14) is fixedly connected to the inner wall of the through groove, and the other end is fixedly connected to the locking block (13).

5. A bolt corrosion protection device according to claim 2, characterized in that: An end cap (16) is provided on the top end face of the protective sleeve (4), and the end cap (16) is provided on the top surface of the anti-corrosion layer (9).

6. A bolt corrosion protection device according to claim 5, characterized in that: The interior of each of the vertical grooves (11) is also fitted with a buckle (17), and the buckles (17) are all fixedly installed on the end cap (16).

7. A bolt corrosion protection device according to claim 1, characterized in that: Multiple arc-shaped card holders (5) are fixedly installed on the top surface of the base (1). Arc-shaped card plates (6) are slidably arranged inside the multiple arc-shaped card holders (5). The multiple arc-shaped card plates (6) are fixedly installed on the inner wall of the protective sleeve (4).

8. A bolt corrosion protection device according to claim 1, characterized in that: An annular groove (7) is provided on the top surface of the base (1), and a sealing ring (8) is provided inside the annular groove (7). The sealing ring (8) is fixedly installed on the bottom end face of the protective sleeve (4).

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