Automatic reset rotating shaft

Abstract

The utility model discloses an automatic reset rotating shaft, which relates to the technical field of rotating shafts and comprises a rod body, a rotating frame, a torsion spring, a fixed plate and a nut, the rotating frame is rotatably connected to the outer side of the rod body, the upper end of the rod body is fixedly connected with an upper connecting rod, the lower end of the rod body is fixedly connected with a lower connecting rod, the fixed plate is arranged on the outer side of the upper connecting rod, and the torsion spring is arranged on the nut. And the nut is in threaded connection with the outer side of the upper connecting rod. By the adoption of the structure, the rotating frame rotates on the rod body in a limited mode, meanwhile, the upper end of the torsion spring on the outer side of the rod body is limited on the fixing plate, the lower end of the torsion spring is limited on the rotating frame, the rotating frame is connected with an external box door, when the box door is opened, the torsion spring is twisted through the rotating frame, and after the rotating frame is loosened, the rotating frame resets under the reset effect of the torsion spring. The connected box door can be automatically closed, and the negative effect on the box body due to the fact that a user forgets to close the door during use is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of rotating shafts, and particularly relates to an automatic reset rotating shaft. Background Technique

[0002] The principle of the rotation of the cabinet door is mainly realized through a rotating shaft or a hinge. The cabinet door is usually equipped with a hinge or a rotating shaft device, which allows the cabinet door to rotate around a fixed axis. The hinge consists of two interconnected metal plates, one connected to the cabinet door and the other fixed to the cabinet body. When the cabinet door is pushed open or closed, the rotation of the hinge enables the cabinet door to rotate along the axis, thus realizing the opening and closing actions of the cabinet door. The principle of the rotating shaft is similar. It embeds an axis between the cabinet door and the cabinet body, enabling the cabinet door to rotate around the axis. This design not only makes the opening and closing of the cabinet door smoother, but also increases the stability and durability of the cabinet body;

[0003] The publication number CN219733129U discloses a hinge structure for the cabinet door of a test chamber, including a cabinet body, an upper cabinet door, and a lower support. T-shaped bushings are fixedly embedded at the top and bottom of the upper cabinet door and the top and bottom of the lower support. The T-shaped bushings extend vertically, and their heads are exposed, and all T-shaped bushings are located on the left side of the upper cabinet door or the lower support. An upper fixing seat is welded to the top of the cabinet body, a lower fixing seat is welded to the lower end, and a lower support plate is welded to the bottom. The upper fixing seat, the lower fixing seat, and the lower support plate are all located on the left side of the cabinet body and all extend to the front of the cabinet body. A first shaft sleeve is provided downward at the front end of the upper fixing seat. The lower fixing seat is located between the upper cabinet door and the lower support, and a second shaft sleeve is provided upward at the front end of the lower fixing seat. The second shaft sleeve is a hollow shaft with a threaded hole inside.

[0004] However, most of the existing cabinet door rotating shafts adopt relatively traditional hinge-connected rotating shafts. If the cabinet door or the box door is forgotten to be closed after being opened, it may bring certain negative effects to the use of the cabinet body, such as dust entering, etc. Therefore, it is necessary to improve the traditional rotating shaft so that the cabinet door can automatically close after being opened. Content of the Utility Model

[0005] Aiming at the problems mentioned in the background technique, the purpose of the utility model is to provide an automatic reset rotating shaft to solve the problems mentioned in the above background technique.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions:

[0007] An automatic reset rotating shaft, comprising a rod body, a rotating frame, a torsion spring, a fixing plate and a nut. The rotating frame is rotatably connected to the outside of the rod body. The upper end of the rod body is fixedly connected with an upper connecting rod, and the lower end of the rod body is fixedly connected with a lower connecting rod. The fixing plate is arranged outside the upper connecting rod, and the nut is threadedly connected to the outside of the upper connecting rod. The torsion spring is arranged outside the rod body. The upper end of the torsion spring is arranged outside the fixing plate, and the lower end of the torsion spring penetrates through the wall of the rotating frame. A support block is fixedly installed on the outside of the rod body, and an anti-collision mechanism is arranged at the upper end of the support block. The anti-collision mechanism is movably connected to the back of the rotating frame. Symmetrically arranged mounting holes are formed on the inner side of the front surface of the rotating frame;

