CN211393439U

CN211393439U - Fixing device of base for elevator door inspection

Info

Publication number: CN211393439U
Application number: CN201922071162.5U
Authority: CN
Inventors: 张伟; 赵巍; 田野
Original assignee: Beijing Xinglin Weiye Elevator Engineering Co ltd
Current assignee: Beijing Xinglin Weiye Elevator Engineering Co ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-09-01
Anticipated expiration: 2029-11-25

Abstract

The utility model relates to a fixing device of elevator door inspection base belongs to the technical field that the elevator detected, has solved the technical problem that elevator inspection used base just unable normal use after the circuit of the electro-magnet of elevator inspection base damages. Fixing device is including installing the annular electromagnet in the battery bottom, fixing device is still including connecting emergent fixed subassembly in the cylindrical cavity of annular electromagnet, emergent fixed subassembly is including respectively with the sucking disc and the spliced pole of the coaxial setting of annular electromagnet, battery one end is kept away from to the opening orientation of sucking disc, the afterbody at the sucking disc is connected to the spliced pole, be provided with on the global of spliced pole and make the sucking disc stretches out annular electromagnet or withdraws the subassembly that slides in the annular electromagnet. The utility model discloses have under the circumstances of electromagnetism circuit damage, do not influence the normal detection achievement of lift-cabin door inspection with base, make its advantage that work efficiency is high.

Description

Fixing device of base for elevator door inspection

Technical Field

The utility model belongs to the technical field of the technique that the elevator detected and specifically relates to a fixing device of base is used in elevator door inspection.

Background

At present, the quantity of elevator inspection tasks is continuously increased, the elevator inspection work needs to be completed faster and better, and according to the relevant specifications of elevator inspection, the relevant parameters of elevator landing doors and car doors need to be detected. In the process of detecting the relevant parameters of the elevator, a base for detecting the elevator door is often used, wherein the base is used for fixing the detection equipment on the elevator door, and after the elevator is opened, the relevant parameters on the elevator door are detected.

The existing elevator door inspection base is fixed on an elevator door by an electromagnet to detect relevant parameters of the elevator. The utility model discloses a base is used in inspection of high efficiency lift-cabin door is disclosed to utility model patent that grant publication number is CN208700344U, which comprises a housin, two fixed subassemblies, connecting rod and work subassembly, two fixed subassemblies are installed respectively in the inside of casing, the connecting rod is installed between two fixed subassemblies, the work unit mount is in the inside of connecting rod, fixed subassembly is including installing the battery at its top and installing the electro-magnet in the battery bottom, the work subassembly includes the display, a controller, the processing unit, noise sensor, vibration sensor, displacement sensor, the top at the processing unit is installed to the display, the left side at the processing unit is installed to the controller, noise sensor, vibration sensor installs both ends about controller and processing unit below respectively.

However, the electromagnet of the elevator inspection base is damaged due to the reasons of too long service time, too high voltage, too tight sealing and poor heat dissipation, and the like, and when the circuit of the electromagnet of the elevator inspection base is damaged in the use process, the elevator inspection base cannot be normally used.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art existence, the utility model aims at providing a fixed subassembly of base is used in elevator door inspection, under the condition that the electro-magnet of foretell base is used in elevator inspection line damage, still can fix the base is used in elevator inspection on the elevator door, does not influence its normal detection achievement, has the advantage that makes base normal use, work efficiency height in succession for elevator inspection.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a fixing device of base is used in elevator door inspection, is including installing the electro-magnet in the battery bottom, the electro-magnet is annular electromagnet, fixing device is still including connecting emergent fixed subassembly in annular electromagnet's the cylindrical cavity, emergent fixed subassembly includes respectively with the sucking disc and the spliced pole of the coaxial setting of annular electromagnet, battery one end is kept away from to the opening orientation of sucking disc, the afterbody at the sucking disc is connected to the spliced pole, be provided with on the global of spliced pole and make the sucking disc stretches out annular electromagnet or withdraws the subassembly that slides in the annular electromagnet.

By adopting the technical scheme, when the line of the electromagnet is damaged, the emergency fixing component is started temporarily, the sucker arranged in the annular electromagnet per se is slid out of the cylindrical cavity of the annular electromagnet through the sliding component, and the base for elevator door inspection is fixed on the elevator door by using the sucker; and when the inspection is finished or the sucker is not used, the sucker slides into the cylindrical cavity of the annular electromagnet through the sliding assembly. The operation is simple, practical and efficient. The efficient and continuous detection of the elevator door is realized.

