Escalator inspection and detection device and use method thereof

Abstract

The invention belongs to the technical field of laser rulers, and particularly discloses an escalator inspection and detection device and a using method thereof.The escalator inspection and detection device comprises a laser ruler body, a laser head is arranged at the top end of the laser ruler body, a display screen is arranged on the front side face of the laser ruler body, and a plurality of laser buttons are arranged at the bottom of the display screen; a control chip is arranged in the laser ruler body, and the laser head, the display screen and the laser button are all electrically connected with the control chip. The movable plate is pushed to move until the bottom face of the movable plate is flush with the bottom face of the rotating plate, the elastic force of the elastic piece enables static friction force between the pressing rod and the side frame to limit the rotating frame in a matched mode, limiting of the rotating frame is completed, and the angle between the bottom face of the rotating frame and the top face of the laser ruler body is adjusted in real time according to the inclination angle of the escalator. The escalator does not need to be stopped, and the laser ruler body can conveniently detect escalators with different inclination angles in real time.

Description

Technical Field

[0001] The invention belongs to the technical field of laser rulers, and in particular relates to an escalator inspection and detection device and a use method thereof. Background Art

[0002] An escalator is a fixed electric drive device composed of a special structural chain conveyor and two special structural belt conveyors with a circular moving ladder path, used to transport passengers upward or downward between different floors of a building. It is a continuous conveying machine for carrying people up and down. When using a laser ruler to detect the length of an escalator, it is necessary to stop the escalator first, then place the laser ruler on the top surface of the handrail of the escalator, and detect the length of the escalator through the laser head. It is easy to cause congestion during the detection process, and too much congestion will affect the detection of the escalator.

[0003] Therefore, it is necessary to invent an escalator inspection and detection device and a method of using the same to solve the above problems. Summary of the invention

[0004] In view of the above problems, the present invention provides an escalator inspection and detection device and a method of using the same to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an escalator inspection and detection device, comprising a laser ruler body, a laser head is arranged at the top of the laser ruler body, a display screen is arranged at the front side of the laser ruler body, a plurality of laser buttons are arranged at the bottom of the display screen, a control chip is arranged inside the laser ruler body, and the laser head, the display screen and the laser buttons are all electrically connected to the control chip, a placement groove is arranged at the bottom of the rear side of the laser ruler body, a rotating frame is arranged inside the placement groove, the rotating frame comprises two opposite side frames, the bottom of the two side frames are fixedly connected by a bottom rod, the top of the two side frames are fixedly connected by a top plate, the bottom surface of the top plate is connected to the top surface of the bottom rod by a support rod, a screw sleeve is arranged between the two side frames, square and round rods are spirally sleeved at both ends of the screw sleeve, the threads on the surfaces of the two opposite square and round rods are in opposite directions, the two square and round rods correspond to the two side frames one by one, the square and round rods pass through the bottom ends of the side frames correspondingly, and the bottom ends of the side frames are provided with square and round grooves corresponding to the square and round rods, the bottoms of the two side walls of the placement groove are provided with slots, and the rotating frame rotates inside the slots by the square and round rods.

[0006] Furthermore, a transverse groove is provided at the center of the side frame, a slider is provided on the outer side of the side frame, side grooves corresponding to the slider are provided on both sides of the placement groove, an inner rod is embedded in the side groove, the slider is slidably sleeved on the surface of the inner rod, a spring is sleeved on the surface of the inner rod, one end of the spring is connected to the slider, and the other end of the spring is connected to the bottom end of the inner side of the side groove.

[0007] Furthermore, a side rod corresponding to the transverse groove is fixed to the inner end of the slider, and two opposite insertion racks are arranged between the two side frames, and the two insertion racks correspond to the two sliders one by one. Insertion rods corresponding to the side rods are fixed to the outer side surfaces of the insertion racks, and the insertion rods are movably inserted in the transverse grooves, and the outer end surfaces of the insertion rods are flush with the outer side surfaces of the side frames. A convex rod is fixed to the outer end surfaces of the insertion rods, and a groove corresponding to the convex rod is arranged at the inner end of the side rods.

