A connecting locking mechanism

By using a modularly designed connection and locking mechanism, which incorporates steel ball locking and a conical cavity structure, the problem of poor fastening effect during long-distance operation within the hot chamber is solved, achieving precise positioning and stable connection of the equipment.

CN119825797BActive Publication Date: 2025-10-28THE 404 COMPANY LIMITED CHINA NAT NUCLEAR
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Patent Information

Application Number
CN202510196157.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2025-10-28
Estimated Expiration
2045-02-21

AI Technical Summary

Technical Problem

Existing connection locking mechanisms have poor fastening effect, low positioning accuracy, and poor compatibility when operating remotely in a hot chamber.

Method used

The modularly designed connection and locking mechanism includes a locking rod, a locking sleeve, a pressure sleeve, a connecting column, and a pressure part. It achieves precise positioning and locking through a steel ball locking method and a conical cavity structure, eliminating the need for a positioning process.

Benefits of technology

It improves the accuracy and stability of disassembly, assembly, and fastening operations of equipment inside the hot chamber, ensures the rigidity and alignment of connectors, and enhances the installation accuracy and reliability of the device.

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Abstract

This invention provides a connecting locking mechanism, relating to the field of mechanical connection technology. The solution includes: a locking vertical rod, connected at the bottom to a second device, with its upper part penetrating through a first device and having multiple locking grooves; a locking sleeve, connected at the bottom to the first device, with its upper part inserted into the bottom of its inner cavity; multiple exposed holes on the outer wall of the locking sleeve communicating with multiple receiving cavities, the exposed holes corresponding to the multiple locking grooves; a pressure-applying sleeve slidably connected to the outside of the locking sleeve, with a clearance cavity formed at the bottom of its inner cavity, and a conical cavity formed between the clearance cavity and the inner cavity of the pressure-applying sleeve; a connecting post, with its upper part connected to the drive end of a power tool and its bottom threadedly connected to the upper part of the inner cavity of the locking sleeve; and a pressure-applying part connected to the connecting post and rotatably connected to the pressure-applying sleeve. This invention, by modularly integrating the fastening device into the equipment, eliminates the positioning process and solves the technical problem of low fastening effectiveness caused by long-distance operation within a hot chamber.
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Description

Technical Field

[0001] This invention relates to the field of mechanical connection technology, and in particular to a connection locking mechanism. Background Technology

[0002] Connection locking mechanisms are widely used in various equipment and systems, playing an indispensable role in ensuring safety, guaranteeing normal equipment operation, and achieving precision machining.

[0003] Due to the special environment inside the hot chamber, personnel cannot enter directly. Therefore, the disassembly of equipment in the hot chamber usually needs to consider the problem of remote operation. Existing connection and locking mechanisms, such as bolt fastening, spring pin positioning, and pneumatic clamps, all require positioning before starting the fastening. This method has low positioning accuracy and poor compatibility. Even a small positional deviation under remote operation can have a significant impact on the fastening effect of the equipment.

[0004] Therefore, there is an urgent need for a connection and locking mechanism to solve the technical problem of poor fastening effect caused by long-distance operation in the hot chamber. Summary of the Invention

[0005] This invention provides a connection locking mechanism, which aims to solve the technical problem of poor fastening effect caused by long-distance operation in the hot chamber.

[0006] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0007] This invention provides a connection locking mechanism, comprising:

[0008] A locking rod is provided, the bottom of which is connected to the second device, and the upper part of which penetrates the first device; the upper part of the locking rod is formed with multiple locking grooves.

[0009] A locking sleeve, the bottom of which is connected to the first device, and the upper part of the locking rod is inserted into the bottom of the inner cavity of the locking sleeve; the outer wall of the locking sleeve is provided with multiple receiving cavities, and the inner wall of the locking sleeve is provided with multiple protruding holes, which communicate with multiple receiving cavities and correspond to multiple locking grooves;

[0010] Multiple steel balls are arranged inside multiple receiving cavities;

[0011] A pressure sleeve is slidably connected to the outside of the locking sleeve. A relief cavity is formed at the bottom of the inner cavity of the pressure sleeve. The inner wall of the relief cavity is away from the outer wall of the locking sleeve. A conical cavity is formed between the relief cavity and the inner cavity of the pressure sleeve. When the pressure sleeve descends, the conical cavity contacts multiple steel balls, pushing the ends of the multiple steel balls through multiple exposed holes and into multiple locking grooves.

[0012] A connecting post, the upper part of which is connected to the drive end of the power tool; the bottom of which is threadedly connected to the upper part of the inner cavity of the locking sleeve;

[0013] The pressure-applying part is connected to the connecting column and is rotatably connected to the pressure-applying sleeve.

[0014] Optionally, the pressure-applying part includes:

[0015] A lower pressure plate, which is formed on the side wall of the connecting column;

[0016] A first retaining ring is formed at the top of the inner cavity of the pressure sleeve;

[0017] The second retaining ring is formed at the top of the inner cavity of the pressure sleeve, and is located below the first retaining ring. The inner diameter of the second retaining ring is larger than the inner diameter of the first retaining ring.

