Locking mechanism and testing device having the same

Abstract

The present invention provides a locking mechanism and a testing device with the locking mechanism, the locking mechanism comprising a frame, a locking assembly and a limit assembly, the locking assembly being installed on the frame, the limit assembly cover being arranged on the frame, the locking assembly comprising a driving member, a transmission unit and a locking member, the driving member being connected to the transmission unit, the transmission unit being connected to the locking member, the limit assembly comprising a limit member, a sliding groove being provided on the limit member, the locking member part being able to extend into the sliding groove, the driving member driving the locking member to move in the sliding groove through the transmission unit, the locking member pressing the limit member toward the frame by sliding in the sliding groove; by arranging the locking assembly and the limit assembly, the locking mechanism can stably install the test head on the test device, and realize the functions of automatic locking and unlocking through the driving member in the locking mechanism.

Description

Technical Field

[0001] The invention relates to the field of testing devices, and in particular to a locking mechanism and a testing device having the locking mechanism. Background Art

[0002] In the existing process of testing integrated circuits, the integrated circuits are often tested by cooperating with a test head (DUT); a spring pin module is installed on a large test head, and the DUT needs to be installed on the test head during testing, so it is necessary to overcome the elastic force problem of the spring pin module. Summary of the invention

[0003] In view of this, it is necessary to provide a locking mechanism, which, through the setting of a locking component and a limit component, the locking shaft in the locking component is clamped in the sliding groove on the limit component and slides in the sliding groove, so that the tested device and the test head can be firmly locked, and the testing of the circuit board can be more automated, freeing up manpower. The test device using the locking mechanism has a broader application prospect.

[0004] The present invention provides a locking mechanism, which includes a frame, a locking assembly and a limiting assembly, wherein the locking assembly is installed on the frame, and the limiting assembly cover is arranged on the frame, the locking assembly includes a driving member, a transmission unit and a locking member, the driving member is connected to the transmission unit, and the transmission unit is connected to the locking member, the limiting assembly includes a limiting member, a sliding groove is provided on the limiting member, and the locking member can partially extend into the sliding groove, the driving member drives the locking member to move in the sliding groove through the transmission unit, and the locking member presses the limiting member toward the frame by sliding in the sliding groove.

[0005] In this way, by providing a locking assembly and a limiting assembly, the locking mechanism can stably mount the test head on the test device, and realize the functions of automatic locking and unlocking through the driving member in the locking mechanism.

[0006] In order to enable the limiting member to cooperate with the locking member for locking, and to ensure that the limiting member and the locking member are stably locked, the sliding groove on the limiting member is inclined relative to the limiting member, and one end of the sliding groove is relatively close to the frame, and the other end is relatively far away from the frame; and the end of the sliding groove relatively close to the frame is provided with a guide opening toward the side wall of the locking assembly.

[0007] With such arrangement, the locking member enters into the sliding groove through the guide port, and the limiting member cooperates with the locking member through the inclined sliding groove, so that when the locking member moves in the sliding groove, the limiting member can cooperate with the locking member to lock.

[0008] In order to enable the locking piece to cooperate with the locking strip, a clamping shaft is provided on the locking piece, and the clamping shaft extends into the sliding groove through the guide opening and can slide in the sliding groove.

[0009] With such arrangement, the locking frame can slide in the sliding groove via the clamping shaft.

[0010] In order to ensure stable cooperation between the clamping shaft and the limiting member, the locking member also includes a bearing, a plurality of clamping shafts are arranged on the locking member, a plurality of sliding grooves are correspondingly opened on the limiting member, the bearing is sleeved on the clamping shaft, the sliding grooves are arranged at equal intervals along the length direction of the limiting member, and the clamping shaft rolls in the sliding groove through the bearing.

[0011] In this way, by arranging a plurality of clamping shafts corresponding to the sliding grooves, the clamping shafts slide in the sliding grooves through bearings, so that the clamping shafts and the sliding grooves are in rolling contact, and the clamping shafts and the limiting members can be stably matched.

[0012] In order to transmit the driving action of the driving member to the locking member, the transmission unit includes a connecting rod, a rotating member and a transmission member, the rotating member is rotatably installed on the frame, the driving member is connected to the connecting rod, the connecting rod is rotatably connected to the rotating member, the rotating member is rotatably connected to the transmission member, and the transmission member is rotatably installed on the locking member.