The present invention may be further configured in a preferred embodiment as: the inner peripheral surface of the annular electromagnet is fixedly connected with a shell wrapping the inner peripheral surface of the annular electromagnet, and the emergency fixing component is connected to the inner wall of the shell in a sliding mode through the sliding component.

Through adopting above-mentioned technical scheme, be convenient for be connected emergent fixed subassembly and annular electromagnet erection.

The present invention may be further configured in a preferred embodiment as: the sliding assembly comprises a clamping piece arranged on the connecting column and a sliding chute arranged on the shell and used for clamping the clamping piece on the shell, the clamping piece comprises a first connecting rod fixedly connected on the circumferential surface of the connecting column and a first clamping block fixedly connected at one end, far away from the connecting column, of the first connecting rod, and the first clamping block extends out of the first connecting rod to two sides along the radial direction of the connecting column for a certain distance; the sliding groove is arranged on the inner wall of the shell along the axial direction of the sliding groove, the sliding groove comprises a first groove and a second groove, the first groove is formed in the surface of the inner wall of the shell, the second groove is formed along the groove bottom of the first groove and extends to the outer surface direction of the shell along the radial direction of the second groove, and the second groove is wider than the first groove. By adopting the technical scheme, firstly, the emergency fixing component is connected with the shell by clamping the clamping piece and the shell; secondly, the connection between the shell and the emergency fixing component is further stabilized through the structural matching between the clamping piece and the sliding groove structure on the shell; in addition, the setting of first joint piece and spout has realized emergent fixed subassembly roll-off and the slip-in on the shell.

The present invention may be further configured in a preferred embodiment as: a spring is arranged in the second groove, one end of the spring is fixedly connected with one end, close to the opening of the sucker, of the second groove, and the other end of the spring is fixedly connected with the first clamping block; the connecting columns comprise a first connecting column fixedly connected with the sucking disc and a second connecting column rotatably connected to the end face, far away from the sucking disc, of the first connecting column, and the sliding assembly is arranged between the first connecting column and the shell; the outer peripheral face of keeping away from sucking disc one end of second spliced pole is gone up there is first limiting plate along its radial rigid coupling, there is the second limiting plate along its radial rigid coupling on the inner wall of shell, the second limiting plate is located between first sucking disc and the first limiting plate in the axial of sucking disc, the long sum of pole of first limiting plate and second limiting plate is greater than the radial distance between shell inner wall and the second spliced pole outer wall, setting between first limiting plate and the second limiting plate is on the different axial planes of shell.

Through adopting above-mentioned technical scheme, when not using the sucking disc, arrange the lower surface department of second limiting plate in with first limiting plate, the spring is in the state of compression this moment, through the spring, the setting of first spliced pole and second spliced pole and the cooperation relation between the three, realized the connection between shell and the first joint piece and the restriction to the position of sucking disc after release and receipts, make the sucking disc adsorb on the lift-cabin door more steadily when using, can be stably in the cavity of shell under the effect of spring when the sucking disc does not use.

The present invention may be further configured in a preferred embodiment as: and a third limiting plate is fixedly connected to one side, far away from the sucker, of the second limiting plate on the inner wall of the shell, and the first limiting plate is located between the second limiting plate and the third limiting plate in the axial direction of the sucker.

Through adopting above-mentioned technical scheme, when not using the sucking disc, place first limiting plate in the upper surface department of third limiting plate, the spring is in the state of extension this moment, further stabilizes the sucking disc in the cavity of shell.

The present invention may be further configured in a preferred embodiment as: the surface of the first limiting plate close to one end of the shell and far away from the sucker is fixed with a second clamping block, and a third groove for clamping the second clamping block is formed in the surface of the second limiting plate close to the sucker.

Through adopting above-mentioned technical scheme, prevent that first limiting plate and second limiting plate from having the displacement in footpath, further make the position between first limiting plate and the second limiting plate inject more firm.

The present invention may be further configured in a preferred embodiment as: the tail part of the sucker is provided with a sucker handle.

Through adopting above-mentioned technical scheme, be convenient for carry out relevant operation to the sucking disc, be convenient for press the sucking disc on the lift-cabin door or break away from the lift-cabin door.