[0018] A bushing cover is connected to the bottom surface of the lower pressure plate, and the bottom surface of the bushing cover abuts against the upper surface of the pressure sleeve. The connecting post passes through the first through hole in the center of the bushing cover.

[0019] The third retaining ring has a connecting post that passes through a second through hole in the center of the third retaining ring. The third retaining ring is connected to the bottom surface of the bushing cover and is located inside the first retaining ring.

[0020] The fourth retaining ring has a connecting post that passes through a third through hole in the center of the fourth retaining ring. The fourth retaining ring is formed on the bottom surface of the third retaining ring and is located inside the second retaining ring. The bottom surface of the first retaining ring abuts against the top surface of the fourth retaining ring.

[0021] Optionally, the lower pressure plate is detachably connected to the bushing cover by a first bolt, and the bushing cover is detachably connected to the third retaining ring and the fourth retaining ring by a second bolt.

[0022] Optional, also includes:

[0023] The mounting groove is formed on the surface of the second device. The bottom of the locking rod is formed with a mounting side plate. The mounting side plate is installed in the mounting groove by fastening bolts. The upper surface of the mounting side plate abuts against the first device.

[0024] Optional, also includes:

[0025] A connecting plate, the top surface of which is detachably connected to the bottom surface of the locking sleeve by fastening bolts, the bottom surface of which is detachably connected to the first device by fastening bolts, a fourth through hole is provided on the surface of the connecting plate, and a fifth through hole is provided on the first device;

[0026] The locking rod passes through the fifth through hole and the fourth through hole in sequence.

[0027] Optional, also includes:

[0028] A fixed base is connected to the top surface of the pressure sleeve by fastening bolts, and the drive end of the power tool abuts against the top surface of the fixed base;

[0029] The fixed base has an edge-formed guide block, and the guide block has an inwardly formed guide radius.

[0030] Optional, also includes:

[0031] A long groove is formed on the outer wall of the pressure sleeve, and the long groove is located above the conical cavity;

[0032] A blind hole is formed on the outer wall of the locking sleeve, and the blind hole corresponds to the elongated groove;

[0033] A locating pin is threadedly connected to the blind hole and slides with the long groove.

[0034] Optionally, when the positioning pin is located at the bottom of the long groove, the steel ball corresponds to the clearance cavity.

[0035] Optionally, the clearance cavity and the conical cavity have a smooth transition;

[0036] The conical cavity and the inner cavity of the pressure sleeve have a smooth transition.

[0037] Optionally, the inner wall of the locking groove is an arc-shaped structure adapted to the steel ball.

[0038] The above-described solution of the present invention has at least the following beneficial effects:

[0039] This invention enables the assembly, disassembly, and fastening of a first device and a second device within a heated chamber. The locking mechanism is modularized, disassembled into interconnected components: a connecting column, a pressure-applying part, a pressure-applying sleeve, a locking sleeve, and a locking vertical rod. The pressure-applying part is connected to the connecting column, rotatably connected to the pressure-applying sleeve, and slidably connected to the outer side of the locking sleeve. All these components are connected to the first device via the bottom of the locking sleeve. The bottom of the locking vertical rod is connected to the second device, while the upper part of the locking vertical rod penetrates the first device and slidably connects to the locking sleeve. Through the connection and cooperation between these components, precise positioning between the first and second devices is achieved. The lower part of the connecting column is formed with an external thread; the mechanical properties of the threaded connection can change the direction of force, converting rotational stress into axial stress. The pressure-applying part is disposed on the connecting column and is used to synchronize the circumferential and axial movements with the tightening or loosening of the thread. The pressure-applying part is rotatably connected to the pressure-applying sleeve to counteract the rotational movement of the pressure-applying part, retaining only the movement in the axial stress direction. The locking sleeve adopts a steel ball locking method, which provides a large load-bearing capacity through the compression and locking effect of the steel balls, ensuring the stability and reliability of the connector. In the locked state, the steel balls can be evenly distributed on the contact surface of the connector, forming a stable locking force, thereby improving the rigidity and centering of the connector, and thus improving the installation accuracy of the device. The bottom of the inner cavity of the pressure-applying sleeve is formed with a relief cavity. The inner wall of the relief cavity is far away from the outer wall of the locking sleeve. The relief cavity is used to block and limit the steel balls. A conical cavity is formed between the relief cavity and the inner cavity of the pressure-applying sleeve. The conical surface of the inner wall of the conical cavity is used to squeeze and push the ends of multiple steel balls through multiple exposed holes and into multiple locking grooves when the pressure-applying sleeve descends, thereby achieving the locking effect. This invention solves the technical problem of poor fastening effect caused by remote operation in the hot chamber by modularly setting the fastening mechanism in the equipment, thus eliminating the positioning process. Attached Figure Description

[0040] Figure 1 This is a vertical sectional view of the present invention in a relaxed state;

[0041] Figure 2 This is a partial view of the steel ball and the receiving cavity in the relaxed state of the present invention;

[0042] Figure 3 This is a vertical sectional view of the present invention in the locked state;

[0043] Figure 4 This is a partial view of the steel ball and the receiving cavity in the locked state of the present invention;

[0044] Figure 5 This is a vertical sectional view of the connecting column and the pressure-applying part of the present invention;

[0045] Figure 6 This is a vertical sectional view of the locking sleeve of the present invention;

[0046] Figure 7 This is a vertical sectional view of the pressure sleeve of the present invention;

[0047] Figure 8 This is a vertical sectional view of the locking rod of the present invention.

