Elevator installation gap measuring device

Abstract

The invention discloses an elevator installation gap measuring device, relates to the field of elevator measurement, and solves the problems that two verniers on an existing gap measuring device are difficult to be in contact with the bottom of an elevator and the ground respectively and are suspended in the air, the elevator installation gap measuring device comprises a device shell and an installation support, and a fixing plate is installed on the inner side of the installation support; a positioning measuring plate is mounted at the bottom of the fixing plate, a measuring scale is mounted on the inner side of the mounting bracket, a moving block is slidably mounted on the outer side of the measuring scale, a moving measuring plate is arranged at the bottom of the moving block, and two marking pens are arranged on the outer side of the moving block; the measuring mechanism is used for enabling the movable measuring plate to measure the bottom of the elevator at a higher height, and the measuring mechanism is installed at the top of the device shell; through the measuring mechanism, the movable measuring plate can correspondingly move upwards according to the height of the bottom of the elevator, whether the movable measuring plate is aligned with the bottom of the elevator or not can be conveniently observed, the accuracy of the measuring ruler on the elevator installation gap is improved, and therefore the effect of accurate measurement is achieved.

Description

Technical Field

[0001] The invention relates to the field of elevator measurement, in particular to a device for measuring the installation gap of a lifting elevator. Background Art

[0002] An elevator is a vertical transportation device, mainly used to transport people or goods between different floors of a building. It is driven by an electric motor to move the car up and down on the guide rails to achieve fast and safe transportation. The elevator drives the wire rope or hydraulic system through the electric motor to make the car and counterweight move relative to each other on the guide rails. The control system dispatches the elevator according to instructions, and the safety device provides protection in emergency situations.

[0003] Elevator clearance refers to the gap between the elevator door and the elevator shaft wall. It is one of the important indicators of elevator safety. If the gap between the various parts of the elevator is too large or too small, it may cause collision, friction or jamming during operation, and even cause serious accidents. By measuring the gap, it can be ensured that the elevator will not cause safety hazards due to improper gap during operation. The existing gap measurement device usually uses a vernier caliper to measure the gap between the elevator and the ground. Due to the deviation between the height of the bottom of the elevator and the ground, it is difficult for the two verniers to contact the bottom of the elevator and the ground respectively, and they will be suspended in the air. The visual observation of the staff is prone to deviations, which affects the accuracy of the gap measurement. Summary of the invention

[0004] The object of the present invention is to provide a device for measuring the installation gap of a lift to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A device for measuring the installation gap of a lifting elevator comprises: a device housing and a mounting bracket fixedly mounted on the outer side of the device housing, a fixing plate fixedly mounted on the inner side of the mounting bracket, a positioning plate fixedly mounted on the bottom of the fixing plate, a measuring ruler fixedly mounted on the inner side of the mounting bracket, an end of the positioning plate and a starting end of the size of the measuring ruler are on a vertical line, a moving block is slidably mounted on the outer side of the measuring ruler, a moving plate is arranged at the bottom of the moving block, two symmetrically distributed marking pens are arranged on the outer side of the moving block, and the end of the marking pen is on a vertical line with the moving plate; Also includes: A measuring mechanism, used to improve the accuracy of the measuring ruler in measuring the elevator installation gap, the measuring mechanism being installed on the top of the device housing; A stake fixing mechanism, used for vertically positioning the device housing on the ground, the stake fixing mechanism being installed at the bottom of the device housing; The marking mechanism enables the marking pen to mark the surface of the measuring ruler, and the marking mechanism is installed on the outside of the marking pen.

