Anti-loosening multifunctional screw assembly

Abstract

The anti-loosening multifunctional screw assembly comprises a screw body, the outer wall of the screw body is connected with a nut through threads, the outer wall of the screw body is fixedly connected with a baffle, the top of the screw body is connected with a push rod in an inserted mode, the outer wall of the push rod is rotationally connected with a fixing mechanism, and the outer wall of the push rod is fixedly connected with a vibration isolation mechanism. The fixing mechanism comprises a fixing plate, a connecting block, an extrusion block, a first spring and a blocking piece, the connecting block is fixedly connected to the bottom of the push rod, the extrusion block is fixedly connected to the bottom of the connecting block, the fixing plate is rotationally connected to the outer wall of the connecting block, and the outer wall of the extrusion block is sleeved with the first spring; the blocking piece is fixedly connected to the inner wall of the screw body, and the first support is fixedly connected with one side of the baffle. The screw not only can effectively resist vibration and impact of external force so as to greatly reduce the possibility of loosening of the screw, but also can reduce the transmission of vibration to other parts of the screw.

Description

Technical Field

[0001] This utility model relates to the field of adsorption treatment technology, and in particular to a multifunctional screw assembly that prevents loosening. Background Technology

[0002] In metal cutting machine tools, the core function of the screw is to ensure mechanical connection and stability. It rigidly fixes the tool, fixture or workpiece to the machine tool through the engagement of the threaded pair, and uses the preload to form a tight contact at the mating surface to resist the displacement and slippage caused by the cutting force.

[0003] However, in the complex vibration environment of metal cutting machine tools, when vibration energy is transmitted through the threaded pair, a lateral slippage tendency will occur. When the vibration frequency is coupled with the natural frequency of the threaded pair, it is easy to cause micro-slippage at the interface, resulting in the attenuation of the friction coefficient and the loss of preload, which may lead to the loosening of the screw. At the same time, the loosening of the screw may cause high-speed rotating parts to be thrown out. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-functional screw assembly that prevents loosening.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multi-functional anti-loosening screw assembly includes a screw body, a nut connected to the outer wall of the screw body by a thread, a baffle fixedly connected to the outer wall of the screw body, a push rod inserted into the top of the screw body, a fixing mechanism rotatably connected to the outer wall of the push rod, a vibration isolation mechanism fixedly connected to the outer wall of the push rod, and a groove provided on the outer wall of the push rod.

[0007] As a further embodiment of this utility model: the fixing mechanism includes a fixing plate, a connecting block, a pressing block, a spring and a baffle, and the connecting block is fixedly connected to the bottom of the push rod.

[0008] As a further embodiment of this utility model: the extrusion block is fixedly connected to the bottom of the connecting block, and the fixing plate is rotatably connected to the outer wall of the connecting block.

[0009] As a further embodiment of this utility model: the spring is sleeved on the outer wall of the extrusion block, and the baffle is fixedly connected to the inner wall of the screw body.

[0010] As a further embodiment of this utility model: the vibration isolation mechanism includes a first bracket, a rotating block, a cylinder, a guide rod, a second spring, a second bracket, a vertical rod, and a rubber seat, and the first bracket is fixedly connected to one side of the baffle.

[0011] As a further embodiment of this utility model: the rotating block is rotatably connected to both sides of the inner wall of the bracket, the guide rod is fixedly connected to one side of the rotating block, and the cylinder is sleeved on the outer wall of the guide rod.

[0012] As a further embodiment of this utility model: the second spring is sleeved on the outer wall of the guide rod, the second bracket is rotatably connected to one end of the cylinder, the vertical rod is fixedly connected to one side of the second bracket, and the rubber seat is fixedly connected to the bottom of the vertical rod.