[0048] Explanation of reference numerals in the attached figures:

[0049] 1. Locking vertical rod; 11. Locking groove; 12. Mounting side plate; 2. Locking sleeve; 21. Receiving cavity; 22. Exposed hole; 23. Steel ball; 24. Blind hole; 25. Positioning pin; 3. Pressure sleeve; 31. Clearance cavity; 32. Conical cavity; 33. First retaining ring; 34. Second retaining ring; 35. Long groove; 4. Connecting column; 41. Lower pressure plate; 5. Pressure part; 51. Bushing cover; 511. First through hole; 52. Third retaining ring; 521. Second through hole; 53. Fourth retaining ring; 531. Third through hole; 54. First bolt; 55. Second bolt; 6. First device; 61. Fifth through hole; 7. Second device; 71. Mounting groove; 8. Connecting plate; 81. Fourth through hole; 9. Fixing seat; 91. Guide block; 911. Guide fillet. Detailed Implementation

[0050] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0051] like Figures 1-8 As shown, an embodiment of the present invention provides a connection locking mechanism, comprising:

[0052] A locking rod 1 is provided, the bottom of which is connected to the second device 7, and the upper part of the locking rod 1 passes through the first device 6; the upper part of the locking rod 1 is formed with a plurality of locking grooves 11.

[0053] A locking sleeve 2 is provided, the bottom of which is connected to the first device 6, and the upper part of the locking vertical rod 1 is inserted into the bottom of the inner cavity of the locking sleeve 2; the outer wall of the locking sleeve 2 is provided with a plurality of receiving cavities 21, and the inner wall of the locking sleeve 2 is provided with a plurality of protruding holes 22, which communicate with the plurality of receiving cavities 21 and correspond to the plurality of locking grooves 11;

[0054] Multiple steel balls 23 are disposed inside multiple receiving cavities 21;

[0055] A pressure sleeve 3 is slidably connected to the outside of the locking sleeve 2. A relief cavity 31 is formed at the bottom of the inner cavity of the pressure sleeve 3. The inner wall of the relief cavity 31 is away from the outer wall of the locking sleeve 2. A conical cavity 32 is formed between the relief cavity 31 and the inner cavity of the pressure sleeve 3. When the pressure sleeve 3 descends, the conical cavity 32 contacts multiple steel balls 23, pushing the ends of the multiple steel balls 23 through multiple exposed holes 22 and into multiple locking grooves 11.

[0056] Connecting post 4, the upper part of which is connected to the drive end of the power tool; the bottom of the connecting post 4 is threadedly connected to the upper part of the inner cavity of the locking sleeve 2;

[0057] The pressure-applying part 5 is connected to the connecting column 4 and is rotatably connected to the pressure-applying sleeve 3.

[0058] In this embodiment, when the first device 6 and the second device 7 need to be locked, a power tool is hoisted above the connecting locking mechanism using a power hook, causing the power tool to descend until its drive end connects to the upper part of the connecting column 4. The internal motor of the power tool is then started, driving the power tool connector to rotate clockwise relative to the locking sleeve 2. The connecting column 4 descends using the threaded connection between its bottom and the upper part of the inner cavity of the locking sleeve 2. The pressure part 5 descends along with the connecting column 4, causing the pressure sleeve 3 to descend vertically relative to the locking sleeve 2. This brings the conical cavity 32 into contact with the multiple steel balls 23, pushing the ends of the steel balls 23 through the multiple exposed holes 22 and into the multiple locking grooves 11, thereby locking the first device 6 and the second device 7 together. Locking of device 7: When the first device 6 and the second device 7 need to be separated, a power tool is hoisted above the connecting locking mechanism using a power hook, and the power tool is lowered until the drive end of the power tool is connected to the upper part of the connecting column 4. The internal motor of the power tool is started, which drives the power tool connector to rotate counterclockwise relative to the locking sleeve 2. The bottom of the connecting column 4 is connected to the upper part of the inner cavity of the locking sleeve 2 by a thread, which causes the connecting column 4 to rise. The pressure part 5 rises with the connecting column 4 and drives the pressure sleeve 3 to rise vertically relative to the locking sleeve 2. The conical cavity 32 disengages from the multiple steel balls 23, and the multiple steel balls 23 lose their compressive force and disengage from the locking groove 11, thereby realizing the release of the locking between the first device 6 and the second device 7.

