Depth gauge for variable transmission housing space distance

Abstract

The utility model relates to the field of machining measurement and detection discloses the depth gauge for transmission housing space different plane distance, including the positioning board, the bottom fixedly connected with the shell of positioning board, the inner wall sliding connection of shell has the connecting mechanism, the bottom fixedly connected with the probe of connecting mechanism, the inner wall sliding connection of positioning board has the adjusting mechanism, the top fixedly connected with the guide sleeve of positioning board, the connecting mechanism includes the detection rod, the outside sliding connection of detection rod in the inner wall of shell, the bottom fixedly connected with the connecting column of detection rod, the outside inner wall sliding connection of connecting column has a plurality of limit balls, in the utility model, effectively handled the problem that the depth gauge for transmission housing space different plane distance exists inconvenient replacement in the use of probe. Effectively reduce the maintenance cost and equipment idle rate, improve the detection efficiency, satisfy the diversification detection demand.

Description

Technical Field

[0001] This utility model relates to the field of machining measurement and testing, and in particular to a depth gauge for measuring the distance between opposite surfaces in a transmission housing. Background Technology

[0002] Depth gauges are widely used in machining, precision manufacturing, and automotive parts inspection. Through their unique structural design, they enable depth measurement of specific areas on various complex workpieces. Compared to general-purpose measuring tools, depth gauges are better suited for measuring irregular or concealed spaces, offering advantages such as high measurement efficiency, ease of operation, and intuitive results. They can quickly determine whether measured values ​​meet tolerance requirements, effectively ensuring product machining accuracy and assembly quality, playing an indispensable role in production quality control.

[0003] A depth gauge for measuring the spatial non-planar distance of a transmission housing consists of a guide sleeve, a fixed plate, and a measuring rod. The guide sleeve and fixed plate are sequentially fixed together, with the measuring rod passing through them. Its lower end is fixed to a probe and eccentrically positioned relative to the lower gauge body. The guide sleeve has a through hole for the measuring rod to pass through and a circumferential guide groove. Rotating components can drive the measuring rod and probe to rotate via the guide groove, allowing the probe to rotate to the outside of the lower gauge body and mate with the lower end face of the reverse gear hole on the transmission housing. Through ingenious design, the gauge is positioned using the fixed plate and a specific surface of the transmission housing. By utilizing the positional relationship between the upper end face of the measuring rod and a specific plane on the guide sleeve, it allows for a direct and rapid determination of whether the spatial non-planar distance meets tolerance requirements, greatly improving inspection efficiency and reducing inspection costs. This plays a crucial role in the quality control of transmission housing production.

[0004] However, some depth gauges used for measuring non-planar distances in transmission housings suffer from inconvenient probe replacement in existing technologies. The probes and testing rods are often fixedly connected or secured with complex threaded fasteners. When a new probe needs to be replaced, operators must use various specialized tools and go through a cumbersome disassembly process. This not only significantly increases preparation time and reduces overall testing efficiency, but frequent disassembly can also lead to thread wear and loosening of parts, affecting the measurement accuracy and lifespan of the depth gauge, thus negatively impacting the reliability of transmission housing quality inspection. Therefore, a depth gauge for measuring non-planar distances in transmission housings is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a depth gauge for measuring the interplanar distance of a transmission housing, aiming to improve the problem of inconvenient probe replacement in the use of existing depth gauges for measuring the interplanar distance of a transmission housing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a depth gauge for measuring the interplanar distance of a transmission housing, comprising a positioning plate, a housing fixedly connected to the bottom end of the positioning plate, a connecting mechanism slidably connected to the inner wall of the housing, a probe fixedly connected to the bottom end of the connecting mechanism, an adjusting mechanism slidably connected to the inner wall of the positioning plate, and a guide sleeve fixedly connected to the top end of the positioning plate; the connecting mechanism includes a detection rod, the outer side of the detection rod slidably connected to the inner wall of the housing, a connecting column fixedly connected to the bottom end of the detection rod, a plurality of limiting balls slidably connected to the inner wall of the outer side of the connecting column, damping columns fixedly connected to adjacent sides of the plurality of limiting balls, and a release assembly slidably connected to the top end of the probe; Preferably, the positioning plate serves as the basic component, and the outer shell at the bottom provides guidance and support for the connecting mechanism. The detection rod in the connecting mechanism slides inside the outer shell, driving the connecting column and limit ball, etc. The probe and the connecting mechanism are fixed by the damping column. At the same time, the guide sleeve on the positioning plate assists the movement of the detection rod, and the adjustment mechanism can slide on the inner wall of the positioning plate to adapt to different measurement needs.