[0006] Preferably, the measuring mechanism includes a first screw rod rotatably installed on the inner side of the mounting bracket, the moving block cooperates with the first screw rod, two symmetrically distributed first limit rods are fixedly installed on the inner side of the mounting bracket, the first limit rod slides through the moving block, an elastic telescopic frame is fixedly installed between the moving block and the moving amount plate, a transmission box is fixedly installed on the top of the device housing, a first transmission rod is rotatably installed on the inner side of the transmission box, an adjusting handle is rotatably installed on the side of the transmission box away from the mounting bracket, a second transmission rod is rotatably installed on the side of the transmission box away from the adjusting handle, matching bevel gears are fixedly installed on the outer sides of the first transmission rod, the adjusting handle and the second transmission rod, and a synchronous belt is rotatably installed between the second transmission rod and the first screw rod.

[0007] Preferably, the piling mechanism includes a vacuum cylinder fixedly mounted on the bottom of the device housing, a suction cup fixedly mounted on the bottom of the vacuum cylinder, a rubber piston slidably mounted on the inner side of the vacuum cylinder, a plurality of second limit rods symmetrically distributed in the center are fixedly mounted on the top of the rubber piston, the second limit rods slide through the vacuum cylinder and extend to the inner side of the device housing, a moving box is slidably mounted on the inner side of the device housing, the moving box has an annular structure, a moving ring is provided on the inner side of the moving box, a second screw matched with the moving ring is fixedly mounted on the bottom end of the first transmission rod, the bottom end of the second screw is rotatably mounted on the bottom of the device housing, and a positioning component for stopping the movement of the moving ring is also provided between the moving box and the moving ring.

[0008] Preferably, the marking mechanism includes a mounting block fixedly mounted on the outside of the moving block, the mounting block is slidably mounted between the two first limit rods, two symmetrically distributed telescopic rods are fixedly mounted on the bottom of the mounting block, a ring is fixedly mounted on the end of the telescopic rod away from the mounting block, the ring is slidably mounted on the outside of the marker, two symmetrically distributed retaining rings are fixedly mounted on the outside of the marker, a plurality of centrally symmetrically distributed tension springs are fixedly mounted between one side of the ring and the corresponding retaining ring, a sliding rod is fixedly mounted on the outside of the marker, a guide groove for limiting the sliding movement of the sliding rod is provided on the outside of the moving block, the bottom end of the guide groove is a slope structure, a pull rod is fixedly mounted on the outside of the telescopic rod, and a sleeve block for limiting the sliding movement of the pull rod is provided on the outside of the mounting block.

[0009] Preferably, a U-shaped handle is fixedly mounted on the outer side of the device housing, and an anti-slip sleeve is provided on the outer side of the U-shaped handle.

[0010] Preferably, a level ruler is fixedly mounted on the top of the mounting bracket.

[0011] Preferably, a pulley is fixedly mounted on a side of the movable measuring plate away from the positioning measuring plate.

[0012] Preferably, the positioning assembly includes four plug blocks symmetrically distributed on the inner side of the movable ring and slidably installed, the inner side of the movable ring is provided with a sliding cavity for limiting the sliding of the plug blocks, a spring is fixedly installed between the sliding cavity and the plug blocks, the side of the plug block away from the spring is an inclined structure, the inner side of the movable box is provided with a slot for limiting the insertion of the plug block, and the pitch of the first screw is smaller than the pitch of the second screw.

[0013] Preferably, a plurality of third limiting rods distributed symmetrically in the center are fixedly installed between the two retaining rings, and the third limiting rods slide through the collar.

[0014] Preferably, a convex ring is provided at one end of the sliding rod away from the sleeve ring, and the convex ring is slidably installed in the guide groove of the moving block.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention can make the positioning plate contact with the ground through the measuring mechanism, and then make the bottom end of the positioning plate contact with the bottom of the elevator. The moving block drives the moving plate to move along the outer side of the mounting bracket. The moving plate can move upward according to the height of the bottom of the elevator, which is convenient for accurately observing whether the moving plate is aligned with the bottom of the elevator, and improves the accuracy of the measuring ruler for the installation gap of the elevator, thereby achieving the effect of accurate measurement.