[0059] This invention enables the assembly, disassembly, and fastening of the first device 6 and the second device 7 within a hot chamber. The connecting locking mechanism is modularized, disassembled into interconnected components: a connecting column 4, a pressure-applying part 5, a pressure-applying sleeve 3, a locking sleeve 2, and a locking vertical rod 1. The pressure-applying part 5 is connected to the connecting column 4, rotatably connected to the pressure-applying sleeve 3, and slidably connected to the outer side of the locking sleeve 2. All these components are connected to the first device 6 via the bottom of the locking sleeve 2. The bottom of the locking vertical rod 1 is connected to the second device 7, while the upper part of the locking vertical rod 1 penetrates the first device 6 and slidably connects to the locking sleeve 2. Through the connection and cooperation between these components, precise positioning between the first device 6 and the second device 7 is indirectly achieved.

[0060] The upper part of the connecting post 4 is formed with a hexagonal connector, which is connected to the drive end of the power tool to provide rotational power and allows for free change of direction. The lower part of the connecting post 4 is formed with an external thread. The mechanical characteristics of the threaded connection can change the direction of force, thereby converting rotational stress into axial stress. The pressure-applying part 5 is disposed on the connecting post 4 and is used to synchronize the circumferential and axial movements with the tightening or loosening of the thread. The pressure-applying part 5 is rotatably connected to the pressure-applying sleeve 3 to counteract the rotational movement of the pressure-applying part 5, retaining only the movement in the axial stress direction.

[0061] The locking sleeve 2 uses steel balls 23 for locking. The compression and locking action of the steel balls 23 provides a large load-bearing capacity, ensuring the stability and reliability of the connector. In the locked state, the steel balls 23 can be evenly distributed on the contact surface of the connector to form a stable locking force, thereby improving the rigidity and alignment of the connector and thus improving the accuracy of the device installation.

[0062] The bottom of the inner cavity of the pressure sleeve 3 is formed with a relief cavity 31. The inner wall of the relief cavity 31 is away from the outer wall of the locking sleeve 2. The relief cavity 31 is used to block and limit the steel balls 23. A conical cavity 32 is formed between the relief cavity 31 and the inner cavity of the pressure sleeve 3. The conical surface of the inner wall of the conical cavity 32 is used to squeeze and push the ends of multiple steel balls 23 through multiple exposed holes 22 and into multiple locking grooves 11 when the pressure sleeve 3 descends, thereby achieving the locking effect. In summary, by modularly setting the fastening mechanism in the equipment, the present invention omits the positioning process and solves the technical problem of poor fastening effect caused by long-distance operation in the hot chamber.

[0063] like Figure 1 , Figure 3 , Figure 5 and Figure 7 As shown in the figure, in an optional embodiment of the present invention, the pressure applying part 5 includes:

[0064] Lower pressure plate 41, the lower pressure plate 41 is formed on the side wall of the connecting column 4;

[0065] The first retaining ring 33 is formed on the top of the inner cavity of the pressure sleeve 3;

[0066] The second retaining ring 34 is formed on the top of the inner cavity of the pressure sleeve 3. The second retaining ring 34 is located below the first retaining ring 33. The inner diameter of the second retaining ring 34 is larger than the inner diameter of the first retaining ring 33.

[0067] A bushing cover 51 is connected to the bottom surface of the lower pressure plate 41. The bottom surface of the bushing cover 51 abuts against the upper surface of the pressure sleeve 3. The connecting post 4 passes through the first through hole 511 in the center of the bushing cover 51.

[0068] The third retaining ring 52, the connecting post 4 passes through the second through hole 521 in the center of the third retaining ring 52, the third retaining ring 52 is connected to the bottom surface of the bushing cover 51, and the third retaining ring 52 is located inside the first retaining ring 33;

[0069] The fourth retaining ring 53 has the connecting post 4 passing through the third through hole 531 in the center of the fourth retaining ring 53. The fourth retaining ring 53 is formed on the bottom surface of the third retaining ring 52. The fourth retaining ring 53 is located inside the second retaining ring 34. The bottom surface of the first retaining ring 33 abuts against the top surface of the fourth retaining ring 53.

[0070] In this embodiment, when the first device 6 and the second device 7 need to be locked, the connecting column 4 is rotated clockwise. The bottom of the connecting column 4 is connected to the upper part of the inner cavity of the locking sleeve 2 via a threaded connection, causing the connecting column 4 to descend. The lower pressure plate 41 descends with the connecting column 4, pushing the pressure sleeve 3 downwards via the bushing cover 51. When the locking of the first device 6 and the second device 7 needs to be released, the connecting column 4 is rotated counterclockwise. The bottom of the connecting column 4 is connected to the upper part of the inner cavity of the locking sleeve 2 via a threaded connection, causing the connecting column 4 to rise. The fourth retaining ring 53 rises with the connecting column 4 and drives the first retaining ring 33 to rise, thereby pulling the pressure sleeve 3 upwards.

