Anti-loosening bolt structure of composite material

Abstract

The utility model discloses an anti-loosening bolt structure made of composite materials, which comprises a screw rod, a first thread is arranged on the surface of the screw rod, a limiting device is arranged on the outer wall of the screw rod, and the limiting device comprises a limiting groove arranged on the surface of the screw rod, and a second thread arranged on the surface of the limiting groove. The nut is in threaded connection with the outer wall of the thread; the limiting cylinder is connected to the outer wall of the screw rod in a sleeving manner; and the clamping block is fixedly connected to the inner wall of the limiting cylinder and is clamped to the inner wall of the limiting groove in a sliding manner. The utility model relates to the technical field of anti-loosening bolts made of composite materials, through the cooperation among a limiting groove, a nut and a clamping block, when two devices need to be fixed, a screw rod is firstly in threaded connection with the inner walls of the two devices, then the nut is in threaded connection with the outer wall of the screw rod, and a limiting cylinder is connected to the outer wall of the screw rod in a sleeved mode; the clamping blocks on the inner wall of the limiting cylinder can be clamped to the inner wall of the limiting groove, and at the moment, the limiting cylinder is located on the outer wall of the screw and cannot rotate.

Description

Technical Field

[0001] The utility model relates to the technical field of composite material anti-loosening bolts, in particular to a composite material anti-loosening bolt structure. Background Art

[0002] Composite materials are man-made materials composed of two or more materials with different properties. They offer structural designability, retaining the advantages of each component while achieving comprehensive performance that cannot be achieved by a single material through complementary materials. Composite matrix materials are primarily categorized as metals and non-metals. Metal matrices include aluminum, magnesium, copper, titanium, and their alloys, while non-metal matrices include synthetic resins, rubber, ceramics, graphite, and carbon.

[0003] When installing the existing composite material anti-loosening bolts, the bolts are passed through the two devices to be connected, and then the nuts are threadedly connected to the outer wall of the screw and pressed against the surface of one device to achieve fixation between the two devices.

[0004] However, when existing composite material anti-loosening bolts are used to securely connect two devices or structures, when the devices are in a vibrating environment, the nut will loosen on the outer wall of the screw. Over time, the nut may detach from the surface of the device, greatly weakening the fixing effect between the two devices. Utility Model Content

[0005] In response to the deficiencies in the prior art, the utility model provides an anti-loosening bolt structure made of a composite material, which solves the problem that when two devices or two structures are fixedly connected, when the devices are in a vibrating environment, the nut may loosen on the outer wall of the screw. Over time, the nut may detach from the surface of the device, and the fixing effect between the two devices will be greatly weakened.

[0006] To achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: a composite material anti-loosening bolt structure, including a screw, a surface of the screw is provided with a first thread, the outer wall of the screw is provided with a limiting device, the limiting device including: a limiting groove, provided on the surface of the screw; a nut, threadedly connected to the outer wall of the thread; a limiting cylinder, sleeved on the outer wall of the screw; a clamping block, fixedly connected to the inner wall of the limiting cylinder, and slidably clamped to the inner wall of the limiting groove; a fixing part, provided on the surface of the limiting cylinder; wherein, the limiting cylinder installs the clamping block, and the nut is limited by the clamping block being located on the inner wall of the limiting groove, and the fixing part fixes the limiting cylinder and the nut.

[0007] Preferably, the fixing portion includes: a threaded hole, which is opened on the surface of the nut; a mounting plate, which is fixedly connected to the surface of the limiting cylinder; a fixing bolt, which is threadedly connected to the inner wall of the mounting plate and threadedly connected to the inner wall of the threaded hole; wherein the mounting plate installs the fixing bolt, and the limiting cylinder and the nut are fixed through the threaded connection between the fixing bolt and the threaded hole.

[0008] Preferably, a first flower-shaped groove is provided on the surface of the fixing bolt.

[0009] Preferably, a connecting unit is provided on the front side of the screw, and the connecting unit includes: a nut fixedly connected to the front side of the screw; and a second flower-shaped groove opened on the front side of the nut; wherein the screw is installed and disassembled through the nut and the second flower-shaped groove.

[0010] Preferably, a first gasket is fixedly connected to the back of the nut, and a second gasket is provided on the side of the outer wall of the first gasket away from the nut and is sleeved on the outer wall of the screw.

[0011] Beneficial effects

[0012] The utility model provides a composite material anti-loosening bolt structure. It has the following beneficial effects: the composite material anti-loosening bolt structure cooperates with a limiting groove, a nut, and a clamping block. When two devices need to be fixed, the screw is first threadedly connected to the inner walls of the two devices, and then the nut is threadedly connected to the outer wall of the screw. The limiting cylinder is sleeved onto the outer wall of the screw so that the clamping block on the inner wall of the limiting cylinder can be clamped to the inner wall of the limiting groove. At this time, the limiting cylinder is located on the outer wall of the screw and cannot rotate. When the nut is subjected to external vibration, it is restricted by the limiting cylinder and cannot move toward the end of the screw, so that the nut can always be pressed against the surface of the device.

