A sliding connection device for installing an elevator

Abstract

The present invention provides a sliding connection device for installing an elevator, comprising a first steel end plate, a second steel end plate, a steel connecting plate, and a steel slide plate. The first steel end plate is used to be fixedly connected to the beams and columns of an existing building. The steel connecting plate connects the first steel end plate and the second steel end plate. The steel slide plate is sleeved on the second steel end plate and can slide up and down relative to the second steel end plate. The steel slide plate comprises a main plate, a first side plate, a second side plate, a first roller, and a second roller. The main plate is used to be fixedly connected to the hoistway structure of the installed elevator. The first roller, the second roller, and the main plate are respectively located on the front and rear sides of the second steel end plate. The first side plate and the second side plate abut the left and right sides of the second steel end plate. When the installed elevator sinks, the steel slide plate is driven to descend relative to the second steel end plate fixedly connected to the existing building. Therefore, when the installed elevator hoistway structure sinks, the existing building is not affected and will not be damaged by the sinking of the installed elevator hoistway structure.

Description

Technical Field

[0001] The present invention relates to the field of connection between an existing building and a retrofitted elevator, and in particular to a sliding connection device for retrofitting an elevator. Background Art

[0002] According to literature searches and engineering practice surveys, the vast majority of existing buildings prefer steel frame hoistways when adding elevators. This is mainly due to the fact that steel structures are lightweight, high-strength, have good seismic performance, a short construction period, are recyclable, and have guaranteed factory-made quality. According to current engineering practice, based on the requirements for fire evacuation space and to reduce the impact on the original building, most elevators added to existing buildings are arranged separately from the original building, and the vertical forces are borne by an independent foundation. However, due to the small planar area of ​​the elevator hoistway, the large height-to-width ratio of the structure, and the relatively small lateral stiffness, the added elevator hoistway structure needs to be connected to the beams or columns of the existing building on each floor to limit lateral displacement. The added elevator hoistway structure is usually connected to the existing building through anchor bolts or embedded rebar, and the nodes are rigid nodes.

[0003] This rigid joint plays a role in restraining lateral displacement and settlement of the elevator shaft. However, since the existing building has been built and in use for many years, its foundation settlement has tended to be stable. The elevator installation is a new building, and will experience varying degrees of settlement after completion. If rigid joints were used to connect the elevator shaft structure to the existing building, settlement of the added elevator shaft structure could cause the joints to tear, causing varying degrees of damage to the existing building. Summary of the Invention

[0004] Based on this, the main purpose of the present invention is to provide a sliding connection device for installing an elevator that can limit the lateral displacement of the installed elevator shaft structure and avoid damage to existing buildings caused by the settlement of the installed elevator shaft structure.

[0005] To achieve the above object, the present invention provides a sliding connection device for installing an elevator, comprising:

[0006] The first steel end plate is used for fixed connection with the beams and columns of the existing building;

[0007] Second steel end plate;

[0008] a steel connecting plate, one end of which is fixedly connected to a side of the first steel end plate facing away from the existing building, and the other end of which is fixedly connected to the second steel end plate; and

[0009] A steel slide plate is sleeved on the second steel end plate, and the steel slide plate can slide up and down relative to the second steel end plate. The steel slide plate includes a main board, a first side plate and a second side plate spaced apart on the main board, a first roller and a second roller. The first side plate and the second side plate are arranged opposite to each other, the first roller is rotatably arranged on the side of the first side plate facing the second side plate, and the second roller is rotatably arranged on the side of the second side plate facing the first side plate. The main board is used to be fixedly connected to the elevator shaft structure. The first roller, the second roller and the main board are respectively located on the front and rear sides of the second steel end plate, and the first side plate and the second side plate abut against the left and right sides of the second steel end plate.

[0010] Preferably, the steel slide plate further includes a first column and a second column, the first column is arranged on the side of the first side plate facing the second side plate, the second column is arranged on the side of the second side plate facing the first side plate, the first roller is rotatably arranged on the first column, and the second roller is rotatably arranged on the second column.

[0011] Preferably, the first steel end plate is fixedly connected to the beams and columns of the existing building through a plurality of anchor bolts.

