A planar distance measuring mechanism

Abstract

The application discloses a kind of plane distance measuring mechanisms, including fixed frame, the fixed frame is provided with two-way mechanism, the two-way mechanism includes horizontal moving mechanism, light barrier, left baffle, right baffle, mover, vertical rod, follow-up frame, moving rod, moving sleeve, laser range finder, measuring piece and resistance mechanism, the horizontal moving mechanism is connected on fixed frame and light barrier respectively, left baffle is installed on the light barrier of one side, the design of two-way mechanism realizes the synchronous fixation and measurement of measuring piece two sides, improves the accuracy and efficiency of measurement, by the cooperation of horizontal moving mechanism and light barrier, mechanism can flexibly adapt to measuring piece of different sizes, the setting of tailing plate and tailing plate makes the stable fixation of horizontal rod, and the combination of vertical rod and follow-up frame guarantees the stability and directivity of mechanism, this design not only reduces measurement error, but also simplifies operation process, so that measurement work is more convenient and efficient.

Description

Technical Field

[0001] This invention relates to the field of planar distance measurement technology, and more specifically, to a planar distance measurement mechanism. Background Technology

[0002] In the current field of measurement technology, planar distance measuring mechanisms are an important tool for measuring the length and width of various objects. These measuring mechanisms usually rely on laser rangefinders for accurate distance measurement. However, existing equipment faces some limitations in practical applications. When performing measurements, these devices often use the method of attaching the laser rangefinder to both sides of the object being measured. Although this method can theoretically achieve measurement, it is often difficult to achieve ideal results in actual operation. In particular, when facing large objects, existing equipment is difficult to achieve effective attachment, thus affecting the accuracy and reliability of length and width measurements.

[0003] This design deficiency not only limits the applicability of the measuring equipment, but also directly affects the accuracy of the measurement results. For large objects, the measurement points may shift due to the inability to achieve a good fit, resulting in errors in the length or width measurement results. At the same time, for some objects with irregular or uneven surfaces, existing equipment also has difficulty maintaining a stable measurement position. These problems combined make existing planar distance measuring mechanisms face challenges in performing accurate length and width measurements. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, the present invention provides a planar distance measuring mechanism to solve the technical problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a planar distance measuring mechanism, comprising a fixed frame, on which a bidirectional mechanism is provided, the bidirectional mechanism comprising a transverse movement mechanism, a light-blocking plate, a left baffle, a right baffle, a mover, a vertical rod, a follower frame, a moving rod, a moving sleeve, a laser rangefinder, a measuring component, and a contact mechanism. Two fixed frames are provided, and the two fixed frames respectively abut against both sides of the measuring component. The transverse movement mechanism is respectively connected to the fixed frame and the light-blocking plate. A left baffle is installed on one side of the light-blocking plate, and a right baffle is installed on the other side. The vertical rod is installed on the fixed frame, and the follower frame is slidably connected to the vertical rod. The mover is cooperatively connected to the fixed frame and the follower frame. Two moving rods are respectively installed on each follower frame, and a moving sleeve is slidably connected to each moving rod. A laser rangefinder is respectively installed on each moving sleeve. The contact mechanism is installed on the fixed frame.

[0008] The invention is further configured such that an adjusting motor is provided on the side wall of the follower frame, and a belt is engaged on the extended end of the adjusting motor. Each moving sleeve is provided with a positioning block, which is locked onto the belt. A receiving wheel is rotatably provided on the follower frame, and the belt is engaged with the receiving wheel. This design enables the laser rangefinder to move laterally by adjusting the cooperation of the motor and the belt. Therefore, it can measure the distance between the opposing and current light-blocking plates separately, improving the flexibility and accuracy of the measurement process, while also simplifying the operation process and reducing the difficulty of operation.

[0009] The invention is further configured such that the transverse movement mechanism includes a bonding plate, a transverse rod, a tail plate, and guide sleeves. Multiple bonding plates are provided and are respectively mounted on two fixed frames. The bonding plates on both sides abut against the measuring component. The tail plate is mounted on the fixed frame. Two transverse rods are mounted on each bonding plate and the tail plate. A guide sleeve is slidably connected to each transverse rod. Multiple guide sleeves are fixedly mounted on a light-blocking plate. This design enhances the stability and guiding nature of the transverse movement mechanism, ensuring the fixation and positioning of the measuring component during the measurement process, thereby improving the measurement accuracy.

