Retaining mechanism and turntable

Abstract

The utility model provides a kind of holding mechanism and rotary table. Holding mechanism includes: shell assembly, shell assembly has accommodating cavity and the stop opening being communicated with accommodating cavity;Brake assembly, at least a part of brake assembly is movably arranged in accommodating cavity, brake assembly has locking state and unlocking state;Limiting component, at least a part of limiting component is arranged in accommodating cavity, limiting component has limit position and unlocking position;When brake assembly is in unlocking state, the end of brake assembly away from limiting component can be extended by stop opening or retreat back to accommodating cavity;When limiting component is in unlocking position, brake assembly can be switched between locking state and unlocking state. The utility model solves the problem of high maintenance cost and difficult operation of rotary table in prior art.

Description

Technical Field

[0001] This utility model relates to the field of camera device technology, and more specifically, to a holding mechanism and a turntable. Background Technology

[0002] With the rapid development of the security industry, photoelectric turntable cameras, as electronic devices that can replace the human eye, are widely used and play an important role in various application scenarios such as border security, forest fire prevention, and fishing and boat bans. They can replace humans in guarding harsh environments such as desolate areas and high-pressure zones. Photoelectric turntable equipment is relatively large, and the transportation and installation on site require high costs and time. More and more large equipment has a need for on-site replacement and maintenance. Existing solutions often require a large investment of manpower. Some are limited by location and cannot be operated by a single person, requiring the equipment to be moved from the current location and transported to another location for maintenance, which increases costs exponentially and greatly reduces the convenience of maintenance.

[0003] Therefore, existing technologies suffer from high turntable maintenance costs and operational difficulties. Utility Model Content

[0004] The main purpose of this utility model is to provide a holding mechanism and a turntable to solve the problems of high maintenance costs and difficult operation of turntables in the prior art.

[0005] To achieve the above objectives, according to one aspect of the present invention, a retaining mechanism is provided, comprising: a housing assembly having a receiving cavity and a stop opening communicating with the receiving cavity; a braking assembly having at least a portion movably disposed within the receiving cavity, the braking assembly having a locked state and an unlocked state; and a limiting assembly having at least a portion disposed within the receiving cavity, the limiting assembly having a limiting position and an unlocked position; when the braking assembly is in the unlocked state, the end of the braking assembly away from the limiting assembly can extend out of or retract into the receiving cavity through the stop opening; when the limiting assembly is in the unlocked position, the braking assembly can switch between the locked state and the unlocked state.

[0006] Furthermore, when the limiting component is in the limiting position, the limiting component abuts against the end of the braking component away from the stop opening.

[0007] Furthermore, when the braking assembly switches between a locked state and an unlocked state, the braking assembly rotates about the axis of the housing assembly; and / or when the end of the braking assembly away from the limiting assembly extends out of or retracts into the receiving cavity, the braking assembly moves along the axial direction of the housing assembly.

[0008] Furthermore, the circumferential sidewall of the housing assembly has an adjustment opening that communicates with the receiving cavity, and the braking assembly is provided with an adjustment protrusion corresponding to the adjustment opening. One end of the adjustment protrusion extends out of the receiving cavity through the adjustment opening and can move along the adjustment opening.

[0009] Furthermore, the adjustment opening includes a first segment and a second segment connected in sequence. When the braking assembly switches between a locked state and an unlocked state, the adjustment protrusion moves along the first segment; and / or when the braking assembly extends from the stop opening or retracts into the receiving cavity, the adjustment protrusion moves along the second segment.

[0010] Furthermore, the first segment extends circumferentially along the housing assembly; and / or the second segment extends axially along the housing assembly.

[0011] Furthermore, the braking assembly includes: a brake push rod having a locked state and an unlocked state, and the end of the brake push rod away from the limiting assembly being able to extend out of or retract into the receiving cavity through the stop opening; and a reset member having one end abutting against the brake push rod and the other end abutting against the housing assembly to provide a force for the brake push rod to extend out of the receiving cavity.

[0012] Furthermore, the end of the housing assembly away from the stop opening also has a control opening, and the end of the limiting assembly away from the braking assembly extends out of the receiving cavity through the control opening.

