Linear guide rail pitch measuring device

Abstract

The invention belongs to the technical field of pitch measurement, and particularly discloses a linear guide rail pitch measurement device, which comprises a laser range finder, a protective cleaning mechanism is rotatably connected to the outside of the laser range finder, the protective cleaning mechanism is used for protecting and cleaning a laser emission head, and positioning mechanisms are rotatably connected to two sides of the laser range finder. The positioning mechanism is used for positioning the protective cleaning mechanism, a stable deviation prevention mechanism is arranged on the side, away from the protective cleaning mechanism, of the outer portion of the laser range finder, and a locking mechanism is arranged on the outer portion of the stable deviation prevention mechanism. Through the protection cleaning mechanism, the laser emitting end of the device has a protection structure when the device is idle, so that the economic loss is avoided, meanwhile, the laser emitting end can be cleaned when the protection cleaning mechanism is opened, the lens does not need to be wiped specially, the detection efficiency is improved, and meanwhile, the practicability is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of hole distance measurement, and specifically discloses a linear guide rail hole distance measurement device. Background Art

[0002] The linear guide hole distance measuring device usually adopts laser distance measurement technology, which transmits a laser beam to the target object, receives the reflected laser signal, and uses the flight time or phase change of the laser to calculate the distance between the target object and the measuring device. When measuring the linear guide hole distance, the laser measuring device can accurately measure the distance between each mounting hole, thereby ensuring the installation accuracy of the guide and the normal operation of the equipment. The main function of the linear guide hole distance measuring device is to accurately measure the distance between the mounting holes on the linear guide to ensure the installation accuracy and performance of the guide.

[0003] The laser emitting end of the linear guide hole spacing measuring device in the prior art generally does not have a protective structure, which makes it easy for the device to be accidentally knocked off or a sharp object to accidentally hit the laser emitting end of the device when idle, causing damage to the laser emitting end, thereby causing damage to the device and causing economic losses. At the same time, the laser emitting end needs to be wiped during use, which results in an extra step in measurement and reduces the efficiency of detection. Summary of the invention

[0004] In view of this, the purpose of the present invention is to propose a linear guide rail hole distance measuring device to solve the problem that the laser emitting end of the linear guide rail hole distance measuring device in the prior art generally does not have a protective structure, resulting in damage to the laser emitting end, thereby causing damage to the device and causing economic losses, and the laser emitting end needs to be specially wiped during use, thereby reducing the detection efficiency.

[0005] To achieve the above purpose, the present invention provides a linear guide rail hole distance measuring device, comprising a laser rangefinder, wherein the outside of the laser rangefinder is rotatably connected to a protective cleaning mechanism, the protective cleaning mechanism is used to protect and clean a laser transmitting head, both sides of the laser rangefinder are rotatably connected to positioning mechanisms, the positioning mechanisms are used to position the protective cleaning mechanisms, a stabilizing anti-deflection mechanism is provided on the side of the outside of the laser rangefinder away from the protective cleaning mechanism, a locking mechanism is provided on the outside of the stabilizing anti-deflection mechanism, the locking mechanism can stably install the stabilizing anti-deflection mechanism on the outside of the laser rangefinder, a linear track is provided at the bottom of the laser rangefinder, the stabilizing anti-deflection mechanism is used to stabilize the laser rangefinder on the top of the linear track and prevent the laser rangefinder from deflecting.

[0006] In the above technical solution, preferably, the protective cleaning mechanism includes a protective hoop, a mounting box is fixedly connected to a side of the protective hoop away from the laser rangefinder, a clamping spring is arranged inside the mounting box, a limiting plate is slidably connected to the inside of the mounting box, a cleaning brush is fixedly connected to a side of the limiting plate away from the clamping spring, a fixing cylinder is fixedly connected to both sides of the mounting box inside the protective hoop, a reset spring is arranged inside the fixing cylinder, a limiting disk is slidably connected to the inside of the fixing cylinder, a locking head is fixedly connected to a side of the limiting disk away from the reset spring, two locking holes are provided on a side of the laser rangefinder close to the protective hoop, and the locking head is engaged with the locking holes.

