Combined bolt fastening assembly

Abstract

The utility model provides a combined type bolt fastening assembly, relates to combined type bolt technical field, including: protective cover and nut, the top of protective cover is provided with the push groove, the both sides inner wall of push groove is provided with the sliding groove, the both sides inner surface of sliding groove is connected with the clamping block in sliding mode, and the clamping block is connected with the nut. Mounting blocks are fixedly connected to the inner surfaces of the two sliding grooves, and sliding rods movably penetrate through the outer surfaces of the two mounting blocks. According to the utility model, under the cooperation of the slot, the push block, the clamping block, the spring, the mounting block, the guide rod, the connecting block, the sliding rod, the sliding groove and the mounting groove, the protective cover can be quickly dismounted from and mounted on the screw cap, so that after the protective cover is mounted on the screw cap, the protective cover can play a role of a barrier to block the direct contact of air vapor and chemical substances; therefore, oxidation and corrosion reactions on the surface of the nut are reduced, the service life of the nut is effectively prolonged, and the surface of the nut is kept intact.

Description

Technical Field

[0001] The utility model relates to the technical field of combined bolts, in particular to a combined bolt fastening assembly. Background Art

[0002] A bolt is a mechanical part, a cylindrical threaded fastener that is matched with a nut. It is a type of fastener consisting of a head and a screw. The screw is a cylinder with an external thread that can be used with a nut to fasten two parts with through holes. This type of connection is called a bolt connection. Currently, bolts are widely used in many occasions such as science and technology, production, processing and testing, as well as in mechanical equipment and instruments.

[0003] In the prior art, after the bolt is installed, the screw rod is usually inside the assembly, while the nut is still on the outside, exposing the surface of the nut to air, water vapor and chemicals, which is prone to corrosion and oxidation reactions, causing the surface of the nut to rust and become damaged, thus affecting its service life. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that after the bolt is installed, the screw rod is usually inside the assembly, while the nut is still on the outside, so that the surface of the nut is exposed to air, water vapor and chemicals, which is prone to corrosion and oxidation reactions, causing the surface of the nut to rust and be damaged, thereby affecting its service life, and to propose a combined bolt fastening assembly.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a combined bolt fastening assembly, comprising: a protective cover and a nut, the top of the protective cover is provided with a pushing groove, the inner walls on both sides of the pushing groove are provided with sliding grooves, the inner surfaces of the two sliding grooves are slidably connected with clamping blocks, the inner surfaces of the two sliding grooves are fixedly connected with mounting blocks, the outer surfaces of the two mounting blocks are movably penetrated by sliding rods, the outer surfaces of the two sliding rods are sleeved with springs, a guide rod is fixedly connected between the inner surfaces of the pushing grooves, the outer surfaces of the guide rods are symmetrically and movably penetrated by connecting blocks, one end of the two sliding rods are fixedly connected to the outer surfaces of the two clamping blocks, the other ends of the two sliding rods are respectively fixedly connected to the outer surfaces of the two connecting blocks, a rubber strip is bonded and connected between the outer surfaces of the two connecting blocks, a slot is provided at the bottom of the protective cover, and limiting grooves are symmetrically provided on the inner surface of the nut.

[0006] Preferably, the outer surfaces of the two clamping blocks are respectively matched with the inner surfaces of the two limiting grooves, the inner surface of the slot is matched with the outer surface of the nut, and the outer surfaces of the two connecting blocks are respectively slidably arranged with the inner surface of the pushing groove.

[0007] Preferably, one end of the two springs is fixedly connected to the outer surfaces of the two clamping blocks respectively, and the other end of the two springs is fixedly connected to the outer surfaces of the two mounting blocks respectively.

[0008] Preferably, guide blocks are symmetrically provided on the inner wall of the slot, and guide grooves are symmetrically provided on the top of the nut.

[0009] Preferably, the two guide blocks are respectively matched with the two guide grooves, and a screw rod is fixedly connected to the bottom of the nut.

[0010] Preferably, a placement groove is provided at the bottom of the protective cover, and a sealing ring is provided on the inner surface of the placement groove.

[0011] Preferably, the tops of the two connecting blocks are fixedly connected with push blocks, and the bottoms of the push blocks are fitted with the top of the protective cover.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, the protective cover can be quickly removed from and installed on the nut by the cooperation of the slot, the push block, the clamping block, the spring, the mounting block, the guide rod, the connecting block, the sliding rod, the sliding groove and the mounting groove. When the protective cover is installed on the nut, it can act as a barrier to block the direct contact of air, water vapor and chemical substances, thereby reducing the oxidation and corrosion reaction on the surface of the nut, effectively extending the service life of the nut and keeping its surface in good condition.