[0013] Compared with the prior art, this utility model provides a multi-functional screw assembly that prevents loosening, which has the following beneficial effects:

[0014] 1. This multi-functional anti-loosening screw assembly, when the screw body is needed, pushes the push rod to retract the fixing mechanism, then the screw body is installed to the target position via threads. Then, the vibration isolation mechanism is released to allow the fixing mechanism to unfold. Next, the nut is rotated to cooperate with the fixing mechanism to further fix the target. Then, the bottom of the fixing mechanism is installed on the top of the target. Thus, through the cooperation of the fixing mechanism and the nut, a double loosening structure of mechanical locking and thread fastening is formed, which can effectively resist the problem of loosening caused by vibration, external impact, etc., and the vibration isolation mechanism can reduce the transmission of vibration to the screw body and connecting parts.

[0015] 2. This multi-functional anti-loosening screw assembly, when needing to fix two workpieces, pushes the push rod, causing the connecting block to move towards the bottom of the screw body. Simultaneously, the pressing block moves with the connecting block, compressing the spring. The pressing block extends from the top of the baffle to the bottom of the baffle within the space formed by the screw body. At this time, the fixing plate is subjected to pressure from the screw body, rotating at the connection point of the connecting block and retracting into the groove opened by the push rod. Then, as the screw body passes through the two workpieces via threads, the push rod is released, the spring is released, and the push rod, connecting block, and pressing block return to their original positions. The fixing plate disengages from the groove, and one end of the fixing plate contacts one side of the workpiece. Then, the nut is rotated, causing it to move on the outer wall of the screw body until it contacts the other workpiece, completing the fixation. This effectively resists loosening caused by vibration, external forces, etc., making the fixation more stable. It also quickly completes the contact positioning between the fixing plate and the workpiece, significantly shortening the installation time.

[0016] 3. This multi-functional anti-loosening screw assembly, when the screw body is affected by vibration, the vibration is transmitted to the vibration isolation mechanism through the bracket one. The rotating block rotates in the bracket one, driving the guide rod to move. The guide rod slides in the cylinder, squeezing the sleeved spring two. The compression or stretching of the spring two absorbs part of the vibration energy and then releases it. Subsequently, the bracket two is rotatably connected to the cylinder, and the angle can be adjusted according to the vibration direction to transmit the vibration to the vertical rod. The rubber seat at the bottom of the vertical rod further buffers the vibration through its own elastic deformation. Thus, it enhances the adaptability to complex vibration environments, and attenuates vibrations of different frequencies more comprehensively, improving the vibration isolation efficiency.

[0017] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0018] Figure 1 This is a front view of a multi-functional anti-loosening screw assembly proposed in this utility model;

[0019] Figure 2 This is an enlarged detail view of the screening mechanism in a multi-functional screw assembly for preventing loosening proposed in this utility model;

[0020] Figure 3 This is a side view of the screening mechanism in a multi-functional screw assembly for preventing loosening proposed in this utility model;

[0021] Figure 4 An exploded view of the adsorption mechanism in a multi-functional screw assembly for preventing loosening proposed in this utility model;

[0022] Figure 5 This is a cross-sectional view of the adsorption mechanism in a multifunctional screw assembly for preventing loosening proposed in this utility model.

[0023] In the diagram: 1. Screw body; 2. Fixing mechanism; 3. Nut; 4. Baffle; 5. Push rod; 6. Vibration isolation mechanism; 201. Fixing plate; 202. Connecting block; 203. Extrusion block; 204. Spring 1; 205. Baffle; 601. Bracket 1; 602. Rotating block; 603. Cylinder; 604. Guide rod; 605. Spring 2; 606. Bracket 2; 607. Vertical rod; 608. Rubber seat. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] A multi-functional anti-loosening screw assembly, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, it includes a screw body 1, a nut 3 connected to the outer wall of the screw body 1 by a thread, a baffle 4 fixedly connected to the outer wall of the screw body 1, a push rod 5 inserted into the top of the screw body 1, a fixing mechanism 2 rotatably connected to the outer wall of the push rod 5, a vibration isolation mechanism 6 fixedly connected to the outer wall of the push rod 5, and a groove is provided on the outer wall of the push rod 5.