[0007] In the above technical solution, preferably, the positioning mechanism includes a rotating cylinder, a side of the rotating cylinder away from the protective hoop is rotatably connected to the outside of the laser rangefinder, a fiber ring is slidably connected to the inside of the rotating cylinder, a side of the fiber ring close to the protective hoop is fixedly connected to an inner rod, a tension spring is fixedly connected between the inside of the inner rod and the inside of the rotating cylinder, and one end of the inner rod away from the rotating cylinder is fixedly connected to the outside of the protective hoop.

[0008] In the above technical solution, preferably, the stabilizing and anti-deflection mechanism includes a mounting frame, the interior of the mounting frame is clamped on the outside of the laser rangefinder on a side away from the protective cleaning mechanism, the bottom of the mounting frame is fixedly connected to a mounting base plate, a sliding groove is provided inside the bottom end of the mounting base plate, two sliding blocks are slidably connected inside the sliding groove, a clamping stabilizing plate is fixedly connected to the bottom of the sliding block, and a plurality of clamping tension springs are fixedly connected between the two sliding blocks.

[0009] In the above technical scheme, preferably, the locking mechanism includes two card slots, and the two card slots are respectively opened on both sides of the interior of the installation frame, and through slots are opened inside the two sides of the installation frame, and both sides of the installation frame are fixedly connected with fixed plates, and the side of the fixed plate close to the protective cleaning mechanism is fixedly connected with a sliding plate, and the side of the sliding plate close to the protective cleaning mechanism is fixedly connected with a limited sliding plate, and the outer side of the limited sliding plate is slidably connected with a driving jacket, and the interior of the driving jacket is provided with two tension springs, and the side of the driving jacket close to the protective cleaning mechanism is fixedly connected with a bent card plate, and the two sides of the laser rangefinder are fixedly connected with locking plates.

[0010] In the above technical solution, preferably, one end of the return spring is fixedly connected to the inside of the fixed cylinder, and the other end of the return spring is fixedly connected to the side of the limit plate away from the engaging head.

[0011] In the above technical solution, preferably, one end of the pressing spring is fixedly connected to the inside of the installation box, and the other end of the pressing spring is fixedly connected to the side of the limiting plate away from the cleaning brush.

[0012] In the above technical solution, preferably, the clamping stabilizing plate is slidably connected to the inner side of the bottom end of the sliding groove, and the inner side of the clamping stabilizing plate is rotatably connected to a rotating roller.

[0013] In the above technical solution, preferably, one end of the second tension spring is fixedly connected to a side of the limiting sliding plate close to the bending clamping plate, and the other end of the second tension spring is fixedly connected to the inside of the driving sleeve.

[0014] In the above technical solution, preferably, a locking groove is provided inside the locking plate, the bent clamping plate is slidably connected inside the through groove, and the bent clamping plate is engaged with the locking groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention realizes that when the device is idle, the laser emitting end of the device has a protective structure through the protective cleaning mechanism to prevent damage to the device caused by being hit by sharp objects or the device falling, thereby avoiding economic losses. At the same time, when the protective cleaning mechanism is opened, the laser emitting end can also be cleaned at the same time, so there is no need to wipe the lens intentionally, which improves the efficiency of detection and improves practicality.

[0017] 2. The present invention can stably place the laser rangefinder outside the linear track by setting a stable anti-deflection mechanism, thereby preventing the device from falling during measurement and protecting the device. At the same time, when the stable anti-deflection mechanism is clamped on both sides of the linear track, it can prevent the device from tilting, thereby reducing measurement errors and improving measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A perspective view of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the installation base plate in the present invention;

[0020] Figure 3 It is a schematic diagram of the structure of the protective hoop in the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of the cleaning brush in the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the rotating drum in the present invention;

[0023] Figure 6It is a schematic diagram of the structure of the limiting plate in the present invention;

[0024] Figure 7 It is a structural schematic diagram of the installation frame in the present invention;

[0025] Figure 8 It is a structural schematic diagram of the sliding block in the present invention;

[0026] Fig. 9 It is a structural schematic diagram of the sliding board in the present invention;

[0027] Fig.10 It is a schematic diagram of the structure of the through groove in the present invention;

[0028] Fig.11 It is a structural schematic diagram of the locking plate in the present invention.

