Locking mechanism for gauges

Abstract

The utility model discloses a locking mechanism for gauge, including installing on the mounting seat of gauge, analog block, the mounting seat is T type structure, its horizontal section is equipped with the installation hole that is apart with the gauge distance adaptation, the end of vertical section is equipped with the threaded hole, the threaded hole of mounting seat is connected with first locking mechanism, and the first locking mechanism is inserted with second locking mechanism outside, and first locking mechanism and second locking mechanism are connected through interlocking assembly cooperation, and realize interlocking and unlocking through the component of stirring, and second locking mechanism is equipped with the threaded hole outside, and second locking mechanism is fixed on analog block through countersunk screw.

Description

Technical Field

[0001] This utility model relates to the field of inspection tool technology, and specifically to a locking mechanism for inspection tools. Background Technology

[0002] On the inspection fixture, some inspection points are difficult to detect at the same time due to the influence of the appearance and shape of the parts. It is necessary to disassemble the simulation block and inspect them step by step. Or, due to the assembly characteristics of the parts, some assembly positioning points are covered by the simulation block. After the inspection is completed, the simulation block must be disassembled before the parts can be taken out. In this case, a locking mechanism is needed to fix the simulation block.

[0003] Currently, the locking mechanism of gauge simulation blocks on the market generally adopts a threaded structure. A mounting base with a threaded hole is designed on the gauge, and a corresponding threaded hole is made on the simulation block. Then, a bolt is inserted and tightened to connect and lock the simulation block to the gauge mounting base. When disassembling the simulation block, the bolt is rotated in the opposite direction until it is completely loosened, after which the simulation block is separated from the gauge mounting base and can be removed.

[0004] In the process of realizing this utility model, the inventors discovered that: This locking method is very inconvenient in actual use. For example, when it is necessary to calculate the gauge measurement value CPK, more than 30 sets of data need to be measured. At this time, the gauge simulation block needs to be disassembled and reassembled repeatedly. Each time the bolt is tightened and loosened, it needs to be rotated many times, which wastes a lot of time and affects the efficiency of gauge measurement. Moreover, the bolts and threaded holes often become difficult to disassemble and the threads are damaged and difficult to tighten during later maintenance or repair, which also affects the detection accuracy of the simulation block. Summary of the Invention

[0005] In order to solve the problems existing in the prior art, this utility model proposes a locking mechanism for inspection tools, which can facilitate the disassembly and assembly of simulation blocks.

[0006] Therefore, the technical solution of this utility model is as follows: a locking mechanism for a gauge, comprising a mounting base and a simulation block mounted on the gauge, characterized in that: the mounting base has a T-shaped structure, with mounting holes on its horizontal section adapted to the gauge, and threaded holes at the end of its vertical section. A first locking mechanism is connected to the threaded hole of the mounting base. A second locking mechanism is inserted into the outside of the first locking mechanism. The first and second locking mechanisms are connected by an interlocking component and are interlocked and unlocked by a toggle component. The second locking mechanism has a threaded hole on its outside and is fixed to the simulation block by screws.

[0007] Preferably, the first locking mechanism includes a fixing block with a convex through groove inside. An annular block is rotatably connected to the groove on the side with a larger inner diameter, and the fixing block is fixedly connected to the mounting base through this side. The inner diameter of the annular block is adapted to the side with a smaller inner diameter of the convex through groove. Multiple radial protrusions are evenly distributed on the same circumference of the inner wall of the annular block. The second locking mechanism includes a connecting block with a connecting post on the side of the connecting block near the fixing block. Multiple radial protrusions are evenly distributed on the outer circumference of the end of the connecting post, which are offset from the annular block, forming an interlocking assembly. During insertion, the radial protrusions can pass through the cavity between adjacent radial protrusions and slide with the radial protrusions when the annular block rotates.

[0008] Preferably, the top of the inner wall of the side with the larger inner diameter of the convex through groove of the fixing block is provided with an arc-shaped through groove, the actuating component is a lever, one end of the lever is fixed to the outer wall of the annular block and the other end extends out of the arc-shaped through groove, the end face of the annular block away from the fixing block is also provided with a rotation positioning protrusion, and the inner wall of the fixing block is provided with a matching arc-shaped sliding groove.

[0009] Preferably, the annular block and the connecting block each have four radial protrusions, the center angle of the arc-shaped groove is 45°, the center angle of the arc-shaped through groove is greater than 45°, and the rotation angle of the lever is limited to within 45°.

[0010] Preferably, the radial protrusions one and two on the annular block and the connecting block are trapezoidal blocks arranged in opposite directions, with chamfered edges.