[0008] Furthermore, a movable plate is provided between the two opposite plug-in racks, and the movable plate is movably sleeved on the surface of the support rod. Both ends of the movable plate are hinged to the inner end of the rotating plate. A bottom groove corresponding to the rotating plate is provided on the bottom surface of the plug-in rack, and a limiting rod is fixed inside the bottom groove. The outer end of the rotating plate is hinged to the surface of the limiting rod.

[0009] Furthermore, sliding grooves are provided on both sides of the rack, and the limiting rod corresponds to the two sliding grooves that pass through the rack. Plates are fixed at both ends of the limiting rod, a pressure rod is provided inside the plate, the outer end of the pressure rod is located on the outer side of the plate, an inner groove corresponding to the pressure rod is provided inside the plate, sliding rods are fixed on both sides of the inner groove, convex plates corresponding to the sliding rods are fixed on both sides of the inner end of the pressure rod, and the inner end face of the pressure rod is connected to the inner end face of the inner groove by a spring sheet.

[0010] Furthermore, side plates are fixed on both sides of the outer circumferential side surface of the limiting rod, and the side plates are located inside the sliding groove. The movable limiting rod slides inside the sliding groove using the side plates.

[0011] Furthermore, when the bottom surface of the movable plate is flush with the bottom surface of the rotating plate, the elastic force of the spring sheet causes the outer end surface of the pressure rod to fit with the inner side surface of the side frame.

[0012] The present invention also provides a method for using the above-mentioned escalator inspection and detection device, comprising the following steps:

[0013] S1, rotating the rotating frame, the rotating frame rotates inside the slot with the square rod as the center, the top of the rotating frame gradually rotates out of the placement slot, the insertion frame uses the protruding rod at the outer end of the insertion rod to fit into the groove at the inner end of the side rod, the slider uses the side rod and the insertion rod to limit the insertion frame, and at this time the insertion frame uses the insertion rod to move down inside the horizontal slot of the side frame;

[0014] S2, the downwardly moving inserting frame uses the convex rod and the groove to make the slider move downward inside the side groove, the downwardly moving slider cooperates with the spring that squeezes the surface of the inner rod, and the moving inserting frame uses the rotating plate to drive the movable plate to move synchronously, and at this time the movable plate moves downward on the surface of the support rod;

[0015] S3. During the rotating frame, the laser ruler body is set parallel to the handrail of the escalator until the rear side of the rotating frame is in contact with the ground, pushing the movable plate to move up on the surface of the support rod. The upward moving plate pushes the inner end of the rotating plate to move up. The rotating plate rotates under the push of the movable plate. The outer end of the rotating rotating plate pushes the limiting rod to move outward inside the plug-in frame, and the limiting rod drives the contact plate to approach the side frame.

[0016] S4, when the moving contact plate makes the outer end of the pressure rod contact the inner side of the side frame, the movable plate continues to be pushed upward, and the reaction force of the side frame on the pressure rod cooperates to squeeze the spring sheet until the bottom surface of the movable plate is flush with the bottom surface of the rotating plate. The elastic force of the spring sheet makes the outer end of the pressure rod tightly press the inner side of the side frame, and the static friction between the pressure rod and the side frame cooperates to limit the rotating frame;

[0017] S5. Place a baffle on the top of the escalator. The baffle corresponds to the laser head of the laser ruler body. Press the laser button and the laser head will emit laser to the baffle. At this time, the length of the escalator is displayed on the display.

[0018] Technical effects and advantages of the present invention:

[0019] 1. The present invention pushes the movable plate to move until the bottom surface of the movable plate is flush with the bottom surface of the rotating plate. The elastic force of the spring sheet enables the static friction between the pressure rod and the side frame to cooperate to limit the rotating frame, thereby completing the limitation of the rotating frame. The angle between the bottom surface of the rotating frame and the top surface of the laser ruler body is adjusted in real time according to the inclination angle of the escalator. There is no need to stop the escalator, which facilitates the laser ruler body to detect escalators with different inclination angles in real time.

[0020] 2. The present invention releases the tension applied to the rotating frame, and the elastic force of the spring pushes the slider upward. The upward slider drives the rotating frame to rotate in the opposite direction by using the side rod and the insertion rod until the slider is at the top of the inner side of the side groove. The elastic force of the spring uses the side rod and the insertion rod on the inner side of the slider to confine the rotating frame inside the placement groove, thereby preventing the rotating frame from rotating at will.