[0029] In the figure: 1. Laser rangefinder; 2. Protection and cleaning mechanism; 201. Protection hoop; 202. Mounting box; 203. Tightening spring; 204. Limiting plate; 205. Cleaning brush; 206. Fixed cylinder; 207. Return spring; 208. Limiting plate; 209. Clamping head; 210. Clamping hole; 3. Positioning mechanism; 301. Rotating cylinder; 302. Fiber ring; 303. Inner rod; 304. Tension spring 1; 4. Stable anti-bias mechanism; 401. Mounting frame; 402, mounting base plate; 403, sliding groove; 404, sliding block; 405, clamping stabilizing plate; 406, rotating roller; 407, clamping tension spring; 5, locking mechanism; 501, card slot; 502, through slot; 503, fixed plate; 504, sliding plate; 505, limiting sliding plate; 506, driving jacket; 507, tension spring 2; 508, bending card plate; 509, locking plate; 510, engaging groove; 6, linear track. DETAILED DESCRIPTION

[0030] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] like Figure 1-Figure 11A linear guide hole distance measuring device shown includes a laser rangefinder 1, the outside of the laser rangefinder 1 is rotatably connected to a protective cleaning mechanism 2, the protective cleaning mechanism 2 is used to protect and clean the laser emission head, both sides of the laser rangefinder 1 are rotatably connected to positioning mechanisms 3, the positioning mechanisms 3 are used to position the protective cleaning mechanism 2, a stabilizing anti-deflection mechanism 4 is provided on the side of the outside of the laser rangefinder 1 away from the protective cleaning mechanism 2, a locking mechanism 5 is provided on the outside of the stabilizing anti-deflection mechanism 4, the locking mechanism 5 can stably install the stabilizing anti-deflection mechanism 4 on the outside of the laser rangefinder 1, a linear track 6 is provided at the bottom of the laser rangefinder 1, the stabilizing anti-deflection mechanism 4 is used to stabilize the laser rangefinder 1 on the top of the linear track 6 and prevent the laser rangefinder 1 from deflecting.

[0033] The protective cleaning mechanism 2 includes a protective hoop 201, which is rotatably connected to the outside of the laser rangefinder 1, and the protective hoop 201 provides an installation position. The side of the protective hoop 201 away from the laser rangefinder 1 is fixedly connected with an installation box 202, and the installation box 202 provides an installation position. A tightening spring 203 is arranged inside the installation box 202, and the inside of the installation box 202 is slidably connected with a limit plate 204, and the side of the limit plate 204 away from the tightening spring 203 is fixedly connected with a cleaning brush 205, and the tightening spring 203 can use its own elastic force to press the cleaning brush 205 tightly against the laser emitting end of the laser rangefinder 1, and the inside of the protective hoop 201 is fixedly connected with fixed cylinders 206 on both sides of the installation box 202, and the fixed cylinder 206 An installation position is provided, a return spring 207 is arranged inside the fixed cylinder 206, a limit plate 208 is slidably connected inside the fixed cylinder 206, a locking head 209 is fixedly connected to the side of the limit plate 208 away from the return spring 207, the return spring 207 can push the limit plate 208 to move to the outside of the fixed cylinder 206, and then drive the locking head 209 to move in the direction of the laser rangefinder 1, and two locking holes 210 are provided on the side of the laser rangefinder 1 close to the protective hoop 201, the locking head 209 and the locking hole 210 can maintain the stability of the protective hoop 201, the locking head 209 and the locking hole 210 are locked, one end of the return spring 207 is fixedly connected to the inside of the fixed cylinder 206, and the return spring 207 The other end is fixedly connected to the side of the limit plate 208 away from the locking head 209, one end of the clamping spring 203 is fixedly connected to the inside of the installation box 202, and the other end of the clamping spring 203 is fixedly connected to the side of the limit plate 204 away from the cleaning brush 205. When using the laser rangefinder 1, the protective hoop 201 is rotated upward. At this time, the locking head 209 moves toward the inside of the fixed cylinder 206 under the pressure of the inner wall of the locking hole 210, and then can drive the limit plate 208 to move toward the inside of the fixed cylinder 206. When the protective hoop 201 rotates perpendicular to the laser rangefinder 1, the limit plate 208 can push the limit plate 208 to move outward under the action of the reset spring 207, and then can drive the locking head 209 outward. When the laser rangefinder 1 is not in use, the protective hoop 201 is first rotated downward. When the engaging head 209 contacts the outer wall of the laser rangefinder 1, the engaging head 209 is driven to move toward the inside of the fixed cylinder 206 under the pressure of the outer wall, thereby driving the limit plate 208 to move toward the inside of the fixed cylinder 206, and then the limit plate 208 can be used to squeeze the return spring 207. When the engaging head 209 moves to the position of the engaging hole 210, the limit plate 208 is pushed to move outward under the reaction of the return spring 207, and then the engaging head 209 can be driven to move in the direction away from the return spring 207, thereby realizing the engagement of the engaging head 209 with the engaging hole 210, and then the protective hoop 201 can be stabilized.When the protective hoop 201 rotates up and down, it can drive the mounting box 202 to move up and down, so that the cleaning brush 205 can be used to clean the transmitting head of the laser rangefinder 1, and the cleaning brush 205 can be tightly pressed against the transmitting head of the laser rangefinder 1 by the pressing spring 203.