[0016] The present invention uses a stake fixing mechanism, which enables the rubber piston to move upward along the inner side of the vacuum cylinder during the movement of the movable measuring plate, quickly extracts the air between the suction cup and the ground, and enables the device shell to be fixed on the ground, thereby improving the convenience of elevator gap measurement and preventing skewness, thereby achieving a fast and smooth measurement effect.

[0017] The present invention uses a marking mechanism, when the movable measuring plate moves to the edge of the elevator gap, the pull rod is pulled upward to make the slide bar move along the guide groove of the movable block, and the marking pen can contact the measuring ruler and move upward to mark the measuring ruler, so that the next gap point of the elevator can be measured, thereby facilitating multi-point measurement of the elevator gap. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the mounting bracket and the moving block in the present invention; Figure 3 It is a schematic diagram of the transmission box and the adjustment handle structure of the present invention; Figure 4 It is a schematic diagram of the structure of the vacuum pump and the suction cup in the present invention; Figure 5 It is a schematic diagram of the structure of the plug-in block and the moving box in the present invention; Figure 6 It is a schematic diagram of the mounting block and the pull rod structure in the present invention; Figure 7 It is a schematic diagram of the structure of the collar and the slide rod in the present invention; Figure 8 It is a schematic diagram of the structure of the marking pen and the retaining ring in the present invention.

[0019] In the figure: 1. device housing; 2. mounting bracket; 3. fixing plate; 4. positioning plate; 5. measuring ruler; 6. moving block; 7. moving plate; 8. marking pen; 9. first screw rod; 10. first limit rod; 11. elastic telescopic frame; 12. transmission box; 13. first transmission rod; 14. adjustment handle; 15. second transmission rod; 16. bevel gear; 17. synchronous belt; 18. vacuum pump; 19. suction cup; 20. rubber piston; 21. second limit rod; 22. moving box; 23. moving ring; 24. second screw rod; 25. mounting block; 26. telescopic rod; 27. collar; 28. retaining ring; 29. ​​tension spring; 30. slide rod; 31. pull rod; 32. U-shaped handle; 33. level ruler; 34. plug block; 35. spring; 36. third limit rod; 37. pulley. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figure 1-Figure 8The illustrated device for measuring the installation gap of a lift elevator includes a device housing 1 and a mounting bracket 2 fixedly mounted on the outer side of the device housing 1. The device housing 1 and the mounting bracket 2 are at a right angle. A U-shaped handle 32 is fixedly mounted on the outer side of the device housing 1. An anti-slip sleeve is arranged on the outer side of the U-shaped handle 32 to facilitate the staff to pick up the device housing 1. A level ruler 33 is fixedly mounted on the top of the mounting bracket 2. The level ruler 33 can be used to judge whether the device housing 1 and the mounting bracket 2 are level. A fixing plate 3 is fixedly mounted on the inner side of the mounting bracket 2. A positioning plate 4 is fixedly mounted on the bottom of the fixing plate 3. A measuring ruler 5 is fixedly mounted on the inner side of the mounting bracket 2. The positioning plate 4 is fixedly mounted on the bottom of the fixing plate 3. The end is on a vertical line with the starting end of the size of the measuring ruler 5, the positioning plate 4 can be aligned with one end of the elevator gap and indicate the starting end of the size of the measuring ruler 5, a moving block 6 is slidably installed on the outer side of the measuring ruler 5, a moving plate 7 is arranged at the bottom of the moving block 6, two symmetrically distributed marking pens 8 are arranged on the outer side of the moving block 6, the end of the marking pen 8 is on a vertical line with the moving plate 7, when the moving plate 7 is aligned with the other end of the elevator gap, the position of the size of the measuring ruler 5 indicated by the marking pen 8 is the length of the elevator gap; it also includes: a measuring mechanism, used to improve the accuracy of the measuring ruler 5 in measuring the elevator installation gap, the measuring mechanism is installed on the top of the device housing 1; The measuring mechanism includes a first screw rod 9 rotatably mounted on the inner side of the mounting bracket 2, and the moving block 6 cooperates with the first screw rod 9. Two symmetrically distributed first limit rods 10 are fixedly mounted on the inner side of the mounting bracket 2, and the first limit rod 10 slides through the moving block 6. When the first screw rod 9 rotates, it can drive the moving block 6 to move horizontally along the outer side of the measuring ruler 5 and the first limit rod 10. An elastic telescopic frame 11 is fixedly mounted between the moving block 6 and the moving measuring plate 7, and a pulley 37 is fixedly mounted on the side of the moving measuring plate 7 away from the positioning measuring plate 4, so that the moving measuring plate 7 can contact the bottom of the elevator through the pulley 37, so that the moving measuring plate 7 can move on the bottom of the elevator, and when the pulley 37 contacts the bottom of the elevator, the elasticity of the elastic telescopic frame 11 is used to enable the moving measuring plate 7 to move upward accordingly, so that the moving measuring plate 7 is suitable for more heights. The elevator device has a transmission box 12 fixedly installed on the top of the housing 1, a first transmission rod 13 rotatably installed on the inner side of the transmission box 12, the first transmission rod 13 is vertically installed on the inner side of the transmission box 12, an adjusting handle 14 is rotatably installed on the side of the transmission box 12 away from the mounting bracket 2, a second transmission rod 15 is rotatably installed on the side of the transmission box 12 away from the adjusting handle 14, the first transmission rod 13, the adjusting handle 14 and the outer sides of the second transmission rod 15 are all fixedly installed with matching bevel gears 16, when the adjusting handle 14 is rotated, the second transmission rod 15 can be driven to rotate through the three bevel gears 16 and the first transmission rod 13, a synchronous belt 17 is rotatably installed between the second transmission rod 15 and the first screw 9, so that the second transmission rod 15 drives the first screw 9 to rotate through the synchronous belt 17, so as to realize the position adjustment of the movable plate 7.