[0013] Such an arrangement enables the driving member to transmit the driving action to the locking member through the connecting rod, the rotating member and the transmission member of the transmission unit, thereby realizing the locking and unlocking of the locking member.

[0014] In order to stably mount the test head on the test device, the number of the driving members is set to two, and the driving members are arranged at two ends of the frame body where no sliding guide rail is arranged; and,

[0015] The number of the transmission units is set to two. The transmission units are installed on the frame. The transmission units are respectively connected to different driving members, and the driving members drive the different transmission units to rotate.

[0016] With such arrangement, the driving member drives different transmission units respectively, so that the relative locking edges of the frame are locked by different transmission units, thereby driving different locking members to lock the measured head.

[0017] In order to save materials, the transmission unit is further provided with a reversing member, the middle part of which is rotatably connected to the frame, and one end of which is rotatably connected to the driving member to change the driving direction of the driving member;

[0018] The number of the driving members is set to one, and the number of the transmission units is set to two, the driving member drives the rotation of the two transmission units, wherein the connecting rod of one transmission unit is connected between the driving member on the reversing member and the middle part of the reversing member, the connecting rod is rotatably connected to the rotating member, and the rotating member is rotatably connected to the transmission member; the connecting rod of the other transmission unit is rotatably connected to the other end of the reversing member, the connecting rod is rotatably connected to the rotating member, and the rotating member is rotatably connected to the transmission member.

[0019] With such arrangement, the locking mechanism transmits the driving force of the driving member to different transmission units through the reversing member, thereby driving different locking members to lock, thus saving the use of materials.

[0020] In order to allow the transmission member to move a relatively long distance through the rotation of the rotating member after the connecting rod is displaced a certain distance; the locking assembly includes a rotating shaft, the rotating member is rotatably installed on the frame through the rotating shaft, and the connecting rod is rotatably installed at a position of the rotating member relatively close to the rotating shaft, and the transmission member is rotatably connected to the rotating member at a position relatively far away from the rotating shaft.

[0021] In this arrangement, the connecting rod is rotatably installed at a position of the rotating member relatively close to the rotating shaft, and the transmission member is rotatably connected to the rotating member at a position relatively far from the rotating shaft, so that after the connecting rod is displaced a small distance, the transmission member moves a larger distance.

[0022] In order to enable the locking member to move on the frame, the locking member is slidably mounted on the sliding guide rail, and the locking member can slide relative to the frame under the push of the transmission member.

[0023] In this way, by arranging the sliding guide rail on the frame, the locking member can slide relative to the frame.

[0024] In order to enable the locking mechanism to free up manpower, the driving member is configured as an electric push rod, and the electric push rod pushes the push rod through electrical drive.

[0025] In this way, by arranging an electric push rod, the electric push rod pushes the installation component, freeing up manpower.

[0026] The present invention also provides a testing device, which includes the locking mechanism described in any one of the above items.

[0027] The present invention provides a locking mechanism. Through the arrangement of a locking assembly and a limiting assembly, a clamping shaft in the locking assembly is clamped in a sliding groove on the limiting assembly and slides in the sliding groove, so that a device under test and a test head can be firmly locked, and testing of a circuit board is made more automated, freeing up manpower. The test device using the locking mechanism has a wider application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic structural diagram of a locking mechanism in one embodiment of the present invention;

[0029] Figure 2 for Figure 1 A schematic structural diagram of the locking mechanism shown in another perspective;

[0030] Figure 3 for Figure 1 A schematic diagram of the structure of the back of the locking mechanism shown;

[0031] Figure 4 for Figure 1 A schematic diagram of the structure of the limit assembly in the locking mechanism shown;

[0032] Figure 5 for Figure 4 A schematic structural diagram of the limit assembly from another perspective shown;

[0033] Figure 6 for Figure 4 A schematic structural diagram of a limiting member of a limiting assembly shown;

[0034] Figure 7 for Figure 1 A schematic diagram of the matching structure of the locking member and the limiting member in the locking mechanism shown;

[0035] Figure 8 This is a schematic structural diagram of a locking mechanism in another embodiment of the present invention.