[0021] 3. When the present invention uses the limiting rod to push the sticking plate to move through the rotating rotating plate, the slide slot itself uses the side plate to limit the limiting rod to prevent the limiting rod from rotating inside the slide slot, so that the pressure rod at the outer end of the sticking plate always corresponds to the side frame, avoiding the inclination of the pressure rod and making it impossible to limit the rotating frame in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 1 is a schematic diagram of the entire laser ruler body according to an embodiment of the present invention;

[0023] Figure 2 Schematic diagram of the internal components of the placement slot on the rear side of the laser ruler body according to an embodiment of the present invention;

[0024] Figure 3 The embodiment of the present invention Figure 2A magnified view of the structure of part A;

[0025] Figure 4 is an overall schematic diagram of a rotating frame according to an embodiment of the present invention;

[0026] Figure 5 is a schematic diagram of the internal components of the side trough according to an embodiment of the present invention;

[0027] Figure 6 2 is a schematic diagram of the plug-in rack according to an embodiment of the present invention using a plug-in rod corresponding to a side rod at the inner end of a slider;

[0028] Figure 7 is an overall schematic diagram of the plug-in of an embodiment of the present invention;

[0029] In the figure: 1. Laser ruler body; 2. Laser head; 3. Display screen; 4. Laser button; 5. Placement slot; 6. Side frame; 7. Bottom rod; 8. Top plate; 9. Support rod; 10. Screw sleeve; 11. Square rod; 12. Horizontal groove; 13. Sliding block; 14. Inner rod; 15. Spring; 16. Side rod; 17. Insertion frame; 18. Insertion rod; 19. Protruding rod; 20. Movable plate; 21. Rotating plate; 22. Limiting rod; 23. Slide groove; 24. Paste plate; 25. Pressure rod; 26. Sliding rod; 27. Shrapnel; 28. Side plate. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0031] The present invention provides an escalator inspection and detection device, such as Figures 1 to 4As shown, it includes a laser ruler body 1, a laser head 2 is arranged at the top of the laser ruler body 1, and a display screen 3 is arranged on the front side of the laser ruler body 1, and a plurality of laser buttons 4 are arranged at the bottom of the display screen 3. A control chip is arranged inside the laser ruler body 1, and the laser head 2, the display screen 3 and the laser buttons 4 are all electrically connected to the control chip. A placement groove 5 is arranged at the bottom of the rear side of the laser ruler body 1, and a rotating frame is arranged inside the placement groove 5. The rotating frame includes two opposite side frames 6. The bottom of the two side frames 6 is fixedly connected by a bottom rod 7. The top ends of the side frames 6 are fixedly connected by a top plate 8, and the bottom surface of the top plate 8 is connected to the top surface of the bottom rod 7 by a support rod 9. A screw sleeve 10 is provided between the two side frames 6, and both ends of the screw sleeve 10 are spirally sleeved with a square rod 11. The threads on the surfaces of the two opposite square rods 11 are in opposite directions. The two square rods 11 correspond to the two side frames 6 one by one. The square rods 11 pass through the bottom ends of the side frames 6, and the bottom ends of the side frames 6 are provided with square grooves corresponding to the square rods 11. The bottoms of the two side walls of the placement groove 5 are provided with slots, and the rotating frame rotates inside the slots by using the square rods 11. The rotating frame is placed inside the placement groove 5 so that the outer ends of the square rods 11 correspond to the slots, and the screw sleeve 10 is rotated. Since the bottom ends of the side frames 6 limit the square rods 11 through the square grooves, the square rods 11 are prevented from rotating with the screw sleeve 10. The spiral cooperation between the rotating screw sleeve 10 and the square rod 11 allows the square rod 11 to rotate inside the square groove. The threads on the surfaces of the two opposite square rods 11 are in opposite directions. The rotating screw sleeve 10 causes the two opposite square rods 11 to move away from each other until the outer ends of the square rods 11 are inserted into the slot. The spiral cooperation between the screw sleeve 10 and the square rod 11 is used to rotate the rotating frame and clamp it inside the placement groove 5.