[0010] The invention is further configured such that each fixed frame is provided with a transverse motor, and the extended end of the transverse motor is provided with a lead screw. The fixed frame is provided with an insertion plate, the lead screw is rotatably connected to the insertion plate, and the lead screw is threadedly connected to the light-blocking plate. This design enables the fixed frame to achieve precise movement of the light-blocking plate through the cooperation of the transverse motor and the lead screw, further improving the positioning accuracy of the measuring part and ensuring the accuracy of the measurement results.

[0011] The present invention is further configured such that the contact mechanism includes a receiving rod, a contact rod, and a mounting sleeve. Multiple receiving rods are provided and are respectively mounted on a light-blocking plate. Each receiving rod is fitted with a mounting sleeve, and a contact rod is slidably connected within each mounting sleeve. Multiple telescopic holes are provided on the bonding plate, and contact rods are slidably connected within these holes. The multiple contact rods abut against the side wall of the measuring component. This design allows the contact mechanism to be adjusted according to the requirements of the measuring component and ensures a tight fit between the contact rod and the side wall of the measuring component, thereby improving the accuracy and reliability of the measurement.

[0012] The invention is further configured such that multiple transverse holes are equidistantly provided on the side wall of the mounting sleeve, an insertion rod is slidably provided on each transverse hole, and a snap-fit ​​connector is provided on each insertion rod. Multiple stop grooves are equidistantly provided on the side wall of the abutment rod, the snap-fit ​​connector abuts against the stop groove, and the side wall of the insertion rod abuts against the inner wall of the stop groove. A telescopic frame is provided on the insertion rod, and two tension springs are provided on each telescopic frame. The two tension springs are respectively connected to the side wall of the mounting sleeve. This design provides flexible adjustment capability for the abutment rod, enabling the abutment mechanism to adapt to measuring parts with different requirements, while ensuring the stability and reliability of the abutment rod.

[0013] The invention is further configured such that a rotating sleeve is slidably provided on the side wall of the mounting sleeve, the insertion rod is fitted inside the rotating sleeve, a follower ball is provided inside the telescopic frame, and multiple variable diameter grooves are respectively opened on both sides of the rotating sleeve, the follower ball is slidably connected in the variable diameter groove, and multiple synchronous sleeves are equidistantly provided on the side wall of the rotating sleeve. This design enhances the adjustment capability and adaptability of the abutment mechanism, so that the position of the abutment rod can be adjusted more precisely, thereby improving the accuracy of measurement.

[0014] The invention is further configured such that an adjusting disc is slidably mounted on the mounting sleeve, and multiple synchronizing rods are equidistantly arranged on the lower end surface of the adjusting disc. Each synchronizing rod is slidably connected inside the synchronizing sleeve, and a spring is sleeved on the synchronizing rod. One end of the spring is connected to the adjusting disc, and the other end of the spring is connected to the synchronizing sleeve. This design allows the adjusting disc to achieve fine adjustment of the contact rod through the cooperation of the synchronizing rods and the spring, further improving the accuracy and reliability of the measurement.

[0015] The invention is further configured such that multiple lateral strips are equidistantly arranged on the side wall of the mounting sleeve, and multiple lateral grooves are equidistantly arranged on the inner wall of the adjusting disc. The lateral strips are slidably connected in the lateral grooves. A fitting disc is coaxially arranged on the mounting sleeve, and the adjusting disc abuts against the fitting disc. This design provides positioning for the rotating sleeve, ensuring accurate alignment of the adjusting disc and the mounting sleeve, thereby improving the accuracy of measurement.

