Low-temperature-resistant nut
By designing anti-low temperature nuts with anti-loosening mechanisms and reinforcement components, the problem of nuts breaking and detaching in low temperature environments is solved, a stable connection between the nut and the screw is achieved, and the firmness and safety of the connection are ensured.
Patent Information
- Application Number
- CN202423063484.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-12-11
AI Technical Summary
Nuts are prone to breaking and detaching from threaded connectors in low-temperature environments, resulting in unstable connections and posing a safety hazard.
A low-temperature resistant nut is designed, which includes an anti-loosening mechanism and a reinforcement component. The anti-loosening mechanism is connected by a threaded connection between a moving block and an arc-shaped clamping plate driven by a screw to enhance the stability of the nut and the screw; the reinforcement component is connected by a rotating rod and a spring to reinforce half a circle to achieve reinforced locking of the nut.
It effectively improves the connection stability between the nut and the screw in low temperature environment, avoids the nut from breaking and detaching, and ensures the firmness and safety of the connection.
Smart Images
Figure CN223344423U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nuts, in particular to a low-temperature resistant nut. Background Art
[0002] A nut, also known as a nut cap, is a part that is screwed together with a bolt or screw for fastening. It is an essential component for manufacturing machinery. It has a hole in the center and threads on the inside of the hole. They cooperate with the bolt or screw through the threads on the inside to achieve the fastening effect.
[0003] In the existing technology, the connection between the nut and the screw has the problem of insufficient stability. Especially in low-temperature environments, the nut is prone to breakage, causing the nut to easily separate from the threaded connection, which cannot meet the high requirements for connection stability under harsh environmental conditions. This not only affects the firmness of the connection, but may also cause safety hazards.
[0004] Therefore, a low-temperature resistant nut is needed to solve the problem in the prior art that the nut is easily broken in a low-temperature environment and the nut after low-temperature breaking is easily separated from the threaded connection. Utility Model Content
[0005] The purpose of the utility model is to provide a low-temperature resistant nut to solve the problem in the prior art that the nut is prone to breakage in a low-temperature environment and the nut after low-temperature breakage is easily separated from the threaded connection piece.
[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a low-temperature resistant nut, comprising a nut body, a washer coaxially fixedly connected to the bottom end of the nut body, an anti-loosening mechanism provided inside the washer, a reinforcement component provided on the outer surface of the nut body, and a screw threadedly installed inside the nut body;
[0007] The anti-loosening mechanism includes two symmetrically distributed installation cavities, and the two installation cavities are respectively opened on both sides of the interior of the gasket. A screw is rotatably connected at the center between the two side walls of the interior of the installation cavity, and a moving block is threadedly connected to the outer surface of the screw. The outer wall of the moving block on one side close to the center point of the gasket is fixedly connected to two parallel connecting rods, and the outer walls of the two connecting rods on the side away from the moving block both slide through one side of the inner surface of the gasket and are fixedly connected to the same arc-shaped clamping plate.
[0008] It should be noted in the scheme that the reinforcement component includes two reinforcement half circles distributed in a mirror-symmetrical manner, and the two reinforcement half circles are respectively sleeved on both sides of the outer surface of the nut body, and the front end of the outer surface of the reinforcement half circle is fixedly connected to a fixed block, and the outer wall of one side of the fixed block is rotatably connected to a rotating rod through a rotating shaft, and a slot is provided on the outer wall of one end of the rotating rod, and the rear end of the outer surface of the reinforcement half circle is fixedly connected to a docking block, and a docking groove adapted to the rotating rod is provided through the side wall of the docking block, and the outer wall of one end of the docking block is fixedly connected to a sliding rod, and the outer wall of the end of the sliding rod away from the docking block is coaxially fixedly connected to a limiting plate, and a sliding plate is slidably sleeved on the outer surface of the sliding rod, and the outer wall of the end of the sliding plate away from the limiting plate is fixedly connected to a plug rod adapted to the slot, and a spring is fixedly connected between the limiting plate and the slide.
[0009] It is further worth mentioning that one side of the outer surface of the two reinforcement half circles is fixedly connected to a fixing plate, and the bottom surface of the fixing plate is fixedly connected to two parallel vertical rods, and two movable grooves are provided on both sides of the top of the gasket, which are connected to the corresponding installation cavity and slide with the vertical rods.