[0007] As a further description of the above technical solution: the adjustment mechanism includes two movable plates, the two movable plates are slidably connected to the inner wall of the positioning plate, movable blocks are fixedly connected to the adjacent sides of the two movable plates, limit posts are fixedly connected to the inner walls of multiple movable blocks, fixed plates are fixedly connected to the tops of multiple limit posts, control strips are fixedly connected to the bottoms of the two fixed plates, and springs are sleeved on the tops of multiple limit posts. Preferably, in the adjustment mechanism, two movable plates slide on the inner wall of the positioning plate, driving the movable block and the limiting post to move. The fixed plate at the top of the limiting post is connected to the control bar. Pulling the control bar can drive the limiting post to move against the spring force, thereby releasing the limitation on the movable plate. After the control bar is released, the spring pushes each component to reset and re-fix the movable plate, realizing the adaptation to different sizes.

[0008] As a further description of the above technical solution: the release assembly includes a control ring, the outer side of which is slidably connected to the inner wall of the top of the probe; a plurality of connecting blocks I are fixedly connected to the bottom end of the control ring; a push rod is rotatably connected to the bottom end of each of the plurality of connecting blocks I; a moving rod is rotatably connected to the inner wall of the bottom end of each of the plurality of push rods; a connecting block II is rotatably connected to the adjacent side of each of the plurality of moving rods; a push plate is fixedly connected to the adjacent side of each of the plurality of connecting blocks II; two guide rods are fixedly connected to the distant side of each of the plurality of push plates; a plurality of reset posts are fixedly connected to the bottom end of the control ring; and a fixed post is fixedly connected to the adjacent side of each of the plurality of damping posts. Preferred configuration: The control ring slides on the inner wall of the probe tip. When it moves downward, it pushes the push plate. The push plate pushes the limit ball under the guidance of the guide rod, thereby releasing the probe. After the operation is completed and the external force is removed, the reset column uses its elasticity to reset the control ring, while the fixed column provides support for the damping column, ensuring that all components work together.

[0009] As a further description of the above technical solution: the upper and lower ends of the fixing column are fixedly connected to the inner wall of the connecting column, and the outer sides of the plurality of limiting balls are fixedly connected to the inner wall of the probe; Preferably, the fixed column is securely connected to the inner wall of the connecting column, providing a support base for the damping column, enabling the damping column to flexibly control the movement of the limiting ball; the limiting ball is fixed to the inner wall of the probe, and through cooperation with the damping column, it realizes a stable connection and separation operation between the probe and the connecting column.

[0010] As a further description of the above technical solution: the outer surfaces of the plurality of push plates are slidably connected to the inner wall of the probe, and the opposite sides of the plurality of guide rods are fixedly connected to the inner wall of the probe; Preferably, the guide rod is fixed to the inner wall of the probe, providing guidance and support for the push plate that is slidably connected to the inner wall of the probe, so that the push plate can slide along a precise trajectory during movement, thereby ensuring that it can push the limit ball and other operations stably and reliably.

[0011] As a further description of the above technical solution: the bottom ends of the plurality of reset posts are fixedly connected to the inner wall of the top of the probe, the adjacent sides of the plurality of push plates are fixedly connected to the outer side of the distant side of the plurality of limiting balls, and the adjacent sides of the plurality of push plates are slidably connected to the outside of the connecting post. Preferably, the reset column is fixed to the inner wall of the probe tip, and the control component is reset by elasticity after the probe is released; the push plate is fixed to the limit ball and slidably connected to the connecting column, and can push the limit ball when receiving power to change the connection state between the probe and the connecting column, without affecting the normal movement of the connecting column.