[0016] The invention is further configured such that the abutment rod has a rounded head, which makes the connection between the abutment rod and the mounting sleeve more gentle and reduces the damage that may be caused by direct contact.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the present invention provides a planar distance measuring mechanism, which has the following beneficial effects:

[0019] 1. The bidirectional mechanism design enables simultaneous fixation and measurement on both sides of the measuring piece, improving the accuracy and efficiency of the measurement. Through the cooperation of the transverse movement mechanism and the light-blocking plate, the mechanism can flexibly adapt to measuring pieces of different sizes. The setting of the fitting plate and the tail plate ensures the stable fixation of the transverse rod, while the combination of the vertical rod and the follower frame ensures the stability and guidance of the mechanism. This design not only reduces measurement errors but also simplifies the operation process, making the measurement work more convenient and efficient.

[0020] 2. The application of the lateral movement mechanism provides the laser rangefinder with the ability to move laterally, further enhancing the flexibility and accuracy of measurement. The cooperation between the bonding plate and the lateral rod allows the laser rangefinder to slide smoothly along the moving rod, thus ensuring that the distance between the current laser rangefinder and the light-blocking plate can be measured. The snap-fit ​​design of the guide sleeve and belt ensures the accuracy of movement and the convenience of repeated positioning. By adjusting the coordinated work of the motor and belt, the laser rangefinder can move quickly and accurately to the required position, improving the efficiency and accuracy of measurement.

[0021] 3. The design of the contact mechanism allows for corresponding replacement and adjustment based on the measuring part. Through the cooperation of the adjustment plate and the synchronization rod, the distance between the contact rod and the light-blocking plate can be easily adjusted to adapt to different measuring parts and different measuring conditions. This mechanism design not only ensures the accuracy of the measurement but also makes the replacement of the contact rod easier, further improving the functionality and reliability of the entire measuring mechanism and providing a solid foundation for accurate measurement. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a planar distance measuring mechanism according to the present invention;

[0023] Figure 2 This is a schematic diagram of a planar distance measuring mechanism without measuring components according to the present invention;

[0024] Figure 3 This is a schematic diagram of the fixed frame structure in this invention;

[0025] Figure 4 This is a schematic diagram of the follower frame in this invention;

[0026] Figure 5 This is a schematic diagram of the transverse movement mechanism in this invention;

[0027] Figure 6This is a schematic diagram of the bonding plate and the supporting rod in this invention;

[0028] Figure 7 This is a schematic diagram of the abutment mechanism in this invention;

[0029] Figure 8 This is a cross-sectional view of the abutment mechanism in this invention.

[0030] Figure 9 This is a schematic diagram of the rotating sleeve in this invention;

[0031] Figure 10 This is a schematic diagram of the mounting sleeve in this invention;

[0032] Figure 11 This is a schematic diagram of the structure of the adjusting disc in this invention.

[0033] In the diagram: 1. Fixed frame; 2. Light-blocking plate; 3. Left baffle; 4. Right baffle; 5. Movers; 6. Vertical rod; 7. Follower frame; 8. Moving rod; 9. Moving sleeve; 10. Laser rangefinder; 11. Measuring component; 12. Adjusting motor; 13. Belt; 14. Positioning block; 15. Receiving wheel; 16. Adhesive plate; 17. Horizontal rod; 18. Tail plate; 19. Guide sleeve; 20. Horizontal motor; 21. Lead screw; 22. Insert 23. Insert plate; 24. Receiving rod; 25. Abutting rod; 26. Mounting sleeve; 27. Telescopic hole; 28. Transverse hole; 29. ​​Insertion rod; 30. Snap connector; 31. Stop groove; 32. Telescopic frame; 33. Tension spring; 34. Rotating sleeve; 35. Follower ball; 36. Variable diameter groove; 37. Synchronizing sleeve; 38. Adjusting disc; 39. Synchronizing rod; 40. Spring; 41. Side bar; 42. Side groove; 43. Fitting disc; 44. Round head. Detailed Implementation