[0032] Rotate the turret so that it rotates inside the placement slot 5 with the square rod 11 as the center. The rotating turret gradually moves out of the placement slot 5. As the turret rotates, the angle formed between the bottom surface of the turret and the top surface of the laser ruler body 1 gradually increases. Place the laser ruler body 1 parallel to the handrail of the escalator until the rear side of the rotating turret is in contact with the ground. Use the turret to support the laser ruler body 1, place a baffle on the top of the escalator, the baffle corresponds to the laser head 2 of the laser ruler body 1, press the laser button 4, and the laser head 2 emits laser to the baffle. At this time, the length of the escalator is displayed on the display screen 3.

[0033] By rotating the turntable, the angle between the bottom surface of the turntable and the top surface of the laser ruler body 1 can be adjusted in real time, so that the laser ruler body 1 can correspond to escalators with different inclination angles without shutting down the escalator, and the laser ruler body 1 can detect the length of the escalator in real time, thus ensuring the speed of detection.

[0034] exist Figure 2 and Figure 5In the embodiment, a transverse groove 12 is provided at the center of the side frame 6, a slider 13 is provided on the outer side of the side frame 6, and side grooves corresponding to the slider 13 are provided on both sides of the placement groove 5. An inner rod 14 is embedded in the inner side groove, and the slider 13 is slidably sleeved on the surface of the inner rod 14. A spring 15 is sleeved on the surface of the inner rod 14, one end of the spring 15 is connected to the slider 13, and the other end of the spring 15 is connected to the bottom end of the inner side of the side groove. When the slider 13 is pushed to move downward inside the side groove, the downwardly moving slider 13 cooperates with the spring 15 that squeezes the surface of the inner rod 14. After the restriction on the slider 13 is released, the elastic force of the spring 15 pushes the slider 13 to move upward on the surface of the inner rod 14 until the top surface of the slider 13 fits with the inner top surface of the side groove, and at this time, the spring 15 is in a compressed state.

[0035] exist Figure 2 , Figures 5 to 7 In the embodiment, the inner end of the slider 13 is fixed with a side rod 16 corresponding to the transverse groove 12, and two opposite plug-in racks 17 are arranged between the two side frames 6. The two plug-in racks 17 correspond to the two sliders 13 one by one. The outer side of the plug-in rack 17 is fixed with a plug-in rod 18 corresponding to the side rod 16. The plug-in rod 18 is movably inserted into the transverse groove 12, and the outer end surface of the plug-in rod 18 is flush with the outer side surface of the side frame 6. The outer end surface of the plug-in rod 18 is fixed with a protruding rod 19, and the inner end of the side rod 16 is provided with a groove corresponding to the protruding rod 19. After the rotating frame is placed in the placement groove 5, the outer end of the plug-in rack 17 passes through the transverse groove 12 of the side frame 6 by means of the plug-in rod 18 until the protruding rod 19 at the outer end of the plug-in rod 18 is correspondingly inserted into the groove at the inner end of the side rod 16. Since the protruding rod 19 is a square rod, and the side groove and the inner rod 14 cooperate to limit the slider 13, the slider 13 is prevented from rotating inside the side groove.

[0036] When the rotating frame is rotated, since the slider 13 uses the side rod 16 to limit the insertion rod 18 and the insertion frame 17, the rotating rotating frame allows the insertion frame 17 to move downward inside the transverse groove 12 of the side frame 6 using the insertion rod 18, and the downwardly moved insertion frame 17 uses the protruding rod 19 and the groove to cooperate to make the slider 13 move downward inside the side groove, and the downwardly moved slider 13 cooperates with the spring 15 on the surface of the inner rod 14 to squeeze; the tension applied to the rotating frame is released, and the elastic force of the spring 15 pushes the slider 13 to move upward, and the upwardly moved slider 13 uses the side rod 16 and the insertion rod 18 to drive the rotating frame to rotate in the opposite direction, until the slider 13 is at the top of the inner side of the side groove, the elastic force of the spring 15 uses the side rod 16 and the insertion rod 18 inside the slider 13 to limit the rotating frame inside the placement groove 5, thereby preventing the rotating frame from rotating at will.