[0013] Through the cooperation between the mounting plate, the threaded hole and the fixing bolt, when the limiting cylinder is sleeved onto the outer wall of the screw, the clamping block is clamped on the inner wall of the limiting groove, and the front of the limiting cylinder and the back of the nut fit together. At this time, the fixing bolt is threadedly connected to the inner wall of the threaded hole to fix the limiting cylinder and the nut, so that the limiting cylinder cannot move toward the end of the screw, thereby limiting the fixation of the nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model;

[0015] Figure 2 for Figure 1 Schematic diagram of the structure of the middle nut, threaded hole and limiting cylinder;

[0016] Figure 3 for Figure 1Schematic diagram of the structure of the middle screw, limiting groove and nut;

[0017] Figure 4 for Figure 1 Schematic diagram of the structure of the middle nut, the second flower-shaped groove and the screw.

[0018] In the figure: 1. screw; 11. thread; 2. limiting device; 21. limiting groove; 22. nut; 23. limiting cylinder; 24. block; 25. fixing part; 251. threaded hole; 252. mounting plate; 253. fixing bolt; 2531. first flower-shaped groove; 3. connecting unit; 31. nut; 32. second flower-shaped groove; 4. first gasket; 5. second gasket. DETAILED DESCRIPTION

[0019] 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.

[0020] When existing composite material anti-loosening bolts are used to securely connect two devices or structures, the nut may loosen on the outer wall of the screw when the device is in a vibrating environment. Over time, the nut may detach from the surface of the device, greatly weakening the fixing effect between the two devices.

[0021] In view of this, the utility model provides an anti-loosening bolt structure of a composite material. Through the cooperation between the limiting groove, the nut and the clamping block, when two devices need to be fixed, the screw is first threadedly connected to the inner walls of the two devices, and then the nut is threadedly connected to the outer wall of the screw, and the limiting cylinder is sleeved onto the outer wall of the screw, so that the clamping block on the inner wall of the limiting cylinder can be clamped on the inner wall of the limiting groove. At this time, the limiting cylinder is located on the outer wall of the screw and cannot rotate. When the nut is subjected to external vibration, it cannot move to the end of the screw due to the restriction of the limiting cylinder, so that the nut can always be pressed against the surface of the device.

[0022] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process.

[0023] Example 1: By Figure 1-4It can be seen that a composite material anti-loosening bolt structure includes a screw 1, a first thread 11 is provided on the surface of the screw 1, and a limiting device 2 is provided on the outer wall of the screw 1, the limiting device 2 includes: a limiting groove 21, which is provided on the surface of the screw 1; a nut 22, which is threadedly connected to the outer wall of the thread 11; a limiting cylinder 23, which is sleeved on the outer wall of the screw 1; a clamping block 24, which is fixedly connected to the inner wall of the limiting cylinder 23 and slidably clamped to the inner wall of the limiting groove 21; a fixing portion 25, which is provided on the surface of the limiting cylinder 23; wherein the limiting cylinder 23 installs the clamping block 24, and the clamping block 24 is located on the inner wall of the limiting groove 21 to limit the nut 22, and the fixing portion 25 fixes the limiting cylinder 23 and the nut 22, and the screw 1, the nut 22 and the limiting cylinder 23 are all made of composite materials;

[0024] The nut 22 is then restricted by the limiting cylinder 23 and cannot move toward the end of the screw 1, so that the nut 22 can always be fixed to the surface of the device.

[0025] Furthermore, the fixing portion 25 includes: a threaded hole 251 formed on the surface of the nut 22; a mounting plate 252 fixedly connected to the surface of the limiting cylinder 23; and a fixing bolt 253 threadedly connected to the inner wall of the mounting plate 252 and the inner wall of the threaded hole 251. The mounting plate 252 is used to mount the fixing bolt 253, and the threaded connection between the fixing bolt 253 and the threaded hole 251 fixes the limiting cylinder 23 and the nut 22.

[0026] In the specific implementation process, it is worth noting that the screw rod 1 in this case can be applied to engineering equipment. The volume of the screw rod 1 is relatively large, and the size of the fixing bolt 253, the nut 22 and the threaded hole 251 is sufficient for fixing. After the limiting cylinder 23 is sleeved on the outer wall of the screw rod 1, the clamping block 24 is clamped on the inner wall of the limiting groove 21, and the front of the limiting cylinder 23 and the back of the nut 22 are in contact. At this time, the fixing bolt 253 is threadedly connected to the inner wall of the threaded hole 251 to fix the limiting cylinder 23 and the nut 22, so that the limiting cylinder 23 cannot move toward the end of the screw rod 1, thereby limiting the fixation of the nut 22.