[0012] As a further description of the above technical solution: the external sliding connection of the plurality of movable blocks is to the inner wall of the positioning plate, and the external fixed connection of the bottom ends of the plurality of limiting posts is to the inner wall of the bottom end of the positioning plate. Preferably, the movable block slides on the inner wall of the positioning plate, driving the relevant components to adjust the size of the adjustment mechanism; the bottom end of the limiting column is fixed to the inner wall of the bottom end of the positioning plate, providing stable positioning and limiting support for the adjustment mechanism, ensuring the stability of the structure after adjustment.

[0013] As a further description of the above technical solution: the bottom ends of the plurality of springs are fixedly connected to the top ends of the plurality of moving blocks, the top ends of the plurality of springs are fixedly connected to the top ends of the two control bars, and the bottom ends of the two control bars are slidably connected to the top ends of the positioning plate. Preferably, the spring is connected to a moving block and a control bar at both ends. When the control bar is pulled, the spring is stretched and stores energy. After release, the spring's restoring force drives the component to reset. The control bar slides on the top of the positioning plate, providing a convenient operating interface for the adjustment mechanism and enabling flexible control of size adjustment.

[0014] This utility model has the following beneficial effects: 1. In this utility model, the detection rod drives the connecting column to move towards the probe, the damping column pushes the limiting ball to slide outward, so that the limiting ball is locked into the inner wall of the probe, thus fixing the probe. The control ring drives the connecting block one to move downward, the connecting block one drives the push rod to rotate, the push rod drives the moving rod to move, the moving rod drives the connecting block two to push the push plate, the push plate pushes the limiting ball to move inward, so that the limiting ball is disengaged from the inner wall of the probe, thereby achieving an efficient and flexible effect in the probe assembly and disassembly process.

[0015] 2. In this utility model, by pulling the control bar, the limiting post is driven to release the moving plate, and the moving plate is pulled to slide on the inner wall of the positioning plate, which drives the moving block to move synchronously. After moving to the appropriate position, the limiting post is fixed on the inner wall of the positioning plate, and the moving plate is fixed to complete the overall adjustment, thereby realizing the effect of flexible adjustment of the size of the adjustment mechanism and improving the adaptability of the depth gauge to different specifications of transmission housing. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the depth gauge for measuring the interplanar distance of the transmission housing space proposed in this utility model. Figure 2 This is a schematic diagram of the detection rod of the depth gauge for measuring the distance between opposite planes in the transmission housing space proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view of point B in the middle; Figure 5 This is a schematic diagram of the probe for measuring the distance between opposite planes in the transmission housing space, as proposed in this utility model. Figure 6 for Figure 5 Enlarged view of point C in the middle; Figure 7 This is a schematic diagram of the connecting column of the depth gauge for measuring the distance between opposite surfaces in the transmission housing space proposed in this utility model. Figure 8 for Figure 7 Enlarged view of point D in the middle.

[0017] Legend: 1. Positioning plate; 2. Outer shell; 3. Connecting mechanism; 31. Detection rod; 32. Connecting column; 33. Limiting ball; 34. Damping column; 35. Release assembly; 351. Control ring; 352. Connecting block one; 353. Push rod; 354. Moving rod; 355. Connecting block two; 356. Push plate; 357. Guide rod; 358. Reset post; 359. Fixing post; 4. Probe; 5. Adjustment mechanism; 51. Moving plate; 52. Moving block; 53. Limiting post; 54. Fixed plate; 55. Control bar; 56. Spring; 6. Guide sleeve. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Depth gauge for the distance between opposite planes in the transmission housing space, refer to Figures 1 to 3 The system includes a positioning plate 1, with a housing 2 fixedly connected to its bottom end. The housing 2 is also fixedly connected to the bottom end of the positioning plate 1, and its main function is to provide guidance and protection for the internal components. A connecting mechanism 3 is slidably connected to the inner wall of the housing 2. The connecting mechanism 3 drives the movement of other connected components based on the coordinated movement of each component. A probe 4 is fixedly connected to the bottom end of the connecting mechanism 3. The probe 4 obtains relevant data on the spatial distance between opposite surfaces by adhering to the surface being measured. An adjustment mechanism 5 is slidably connected to the inner wall of the positioning plate 1. When measuring gearbox housings of different sizes, the overall size of the gauge is changed to adapt it to housings of different specifications.

