A locking mechanism
By adopting the structure of fixed seat, drive cylinder, rotating shaft, hinge bar, lock rod and lock seat in the test mechanism, the fixing problems caused by manual operation and cylinder failure are solved, and the self-locking ability and stable locking effect are achieved to ensure that The test work went smoothly.
Patent Information
- Application Number
- CN202111287481.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-11-02
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2041-11-02
AI Technical Summary
In the prior art, the fixing method of the test mechanism has problems such as manual operation and failure of the cylinder, which affects the smooth progress of the test work.
The structure is adopted including a fixed seat, a drive cylinder, a rotating shaft, a hinge bar, a lock rod and a lock seat. When the output end of the drive cylinder extends out, the hinge bar is in a vertical state, and the lock rod and the lock seat form a 90° vertical relationship. To achieve self-locking and fixing, and maintain a locked state when the drive cylinder fails, the drive cylinder output shaft needs to be pushed in reverse to retract to unlock.
The self-locking capability is achieved with a simple structure and good locking effect, ensuring that the test mechanism can remain fixed when the cylinder fails, and improving the stability and smoothness of the test work.
Smart Images
Figure CN113958580B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of structural connection, and in particular to a locking mechanism. Background Art
[0002] For some testing organizations that need to frequently update and replace products, in order to cope with the rapid change of products, their main conduction test components usually need to be frequently replaced, but they need to be well fixed after replacement. The existing fixing method generally uses manual locking with buckles, but manual locking is inconvenient to operate. There are also cylinder connection blocks for locking. However, when the cylinder suddenly fails, the block's restriction on the test component will also be released, further affecting the smooth progress of the test work, which has limitations. Summary of the invention
[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a locking mechanism with a simple structure, good locking effect and self-locking capability.
[0004] The technical solution adopted by the present invention is: the present invention includes a fixed seat, a driving cylinder, a rotating shaft, a hinged bar, a locking rod and a locking seat, the driving cylinder and the rotating shaft are respectively arranged on both sides of the lower end of the fixed seat and the rotating shaft is rotatably matched with the fixed seat, the output end of the driving cylinder is hinged to the rotating shaft, a connecting block is arranged on the rotating shaft, the locking seat is arranged at the upper end of the fixed seat, the middle part of the locking rod is hinged to the locking seat, the lower end of the hinged bar is hinged to the connecting block, the upper end of the hinged bar passes through the fixed seat and is connected to the rear end of the locking rod; when the output end of the driving cylinder is extended, the hinged bar is in a vertical state, and the front end of the locking rod is parallel to the end face of the locking seat.
[0005] Furthermore, a sensing sheet is disposed at one end of the rotating shaft, and a sensor matching with the sensing sheet is disposed at one end of the fixing base close to the sensing sheet.
[0006] Furthermore, a U-shaped block is arranged on the rotating shaft, the open end of the U-shaped block is connected to the rotating shaft, the closed end of the U-shaped block is arranged with an upward bending section, and the upward bending section is hinged to the output end of the driving cylinder.
[0007] Furthermore, a connecting block is provided at the output end of the driving cylinder, and an engaging groove is opened on the connecting block. One end of the upper bend section is located in the engaging groove and is hinged to the connecting block through a cylindrical pin. The two ends of the cylindrical pin respectively pass through the two ends of the connecting block and are sleeved with limit clamps.
[0008] Furthermore, the number of the driving cylinder, the hinge bar, the locking rod, the locking seat and the connecting block are two and they are symmetrically arranged on the fixing seat and the rotating shaft respectively.
[0009] Furthermore, a mounting groove is provided at the lower end of the fixing seat away from the rotating shaft, a cylinder seat is embedded in the mounting groove, fixing blocks are provided at both ends of the cylinder seat, the fixing blocks are connected to the fixing seat, and the driving cylinder is provided on the cylinder seat.