[0034] The positioning mechanism 3 includes a rotating cylinder 301, which can provide an installation position. The side of the rotating cylinder 301 away from the protective hoop 201 is rotatably connected to the outside of the laser rangefinder 1. The inside of the rotating cylinder 301 is slidably connected with a fiber ring 302, which has a limiting function. The side of the fiber ring 302 close to the protective hoop 201 is fixedly connected with an inner rod 303. A tension spring 1 304 is fixedly connected between the inside of the inner rod 303 and the inside of the rotating cylinder 301. The tension spring 1 304 can use its own tension to pull the protective hoop 201 to prevent the protective hoop from rotating to the top of the laser rangefinder 1. 201 rotates downward, and one end of the inner rod 303 away from the rotating cylinder 301 is fixedly connected to the outside of the protective hoop 201. When the protective hoop 201 rotates upward, the inner rod 303 is pulled toward the inside away from the rotating cylinder 301, and then the tension spring 1 304 can be stretched. When the protective hoop 201 moves to the upper side of the laser rangefinder 1, the inner rod 303 moves toward the inside of the rotating cylinder 301 under the action of the tension spring 1 304, and then the tension spring 1 304 can be used to pull the protective hoop 201, so that the protective hoop 201 will not rotate downward when the laser rangefinder 1 is in use.

[0035] The stabilizing and anti-deflection mechanism 4 comprises a mounting frame 401, the interior of the mounting frame 401 is clamped on the outside of the laser rangefinder 1 away from the protective cleaning mechanism 2, the bottom of the mounting frame 401 is fixedly connected with a mounting base plate 402, the mounting base plate 402 can provide a mounting position, a sliding groove 403 is provided inside the bottom end of the mounting base plate 402, the interior of the sliding groove 403 is slidably connected with two sliding blocks 404, the bottom of the sliding block 404 is fixedly connected with a clamping stabilizing plate 405, the clamping stabilizing plate 405 can be clamped on the outside of the linear track 6, a plurality of clamping tension springs 407 are fixedly connected between the two sliding blocks 404, the clamping tension springs 407 can use their own reaction to make the clamping stabilizing plate 405 tightly clamped on the outside of the linear track 6, the clamping stabilizing plate 405 is slidably connected to the inner side of the bottom end of the sliding groove 403, and the inner side of the clamping stabilizing plate 405 is rotated The rotating roller 406 can facilitate the laser rangefinder 1 to slide on the outside of the linear track 6. When the laser rangefinder 1 is used, the mounting frame 401 is engaged with the outside of the laser rangefinder 1. At this time, the clamping stabilizing plate 405 is pulled to both sides, thereby driving the sliding block 404 to move to both sides inside the sliding groove 403, and then the clamping tension spring 407 can be stretched. At this time, the linear track 6 is placed between the two clamping stabilizing plates 405, the clamping stabilizing plates 405 are released, and the sliding block 404 is pulled to move to the middle under the action of the clamping tension spring 407, and then the clamping stabilizing plates 405 can be used to clamp the two ends of the linear track 6, so as to prevent the laser rangefinder 1 from sliding off the linear track 6, and also prevent the laser rangefinder 1 from tilting and deviating, and then prevent the measurement result from having a large deviation.