[0020] Specifically, the positioning plate 1 serves as the base, and its bottom outer shell 2 provides guidance and protection for the internal connecting mechanism 3. The connecting mechanism 3 drives the probe 4 through the coordinated movement of the components, so that it fits the surface being measured to obtain data. At the same time, the adjustment mechanism 5 on the inner wall of the positioning plate 1 can adjust the overall size of the gauge when measuring gearbox housings of different sizes, so as to achieve adaptation to housings of different specifications.

[0021] A guide sleeve 6 is fixedly connected to the top of the positioning plate 1. The guide sleeve 6 has a high-precision guide hole inside to ensure the accuracy and stability of the movement direction of the internal components. The connecting mechanism 3 includes a detection rod 31, which serves as the core transmission component of the connecting mechanism 3. Under the manual operation of the operator or the action of external driving force, the detection rod 31 slides up and down under the guidance of the outer shell 2 and the guide sleeve 6. The outer surface of the detection rod 31 is slidably connected to the inner wall of the outer shell 2. The shape and size of the inner wall of the outer shell 2 match the detection rod 31, providing it with stable support and guidance. A connecting post 32 is fixedly connected to the bottom of the detection rod 31. The presence of the connecting post 32 allows the movement of the detection rod 31 to be effectively transmitted to subsequent components. Multiple limiting balls 33 are slidably connected to the outer inner wall of the connecting post 32. These limiting balls 33 slide on the outer inner wall of the connecting post 32, and through their sliding and engaging actions, they achieve the fixing and release of the probe 4.

[0022] Specifically, the guide sleeve 6, through its internal high-precision guide hole, together with the outer shell 2, ensures the accurate and stable upward and downward sliding direction of the detection rod 31; the detection rod 31, as the core transmission component, drives the connecting column 32 when sliding, and the connecting column 32, with the help of the sliding and locking of the limiting ball 33, realizes the fixation and release of the probe 4.

[0023] Damping columns 34 are fixedly connected to adjacent sides of multiple limiting balls 33. The damping columns 34 are fixedly connected to the limiting balls 33, and their main function is to provide resistance, buffering, and thrust for the movement of the limiting balls 33. A release assembly 35 is slidably connected to the top of the probe 4. The release assembly 35 controls the limiting balls 33, completing the release operation of the probe 4. The release assembly 35 includes a control ring 351, which slides up and down on the inner wall of the top of the probe 4 when an external force is applied by the operator. The outer side of the control ring 351 is slidably connected to the inner wall of the top of the probe 4. When subjected to external force, the control ring 351 can slide along a specific track on the inner wall of the top of the probe 4, accurately transmitting the operator's force to subsequent components. Multiple connecting blocks 352 are fixedly connected to the bottom of the control ring 351. When the control ring 351 slides downward, the connecting blocks 352 move downward synchronously.

[0024] Specifically, the damping column 34 is connected to the limiting ball 33, providing resistance, buffering and thrust for the movement of the limiting ball 33; in the release assembly 35, the operator applies external force to the control ring 351 to make it slide on the inner wall of the top of the probe 4, and the control ring 351 transmits the operating force through the connecting block 352 and other components to control the limiting ball 33, thereby completing the release operation of the probe 4.

[0025] Each of the multiple connecting blocks 352 has a push rod 353 rotatably connected to its bottom end. When the connecting block 352 moves downward, the push rod 353 rotates around its rotatable connection point with the connecting block 352. The rotation angle and direction of the push rod 353 are adjusted according to the movement of the connecting block 352. Each of the multiple push rods 353 has a moving rod 354 rotatably connected to its bottom inner wall. When the push rod 353 rotates, it causes the moving rod 354 to slide on its inner wall. The direction and distance of movement of the moving rod 354 change according to the rotation angle and speed of the push rod 353. Each of the multiple moving rods 354 has a connecting block 355 rotatably connected to an adjacent side. When the moving rod 354 moves, the connecting block 355 moves synchronously.