[0028] When the screw body 1 is needed, push the push rod 5 to retract the fixing mechanism 2, then install the screw body 1 to the target position via threads. Then, loosen the vibration isolation mechanism 6 to unfold the fixing mechanism 2. Next, rotate the nut 3 to further fix the target in cooperation with the fixing mechanism 2. Then, install the bottom of the fixing mechanism 2 on the top of the target. Thus, through the cooperation of the fixing mechanism 2 and the nut 3, a double loosening structure of mechanical locking and thread fastening is formed, which can effectively resist the problem of loosening caused by vibration, external impact, etc., and the vibration isolation mechanism 6 can reduce the transmission of vibration to the screw body 1 and connecting parts.

[0029] To further secure the screw body 1 with nut 3, such as Figure 2 and Figure 3 As shown, the fixing mechanism 2 includes a fixing plate 201, a connecting block 202, a pressing block 203, a spring 204, and a baffle 205. The connecting block 202 is fixedly connected to the bottom of the push rod 5, the pressing block 203 is fixedly connected to the bottom of the connecting block 202, the fixing plate 201 is rotatably connected to the outer wall of the connecting block 202, the spring 204 is sleeved on the outer wall of the pressing block 203, and the baffle 205 is fixedly connected to the inner wall of the screw body 1.

[0030] When it is necessary to fix two workpieces, push the push rod 5 to move the connecting block 202 to the bottom of the screw body 1. At the same time, the pressing block 203 moves with the connecting block 202 and presses the spring 204. Simultaneously, the pressing block 203 extends from the top of the baffle 205 to the space formed between the bottom of the baffle 205 and the screw body 1. At this time, the fixing plate 201 is subjected to the pressure of the screw body 1 and rotates at the connection point of the connecting block 202, retracting into the groove opened by the push rod 5.

[0031] Next, when the screw body 1 passes through the two workpieces through the thread, the push rod 5 is released. At this time, the spring 204 is released, the push rod 5, the connecting block 202 and the pressing block 203 are reset, the fixing plate 201 is disengaged from the groove, and one end of the fixing plate 201 contacts one side of the workpiece.

[0032] Then rotate nut 3 to move it on the outer wall of screw body 1 until it contacts another workpiece and completes the fixation. This can effectively resist the loosening problem caused by vibration, external force and other external forces, making the fixation more stable. At the same time, it can quickly complete the contact positioning between the fixing plate 201 and the workpiece, greatly shortening the installation time.

[0033] To reduce the vibration impact on the screw body 1, such as Figure 4 and Figure 5 As shown, the vibration isolation mechanism 6 includes a first bracket 601, a rotating block 602, a cylinder 603, a guide rod 604, a second spring 605, a second bracket 606, a vertical rod 607, and a rubber seat 608. The first bracket 601 is fixedly connected to one side of the baffle 4. The rotating block 602 is rotatably connected to both sides of the inner wall of the first bracket 601. The guide rod 604 is fixedly connected to one side of the rotating block 602. The cylinder 603 is sleeved on the outer wall of the guide rod 604. The second spring 605 is sleeved on the outer wall of the guide rod 604. The second bracket 606 is rotatably connected to one end of the cylinder 603. The vertical rod 607 is fixedly connected to one side of the second bracket 606. The rubber seat 608 is fixedly connected to the bottom of the vertical rod 607.

[0034] When the screw body 1 is affected by vibration, the vibration is transmitted to the vibration isolation mechanism 6 through the bracket 601. The rotating block 602 rotates in the bracket 601, driving the guide rod 604 to move. The guide rod 604 slides in the cylinder 603, squeezing the spring 605. The compression or stretching of the spring 605 absorbs part of the vibration energy and then releases it.

[0035] Subsequently, the second bracket 606 is rotatably connected to the cylinder 603, and its angle can be adjusted according to the vibration direction to transmit the vibration to the vertical rod 607. The rubber seat 608 at the bottom of the vertical rod 607 further buffers the vibration through its own elastic deformation, thereby enhancing the adaptability to complex vibration environments and more comprehensively attenuating vibrations of different frequencies, thus improving vibration isolation efficiency.