[0036] The locking mechanism 5 includes two card slots 501, and the two card slots 501 are respectively opened on both sides of the interior of the installation frame 401. Through slots 502 are opened inside the two sides of the installation frame 401. Both sides of the installation frame 401 are fixedly connected with fixed plates 503, and the fixed plates 503 provide installation positions. The fixed plates 503 are fixedly connected to the side of the protective cleaning mechanism 2 with a sliding plate 504, and the sliding plate 504 is fixedly connected to the side of the protective cleaning mechanism 2 with a limited sliding plate 505, and the limited sliding plate 505 provides an installation position. The external sliding connection of the limited sliding plate 505 has a driving The outer sleeve 506 is provided with a second tension spring 507 inside the driving outer sleeve 506. The second tension spring 507 can use its own reaction force to pull the driving outer sleeve 506 to reset. The driving outer sleeve 506 is fixedly connected to a bending card plate 508 on one side close to the protective cleaning mechanism 2. The laser rangefinder 1 is fixedly connected to locking plates 509 on both sides. One end of the second tension spring 507 is fixedly connected to one side of the limiting sliding plate 505 close to the bending card plate 508. The other end of the second tension spring 507 is fixedly connected to the inside of the driving outer sleeve 506. The locking plate 509 is provided with a snap-fit ​​groove 510 inside. The card plate 508 is slidably connected to the inside of the through groove 502, and the bent card plate 508 is engaged with the engaging groove 510. The bent card plate 508 can be engaged with the engaging groove 510 through the through groove 502, thereby preventing the installation frame 401 from being separated from the outside of the laser rangefinder 1. When the stable anti-deflection mechanism 4 is installed, the outer sleeve 506 will be driven to slide toward the side close to the protective hoop 201, and then the bent card plate 508 can be driven to move in the direction close to the protective hoop 201. At this time, the tension spring 507 can be stretched, and then the card slot 501 is aligned with the outer side of the locking plate 509. The mounting frame 401 is pushed into the outside of the laser rangefinder 1 to complete the card slot of the mounting frame 401 on the outside of the laser rangefinder 1. At this time, the locking plate 509 completely slides into the inside of the card slot 501, and the through slot 502 is aligned with the engaging slot 510, which drives the outer sleeve 506 to loosen. At this time, under the tension of the tension spring 507, the outer sleeve 506 can be driven to move away from the protective hoop 201, and then the bent card plate 508 can be penetrated through the through slot 502 and engaged in the engaging slot 510, thereby preventing the mounting frame 401 from being separated from the outside of the laser rangefinder 1.

[0037] Working principle: When using the laser rangefinder 1, the protective hoop 201 is rotated upward. At this time, the engaging head 209 moves toward the inside of the fixed cylinder 206 under the pressure of the inner wall of the engaging hole 210, and then can drive the limit plate 208 to move toward the inside of the fixed cylinder 206. When the protective hoop 201 is rotated perpendicular to the laser rangefinder 1, the limit plate 208 can push the limit plate 208 to move outward under the action of the return spring 207, and then can drive the engaging head 209 to move outward. When the laser rangefinder 1 is not in use, the protective hoop 201 is first rotated downward. When the engaging head 209 contacts the outer wall of the laser rangefinder 1, the engaging head 209 is driven to move toward the inside of the fixed cylinder 206 under the pressure of the outer wall, thereby driving the limit plate 208 to the fixed cylinder 206. The fixed cylinder 206 moves internally, and then the limit plate 208 can be used to squeeze the return spring 207. When the engaging head 209 moves to the position of the engaging hole 210, the limit plate 208 is pushed to move outward under the reaction of the return spring 207, thereby driving the limit plate 208 to move outward, and then driving the engaging head 209 to move in the direction away from the return spring 207, so that the engaging head 209 and the engaging hole 210 are engaged, and then the protective hoop 201 can be stabilized. When the protective hoop 201 rotates up and down, it can drive the installation box 202 to move up and down, so that the transmitting head of the laser rangefinder 1 can be cleaned by the cleaning brush 205, and the cleaning brush 205 can be tightly pressed against the transmitting head of the laser rangefinder 1 by the pressing spring 203;