[0010] It should be further explained that the outer wall of each screw rod away from the corresponding arc-shaped clamping plate rotates through the outer surface of the washer and is coaxially fixedly connected with a screw cap, and the inner surfaces of the two arc-shaped clamping plates are provided with external threads that are compatible with the screw rod.
[0011] As a preferred embodiment, the movable block slides with the inner wall of the installation cavity, the bottom surfaces of the two vertical rods located on the same side slide through the corresponding movable grooves and are fixedly connected to the top surfaces of the corresponding movable blocks, and the two arc-shaped clamping plates are threadedly connected to the screw rod through external threads.
[0012] As a preferred embodiment, the two springs are respectively sleeved on the outer surfaces of the two sliding rods, the two rotating rods pass through the corresponding docking grooves and rotate to a longitudinal state, and each of the insertion rods is inserted into the corresponding slot.
[0013] Compared with the prior art, the beneficial effects of the present invention are:
[0014] 1. Through the action of the anti-loosening mechanism, the screw rotates to drive the moving block to move, so that the moving block pushes the arc-shaped clamping plate to move toward the direction of the screw through the connecting rod, so that the arc-shaped clamping plate is threadedly connected to the outer surface of the screw through the external thread, thereby improving the stability of the connection between the nut body and the screw, and effectively avoiding the problem of the nut being easily separated from the threaded connection after low-temperature fracture.
[0015] 2. Through the action of the reinforcement component, after the two reinforcement half circles come into contact, the rotating rod is rotated to make the slot correspond to the insertion rod. The slide plate is pushed to move by the provided spring, so that the insertion rod is inserted into the corresponding slot, completing the connection of the two reinforcement half circles, realizing the reinforcement of the nut body, and at the same time locking and limiting the two moving blocks, further improving the stability of the connection between the nut and the threaded connector, simple operation, and effectively avoiding the problem of the nut being easily broken in a low temperature environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the front cross-sectional structure of the gasket of the present invention;
[0018] Figure 3 This is a schematic diagram of the front view structure of one of the reinforced half circles of the present invention;
[0019] Figure 4 This is a side structural schematic diagram of one of the docking blocks of the present invention.
[0020] Numbers in the figure: 1. Nut body; 2. Washer; 3. Anti-loosening mechanism; 31. Mounting cavity; 32. Screw; 33. Moving block; 34. Connecting rod; 35. Arc-shaped clamping plate; 4. Reinforcement component; 41. Reinforcement half circle; 42. Fixed block; 43. Rotating rod; 44. Slot; 45. Docking block; 46. Docking groove; 47. Sliding rod; 48. Limiting plate; 49. Slide plate; 410. Insert rod; 411. Spring; 5. Screw; 6. Fixed plate; 7. Vertical rod; 8. Movable groove; 9. Tightening cap; 10. External thread. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0022] Example: Figures 1-4 As shown, the utility model provides a technical solution, including a nut body 1, a washer 2 is coaxially fixedly connected to the bottom end of the nut body 1, an anti-loosening mechanism 3 is provided inside the washer 2, a reinforcement component 4 is provided on the outer surface of the nut body 1, and a screw 5 is threadedly installed inside the nut body 1;
[0023] The anti-loosening mechanism 3 includes two symmetrically distributed installation cavities 31, and the two installation cavities 31 are respectively opened on both sides of the inside of the gasket 2. A screw rod 32 is rotatably connected at the center between the two side walls of the inside of the installation cavity 31, and a moving block 33 is threadedly connected to the outer surface of the screw rod 32. The outer wall of the moving block 33 on one side close to the center point of the gasket 2 is fixedly connected to two parallel connecting rods 34. The outer walls of the two connecting rods 34 on the side away from the moving block 33 both slide through one side of the inner surface of the gasket 2 and are fixedly connected to the same arc-shaped clamping plate 35.