[0036] 100. Locking mechanism; 10. Locking assembly; 11. Driving member; 12. Transmission unit; 121. Connecting rod; 122. Rotating member; 123. Transmission member; 124. Reversing member; 13. Locking member; 131. Snap-fit ​​shaft; 132. Bearing; 14. Frame; 141. Sliding guide rail; 142. Positioning column; 20. Limiting assembly; 21. Mounting frame; 211. Positioning hole; 22. Limiting member; 221. Sliding groove; 222. Guide port. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly mounted on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0040] Please refer to 1 to 3, Figure 1 FIG. 1 is a schematic structural diagram of a locking mechanism 100 in an embodiment of the present invention. Figure 2 for Figure 1 The structural diagram of the locking mechanism 100 from another perspective is shown. Figure 3 for Figure 1 The structural schematic diagram of the back of the locking mechanism 100 is shown.

[0041] The locking mechanism 100 is used to lock the mutually cooperating electrical components to prevent the mutually cooperating electrical components from separating during operation. Through the cooperation of the locking component 10 and the limiting component 20, the mutually cooperating electrical components can not only maintain a locked state, but also limit the movement of the electrical components.

[0042] The present invention provides a locking mechanism 100. In this embodiment, the locking mechanism 100 is used to lock a test device in the field of equipment testing. The locking mechanism 100 is installed on the device under test and the test head, so that when the test head is installed on the device under test to test an integrated circuit board, it can be stably installed on the device under test without relative separation.

[0043] It is understandable that the present invention does not limit the applicable field of the locking mechanism 100. In other embodiments, the locking mechanism 100 can also provide locking services for equipment such as engineering vehicles and construction tools, and can also provide locking functions for large equipment such as machine tools and production lines.

[0044] In the existing process of testing integrated circuits, the integrated circuits are often tested by cooperating with a test head (DUT); a spring pin module is installed on a large test head, and the DUT needs to be installed on the test head during testing, so it is necessary to overcome the elastic force of the spring pin module and the problem that it is difficult for manpower to control the test head.

[0045] In view of this, it is necessary to provide a locking mechanism, which, through the setting of the locking component 10 and the limit component 20, the clamping shaft 131 in the locking component 10 is clamped in the sliding groove 221 on the limit component 20, and slides in the sliding groove 221, so that the tested device and the test head can be firmly locked, and the testing of the circuit board can be more automated, freeing up manpower, and the test device using the locking mechanism 100 has a wider application prospect.

[0046] Specifically, the locking mechanism 100 includes a locking assembly 10 and a limiting assembly 20. The locking assembly 10 actively cooperates with the limiting assembly 20 so that the locking assembly 10 and the limiting assembly 20 can be locked with each other. The locking assembly 10 is used for active locking, and the limiting assembly 20 is used for limiting the locking assembly 10.

[0047] In this embodiment, the locking assembly 10 includes a frame 14 . The frame 14 is installed on the testing device. The frame 14 is used to install other working components of the locking assembly 10 .

[0048] Specifically, the frame 14 is roughly rectangular, and sliding guide rails 141 are arranged on both sides of the frame 14. The sliding guide rails 141 are symmetrically arranged about the center line of the frame 14, and positioning columns 142 are also arranged on the frame 14, and the positioning columns 142 are arranged at the diagonals of the frame 14. Two rectangular through holes are opened in the middle of the frame 14.

[0049] It is understandable that the present invention does not limit the installation form of the frame 14 . In other embodiments, the frame 14 can also be configured into other shapes such as a circle or a triangle, as long as other working components of the locking assembly 10 can be installed on the frame 14 .

[0050] In this embodiment, the locking assembly 10 also includes a driving member 11, a transmission unit 12 and a locking member 13. The driving member 11 is used to drive the transmission unit 12 and the locking member 13 to reduce manual locking. The transmission unit 12 is used to transmit the action of the driving member 11 to the locking member 13, and the locking member 13 is used to cooperate with the limit assembly 20 for locking.

[0051] Specifically, in the present embodiment, the driving member 11 is configured as an electric push rod, and the driving member 11 is fixedly mounted on the frame 14 via a threaded connecting rod 121. The driving member 11 is electrically driven so that the motor pushes the push rod, thereby driving the rotation of the transmission unit 12 and the sliding of the locking member 13, so that the locking assembly 10 cooperates with the limit assembly 20 for locking. The electric push rod is powered by a DC power supply, and the power supply circuit is independent of the power supply circuit of the test device, so that the locking function can be used even when the test device is not running.