[0014] 2. In the present invention, the installation direction of the protective cover can be limited by the cooperation of the guide block and the guide groove, ensuring the subsequent engagement of the clamping block with the limiting groove, thereby improving the convenience of installing the protective cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of a combined bolt fastening assembly is provided for the utility model;

[0016] Figure 2 A cross-sectional view of a protective cover of a combined bolt fastening assembly is provided for the utility model;

[0017] Figure 3 A schematic diagram of a nut structure of a combined bolt fastening assembly is provided for the utility model;

[0018] Figure 4 The utility model provides a structural expansion diagram of a combined bolt fastening assembly;

[0019] Figure 5 A schematic diagram of the protective cover structure of a combined bolt fastening assembly is provided for the utility model;

[0020] Figure 6 The utility model provides a partial structural schematic diagram of a combined bolt fastening assembly.

[0021] Legend: 1. Screw; 2. Protective cover; 3. Push block; 5. Clamp block; 6. Spring; 7. Mounting block; 8. Guide rod; 9. Rubber strip; 10. Connecting block; 11. Sliding rod; 12. Guide groove; 13. Limiting groove; 14. Nut; 15. Sealing ring; 16. Slot; 17. Guide block; 18. Placement groove; 19. Sliding groove; 20. Pushing groove. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] Embodiment 1, as Figure 1-Figure 4As shown, the utility model provides a combined bolt fastening assembly, including: a protective cover 2 and a nut 14, a push groove 20 is opened on the top of the protective cover 2, and sliding grooves 19 are opened on the inner walls on both sides of the push groove 20, the inner surfaces of the two sliding grooves 19 are slidably connected with clamping blocks 5, the inner surfaces of the two sliding grooves 19 are fixedly connected with mounting blocks 7, the outer surfaces of the two mounting blocks 7 are movably penetrated by sliding rods 11, the outer surfaces of the two sliding rods 11 are sleeved with springs 6, guide rods 8 are fixedly connected between the inner surfaces of the push grooves 20, and the outer surfaces of the guide rods 8 are symmetrically and movably penetrated by connecting blocks 10, one end of the two sliding rods 11 is fixedly connected to the outer surfaces of the two clamping blocks 5, and the other ends of the two sliding rods 11 are respectively fixedly connected to the outer surfaces of the two connecting blocks 10. A rubber strip 9 is bonded and connected between the outer surfaces of the blocks 10, a slot 16 is provided at the bottom of the protective cover 2, and a limit slot 13 is symmetrically provided on the inner surface of the nut 14. The outer surfaces of the two clamping blocks 5 are respectively matched with the inner surfaces of the two limit slots 13, and the inner surface of the slot 16 is matched with the outer surface of the nut 14. The outer surfaces of the two connecting blocks 10 are respectively slidably arranged with the inner surface of the push slot 20, one end of the two springs 6 is respectively fixedly connected to the outer surfaces of the two clamping blocks 5, and the other ends of the two springs 6 are respectively fixedly connected to the outer surfaces of the two mounting blocks 7, a placement slot 18 is provided at the bottom of the protective cover 2, and a sealing ring 15 is provided on the inner surface of the placement slot 18, and the tops of the two connecting blocks 10 are fixedly connected with push blocks 3, and the bottom of the push block 3 is fitted with the top of the protective cover 2.

[0025] The effect achieved by the entire embodiment 1 is that after the screw rod 1 is fixed on the mounting piece, the protective cover 2 is picked up, and then after the slot 16 is aligned with the nut 14, the protective cover 2 is pressed downward. When the protective cover 2 moves downward, the outer side of the nut 14 will apply an extrusion force to the cross section of the block 5, so that the two blocks 5 enter the interior thereof along the sliding groove 19, and drive the sliding rod 11 to slide along the mounting block 7. At the same time, the spring 6 will be squeezed, driving the two connecting blocks 10 to move along the guide rod 8, and causing the rubber strip 9 to bend. When the nut 14 is completely entered into the slot 16, the limiting groove 13 will be aligned with the sliding groove 19. At this time, the block 5 is no longer subjected to the extrusion force. Under the restoring force of the spring 6 rebounding, the sliding rod 11 and the connecting block 10 will be driven to reset, causing the rubber strip 9 to stretch. The groove 20 is pushed to seal, and the block 5 is pushed out from the sliding groove 19 at the same time. Therefore, the block 5 will be inserted into the limiting groove 13 for engagement, completing the installation of the protective cover 2, and with the cooperation of the sealing ring 15 in the placement groove 18, the bottom of the protective cover 2 and the mounting part are sealed, so that the protective cover 2 can act as a barrier to block direct contact with air, water vapor and chemicals, thereby reducing oxidation and corrosion reactions on the surface of the nut 14, effectively extending the service life of the nut 14 and keeping its surface in good condition. When disassembly is required, just push the two pushing blocks 3 to move the two connecting blocks 10 and the sliding rod 11 inward, move the block 5 to the sliding groove 19, and make the block 5 no longer engage with the limiting groove 13, and then quickly remove the protective cover 2 for disassembly.

[0026] Embodiment 2, as Figure 1-Figure 4 As shown, the inner wall of the slot 16 is symmetrically provided with guide blocks 17 , the top of the nut 14 is symmetrically provided with guide grooves 12 , the two guide blocks 17 are respectively matched with the two guide grooves 12 , and the bottom of the nut 14 is fixedly connected with the screw rod 1 .

