A bolt facilitating tightening and a method of installing the same

Abstract

This invention discloses an easy-to-tighten bolt and its installation method, relating to the field of bolt technology. It addresses the problem in existing bolt technologies where a screwdriver-proof anti-dislodgement structure is installed at the top of the bolt, but the bolt lacks a self-reinforcing tightening structure during installation, thus failing to guarantee a tight bolt and affecting the subsequent tightening effect. The invention comprises two mounting plates, each housing a bolt body with a bolt head, a threaded rod at the bottom of the bolt head, and a tightening head at the bottom of the threaded rod. It also includes: an expansion sleeve mounted on the threaded rod, with three expansion ports on its surface, and the expansion sleeve is inserted into the threaded rod; a first washer positioned below the expansion sleeve, and a second washer positioned below the first washer, both containing rubber rings.

Description

Technical Field

[0001] This invention relates to the field of bolt technology, specifically to a bolt that is easy to tighten and its installation method. Background Technology

[0002] Bolts are mechanical parts, cylindrical threaded fasteners that are fitted with nuts. They are a type of fastener consisting of a head and a threaded shank. They need to be used with nuts to fasten two parts with through holes. If the nut is unscrewed from the bolt, the two parts can be separated. Therefore, bolted connections are detachable connections.

[0003] For example, the Chinese authorized patent (a bolt) with announcement number CN205578448U includes a connected head and a screw. The head has two lugs arranged opposite each other, which are scissor-shaped and rotatably connected. A driving member is slidably connected to the head in a radial direction. The driving member abuts against one end of the lugs near the head to move the other end of the lugs closer to or further away from the head. The end of the lug away from the driving member abuts against a screwdriver. This solves the problem that the screwdriver is easy to slip out of the head when rotating, and makes the connection between the screwdriver and the head more stable when rotating the bolt, resulting in a bolt with high working efficiency.

[0004] The existing technology has a screwdriver-proof anti-loosening structure on the top of the bolt, but it does not have a self-reinforcing tightening structure during installation, which cannot guarantee the tightening state of the bolt and affects the tightening effect of the bolt in the later stage. Therefore, it does not meet the current needs. In this regard, we propose a bolt that is easy to tighten and its installation method. Summary of the Invention

[0005] The purpose of this invention is to provide a bolt that is easy to tighten and its installation method, in order to solve the problem mentioned in the background art that the bolts in the prior art have a screwdriver anti-loosening structure on their installation top, but they do not have a self-reinforcing tightening structure during installation, so the tightening state of the bolt cannot be guaranteed, which affects the tightening effect of the bolt in the later stage.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a bolt that is easy to tighten, comprising a mounting plate and a bolt body, wherein two mounting plates are provided, and a bolt body is installed in the two mounting plates. A bolt head is provided on the bolt body, a threaded rod is provided at the bottom of the bolt head, and a fastening head is provided at the bottom of the threaded rod.

[0007] Also includes:

[0008] An expansion sleeve is provided on the screw rod. The surface of the expansion sleeve is provided with expansion ports, and there are three expansion ports. The expansion sleeve is inserted into the screw rod.

[0009] A first gasket is disposed below the expansion sleeve, and a second gasket is disposed below the first gasket. Both the first and second gaskets have rubber rings installed inside them, and both the first and second gaskets are plugged into the screw.

[0010] Preferably, the upper surface of the bolt head is provided with an internal hexagonal mounting port, and a bolt head support is installed below the bolt head.

[0011] Preferably, the upper surface of the bolt head support is provided with a first connecting groove, and the bolt head is inserted into the bolt head support through the first connecting groove. A second baffle is provided below the bolt head support.

[0012] Preferably, the screw has mounting threads around its bottom, and the mounting threads have left and right helical connecting threads, and there are several left and right helical connecting threads. The fastening head has a first connecting port inside.

[0013] Preferably, a left-hand locking nut is provided on the mounting thread, a right-hand locking nut is installed below the left-hand locking nut, and a first baffle is provided above the left-hand locking nut.