[0013] Furthermore, the limiting component includes: an adjusting screw having a limiting position and an unlocking position; and an internally threaded nut disposed within the receiving cavity, wherein the adjusting screw passes through the internally threaded nut and engages with the internally threaded nut threadedly.

[0014] Furthermore, the limiting assembly also includes: a rotary handle, one end of which extends out of the receiving cavity from the control opening of the housing assembly and is connected to the end of the adjusting screw away from the braking assembly; and a bearing portion disposed within the receiving cavity, the bearing portion being closer to the control opening relative to the internal threaded nut, and the rotary handle passing through the bearing portion.

[0015] Furthermore, the housing assembly includes a first housing and a second housing that are spliced ​​together, the splicing surface of the first housing and the second housing being parallel to the axis of the housing assembly, and mounting wings being provided on the circumferential outer sidewall of the first housing and the circumferential outer sidewall of the second housing respectively; and / or the circumferential inner sidewall of the housing assembly has an annular protrusion, the annular protrusion dividing the receiving cavity into a first cavity and a second cavity that are interconnected, the braking assembly being movably disposed inside the second cavity, at least a portion of the limiting assembly being located in the first cavity, and at least another portion of the limiting assembly being located in the second cavity.

[0016] According to another aspect of the present invention, a turntable is provided, including the aforementioned holding mechanism.

[0017] Furthermore, the turntable includes at least two retaining mechanisms, which are symmetrically arranged about the ball chamber of the turntable.

[0018] Applying the technical solution of this utility model, the retaining mechanism in this application includes a housing assembly, a braking assembly, and a limiting assembly. The housing assembly has a receiving cavity and a stop opening communicating with the receiving cavity; at least a portion of the braking assembly is movably disposed within the receiving cavity, and the braking assembly has a locked state and an unlocked state; at least a portion of the limiting assembly is disposed within the receiving cavity, and the limiting assembly has a limited position and an unlocked position; when the braking assembly is in the unlocked state, the end of the braking assembly away from the limiting assembly can extend out of or retract into the receiving cavity through the stop opening; when the limiting assembly is in the unlocked position, the braking assembly can switch between the locked state and the unlocked state.

[0019] In existing technology, when the back cover of the photoelectric turntable is removed, the ball chamber of the photoelectric turntable loses its weight balance and will tilt under the influence of gravity. When replacing or maintaining it on site, the ball chamber of the photoelectric turntable needs to be kept in a horizontal position. At this time, more maintenance personnel are needed. One person needs to keep the turntable in a horizontal state while another person performs the replacement. When adjusting the optical axis on site, it is necessary to align it with a reference object, and the ball chamber of the photoelectric turntable needs to maintain a specific posture. When using the retaining mechanism described in this application, since the retaining mechanism has a housing assembly, it can be mounted on the main beam wall of the photoelectric turntable via the housing assembly. Because the retaining mechanism also has a braking assembly and a limiting assembly, when the photoelectric turntable needs to be disassembled on-site, after the ball chamber of the turntable is rotated to the required posture in a balanced state, the limiting assembly can be kept in the unlocked position. At this time, the braking assembly can be switched from the locked state to the unlocked state. After the braking assembly is switched to the unlocked state, the operator can operate the braking assembly to extend the end of the braking assembly away from the limiting assembly out of the receiving cavity and abut against the ball chamber of the turntable. After the braking assembly has moved into position, the limiting assembly can be adjusted and switched from the unlocked position to the limiting position, thereby allowing the braking assembly to keep pressing against the outer wall of the ball chamber, thus keeping the ball chamber of the turntable in its current position. After the photoelectric turntable is replaced or repaired, the limiting assembly can be switched from the limiting position to the unlocked position first, and then the braking assembly can be operated to retract the part of the braking assembly extending out of the receiving cavity into the receiving cavity, thereby releasing the positioning and retaining function of the ball chamber. In other words, when using the holding mechanism of this application, the braking component extends out of the receiving cavity and remains in contact with the ball compartment of the turntable under the limiting action of the limiting component, enabling positioning of the ball compartment at any angle. Therefore, the holding mechanism of this application can meet the need for quick replacement and adjustment of the optical axis by a single person, greatly increasing the convenience of maintenance and reducing the cost of equipment transportation and manpower. Thus, the holding mechanism of this application effectively solves the problems of high maintenance costs and difficult operation of turntables in the prior art. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0021] Figure 1 A schematic diagram of the structure of a retaining mechanism according to a specific embodiment of the present invention is shown;

[0022] Figure 2 It shows Figure 1 A cross-sectional view of the retaining mechanism in the middle;

[0023] Figure 3 It shows Figure 1 Exploded view of the retaining mechanism in the middle;

[0024] Figure 4 A schematic diagram of the turntable according to a specific embodiment of this application is shown.