[0012] Preferably, the main board is welded to the additional elevator shaft structure, or the main board is fixedly connected to the additional elevator shaft structure by a plurality of bolts.

[0013] Preferably, the sliding connection device for installing an elevator also includes a settlement monitoring structure, which is arranged on the second steel end plate. The settlement monitoring structure is used to monitor the moving distance of the steel slide relative to the second steel end plate in real time to obtain the real-time settlement amount of the installed elevator shaft structure.

[0014] Preferably, the settlement monitoring structure includes a potentiometer displacement sensor, a data acquisition instrument and a terminal device, the potentiometer displacement sensor is electrically connected to the data acquisition instrument, the data acquisition instrument is communicatively connected to the terminal device, the potentiometer displacement sensor is arranged on the second steel end plate, and the movable brush of the potentiometer displacement sensor is connected to the steel slide plate, the movement of the steel slide plate relative to the second steel end plate will drive the movable brush of the potentiometer displacement sensor to extend and retract, thereby causing the resistance value of the potentiometer moving end of the potentiometer displacement sensor to change, the potentiometer displacement sensor is used to send a resistance change signal to the data acquisition instrument in real time, the data acquisition instrument obtains the moving distance of the steel slide plate relative to the second steel end plate based on the resistance change, the data acquisition instrument is also used to send the obtained moving distance of the steel slide plate relative to the second steel end plate to the terminal device, the terminal device is used to record and display the descending distance of the steel slide plate relative to the second steel end plate in real time.

[0015] Preferably, the terminal device is set with a sinking critical threshold and / or a speed reduction critical threshold, and the terminal device is used to issue an early warning when the descending distance of the steel slide relative to the second steel end plate is greater than the sinking critical threshold, and / or the terminal device is used to issue an early warning when the descending rate of the steel slide relative to the second steel end plate is greater than the speed reduction critical threshold.

[0016] Preferably, the settlement monitoring structure further comprises an adsorption base, the adsorption base is adsorbed on the second steel end plate, and the potentiometer-type displacement sensor is arranged on the adsorption base.

[0017] Preferably, a horizontal scale line is engraved on the side of the second steel end plate facing away from the first steel end plate, and the horizontal scale line can be used to read the lowering distance of the steel slide relative to the second steel end plate, thereby obtaining the settlement amount of the installed elevator shaft structure.

[0018] Preferably, the sliding connection device for installing an elevator also includes a dial indicator, which is arranged on the second steel end plate, and the probe of the dial indicator is against the bottom wall of the main board. The dial indicator is used to measure the descending distance of the steel slide relative to the second steel end plate to obtain the settlement of the installed elevator shaft structure.

[0019] Advantages of the technical solution of the present invention: In the present invention, a sliding connection between the existing building and the added elevator shaft structure is achieved by installing a sliding connection device for an elevator. The first steel end plate is rigidly fixed to the beam column of the existing building, and the main plate of the steel slide is rigidly fixed to the added elevator shaft structure. The steel slide can slide up and down relative to the second steel end plate. Therefore, when the added elevator shaft structure settles, the added elevator shaft structure will drive the steel slide down relative to the second steel end plate to which the existing building is fixed. Therefore, when the added elevator shaft structure settles, the existing building is not affected and will not be damaged by the settlement of the added elevator shaft structure. The sliding connection device for an elevator achieves a sliding connection between the existing building and the added elevator shaft structure, so that when the added elevator shaft structure settles, the connection node will not tear. In addition, the first side plate and the second side plate abut the left and right sides of the second steel end plate, preventing the steel slide from lateral displacement relative to the second steel end plate, thereby limiting the lateral displacement of the added elevator shaft structure fixed to the second steel end plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the devices shown in these drawings without paying any creative work.