[0037] exist Figures 2 to 7In the embodiment, a movable plate 20 is arranged between two opposite plug-in frames 17, and the movable plate 20 is movably sleeved on the surface of the support rod 9, and both ends of the movable plate 20 are hinged to the inner end of the rotating plate 21, and the bottom surface of the plug-in frame 17 is provided with a bottom groove corresponding to the rotating plate 21, and a limiting rod 22 is fixed inside the bottom groove, and the outer end of the rotating plate 21 is hinged to the surface of the limiting rod 22. Slide grooves 23 are arranged on both sides of the plug-in frame 17, and the limiting rod 22 corresponds to the two slide grooves 23 that penetrate the plug-in frame 17, and both ends of the limiting rod 22 are fixed with a pasting plate 24, and a pressure rod 25 is arranged inside the pasting plate 24, and the outer end of the pressure rod 25 is located at the outer part of the pasting plate 24, and an inner groove corresponding to the pressure rod 25 is arranged inside the pasting plate 24, and a sliding rod 26 is fixed on both sides of the inner groove, and a convex plate corresponding to the sliding rod 26 is fixed on both sides of the inner end of the pressure rod 25, and the inner end surface of the pressure rod 25 is connected to the inner end surface of the inner groove by a spring sheet 27. When the rotating turret uses the insertion rod 18 to move the insertion rack 17 downward inside the placement groove 5, the movable insertion rack 17 uses the rotating plate 21 to drive the movable plate 20 to move synchronously. At this time, the movable plate 20 moves downward on the surface of the support rod 9. In the process of rotating the turret, the laser ruler body 1 is set parallel to the handrail of the escalator until the rear side of the turret is in contact with the ground.

[0038] When the bottom surface of the movable plate 20 is flush with the bottom surface of the rotating plate 21, the elastic force of the spring sheet 27 makes the outer end surface of the pressing rod 25 fit with the inner surface of the side frame 6. The movable plate 20 is pushed up on the surface of the support rod 9, and the upward movable plate 20 pushes the inner end of the rotating plate 21 to move up. The rotating plate 21 rotates under the push of the movable plate 20, and the outer end of the rotating rotating plate 21 pushes the limiting rod 22 to move outward inside the insertion frame 17, and the limiting rod 22 drives the sticking plate 24 to approach the side frame 6. When the moving sticking plate 24 makes the outer end of the pressure rod 25 fit against the inner side of the side frame 6, the movable plate 20 continues to be pushed upward, and the reaction force of the side frame 6 on the pressure rod 25 cooperates to squeeze the spring sheet 27 until the bottom surface of the movable plate 20 is flush with the bottom surface of the rotating plate 21. The elastic force of the spring sheet 27 makes the outer end of the pressure rod 25 tightly squeeze the inner side surface of the side frame 6, and the static friction force between the pressure rod 25 and the side frame 6 cooperates to limit the rotating frame, thereby completing the limitation of the rotating frame. According to the inclination angle of the escalator, the angle between the bottom surface of the rotating frame and the top surface of the laser ruler body 1 is adjusted in real time, so that the laser ruler body 1 can detect escalators with different inclination angles in real time.

[0039] exist Figure 6 and Figure 7 In the embodiment, the side plates 28 are fixed on both sides of the outer side of the circumference of the limiting rod 22, and the side plates 28 are located inside the slide groove 23. The movable limiting rod 22 slides inside the slide groove 23 using the side plates 28. When the rotating rotating plate 21 pushes the sticking plate 24 to move using the limiting rod 22, the slide groove 23 itself uses the side plates 28 to limit the limiting rod 22, so that the limiting rod 22 is prevented from rotating inside the slide groove 23, so that the pressure rod 25 at the outer end of the sticking plate 24 always corresponds to the side frame 6, so as to prevent the pressure rod 25 from tilting and causing the rotating frame to be unable to be limited in real time.

[0040] The present invention also provides a method for using the above-mentioned escalator inspection and detection device, referring to Figures 1 to 7 As shown, the following steps are included:

[0041] S1, rotate the rotating frame, the rotating frame rotates inside the slot with the square rod 11 as the center, the top of the rotating frame gradually rotates out from the inside of the placement slot 5, the inserting frame 17 uses the protruding rod 19 at the outer end of the inserting rod 18 to be inserted into the groove at the inner end of the side rod 16, the slider 13 uses the side rod 16 and the inserting rod 18 to limit the inserting frame 17, and at this time the inserting frame 17 uses the inserting rod 18 to move down inside the transverse slot 12 of the side frame 6;