[0052] In this embodiment, the electric push rod is selected as a DC motor. By setting the maximum load current of the DC motor, the motor can automatically stop pushing when the load is greater than a certain threshold, thereby providing an overload protection for the locking assembly 10.

[0053] It can be understood that the present invention does not limit the setting form of the driving member 11. In other embodiments, the driving member 11 can also be configured as a driving motor and a gear rack structure. The driving motor drives the gear to rotate, and the gear drives the support to extend and retract, thereby driving the movement of the transmission unit 12 and the locking member 13. As long as the driving member 11 can drive the movement of the transmission unit 12 and the locking member 13, it will be sufficient.

[0054] In this embodiment, the transmission unit 12 also includes a connecting rod 121, a rotating member 122 and a transmission member 123. The connecting rod 121 is used to connect the driving member 11 to drive the rotating member 122 to rotate. The rotating frame is used to redirect the movement transmitted by the connecting rod 121. The transmission member 123 is used to transmit the movement transmitted by the rotating member 122 to the locking member 13.

[0055] See also Figure 1 , Figure 1 FIG. 1 is a schematic structural diagram of a locking mechanism 100 in an embodiment of the present invention. Figure 2 for Figure 1 The structural diagram of the locking mechanism 100 from another perspective is shown. Figure 3 for Figure 1 The structural schematic diagram of the back of the locking mechanism 100 is shown.

[0056] In this embodiment, the transmission unit 12 is further provided with a reversing member 124 , which is rotatably connected to the frame 14 , and is used to change the transmission direction of the driving member 11 .

[0057] In this embodiment, only one driving member 11 is provided, and two transmission units 12 are provided, and are symmetrically arranged about the center line of the frame 14. The middle part of the reversing member 124 is rotatably connected to the frame 14, and one end of the reversing member 124 is rotatably connected to the driving member 11. The connecting rod 121 of one transmission unit 12 is arranged between the connection between the driving member 11 and the reversing member 124 and the middle part of the reversing member 124, and the connecting rod 121 of the other transmission unit 12 is arranged at the other end of the reversing member 124, and the distance from the connection between different connecting rods 121 and the reversing member 124 to the center of the reversing member 124 is the same.

[0058] In this embodiment, the number of transmission units 12 is set to two, and they are respectively arranged on both sides of the driving member 11. The rotating member 122 is roughly triangular in shape. The rotating member 122 is rotatably installed on the frame 14 through a rotating shaft. The rotating shaft is set at a vertex angle of the rotating member 122, and the rotating member 122 can rotate along the rotating shaft; the connecting rod 121 is set to a long rod shape, one end of the connecting rod 121 is connected to the driving member 11, and the other end is rotatably connected to one end of the rotating member 122, and the connecting rod 121 is rotatably installed on the rotating member 122 at a position relatively close to the rotating shaft; the transmission member 123 is columnar, one end of which is rotatably connected to a position relatively far away from the rotating shaft in the rotating member 122, and the other end is rotatably connected to the locking member 13; the driving member 11 pushes the connecting rod 121 to move, the connecting rod 121 pushes the rotating member 122 to rotate, the rotating member 122 rotates to drive the transmission member 123 to move, and the transmission member 123 moves to drive the locking member 13 to move along the sliding guide rail 141 of the frame 14.

[0059] When the driving member 11 starts working, it pushes the reversing member 124 to rotate along the rotating connection between the reversing member 124 and the frame 14, and the two ends of the reversing member 124 respectively drive the connecting rods 121 of different transmission units 12 to move, and the moving directions of the two connecting rods 121 are opposite, and the push rod drives the rotating member 122 to rotate, and the rotating member 122 rotates and drives the transmission member 123 to move, and the movement of the transmission member 123 drives the locking member 13 to slide along the sliding guide rail 141 of the frame 14, and cooperates with the limiting member 22 on the limiting assembly 20 to lock.

[0060] It can be understood that the present invention does not limit the connection relationship between the connecting rod 121 and the transmission member 123 and the rotating member 122. In other embodiments, the connecting rod 121 and the transmission member 123 can also be set at the same position on the rotating member 122, as long as the connecting rod 121 is turned through the rotating member 122 and the moving motion is transmitted to the transmission member 123.