[0014] Preferably, a telescopic rubber sleeve is installed below the right-hand locking nut, and a fastening nut is provided below the telescopic rubber sleeve. The fastening nut has a second connection port inside, and a locking rod is installed in the second connection port. The locking rod is inserted and connected to the fastening nut through the second connection port. A fastening plate is provided on one side of the locking rod, and there are two fastening plates.

[0015] Preferably, both the first and second gaskets are provided with reinforcing bases, the upper surface of the reinforcing base is provided with a second connecting groove, both sides of the reinforcing base are provided with reinforcing edges, and the interior of the reinforcing edges is provided with fixing holes.

[0016] Preferably, the front and rear end faces of the reinforcing base are provided with extension grooves, an extension plate is installed inside the extension groove, and the extension plate is plugged into the extension groove. A stop strip is provided at the rear end of the upper surface of the extension plate, a limit plate is provided at the front end of the extension plate, and a limit slot is provided at the front end of the lower surface of the limit plate.

[0017] Preferably, the installation method for the easy-to-tighten bolt includes the following steps:

[0018] Step 1: First, connect the bolt body through the first connecting groove so that the bolt head is installed inside the bolt head support. Then, pass the expansion sleeve through the screw and place it below the bolt head support.

[0019] Step 2: Then, install the first gasket and the second gasket to the two reinforcing seats in opposite directions through the second connecting groove. Insert the first gasket with the reinforcing seat onto the screw and place it below the expansion sleeve.

[0020] Step 3: Then place the bolt body into the mounting hole of the mounting plate, and then sequentially connect the second washer with the reinforcing base, the left-hand lock nut and the right-hand lock nut to the mounting threads on the screw by turning them left and right respectively.

[0021] Step 4: Install the telescopic rubber sleeve and fastening nut on the screw and fastening head, insert and install the locking rod inside the fastening nut, and use the fastening plate on one side of the locking rod to fix it;

[0022] Step 5: Finally, as needed, pull out the limiting plate inside the reinforcement base and connect it to both sides of the mounting plate through the limiting slots. Then, install screws in the fixing holes inside the reinforcement edge for reinforcement.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. This invention installs an expansion sleeve on the bolt body, and sets installation threads around the bottom of the bolt. Several left and right turning connecting threads are set on the installation threads. During installation, the left-hand locking nut and the right-hand locking nut connect to the left and right turning connecting threads respectively, ensuring the tightness of the installation. At the same time, during tightening, the expansion port on the surface of the expansion sleeve expands outward to tighten, making it easy to know the overall tightening effect of the bolt body. This solves the problem in the prior art where the bolt has a screwdriver anti-loosening structure on its installation top, but it does not have a self-reinforcing tightening structure during installation, thus failing to guarantee the tightening state of the bolt and affecting the later tightening effect of the bolt.

[0025] 2. By setting up a telescopic rubber sleeve and a fastening nut, during installation, the telescopic rubber sleeve is installed on the screw and the fastening head, and then the fastening nut is installed below the telescopic rubber sleeve. The telescopic rubber sleeve fills the gap between the fastening nut and the right-hand locking nut. Then, a locking rod is inserted and installed inside the fastening nut, and the fastening plate on one side of the locking rod is used for fixation, which can play a role in overall reinforcement and also prevent the nut from loosening due to long-term use.

