Unscrewing type locking device

Abstract

The utility model relates to the technical field of rotating shaft locking, and provides an unscrewing type locking device, which comprises a bearing box, wherein the bearing box is internally provided with a cavity and a locking hole communicated with the cavity; the rotating shaft is rotationally arranged on the bearing box; the rotation stopping disc is arranged on the rotating shaft and located in the cavity, and a plurality of matching holes are formed in the rotation stopping disc; the ejector pin is arranged in the locking hole in a sliding mode and enters or leaves the cavity after sliding, and the rotation stopping disc enters the cavity and then is matched with the matching hole to lock the rotating shaft. By means of the technical scheme, the problem that in the prior art, the rotating shaft cannot accurately stop at the designated position is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft locking, and specifically to a rotary opening and closing device. Background Art

[0002] At present, there are two methods for evaluating the results of fishing competitions. One is to compare the number of fish caught by each contestant, and the other is to compare the weight of the fish caught by each contestant. Both of these methods require manual operation by staff after the competition. The fish caught by the fishing contestants need to be taken to the weighing area, and then the staff will weigh or count them. The weighing or counting efficiency is low, and the results can only be displayed after a period of time after the competition is completed.

[0003] For the existing Chinese utility model patent with the application number 202321166686, a push rod and a push block are used to stop the rotation of the rotating shaft. This situation not only causes serious wear, but also cannot accurately stop at the designated position, resulting in low overall use of the device and affecting the weighing accuracy. Summary of the Utility Model

[0004] The utility model provides a rotary opening and closing device, which solves the problem in the related technology that a push rod and a push block are used to stop the rotation of the rotating shaft, resulting in serious wear and inability to accurately stop at the designated position.

[0005] The technical solution of the utility model is as follows:

[0006] The rotary opening and closing device includes:

[0007] A bearing box, which has a cavity and a locking hole communicating with the cavity inside;

[0008] A rotating shaft, rotatably arranged on the bearing box;

[0009] A stop turntable, arranged on the rotating shaft, the stop turntable is located inside the cavity, and the stop turntable has a number of mating holes;

[0010] A thimble, slidably arranged in the locking hole, the thimble slides in and out of the cavity, and after the stop turntable enters the cavity, it cooperates with the mating hole to lock the rotating shaft.

[0011] As a further technical solution, the cavity is approximately cylindrical, there is a gap between the stop turntable and the cavity, and the position of the cavity near the locking hole has an abutting surface, and the abutting surface abuts against the rotating shaft.

[0012] As a further technical solution, it further includes:

[0013] A ball is slidably arranged in the mating hole, and after sliding, the ball enters or leaves the mating hole.

[0014] An elastic member has two ends respectively arranged on the mating hole and the ball, and the elastic member is used to provide a force for the ball to leave the mating hole.

[0015] As a further technical solution, it further includes:

[0016] A telescopic member is arranged on the bearing box, and the telescopic member is used to drive the thimble to slide.

[0017] As a further technical solution, it further includes:

[0018] An end cover is detachably arranged on the bearing box. The end cover has a through hole, and the rotating shaft passes through the through hole. The end cover is used to close the cavity in the bearing box.

[0019] As a further technical solution, a keyway connection is provided between the rotating shaft and the stop turntable.

[0020] As a further technical solution, the end cover and the bearing box are connected by bolts.

[0021] The working principle and beneficial effects of the present utility model are as follows:

[0022] In the present utility model, when the device is in use, the rotating shaft will gradually rotate. When the rotating shaft rotates, the stop turntable in the bearing box will also rotate synchronously. When the stop turntable rotates to a specific position, the mating hole on the stop turntable will be in the same position as the locking hole on the bearing box. At this time, the thimble will block the locking hole, and the bearing will stop rotating. The rotating shaft is locked by the form of the thimble entering the locking hole. Compared with friction locking, the wear between the rotating shaft and the workpiece is smaller, and at the same time, more accurate positioning can be achieved. The position where the rotating shaft is locked is fixed, and there will be no situation of the rotating shaft position deviation, improving the accuracy of the position during setting and use. The sliding operation of the thimble in the locking hole is simple, and the locking and unlocking of the rotating shaft can be quickly realized, meeting the requirements of different use scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above characteristics, technical features, advantages and their implementation manners of the present utility model will be further described below in a clear and understandable manner in combination with the drawings in the preferred embodiments.

[0024] Figure 1 is a schematic structural diagram of the present utility model;

[0025] Figure 2 is a schematic structural diagram of the bearing box, rotating shaft and telescopic member in the present utility model;

[0026] Figure 3 Schematic diagram of the internal structure of the present utility model;

[0027] Figure 4 Schematic diagram of the internal structure of another state of the present utility model;

[0028] Figure 5 Schematic diagram of the structure of the stop turntable of the present utility model.