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0036] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0037] Please see Figures 1 to 6 A planar distance measuring mechanism includes a fixed frame 1, on which a bidirectional mechanism is provided. The bidirectional mechanism includes a lateral movement mechanism, a light-blocking plate 2, a left baffle 3, a right baffle 4, a mover 5, a vertical rod 6, a follower frame 7, a moving rod 8, a moving sleeve 9, a laser rangefinder 10, a measuring component 11, and an abutment mechanism. Two fixed frames 1 are provided, and the two fixed frames 1 abut against the two sides of the measuring component 11 respectively. The lateral movement mechanism is connected to the fixed frame 1 and the light-blocking plate 2 respectively. The left baffle 3 is installed on one side of the light-blocking plate 2, and the right baffle 4 is installed on the other side of the light-blocking plate 2. The vertical rod 6 is installed on the fixed frame 1. The follower frame 7 is slidably connected to the vertical rod 6. The mover 5 is connected to the fixed frame 1 and the follower frame 7. Two moving rods 8 are installed on each follower frame 7. Moving sleeves 9 are slidably connected to the moving rods 8. A laser rangefinder 10 is installed on each moving sleeve 9. The abutment mechanism is installed on the fixed frame 1. An adjusting motor 12 is provided on the side wall of the follower frame 7. A belt 13 is engaged on the extended end of the adjusting motor 12. A positioning block 14 is provided on each moving sleeve 9. The positioning block 14 is locked on the belt 13. A receiving wheel 15 is rotatably provided on the follower frame 7. The belt 13 is engaged on the receiving wheel 15.

[0038] Working principle: When measuring part 11, firstly, depending on whether the measurement is of length or width, place the two fixing frames 1 against the sides of the measuring part 11, respectively. Then, attach the two fixing frames 1 to the measuring part 11. At this time, start the horizontal motors 20 on both sides. The horizontal motors 20 drive the rotation of the two lead screws 21. Since the two lead screws 21 are threaded onto the light-blocking plate 2, they will cause the light-blocking plate 2 to abut against the side wall of the measuring part 11. Since the contact rod 24 is inside the bonding plate 16 in the initial position, it can drive the guide sleeve 1 on the light-blocking plate 2 under the action of the lead screw 21. 9 slides along the transverse bar 17, and then pushes the abutment rod 24 to slide along the telescopic hole 26, so that multiple abutment rods 24 simultaneously extend and retract toward the measuring element 11. Then, multiple abutment rods 24 respectively press against the side wall of the measuring element 11, which will cause the bonding plate 16 to separate from the bonding of the measuring element 11. Since the abutment rods 24 on both sides move respectively, they can drive the two fixing frames 1 to move in the opposite direction, so that the abutment rods 24 respectively fit against the side wall of the measuring element 11, avoiding the bonding plate 16 and the side wall of the measuring element 11 from protruding, thus affecting the measurement effect. At this time, the two fixing frames 1 have completed the fixing process.

[0039] After the two fixed frames 1 are fixed, the laser rangefinders 10 on both sides can slide laterally. First, the laser emitted by one side of the laser rangefinder 10 can pass through the corresponding light-blocking plate 2, and then the laser shines on the opposite light-blocking plate 2. At this time, the distance generated by the two laser rangefinders 10 is recorded. Then, the two laser rangefinders 10 move laterally, and then the laser rangefinders 10 move to the corresponding light-blocking plate 2. Here, the distance is measured using the right baffle 4. The laser rangefinder 10 shines on the right baffle 4, and then the distance is recorded. Since the recording is done on both sides, and there is a gap between the contact rod 24 and the light-blocking plate 2... The position is known, so the distance measured by the laser rangefinder 10 on each side is subtracted from the distance between the two contact rods 24 and the light-blocking plate 2, and then the distance between the corresponding laser rangefinder 10 and the light-blocking plate 2 is subtracted to complete the measurement process. In the calculation process, the thickness of the light-blocking plate 2 needs to be compensated to avoid deviation. By comparing the two data, the distance between the two laser rangefinders 10 can be detected. If the error is within the specified range, it is an accurate value. If the deviation is large, it is discarded. Multiple measurements are taken to complete the single-sided measurement process. Then, the measurement is moved to the other side of the measuring component 11 to complete the length and width measurement process.