[0038] When the protective hoop 201 rotates upward, the inner rod 303 is pulled away from the rotating cylinder 301, and then the tension spring 1 304 is stretched. When the protective hoop 201 moves to the upper side of the laser rangefinder 1, the inner rod 303 moves toward the inside of the rotating cylinder 301 under the action of the tension spring 1 304, and then the protective hoop 201 can be pulled by the tension spring 1 304, so that the protective hoop 201 will not rotate downward when the laser rangefinder 1 is in use;

[0039] When using the laser rangefinder 1, the mounting frame 401 is clamped on the outside of the laser rangefinder 1. At this time, the clamping stabilizing plate 405 is pulled to both sides, so that the sliding block 404 can be driven to move to both sides inside the sliding groove 403, and then the clamping tension spring 407 can be stretched. At this time, the linear track 6 is placed between the two clamping stabilizing plates 405, the clamping stabilizing plates 405 are loosened, and the sliding block 404 is pulled to move to the middle under the action of the clamping tension spring 407, and then the clamping stabilizing plates 405 can be used to clamp the two ends of the linear track 6, so as to prevent the laser rangefinder 1 from sliding off the linear track 6, and also prevent the laser rangefinder 1 from tilting and deviating, and then prevent the measurement result from having a large deviation;

[0040] When installing the stable anti-deflection mechanism 4, the outer sleeve 506 will be driven to slide toward the side close to the protective hoop 201, and then the bent card plate 508 can be driven to move in the direction close to the protective hoop 201. At this time, the tension spring 2 507 can be lengthened, and then the card slot 501 is aligned with the outside of the locking plate 509, and the installation frame 401 is pushed into the outside of the laser rangefinder 1, and the installation frame 401 is stuck on the outside of the laser rangefinder 1. At this time, the locking plate 509 completely slides into the inside of the card slot 501, and the through slot 502 is aligned with the engaging slot 510, which will drive the outer sleeve 506 to loosen. At this time, under the tension of the tension spring 2 507, the outer sleeve 506 can be driven to move in the direction away from the protective hoop 201, and then the bent card plate 508 can be penetrated through the through slot 502 and engaged in the inside of the engaging slot 510, and then the installation frame 401 can be prevented from detaching from the outside of the laser rangefinder 1.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A linear guide rail hole distance measuring device, comprising a laser rangefinder (1), characterized in that: The laser rangefinder (1) is rotatably connected to a protective cleaning mechanism (2) on the outside, and the protective cleaning mechanism (2) is used to protect and clean a laser emission head. Positioning mechanisms (3) are rotatably connected to both sides of the laser rangefinder (1), and the positioning mechanisms (3) are used to position the protective cleaning mechanism (2). A stabilizing anti-deflection mechanism (4) is provided on the side of the outside of the laser rangefinder (1) away from the protective cleaning mechanism (2). A locking mechanism (5) is provided on the outside of the stabilizing anti-deflection mechanism (4), and the locking mechanism (5) can stably install the stabilizing anti-deflection mechanism (4) on the outside of the laser rangefinder (1). A linear track (6) is provided at the bottom of the laser rangefinder (1), and the stabilizing anti-deflection mechanism (4) is used to stabilize the laser rangefinder (1) on the top of the linear track (6) and prevent the laser rangefinder (1) from deflecting.

2. A linear guide rail hole distance measuring device according to claim 1, characterized in that: The protective cleaning mechanism (2) comprises a protective hoop (201), a side of the protective hoop (201) away from the laser rangefinder (1) is fixedly connected to a mounting box (202), a pressing spring (203) is arranged inside the mounting box (202), a limiting plate (204) is slidably connected inside the mounting box (202), a side of the limiting plate (204) away from the pressing spring (203) is fixedly connected to a cleaning brush (205), and the interior of the protective hoop (201) is located in the mounting box (202). ) are fixedly connected to fixed cylinders (206) on both sides, a return spring (207) is arranged inside the fixed cylinder (206), a limit plate (208) is slidably connected inside the fixed cylinder (206), a locking head (209) is fixedly connected to the side of the limit plate (208) away from the return spring (207), and two locking holes (210) are provided on the side of the laser rangefinder (1) close to the protective hoop (201), and the locking head (209) is locked with the locking holes (210).