[0025] The above figures include the following reference numerals:

[0026] 10. Housing assembly; 11. Receiving cavity; 12. Stop opening; 13. Adjustment opening; 131. First section; 132. Second section; 14. Control opening; 15. First housing; 16. Second housing; 17. Mounting wing; 18. Annular protrusion; 181. First cavity; 182. Second cavity; 20. Braking assembly; 21. Adjustment protrusion; 22. Braking push rod; 23. Reset component; 30. Limiting assembly; 31. Adjusting screw; 32. Internal threaded nut; 33. Rotating handle; 34. Bearing part; 40. Ball chamber; 50. Headless fixing screw. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] To address the problems of high maintenance costs and operational difficulties of turntables in existing technologies, this application provides a holding mechanism and a turntable.

[0031] Furthermore, the turntable in this application has the following retaining mechanism.

[0032] like Figures 1 to 4 As shown, the retaining mechanism in this application includes a housing assembly 10, a braking assembly 20, and a limiting assembly 30. The housing assembly 10 has a receiving cavity 11 and a stop opening 12 communicating with the receiving cavity 11; at least a portion of the braking assembly 20 is movably disposed within the receiving cavity 11, and the braking assembly 20 has a locked state and an unlocked state; at least a portion of the limiting assembly 30 is disposed within the receiving cavity 11, and the limiting assembly 30 has a limited position and an unlocked position; when the braking assembly 20 is in the unlocked state, the end of the braking assembly 20 away from the limiting assembly 30 can extend out of or retract into the receiving cavity 11 through the stop opening 12; when the limiting assembly 30 is in the unlocked position, the braking assembly 20 can switch between the locked state and the unlocked state.

[0033] In the existing technology, when the back cover of the photoelectric turntable is removed, the ball chamber 40 of the photoelectric turntable loses its weight balance and will tilt under the influence of gravity. When replacing or maintaining it on site, the ball chamber 40 of the photoelectric turntable needs to be kept in a horizontal position. At this time, more maintenance personnel are needed. One person needs to keep the turntable in a horizontal state while another person performs the replacement. When adjusting the optical axis on site, it is necessary to align it with a reference object, and the ball chamber 40 of the photoelectric turntable needs to maintain a specific posture. When using the holding mechanism in this application, since the holding mechanism has a housing assembly 10, the holding mechanism can be installed on the main beam wall of the photoelectric turntable through the housing assembly 10. At this time, since the holding mechanism also has a braking assembly 20 and a limiting assembly 30, when the photoelectric turntable needs to be disassembled on site, after the ball chamber 40 of the turntable is rotated to the required posture in the balance state, the limiting assembly 30 can be kept in the unlocked position first. At this time, the braking assembly 20 can be switched from the locked state to the unlocked state. After the braking assembly 20 is switched to the unlocked state, the operator can operate the braking assembly 20 and make the end of the braking assembly 20 away from the limiting assembly 30 extend out of the receiving cavity 11 and abut against the ball chamber 40 of the turntable. After the braking assembly 20 moves into place, the limiting assembly 30 is adjusted and switched from the unlocked position to the limiting position, so that the braking assembly 20 can keep pressing against the outer wall of the ball chamber 40, thereby keeping the ball chamber 40 of the turntable in the current position. After replacing and repairing the photoelectric turntable, the limiting component 30 can be switched from the limiting position to the unlocked position. Then, the braking component 20 can be operated to retract the portion of the braking component 20 extending from the receiving cavity 11, thereby releasing its positioning and holding function on the ball chamber 40. In other words, using the holding mechanism of this application, by extending the braking component 20 from the receiving cavity 11 and maintaining contact with the turntable ball chamber 40 under the limiting action of the limiting component 30, positioning of the ball chamber 40 at any angle can be achieved. Therefore, using the holding mechanism of this application can meet the needs of quick replacement and adjustment of the optical axis by a single person, greatly increasing the convenience of maintenance and reducing the cost of equipment transportation and manpower. Therefore, the holding mechanism of this application effectively solves the problems of high turntable maintenance costs and high operational difficulty in the prior art.