[0040] To enable the lateral movement of the laser rangefinder 10, a lateral movement mechanism is added. Please refer to [link / reference]. Figures 3 to 4 The transverse mechanism includes a bonding plate 16, a transverse rod 17, a tail plate 18, and a guide sleeve 19. Multiple bonding plates 16 are provided, and multiple bonding plates 16 are respectively installed on two fixed frames 1. The bonding plates 16 on both sides abut against the measuring piece 11. The tail plate 18 is installed on the fixed frame 1. Two transverse rods 17 are installed on each bonding plate 16 and the tail plate 18. A guide sleeve 19 is slidably connected to each transverse rod 17. Multiple guide sleeves 19 are respectively fixedly installed on the light-blocking plate 2. A transverse motor 20 is provided on each fixed frame 1. A lead screw 21 is provided on the extended end of the transverse motor 20. An insertion plate 22 is provided on the fixed frame 1. The lead screw 21 is rotatably connected to the insertion plate 22 and threadedly connected to the light-blocking plate 2.

[0041] Working principle: When the laser rangefinder 10 needs to be moved, the corresponding adjustment motor 12 is started first. The adjustment motor 12 drives the belt 13 to rotate. The belt 13 is locked on the positioning block 14, so it can drive the moving sleeve 9 to move. Since the positioning block 14 is slidably connected to the moving rod 8, the moving sleeve 9 can slide along the moving rod 8, thereby driving the laser rangefinder 10 to move and completing the distance measurement process. Therefore, the laser rangefinder 10 can be used to illuminate the opposite light blocking plate 2 and the current light blocking plate 2 respectively.

[0042] Please see Figures 7 to 11To enable adjustment and replacement of the abutment rod 24, an abutment mechanism is added. This mechanism includes a receiving rod 23, an abutment rod 24, and a mounting sleeve 25. Multiple receiving rods 23 are provided and mounted on the light-blocking plate 2. Each receiving rod 23 is fitted with a mounting sleeve 25, and each mounting sleeve 25 contains a slidingly connected abutment rod 24. The bonding plate 16 has multiple telescopic holes 26, each containing a slidingly connected abutment rod 24. The multiple abutment rods 24 abut against the measuring plate 24. On the side wall of the measuring component 11, and on the side wall of the mounting sleeve 25, multiple transverse holes 27 are equally spaced. An insertion rod 28 is slidably mounted on each transverse hole 27. Each insertion rod 28 is equipped with a locking connector 29. On the side wall of the contact rod 24, multiple stop grooves 30 are equally spaced. The locking connectors 29 abut against the stop grooves 30, and the side walls of the insertion rods 28 abut against the inner walls of the stop grooves 30. A telescopic bracket 31 is mounted on the insertion rod 28, and each telescopic bracket 31 is equipped with two tension springs 32. The components are respectively connected to the side wall of the mounting sleeve 25. A rotating sleeve 33 is slidably provided on the side wall of the mounting sleeve 25. The insertion rod 28 fits inside the rotating sleeve 33. A follower ball 34 is provided inside the telescopic frame 31. Multiple variable diameter grooves 35 are opened on both sides of the rotating sleeve 33. The follower ball 34 is slidably connected in the variable diameter groove 35. Multiple synchronous sleeves 36 are equidistantly provided on the side wall of the rotating sleeve 33. An adjusting plate 37 is slidably provided on the mounting sleeve 25. Multiple synchronous rods 38 are equidistantly provided on the lower end surface of the adjusting plate 37. Each synchronous rod 38... 8 are slidably connected inside the synchronization sleeve 36, and a spring 39 is sleeved on the synchronization rod 38. One end of the spring 39 is connected to the adjustment plate 37, and the other end of the spring 39 is connected to the synchronization sleeve 36. Multiple lateral strips 40 are equidistantly arranged on the side wall of the mounting sleeve 25. Multiple lateral grooves 41 are equidistantly opened on the inner wall of the adjustment plate 37. The lateral strips 40 are slidably connected in the lateral grooves 41. A fitting plate 42 is coaxially arranged on the mounting sleeve 25. The adjustment plate 37 abuts against the fitting plate 42. A circle is provided on the abutting rod 24.