[0021] Figure 1 This is a schematic diagram of the structure of a sliding connection device for installing an elevator;

[0022] Figure 2 A schematic diagram of the structure for connecting the additional elevator to the existing building using a sliding connection device;

[0023] Figure 3 A top view of a sliding connection device for connecting the additional elevator to the existing building;

[0024] Figure 4 This is a schematic diagram of the coordination between the settlement monitoring structure and the steel slide plate;

[0025] Figure 5 is a structural schematic diagram of the second steel end plate;

[0026] Figure 6 This is a schematic diagram of the cooperation between the dial indicator and the steel slide;

[0027] Among them, 001, installation of a sliding connection device for elevators; 100, first steel end plate; 110, anchor bolt; 200, steel connecting plate; 300, second steel end plate; 310, horizontal scale line; 400, steel slide plate; 410, main board; 420, first side plate; 430, second side plate; 440, first roller; 450, second roller; 460, first column; 470, second column; 500, settlement monitoring structure; 510, potentiometer-type displacement sensor; 520, data acquisition instrument; 530, terminal equipment; 600, adsorption base; 700, dial indicator.

[0028] 1. Install elevator shaft structure; 11. Install elevator shaft structure connectors; 2. Existing buildings; 22. Beams and columns of existing buildings.

[0029] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are intended only to explain the relative positional relationships and movement of various components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. Furthermore, the terms "first," "second," etc., used in this invention are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include at least one of these features. Furthermore, the term "and / or" throughout this text encompasses three solutions. For example, using A and / or B as an example, this includes solution A, solution B, and solutions where both A and B are satisfied. Furthermore, the technical solutions of various embodiments may be combined, but only if they are achievable by a person of ordinary skill in the art. If a combination of technical solutions contradicts or is unachievable, such combination shall be deemed non-existent and outside the scope of protection claimed by this invention.

[0032] like Figure 1-3 As shown, the present invention provides a sliding connection device 001 for installing an elevator, comprising a first steel end plate 100, a second steel end plate 300, a steel connecting plate 200 and a steel slide plate 400. The first steel end plate 100 is used to be fixedly connected to the beam column 22 of the existing building. One end of the steel connecting plate 200 is fixedly connected to the side of the first steel end plate 100 away from the existing building 2, and the other end of the steel connecting plate 200 is fixedly connected to the second steel end plate 300. The steel slide plate 400 is sleeved on the second steel end plate 300 and can slide up and down relative to the second steel end plate 300. The steel slide plate 400 includes a main plate 410 and a spacer arranged on the main plate 410. The first side plate 420 and the second side plate 430, the first roller 440 and the second roller 450 on the upper surface are arranged opposite to each other. The first roller 440 is rotatably arranged on the side of the first side plate 420 facing the second side plate 430, and the second roller 450 is rotatably arranged on the side of the second side plate 430 facing the first side plate 420. The main board 410 is used to be fixedly connected to the additional elevator shaft structure 1. The first roller 440 and the second roller 450 and the main board 410 are respectively located on the front and rear sides of the second steel end plate 300, and the first side plate 420 and the second side plate 430 are against the left and right sides of the second steel end plate 300.

[0033] In the present invention, a sliding connection is achieved between the existing building 2 and the added elevator shaft structure 1 by installing a sliding connection device 001 for elevators. The first steel end plate 100 is rigidly fixedly connected to the beam column 22 of the existing building, and the main plate 410 of the steel slide plate 400 is rigidly fixedly connected to the added elevator shaft structure 1. The steel slide plate 400 can slide up and down relative to the second steel end plate 300. Therefore, when the added elevator shaft structure 1 settles, the added elevator shaft structure 1 will drive the steel slide plate 400 to descend relative to the second steel end plate 300 fixedly connected to the existing building 2. Therefore, when the added elevator shaft structure 1 settles, the added elevator shaft structure 1 will drive the steel slide plate 400 to descend relative to the second steel end plate 300 fixedly connected to the existing building 2. Therefore, when the added elevator shaft structure 1 settles, the existing building 2 is not affected and will not be damaged by the settlement of the added elevator shaft structure 1. The sliding connection device 001 for elevators achieves a sliding connection between the existing building 2 and the added elevator shaft structure 1, so that when the added elevator shaft structure 1 settles, the connection nodes will not tear. In addition, the first side plate 420 and the second side plate 430 abut against the left and right sides of the second steel end plate 300, so that the steel slide plate 400 cannot be laterally displaced relative to the second steel end plate 300, thereby limiting the lateral displacement of the installed elevator shaft structure 1 fixedly connected to the second steel end plate 300.