[0024] Further as Figure 1 、 Figure 3 and Figure 4 As shown, it is worth mentioning that the reinforcement component 4 includes two reinforcement half circles 41 distributed in a mirror-symmetrical manner. The two reinforcement half circles 41 are respectively sleeved on both sides of the outer surface of the nut body 1, and the front end of the outer surface of the reinforcement half circle 41 is fixedly connected to a fixed block 42. The outer wall of one side of the fixed block 42 is rotatably connected to a rotating rod 43 through a rotating shaft. A slot 44 is provided on the outer wall of one end of the rotating rod 43, and a docking block 45 is fixedly connected to the rear end of the outer surface of the reinforcement half circle 41. A docking groove 46 adapted to the rotating rod 43 is provided through the side wall of the docking block 45, and a sliding rod 47 is fixedly connected to the outer wall of one end of the docking block 45. The outer wall of the end of the sliding rod 47 away from the docking block 45 is coaxially fixedly connected to the limiting plate 48, and a slide plate 49 is slidably sleeved on the outer surface of the sliding rod 47. The outer wall of the end of the slide plate 49 away from the limiting plate 48 is fixedly connected to an insertion rod 410 adapted to the slot 44, and a spring 411 is fixedly connected between the limiting plate 48 and the slide plate 49.
[0025] Further as Figure 1 As shown, it is worth mentioning that one side of the outer surface of the two reinforcing half circles 41 is fixedly connected to a fixing plate 6, and the bottom surface of the fixing plate 6 is fixedly connected to two parallel vertical rods 7, and two movable grooves 8 are provided on both sides of the top of the gasket 2, which are connected to the corresponding installation cavity 31 and slideably cooperate with the vertical rod 7.
[0026] Further as Figure 1 and Figure 2 As shown, it is worth mentioning that the outer wall of each screw rod 32 away from the corresponding arc-shaped clamping plate 35 rotates through the outer surface of the gasket 2 and is coaxially fixedly connected with a screw cap 9, and the inner surfaces of the two arc-shaped clamping plates 35 are provided with external threads 10 that are compatible with the screw rod 5.
[0027] Further as Figure 1 and Figure 2As shown, it is worth mentioning that the moving block 33 slides with the inner wall of the installation cavity 31 to improve the stability of the moving block 33 when sliding inside the installation cavity 31, and the bottom surfaces of the two vertical rods 7 on the same side slide through the corresponding movable grooves 8 and are fixedly connected to the top surfaces of the corresponding moving blocks 33, so that the corresponding reinforcement half circle 41 can be driven to move by the moving block 33, and the two arc-shaped clamping plates 35 are threadedly connected to the screw 5 through the external thread 10 to prevent the nut body 1 from being completely separated from the screw 5.
[0028] Further as Figure 1 、 Figure 3 and Figure 4 As shown, it is worth mentioning that the two springs 411 are respectively mounted on the outer surfaces of the two slide rods 47 to ensure that the moving direction of the slide plate 49 will not be affected when the springs 411 are deformed. The two rotating rods 43 pass through the corresponding docking grooves 46 and rotate to a longitudinal state. The connection between the two reinforcement half circles 41 is achieved through the staggered arrangement of the rotating rods 43 and the docking grooves 46. Each insertion rod 410 is inserted into the corresponding slot 44 to limit the rotating rod 43 and improve the stability of the two reinforcement half circles 41 after connection.
[0029] In summary: when using the low-temperature resistant nut, first install the nut body 1 on the screw 5, and then rotate the two screw caps 9 respectively. The screw caps 9 drive the screw 32 to rotate. Under the action of the thread, the screw 32 drives the moving block 33 to slide inside the installation cavity 31. The moving block 33 pushes the arc-shaped clamping plate 35 to move toward the direction of the screw 5 through the connecting rod 34. The outer thread 10 adapted to the inner surface of the arc-shaped clamping plate 35 and the screw 5 is used to make the two arc-shaped clamping plates 35 threadedly clamped on the outer surface of the screw 5, thereby improving the stability of the connection between the nut body 1 and the screw 5, and effectively avoiding the problem of the nut being easily separated from the threaded connection after low-temperature fracture.
[0030] When the moving block 33 pushes the arc-shaped clamping plate 35 to move in the direction of the screw rod 5, the two moving blocks 33 push the two reinforcement half circles 41 closer to each other through the sliding cooperation between the vertical rod 7 and the movable groove 8, and at the same time pull the two slide plates 49 in the direction away from the screw rod 5. When the outer walls of the two reinforcement half circles 41 that are close to each other fit together, the rotating rod 43 passing through the docking groove 46 is rotated so that the slot 44 opened on the rotating rod 43 corresponds to the insertion rod 410, and then the slide plate 49 is released, and the insertion rod 410 is pushed into the corresponding slot 44 under the elastic action of the spring 411, completing the connection of the two reinforcement half circles 41, realizing the reinforcement of the nut body 1, and at the same time locking and limiting the two moving blocks 33, further improving the stability of the connection between the nut and the threaded connection, simple operation, and effectively avoiding the problem of the nut being easily broken in low temperature environments.