[0071] The lower pressure plate 41 is formed on the outside of the connecting column 4 and is used to rotate synchronously with the connecting column 4. The bottom surface of the lower pressure plate 41 abuts against the top surface of the bushing cover 51. The first retaining ring 33 is formed on the top of the pressure sleeve 3 and is used to assist in pushing the pressure sleeve 3 to move downward, thereby squeezing the steel ball 23 inward to achieve the locking of the mechanism.

[0072] The bushing cover 51 is disposed between the lower pressure plate 41 and the first retaining ring 33. On the one hand, it is used to push the first retaining ring 33 downward by force, and on the other hand, it provides a seal above the pressure sleeve 3. The bushing cover 51 has a first through hole 511 in the center. The first through hole 511 is used to connect the connecting post 4 through, which improves the positioning accuracy of the device.

[0073] The first retaining ring 33 and the second retaining ring 34 are both formed on the top of the pressure sleeve 3. The inner diameter of the second retaining ring 34 is larger than the inner diameter of the first retaining ring 33, and the second retaining ring 34 is located below the first retaining ring 33. Therefore, the two form a first stepped structure with a larger top and a smaller bottom on the top of the pressure sleeve 3. The top of the pressure sleeve 3 is kept horizontal so as to fit tightly with the bushing cover 51 and increase the force-bearing area.

[0074] Correspondingly, the third retaining ring 52 and the fourth retaining ring 53 are respectively provided with the second through hole 521 and the third through hole 531. The connecting post 4 passes through the first through hole 511, the second through hole 521 and the third through hole 531 in sequence. The connecting post 4 is triple-positioned and calibrated, which further improves the positioning accuracy of the device.

[0075] In terms of position, the third retaining ring 52 is connected to the bottom surface of the bushing cover 51. The third retaining ring 52 is located inside the first retaining ring 33. The fourth retaining ring 53 is formed on the bottom surface of the third retaining ring 52 and is located inside the second retaining ring 34. The two form a second stepped structure with the upper part smaller than the lower part. The bottom surface of the first retaining ring 33 abuts against the top surface of the fourth retaining ring 53 to pull the pressure sleeve 3 upward, thereby returning the position of the steel ball 23 to the relief cavity 31, thus realizing the locking release of the mechanism and further improving the reliability of the connection locking mechanism.

[0076] like Figure 5 As shown, in an optional embodiment of the present invention, the lower pressure plate 41 is detachably connected to the bushing cover 51 by a first bolt 54, and the bushing cover 51 is detachably connected to the third retaining ring 52 and the fourth retaining ring 53 by a second bolt 55.

[0077] In this embodiment, regarding the connection method, the lower pressure plate 41 is detachably connected to the bushing cover 51 via the first bolt 54, and the bushing cover 51 is detachably connected to the third retaining ring 52 and the fourth retaining ring 53 via the second bolt 55. On the one hand, the detachable connection structure facilitates the inspection and replacement of parts. On the other hand, the connection path does not include the pressure sleeve 3. The connecting column 4, the bushing cover 51, the third retaining ring 52, and the fourth retaining ring 53 form a whole to ensure rotational connection with the pressure sleeve 3, thereby realizing that the pressure sleeve 3 only moves up and down in the axial direction, improving the operational stability of the connection locking mechanism.

[0078] like Figure 8 As shown, in an optional embodiment of the present invention, it further includes:

[0079] The mounting groove 71 is formed on the surface of the second device 7. The bottom of the locking vertical rod 1 is formed with a mounting side plate 12. The mounting side plate 12 is installed in the mounting groove 71 by fastening bolts. The upper surface of the mounting side plate 12 abuts against the first device 6.

[0080] In this embodiment, the mounting groove 71 is disposed within the second device 7 to place the mounting side plate 12. The mounting side plate 12 is installed in the mounting groove 71 by fastening bolts to position the locking vertical rod 1, thereby further accurately positioning the first device 6 and the second device 7. The upper surface of the mounting side plate 12 corresponds to the surface of the second device 7 to ensure a tight fit between the first device 6 and the second device 7, reducing working errors.

[0081] like Figure 1 , Figure 3 and Figure 6 As shown, in an optional embodiment of the present invention, it further includes: a connecting plate 8, the top surface of the connecting plate 8 being detachably connected to the bottom surface of the locking sleeve 2 by fastening bolts, the bottom surface of the connecting plate 8 being detachably connected to the first device 6 by fastening bolts, a fourth through hole 81 being formed on the surface of the connecting plate 8, and a fifth through hole 61 being formed on the first device 6;

[0082] The locking rod 1 passes through the fifth through hole 61 and the fourth through hole 81 in sequence.