[0034] In this embodiment, the main plate 410 is fixedly connected to the elevator shaft structure 1 on the side facing away from the first side plate 420 and the second side plate 430. The first roller 440 and the second roller 450 are located on the side of the second steel end plate 300 facing away from the elevator shaft structure 1. The first steel end plate 100, the second steel end plate 300, and the steel connecting plate 200 are welded together, and the top view of the welded parts forms an "I" shape.

[0035] Furthermore, the additional elevator shaft structure 1 has an additional elevator shaft structure connector 11 , and the main board 410 is rigidly fixedly connected to the additional elevator shaft structure connector 11 .

[0036] refer to Figure 1 The steel slide 400 further includes a first column 460 and a second column 470. The first column 460 is disposed on the side of the first side plate 420 facing the second side plate 430, and the second column 470 is disposed on the side of the second side plate 430 facing the first side plate 420. The first roller 440 is rotatably disposed on the first column 460, and the second roller 450 is rotatably disposed on the second column 470. Specifically, the arrangement of the first column 460 and the second column 470 makes the installation of the first roller 440 and the second roller 450 more convenient.

[0037] refer to Figure 1-2 The first steel end plate 100 is fixedly connected to the beam column 22 of the existing building through a plurality of anchor bolts 110. Specifically, a reliable and rigid connection between the first steel end plate 100 and the existing building 2 can be achieved through the plurality of anchor bolts 110.

[0038] Specifically, the main board 410 is welded to the additional elevator shaft structure 1, or the main board 410 is fixedly connected to the additional elevator shaft structure 1 by a plurality of bolts.

[0039] refer to Figure 4 The sliding connection device 001 for installing an elevator further includes a settlement monitoring structure 500. The settlement monitoring structure 500 is provided on the second steel end plate 300. The settlement monitoring structure 500 is used to monitor in real time the movement distance of the steel slide plate 400 relative to the second steel end plate 300, so as to obtain the real-time settlement amount of the installed elevator shaft structure 1. In this embodiment, since the installed elevator shaft structure 1 will undergo settlement, the settlement monitoring structure 500 monitors in real time the distance the steel slide plate 400 descends relative to the second steel end plate 300. Specifically, the distance the steel slide plate 400 descends relative to the second steel end plate 300 is the distance the installed elevator shaft structure 1 descends relative to the existing building 2, that is, the settlement amount of the installed elevator shaft structure 1.

[0040] refer to Figure 4 The settlement monitoring structure 500 includes a potentiometer displacement sensor 510, a data acquisition instrument 520 and a terminal device 530. The potentiometer displacement sensor 510 is electrically connected to the data acquisition instrument 520, and the data acquisition instrument 520 is in communication with the terminal device 530. The potentiometer displacement sensor 510 is arranged on the second steel end plate 300, and the movable brush of the potentiometer displacement sensor 510 is connected to the steel slide 400. The movement of the steel slide 400 relative to the second steel end plate 300 will drive the movable brush of the potentiometer displacement sensor 510 to expand and contract, thereby The resistance value of the movable end of the potentiometer of the potentiometer displacement sensor 510 changes. The potentiometer displacement sensor 510 is configured to send a resistance change signal in real time to a data acquisition device 520. The data acquisition device 520 determines the distance traveled by the steel slide 400 relative to the second steel end plate 300 based on the resistance change. The data acquisition device 520 is further configured to transmit the acquired distance traveled by the steel slide 400 relative to the second steel end plate 300 to a terminal device 530. The terminal device 530 is configured to record and display in real time the distance the steel slide 400 has descended relative to the second steel end plate 300. In this embodiment, the movable brush of the potentiometer displacement sensor 510 is connected to the mainboard 410 of the steel slide 400. The data terminal device 530 is a computer or a mobile phone.