[0026] Specifically, the downward movement of connecting block 352 causes push rod 353 to rotate around it. The rotation of push rod 353 causes moving rod 354 to slide on its inner wall. The movement of moving rod 354 causes connecting block 355 to move synchronously. Motion and force are transmitted through the rotation and sliding of each component.

[0027] Multiple connecting blocks 355 are each fixedly connected to a push plate 356 on an adjacent side. Driven by the connecting blocks 355, the push plate 356 slides along the guide rod 357, thereby pushing the limit ball 33 to slide inwards into the connecting post 32, thus releasing the probe 4. Two guide rods 357 are fixedly connected to the opposite sides of the multiple push plates 356. The guide rods 357 are fixedly connected to the push plates 356, and their main function is to provide guidance and support for the movement of the push plates 356. Multiple reset posts 358 are fixedly connected to the bottom end of the control ring 351. The reset posts 358 are fixedly connected to the control ring 351, and their main function is to reset the control ring 351 after the probe 4 release operation is completed. Multiple damping posts 34 are each fixedly connected to a fixed post 359 on an adjacent side. The fixed post 359 is fixedly connected to the damping post 34, and its main function is to fix and support the damping post 34.

[0028] Specifically, connecting block 2 355 drives push plate 356 to slide along guide rod 357, pushing limit ball 33 to release probe 4. Guide rod 357 provides guidance and support for push plate 356. After the operation is completed, reset column 358 drives control ring 351 to reset, while fixed column 359 provides stable support for damping column 34, ensuring coordinated operation of all structures.

[0029] Reference Figure 4 and Figure 6The adjusting mechanism 5 includes two movable plates 51. Under the action of external force, the two movable plates 51 slide along a pre-set slide or guide structure on the inner wall of the positioning plate 1. The two movable plates 51 are externally slidably connected to the inner wall of the positioning plate 1, and the sliding connection provides stable guidance and support for the movement of the movable plates 51. Movable blocks 52 are fixedly connected to adjacent sides of the two movable plates 51, and the movable blocks 52 are fixedly connected to the movable plates 51. When the movable plates 51 slide on the inner wall of the positioning plate 1, the movable blocks 52 will move synchronously, providing auxiliary guidance for the movable plates 51. Limiting posts 53 are fixedly connected to the inner walls of multiple movable blocks 52. When the movable plates 51 drive the movable blocks 52 to slide, the limiting posts 53 will move together with the movable blocks 52 until a specific part of the limiting post 53 cooperates with the limiting structure on the inner wall of the positioning plate 1, thereby restricting further movement of the movable plates 51.

[0030] Specifically, in the adjustment mechanism 5, the movable plate 51 slides along the inner wall slide of the positioning plate 1 under the action of external force, which drives the movable block 52 to move synchronously. The movable block 52 then drives the limiting column 53 to move until the limiting column 53 cooperates with the limiting structure of the inner wall of the positioning plate 1 to restrict the movable plate 51. The sliding connection provides stable guiding support for it.

[0031] Each of the multiple limiting posts 53 has a fixed plate 54 fixedly connected to its top. The fixed plate 54 controls the movement of the limiting posts 53 through its rigid connection and force transmission, thereby controlling the sliding and fixed states of the moving plate 51. Control bars 55 are fixedly connected to the bottom of two fixed plates 54. When the operator pulls the control bars 55 upwards, the control bars 55 drive the fixed plates 54 upwards. The fixed plates 54 pull the limiting posts 53 upwards, disengaging them from their limiting positions on the inner wall of the positioning plate 1. At this point, the moving plate 51 is no longer constrained and can slide freely on the inner wall of the positioning plate 1, allowing the operator to adjust the gauge dimensions according to measurement needs. Springs 56 are fitted around the top of each of the multiple limiting posts 53. Through elasticity, the adjusting mechanism 5 automatically locks and resets after dimensional adjustment, improving the stability and reliability of the adjusting mechanism 5.