[0083] In this embodiment, the connecting plate 8 is disposed between the locking sleeve 2 and the first device 6 to serve as a buffer connector to prevent the pressure sleeve 3 from directly contacting the first device 6, thereby reducing mechanical damage and extending service life. In addition, a fourth through hole 81 is opened on the surface of the connecting plate 8, and a fifth through hole 61 is opened on the first device 6. The locking vertical rod 1 passes through the fifth through hole 61 and the fourth through hole 81 in sequence and is slidably connected to the pressure sleeve 3. While the connecting plate 8 plays a connecting role, the consistency of the axial positions of the fourth through hole 81 and the fifth through hole 61 improves the positioning accuracy and further increases the reliability of the device operation.

[0084] Preferably, a mounting boss is formed on the upper part of the mounting side plate 12. The mounting boss passes through the five-way hole 61 of the first device 6. The diameter of the mounting boss is larger than the diameter of the locking vertical rod 1. While ensuring the consistency of the axial position of the fourth through hole 81 and the fifth through hole 61, it is used to achieve the contact between the top surface of the connecting plate 8 and the mounting boss, further improving the connection strength and positioning accuracy.

[0085] like Figure 1 , Figure 3 and Figure 7 As shown, in an optional embodiment of the present invention, it further includes:

[0086] The fixed base 9 is connected to the top surface of the pressure sleeve 3 by fastening bolts, and the drive end of the power tool abuts against the top surface of the fixed base 9.

[0087] The fixed base 9 has an edge-shaped guide block 91, and the guide block 91 has an inwardly shaped guide radius 911.

[0088] In this embodiment, the drive end of the power tool needs to be connected to the upper part of the connecting post 4 to drive the connecting post 4 to rotate synchronously. Preferably, the upper part of the connecting post 4 adopts a hexagonal connector to accommodate different access angles, providing good stability and sealing. The fixing seat 9 provides a bearing plane for the drive end of the power tool. The edge of the fixing seat 9 is formed with a guide block 91, which further restricts the drive end of the power tool, ensuring that the drive end of the power tool is accurately inserted and connected to the connecting post 4. The inwardly formed guide radius 911 of the guide block 91 is used for easy disassembly and replacement, reducing rigid collisions between components and further improving the reliability of the device operation.

[0089] like Figure 1 , Figure 3 , Figure 6 and Figure 7 As shown, in an optional embodiment of the present invention, it further includes:

[0090] The long groove 35 is formed on the outer wall of the pressure sleeve 3 and is located above the conical cavity 32;

[0091] Blind hole 24, the blind hole 24 is formed on the outer wall of the locking sleeve 2, and the blind hole 24 corresponds to the elongated groove 35;

[0092] The positioning pin 25 is threadedly connected to the blind hole 24 and slides with the long groove 35.

[0093] In this embodiment, the sliding engagement of the positioning pin 25 and the elongated groove 35 limits the pressure sleeve 3, preventing it from rotating. This allows the pressure sleeve 3 to descend or rise relative to the locking sleeve 2 under the influence of the pressure part 5, further achieving locking and contact locking, ensuring smooth connection locking. Simultaneously, the positioning pin 25 and the elongated groove 35 limit the pressure sleeve 3, preventing it from disengaging from the locking sleeve 2 when rising.

[0094] The positioning pin 25 is threadedly connected to the blind hole 24, which facilitates the installation and disassembly of the pressure sleeve 3 and the locking sleeve 2, thereby facilitating the installation and disassembly of the entire connection locking mechanism and making it easier to perform maintenance or component replacement of the connection locking mechanism.

[0095] like Figures 1-4 and Figure 7 As shown, in an optional embodiment of the present invention, when the positioning pin 25 is located at the bottom of the elongated groove 35, the steel ball 23 corresponds to the clearance cavity 31.

[0096] In this embodiment, the positioning pin 25 and the steel ball 23 are disposed on the locking sleeve 2, and the elongated groove 35 and the clearance cavity 31 are disposed on the pressure sleeve 3. By limiting the relative positional relationship between the positioning pin 25 and the elongated groove 35, the relative positional relationship between the steel ball 23 and the clearance cavity 31 is limited. When the positioning pin 25 is located at the bottom of the elongated groove 35, the steel ball 23 corresponds to the clearance cavity 31, and the device is in a locked-out state, so that the steel ball 25 can disengage from the locking groove 11 without disengaging from the receiving cavity 21. When the device is in a locked state, the positioning pin 25 is away from the bottom of the elongated groove 35, and the steel ball 23 corresponds to the conical cavity 32. This ensures the locking effect of the device and further improves the reliability of the device.

[0097] like Figures 1-4 and Figure 7As shown, in an optional embodiment of the present invention, the avoidance cavity 31 and the conical cavity 32 have a smooth transition;

[0098] The conical cavity 32 and the inner cavity of the pressure sleeve 3 have a smooth transition.

[0099] In this embodiment, the avoidance cavity 31 and the conical cavity 32 have a smooth transition, and the conical cavity 32 has a smooth transition with the inner cavity of the pressure sleeve 3, so that the steel ball 23 always remains in contact with the inner wall of the pressure sleeve 3 during the operation of the mechanism, avoiding jamming during movement and further improving the stability of the device operation.