[0022] Example 2: Please refer to Figure 1-Figure 5 The present embodiment further explains the first embodiment. The piling mechanism shown in the figure includes a vacuum cylinder 18 fixedly mounted on the bottom of the device housing 1. A suction cup 19 is fixedly mounted on the bottom of the vacuum cylinder 18. A rubber piston 20 is slidably mounted on the inner side of the vacuum cylinder 18. When the rubber piston 20 moves, the air between the suction cup 19 and the ground can be extracted through the vacuum cylinder 18, so that the suction cup 19 is adsorbed on the ground, and the device housing 1 can be stably fixed on the ground. A plurality of second limiting rods 21 symmetrically distributed in the center are fixedly mounted on the top of the rubber piston 20. The second limiting rods 21 slide through the vacuum cylinder 18 and extend to the inner side of the device housing 1. The second limiting rod 21 provides a guide for the movement of the rubber piston 20 to prevent the rubber piston 20 from being skewed when moving. A moving box 22 is slidably installed on the inner side of the device housing 1. The moving box 22 is annular in structure. A moving ring 23 is arranged on the inner side of the moving box 22. A second screw 24 matching the moving ring 23 is fixedly installed on the bottom end of the first transmission rod 13. When the first transmission rod 13 rotates, the second screw 24 can be driven to rotate synchronously. When the second screw 24 rotates, the moving box 22 can be driven to rotate through the moving ring 23, so that the moving box 22 drives the rubber piston 20 along the vacuum cylinder through the second limiting rod 21. 18 is moved inside, the bottom end of the second screw 24 is rotatably installed at the bottom of the device housing 1, and a positioning component for stopping the movement of the moving ring 23 is also provided between the moving box 22 and the moving ring 23. The positioning component includes four plug blocks 34 that are slidably installed on the inner side of the moving ring 23 and are centrally symmetrically distributed. A sliding cavity for limiting the sliding of the plug block 34 is provided on the inner side of the moving ring 23. A spring 35 is fixedly installed between the sliding cavity and the plug block 34. The side of the plug block 34 away from the spring 35 is an inclined structure. A slot for limiting the insertion of the plug block 34 is provided on the inner side of the moving box 22. When the second screw 24 drives the moving ring 23 to rotate, the elastic force of the spring 35 is utilized. The potential energy of the plug block 34 is pressed against the slot of the mobile box 22, and the mobile ring 23 can drive the mobile box 22 to rotate synchronously, so that the mobile box 22 drives the rubber piston 20 to move through the second limit rod 21. When the mobile box 22 contacts the bottom of the device housing 1, the resistance of the device housing 1 to the mobile box 22 is used to make the inclined surface of the plug block 34 move along the slot of the mobile box 22, and the plug block 34 compresses the spring 35 and is retracted into the sliding cavity of the mobile ring 23. The pitch of the first screw 9 is smaller than the pitch of the second screw 24, so that the moving speed of the mobile box 22 is greater than the moving speed of the moving plate 7, so that the suction cup 19 is quickly adsorbed on the ground.