The present invention may be further configured in a preferred embodiment as: and a lifting handle is arranged at the upper end of the second connecting column.

Through adopting above-mentioned technical scheme, be convenient for realize emergent fixed subassembly at the axial operation that slides of shell through carrying the pull handle.

The present invention may be further configured in a preferred embodiment as: the shell is in threaded connection with the annular electromagnet.

Through adopting above-mentioned technical scheme, will meet an urgent need fixed subassembly and take off from annular electromagnet when not using emergent fixed subassembly.

To sum up, the utility model discloses a following at least one useful technological effect:

1. through set up emergent fixed subassembly in the cavity of annular electromagnet, sucking disc, spliced pole and subassembly that slides promptly, launch emergent fixed subassembly when the circuit of electromagnet damages, guarantee that elevator detects and can fix on the lift-cabin door with the base always, realized the high-efficient, continuous detection to the lift-cabin door.

2. Through the arrangement of the spring, the first limiting plate, the second limiting plate and the third limiting plate which are arranged in the second groove, the situation that the emergency fixing assembly can be stably fixed on the shell when the emergency fixing assembly is used or not used is achieved, and the accuracy of detection data is guaranteed.

3. Through with shell and annular electromagnet threaded connection for will meet an urgent need fixed subassembly take off from annular electromagnet when not using emergent fixed subassembly, make its maintenance and change convenient more high-efficient.

Drawings

Fig. 1 is a schematic view of the overall structure of the fixing device of the present invention;

FIG. 2 is a schematic illustration of the attachment post of the fixture without showing the annular electromagnet and the housing exploded;

FIG. 3 is a top view of the fixture;

fig. 4 is a sectional view taken along line a-a of fig. 3.

In the figure, 11, a ring-shaped electromagnet; 2. a suction cup; 21. a suction cup handle; 3. connecting columns; 31. a first connecting column; 311. rotating the column; 312. a third clamping block; 32. a second connecting column; 321. a first limit plate; 3211. a second clamping block; 3212. a fourth clamping block; 322. lifting the handle; 323. a fifth groove; 324. a sixth groove; 4. a slipping component; 41. a clamping piece; 411. a first link; 412. a first clamping block; 42. a chute; 421. a first groove; 422. a second groove; 423. a spring; 5. a housing; 51. a second limiting plate; 52. and a third limiting plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

a fixing device of a base for elevator door inspection, as shown in figure 1 and figure 2, comprises an annular electromagnet 11 arranged at the bottom of a storage battery and an emergency fixing component connected in a cylindrical cavity of the annular electromagnet 11. Emergent fixed subassembly is including respectively with sucking disc 2 and the spliced pole 3 of the coaxial setting of annular electromagnet 11, and battery one end is kept away from to the opening orientation of sucking

disc

2, and 3 rigid couplings of spliced pole are provided with on spliced pole 3 global and make sucking disc 2 stretch out annular electromagnet 11 or withdraw to the subassembly 4 that slides in the annular electromagnet 11.

As in the background art, the elevator door inspection base comprises a shell, two fixing components, a connecting rod and a working component, the end of the ring-shaped magnet 11 away from the sucker 2 is provided with a storage battery, the connecting rod and the working component are similar to those in the background art, and are specifically set to be known by the technicians in the field, and the invention is not described in detail herein because the arrangement herein does not relate to the invention of the utility model.

Further, the inner peripheral surface of the annular electromagnet 11 is fixedly connected with a shell 5 wrapping the inner peripheral surface thereof, the shell 5 is a hollow annular shell 5, and the emergency fixing component is connected to the inner wall of the shell 5 in a sliding manner through the sliding component 4.