[0061] See also Figure 8 , Figure 8 This is a schematic structural diagram of a locking mechanism 100 in another embodiment of the present invention.

[0062] Specifically, the rotating member 122 is roughly triangular in shape, and the rotating member 122 is rotatably installed on the frame 14 through a rotating shaft. The rotating shaft is set at a vertex angle of the rotating member 122, and the rotating member 122 can rotate along the rotating shaft; the connecting rod 121 is set in the shape of a long rod, one end of the connecting rod 121 is connected to the driving member 11, and the other end is rotatably connected to one end of the rotating member 122, and the connecting rod 121 is rotatably installed on the second vertex angle of the rotating member 122; the transmission member 123 is columnar, one end is rotatably connected to the third vertex angle of the rotating member 122, and the other end is rotatably connected to the locking member 13; the driving member 11 pushes the connecting rod 121 to move, the connecting rod 121 pushes the rotating member 122 to rotate, the rotating member 122 rotates to drive the transmission member 123 to move, and the movement of the transmission member 123 drives the locking member 13 to move along the sliding guide rail 141 of the frame 14.

[0063] Specifically, the transmission member 123 is configured as a spherical bearing 132 connecting rod, which can not only be rotatably connected to the rotating member 122 and the locking member 13 at both ends, but also the two ends of the spherical bearing 132 connecting rod can also rotate relative to each other.

[0064] In this embodiment, the number of driving members 11 and transmission units 12 is set to two, the driving members 11 are respectively arranged at the two ends of the frame 14, and the orientations of the driving members 11 are different, the transmission members 123 are installed on the frame 14, and different transmission members 123 are arranged at relative positions of the frame 14, the driving member 11 drives the transmission unit 12 to move, and the transmission unit 12 drives the locking members 13 arranged on both sides of the frame 14, and the driving member 11 and the transmission unit 12 match each other.

[0065] It is understandable that the present invention does not limit the configuration of the transmission unit 12 and the driving unit. In other embodiments, the locking assembly 10 does not have the transmission member 123 and the connecting rod 121, and the driving member 11 drives the locking member 13 to slide on the guide rail through the movement of the gear rack.

[0066] In this embodiment, the locking assembly 10 further includes a locking member 13 . The locking member 13 is disposed on the sliding guide rail 141 . The locking member 13 is used to cooperate with the limiting assembly 20 for locking.

[0067] Specifically, in this embodiment, a mounting member is provided on the locking member 13, and the mounting member is fixedly mounted on the locking member 13 through a threaded connecting rod 121. The transmission member 123 is rotatably mounted on the mounting member. The transmission member 123 moves under the drive of the driving member 11 and can push the mounting part, so that the locking member 13 slides along the sliding guide rail 141.

[0068] It is understandable that the present invention does not limit the location of the mounting member. In other embodiments, no mounting member is provided on the locking member 13, and the transmission member 123 is rotatably mounted on the locking member 13, as long as the transmission member 123 can drive the locking member 13 to slide.

[0069] In this embodiment, the locking assembly 10 is provided with a bearing 132 , and the bearing 132 is used to cooperate with the limiting assembly 20 , so that the locking assembly 10 and the limiting assembly 20 are locked with each other.

[0070] Specifically, in the present embodiment, a plurality of clamping shafts 131 are provided on the locking member 13, and the plurality of clamping shafts 131 are evenly arranged along the length direction of the locking member 13, and the plurality of clamping shafts 131 are at the same horizontal height; a bearing 132 is provided on the clamping shaft 131, and the clamping shaft 131 cooperates with the limiting member 22, and the bearing 132 installed on the clamping shaft 131 can make the clamping shaft 131 cooperate with the locking member 13 smoothly.

[0071] It can be understood that the present invention does not limit the setting form of the bearing 132 on the locking assembly 10. In other embodiments, the clamping shaft 131 can also be set as a ball, as long as the clamping shaft 131 can cooperate with the limit member 22 softly and stably when the clamping shaft 131 cooperates with the limit member 22.