[0026] 3. By installing reinforcing seats on both the first and second gaskets, the reinforcing seats can contact the upper and lower surfaces of the mounting plate during installation. As needed, the limiting plates inside the reinforcing seats can be pulled out and connected to both sides of the mounting plate through the limiting slots. Screws can be installed in the fixing holes inside the reinforcing edges for reinforcement, thus ensuring the installation strength of the bolt body. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the bolt mounting structure of the present invention;

[0028] Figure 2 This is an enlarged schematic diagram of a portion of the bolt structure of the present invention;

[0029] Figure 3 This is an enlarged exploded view of the fastening nut structure of the present invention;

[0030] Figure 4 This is an enlarged schematic diagram of the exploded structure of the bolt head of the present invention;

[0031] Figure 5 This is an exploded and enlarged schematic diagram of the bolt reinforcement structure of the present invention;

[0032] Figure 6 This is a schematic diagram of the bolt mounting part of the present invention;

[0033] In the diagram: 1. Mounting plate; 2. Bolt body; 3. Bolt head support; 4. Hex socket; 5. Expansion sleeve; 6. First gasket; 7. Expansion port; 8. Second gasket; 9. Screw; 10. Fastening head; 11. Mounting thread; 12. First connection port; 13. Left-hand lock nut; 14. First stop plate; 15. Right-hand lock nut; 16. Telescopic rubber sleeve; 17. Fastening nut; 18. Second connection port; 19. Locking rod; 20. Fastening plate; 21. Bolt head; 22. Second stop plate; 23. Rubber ring; 24. First connection groove; 25. Reinforcing seat; 26. Second connection groove; 27. Reinforcing edge; 28. Fixing hole; 29. ​​Limiting plate; 30. Limiting slot; 31. Extension plate; 32. Stop bar; 33. Extension groove. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] Please see Figure 1-6 An embodiment of the present invention provides: a bolt that is easy to tighten, including a mounting plate 1 and a bolt body 2. There are two mounting plates 1, and the bolt body 2 is installed in the two mounting plates 1. The bolt body 2 is provided with a bolt head 21, and a screw 9 is provided at the bottom of the bolt head 21. A fastening head 10 is provided at the bottom of the screw 9.

[0036] Also includes:

[0037] An expansion sleeve 5 is mounted on a screw 9. The surface of the expansion sleeve 5 is provided with an expansion port 7, and there are three expansion ports 7. The expansion sleeve 5 is inserted into the screw 9 for connection.

[0038] The first gasket 6 is located below the expansion sleeve 5, and the second gasket 8 is located below the first gasket 6. Both the first gasket 6 and the second gasket 8 have rubber rings 23 installed inside them, and both the first gasket 6 and the second gasket 8 are plugged into the screw 9.

[0039] Please see Figures 1-3 The upper surface of the bolt head 21 is provided with an internal hexagonal mounting port 4. A bolt head support 3 is installed below the bolt head 21. First, the bolt body 2 is inserted and connected through the first connecting groove 24, so that the bolt head 21 is installed inside the bolt head support 3. Then, the expansion sleeve 5 passes through the screw 9 and is placed below the bolt head support 3.

[0040] Please see Figure 4 The upper surface of the bolt head support 3 is provided with a first connecting groove 24, and the bolt head 21 is connected to the bolt head support 3 by insertion through the first connecting groove 24. A second baffle 22 is provided below the bolt head support 3 to increase the contact area and ensure the reinforcement strength.

[0041] Please see Figure 2 The screw 9 has mounting threads 11 around its bottom, and the mounting threads 11 have left and right threaded connections, with several left and right threaded connections. The fastening head 10 has a first connection port 12 inside. During installation, the left-hand locking nut 13 and the right-hand locking nut 15 connect to the left and right threaded connections respectively, ensuring the tightness of the installation. At the same time, during tightening, the expansion port 7 on the surface of the expansion sleeve 5 expands outward to tighten, making it easy to know the overall tightening effect of the bolt body 2. This solves the problem in the prior art where the bolt has a screwdriver anti-loosening structure on its installation top, but it does not have a self-reinforcing tightening structure during installation, thus failing to guarantee the tightening state of the bolt and affecting the bolt's later tightening effect.

[0042] Please see Figure 2 and Figure 3 A left-hand locking nut 13 is provided on the mounting thread 11, a right-hand locking nut 15 is installed below the left-hand locking nut 13, and a first baffle 14 is provided above the left-hand locking nut 13. The bolt body 2 is placed in the mounting hole of the mounting plate 1, and then the second washer 8 with the reinforcing seat 25, the left-hand locking nut 13 and the right-hand locking nut 15 are sequentially fixedly connected to the mounting thread 11 on the screw 9 by left and right turns.