3. A linear guide rail hole distance measuring device according to claim 1, characterized in that: The positioning mechanism (3) comprises a rotating cylinder (301), wherein a side of the rotating cylinder (301) away from the protective hoop (201) is rotatably connected to the outside of the laser rangefinder (1), a fiber ring (302) is slidably connected inside the rotating cylinder (301), a side of the fiber ring (302) close to the protective hoop (201) is fixedly connected to an inner rod (303), a tension spring (304) is fixedly connected between the inside of the inner rod (303) and the inside of the rotating cylinder (301), and an end of the inner rod (303) away from the rotating cylinder (301) is fixedly connected to the outside of the protective hoop (201).

4. A linear guide rail hole distance measuring device according to claim 1, characterized in that: The stabilizing anti-deflection mechanism (4) comprises a mounting frame (401), the interior of the mounting frame (401) being clamped on a side of the exterior of the laser rangefinder (1) away from the protective cleaning mechanism (2), the bottom of the mounting frame (401) being fixedly connected to a mounting base plate (402), the bottom end of the mounting base plate (402) being provided with a sliding groove (403), the interior of the sliding groove (403) being slidably connected to two sliding blocks (404), the bottom of the sliding block (404) being fixedly connected to a clamping stabilizing plate (405), and a plurality of clamping tension springs (407) being fixedly connected between the two sliding blocks (404).

5. A linear guide rail hole distance measuring device according to claim 4, characterized in that: The locking mechanism (5) comprises two card slots (501), the two card slots (501) are respectively arranged on both sides of the interior of the installation frame (401), through slots (502) are arranged inside the two sides of the installation frame (401), both sides of the installation frame (401) are fixedly connected with fixed plates (503), the side of the fixed plate (503) close to the protection and cleaning mechanism (2) is fixedly connected with a sliding plate (504), the side of the sliding plate (504) close to the protection and cleaning mechanism (2) is fixedly connected with a limited sliding plate (505), the outside of the limited sliding plate (505) is slidably connected with a driving jacket (506), the inside of the driving jacket (506) is provided with a second tension spring (507), the side of the driving jacket (506) close to the protection and cleaning mechanism (2) is fixedly connected with a bent card plate (508), and the two sides of the laser rangefinder (1) are fixedly connected with locking plates (509).

6. A linear guide rail hole distance measuring device according to claim 2, characterized in that: One end of the return spring (207) is fixedly connected to the interior of the fixed cylinder (206), and the other end of the return spring (207) is fixedly connected to a side of the limit plate (208) away from the engaging head (209).

7. A linear guide rail hole distance measuring device according to claim 2, characterized in that: One end of the holding spring (203) is fixedly connected to the inside of the installation box (202), and the other end of the holding spring (203) is fixedly connected to a side of the limiting plate (204) away from the cleaning brush (205).

8. A linear guide rail hole distance measuring device according to claim 4, characterized in that: The clamping stabilizing plate (405) is slidably connected to the inner side of the bottom end of the sliding groove (403), and the inner side of the clamping stabilizing plate (405) is rotatably connected to a rotating roller (406).

9. A linear guide rail hole distance measuring device according to claim 5, characterized in that: One end of the second tension spring (507) is fixedly connected to a side of the limiting sliding plate (505) close to the bending clamping plate (508), and the other end of the second tension spring (507) is fixedly connected to the inside of the driving sleeve (506).

10. A linear guide rail hole distance measuring device according to claim 5, characterized in that: The locking plate (509) is provided with a snap-fitting groove (510) inside, the bent snap-fitting plate (508) is slidably connected inside the through groove (502), and the bent snap-fitting plate (508) is snap-fitted with the snap-fitting groove (510).

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