[0034] It should be added that, in order to further ensure the limiting or positioning effect of the retaining mechanism on the ball chamber 40 of the turntable, at least two retaining mechanisms symmetrically arranged about the ball chamber 40 can be set on the turntable. This effectively ensures the stability of the ball chamber 40 under force when the two retaining mechanisms are used to abut against it. Technically, the symmetrical arrangement of the two retaining mechanisms ensures the balance of the turntable during attitude maintenance, preventing the tilting of the ball chamber 40 caused by unilateral support. In principle, the two retaining mechanisms, through the cooperation of independent braking components 20 and limiting components 30, utilize the locking principle of the mechanical structure to maintain the attitude of the ball chamber 40. The symmetrical arrangement utilizes the principle of mechanical balance to ensure the balance of the turntable. In terms of effect, the technical solution in this embodiment ensures that the turntable maintains a stable attitude during maintenance or component replacement, improving the safety of on-site operations. In other embodiments, the attitude maintenance effect can be further optimized by increasing the number of retaining mechanisms or changing their layout, addressing support requirements in specific application scenarios.

[0035] Specifically, when the limiting component 30 is in the limiting position, it abuts against the end of the braking component 20 away from the stop opening 12. With this configuration, after the end of the braking component 20 away from the limiting component 30 extends out of the receiving cavity 11 from the stop opening 12 and abuts against the ball chamber 40 of the turntable, adjusting the limiting component 30 to the limiting position ensures that the limiting component 30 abuts against the braking component 20 and keeps the braking component 20 extended out of the stop opening 12. This guarantees that the braking component 20 remains in contact with the ball chamber 40 of the turntable, thus ensuring the limiting or positioning effect on the ball chamber 40. In other embodiments, the fixing effect can be further improved by increasing the contact area of ​​the limiting component 30 or changing the material of the contact surface, solving the support problem under high load or vibration environments.

[0036] Optionally, when the braking assembly 20 switches between a locked state and an unlocked state, the braking assembly 20 rotates about the axis of the housing assembly 10.

[0037] Optionally, when the end of the braking assembly 20 away from the limiting assembly 30 extends out of or retracts into the receiving cavity 11, the braking assembly 20 moves axially along the housing assembly 10.

[0038] In this application, the design of the rotation and axial movement of the braking component 20 enables flexible switching between different states, ensuring its adaptability to various posture holding requirements. Of course, regarding the state switching method of the braking component 20 in this application, the movement formation of the braking component 20 can also be set to other forms, provided that the normal function of the braking component 20 can be guaranteed.

[0039] Specifically, the circumferential sidewall of the housing assembly 10 has an adjustment opening 13 communicating with the receiving cavity 11. The braking assembly 20 is provided with an adjustment protrusion 21 corresponding to the adjustment opening 13. One end of the adjustment protrusion 21 extends out of the receiving cavity 11 through the adjustment opening 13 and can move along the adjustment opening 13. That is to say, in this application, when the operator needs to adjust the position or state of the braking assembly 20, the rotation or axial movement of the braking assembly 20 can be achieved by adjusting the part of the adjustment protrusion 21 extending out of the adjustment opening 13. This allows the braking assembly 20 to switch between a locked state and an unlocked state. Furthermore, after the braking assembly 20 is switched to the unlocked state, the end of the braking assembly 20 away from the limiting assembly 30 can be controlled to extend out of the stop opening 12 or retract into the receiving cavity 11.