[0008] The anti-collision mechanism includes a box body fixedly installed at the upper end of the support block. An installation plate is slidably connected to the inside of the box body. Springs are symmetrically and fixedly installed on the opposite sides inside the box body and the installation plate. A guide rod is fixedly installed on the side of the installation plate away from the spring. The end of the guide rod away from the installation plate slidably penetrates through the box body and is fixedly installed with a spherical surface block. One end of the guide rod is movably connected to the back of the rotating frame through the spherical surface block. Through the anti-collision mechanism, after the box door is automatically reset and closed through the rotating frame, it can prevent the box door from violently colliding with the box body.

[0009] As a preferred technical solution, a connecting groove is formed on the outside of the fixing plate, and a connecting hole is formed on the inner side of the upper end of the rotating frame. The upper end of the torsion spring is arranged inside the connecting groove, and the lower end of the torsion spring movably penetrates through the connecting hole. Through the connecting groove and the connecting hole, the upper end of the torsion spring can be limited on the fixing plate, and at the same time, the lower end of the torsion spring can be limited on the rotating frame, which is convenient for the torsion spring to realize the automatic reset of the box door installed at the rotating frame.

[0010] As a preferred technical solution, limiting rods are symmetrically and fixedly installed inside the box body. The installation plate is slidably connected to the outside of the limiting rods, and one end of the limiting rods penetrates through the middle of the springs. Through the limiting rods in the box body, the springs can be limited.

[0011] As a preferred technical solution, sliding grooves are symmetrically formed inside the box body. The ends of the installation plate are slidably connected inside the sliding grooves. A round hole is formed inside the box body, and one end of the guide rod slidably penetrates through the round hole. Through the sliding grooves inside the box body, it is convenient for the installation plate to slide in the box body.

[0012] As a preferred technical solution, a positioning groove is formed at the upper box opening of the box body, and a cover plate is fixedly installed inside the positioning groove. Through the positioning groove on the box body, it is convenient to position and install the cover plate.

[0013] In summary, the main beneficial effects of the present utility model are as follows:

[0014] First, it rotates and is limited on the rod body through the rotating frame. At the same time, the upper end of the torsion spring outside the rod body is limited on the fixed plate, and the lower end of the torsion spring is limited on the rotating frame. The rotating frame is connected to the external box door. When the box door is opened, the torsion spring is twisted through the rotating frame. Conversely, after the rotating frame is released, the rotating frame can automatically close the connected box door under the reset effect of the torsion spring, avoiding the negative effects on the box body caused by the user forgetting to close the door when using.

[0015] Second, on the basis that the box door can be automatically reset and closed through the rotating frame, during this process, the rotating frame contacts the spherical block, and the torsion spring force causes the rotating frame to push the guide rod connected to the spherical block to slide on the box body. At the same time, the spring connected to the guide rod through the mounting plate enables the rotating frame to have a buffering effect in the state of the torsion spring reset, avoiding the violent impact on the box body caused by the box door driven by the rotating frame during the torsion spring reset process. Brief Description of the Drawings

[0016] Figure 1 is a schematic structural view of the present utility model;

[0017] Figure 2 is a schematic structural view of the rod body of the present utility model;

[0018] Figure 3 is a schematic back view structural view of the present utility model;

[0019] Figure 4 is a schematic internal structural view of the box body in the state where the rotating frame presses the spherical block of the present utility model.

[0020] Reference Signs: 1. Rod body; 2. Rotating frame; 3. Mounting hole; 4. Torsion spring; 5. Fixed plate; 6. Nut; 7. Mounting block; 8. Straight slot hole; 9. Lower connecting rod; 10. Upper connecting rod; 11. Support block; 12. Anti-collision mechanism; 121. Box body; 122. Guide rod; 123. Spherical block; 124. Mounting plate; 125. Spring; 13. Connecting hole; 14. Connecting groove; 15. Limiting rod; 16. Round hole; 17. Chute; 18. Positioning groove; 19. Cover plate; 20. Assembly plate. Detailed Description of the Preferred Embodiment