Specifically, the connecting column 3 comprises a first connecting column 31 fixedly connected with the suction cup 2 and a second connecting column 32 rotatably connected to the end face, far away from the suction cup 2, of the first connecting column 31, and the radiuses of the first connecting column 31 and the second connecting column 32 are the same. The end face of the first connecting column 31 far from the suction cup 2 is coaxially and fixedly connected with a rotating column 311, the end face of the rotating column 311 far from the first connecting column 31 is fixedly connected with a third clamping block 312, the third clamping block 312 is a cylindrical block coaxially arranged with the rotating column 311, and the radius of the radial end face of the third clamping block 312 is larger than that of the rotating column 311. Corresponding to the structures of the rotating column 311 and the third clamping block 312, as shown in fig. 2 and 4, a cylindrical fifth groove 323 and a cylindrical sixth groove 324 are formed in the end surface of the second connecting column 32 close to the suction cup 2, the fifth groove 323 is formed in the end surface of the second connecting column 32 close to the suction cup 2 and extends to the end far away from the suction cup 2 along the axial direction of the second connecting column 32, and the rotating column 311 is just placed in the fifth groove 323; the sixth groove 324 is opened on the bottom surface of the fifth groove 323 and extends to the end far away from the suction cup 2 along the axial direction of the second connecting column 32, and the third clamping block 312 is just arranged in the sixth groove 324.

As shown in fig. 4, the glide assembly 4 is disposed between the first connecting post 31 and the housing 5; the sliding assembly 4 comprises a clamping piece 41 arranged on the first connecting column 31 and a sliding groove 42 arranged on the shell 5 and arranged along the axial direction of the inner wall of the shell 5. Specifically, the clamping member 41 includes a first connecting rod 411 fixedly connected to the circumferential surface of the first connecting column 31 and a first clamping block 412 fixedly connected to an end of the first connecting rod 411 far away from the first connecting column 31, the first connecting rod 411 may be a cylindrical rod, the first clamping block 412 is a cube-shaped block structure, and preferably, the first clamping block 412 extends on the first connecting rod 411 to two sides along the radial direction of the first connecting column 31 for a distance respectively so as to clamp the first connecting rod 411 in the sliding groove 42. With the structure assorted of first link 411 and first joint piece 412, spout 42 includes first recess 421 and second recess 422, first recess 421 is seted up from the surface of 5 inner walls of shell, second recess 422 is seted up and is extended to the surface of shell 5 from the tank bottom of first recess 421, second recess 422 is wider than first recess 421, the one end that first link 411 is close to first joint piece 412 stretches into in first recess 421, second recess 422 is arranged in to first joint piece 412, joint 41 joint on shell 5 through spout 42, and joint 41 drives sucking disc 2, spliced pole 3 slides along the axial of shell 5 on shell 5.

Further, as shown in fig. 4, a spring 423 is disposed in the second groove 422, one end of the spring 423 is fixedly connected to one end of the second groove 422 close to the opening of the suction cup 2, and the other end of the spring 423 is fixedly connected to the first clamping block 412. A first limiting plate 321 is fixedly connected to the outer peripheral surface of one end, far away from the sucker 2, of the second connecting column 32 along the radial direction of the outer peripheral surface, and a second limiting plate 51 is fixedly connected to the inner wall of the shell 5 along the radial direction of the inner wall; the second stopper plate 51 is located between the suction cup 2 and the first stopper plate 321 in the axial direction of the suction cup 2.

When the suction cup 2 is not used, the spring 423 is in a state where no pressure is applied, and the first stopper plate 321 is located on the side of the second stopper plate 51 away from the suction cup 2. When the sucker 2 needs to be used, the connecting column 3 is pushed towards the opening direction of the sucker 2, at the moment, the first clamping block 412 slides along the sliding groove 42 towards the opening direction of the sucker 2, meanwhile, the spring 423 is gradually compressed, and the sucker 2 is gradually pushed out of the annular electromagnet 11. When the suction cup 2 is completely pushed out of the annular electromagnet 11, the first limiting plate 321 is positioned between the suction cup 2 and the second limiting plate 51, the second connecting column 32 is rotated at the moment, the first limiting plate 321 is driven to rotate along with the central axis of the second connecting column 32 as a center until the first limiting plate 321 and the second limiting plate 51 are on the same axial plane, the force applied to the second connecting column 32 is released, the end face, far away from the suction cup 2, of the first limiting plate 321 is abutted against the end face, close to the suction cup 2, of the second limiting plate 51 under the action of the elastic force of the spring 423, and the sliding distance of the emergency fixing component on the shell 5 is limited; and since the spring 423 is still in a compressed state at this time, the emergency fixing assembly can be stably restrained at a corresponding position on the housing 5.

