Combined high-tightness bolt

Abstract

The utility model discloses a high-tightness bolt for combined use, which belongs to the technical field of bolts and comprises a first connecting disc, six studs are in threaded connection with the inside of the first connecting disc, the top end of each stud is fixedly connected with a nut, and the outer surface of each nut is sleeved with a clamping frame. Clamping grooves which are arranged at equal intervals are formed in the outer surface of each clamping frame, a positioning hole is formed in the inner bottom wall of each clamping groove, six limiting rods are arranged above the first connecting disc, and two positioning frames are movably hinged to the interior of each limiting rod through pin shafts. According to the combined high-tightness bolt, the limiting rod and the positioning frame are used for pulling the other nut and the stud to rotate clockwise for locking, so that the tightness of the bolt in use can be effectively improved through the reverse acting force, and the bolt can be combined with an adjacent bolt for use in a mutual restriction manner when the working environment vibrates; and the loosening risk is effectively reduced, and the use tightness of the bolt is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of bolts, and in particular to a combination of high-tightness bolts. Background Art

[0002] A bolt is a mechanical part, a cylindrical threaded fastener that can be matched with a nut. It is a type of fastener consisting of a head and a screw, which is a cylinder with an external thread. It usually needs to be matched with a nut to fasten two parts with through holes. It is a very common connecting and fastening part.

[0003] The utility model with the existing authorization announcement number CN216842601U discloses a high-tightness bolt, including a body, a screw rod and a slider; the body: a placement groove is provided at the top, and limit blocks are provided on both sides of the placement groove, the body is provided with a slide groove, and a pressure block is slidably connected inside the slide groove, the screw rod is rotatably connected to the axial hole at the top of the body, and the screw is threadedly connected to the screw hole at the top of the pressure block.

[0004] With the above technical solution, the nut is threadedly connected to the body to fix the body, and the screw is rotated to make the pressure block slide downward in the slide groove, thereby pressing the two slide blocks to slide outward. The high-tightening bolt is firmly fixed, highly practical, and has a long service life. However, with the above technical solution, the fastening effect of the high-tightening bolt is still insufficient when in use. When the working environment vibrates, the adjacent bolts cannot restrain each other and are used in combination, and thus there is still a large risk of loosening, which affects the fastening effect of the bolt.

[0005] To this end, we propose a combination of high-tightness bolts to solve the above problems. Utility Model Content

[0006] The purpose of the present application is to solve the problem in the prior art that the bolts cannot restrain each other when used in combination and still have a large risk of loosening, and to propose a combination of high-tightness bolts.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A combination of high-tightness bolts includes a first connecting plate, the internal thread of the first connecting plate is connected to six studs, the top of each stud is fixedly connected to a nut, the outer surface of each nut is sleeved with a clamping frame, the outer surface of each clamping frame is provided with equidistantly arranged clamping grooves, the inner bottom wall of each clamping groove is provided with a positioning hole, six limiting rods are arranged above the first connecting plate, the interior of each limiting rod is movably hinged to two positioning frames through a pin shaft, each positioning frame is clamped in the interior of the clamping groove, the interior of each positioning frame is clamped with a positioning pin, and the bottom end of each positioning pin passes through one of the positioning frames and one of the positioning holes in sequence and extends to the interior of the clamping frame.

[0009] Preferably, a second connection plate is provided below the first connection plate, and the outer surface of each of the studs is in contact with the inner wall of the second connection plate.

[0010] Preferably, a first gasket is sleeved on the outer surface of each stud, the bottom surface of each first gasket contacts the upper surface of the first connecting plate, and the upper surface of each first gasket contacts the bottom surface of the nut.

[0011] Preferably, six groups of nuts are arranged below each group of second connecting plates, the number of nuts in each group is two, and each group of studs are threadedly connected to the studs.

[0012] Preferably, a second gasket is provided above each group of nuts, the inner wall of each second gasket is in contact with the outer surface of the stud, and the upper surface of each second gasket is in contact with the bottom surface of the second connecting plate.

[0013] Preferably, the outer surface of each nut and the inner wall of each clamping frame are provided with key slots, and a positioning block is clamped inside each group of key slots, and the number of key slots in each group is two.

[0014] Preferably, the upper surface of each positioning block is fixedly connected to a connecting block, and an empty groove is provided inside each connecting block.

[0015] Preferably, the top end of each positioning pin is fixedly connected to a limiting plate, the bottom surface of each limiting plate is in contact with the upper surface of the positioning frame, and the upper surface of each limiting plate is fixedly connected to a pull ring.