[0010] The beneficial effects of the present invention are as follows: the present invention comprises a fixed seat, a driving cylinder, a rotating shaft, a hinged strip, a locking rod, a locking seat and a connecting block; the driving cylinder and the rotating shaft are arranged on the front and rear sides of the lower end of the fixed seat; the rotating shaft and the fixed seat rotate in coordination; the output end of the driving cylinder is hinged to the rotating shaft so that the rotating shaft can be driven to rotate; the locking seat is arranged on the upper end of the fixed seat; the middle part of the locking rod is hinged to the locking seat so that the locking rod can swing up and down; the connecting block is arranged on the rotating shaft and rotates with the rotation of the rotating shaft; the lower end of the hinged strip is hinged to the connecting block and the upper end passes through the fixed seat and is hinged to the rear end of the locking rod; when the output end of the driving cylinder is extended, the hinged strip is in a vertical state, and the front end of the locking rod is parallel to the end face of the locking seat. At this time The locking rod and the hinged bar form a 90° vertical relationship, and when the driving cylinder does not move, the hinge points of the locking rod and the lock seat and the hinge points of the locking rod and the hinged bar act as brakes, and the lower end of the hinged bar abuts against the connecting block, so that the locking rod and the lock seat remain parallel, and the test mechanism components clamped by the locking rod and the lock seat will also be fixed all the time. Even in the case of failure of the driving cylinder, the locking rod cannot be pulled up. At this time, to release the locked state, it is necessary to push the output shaft of the driving cylinder in the opposite direction to retract it; during the retraction process, the rotating shaft rotates, and the connecting block rotates accordingly, thereby driving the hinged bar to move obliquely, thereby breaking the vertical state, so that the front end of the locking rod can be tilted upward, thereby releasing the lock. Therefore, it can be seen from the above that the overall structure of the present invention is simple and compact, and the locking state is formed by the locking rod and the lock seat, and the locking effect is good. In the locked state, even if the driving cylinder fails, the locked state can be maintained, and it has a self-locking ability, which is conducive to the smooth testing of the test mechanism. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 is a schematic diagram of the three-dimensional structure of the present invention in the unlocked state from a first perspective;
[0012] Figure 2 is a schematic diagram of the three-dimensional structure of the present invention in the second viewing angle in the unlocked state;
[0013] Figure 3 is a schematic diagram of the three-dimensional structure of the present invention in an unlocked state from a third viewing angle;
[0014] Figure 4is a schematic diagram of the three-dimensional structure of the present invention in a locked state from a first viewing angle;
[0015] Figure 5 is a schematic diagram of the three-dimensional structure of the present invention in a second viewing angle in a locked state;
[0016] Figure 6 is a schematic diagram of the three-dimensional structure of the present invention in a locked state from a third viewing angle;
[0017] Figure 7 yes Figure 1 Enlarged view of part A. DETAILED DESCRIPTION
[0018] like Figures 1 to 7As shown, in this embodiment, the present invention includes a fixed seat 1, a driving cylinder 2, a rotating shaft 3, a hinge bar 4, a locking rod 5 and a locking seat 6, the driving cylinder 2 and the rotating shaft 3 are respectively arranged on both sides of the lower end of the fixed seat 1 and the rotating shaft 3 is rotatably matched with the fixed seat 1, the output end of the driving cylinder 2 is hinged to the rotating shaft 3, a connecting block 7 is arranged on the rotating shaft 3, the locking seat 6 is arranged at the upper end of the fixed seat 1, the middle part of the locking rod 5 is hinged to the locking seat 6, the lower end of the hinge bar 4 is hinged to the connecting block 7, the upper end of the hinge bar 4 passes through the fixed seat 1 and is connected to the rear end of the locking rod 5; when the output end of the driving cylinder 2 is extended, the hinge bar 4 is in a vertical state, and the front end of the locking rod 5 is parallel to the end face of the locking seat 6. The present invention comprises a fixed seat 1, a driving cylinder 2, a rotating shaft 3, a hinged bar 4, a locking rod 5, a locking seat 