As shown in fig. 4, further, in order to enable the suction cup 2 to be stably limited on the housing 5 when the suction cup 2 is not used, a third limiting plate 52 is fixedly connected on the inner wall of the housing 5 above the second limiting plate 51, and the first limiting plate 321 is located between the second limiting plate 51 and the third limiting plate 52 in the axial direction of the suction cup 2. Referring to fig. 3, the sum of the rod lengths of the first limiting plate 321 and the second limiting plate 51 is greater than the radial distance between the inner wall of the housing 5 and the outer wall of the second connecting column 32, and the first limiting plate 321 and the second limiting plate 51 are disposed on different axial surfaces of the housing 5. The second stopper plate 51 and the third stopper plate 52 are provided on the same axial surface of the housing 5, and the second stopper plate 51 and the third stopper plate 52 are the same size.

When the first stopper plate 321 is located between the second stopper plate 51 and the third stopper plate 52 in the axial direction of the suction cup 2, the spring 423 is in a state where no pressure is applied; when placing first limiting plate 321 in the one end of keeping away from the sucking disc 2 of third limiting plate 52, spring 423 was in tensile state this moment, and at this moment, first limiting plate 321 is close to an terminal surface of sucking disc 2 and the terminal surface butt of keeping away from sucking disc 2 of third limiting plate 52, can be firmly with sucking disc 2 spacing in shell 5 when not using sucking disc 2.

In order to prevent the first limiting plate 321 and the second limiting plate 51 from displacing in the radial direction of the disc when abutting against each other, as shown in fig. 4, a second clamping block 3211 is fixed on the surface of the first limiting plate 321 close to the end of the housing 5, which is far away from the suction cup 2, and a third groove (not shown in the figure) for clamping the second clamping block 3211 is formed on the surface of the second limiting plate 51 close to the suction cup 2, so that the position between the first limiting plate 321 and the second limiting plate 51 is further defined more stably. In the same way as above, the surface of the first limiting plate 321 close to the suction cup 2 at the end close to the casing 5 is fixed with a fourth clamping block 3212, and the surface of the third limiting plate 52 far from the suction cup 2 is provided with a fourth groove (not shown in the figure) for clamping the fourth clamping block 3212.

As shown in fig. 2, in order to press the suction cup 2 on the elevator door or to separate from the elevator door, a suction cup handle 21 is provided at the tail of the suction cup 2, and when the elevator door inspection base is fixed on the elevator door using the suction cup 2, the suction cup handle 21 is also pushed out of the housing 5 along with the suction cup 2.

As shown in fig. 1, a lifting handle 322 is provided at the upper end of the second connecting column 32, so that the emergency fixing component can slide along the axial direction of the housing 5 through the lifting handle 322.

When the emergency fixing assembly is not in use, the emergency fixing assembly is removed from the annular electromagnet 11, and the housing 5 is screwed to the annular electromagnet 11 (not shown in the figure). When the emergency fixing component is not used, the emergency fixing component is directly detached from the annular electromagnet 11 together with the shell 5.

The implementation process of the embodiment is as follows: when the suction cup 2 is not used, the first limiting plate 321 abuts against the third limiting plate 52, the fourth clamping block 3212 is clamped in the fourth groove, the spring 423 is in a stretching state, and the suction cup 2 is located in the cylindrical hollow cavity of the housing 5. When the sucker 2 needs to be used, the connecting column 3 is pushed towards the opening direction of the sucker 2, so that the fourth clamping block 3212 is separated from the fourth groove, and then the second connecting column 32 is rotated, so that the first limiting plate 321, the second limiting plate 51 and the third limiting plate 52 are not on the same axial plane of the connecting column 3; then, the connecting column 3 is continuously pushed towards the opening direction of the suction cup 2, the first clamping block 412 slides along the sliding groove 42 towards the opening direction of the suction cup 2, meanwhile, the spring 423 is gradually compressed, and the suction cup 2 is gradually pushed out of the annular electromagnet 11. When sucking disc 2 is pushed out annular electromagnet 11 completely, first limiting plate 321 is located between sucking disc 2 and the second limiting plate 51, rotate second spliced pole 32 this moment, drive first limiting plate 321 and use the axis of second spliced pole 32 thereupon to rotate as the center, until first limiting plate 321 and second limiting plate 51 on same axial plane, loosen the power of exerting on second spliced pole 32, the terminal surface of keeping away from sucking disc 2 of first limiting plate 321 and the terminal surface butt that is close to sucking disc 2 of second limiting plate 51 under the effect of spring 423 elasticity, second joint piece 3211 joint is in the third recess simultaneously, the realization is spacing to the sliding distance of emergent fixed subassembly on shell 5, spring 423 still is in compression state this moment, sucking disc 2 and sucking disc handle 21 are all in the outside of shell 5.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a fixing device of elevator door inspection base, is including installing the electro-magnet in the battery bottom, its characterized in that: the electro-magnet is annular electromagnet (11), fixing device is still including connecting emergent fixed subassembly in the cylindrical cavity of annular electromagnet (11), emergent fixed subassembly includes respectively with sucking disc (2) and spliced pole (3) of the coaxial setting of annular electromagnet (11), battery (12) one end is kept away from to the opening orientation of sucking disc (2), the afterbody at sucking disc (2) is connected in spliced pole (3), be provided with on the global of spliced pole (3) and make sucking disc (2) stretch out annular electromagnet (11) or withdraw to sliding subassembly (4) in annular electromagnet (11).