[0029] In the figure: 1, bearing box; 2, cavity; 3, locking hole; 4, rotating shaft; 5, stop turntable; 6, mating hole; 7, ejector pin; 8, gap; 9, abutting surface; 10, ball; 11, elastic member; 12, telescopic member; 13, end cover; 14, through hole. Detailed implementation manners

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the specific implementation manners of the present utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, they can also be understood as further technical solutions. Among some figures, components with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also means the situation of "more than one", and "several" includes "two" and "more than two".

[0031] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0032] In addition, in the description of the present application, the terms "first", "second", etc. are only used for distinguishing descriptions, and cannot be understood as indicating or implying relative importance.

[0033] Refer to Figures 1 to 5, which is the first embodiment of the present utility model, proposes a screwing-type locking device, including: a bearing box 1. There is a cavity 2 and a locking hole 3 communicating with the cavity 2 inside the bearing box 1; a rotating shaft 4 is rotatably arranged on the bearing box 1; a stop turntable 5 is arranged on the rotating shaft 4, the stop turntable 5 is located inside the cavity 2, and there are several mating holes 6 on the stop turntable 5; a thimble 7 is slidably arranged in the locking hole 3, and the thimble 7 slides into or out of the cavity 2 after sliding. After the stop turntable 5 enters the cavity 2, it cooperates with the mating hole 6 to lock the rotating shaft 4.

[0034] In this embodiment, when the device is in use, the rotating shaft 4 will gradually rotate. When the rotating shaft 4 rotates, the stop turntable 5 inside the bearing box 1 will also rotate synchronously. When the stop turntable 5 rotates to a specific position, the mating hole 6 on the stop turntable 5 will be in the same position as the locking hole 3 on the bearing box 1. At this time, the thimble 7 will block the locking hole 3, and the bearing stops rotating. The rotating shaft 4 is locked by the form that the thimble 7 enters the locking hole 3. Compared with friction locking, the wear between the rotating shaft 4 and the workpiece is smaller, and at the same time, more accurate positioning can be achieved. The position where the rotating shaft 4 is locked is fixed, and the situation of the position deviation of the rotating shaft 4 will not occur, improving the accuracy of the position during installation and use. The sliding operation of the thimble 7 in the locking hole 3 is simple, and the locking and unlocking of the rotating shaft 4 can be quickly realized, meeting the requirements of different usage scenarios.

[0035] As a further technical solution, the cavity 2 is approximately cylindrical, there is a gap 8 between the stop turntable 5 and the cavity 2, and there is an abutting surface 9 at a position of the cavity 2 close to the locking hole 3, and the abutting surface 9 abuts against the rotating shaft 4.

[0036] In this embodiment, the design of the cylindrical cavity 2 makes the rotation of the stop turntable 5 more stable inside it, reducing the shaking and unstable factors that may be caused by irregular shapes. The existence of the gap 8 provides a certain movement space for the rotation of the stop turntable 5, avoiding the friction and wear caused by too tight fit, and prolonging the service life of the device. When the thimble 7 enters the cavity 2 and cooperates with the mating hole 6, the design of the cylindrical cavity 2 and the abutting surface 9 can better limit the position of the stop turntable 5, making the locking more firm and reliable. The existence of the gap 8 will not affect the locking effect of the thimble 7, but can absorb vibration and impact force to a certain extent, improving the stability of locking.

[0037] As a further technical solution, it further includes: a ball 10 is slidably arranged in the mating hole 6, and the ball 10 slides into or out of the mating hole 6 after sliding; both ends of an elastic member 11 are respectively arranged on the mating hole 6 and the ball 10, and the elastic member 11 is used to provide a force for the ball 10 to leave the mating hole 6.

[0038] In this embodiment, the elastic member 11 provides a force for the pin 10 to leave the matching hole 6, so that the pin 10 is in an extended state under normal conditions. When the ejector pin 7 enters the cavity 2, it is necessary to overcome the elastic force of the elastic member 11 to push the pin 10 into the matching hole 6, which increases the difficulty of locking and improves the reliability of locking. When unlocking is required, it is only necessary to apply a certain external force to push the ejector pin 7 out of the cavity 2, and the pin 10 will automatically pop out of the matching hole 6 under the action of the elastic member 11, making the unlocking process smoother and more convenient. This automatic pop-up design reduces the user's operating steps and improves the convenience of use.

[0039] As a further technical solution, it further includes: a telescopic member 12 is arranged on the bearing box 1, and the telescopic member 12 is used to drive the ejector pin 7 to slide.