6 and a connecting block 7, wherein the driving cylinder 2 and the rotating shaft 3 are arranged on the front and rear sides of the lower end of the fixed seat 1, the rotating shaft 3 is rotatably matched with the fixed seat 1, the output end of the driving cylinder 2 is hinged to the rotating shaft 3 so that the rotating shaft 3 can be driven to rotate, the locking seat 6 is arranged at the upper end of the fixed seat 1, the middle part of the locking rod 5 is hinged to the locking seat 6 so that the locking rod 5 can swing up and down to achieve locking or unlocking, the connecting block 7 is arranged on the rotating shaft 3 and rotates with the rotation of the rotating shaft 3, the lower end of the hinged bar 4 is hinged to the connecting block 7 and the upper end passes through the fixed seat 1 and is hinged to the rear end of the locking rod 5; when the output end of the driving cylinder 2 is extended, the hinged bar 4 is in a vertical state, the front end of the locking rod 5 is hinged to the locking seat 6 The end faces are parallel to each other, at this time, the locking rod 5 and the hinged strip 4 form a 90° vertical relationship, and when the driving cylinder 2 is not in action, the hinge points of the locking rod 5 and the lock seat 6 and the hinge points of the locking rod 5 and the hinged strip 4 act as brakes, and the lower end of the hinged strip 4 abuts against the connecting block 7, so that the locking rod 5 and the lock seat 6 remain parallel, and the test mechanism components clamped by the locking rod 5 and the lock seat 6 will also be fixed all the time, even in the event of failure of the driving cylinder 2, the locking rod 5 cannot be pulled up, and at this time, to release the locked state, it is necessary to push the output shaft of the driving cylinder 2 in the opposite direction to retract it; during the retraction process, the rotating shaft 3 rotates, and the connecting block 7 rotates with it, thereby driving the hinged strip 4 to move obliquely, thereby breaking the vertical state, so that the front end of the locking rod 5 can be tilted upward, thereby releasing the lock. Therefore, it can be seen from the above that the overall structure of the present invention is simple and compact, and a locking state is formed by the locking rod 5 and the locking seat 6, with a good locking effect. In the locked state, even if the driving cylinder 2 fails, the locked state can be maintained, and it has self-locking ability, which is conducive to the smooth testing of the testing mechanism.
[0019] In this embodiment, a sensing sheet 8 is provided at one end of the rotating shaft 3, and a sensor 9 matched with the sensing sheet 8 is provided at one end of the fixing base 1 close to the sensing sheet 8. The sensing sheet 8 rotates with the rotation of the rotating shaft 3, and the sensor 9 cooperates with the sensing sheet 8 to detect the rotation angle of the rotating shaft 3, thereby determining the driving stroke of the driving cylinder 2 and determining whether the locking rod 5 is in a locked state or an unlocked state, so as to facilitate the operation of the operator.
[0020] In this embodiment, a U-shaped block 10 is provided on the rotating shaft 3, the open end of the U-shaped block 10 is connected to the rotating shaft 3, and the closed end of the U-shaped block 10 is provided with an upper curved section 11, and the upper curved section 11 is hinged to the output end of the driving cylinder 2. The driving cylinder 2 is hinged to the rotating shaft 3 through the U-shaped block 10 and the upper curved section 11, the open end of the U-shaped block 10 is fixedly connected to the rotating shaft 3, and the upper curved section 11 is bent upward so that the driving cylinder 2 can better drive the rotating shaft 3 to rotate, and the U-shaped block 10 and the upper curved section 11 are integrally formed.
[0021] In this embodiment, a linkage block 12 is provided at the output end of the driving cylinder 2, and an engaging groove 13 is provided on the linkage block 12. One end of the upper curved section 11 is located in the engaging groove 13 and is hinged to the linkage block 12 through a cylindrical pin 14. The two ends of the cylindrical pin 14 respectively pass through the two ends of the linkage block 12 and are sleeved with a limit snap ring 15. The upper curved section 11 is hinged in the engaging groove 13 of the linkage block 12 by means of the cylindrical pin 14, and the two ends of the cylindrical pin 14 are fixed by the limit snap ring 15. Therefore, whether it is during installation or disassembly, the connection between the upper curved section 11 and the linkage block 12 can be released by simple operation, which is convenient for maintenance.