[0021] Reference Figures 1 to 4, an automatic reset rotating shaft according to this embodiment includes a rod body 1, a rotating frame 2, a torsion spring 4, a fixing plate 5 and a nut 6. The rotating frame 2 is rotatably connected to the outside of the rod body 1. The upper end of the rod body 1 is fixedly connected with an upper connecting rod 10, and the lower end of the rod body 1 is fixedly connected with a lower connecting rod 9. The fixing plate 5 is arranged outside the upper connecting rod 10, and the nut 6 is threadedly connected to the outside of the upper connecting rod 10. The torsion spring 4 is arranged outside the rod body 1. The upper end of the torsion spring 4 is arranged outside the fixing plate 5, and the lower end of the torsion spring 4 penetrates through the wall of the rotating frame 2. A support block 11 is fixedly installed on the outside of the rod body 1. An anti-collision mechanism 12 is arranged at the upper end of the support block 11. The anti-collision mechanism 12 is movably connected to the back of the rotating frame 2. Symmetrically arranged mounting holes 3 are formed on the inner side of the front surface of the rotating frame 2. By limiting the rotation of the rotating frame 2 on the rod body 1, at the same time, the upper end of the torsion spring 4 outside the rod body 1 is limited on the fixing plate 5, and the lower end of the torsion spring 4 is limited on the rotating frame 2. The rotating frame 2 is connected to the external cabinet door. When the cabinet door is opened, the torsion spring 4 is twisted by the rotating frame 2. On the contrary, after the rotating frame 2 is released, the rotating frame 2 can automatically close the connected cabinet door under the reset effect of the torsion spring 4, avoiding the negative effect on the cabinet body caused by the user forgetting to close the door when using;

[0022] The anti-collision mechanism 12 includes a box body 121. The box body 121 is fixedly installed at the upper end of the support block 11. An installation plate 124 is slidably connected to the inside of the box body 121. Springs 125 are symmetrically and fixedly installed on the opposite sides of the inside of the installation plate 124 and the box body 121. A guide rod 122 is fixedly installed on the side of the installation plate 124 away from the spring 125. One end of the guide rod 122 away from the installation plate 124 slidably penetrates through the box body 121 and is fixedly installed with a spherical surface block 123. One end of the guide rod 122 is movably connected to the back of the rotating frame 2 through the spherical surface block 123. On the basis that the cabinet door is automatically reset and closed through the rotating frame 2, during this process, the rotating frame 2 contacts the spherical surface block 123, and the force of the torsion spring 4 causes the guide rod 122 connected to the spherical surface block 123 to be pushed by the rotating frame 2 to slide on the box body 121. At the same time, the spring 125 connected to the installation plate 124 by the guide rod 122 enables the rotating frame 2 to play a buffering effect under the reset state of the torsion spring 4, avoiding the violent impact on the cabinet body caused by the cabinet door driven by the rotating frame 2 during the reset process of the torsion spring 4.

[0023] Reference Figure 1 , a connection groove 14 is formed on the outside of the fixing plate 5, and a connection hole 13 is formed on the inner side of the upper end of the rotating frame 2. The upper end of the torsion spring 4 is arranged inside the connection groove 14, and the lower end of the torsion spring 4 movably penetrates through the connection hole 13. By using the connection groove 14 on the fixing plate 5, the upper end of the torsion spring 4 can be conveniently limited, and by using the connection hole 13 on the rotating frame 2, when the lower end of the torsion spring 4 is inserted, the lower end of the torsion spring 4 can be limited.

[0024] Reference Figure 4, on the inner side of the box body 121, limiting rods 15 are symmetrically and fixedly installed. The mounting plate 124 is slidably connected to the outside of the limiting rods 15. One end of the limiting rod 15 penetrates through the middle of the spring 125. By using the limiting rods 15 on the inner side of the box body 121, it is convenient to limit the compression deformation of the spring 125.

[0025] Reference Figure 4 , on the inner side of the box body 121, sliding grooves 17 are symmetrically formed. The end of the mounting plate 124 is slidably connected to the inside of the sliding grooves 17. A circular hole 16 is formed on the inner side of the box body 121. One end of the guide rod 122 slidably penetrates through the circular hole 16. By using the sliding grooves 17 on the inner side of the box body 121, the mounting plate 124 can stably slide inside the box body 121.

[0026] Reference Figure 3 and Figure 4 , at the upper box opening of the box body 121, a positioning groove 18 is formed. A cover plate 19 is fixedly installed inside the positioning groove 18. By using the positioning groove 18 on the box body 121, it is convenient to position and install the cover plate 19 on the box body 121.