[0100] like Figure 8 As shown, in an optional embodiment of the present invention, the inner wall of the locking groove 11 is an arc-shaped structure adapted to the steel ball 23.

[0101] In this embodiment, the inner wall of the locking groove 11 is an arc-shaped structure adapted to the steel ball 23, so that when the device is released, the steel ball 23 can easily dislodge by means of the inclination angle of the arc-shaped structure, further improving the stability of the device operation.

[0102] In summary, the present invention provides a connecting locking mechanism. During the preparation stage, the mounting side plate 12 at the bottom of the locking vertical rod 1 is placed in the mounting groove 71 formed on the surface of the second device 7, with the upper surface of the mounting side plate 12 corresponding to the surface of the second device 7. The two sides of the connecting plate 8 are respectively connected to the bottom of the locking sleeve 2 and the first device 6. The connecting post 4 passes through the bushing cover 51 and the pressure sleeve 3 from above. The third retaining ring 52 and the fourth retaining ring 53 are then connected to the bushing cover 51 from below. The lower pressure plate 41 is detachably connected to the bushing cover 51 via a first bolt 54. The bushing cover 51 is... The second bolt 55 is detachably connected to the third retaining ring 52 and the fourth retaining ring 53, forming a rotatable connection with the pressure sleeve 3. Multiple steel balls 23 are placed inside multiple receiving cavities 21 through the exposed holes 22. The lower end of the connecting column 4 is threaded to the upper part of the inner cavity of the locking sleeve 2. The long groove 35 is aligned with the blind hole 24, and the positioning pin 25 is installed. Finally, the upper part of the locking vertical rod 1 passes sequentially through the first device 6, the connecting plate 8, and the lower part of the inner cavity of the locking sleeve 2 until the locking groove 11 corresponds to the receiving cavity 21. The fixing seat 9 is connected to the top surface of the pressure sleeve 3 by fastening bolts, and the preparation stage is complete.

[0103] During the working phase, when it is necessary to lock the first device 6 and the second device 7, a power hook is used to hoist the power tool above the connecting locking mechanism. The power tool is then lowered until it is completely placed on the fixed base 9. Through the guiding action of the fixed base 9 and the guide block 91, the drive end of the power tool is accurately inserted and connected to the upper part of the connecting column 4. The internal motor of the power tool is started, thereby driving the power tool connector to rotate clockwise relative to the locking sleeve 2. The threads at the bottom of the connecting column 4 and the upper part of the inner cavity of the locking sleeve 2 are used to lock the connection. The connection causes the connecting column 4 to descend. Due to the rotational connection between the pressure-applying part 5 and the pressure-applying sleeve 3, as well as the limiting and guiding effect of the positioning pin 25 and the long groove (35), the pressure-applying part 5 descends with the connecting column 4 and drives the pressure-applying sleeve 3 to descend vertically relative to the locking sleeve 2. The conical cavity 32 contacts the multiple steel balls 23, pushing the ends of the multiple steel balls 23 through the multiple exposed holes 22 and into the multiple locking grooves 11, thereby realizing the locking of the first device 6 and the second device 7.

[0104] When it is necessary to loosen the first device 6 and the second device 7, a power tool is hoisted above the connecting locking mechanism using a power hook. The power tool is then lowered until it is completely placed on the fixed base 9. Through the guiding action of the fixed base 9 and the guide block 91, the drive end of the power tool is accurately inserted and connected to the upper part of the connecting column 4. The internal motor of the power tool is started, which drives the power tool connector to rotate counterclockwise relative to the locking sleeve 2. Utilizing the threaded connection between the bottom of the connecting column 4 and the upper part of the inner cavity of the locking sleeve 2, the connecting column 4 rises. Due to the rotational connection between the pressure part 5 and the pressure sleeve 3, as well as the limiting and guiding action of the positioning pin 25 and the long groove 35, the pressure part 5 rises with the connecting column 4 and drives the pressure sleeve 3 to rise vertically relative to the locking sleeve 2. The conical cavity 32 disengages from the multiple steel balls 23, and the multiple steel balls 23 lose their compressive force and disengage from the locking groove 11, thereby releasing the locking of the first device 6 and the second device 7.

[0105] By modularizing the fastening mechanism within the equipment, the positioning process is eliminated, thus solving the technical problem of poor fastening effect caused by long-distance operation within the hot chamber.