[0032] Specifically, the fixed plate 54 at the top of the limit post 53 is connected to the control bar 55. When the operator pulls the control bar 55, the fixed plate 54 and the limit post 53 can move to release the limit on the moving plate 51. The spring 56 sleeved on the outside of the limit post 53 realizes the automatic locking and reset of the adjustment mechanism 5 through elastic action.

[0033] Reference Figure 6 and Figure 8The upper and lower ends of the fixed column 359 are fixedly connected to the inner wall of the connecting column 32. The fixed column 359 provides a fixed support point for the damping column 34. When the connecting column 32 moves with the detection rod 31, the damping column 34 can extend, retract, or swing around the fixed column 359, thereby controlling the movement of the limiting ball 33. The external parts of multiple limiting balls 33 are fixedly connected to the inner wall of the probe 4. When the limiting balls 33 are pushed by the damping column 34, they will slide outward and be inserted into the preset groove or limiting hole on the inner wall of the probe 4, realizing a firm connection between the probe 4 and the connecting column 32. The external parts of multiple push plates 356 are slidably connected to the inner wall of the probe 4. When the control ring 351 moves downward, it drives the push plates 356 to slide along the preset track on the inner wall of the probe 4.

[0034] Specifically, the fixed column 359 is fixed to the inner wall of the connecting column 32, providing a support point for the damping column 34, so that it can control the limiting ball 33 when the connecting column 32 moves, allowing the limiting ball 33 to be inserted into the inner wall of the probe 4 to achieve connection; while when the control ring 351 moves downward, it can drive the push plate 356 on the inner wall of the probe 4 to slide along the track, preparing for subsequent operations.

[0035] During the sliding process of the push plate 356, it pushes the limiting ball 33 to move inward into the connecting post 32, thereby releasing the limiting ball 33 from fixing the probe 4. The distal ends of multiple guide rods 357 are fixedly connected to the inner wall of the probe 4, providing guidance and support for the sliding of the push plate 356. The bottom ends of multiple reset posts 358 are fixedly connected to the inner wall of the top of the probe 4. When the control ring 351 moves downward under the action of the operator's external force to complete the probe 4 release operation, and the external force is removed, the reset post 358, by virtue of the restoring force generated by its own elastic deformation, pushes the control ring 351 upward, returning it to its initial position. The proximal ends of multiple push plates 356 are fixedly connected to the outer sides of multiple limiting balls 33. When the push plate 356 receives the power transmitted by the control ring 351 and slides, it can directly act on the limiting ball 33, accurately transmitting the pushing force to the limiting ball 33, causing the limiting ball 33 to move inward into the connecting post 32.

[0036] Specifically, the downward movement of the control ring 351 causes the push plate 356 to slide along the guide rod 357 on the inner wall of the probe 4. The push plate 356 transmits the thrust to the limit ball 33, causing it to move into the connecting column 32 and release the fixation of the probe 4. After the operation is completed and the external force is removed, the reset column 358 pushes the control ring 351 to reset by means of elastic restoring force, preparing for the next operation.

[0037] Multiple push plates 356 are slidably connected to the outside of the connecting column 32 on adjacent sides. This slidable connection allows the push plates 356 to work in conjunction with the limiting ball 33 during movement without affecting the normal movement of the connecting column 32. Multiple moving blocks 52 are slidably connected to the inner wall of the positioning plate 1. When the operator pulls the control bar 55, the moving blocks 52 slide along the preset slide rails or guide grooves on the inner wall of the positioning plate 1 under the action of the moving plate 51. The bottom ends of multiple limiting columns 53 are fixedly connected to the inner wall of the bottom end of the positioning plate 1, providing crucial positioning and limiting functions for the adjustment mechanism 5.