[0043] Working principle: Since the distance between the contact rod 24 and the light-blocking plate 2 needs to be known during measurement, and different contact rods 24 may need to be replaced under different circumstances, the transverse rod 17 needs to be pressed against the corresponding stop groove 30. The distance between the contact rod 24 and the light-blocking plate 2 can be adjusted by changing the contact position. When adjusting the position, the connection between the transverse rod 17 and the stop groove 30 needs to be disengaged. First, pull the adjusting plate 37 upwards to disengage the lateral groove 41 on the adjusting plate 37 from the lateral strip 40. Then, the synchronizing rod 38 is still inserted into the synchronizing sleeve 36. Rotating the adjusting plate 37 will cause the rotating sleeve 33 to rotate along the mounting sleeve 25. Since the follower ball 34 is slidably connected to the variable diameter groove 35, it will cause the telescopic frame 31 to expand along the variable diameter groove 35, thus causing multiple telescopic frames 31 to expand outwards synchronously. The tension spring 32 is in a stretched state. Then, the insertion rod... 28 expands outward along the transverse hole 27, thereby releasing the engagement between the transverse rod 17 and the stop groove 30. At this time, the abutment rod 24 and the mounting sleeve 25 are in a slidable connection state. Since the distance of each stop groove 30 is the same, when different lengths need to be adjusted, it is only necessary to change the position of the insertion rod 28 in different stop grooves 30. Then, the abutment rod 24 is pulled to the corresponding position. At this time, the adjusting disc 37 is rotated, and multiple insertion rods 28 are inserted inward. Under the guidance of the snap joint 29, the insertion rods 28 are locked in the stop groove 30. At this time, the spring 39 generates a pulling force, causing the adjusting disc 37 to slide downward. Then, the lateral groove 41 is locked in the lateral strip 40, thereby ensuring the limit of the adjusting disc 37. The adjusting disc 37 abuts against the fitting disc 42, thereby ensuring the fixing process. At this time, the rotating sleeve 33 is in a fixed state, thereby ensuring the stability of the fixing. Therefore, the distance adjustment is completed.

[0044] When it is necessary to replace the corresponding abutment rod 24, first remove the existing abutment rod 24, then slide the new abutment rod 24 into the mounting sleeve 25, and then, according to the above operation, disassemble the multiple insertion rods 28, slide the abutment rod 24 into the mounting sleeve 25, and then fix it into the corresponding stop groove 30, thus completing the replacement process.