[0106] The above are preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles described in the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A connecting locking mechanism, characterized in that, include: A locking rod (1) is connected at its bottom to a second device (7), and the upper part of the locking rod (1) passes through a first device (6); the upper part of the locking rod (1) is formed with multiple locking grooves (11). A locking sleeve (2) is connected at its bottom to the first device (6), and the upper part of the locking rod (1) is inserted into the bottom of the inner cavity of the locking sleeve (2). The outer wall of the locking sleeve (2) is provided with multiple receiving cavities (21), and the inner wall of the locking sleeve (2) is provided with multiple protruding holes (22). The multiple protruding holes (22) communicate with the multiple receiving cavities (21), and the multiple protruding holes (22) correspond to the multiple locking grooves (11). Multiple steel balls (23) are disposed inside multiple receiving cavities (21); A pressure sleeve (3) is slidably connected to the outside of the locking sleeve (2). A relief cavity (31) is formed at the bottom of the inner cavity of the pressure sleeve (3). The inner wall of the relief cavity (31) is far away from the outer wall of the locking sleeve (2). A conical cavity (32) is formed between the relief cavity (31) and the inner cavity of the pressure sleeve (3). When the pressure sleeve (3) descends, the conical cavity (32) contacts multiple steel balls (23), pushing the ends of the multiple steel balls (23) through multiple exposed holes (22) and into multiple locking grooves (11). The upper part of the connecting post (4) is connected to the drive end of the power tool; the bottom of the connecting post (4) is threaded to the upper part of the inner cavity of the locking sleeve (2). The pressure-applying part (5) is connected to the connecting column (4) and is rotatably connected to the pressure-applying sleeve (3); The pressure-applying part (5) includes: Lower pressure plate (41), the lower pressure plate (41) is formed on the side wall of the connecting column (4); The first retaining ring (33) is formed on the top of the inner cavity of the pressure sleeve (3); The second retaining ring (34) is formed on the top of the inner cavity of the pressure sleeve (3). The second retaining ring (34) is located below the first retaining ring (33). The inner diameter of the second retaining ring (34) is larger than the inner diameter of the first retaining ring (33). The bushing cover (51) is connected to the bottom surface of the lower pressure plate (41). The bottom surface of the bushing cover (51) abuts against the upper surface of the pressure sleeve (3). The connecting column (4) passes through the first through hole (511) in the center of the bushing cover (51). The third retaining ring (52) has the connecting post (4) passing through the second through hole (521) in the center of the third retaining ring (52). The third retaining ring (52) is connected to the bottom surface of the bushing cover (51). The third retaining ring (52) is located inside the first retaining ring (33). The fourth retaining ring (53) has the connecting post (4) passing through the third through hole (531) in the center of the fourth retaining ring (53). The fourth retaining ring (53) is formed on the bottom surface of the third retaining ring (52). The fourth retaining ring (53) is located inside the second retaining ring (34). The bottom surface of the first retaining ring (33) abuts against the top surface of the fourth retaining ring (53).

2. The connecting locking mechanism according to claim 1, characterized in that, The lower pressure plate (41) is detachably connected to the bushing cover (51) by the first bolt (54), and the bushing cover (51) is detachably connected to the third retaining ring (52) and the fourth retaining ring (53) by the second bolt (55).

3. The connecting locking mechanism according to claim 1, characterized in that, Also includes: The mounting groove (71) is formed on the surface of the second device (7). The bottom of the locking rod (1) is formed with a mounting side plate (12). The mounting side plate (12) is installed in the mounting groove (71) by fastening bolts. The upper surface of the mounting side plate (12) abuts against the first device (6).

4. The connecting locking mechanism according to claim 1, characterized in that, Also includes: The top surface of the connecting plate (8) is detachably connected to the bottom surface of the locking sleeve (2) by fastening bolts, and the bottom surface of the connecting plate (8) is detachably connected to the first device (6) by fastening bolts. A fourth through hole (81) is opened on the surface of the connecting plate (8), and a fifth through hole (61) is opened on the first device (6). The locking rod (1) passes through the fifth through hole (61) and the fourth through hole (81) in sequence.

5. The connecting locking mechanism according to claim 1, characterized in that, Also includes: Fixed seat (9), the fixed seat (9) is connected to the top surface of the pressure sleeve (3) by fastening bolts, and the drive end of the power tool abuts against the top surface of the fixed seat (9); The fixed base (9) has an edge-shaped guide block (91), and the guide block (91) has an inwardly shaped guide radius (911).

6. The connecting locking mechanism according to claim 1, characterized in that, Also includes: Long groove (35), the long groove (35) is formed on the outer wall of the pressure sleeve (3), and the long groove (35) is located above the conical cavity (32); Blind hole (24), the blind hole (24) is opened on the outer wall of the locking sleeve (2), the blind hole (24) corresponds to the long groove (35); The positioning pin (25) is threadedly connected to the blind hole (24) and the positioning pin (25) is slidably engaged with the long groove (35).

7. The connecting locking mechanism according to claim 6, characterized in that, When the positioning pin (25) is located at the bottom of the long groove (35), the steel ball (23) corresponds to the clearance cavity (31).

8. The connecting locking mechanism according to claim 1, characterized in that, The clearance cavity (31) and the conical cavity (32) have a smooth transition; The conical cavity (32) and the inner cavity of the pressure sleeve (3) transition smoothly.

9. The connecting locking mechanism according to claim 1, characterized in that, The inner wall of the locking groove (11) is an arc-shaped structure adapted to the steel ball (23).

Citation Information

Patent Citations

  • Locking piece type underwater rapid locking device

    CN105253764A

  • Locking device suitable for high-irradiation environment

    CN209523948U