[0038] Specifically, the push plate 356 is slidably connected to the connecting column 32 to ensure that it works in coordination with the limiting ball 33 without affecting the movement of the connecting column 32; when the operator pulls the control bar 55, the moving plate 51 drives the moving block 52 to slide along the inner wall slide of the positioning plate 1, while the limiting column 53 fixed to the bottom inner wall of the positioning plate 1 plays a positioning and limiting role for the adjustment mechanism 5.

[0039] The bottom ends of multiple springs 56 are fixedly connected to the top ends of multiple moving blocks 52. When the operator pulls the control bar 55, causing the limit post 53 to move upward, the springs 56 are stretched, storing elastic potential energy. The top ends of the multiple springs 56 are fixedly connected to the top ends of two control bars 55. When the control bars 55 are released, the restoring force of the springs 56 is transmitted through the control bars 55, causing the components to reset. The bottom ends of the two control bars 55 are slidably connected to the top end of the positioning plate 1. The control bars 55 slide on the top end of the positioning plate 1, providing the operator with a convenient adjustment interface.

[0040] Specifically, the bottom of the spring 56 is connected to the moving block 52 and the top is connected to the control bar 55. When the control bar 55 is pulled, the spring 56 stretches and stores energy. After the control bar 55 is released, the restoring force of the spring 56 drives the component to reset through the control bar 55. The control bar 55 slides on the top of the positioning plate 1, providing a convenient interface for adjustment operations.

[0041] The implementation principle of this application embodiment is as follows: During the collaborative operation of the connection mechanism 3 and the release component 35 of the depth gauge, the detection rod 31 drives the connecting column 32 to slide along the inner wall of the outer shell 2. The connecting column 32 drives the damping column 34 connected to it to move synchronously. Under the limiting action of the fixed column 359, the damping column 34 pushes the limiting ball 33 to slide outward, so that the limiting ball 33 is stuck into the corresponding position of the inner wall of the probe 4, and finally the probe 4 and the connection mechanism 3 are fixed.

[0042] When probe 4 needs to be released, control ring 351 drives connecting block 352 to move downward along the inner wall of the top of probe 4. Connecting block 352 drives push rod 353 to rotate around the connection of connecting block 352. During the rotation of push rod 353, it drives moving rod 354 to move. Moving rod 354 drives connecting block 355 to push push plate 356 to slide inward along guide rod 357. Push plate 356 pushes limit ball 33 to disengage from inner wall of probe 4. At the same time, reset post 358 is compressed when control ring 351 moves downward. After the external force is removed, reset post 358 can drive control ring 351 to reset, thereby completing the release operation of probe 4. This achieves efficient, flexible, stable and reliable results in the disassembly and assembly of probe 4, greatly reducing the difficulty and time cost of maintenance or replacement of probe 4 by depth gauge, and ensuring that gauge can continuously and stably complete the detection of non-planar distance in the transmission housing space.

[0043] When the adjustment mechanism 5 needs to be adjusted to fit different sizes of test housings, the control bar 55 is pulled. The control bar 55 drives the fixed plate 54 to move upward. The fixed plate 54 pulls the limiting post 53 to overcome the elastic force of the spring 56 and disengage from the limiting position on the inner wall of the positioning plate 1, thereby releasing the moving plate 51. The moving plate 51, freed from the limiting restraint, can slide freely on the inner wall of the positioning plate 1. The operator manually adjusts the position of the moving plate 51 according to the size of the test housing. After the adjustment is completed, the control bar 55 is released. Under the action of the restoring force of the spring 56, the limiting post 53 drives the fixed plate 54 and the control bar 55 to reset downward. The limiting post 53 re-engages into the corresponding limiting position on the inner wall of the positioning plate 1, firmly fixing the moving plate 51. This makes the overall size of the adjustment mechanism 5 fit the current test housing, completing the measurement preparation. This achieves the effect of the adjustment mechanism 5 quickly adapting to test housings of different sizes, greatly improving the versatility of the depth gauge, reducing the measurement adaptation time caused by changes in the specifications of the test object, reducing the complexity of operation, and improving the efficiency and stability of the test work.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. Depth gauge for the variable spatial distance of a transmission housing, comprising a positioning plate (1), characterized in that: The bottom end of the positioning plate (1) is fixedly connected to the outer shell (2), the inner wall of the outer shell (2) is slidably connected to the connecting mechanism (3), the bottom end of the connecting mechanism (3) is fixedly connected to the probe (4), the inner wall of the positioning plate (1) is slidably connected to the adjusting mechanism (5), and the top end of the positioning plate (1) is fixedly connected to the guide sleeve (6). The connecting mechanism (3) includes a detection rod (31), the outer side of which is slidably connected to the inner wall of the outer shell (2), the bottom end of which is fixedly connected to a connecting column (32), the outer inner wall of which is slidably connected to a plurality of limiting balls (33), the adjacent sides of the plurality of limiting balls (33) are fixedly connected to a damping column (34), and the top end of the probe (4) is slidably connected to a release component (35).