[0042] S2, the downwardly moving inserting frame 17 uses the convex rod 19 and the groove to make the slider 13 move downward inside the side groove, the downwardly moving slider 13 cooperates with the spring 15 that squeezes the surface of the inner rod 14, and the moving inserting frame 17 uses the rotating plate 21 to drive the movable plate 20 to move synchronously, and at this time the movable plate 20 moves downward on the surface of the support rod 9;

[0043] S3. During the rotating frame, the laser ruler body 1 is arranged parallel to the handrail of the escalator until the rear side of the rotating frame is in contact with the ground, pushing the movable plate 20 to move up on the surface of the support rod 9. The upwardly moving movable plate 20 pushes the inner end of the rotating plate 21 to move up. The rotating plate 21 rotates under the push of the movable plate 20. The outer end of the rotating rotating plate 21 pushes the limiting rod 22 to move outward inside the plug-in frame 17. The limiting rod 22 drives the sticking plate 24 to approach the side frame 6.

[0044] S4, when the moving contact plate 24 makes the outer end of the pressure rod 25 contact the inner side of the side frame 6, the movable plate 20 continues to move upward, and the reaction force of the side frame 6 on the pressure rod 25 cooperates to squeeze the spring sheet 27 until the bottom surface of the movable plate 20 is flush with the bottom surface of the rotating plate 21. The elastic force of the spring sheet 27 makes the outer end of the pressure rod 25 tightly press the inner side of the side frame 6, and the static friction between the pressure rod 25 and the side frame 6 cooperates to limit the rotating frame;

[0045] S5. Place a baffle on the top of the escalator. The baffle corresponds to the laser head 2 of the laser ruler body 1. Press the laser button 4. The laser head 2 emits laser to the baffle. At this time, the length of the escalator is displayed on the display screen 3.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. An escalator inspection and detection device, comprising a laser ruler body (1), a laser head (2) is arranged at the top of the laser ruler body (1), a display screen (3) is arranged on the front side of the laser ruler body (1), a plurality of laser buttons (4) are arranged at the bottom of the display screen (3), a control chip is arranged inside the laser ruler body (1), and the laser head (2), the display screen (3) and the laser buttons (4) are all electrically connected to the control chip, characterized in that: A placement groove (5) is provided at the bottom of the rear side of the laser ruler body (1), and a rotating frame is provided inside the placement groove (5). The rotating frame comprises two opposite side frames (6). The bottoms of the two side frames (6) are fixedly connected by a bottom rod (7), and the tops of the two side frames (6) are fixedly connected by a top plate (8). The bottom surface of the top plate (8) is connected to the top surface of the bottom rod (7) by a support rod (9). A screw sleeve (10) is provided between the two side frames (6). Square rods (11) are screwed on both ends of the screw sleeve (10). The threads on the surfaces of the two opposite square rods (11) are in opposite directions. The two square rods (11) correspond to the two side frames (6) one by one. The square rods (11) pass through the bottom ends of the side frames (6) respectively, and the bottom ends of the side frames (6) are provided with square grooves corresponding to the square rods (11). The bottoms of the two side walls of the placement groove (5) are provided with slots, and the rotating frame rotates inside the slots by using the square rods (11).

2. The escalator inspection and detection device according to claim 1 is characterized in that: A transverse groove (12) is provided at the center of the side frame (6), a slider (13) is provided on the outer side of the side frame (6), side grooves corresponding to the slider (13) are provided on both sides of the placement groove (5), an inner rod (14) is embedded in the side groove, the slider (13) is slidably sleeved on the surface of the inner rod (14), a spring (15) is sleeved on the surface of the inner rod (14), one end of the spring (15) is connected to the slider (13), and the other end of the spring (15) is connected to the inner bottom end of the side groove.

3. The escalator inspection and detection device according to claim 2 is characterized in that: A side rod (16) corresponding to the transverse groove (12) is fixed to the inner end of the slider (13); two opposite insertion racks (17) are arranged between the two side frames (6); the two insertion racks (17) correspond to the two sliders (13) one by one; an insertion rod (18) corresponding to the side rod (16) is fixed to the outer side of the insertion rack (17); the insertion rod (18) is movably inserted into the inside of the transverse groove (12), and the outer end surface of the insertion rod (18) is flush with the outer side surface of the side frame (6); a convex rod (19) is fixed to the outer end surface of the insertion rod (18); and a groove corresponding to the convex rod (19) is arranged at the inner end of the side rod (16).