[0011] Preferably, the simulation block has a handle on its outer side, and the connecting block has multiple countersunk bolt through holes adapted to the simulation block on its inner side. The fixing block and the connecting block have multiple protrusions on one side and corresponding grooves on the other side of their mating surfaces.

[0012] Beneficial effects: This utility model solves the problems of time-consuming assembly and disassembly, difficulty in disassembly, and easy damage to the gauge simulation block; it achieves convenient use, easy disassembly, and reliable locking. Compared with the prior art, firstly, it improves the assembly and disassembly efficiency of the gauge simulation block, especially in repeatable measurements where repeated assembly and disassembly of the simulation block is required, greatly reducing the workload; secondly, the traditional threaded structure is cumbersome to operate and easily damaged, and also affects the accuracy of the measurement results, while this patent can improve the service life of the gauge; thirdly, it is very convenient to use, disassembly is extremely simple, locking is reliable and can maintain high precision; fourthly, it avoids damage caused during assembly or disassembly. Attached Figure Description

[0013] Figure 1 This is a diagram showing the locking state of this utility model.

[0014] Figure 2 This is a diagram showing the unlocked / open state of this utility model.

[0015] Figure 3 This is the disassembly and assembly method of this utility model. Figure 1 .

[0016] Figure 4 This is the disassembly and assembly method of this utility model. Figure 2 .

[0017] Figure 5 This is a diagram showing the usage of this utility model on a gauge.

[0018] The figure shows: 1. Mounting base; 2. First locking mechanism; 3. Second locking mechanism; 4. Handle; H. Simulation block; P. Inspection fixture. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings, but this embodiment should not be construed as a limitation of this utility model.

[0020] This utility model is as follows Figures 1 to 5 As shown: A locking mechanism F for a gauge includes a mounting base 1 and a simulation block H mounted on the gauge P. The mounting base has a T-shaped structure, with mounting holes on its horizontal section that are adapted to the gauge, and threaded holes 11 at the end of its vertical section. The mounting base has a threaded hole in which a first locking mechanism 2 is connected. A second locking mechanism 3 is inserted into the outside of the first locking mechanism. The first and second locking mechanisms are connected by an interlocking component and are interlocked and unlocked by a toggle component. The second locking mechanism has a threaded hole on its outside and is fixed to the simulation block by a countersunk screw.

[0021] Furthermore, the first locking mechanism 2 includes a fixed block 21, which has a convex through groove 22. An annular block 23 is rotatably connected to the groove on the side with a larger inner diameter, and the fixed block is fixedly connected to the mounting base through this side. The inner diameter of the annular block is adapted to the side with a smaller inner diameter of the convex through groove. Multiple radial protrusions 24 are evenly distributed on the same circumference of the inner wall of the annular block. The fixed block and the annular block are designed separately. In large-scale applications, the fixed block can be made into a standard part. Only the structure and number of radial protrusions on the annular block need to be changed according to different application scenarios, which reduces the cost of use and improves efficiency. The second locking mechanism 3 includes a connecting block 31, which has a connecting post 32 on the side of the connecting block near the fixed block. Multiple radial protrusions 33, which are offset from the annular block, are evenly distributed on the outer circumference of the end of the connecting post, forming an interlocking component. When inserted, the radial protrusions can pass through the cavity between adjacent radial protrusions and slide with the radial protrusions when the annular block rotates, which can form a limiting structure.

[0022] Furthermore, an arc-shaped through groove 25 is formed on the top of the inner wall of the side with the larger inner diameter of the convex through groove of the fixing block. The actuating component adopts a lever 26, one end of which is radially fixed to the outer wall of the annular block, and the other end extends out of the arc-shaped through groove. A rotation positioning protrusion 27 is also provided on the end face of the annular block away from the fixing block, and a matching arc-shaped sliding groove 28 is provided on the inner wall of the fixing block. Through the cooperative structure of the rotation positioning protrusion and the arc-shaped sliding groove, the rotation angle positioning of the annular block is effectively solved. While ensuring strength, the design and processing are also greatly simplified, saving manufacturing costs.

[0023] Furthermore, the annular block and the connecting block each have four radial protrusions, the central angle of the arc-shaped groove is 45°, the central angle of the arc-shaped through groove is greater than 45°, and the rotation angle of the lever is limited to within 45°. An angle that is too small will cause the starting and ending positions of the locking mechanism to be too close together, creating a misperception during use; an angle that is too large will make it inconvenient to use when the lever swings. Designing a 45° swing angle is close to the swing angle that is habitually induced by the human body, making it more ergonomic and easier to manufacture.