2. The depth gauge for variator housing space-warp distance according to claim 1, wherein: The adjustment mechanism (5) includes two movable plates (51), the two movable plates (51) are slidably connected to the inner wall of the positioning plate (1), and movable blocks (52) are fixedly connected to the adjacent sides of the two movable plates (51). Limiting posts (53) are fixedly connected to the inner walls of multiple movable blocks (52), and fixed plates (54) are fixedly connected to the tops of multiple limiting posts (53). Control strips (55) are fixedly connected to the bottoms of the two fixed plates (54), and springs (56) are sleeved on the outer sides of the tops of multiple limiting posts (53).

3. The depth gauge for variator housing space-warp distance of claim 1, wherein: The release assembly (35) includes a control ring (351), the outer side of which is slidably connected to the inner wall of the top of the probe (4). The bottom end of the control ring (351) is fixedly connected to a plurality of connecting blocks (352). The bottom end of each of the plurality of connecting blocks (352) is rotatably connected to a push rod (353). The bottom inner wall of each of the plurality of push rods (353) is rotatably connected to a moving rod (354). The adjacent sides of each of the plurality of moving rods (354) are rotatably connected to a connecting block (355). The adjacent sides of each of the plurality of connecting blocks (355) are fixedly connected to a push plate (356). The distant sides of each of the plurality of push plates (356) are fixedly connected to two guide rods (357). The bottom end of the control ring (351) is fixedly connected to a plurality of reset posts (358). The adjacent sides of each of the plurality of damping posts (34) are fixedly connected to a fixed post (359).

4. The depth gauge for variator housing space-warp distance of claim 3, wherein: The upper and lower ends of the fixed column (359) are fixedly connected to the inner wall of the connecting column (32), and the outer sides of the plurality of limiting balls (33) are fixedly connected to the inner wall of the probe (4).

5. The depth gauge for variator housing space-warp distance of claim 3, wherein: The outer surfaces of the plurality of push plates (356) are slidably connected to the inner wall of the probe (4), and the outer surfaces of the plurality of guide rods (357) are fixedly connected to the inner wall of the probe (4).

6. The depth gauge for variator housing space-warp distance of claim 3, wherein: The bottom ends of the plurality of reset posts (358) are fixedly connected to the inner wall of the top of the probe (4), the adjacent sides of the plurality of push plates (356) are fixedly connected to the outer side of the distant side of the plurality of limit balls (33), and the adjacent sides of the plurality of push plates (356) are slidably connected to the outer side of the connecting post (32).

7. The depth gauge for variator housing space-warp distance of claim 2, wherein: The external parts of the multiple movable blocks (52) are slidably connected to the inner wall of the positioning plate (1), and the external parts of the bottom ends of the multiple limiting posts (53) are fixedly connected to the inner wall of the bottom end of the positioning plate (1).

8. The depth gauge for variator housing space-warp distance of claim 2, wherein: The bottom ends of the plurality of springs (56) are fixedly connected to the top ends of the plurality of moving blocks (52), the top ends of the plurality of springs (56) are fixedly connected to the top ends of the two control bars (55), and the bottom ends of the two control bars (55) are slidably connected to the top ends of the positioning plate (1).

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