[0040] In one specific embodiment of this application, the adjustment opening 13 includes a first segment 131 and a second segment 132 connected sequentially. When the braking assembly 20 switches between a locked state and an unlocked state, the adjustment protrusion 21 moves along the first segment 131; when the braking assembly 20 extends from the stop opening 12 or retracts into the receiving cavity 11, the adjustment protrusion 21 moves along the second segment 132. Furthermore, in this embodiment, when the adjustment protrusion 21 moves from the end of the first segment 131 away from the second segment 132 to the end where the first segment 131 and the second segment 132 are connected, the braking assembly 20 switches from a locked state to an unlocked state. And when the adjustment protrusion 21 moves from the end where the first segment 131 and the second segment 132 are connected to the end of the first segment 131 away from the second segment 132, the braking assembly 20 switches from an unlocked state to a locked state. When the adjusting protrusion 21 moves from the end where the first segment 131 and the second segment 132 are connected to the end where the second segment 132 is away from the first segment 131, the end of the braking assembly 20 away from the limiting assembly 30 extends out of the receiving cavity 11 and the stop opening 12. Furthermore, when the adjusting protrusion 21 moves from the end where the second segment 132 is away from the first segment 131 to the end where the first segment 131 and the second segment 132 are connected, the end of the braking assembly 20 away from the limiting assembly 30 retracts into the receiving cavity 11.

[0041] Specifically, the first segment 131 extends circumferentially along the housing assembly 10; and the second segment 132 extends axially along the housing assembly 10. That is to say, in this application, the shape of the adjustment opening 13 is approximately L-shaped, and the shape of the first segment 131 of the adjustment opening 13 is arc-shaped. Of course, in this application, while ensuring the movement effect of the braking assembly 20, the shape of the adjustment opening 13 can also be designed as other structures.

[0042] Therefore, in this application, the specific shape of the adjustment opening 13 mainly serves to limit the movement of the braking component 20, thereby ensuring the accuracy of the movement of the braking component 20 and thus ensuring the performance of the holding mechanism in this application.

[0043] Specifically, the braking assembly 20 includes a brake push rod 22 and a reset member 23. The brake push rod 22 has a locked state and an unlocked state, and the end of the brake push rod 22 away from the limiting component 30 can extend or retract from the receiving cavity 11 through the stop opening 12. One end of the reset member 23 abuts against the brake push rod 22, and the other end of the reset member 23 abuts against the housing assembly 10, providing a force for the brake push rod 22 to extend out of the receiving cavity 11. In this application, by setting the brake push rod 22, the supporting effect of the braking assembly 20 on the ball chamber 40 of the turntable can be ensured. That is, the end of the brake push rod 22 away from the limiting component 30 can extend or retract from the receiving cavity 11 through the stop opening 12, and the brake push rod 22 can achieve positioning support for the ball chamber 40 after extending out of the receiving cavity 11. The purpose of setting the reset member 23 in this application is to ensure that the brake push rod 22 can extend out of the receiving cavity 11 more quickly after switching from the locked state to the unlocked state, and also to prevent the brake push rod 22 from jamming. Therefore, in this application, when the brake push rod 22 is in the locked state, the reset member 23 is in the compressed state. Therefore, in this embodiment, the brake push rod 22 is provided with an adjustment protrusion 21.

[0044] Furthermore, in this application, the reset element 23 can be a spring. In one specific embodiment, one end of the spring can be sleeved on the brake push rod 22, and the end of the brake push rod 22 corresponding to the spring can have a protruding structure, thereby engaging the protruding structure with one end of the spring and preventing the spring from separating from the brake push rod 22. Of course, in this application, the brake push rod 22 and the spring can also be connected or cooperate in other ways.

[0045] Optionally, the end of the housing assembly 10 away from the stop opening 12 also has a control opening 14, and the end of the limiting assembly 30 away from the braking assembly 20 extends out of the receiving cavity 11 through the control opening 14. With this arrangement, the operator can operate the limiting assembly 30 through the portion of the limiting assembly 30 extending out of the control opening 14, thereby ensuring that the operator can more easily operate the limiting assembly 30 so that the limiting assembly 30 can switch between the limited position and the unlocked position.

[0046] In one specific embodiment of this application, the limiting component 30 includes an adjusting screw 31 and an internally threaded nut 32. The adjusting screw 31 has a limiting position and an unlocking position. The internally threaded nut 32 is disposed within the receiving cavity 11, and the adjusting screw 31 passes through the internally threaded nut 32 and is threadedly engaged with it. Through the threaded engagement design of the adjusting screw 31 and the internally threaded nut 32, precise control of the braking component 20 by the limiting component 30 is achieved, ensuring accurate adjustment of the limiting component 30 between the limiting position and the unlocking position. Furthermore, in this application, the internally threaded nut 32 can be fixed to the inner wall of the housing component 10 by a headless fixing screw 50.