[0023] Example 3: Please refer to Figure 2 , Figure 7 and Figure 8, this embodiment further illustrates other embodiments, the marking mechanism shown in the figure includes a mounting block 25 fixedly mounted on the outside of the moving block 6, the mounting block 25 is slidably mounted between the two first limiting rods 10, when the moving block 6 moves, it can drive the mounting block 25 to move along the outside of the two first limiting rods 10, two symmetrically distributed telescopic rods 26 are fixedly mounted on the bottom of the mounting block 25, the mounting block 25 can drive the telescopic rods 26 to move synchronously, a collar 27 is fixedly mounted on one end of the telescopic rod 26 away from the mounting block 25, the collar 27 is slidably mounted on the outside of the marker 8, the telescopic rod 26 can drive the marker 8 to move synchronously through the collar 27, two symmetrically distributed retaining rings 28 are fixedly mounted on the outside of the marker 8, a plurality of centrally symmetrically distributed tension springs 29 are fixedly mounted between one side of the collar 27 and the corresponding retaining ring 28, a plurality of centrally symmetrically distributed third limiting rods 36 are fixedly mounted between the two retaining rings 28, the third limiting rod 36 slides through the collar 27, so that the collar 27 can be stably moved along The outer side of the marker pen 8 is moved along the outer side of the marker pen 8, and a slide bar 30 is fixedly installed on the outer side of the marker pen 8. A guide groove for the slide bar 30 to limit the sliding of the slide bar 30 is opened on the outer side of the moving block 6. The bottom end of the guide groove is an inclined structure. When the collar 27 moves upward, it can drive the slide bar 30 on the marker pen 8 to move along the guide groove. When the slide bar 30 moves along the inclined surface of the guide groove, the marker pen 8 can move horizontally along the outer side of the collar 27, so that the marker pen 8 contacts the outer side of the measuring ruler 5, and the slide bar 30 moves along the vertical end of the guide groove. During movement, the marking pen 8 can mark the measuring ruler 5. A convex ring is provided at the end of the slide rod 30 away from the ring 27. The convex ring is slidably installed in the guide groove of the moving block 6 to improve the stability of the movement of the slide rod 30 and prevent the slide rod 30 from slipping out of the guide groove. A pull rod 31 is fixedly installed on the outer side of the telescopic rod 26. The pull rod 31 can pull the telescopic rod 26 to retract upward, that is, pull the ring 27 to move upward. A sleeve block is provided on the outer side of the mounting block 25 for limiting the sliding of the pull rod 31, thereby improving the stability of the movement of the pull rod 31.