[0072] See also Figures 4 to 7 , Figure 4 for Figure 1 The structural diagram of the limit assembly 20 in the locking mechanism 100 is shown in FIG. Figure 5 for Figure 4 The schematic structural diagram of the limit assembly 20 from another perspective is shown. Figure 6 for Figure 4 The schematic structural diagram of the limiting member 22 of the limiting assembly 20 is shown in FIG. Figure 7 for Figure 1 The schematic diagram of the matching structure of the locking member 13 and the limiting member 22 in the locking mechanism 100 is shown.

[0073] In this embodiment, the locking mechanism 100 further includes a limit assembly 20, and the limit assembly 20 is used to set the measured head.

[0074] Specifically, in this embodiment, the limiting assembly 20 includes a mounting frame 21 and a limiting member 22. The limiting member 22 is fixedly mounted on the mounting frame 21. The mounting frame 21 is roughly rectangular, and a handle is provided on the side of the mounting frame 21 close to the driving member 11 to facilitate taking the mounting frame 21. Two rectangular openings are provided in the middle of the mounting frame 21. A positioning hole 211 is also provided on the mounting frame 21. The positioning hole 211 is provided along the diagonal line of the mounting frame 21 and is installed thereon.

[0075] It is understandable that the present invention does not limit the arrangement of the mounting frame 21 . In other embodiments, the mounting assembly is arranged in a plate shape, as long as the testable assembly can be stably installed through the frame 14 .

[0076] In this embodiment, a limiting member 22 is further provided on the limiting assembly 20, and the limiting member 22 is used to cooperate with the locking member 13 to lock the test head and the device under test.

[0077] Specifically, the limit members 22 are arranged on both sides of the limit assembly 20, the limit members 22 are in the shape of long strips, and a sliding groove 221 is opened on the limit members 22, and the sliding groove 221 is inclined relative to the limit member 22, one end of the sliding groove 221 is relatively close to the frame 14, and the other end is relatively far away from the frame 14, and the sliding groove 221 is relatively close to the frame 14 and has an opening toward the side wall of the locking assembly 10, and the opening is larger than the diameter of the clamping shaft 131 on the locking member 13, and the sliding grooves 221 on the limit members 22 on both sides of the mounting frame 21 are arranged back to back; the sliding grooves 221 are evenly arranged along the length direction of the limit member 22.

[0078] It can be understood that the present invention does not limit the setting form of the sliding groove 221 on the limit member 22. In other embodiments, the sliding groove 221 can also be set to penetrate the limit member 22, as long as the bearing 132 can cooperate with the sliding groove 221 on the limit member 22.

[0079] The present invention provides a locking mechanism 100. The locking mechanism 100, through the setting of the locking component 10 and the limiting component 20, enables the clamping shaft 131 in the locking component 10 to be clamped in the sliding groove 221 on the limiting component 20 and slide in the sliding groove 221, so that the tested device and the test head can be firmly locked, and the testing of the circuit board is made more automated, freeing up manpower. The test device using the locking mechanism 100 has a wider application prospect.

[0080] The present invention further provides a testing device, which includes the locking mechanism 100 mentioned above.

[0081] In this embodiment, the test device is installed with the locking mechanism 100 so that the device under test can be stably installed on the test device through the locking mechanism 100, so that the test device can stably test the device under test, thereby improving the detection success rate.

[0082] The driving process of the locking mechanism 100 is described below:

[0083] The component under test is installed on the mounting frame 21 of the limiting component 20, and the mounting frame 21 is installed on the frame 14 of the locking component 10. The positioning hole 211 on the mounting frame 21 cooperates with the positioning column 142 on the frame 14 to fix the setting position of the mounting frame 21, and the clamping shaft 131 on the locking component 10 and the opening of the sliding groove 221 on the limiting component 20 are arranged to correspond to each other, and the clamping shaft 131 extends into the sliding groove 221.

[0084] The driving member 11 starts to work, pushing the connecting rod 121, the connecting rod 121 drives the rotating member 122 to rotate, the rotating member 122 rotates and drives the transmission member 123 to move, the transmission member 123 moves and drives the locking member 13 to slide on the frame 14, the clamping shaft 131 on the locking member 13 slides on the sliding groove 221, the clamping shaft 131 is clamped on the limit member 22, and pushes the limit member 22 toward the frame 14, so that the locking member 13 and the limit member 22 cooperate with each other to lock.

[0085] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0086] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection claimed by the present invention.