[0047] Preferably, the limiting assembly 30 further includes a rotary handle 33 and a bearing portion 34. One end of the rotary handle 33 extends out of the receiving cavity 11 through the control opening 14 of the housing assembly 10 and is connected to the end of the adjusting screw 31 away from the braking assembly 20; the bearing portion 34 is disposed within the receiving cavity 11, with the bearing portion 34 positioned relative to the internal threaded nut 32 and close to the control opening 14, and the rotary handle 33 passes through the bearing portion 34. In this application, the rotary handle 33 ensures that the operator can more easily operate the adjusting screw 31. The bearing portion 34 provides support for the rotary handle 33 and reduces friction, thereby ensuring the service life of the rotary handle 33 and making it easier for the operator to operate the rotary handle 33.

[0048] Furthermore, in this application, the rotary handle 33 and the adjusting screw 31 can be connected by screws.

[0049] Optionally, the housing assembly 10 includes a first housing 15 and a second housing 16 spliced ​​together. The splicing surface of the first housing 15 and the second housing 16 is parallel to the axis of the housing assembly 10, or in other words, the first housing 15 and the second housing 16 are semi-cylindrical, and mounting wings 17 are respectively provided on the circumferential outer walls of the first housing 15 and the second housing 16. Furthermore, in this application, the mounting wings 17 of the first housing 15 and the second housing 16 are located on the same plane. Further, the mounting wings 17 of the first housing 15 are tangent to the circumferential outer wall of the first housing 15, and the mounting wings 17 of the second housing 16 are tangent to the circumferential outer wall of the second housing 16. This arrangement ensures that the assembly can be more stably mounted onto the turntable via the mounting wings 17.

[0050] Optionally, the circumferential inner wall of the housing assembly 10 has an annular protrusion 18, which divides the receiving cavity 11 into a first cavity 181 and a second cavity 182 that are in communication with each other. The braking assembly 20 is movably disposed inside the second cavity 182. At least a portion of the limiting assembly 30 is located in the first cavity 181, and at least another portion of the limiting assembly 30 is located in the second cavity 182. Furthermore, in a specific embodiment of this application, one end of the adjusting screw 31 connected to the rotating handle 33 is located in the first cavity 181, while the end of the adjusting screw 31 away from the rotating handle 33 is located in the second cavity 182. Further, in this application, the circumferential outer wall of the portion of the adjusting screw 31 located in the second cavity 182 has a stop protrusion, and the stop protrusion can stop the annular protrusion 18 of the housing assembly 10, thereby ensuring that the end of the adjusting screw 31 located in the second cavity 182 will not retract into the first cavity 181. In addition, in this application, the reset member 23 can abut against the annular protrusion 18.

[0051] In one specific embodiment of this application, the axes of the brake push rod 22, the adjusting screw 31, and the housing assembly 10 coincide. Furthermore, in this embodiment, the brake push rod 22 and the adjusting screw 31 are spaced apart along the axial direction of the housing assembly 10.

[0052] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0053] 1. Effectively solves the problems of high maintenance costs and difficult operation of existing technology transfer stations;

[0054] 2. Simple structure and stable performance.

[0055] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0056] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0057] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0058] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A retaining mechanism, characterized in that, include: A housing assembly (10) having a receiving cavity (11) and a stop opening (12) communicating with the receiving cavity (11); A braking assembly (20), at least a portion of which is movably disposed within the receiving cavity (11), the braking assembly (20) having a locked state and an unlocked state; A limiting component (30), at least a portion of which is disposed within the receiving cavity (11), the limiting component (30) having a limiting position and an unlocking position; When the braking assembly (20) is in the unlocked state, the end of the braking assembly (20) away from the limiting assembly (30) can extend out of the stop opening (12) or retract into the receiving cavity (11); When the limiting component (30) is in the unlocked position, the braking component (20) can switch between the locked state and the unlocked state.