[0024] Working principle: First, the staff puts the suction cup 19 on the ground, aligns the bottom end of the positioning plate 4 with one end of the elevator gap, and the pulley 37 on the moving plate 7 contacts the bottom of the elevator, and uses the elasticity of the elastic telescopic frame 11 to make the moving plate 7 move upward accordingly. At this time, the staff rotates the adjustment handle 14, and the adjustment handle 14 drives the first transmission rod 13 to rotate through the bevel gear 16 on its outer side and the bevel gear 16 on the outer side of the first transmission rod 13. The first transmission rod 13 drives the moving ring 23 to rotate through the first screw 9. The elastic potential energy of the spring 35 is used to make the insert block 34 in the sliding cavity of the moving ring 23 drive the moving box 22 to rotate. The moving box 22 is limited by multiple second limit rods 21, so that the moving box 22 pulls the rubber piston 20 to move along the inner side of the vacuum cylinder 18 through the second limiting rod 21, extracts the air between the suction cup 19 and the ground, so that the suction cup 19 is adsorbed and fixed on the ground, and the device housing 1 is firmly fixed on the ground. When the bottom of the mobile box 22 contacts the bottom of the device housing 1, due to the resistance of the bottom of the device housing 1 to the mobile box 22, the inclined surface of the plug block 34 moves along the slot of the mobile box 22, and the plug block 34 compresses the spring 35 and is received into the sliding cavity of the mobile ring 23. The second screw 24 drives the mobile ring 23 to rotate continuously and maintains the position of the mobile box 22. At the same time, the first transmission rod 13 drives the second transmission rod 15 to rotate through the bevel gear 16, and the second transmission rod 15 is driven by the synchronous belt 1 7 drives the first screw rod 9 to rotate, the first screw rod 9 drives the moving block 6 to move horizontally along the two first limit rods 10 and the outer side of the measuring ruler 5, the moving block 6 drives the mounting block 25 to move synchronously with the elastic telescopic frame 11, the elastic telescopic frame 11 drives the pulley 37 on the moving measuring plate 7 to move along the bottom of the elevator, so that the bottom end of the moving measuring plate 7 is aligned with the other end of the elevator gap. At this time, the marking pen 8 is aligned with the size on the measuring ruler 5. Finally, the staff pulls the pull rod 31 to move upward, so that the pull rod 31 drives the bottom end of the telescopic rod 26 to retract upward, the telescopic rod 26 drives the ring 27 to move synchronously, so that the ring 27 drives the marking pen 8 to move synchronously, and the slide bar 30 on the marking pen 8 moves along the inclined surface of the bottom end of the guide groove on the moving block 6 , so that the slide bar 30 can drive the marker pen 8 to move along the inner side of the ring 27, and the marker pen 8 pulls the tension spring 29 through the retaining ring 28, so that the marker pen 8 can contact the outer side of the measuring ruler 5, and when the slide bar 30 moves along the vertical end of the guide groove, the marker pen 8 can draw a straight line mark on the measuring ruler 5, and the staff can obtain the elevator gap through the mark on the measuring ruler 5. Moreover, when the staff releases the pull rod 31, the rebound force of the tension spring 29 and the gravity of the marker pen 8 are used to reset the marker pen 8 downward and away from the measuring ruler 5, so as to facilitate the measurement and marking of the next measuring point, facilitate the processing and measurement of multiple gap points of the elevator, and judge whether there is a deviation, thereby improving the accuracy and convenience of elevator measurement.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprise" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for measuring the installation gap of a lifting elevator, characterized in that: include: A device housing (1) and a mounting bracket (2), wherein a fixing plate (3) is mounted on the inner side of the mounting bracket (2), a positioning plate (4) is mounted on the bottom of the fixing plate (3), a measuring ruler (5) is mounted on the inner side of the mounting bracket (2), a moving block (6) is slidably mounted on the outer side of the measuring ruler (5), a moving plate (7) is arranged at the bottom of the moving block (6), and two marking pens (8) are arranged on the outer side of the moving block (6); Also includes: A measuring mechanism, used to improve the accuracy of the measuring ruler (5) in measuring the elevator installation gap, the measuring mechanism being mounted on the top of the device housing (1); A stake fixing mechanism, used for vertically positioning the device housing (1) on the ground, the stake fixing mechanism being installed at the bottom of the device housing (1); A marking mechanism enables the marking pen (8) to mark the surface of the measuring ruler (5), and the marking mechanism is installed on the outside of the marking pen (8).