[0016] In summary, the technical effects and advantages of this application are:

[0017] 1. By setting a limit rod and a positioning frame, the positioning frame can be inserted into the clamping groove, and then the clamping frame clamped on the nut can be used to connect the studs at two positions. Since the limit rod is set obliquely, when one stud is loose and rotates counterclockwise, the limit rod and the positioning frame will pull the other nut and stud to rotate clockwise for locking. Therefore, this reverse force can effectively improve the tightness of the bolt when it is used, so that the bolt can be used in combination with adjacent bolts when the working environment vibrates, effectively reducing the risk of loosening and increasing the tightness of the bolt;

[0018] 2. By providing a movable hinge relationship between the positioning frame and the limit rod, and multiple clamping grooves on the clamping frame, the positioning frame can adapt to different positions after the studs and nuts are tightened, ensuring that the positioning frame can be smoothly inserted into the clamping groove. In addition, the position of the positioning frame inserted into the clamping groove can be fixed through the positioning pin and the positioning hole, so that the positioning frame is not easy to loosen from the clamping groove, ensuring the stability of the combination between the bolts, and further improving the tightness of the bolts, making it difficult for the bolts to loosen. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the first connecting plate of the utility model;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the stud of the utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the three-dimensional cross-section of the clamping frame of the utility model;

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the limit rod of the utility model.

[0023] In the figure: 1. first connecting plate; 2. stud; 3. nut; 4. snap-in frame; 5. snap-in groove; 6. positioning hole; 7. limit rod; 8. positioning frame; 9. positioning pin; 10. second connecting plate; 11. first gasket; 12. nut; 13. second gasket; 14. keyway; 15. positioning block; 16. connecting block; 17. empty slot; 18. limit plate; 19. pull ring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Reference Figure 1-4A combination of high-tightness bolts includes a first connecting plate 1, six studs 2 are connected to the internal thread of the first connecting plate 1, a nut 3 is fixed to the top of each stud 2, a second connecting plate 10 is arranged below the first connecting plate 1, the outer surface of each stud 2 is in contact with the inner wall of the second connecting plate 10, and the second connecting plate 10 cooperates with the first connecting plate 1 to better demonstrate the fixing process of the bolts and the combined use effect of the bolts.

[0026] The outer surface of each nut 3 is sleeved with a clamping frame 4, and the outer surface of each clamping frame 4 is provided with clamping grooves 5 arranged at equal distances. The outer surface of each stud 2 is sleeved with a first gasket 11, and the bottom surface of each first gasket 11 contacts the upper surface of the first connecting plate 1, and the upper surface of each first gasket 11 contacts the bottom surface of the nut 3. The first gasket 11 can increase the friction between the nut 3 and the first connecting plate 1, thereby further improving the firmness of the threaded connection of the stud 2.

[0027] A positioning hole 6 is provided on the inner bottom wall of each snap-in groove 5, and six groups of nuts 12 are arranged under each group of second connecting plates 10. The number of nuts 12 in each group is two, and each group of studs 2 is threadedly connected to the studs 2. The nuts 12 can fix the second connecting plate 10 from the bottom, increase the fastening effect of the studs 2 on the second connecting plate 10, and ensure the connection firmness between the first connecting plate 1 and the second connecting plate 10.

[0028] Six limit rods 7 are arranged above the first connecting disk 1, and the interior of each limit rod 7 is movably hinged to two positioning frames 8 through a pin shaft. A second gasket 13 is arranged above each group of nuts 12, and the inner wall of each second gasket 13 contacts the outer surface of the stud 2, and the upper surface of each second gasket 13 contacts the bottom surface of the second connecting disk 10. The second gasket 13 can increase the friction between the upper nut 12 and the second connecting disk 10, so that the nut 12 is not easy to loosen, thereby ensuring the use effect of the nut 12.

[0029] Each positioning frame 8 is clamped in the inside of the clamping groove 5, and a positioning pin 9 is clamped in the inside of each positioning frame 8. A key groove 14 is provided on the outer surface of each nut 3 and the inner wall of each clamping frame 4. A positioning block 15 is clamped in the inside of each group of key grooves 14. There are two key grooves in each group. Since there is an interference fit between the positioning block 15 and the key groove 14, the connection tightness between the clamping frame 4 and the nut 3 can be increased to prevent looseness between the clamping frame 4 and the nut 3.

[0030] The bottom end of each positioning pin 9 passes through one of the positioning frames 8 and one of the positioning holes 6 in sequence and extends to the inside of the clamping frame 4. The upper surface of each positioning block 15 is fixedly connected to a connecting block 16. An empty slot 17 is provided inside each connecting block 16. The connecting block 16 cooperates with the empty slot 17 to facilitate people to remove the positioning block 15 using tools such as a crowbar or a screwdriver, so that the clamping frame 4 and the nut 3 can also be removed, so that the clamping frame 4 and other structures can be recycled.