[0031] 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 present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.
Claims
1. A low-temperature resistant nut, comprising a nut body (1), characterized in that: The bottom end of the nut body (1) is coaxially fixedly connected to a washer (2), an anti-loosening mechanism (3) is provided inside the washer (2), a reinforcement component (4) is provided on the outer surface of the nut body (1), and a screw (5) is threadedly installed inside the nut body (1); The anti-loosening mechanism (3) comprises two symmetrically distributed installation cavities (31), the two installation cavities (31) are respectively opened on both sides of the interior of the gasket (2), a screw rod (32) is rotatably connected at the center between the two side walls of the interior of the installation cavity (31), a moving block (33) is threadedly connected to the outer surface of the screw rod (32), and two parallel-distributed connecting rods (34) are fixedly connected to the outer wall of one side of the moving block (33) near the center point of the gasket (2), and the outer walls of the two connecting rods (34) away from the moving block (33) both slide through one side of the inner surface of the gasket (2) and are fixedly connected to the same arc-shaped clamping plate (35).
2. The low-temperature resistant nut according to claim 1, characterized in that: The reinforcing assembly (4) comprises two reinforcing half-rings (41) which are distributed in a mirror-symmetrical manner. The two reinforcing half-rings (41) are respectively sleeved on both sides of the outer surface of the nut body (1). The front end of the outer surface of the reinforcing half-ring (41) is fixedly connected with a fixing block (42). The outer wall of one side of the fixing block (42) is rotatably connected with a rotating rod (43) through a rotating shaft. A slot (44) is provided on the outer wall of one end of the rotating rod (43). The rear end of the outer surface of the reinforcing half-ring (41) is fixedly connected with a docking block (45). The side wall of the docking block (45) is penetrated by an opening. A docking groove (46) is provided which is adapted to the rotating rod (43); a sliding rod (47) is fixedly connected to the outer wall of one end of the docking block (45); the outer wall of one end of the sliding rod (47) away from the docking block (45) is coaxially fixedly connected to the limiting plate (48); a sliding plate (49) is provided on the outer surface of the sliding rod (47); the outer wall of one end of the sliding plate (49) away from the limiting plate (48) is fixedly connected to the plug rod (410) which is adapted to the slot (44); a spring (411) is fixedly connected between the limiting plate (48) and the sliding plate (49).
3. The low temperature resistant nut according to claim 2, characterized in that: One side of the outer surface of the two reinforcing half-rings (41) is fixedly connected to a fixing plate (6), and the bottom surface of the fixing plate (6) is fixedly connected to two parallel vertical rods (7). Two movable grooves (8) are provided on both sides of the top of the gasket (2), which are in communication with the corresponding installation cavity (31) and are slidably matched with the vertical rods (7).
4. The low temperature resistant nut according to claim 3, characterized in that: The outer wall of one side of each screw rod (32) away from the corresponding arc-shaped clamping plate (35) rotates through the outer surface of the washer (2) and is coaxially fixedly connected with a screw cap (9), and the inner surfaces of the two arc-shaped clamping plates (35) are provided with external threads (10) adapted to the screw rod (5).
5. The low temperature resistant nut according to claim 4, characterized in that: The moving block (33) is slidably engaged with the inner wall of the installation cavity (31); the bottom surfaces of the two vertical rods (7) located on the same side slide through the corresponding movable grooves (8) and are fixedly connected to the top surfaces of the corresponding moving blocks (33); and the two arc-shaped clamping plates (35) are threadedly connected to the screw rod (5) through external threads (10).
6. The low temperature resistant nut according to claim 5, characterized in that: The two springs (411) are respectively sleeved on the outer surfaces of the two slide rods (47), the two rotating rods (43) pass through the corresponding docking grooves (46) and rotate to a longitudinal state, and each insertion rod (410) is inserted into the corresponding slot (44).