2. The fixing device of a base for elevator door inspection according to claim 1, wherein: the inner peripheral surface of the annular electromagnet (11) is fixedly connected with a shell (5) wrapping the inner peripheral surface of the annular electromagnet, and the emergency fixing component is connected to the inner wall of the shell (5) in a sliding mode through a sliding component (4).

3. The fixing device of a base for elevator door inspection according to claim 2, wherein: the sliding component (4) comprises a clamping piece (41) arranged on the connecting column (3) and a sliding groove (42) arranged on the shell (5) and used for clamping the clamping piece (41) on the shell (5), the clamping piece (41) comprises a first connecting rod (411) fixedly connected to the circumferential surface of the connecting column (3) and a first clamping block (412) fixedly connected to the first connecting rod (411) and far away from one end of the connecting column (3), and the first clamping block (412) radially extends out of a certain distance to two sides of the connecting column (3) on the first connecting rod (411); spout (42) are along its axial setting on shell (5) inner wall, spout (42) include first recess (421) and second recess (422), first recess (421) are seted up from the surface of shell (5) inner wall, second recess (422) are seted up from the tank bottom surface of first recess (421) and are extended to the surface direction of shell (5) along its footpath, second recess (422) are wider than first recess (421).

4. The fixing device of a base for elevator door inspection according to claim 3, wherein: a spring (423) is arranged in the second groove (422), one end of the spring (423) is fixedly connected with one end, close to the opening of the sucker (2), of the second groove (422), and the other end of the spring (423) is fixedly connected with the first clamping block (412); the connecting column (3) comprises a first connecting column (31) fixedly connected with the sucker (2) and a second connecting column (32) rotatably connected to the end face, far away from the sucker (2), of the first connecting column (31), and the sliding assembly (4) is arranged between the first connecting column (31) and the shell (5); there is first limiting plate (321) along its radial rigid coupling on the outer peripheral face of keeping away from sucking disc (2) one end of second spliced pole (32), there is second limiting plate (51) along its radial rigid coupling on the inner wall of shell (5), second limiting plate (51) lie in between sucking disc (2) and first limiting plate (321) on the axial of sucking disc (2), the long sum of pole of first limiting plate (321) and second limiting plate (51) is greater than the radial distance between shell (5) inner wall and second spliced pole (32) outer wall, first limiting plate (321) and second limiting plate (51) set up on the different axial planes of shell (5).

5. The fixing device of a base for elevator door inspection according to claim 4, wherein: on the inner wall of shell (5), keep away from one side rigid coupling of sucking disc (2) at second limiting plate (51) and have third limiting plate (52), in the axial of sucking disc (2), first limiting plate (321) are located between second limiting plate (51) and third limiting plate (52).

6. The fixing device of a base for elevator door inspection according to claim 4, wherein: the surface of the first limiting plate (321) close to one end of the shell (5) and far away from the sucker (2) is fixed with a second clamping block (3211), and the surface of the second limiting plate (51) close to the sucker (2) is provided with a third clamping groove for clamping the second clamping block (3211).

7. The fixing device of a base for elevator door inspection according to claim 1, wherein: the tail part of the sucker (2) is provided with a sucker handle (21).

8. The fixing device of a base for elevator door inspection according to claim 4, wherein: the upper end of the second connecting column (32) is provided with a lifting handle (322).

9. The fixing device of a base for elevator door inspection according to claim 2, wherein: the shell (5) is in threaded connection with the annular electromagnet (11).