2. The device for measuring the installation gap of an elevator according to claim 1, characterized in that: The measuring mechanism comprises a first screw (9) mounted on the inner side of the mounting bracket (2), the moving block (6) being matched with the first screw (9), two first limit rods (10) being fixedly mounted on the inner side of the mounting bracket (2), the first limit rods (10) slidingly passing through the moving block (6), an elastic telescopic frame (11) being fixedly mounted between the moving block (6) and the moving amount plate (7), a transmission box (12) being mounted on the top of the device housing (1), a first transmission rod (13) being mounted on the inner side of the transmission box (12), an adjustment handle (14) being mounted on one side of the transmission box (12), a second transmission rod (15) being mounted on one side of the transmission box (12), matched bevel gears (16) being fixedly mounted on the outer sides of the first transmission rod (13), the adjustment handle (14) and the second transmission rod (15), and a synchronous belt (17) being rotatably mounted between the second transmission rod (15) and the first screw (9).

3. The device for measuring the installation gap of an elevator according to claim 2, characterized in that: The piling mechanism comprises an air pump (18) mounted on the bottom of the device housing (1), a suction cup (19) being mounted on the bottom of the air pump (18), a rubber piston (20) being slidably mounted on the inner side of the air pump (18), a plurality of second limit rods (21) being fixedly mounted on the top of the rubber piston (20), a moving box (22) being mounted on the inner side of the device housing (1), a moving ring (23) being arranged on the inner side of the moving box (22), a second screw (24) matching with the moving ring (23) being fixedly mounted on the bottom end of the first transmission rod (13), and a positioning assembly for stopping the moving ring (23) from moving is also arranged between the moving box (22) and the moving ring (23).

4. The device for measuring the installation gap of a lifting elevator according to claim 3, characterized in that: The marking mechanism comprises a mounting block (25) mounted on the outside of the moving block (6), two telescopic rods (26) being fixedly mounted on the bottom of the mounting block (25), a sleeve ring (27) being fixedly mounted on one end of the telescopic rod (26), the sleeve ring (27) being slidably mounted on the outside of the marking pen (8), two retaining rings (28) being fixedly mounted on the outside of the marking pen (8), a plurality of tension springs (29) being fixedly mounted on one side of the sleeve ring (27), a sliding rod (30) being fixedly mounted on the outside of the marking pen (8), a guide groove for limiting the sliding of the sliding rod (30) being provided on the outside of the moving block (6), the bottom end of the guide groove being an inclined structure, and a pull rod (31) being fixedly mounted on the outside of the telescopic rod (26).

5. The device for measuring the installation gap of an elevator according to claim 1, characterized in that: A U-shaped handle (32) is fixedly mounted on the outer side of the device housing (1).

6. The device for measuring the installation gap of an elevator according to claim 1, characterized in that: A level ruler (33) is fixedly mounted on the top of the mounting bracket (2).

7. The device for measuring the installation gap of an elevator according to claim 3, characterized in that: A pulley (37) is fixedly mounted on one side of the moving amount plate (7).

8. The device for measuring the installation gap of an elevator according to claim 3, characterized in that: The positioning assembly comprises four insert blocks (34) slidably mounted on the inner side of the moving ring (23); a spring (35) is fixedly mounted between the insert blocks (34) on the inner side of the moving ring (23); one side of the insert blocks (34) is an inclined surface structure; a slot for limiting insertion of the insert blocks (34) is provided on the inner side of the moving box (22); and the pitch of the first screw rod (9) is smaller than the pitch of the second screw rod (24).

9. The device for measuring the installation gap of an elevator according to claim 4, characterized in that: A plurality of third limiting rods (36) are fixedly mounted between the two retaining rings (28), and the third limiting rods (36) slide through the sleeve ring (27).

10. The device for measuring the installation gap of an elevator according to claim 4, characterized in that: A convex ring is provided at one end of the sliding rod (30), and the convex ring is slidably mounted in the guide groove of the moving block (6).

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