[0031] The top of each locating pin 9 is fixedly connected to a limiting plate 18, the bottom surface of each limiting plate 18 is in contact with the upper surface of the positioning frame 8, and the upper surface of each limiting plate 18 is fixedly connected to a pull ring 19. The limiting plate 18 can limit the position of the locating pin 9 to prevent the locating pin 9 from sliding downward and loosening from the positioning frame 8. The pull ring 19 can facilitate the user to manually remove the locating pin 9.

[0032] The working principle of the utility model is as follows: when in use, first pass the stud 2 through the first gasket 11, the first connecting plate 1, the second connecting plate 10 and the second gasket 13, and screw the nut 12 into the stud 2 to tighten it, then put the clamping frame 4 on the nut 3, and clamp the positioning block 15 through the keyway 14. At this time, the positioning frame 8 can be clamped into the inside of the clamping groove 5 through the limiting rod 7 and the positioning frame 8, and then the clamping frame 4 clamped on the nut 3 can be used to connect the studs 2 at two positions. Since the limiting rod 7 is set obliquely, when one stud 2 becomes loose and rotates counterclockwise, the limiting rod 7 and the positioning frame 8 will pull the other nut 3 and the stud 2 to rotate clockwise for locking, so that the reverse force can effectively improve the tightening of the bolt when in use. The degree of tightening allows the bolts to be used in combination with adjacent bolts when the working environment vibrates, effectively reducing the risk of bolt loosening and increasing the tightness of the bolts. In addition, due to the movable hinge relationship between the positioning frame 8 and the limiting rod 7, and the multiple clamping grooves 5 on the clamping frame 4, the positioning frame 8 can adapt to the different positions of the stud 2 and the nut 3 after being tightened, ensuring that the positioning frame 8 can be smoothly inserted into the clamping groove 5. At the same time, the positioning pin 9 can be used in conjunction with the limiting plate 18 and the pull ring 19 to be inserted into the positioning hole 6, and then the position of the positioning frame 8 inserted into the clamping groove 5 can be fixed, so that the positioning frame 8 is not easy to loosen from the clamping groove 5, ensuring the stability of the bolts when used in combination, thereby further improving the tightness of the bolts and making it difficult for the bolts to loosen.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-tightness bolt for combined use, comprising a first connecting plate (1), characterized in that: The first connecting plate (1) is internally threadedly connected with six studs (2), the top end of each stud (2) is fixedly connected with a nut (3), the outer surface of each nut (3) is sleeved with a clamping frame (4), the outer surface of each clamping frame (4) is provided with clamping grooves (5) arranged at equal distances, the inner bottom wall of each clamping groove (5) is provided with a positioning hole (6), six limiting rods (7) are arranged above the first connecting plate (1), the interior of each limiting rod (7) is movably hinged with two positioning frames (8) through a pin shaft, each positioning frame (8) is clamped in the interior of the clamping groove (5), and the interior of each positioning frame (8) is clamped with a positioning pin (9), and the bottom end of each positioning pin (9) passes through one of the positioning frames (8) and one of the positioning holes (6) in sequence and extends to the interior of the clamping frame (4).

2. A combined high-tightness bolt according to claim 1, characterized in that: A second connection plate (10) is arranged below the first connection plate (1), and the outer surface of each stud (2) is in contact with the inner wall of the second connection plate (10).

3. The high-tightness bolt used in combination according to claim 1, characterized in that: The outer surface of each stud (2) is sleeved with a first gasket (11), the bottom surface of each first gasket (11) is in contact with the upper surface of the first connecting plate (1), and the upper surface of each first gasket (11) is in contact with the bottom surface of the nut (3).

4. The high-tightness bolt used in combination according to claim 2, characterized in that: Six groups of nuts (12) are arranged below each group of second connecting plates (10), the number of nuts (12) in each group is two, and each group of nuts (12) is threadedly connected to the studs (2).

5. The high-tightness bolt for combined use according to claim 4, characterized in that: A second gasket (13) is arranged above each group of nuts (12), the inner wall of each second gasket (13) is in contact with the outer surface of the stud (2), and the upper surface of each second gasket (13) is in contact with the bottom surface of the second connecting plate (10).

6. The combined high-tightness bolt according to claim 1, characterized in that: The outer surface of each nut (3) and the inner wall of each clamping frame (4) are provided with a keyway (14), and a positioning block (15) is clamped inside each group of keyways (14), and the number of keyways (14) in each group is two.

7. The high-tightness bolt for combined use according to claim 6, characterized in that: The upper surface of each positioning block (15) is fixedly connected to a connecting block (16), and each connecting block (16) is provided with an empty groove (17) inside.

8. The combined high-tightness bolt according to claim 1, characterized in that: The top end of each positioning pin (9) is fixedly connected to a limiting plate (18), the bottom surface of each limiting plate (18) is in contact with the upper surface of the positioning frame (8), and the upper surface of each limiting plate (18) is fixedly connected to a pull ring (19).

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