[0027] Furthermore, a first flower-shaped groove 2531 is formed on the surface of the fixing bolt 253;

[0028] In the specific implementation process, it is worth noting that, by setting the first flower-shaped groove 2531 , the fixing bolt 253 can be disassembled, and then the nut 22 can be disassembled;

[0029] Specifically, when using the anti-loosening bolt structure of the composite material, when two devices need to be fixed, first the screw 1 is threadedly connected to the inner walls of the two devices through the thread 11 on the outer wall, and then the nut 22 is threadedly connected to the outer wall of the screw 1, and the limiting cylinder 23 is sleeved on the outer wall of the screw 1, so that the block 24 on the inner wall of the limiting cylinder 23 can be clamped on the inner wall of the limiting groove 21. At this time, the limiting cylinder 23 is located on the outer wall of the screw 1 and cannot rotate. When the nut 22 is subjected to external vibration, it cannot move to the end of the screw 1 due to the restriction of the limiting cylinder 23, so that the nut 2 2 can always be pressed against the surface of the equipment. After the limiting cylinder 23 is sleeved onto the outer wall of the screw 1, the clamping block 24 is clamped on the inner wall of the limiting groove 21, and the front of the limiting cylinder 23 and the back of the nut 22 are in contact. At this time, the fixing bolt 253 is threadedly connected to the inner wall of the threaded hole 251 to fix the limiting cylinder 23 and the nut 22, so that the limiting cylinder 23 cannot move toward the end of the screw 1, which plays a limiting role in the fixation of the nut 22. Through the setting of the first flower-shaped groove 2531, the fixing bolt 253 can be removed, and then the nut 22 can be removed.

[0030] Example 2: By Figure 1-4 It can be seen that the front of the screw rod 1 is provided with a connecting unit 3, which includes: a nut 31 fixedly connected to the front of the screw rod 1; a second flower-shaped groove 32, which is provided on the front of the nut 31; wherein, the screw rod 1 is installed and removed through the nut 31 and the second flower-shaped groove 32;

[0031] In the specific implementation process, it is worth noting that, through the setting of the nut 31 and the second flower-shaped groove 32, when the screw 1 is disassembled, the nut 31 can be rotated by a tool to achieve the rotation of the screw 1;

[0032] Furthermore, a first gasket 4 is fixedly connected to the back of the nut 31, and a second gasket 5 is provided on the side of the outer wall of the first gasket 4 away from the nut 31 and sleeved on the outer wall of the screw 1;

[0033] In the specific implementation process, it is worth noting that when the screw 1 is used for connection and fixation, the first gasket 4 is attached to the surface of one device, and then the second gasket 5 is attached to the surface of another device, and then the nut 22 is pressed against the surface of the second gasket 5. This can increase the friction between the nut 22 and the device, thereby improving the anti-loosening effect;

[0034] Specifically, on the basis of the above-mentioned embodiment 1, through the setting of the nut 31 and the second flower-shaped groove 32, when the screw 1 is disassembled, the nut 31 can be rotated by a tool to realize the rotation of the screw 1. When the screw 1 is connected and fixed, the first gasket 4 is affixed to the surface of one device, and then the second gasket 5 is affixed to the surface of another device, and then the nut 22 is pressed against the surface of the second gasket 5, which can increase the friction between the nut 22 and the device and improve the anti-loosening effect.

[0035] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations. The phrase "includes an element defined by..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0036] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0037] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite material anti-loosening bolt structure, comprising a screw rod (1), characterized in that: The surface of the screw (1) is provided with a thread (11), and the outer wall of the screw (1) is provided with a limiting device (2), and the limiting device (2) includes: A limiting groove (21) is provided on the surface of the screw (1); a nut (22) threadedly connected to the outer wall of the thread (11); A limiting cylinder (23) is sleeved on the outer wall of the screw (1); A clamping block (24) is fixedly connected to the inner wall of the limiting cylinder (23) and is slidably clamped to the inner wall of the limiting groove (21); A fixing portion (25) is provided on the surface of the limiting cylinder (23); The limiting cylinder (23) is used to install the clamping block (24), and the clamping block (24) is located on the inner wall of the limiting groove (21) to restrict the nut (22), and the fixing portion (25) fixes the limiting cylinder (23) and the nut (22).

2. The composite material anti-loosening bolt structure according to claim 1, characterized in that: The fixing portion (25) comprises: A threaded hole (251) is formed on the surface of the nut (22); A mounting plate (252) fixedly connected to the surface of the limiting cylinder (23); A fixing bolt (253) is threadedly connected to the inner wall of the mounting plate (252) and is also threadedly connected to the inner wall of the threaded hole (251); The mounting plate (252) is used to mount the fixing bolt (253), and the limiting cylinder (23) and the nut (22) are fixed by threaded connection between the fixing bolt (253) and the threaded hole (251).

3. The composite material anti-loosening bolt structure according to claim 2, characterized in that: A first flower-shaped groove (2531) is formed on the surface of the fixing bolt (253).

4. The composite material anti-loosening bolt structure according to claim 1, characterized in that: A connecting unit (3) is provided on the front side of the screw rod (1), and the connecting unit (3) comprises: a nut (31) fixedly connected to the front side of the screw rod (1); A second flower-shaped groove (32) is provided on the front side of the nut (31); The screw rod (1) is installed and disassembled through the nut (31) and the second flower-shaped groove (32).

5. The composite material anti-loosening bolt structure according to claim 4, characterized in that: A first gasket (4) is fixedly connected to the back of the nut (31), and a second gasket (5) sleeved on the outer wall of the screw rod (1) is provided on the side of the outer wall of the first gasket (4) away from the nut (31).

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