4. The escalator inspection and detection device according to claim 3 is characterized in that: A movable plate (20) is arranged between the two opposite insertion racks (17), the movable plate (20) is movably sleeved on the surface of the support rod (9), both ends of the movable plate (20) are hinged to the inner end of the rotating plate (21), the bottom surface of the insertion rack (17) is provided with a bottom groove corresponding to the rotating plate (21), a limiting rod (22) is fixed inside the bottom groove, and the outer end of the rotating plate (21) is hinged to the surface of the limiting rod (22).

5. The escalator inspection and detection device according to claim 4 is characterized in that: The inserting frame (17) is provided with sliding grooves (23) on both sides, and the limiting rod (22) corresponds to the two sliding grooves (23) penetrating the inserting frame (17). Both ends of the limiting rod (22) are fixed with a plate (24), and a pressure rod (25) is arranged inside the plate (24). The outer end of the pressure rod (25) is located at the outer side of the plate (24), and an inner groove corresponding to the pressure rod (25) is arranged inside the plate (24). Slide rods (26) are fixed on both sides of the inner groove, and convex plates corresponding to the slide rod (26) are fixed on both sides of the inner end of the pressure rod (25). The inner end surface of the pressure rod (25) is connected to the inner end surface of the inner groove by means of a spring sheet (27).

6. The escalator inspection and detection device according to claim 5, characterized in that: Side plates (28) are fixed on both sides of the outer circumferential side surface of the limiting rod (22), and the side plates (28) are located inside the sliding groove (23). The movable limiting rod (22) slides inside the sliding groove (23) by means of the side plates (28).

7. The escalator inspection and detection device according to claim 5, characterized in that: When the bottom surface of the movable plate (20) is flush with the bottom surface of the rotating plate (21), the elastic force of the spring sheet (27) causes the outer end surface of the pressure rod (25) to fit with the inner side surface of the side frame (6).

8. A method for using the escalator inspection and detection device according to claim 6, characterized in that: The following steps are involved: S1, rotating the rotating frame, the rotating frame rotates inside the slot with the square rod (11) as the center of the circle, the top of the rotating frame gradually rotates out from the inside of the placement slot (5), the inserting frame (17) uses the protruding rod (19) at the outer end of the inserting rod (18) to be inserted into the groove inside the inner end of the side rod (16), the slider (13) uses the side rod (16) and the inserting rod (18) to limit the inserting frame (17), at this time, the inserting frame (17) uses the inserting rod (18) to move down inside the transverse slot (12) of the side frame (6); S2, the downwardly moving inserting frame (17) uses the convex rod (19) and the groove to make the slider (13) move downward inside the side groove, the downwardly moving slider (13) cooperates with the spring (15) on the surface of the inner rod (14) to squeeze, and the moving inserting frame (17) uses the rotating plate (21) to drive the movable plate (20) to move synchronously, and at this time, the movable plate (20) moves downward on the surface of the support rod (9); S3. During the process of rotating the rotating frame, the laser ruler body (1) is arranged parallel to the handrail of the escalator until the rear side of the rotating frame is in contact with the ground, pushing the movable plate (20) to move up on the surface of the support rod (9), and the moving movable plate (20) pushes the inner end of the rotating plate (21) to move up. The rotating plate (21) rotates under the push of the movable plate (20), and the outer end of the rotating rotating plate (21) pushes the limiting rod (22) to move outward inside the plug-in frame (17), and the limiting rod (22) drives the contact plate (24) to approach the side frame (6); S4, when the moving contact plate (24) makes the outer end of the pressure rod (25) contact the inner side of the side frame (6), the movable plate (20) continues to move upward, and the reaction force of the side frame (6) on the pressure rod (25) cooperates to squeeze the spring sheet (27) until the bottom surface of the movable plate (20) is flush with the bottom surface of the rotating plate (21), and the elastic force of the spring sheet (27) makes the outer end of the pressure rod (25) tightly press the inner side of the side frame (6), and the static friction between the pressure rod (25) and the side frame (6) cooperates to limit the rotating frame; S5. Place a baffle on the top of the escalator. The baffle corresponds to the laser head (2) of the laser ruler body (1). Press the laser button (4). The laser head (2) emits laser light to the baffle. At this time, the length of the escalator is displayed on the display screen (3).

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