[0036] Working principle: When the screw body 1 is needed, push the push rod 5 to retract the fixing mechanism 2. Then, install the screw body 1 to the target position via threads. Next, loosen the vibration isolation mechanism 6 to unfold the fixing mechanism 2. Then, rotate the nut 3 to further fix the target in conjunction with the fixing mechanism 2. Finally, install the bottom of the fixing mechanism 2 onto the top of the target.

[0037] When it is necessary to fix two workpieces, push the push rod 5 to move the connecting block 202 to the bottom of the screw body 1. At the same time, the pressing block 203 moves with the connecting block 202 and presses the spring 204. Simultaneously, the pressing block 203 extends from the top of the baffle 205 to the space formed between the bottom of the baffle 205 and the screw body 1. At this time, the fixing plate 201 is subjected to the pressure of the screw body 1 and rotates at the connection point of the connecting block 202, retracting into the groove opened by the push rod 5.

[0038] Next, when the screw body 1 passes through the two workpieces through the thread, the push rod 5 is released. At this time, the spring 204 is released, the push rod 5, the connecting block 202 and the pressing block 203 are reset, the fixing plate 201 is disengaged from the groove, and one end of the fixing plate 201 contacts one side of the workpiece.

[0039] Then rotate nut 3, causing it to move on the outer wall of screw body 1 until it contacts another workpiece, thus completing the fixing.

[0040] When the screw body 1 is affected by vibration, the vibration is transmitted to the vibration isolation mechanism 6 through the bracket 601. The rotating block 602 rotates in the bracket 601, driving the guide rod 604 to move. The guide rod 604 slides in the cylinder 603, squeezing the spring 605. The compression or stretching of the spring 605 absorbs part of the vibration energy and then releases it.

[0041] Subsequently, the second bracket 606 is rotatably connected to the cylinder 603, and its angle can be adjusted according to the direction of vibration, transmitting the vibration to the vertical rod 607. The rubber seat 608 at the bottom of the vertical rod 607 further buffers the vibration through its own elastic deformation.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-functional screw assembly for preventing loosening, comprising a screw body (1), characterized in that, The screw body (1) has a nut (3) threadedly connected to its outer wall, a baffle (4) fixedly connected to its outer wall, a push rod (5) inserted into the top of the screw body (1), a fixing mechanism (2) rotatably connected to the outer wall of the push rod (5), a vibration isolation mechanism (6) fixedly connected to the outer wall of the push rod (5), and a groove is provided on the outer wall of the push rod (5).

2. The anti-loosening multifunctional screw assembly according to claim 1, characterized in that, The fixing mechanism (2) includes a fixing plate (201), a connecting block (202), a pressing block (203), a spring (204), and a baffle (205), and the connecting block (202) is fixedly connected to the bottom of the push rod (5).

3. The anti-loosening multifunctional screw assembly according to claim 2, characterized in that, The extrusion block (203) is fixedly connected to the bottom of the connecting block (202), and the fixing plate (201) is rotatably connected to the outer wall of the connecting block (202).

4. The anti-loosening multifunctional screw assembly according to claim 2, characterized in that, The spring (204) is sleeved on the outer wall of the extrusion block (203), and the baffle (205) is fixedly connected to the inner wall of the screw body (1).

5. The anti-loosening multifunctional screw assembly according to claim 1, characterized in that, The vibration isolation mechanism (6) includes a first bracket (601), a rotating block (602), a cylinder (603), a guide rod (604), a second spring (605), a second bracket (606), a vertical rod (607), and a rubber seat (608), and the first bracket (601) is fixedly connected to one side of the baffle (4).

6. The anti-loosening multifunctional screw assembly according to claim 5, characterized in that, The rotating block (602) is rotatably connected to both sides of the inner wall of the support (601), the guide rod (604) is fixedly connected to one side of the rotating block (602), and the cylinder (603) is sleeved on the outer wall of the guide rod (604).

7. The anti-loosening multifunctional screw assembly according to claim 5, characterized in that, The second spring (605) is sleeved on the outer wall of the guide rod (604), the second bracket (606) is rotatably connected to one end of the cylinder (603), the vertical rod (607) is fixedly connected to one side of the second bracket (606), and the rubber seat (608) is fixedly connected to the bottom of the vertical rod (607).

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