[0022] In this embodiment, the number of the driving cylinder 2, the hinge bar 4, the locking rod 5, the locking seat 6 and the connecting block 7 are two and they are symmetrically arranged on the fixing seat 1 and the rotating shaft 3. The two driving cylinders 2 act synchronously to drive the rotating shaft 3 to rotate, so that the driving force is more sufficient, and the two locking rods 5 and the two locking seats 6 can fix two points of the test mechanism, the overall fixing effect is better, and the test mechanism is more stable.
[0023] In this embodiment, a mounting groove 16 is provided at the lower end of the fixing base 1 on a side away from the rotating shaft 3, a cylinder base 17 is embedded in the mounting groove 16, fixing blocks 18 are provided at both ends of the cylinder base 17, the fixing blocks 18 are connected to the fixing base 1, and the driving cylinder 2 is provided on the cylinder base 17. The cylinder base 17 is fixedly connected to the fixing base 1 through two fixing blocks 18, and the mounting groove 16 provided on the fixing base 1 can limit the cylinder base 17, thereby maintaining stability during driving. The embedded installation method of the cylinder base 17 can facilitate operation during installation or maintenance, and can ensure the compactness of the overall structure.
[0024] Although the embodiments of the present invention are described with practical solutions, they do not constitute limitations on the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme and combine it with other solutions based on this description.
Claims
1. A locking mechanism, characterized in that: It comprises a fixed seat (1), a driving cylinder (2), a rotating shaft (3), a hinge bar (4), a locking rod (5) and a locking seat (6); the driving cylinder (2) and the rotating shaft (3) are respectively arranged on both sides of the lower end of the fixed seat (1); the rotating shaft (3) and the fixed seat (1) are rotatably matched; the output end of the driving cylinder (2) is hingedly connected to the rotating shaft (3); the rotating shaft (3) is provided with a connecting block (7); the locking seat (6) is provided with a At the upper end of the fixing seat (1), the middle part of the locking rod (5) is hinged to the locking seat (6), the lower end of the hinge bar (4) is hinged to the connecting block (7), and the upper end of the hinge bar (4) passes through the fixing seat (1) and is connected to the rear end of the locking rod (5); when the output end of the driving cylinder (2) is extended, the hinge bar (4) is in a vertical state, and the front end of the locking rod (5) is parallel to the end surface of the locking seat (6).
2. A locking mechanism according to claim 1, characterized in that: A sensing sheet (8) is disposed at one end of the rotating shaft (3), and a sensor (9) matching with the sensing sheet (8) is disposed at one end of the fixing seat (1) close to the sensing sheet (8).
3. A locking mechanism according to claim 1, characterized in that: A U-shaped block (10) is provided on the rotating shaft (3), the open end of the U-shaped block (10) is connected to the rotating shaft (3), and the closed end of the U-shaped block (10) is provided with an upper curved section (11), and the upper curved section (11) is hinged to the output end of the driving cylinder (2).
4. A locking mechanism according to claim 3, characterized in that: The output end of the driving cylinder (2) is provided with a linkage block (12), the linkage block (12) is provided with an engaging groove (13), one end of the upper curved section (11) is located in the engaging groove (13) and is hingedly connected to the linkage block (12) via a cylindrical pin (14), and the two ends of the cylindrical pin (14) respectively pass through the two ends of the linkage block (12) and are sleeved with a limit clamp (15).
5. A locking mechanism according to claim 1, characterized in that: The driving cylinder (2), the hinge bar (4), the locking rod (5), the locking seat (6) and the connecting block (7) are each provided in two pieces and are symmetrically arranged on the fixing seat (1) and the rotating shaft (3).
6. A locking mechanism according to claim 1, characterized in that: A mounting groove (16) is provided at a side of the lower end of the fixing seat (1) away from the rotating shaft (3), a cylinder seat (17) is embedded in the mounting groove (16), fixing blocks (18) are provided at both ends of the cylinder seat (17), the fixing blocks (18) are connected to the fixing seat (1), and the driving cylinder (2) is arranged on the cylinder seat (17).
Citation Information
Patent Citations
Locking mechanism
CN217440436U