[0045] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A planar distance measuring mechanism, comprising a fixed frame (1), characterized in that: The fixed frame (1) is provided with a bidirectional mechanism, which includes a transverse movement mechanism, a light-blocking plate (2), a left baffle (3), a right baffle (4), a mover (5), a vertical rod (6), a follower frame (7), a moving rod (8), a moving sleeve (9), a laser rangefinder (10), a measuring component (11), and an abutment mechanism. There are two fixed frames (1), and the two fixed frames (1) abut against the two sides of the measuring component (11) respectively. The transverse movement mechanism is connected to the fixed frame (1) and the light-blocking plate (2) respectively. The light-blocking plate (2) on one side... A left baffle (3) is installed on the top, and a right baffle (4) is installed on the light-blocking plate (2) on the other side. The vertical rod (6) is installed on the fixed frame (1), and the follower frame (7) is slidably connected to the vertical rod (6). The mover (5) is connected to the fixed frame (1) and the follower frame (7). Two moving rods (8) are installed on each follower frame (7). Moving sleeves (9) are slidably connected to the moving rods (8). A laser rangefinder (10) is installed on each moving sleeve (9). The abutment mechanism is installed on the fixed frame (1). The transverse movement mechanism includes a bonding plate (16), a transverse rod (17), a tail plate (18), and a guide sleeve (19). Multiple bonding plates (16) are provided, and each bonding plate (16) is respectively mounted on two fixed frames (1). The bonding plates (16) on both sides abut against the measuring element (11). The tail plate (18) is mounted on the fixed frame (1). Two transverse rods (17) are respectively mounted on each bonding plate (16) and tail plate (18). A guide sleeve (19) is slidably connected to each transverse rod (17). Multiple guide sleeves (19) are respectively fixedly mounted on the light-blocking plate (2). The contact mechanism includes a receiving rod (23), a contact rod (24), and a mounting sleeve (25). Multiple receiving rods (23) are provided, and each receiving rod (23) is mounted on a light-blocking plate (2). Each receiving rod (23) is mounted with a mounting sleeve (25), and each mounting sleeve (25) is slidably connected to a contact rod (24). Multiple telescopic holes (26) are provided on the bonding plate (16), and each telescopic hole (26) is slidably connected to a contact rod (24). The multiple contact rods (24) abut against the side wall of the measuring component (11). The mounting sleeve (25) has multiple transverse holes (27) equidistantly spaced on its side wall. Each transverse hole (27) has an insertion rod (28) slidably mounted on it. Each insertion rod (28) has a snap-fit ​​connector (29). The side wall of the contact rod (24) has multiple stop grooves (30) equidistantly spaced on it. The snap-fit ​​connector (29) abuts against the stop groove (30), and the side wall of the insertion rod (28) abuts against the inner wall of the stop groove (30). The insertion rod (28) has a telescopic frame (31), and each telescopic frame (31) has two tension springs (32). The two tension springs (32) are respectively connected to the side wall of the mounting sleeve (25). A rotating sleeve (33) is slidably provided on the side wall of the mounting sleeve (25). The insertion rod (28) fits inside the rotating sleeve (33). A follower ball (34) is provided inside the telescopic frame (31). Multiple variable diameter grooves (35) are opened on both sides of the rotating sleeve (33). The follower ball (34) is slidably connected in the variable diameter groove (35). Multiple synchronous sleeves (36) are equidistantly provided on the side wall of the rotating sleeve (33). An adjusting disc (37) is slidably mounted on the mounting sleeve (25). Multiple synchronizing rods (38) are equidistantly arranged on the lower end face of the adjusting disc (37). Each synchronizing rod (38) is slidably connected within the synchronizing sleeve (36), and a spring (39) is sleeved on each synchronizing rod (38). One end of the spring (39) is connected to the adjusting disc (37), and the other end is connected to the synchronizing sleeve (36). The mounting sleeve (25) has multiple lateral strips (40) equidistantly arranged on its side wall, and multiple lateral grooves (41) equidistantly arranged on the inner wall of the adjusting plate (37). The lateral strips (40) are slidably connected in the lateral grooves (41). The mounting sleeve (25) has a fitting plate (42) coaxially arranged on its side wall, and the adjusting sleeve abuts against the fitting plate (42). The abutment rod (24) is provided with a round head (43); Each of the fixed frames (1) is provided with a horizontal motor (20), and the extended end of the horizontal motor (20) is provided with a lead screw (21). The fixed frame (1) is provided with an insertion plate (22), the lead screw (21) is rotatably connected to the insertion plate (22), and the lead screw (21) is threadedly connected to the light blocking plate (2). When measuring the measuring part (11), first, depending on whether the length or width needs to be measured, place the two fixing frames (1) against the sides of the measuring part (11) on the length or width respectively. Then, attach the two fixing frames (1) to the measuring part (11). At this time, start the horizontal motors (20) on both sides. The horizontal motors (20) drive the rotation of the two lead screws (21). Since the two lead screws (21) are threaded to the light blocking plate (2) respectively, the light blocking plate (2) will be driven to abut against the side wall of the measuring part (11). Since the contact rod (24) is inside the bonding plate (16) in the initial position, the light blocking plate (2) can be driven by the lead screw (21). The guide sleeve (19) slides along the transverse rod (17), and then pushes the abutment rod (24) to slide along the telescopic hole (26), so that multiple abutment rods (24) extend and retract synchronously toward the measuring part (11), and then multiple abutment rods (24) press against the side wall of the measuring part (11) respectively, which will cause the bonding plate (16) to separate from the bonding of the measuring part (11). Since the abutment rods (24) on both sides move respectively, the fixed frames (1) on both sides can be driven to move in the opposite direction, and then the abutment rods (24) are respectively bonded to the side wall of the measuring part (11), avoiding the bonding plate (16) and the side wall of the measuring part (11) from having protrusions, which would affect the measurement effect.

2. The planar distance measuring mechanism according to claim 1, characterized in that: An adjusting motor (12) is provided on the side wall of the follower frame (7). A belt (13) is engaged on the extended end of the adjusting motor (12). A positioning block (14) is provided on each of the moving sleeves (9). The positioning block (14) is locked on the belt (13). A receiving wheel (15) is rotatably provided on the follower frame (7). The belt (13) is engaged on the receiving wheel (15).

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