[0027] The effect achieved by the entire embodiment 2 is that when the nut 14 is installed in the slot 16, the installation direction of the protective cover 2 can be limited by the cooperation of the guide block 17 and the guide groove 12, ensuring the subsequent engagement of the block 5 with the limiting groove 13, thereby improving the convenience of installing the protective cover 2.

[0028] Working principle: After the screw rod 1 is fixed on the mounting piece, the protective cover 2 is picked up, and then the slot 16 is aligned with the nut 14, and the guide block 17 is aligned with the guide groove 12, and the protective cover 2 is pressed downward. When the protective cover 2 moves downward, the outer side of the nut 14 will apply an extrusion force to the cross section of the card block 5, so that the two card blocks 5 enter the interior along the sliding groove 19, and drive the sliding rod 11 to slide along the mounting block 7. At the same time, the spring 6 will be squeezed, driving the two connecting blocks 10 to move along the guide rod 8, and the rubber strip 9 will be bent. When the nut 14 is completely entered into the slot 16, the limit groove 13 will be aligned with the sliding groove 19. At this time, the card block 5 is no longer subjected to the extrusion force. Under the restoring force of the spring 6 rebounding, the sliding rod 11 and the connecting block 10 will be reset, so that the rubber strip 9 Stretch to seal the push groove 20, and at the same time push the block 5 out of the sliding groove 19, so the block 5 will be inserted into the limit groove 13 for engagement, completing the installation of the protective cover 2, and with the cooperation of the sealing ring 15, complete the sealing of the bottom of the protective cover 2 and the mounting part, so that the protective cover 2 can act as a barrier to block direct contact with air, water vapor and chemicals, thereby reducing oxidation and corrosion reactions on the surface of the nut 14, effectively extending the service life of the nut 14 and keeping its surface in good condition. When disassembly is required, just push the two push blocks 3 to move the two connecting blocks 10 and the sliding rod 11 inward, move the block 5 to the sliding groove 19, and make the block 5 no longer engage with the limit groove 13, and then quickly remove the protective cover 2 for disassembly.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A combined bolt fastening assembly, characterized in that: include: A protective cover (2) and a nut (14), the top of the protective cover (2) is provided with a push groove (20), the inner walls on both sides of the push groove (20) are provided with sliding grooves (19), the inner surfaces of the two sliding grooves (19) are slidably connected with a clamping block (5), the inner surfaces of the two sliding grooves (19) are fixedly connected with a mounting block (7), the outer surfaces of the two mounting blocks (7) are movably penetrated with a sliding rod (11), the outer surfaces of the two sliding rods (11) are sleeved with a spring (6), the inner surface of the push groove (20) is connected to the inner surface of the two sliding grooves (19) and the inner surface of the two sliding grooves (19) is connected to the inner surface of the two sliding grooves (19). A guide rod (8) is fixedly connected between the two guide rods (8), and a connecting block (10) is symmetrically and movably penetrated on the outer surface of the two clamping blocks (5). One end of the two sliding rods (11) is fixedly connected to the outer surface of the two clamping blocks (5), and the other ends of the two sliding rods (11) are respectively fixedly connected to the outer surfaces of the two connecting blocks (10). A rubber strip (9) is bonded and connected between the outer surfaces of the two connecting blocks (10). A slot (16) is provided at the bottom of the protective cover (2), and a limiting groove (13) is symmetrically provided on the inner surface of the nut (14).

2. The combined bolt fastening assembly according to claim 1, characterized in that: The outer surfaces of the two clamping blocks (5) are respectively matched with the inner surfaces of the two limiting grooves (13), the inner surface of the slot (16) is matched with the outer surface of the nut (14), and the outer surfaces of the two connecting blocks (10) are respectively slidably arranged with the inner surface of the pushing groove (20).

3. The combined bolt fastening assembly according to claim 2, characterized in that: One end of the two springs (6) is fixedly connected to the outer surfaces of the two clamping blocks (5), respectively, and the other end of the two springs (6) is fixedly connected to the outer surfaces of the two mounting blocks (7), respectively.

4. The combined bolt fastening assembly according to claim 3, characterized in that: The inner wall of the slot (16) is symmetrically provided with a guide block (17), and the top of the nut (14) is symmetrically provided with a guide groove (12).

5. The combined bolt fastening assembly according to claim 4, characterized in that: The two guide blocks (17) are respectively matched with the two guide grooves (12), and the bottom of the nut (14) is fixedly connected with a screw rod (1).

6. The combined bolt fastening assembly according to claim 5, characterized in that: A placement groove (18) is provided at the bottom of the protective cover (2), and a sealing ring (15) is provided on the inner surface of the placement groove (18).

7. The combined bolt fastening assembly according to claim 6, characterized in that: The tops of the two connection blocks (10) are fixedly connected with push blocks (3), and the bottoms of the push blocks (3) are arranged to fit the tops of the protective covers (2).

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