[0043] Please see Figures 1-3A telescopic rubber sleeve 16 is installed below the right-hand locking nut 15, and a fastening nut 17 is located below the telescopic rubber sleeve 16. The fastening nut 17 has a second connecting port 18 inside, and a locking rod 19 is installed inside the second connecting port 18. The locking rod 19 is inserted and connected to the fastening nut 17 through the second connecting port 18. A fastening piece 20 is provided on one side of the locking rod 19, and there are two fastening pieces 20. During installation, the telescopic rubber sleeve 16 is installed on the screw 9 and the fastening head 10, and then the fastening nut 17 is installed below the telescopic rubber sleeve 16. The telescopic rubber sleeve 16 fills the gap between the fastening nut 17 and the right-hand locking nut 15. Then, the locking rod 19 is inserted and installed inside the fastening nut 17 and fixed by the fastening piece 20 on one side of the locking rod 19, which can play a role in overall reinforcement and also prevent the nut from loosening due to long-term use.

[0044] Please see Figure 5 The first gasket 6 and the second gasket 8 are both provided with a reinforcing seat 25. The upper surface of the reinforcing seat 25 is provided with a second connecting groove 26. Both sides of the reinforcing seat 25 are provided with reinforcing edges 27. The interior of the reinforcing edge 27 is provided with fixing holes 28. As needed, the limiting plate 29 inside the reinforcing seat 25 can be pulled out and connected to both sides of the mounting plate 1 through the limiting slot 30. Screws can be installed in the fixing holes 28 inside the reinforcing edge 27 for reinforcement.

[0045] Please see Figure 5 The front and rear ends of the reinforcing base 25 are provided with extension grooves 33. Extension plates 31 are installed inside the extension grooves 33 and are plugged into the extension grooves 33. A stop bar 32 is provided at the rear end of the upper surface of the extension plate 31. A limit plate 29 is provided at the front end of the extension plate 31. A limit slot 30 is provided at the front end of the lower surface of the limit plate 29.

[0046] Please see Figures 1-6 A method for installing bolts that are easy to tighten includes the following steps:

[0047] Step 1: First, insert the bolt body 2 into the first connecting groove 24 so that the bolt head 21 is installed inside the bolt head support 3. Then, the expansion sleeve 5 passes through the screw 9 and is placed below the bolt head support 3.

[0048] Step 2: Then, install the first gasket 6 and the second gasket 8 to the two reinforcing seats 25 in opposite directions through the second connecting groove 26. Insert the first gasket 6 with the reinforcing seat 25 into the screw 9 and place it below the expansion sleeve 5.

[0049] Step 3: Then place the bolt body 2 into the mounting hole of the mounting plate 1, and then sequentially connect the second washer 8 with the reinforcing seat 25, the left-hand locking nut 13 and the right-hand locking nut 15 to the mounting thread 11 on the screw 9 by turning left and right respectively.

[0050] Step 4: Install the telescopic rubber sleeve 16 and the fastening nut 17 on the screw 9 and the fastening head 10, and insert the locking rod 19 into the fastening nut 17 and fix it using the fastening piece 20 on one side of the locking rod 19;

[0051] Step 5: Finally, as needed, the limiting plate 29 inside the reinforcing base 25 can be pulled out and connected to both sides of the mounting plate 1 through the limiting slot 30, and screws can be installed in the fixing holes 28 inside the reinforcing edge 27 for reinforcement.