[0027] Principle and advantages of use: During use, through the mounting holes 3 of the rotating frame 2, it is convenient to install and connect with the box door. The rotating frame 2 is rotationally limited on the rod body 1. At the same time, the upper end of the torsion spring 4 outside the rod body 1 is limited on the fixing plate 5, and the lower end of the torsion spring 4 is limited on the rotating frame 2. The rotating frame 2 is connected to the external box door. When the box door is opened, the torsion spring 4 is twisted by the rotating frame 2. Conversely, after releasing the rotating frame 2, the rotating frame 2 can automatically close the connected box door under the reset effect of the torsion spring 4;

[0028] On the basis that the box door is automatically reset and closed through the rotating frame 2, during this process, the rotating frame 2 contacts the spherical block 123. The force of the torsion spring 4 causes the rotating frame 2 to push the guide rod 122 connected to the spherical block 123 to slide on the box body 121. At the same time, the guide rod 122 is connected to the spring 125 through the mounting plate 124, so that the rotating frame 2 can play a buffering effect in the reset state of the torsion spring 4, avoiding the box door driven by the rotating frame 2 from causing a violent impact on the box body during the reset process of the torsion spring 4.

Claims

1. An automatic reset shaft, comprising a rod body (1), a rotating frame (2), a torsion spring (4), a fixing plate (5) and a nut (6), characterized in that: The rotating frame (2) is rotatably connected to the outside of the rod body (1); the upper end of the rod body (1) is fixedly connected to an upper connecting rod (10); the lower end of the rod body (1) is fixedly connected to a lower connecting rod (9); the fixing plate (5) is arranged on the outside of the upper connecting rod (10); the nut (6) is threadedly connected to the outside of the upper connecting rod (10); the torsion spring (4) is arranged on the outside of the rod body (1); the upper end of the torsion spring (4) is arranged on the outside of the fixing plate (5); the lower end of the torsion spring (4) penetrates the frame wall of the rotating frame (2); a support block (11) is fixedly installed on the outside of the rod body (1); an anti-collision mechanism (12) is provided at the upper end of the support block (11); the anti-collision mechanism (12) is movably connected to the back side of the rotating frame (2); and mounting holes (3) are symmetrically opened on the inner side of the front side of the rotating frame (2).

2. The automatic reset shaft according to claim 1, characterized in that: A connecting groove (14) is provided on the outer side of the fixing plate (5), a connecting hole (13) is provided on the inner side of the upper end of the rotating frame (2), the upper end of the torsion spring (4) is arranged on the inner side of the connecting groove (14), and the lower end of the torsion spring (4) movably passes through the connecting hole (13).

3. The automatic reset shaft according to claim 1, characterized in that: The anti-collision mechanism (12) comprises a box body (121), wherein the box body (121) is fixedly mounted on the upper end of the support block (11), a mounting plate (124) is slidably connected to the inner side of the box body (121), springs (125) are symmetrically fixedly mounted on the inner opposite sides of the mounting plate (124) and the box body (121), a guide rod (122) is fixedly mounted on the side of the mounting plate (124) away from the spring (125), one end of the guide rod (122) away from the mounting plate (124) slides through the box body (121) and is fixedly mounted with a spherical block (123), and one end of the guide rod (122) is movably connected to the back side of the rotating frame (2) through the spherical block (123).

4. The automatic reset shaft according to claim 3, characterized in that: A limiting rod (15) is symmetrically fixedly mounted on the inner side of the box body (121), the mounting plate (124) is slidably connected to the outer side of the limiting rod (15), and one end of the limiting rod (15) passes through the middle of the spring (125).

5. The automatic reset shaft according to claim 3, characterized in that: A sliding groove (17) is symmetrically provided on the inner side of the box body (121), and the end of the mounting plate (124) is slidably connected to the inner side of the sliding groove (17). A circular hole (16) is provided on the inner side of the box body (121), and one end of the guide rod (122) slides through the circular hole (16).

6. The automatic reset shaft according to claim 3, characterized in that: A positioning groove (18) is provided at the upper box opening of the box body (121), and a cover plate (19) is fixedly installed on the inner side of the positioning groove (18).

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