[0024] Furthermore, the radial protrusions 24 and 33 on the annular block 23 and connecting block 31 are trapezoidal blocks arranged in opposite directions with chamfered edges. The trapezoidal block design, with the extension lines of all sides pointing towards the center, allows for even stress distribution during the sliding fit of the radial protrusions, extending their service life. The chamfered edges further reduce stress concentration during the sliding fit, resulting in smoother operation.

[0025] Furthermore, the simulation block is provided with a handle 4 on its outer side for easy disassembly and assembly; the connecting block 31 is provided with multiple countersunk bolt through holes 34 adapted to the simulation block on its inner side, and the countersunk bolts avoid interference; on the mating surfaces of the fixing block 21 and the connecting block 31, one side is provided with multiple hemispherical grooves 29 and the other side is provided with corresponding hemispherical protrusions 35. The hemispherical protrusion structure plays a guiding role during assembly, which facilitates assembly, and also plays a positioning role, thereby improving the assembly accuracy of the fixing block and the connecting block.

[0026] The working principle of this utility model: In use, turn the lever clockwise to rotate the annular block inside the first locking mechanism 45° clockwise. When the rotating positioning protrusion reaches the end point from the starting point, the rotation angle is exactly 45°. At this time, the first radial protrusion and the second radial protrusion of the second locking mechanism are in contact, thus achieving the purpose of fully locking the first and second locking mechanisms. To unlock, turn the lever counterclockwise to rotate the annular block inside the first locking mechanism 45° counterclockwise. At this time, the first radial protrusion of the first locking mechanism and the second radial protrusion of the second locking mechanism are misaligned, allowing the second locking mechanism along with the simulation block to be removed, achieving the purpose of quick disassembly.

[0027] Any aspects not described in detail in this specification are techniques well-known in the art.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A locking mechanism for a gauge, comprising a mounting base and a simulation block mounted on the gauge, characterized in that: The mounting base has a T-shaped structure, with mounting holes on its horizontal section that are spaced appropriately from the gauge, and threaded holes at the end of its vertical section. A first locking mechanism is connected to the threaded hole of the mounting base. A second locking mechanism is inserted into the outside of the first locking mechanism. The first and second locking mechanisms are connected by an interlocking component and are interlocked and unlocked by a toggle component. The second locking mechanism has a threaded hole on its outside and is fixed to the simulation block by a countersunk screw.

2. The locking mechanism for a gauge according to claim 1, characterized in that: The first locking mechanism includes a fixing block with a convex through groove inside. An annular block is rotatably connected to the groove on the side with a larger inner diameter, and the fixing block is fixedly connected to the mounting base through this side. The inner diameter of the annular block is adapted to the side with a smaller inner diameter of the convex through groove. Multiple radial protrusions are evenly distributed on the same circumference of the inner wall of the annular block. The second locking mechanism includes a connecting block with a connecting post on the side of the connecting block near the fixing block. Multiple radial protrusions are evenly distributed on the outer circumference of the end of the connecting post, which are offset from the annular block, forming an interlocking assembly. During insertion, the radial protrusions can pass through the cavity between adjacent radial protrusions and slide with the radial protrusions when the annular block rotates.

3. The locking mechanism for a gauge according to claim 2, characterized in that: The top of the inner wall of the larger inner diameter side of the convex through groove of the fixed block is provided with an arc-shaped through groove. The actuating component adopts a lever, one end of which is fixed to the outer wall of the annular block and the other end extends out of the arc-shaped through groove. The end face of the annular block away from the fixed block is also provided with a rotation positioning protrusion. The inner wall of the fixed block is provided with a matching arc-shaped sliding groove.

4. The locking mechanism for a gauge according to claim 3, characterized in that: There are four radial protrusions on the annular block and the connecting block, the central angle of the arc-shaped groove is 45°, the central angle of the arc-shaped through groove is greater than 45°, and the rotation angle of the lever is limited to within 45°.

5. A locking mechanism for a gauge according to claim 2, 3, or 4, characterized in that: The radial protrusions on the annular block and connecting block are trapezoidal blocks arranged in opposite directions, with chamfered edges.

6. The locking mechanism for a gauge according to claim 5, characterized in that: The simulation block has a handle on its outer side, and the connecting block has multiple countersunk bolt through holes adapted to the simulation block on its inner side. The fixing block and the connecting block have multiple protrusions on one side and corresponding grooves on the other side of their mating surfaces.

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