[0052] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A bolt that is easy to tighten, comprising a mounting plate (1) and a bolt body (2), wherein there are two mounting plates (1), and the bolt body (2) is installed in the two mounting plates (1). A bolt head (21) is provided on the bolt body (2), and a screw (9) is provided at the bottom of the bolt head (21). A fastening head (10) is provided at the bottom of the screw (9). Its features are: Also includes: An expansion sleeve (5) is provided on the screw (9). An expansion port (7) is provided on the surface of the expansion sleeve (5), and there are three expansion ports (7). The expansion sleeve (5) is inserted into the screw (9). The first gasket (6) is located below the expansion sleeve (5), and the second gasket (8) is located below the first gasket (6). Both the first gasket (6) and the second gasket (8) are equipped with rubber rings (23), and both the first gasket (6) and the second gasket (8) are connected to the screw (9). The screw (9) has mounting threads (11) around its bottom. The mounting threads (11) have left and right helical connecting threads, and there are several of these threads. The fastening head (10) has a first connecting port (12) inside. A left-hand locking nut (13) is provided on the mounting threads (11). A right-hand locking nut (15) is installed below the left-hand locking nut (13). A first baffle (14) is provided above the left-hand locking nut (13). A telescopic rubber sleeve (16) is installed below the right-hand locking nut (15). A fastening nut (17) is installed below the telescopic rubber sleeve (16). A second connecting port (18) is provided inside the fastening nut (17). A locking rod (19) is installed inside the second connecting port (18), and the locking rod (19) is connected to the fastening nut (15) through the second connecting port (18). 7) Plug-in connection, a fastening plate (20) is provided on one side of the locking rod (19), and there are two fastening plates (20); a reinforcing seat (25) is provided on the first gasket (6) and the second gasket (8), a second connecting groove (26) is provided on the upper surface of the reinforcing seat (25), a reinforcing edge (27) is provided on both sides of the reinforcing seat (25), a fixing hole (28) is provided inside the reinforcing edge (27), an extension groove (33) is provided inside the front and rear end faces of the reinforcing seat (25), an extension plate (31) is installed inside the extension groove (33), and the extension plate (31) is plugged into the extension groove (33). A stop strip (32) is provided at the rear end of the upper surface of the extension plate (31), a limit plate (29) is provided at the front end of the extension plate (31), and a limit slot (30) is provided at the front end of the lower surface of the limit plate (29).

2. The bolt for easy tightening according to claim 1, characterized in that: The upper surface of the bolt head (21) is provided with an internal hexagonal mounting port (4), and a bolt head support seat (3) is installed below the bolt head (21).

3. The bolt for easy tightening according to claim 2, characterized in that: The upper surface of the bolt head support (3) is provided with a first connecting groove (24), and the bolt head (21) is connected to the bolt head support (3) by the first connecting groove (24). A second baffle (22) is provided below the bolt head support (3).

4. A method for installing a bolt that is easy to tighten, based on the bolt according to any one of claims 1-3, characterized in that, Includes the following steps: Step 1: First, insert the bolt body (2) through the first connecting groove (24) so ​​that the bolt head (21) is installed inside the bolt head support (3). Then, lower the expansion sleeve (5) through the screw (9) and place it below the bolt head support (3). Step 2: Then, the first gasket (6) and the second gasket (8) are connected to the two reinforcing seats (25) in opposite directions through the second connecting groove (26). The first gasket (6) with the reinforcing seat (25) is inserted into the screw (9) and placed below the expansion sleeve (5). Step 3: Then place the bolt body (2) into the mounting hole of the mounting plate (1), and then sequentially connect the second washer (8) with the reinforcing seat (25), the left-hand lock nut (13) and the right-hand lock nut (15) to the mounting thread (11) on the screw (9) by turning left and right respectively. Step 4: Install the telescopic rubber sleeve (16) and the fastening nut (17) on the screw (9) and the fastening head (10), and insert the locking rod (19) inside the fastening nut (17) and fix it using the fastening plate on one side of the locking rod (19); Step 5: Finally, pull out the limiting plate (29) inside the reinforcing base (25) according to the requirements and connect it with the two sides of the mounting plate (1) through the limiting slot (30). Then, install screws in the fixing hole (28) inside the reinforcing edge (27) for reinforcement.

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