2. The retaining mechanism according to claim 1, characterized in that, When the limiting component (30) is in the limiting position, the limiting component (30) abuts against the end of the braking component (20) away from the stop opening (12).

3. The retaining mechanism according to claim 1, characterized in that, When the braking assembly (20) switches between the locked state and the unlocked state, the braking assembly (20) rotates about the axis of the housing assembly (10); and / or When the end of the braking assembly (20) away from the limiting assembly (30) extends out of or retracts into the receiving cavity (11), the braking assembly (20) moves axially along the housing assembly (10).

4. The retaining mechanism according to claim 1, characterized in that, The circumferential sidewall of the housing assembly (10) has an adjustment opening (13) communicating with the receiving cavity (11). The braking assembly (20) is provided with an adjustment protrusion (21) corresponding to the adjustment opening (13). One end of the adjustment protrusion (21) extends out of the receiving cavity (11) from the adjustment opening (13) and can move along the adjustment opening (13).

5. The retaining mechanism according to claim 4, characterized in that, The adjustment opening (13) includes a first section (131) and a second section (132) connected in sequence. When the braking assembly (20) switches between the locked state and the unlocked state, the adjusting protrusion (21) moves along the first segment (131); and / or When the braking assembly (20) extends out of the stop opening (12) or retracts into the receiving cavity (11), the adjusting protrusion (21) moves along the second segment (132).

6. The retaining mechanism according to claim 5, characterized in that, The first segment (131) extends circumferentially along the housing assembly (10); and / or The second segment (132) extends axially along the housing assembly (10).

7. The retaining mechanism according to any one of claims 1 to 6, characterized in that, The braking assembly (20) includes: Brake push rod (22), the brake push rod (22) has the locked state and the unlocked state, and the end of the brake push rod (22) away from the limiting component (30) can extend out of the stop opening (12) or retract into the receiving cavity (11); A reset member (23) is provided, one end of which abuts against the brake push rod (22) and the other end of which abuts against the housing assembly (10) to provide a force for the brake push rod (22) to extend out of the receiving cavity (11).

8. The retaining mechanism according to any one of claims 1 to 6, characterized in that, The housing assembly (10) has a control opening (14) at one end away from the stop opening (12), and the limiting assembly (30) extends out of the receiving cavity (11) from the control opening (14) at one end away from the braking assembly (20).

9. The retaining mechanism according to any one of claims 1 to 6, characterized in that, The limiting component (30) includes: An adjusting screw (31) having the limiting position and the unlocking position; An internal threaded nut (32) is disposed in the receiving cavity (11), and the adjusting screw (31) passes through the internal threaded nut (32) and is threadedly engaged with the internal threaded nut (32).

10. The retaining mechanism according to claim 9, characterized in that, The limiting component (30) also includes: A rotating handle (33) is provided, one end of which extends out of the receiving cavity (11) through the control opening (14) of the housing assembly (10) and is connected to the end of the adjusting screw (31) away from the braking assembly (20). A bearing portion (34) is disposed within the receiving cavity (11), the bearing portion (34) is close to the control opening (14) relative to the internal threaded sleeve nut (32), and the rotating handle (33) passes through the bearing portion (34).

11. The retaining mechanism according to any one of claims 1 to 6, characterized in that, The housing assembly (10) includes a first housing (15) and a second housing (16) joined together. The joint surface of the first housing (15) and the second housing (16) is parallel to the axis of the housing assembly (10), and mounting wings (17) are respectively provided on the circumferential outer wall of the first housing (15) and the circumferential outer wall of the second housing (16); and / or The circumferential inner wall of the housing assembly (10) has an annular protrusion (18), which divides the receiving cavity (11) into a first cavity (181) and a second cavity (182) that are in communication with each other. The braking assembly (20) is movably disposed inside the second cavity (182). At least a portion of the limiting assembly (30) is located in the first cavity (181), and at least another portion of the limiting assembly (30) is located in the second cavity (182).

12. A turntable, characterized in that, Includes the retaining mechanism as described in any one of claims 1 to 11.

13. The turntable according to claim 12, characterized in that, The turntable includes at least two holding mechanisms, which are symmetrically arranged about the ball chamber (40) of the turntable.

Images