Claims

1. A locking mechanism, characterized in that: The locking mechanism comprises a frame (14), a locking assembly (10) and a limiting assembly (20); the locking assembly (10) is mounted on the frame (14); the limiting assembly (20) is covered on the frame (14); the locking assembly (10) comprises a driving member (11), a transmission unit (12) and a locking member (13); the driving member (11) is connected to the transmission unit (12); the transmission unit (12) is connected to the locking member (13); The limiting component (20) comprises a limiting member (22), a sliding groove (221) is provided on the limiting member (22), a portion of the locking member (13) can extend into the sliding groove (221), the driving member (11) drives the locking member (13) to move in the sliding groove (221) through the transmission unit (12), and the locking member (13) slides in the sliding groove (221) to press the limiting member (22) toward the frame (14); The sliding groove (221) on the limiting member (22) is arranged obliquely relative to the limiting member (22), and one end of the sliding groove (221) is relatively close to the frame (14), and the other end is relatively far away from the frame (14); and the end of the sliding groove (221) relatively close to the frame (14) is provided with a guide opening (222) toward the side wall of the locking component (10); the locking component (10) is provided with a clamping shaft (131), and the clamping shaft (131) extends into the sliding groove (221) through the guide opening (222) and can slide in the sliding groove (221).

2. The locking mechanism according to claim 1, characterized in that: The locking member (13) further comprises a bearing (132), a plurality of clamping shafts (131) are arranged on the locking member (13), the bearings (132) are sleeved on the clamping shafts (131), a plurality of sliding grooves (221) are correspondingly opened on the limiting member (22), the sliding grooves (221) are arranged at equal intervals along the length direction of the limiting member (22), and the clamping shafts (131) slide in the sliding grooves (221) through the bearings (132).

3. The locking mechanism according to claim 1, characterized in that: The transmission unit (12) comprises a connecting rod (121), a rotating member (122) and a transmission member (123); the rotating member (122) is rotatably mounted on the frame (14); the driving member (11) is connected to the connecting rod (121); the connecting rod (121) is rotatably connected to the rotating member (122); the rotating member (122) is rotatably connected to the transmission member (123); and the transmission member (123) is rotatably mounted on the locking member (13).

4. The locking mechanism according to claim 3, characterized in that: The number of the driving members (11) is set to two, and the driving members (11) are arranged at two ends of the frame (14) where the locking members (13) are not arranged; and, The number of the transmission units (12) is set to two. The transmission units (12) are mounted on the frame (14). The two transmission units (12) are respectively connected to different driving members (11), and the driving members (11) drive the different transmission units (12) to move.

5. The locking mechanism according to claim 3, characterized in that: The transmission unit (12) is further provided with a reversing member (124), the middle portion of which is rotatably connected to the frame (14), and one end of which is rotatably connected to the driving member (11) to change the driving direction of the driving member (11); The number of the driving member (11) is set to one, and the number of the transmission units (12) is set to two. The driving member (11) drives the two transmission units (12) to rotate, wherein the connecting rod (121) of one transmission unit (12) is connected between the driving member (11) and the middle part of the reversing member (124) on the reversing member (124), the connecting rod (121) is rotationally connected to the rotating member (122), and the rotating member (122) is rotationally connected to the transmission member (123); the connecting rod (121) of the other transmission unit (12) is rotationally connected to the other end of the reversing member (124), the connecting rod (121) is rotationally connected to the rotating member (122), and the rotating member (122) is rotationally connected to the transmission member (123).

6. The locking mechanism according to claim 3, characterized in that: The locking assembly (10) comprises a rotating shaft, the rotating member (122) is rotatably mounted on the frame (14) via the rotating shaft, the connecting rod (121) is rotatably mounted at a position of the rotating member (122) relatively close to the rotating shaft, and the transmission member (123) is rotatably connected to a position of the rotating member (122) relatively far from the rotating shaft.

7. The locking mechanism according to claim 3, characterized in that: The frame (14) is also provided with a sliding guide rail (141), the locking member (13) is slidably mounted on the sliding guide rail (141), and the locking member (13) can slide relative to the frame (14) under the push of the transmission member (123).

8. The locking mechanism according to claim 1, characterized in that: The driving member (11) is configured as an electric push rod, and the electric push rod pushes the push rod through electric drive.

9. A testing device, characterized in that: The testing device comprises a locking mechanism as claimed in any one of claims 1 to 8.

Images