[0040] In this embodiment, the setting of the telescopic member 12 enables the sliding of the ejector pin 7 to be automatically controlled by external control, without the need to directly push the ejector pin 7 manually, which greatly improves the convenience of operation. The user can control the telescopic member 12 through simple operations, thereby quickly achieving the sliding of the ejector pin 7 and performing locking or unlocking operations. The adjustability of the telescopic member 12 allows the sliding distance and speed of the ejector pin 7 to be adjusted to meet different locking force and response time requirements, thereby improving the flexibility and adaptability of the device.

[0041] As a further technical solution, it also includes: an end cover 13 is detachably arranged on the bearing box 1, the end cover 13 has a through hole 14, the shaft 4 passes through the through hole 14, and the end cover 13 is used to close the cavity 2 in the bearing box 1.

[0042] In this embodiment, the end cover 13 is used to seal the cavity 2 in the bearing box 1, which can effectively prevent dust, moisture and other impurities from entering the interior of the locking device, thereby protecting the internal components from the influence of the external environment and ensuring the normal operation of the device. The close fit between the end cover 13 and the bearing box 1 can increase the structural stability of the entire device, reduce the impact of vibration and shaking caused by external factors on internal components, and improve the reliability of the locking device. The design of the through hole 14 allows the shaft 4 to smoothly pass through the end cover 13, while ensuring the close fit between the shaft 4 and the end cover 13, reducing the gap 8 and looseness, and further improving the stability of the device.

[0043] As a further technical solution, the rotating shaft 4 and the anti-rotation disk 5 are connected by a keyway.

[0044] In this embodiment, the keyway connection is a relatively common and effective mechanical connection method, which can provide a firm connection between the rotating shaft 4 and the stop turntable 5. During the operation of the locking device, the rotating shaft 4 needs to drive the stop turntable 5 to rotate. The keyway connection can ensure that there is no relative sliding or loosening between the two, ensuring the normal operation of the device. The design of the keyway connection makes the installation and disassembly of the rotating shaft 4 and the stop turntable 5 relatively simple. When assembling the locking device, the stop turntable 5 can be quickly connected by inserting a key into the keyway and then installing the stop turntable 5 on the rotating shaft 4. When maintenance or component replacement is required, the stop turntable 5 can also be easily disassembled from the rotating shaft 4.

[0045] As a further technical solution, the end cover 13 and the bearing box 1 are connected by bolts.

[0046] In this embodiment, the bolt connection is relatively simple, and the installation and disassembly processes are relatively convenient. When assembling the locking device, the end cover 13 can be quickly installed on the bearing box 1 by tightening the bolts; when maintenance or internal component replacement is required, the bolts can also be easily disassembled, the end cover 13 can be removed, and corresponding operations can be performed. The bolt connection is a common connection method, and the specifications and models of the bolts are relatively standardized, making them easy to obtain and replace. This enables the locking device to easily find suitable bolts for replacement during maintenance and repair, improving the versatility and maintainability of the device.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A screw-off locking device, characterized in that, Comprising: A bearing box (1), which has a cavity (2) and a locking hole (3) communicating with the cavity (2) therein; A rotating shaft (4), rotatably arranged on the bearing box (1); A stop turntable (5), arranged on the rotating shaft (4), the stop turntable (5) is located in the cavity (2), and the stop turntable (5) has a number of mating holes (6); A thimble (7), slidably arranged in the locking hole (3), the thimble (7) slides into or out of the cavity (2) after sliding, and after the stop turntable (5) enters the cavity (2), it cooperates with the mating hole (6) to lock the rotating shaft (4).

2. The screw-on locking device according to claim 1, characterized in that, The cavity (2) is approximately cylindrical, there is a gap (8) between the stop turntable (5) and the cavity (2), and there is an abutting surface (9) at the position of the cavity (2) close to the locking hole (3), and the abutting surface (9) abuts against the rotating shaft (4).

3. The screw-off type locking device according to claim 1, wherein Further comprising: A ball (10), slidably arranged in the mating hole (6), the ball (10) slides into or out of the mating hole (6) after sliding; An elastic member (11), with two ends respectively arranged on the mating hole (6) and the ball (10), and the elastic member (11) is used to provide a force for the ball (10) to leave the mating hole (6).

4. The screw-off type locking device according to claim 1, characterized in that, Further comprising: A telescopic member (12), arranged on the bearing box (1), and the telescopic member (12) is used to drive the thimble (7) to slide.

5. The screw-on locking device according to claim 1, characterized in that, Further comprising: An end cover (13), detachably arranged on the bearing box (1), the end cover (13) has a through hole (14), the rotating shaft (4) passes through the through hole (14), and the end cover (13) is used to close the cavity (2) inside the bearing box (1).

6. The screw-off type locking device according to claim 1, characterized in that, A keyway connection is provided between the rotating shaft (4) and the stop turntable (5).

7. The screw-off type locking device according to claim 5, characterized in that, The end cover (13) and the bearing box (1) are connected by bolts.

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