[0041] The potentiometer-type displacement sensor 510 uses a potentiometer element to convert mechanical displacement into a resistance or voltage output that is linearly or functionally related to the displacement. The displacement of an object causes a change in the resistance of the potentiometer's moving end. The change in resistance reflects the magnitude of the displacement, and whether the resistance increases or decreases indicates the direction of the displacement. The potentiometer-type displacement sensor 510 features a simple structure, a large output signal, ease of use, and low cost. In this embodiment, when the elevator shaft structure 1 settles, the steel slide 400 is driven downward relative to the second steel end plate 300. At this time, the steel slide 400 presses down on the movable brush, causing it to retract, thereby causing a change in the resistance of the potentiometer's moving end. Because the extension and contraction of the movable brush (i.e., the movement of the steel slide 400 relative to the second steel end plate 300) is functionally related to the resistance of the potentiometer's moving end, the change in resistance of the potentiometer's moving end can be used to directly determine the movement of the steel slide 400 relative to the second steel end plate 300, and thus the settlement of the elevator shaft structure 1.

[0042] Furthermore, the terminal device 530 is configured with a sinking threshold. The terminal device 530 is configured to issue an alert when the distance the steel slide plate 400 descends relative to the second steel end plate 300 exceeds the sinking threshold. Specifically, the distance the steel slide plate 400 descends relative to the second steel end plate 300 represents the amount of settlement of the elevator shaft structure 1 after installation. In other words, when the settlement exceeds the sinking threshold, the terminal device 530 automatically issues an alert.

[0043] Furthermore, the terminal device 530 is also configured with a critical deceleration threshold. The terminal device 530 is further configured to issue a warning when the rate of descent of the steel slide 400 relative to the second steel end plate 300 exceeds the critical deceleration threshold. Specifically, the rate of descent of the steel slide 400 relative to the second steel end plate 300 represents the settlement rate of the elevator shaft structure 1. In other words, when the settlement rate exceeds the critical deceleration threshold, the terminal device 530 automatically issues a warning.

[0044] refer to Figure 4 The settlement monitoring structure 500 further includes an adsorption base 600, which is adsorbed and disposed on the second steel end plate 300, and the potentiometer displacement sensor 510 is disposed on the adsorption base 600. Specifically, the adsorption base 600 is a magnetic adsorption base 600, which can be directly adsorbed on the second steel end plate 300.

[0045] refer to Figure 5Horizontal scale lines 310 are engraved on the side of the second steel end plate 300 facing away from the first steel end plate 100. The horizontal scale lines 310 can be used to read the distance the steel slide plate 400 has descended relative to the second steel end plate 300, thereby obtaining the settlement of the additional elevator shaft structure 1. Specifically, the horizontal scale lines 310 are used to assist in reading the settlement of the additional elevator shaft structure 1. The horizontal scale lines 310 can be used to directly and conveniently read the settlement of the additional elevator shaft structure 1.

[0046] refer to Figure 6 The sliding connection device 001 for installing an elevator also includes a dial indicator 700. The dial indicator 700 is arranged on the second steel end plate 300, and the probe of the dial indicator 700 is against the bottom wall of the main board 410. The dial indicator 700 is used to measure the descending distance of the steel slide plate 400 relative to the second steel end plate 300 to obtain the settlement amount of the installed elevator shaft structure 1.

[0047] Specifically, the initial settlement of the elevator shaft structure 1 is large, and the subsequent settlement tends to be stable. In the early stage, the settlement data is recorded and detected in real time by the settlement monitoring structure 500. In addition, the settlement threshold and the deceleration threshold can be set. When the settlement or settlement rate exceeds the threshold, an automatic warning is issued. When the settlement of the elevator shaft structure 1 is not obvious in the later stage, for the sake of cost saving, the settlement of the elevator structure is checked by manual regular inspection. At this time, the settlement of the elevator shaft structure 1 is read by the horizontal scale line 310 or the dial indicator 700. In this embodiment, the potentiometer displacement sensor 510 is initially set on the adsorption base 600. Later, the potentiometer displacement sensor 510 is removed from the adsorption base 600, and then the dial indicator 700 is set on the adsorption base 600.

[0048] The material of each structure of the sliding connection device 001 for installing an elevator of the present invention is steel.

[0049] The present invention can record and detect settlement data in real time through the settlement monitoring structure 500. Compared with the regular detection of settlement data in the prior art, the present invention can obtain settlement data in a timely manner, so that the status of the installed elevator shaft structure 1 can be obtained at any time, avoiding the situation where an emergency occurs in the installed elevator shaft structure 1 between two regular detections and the inability to obtain information. The settlement monitoring structure 500 can be used to directly view the settlement data through the terminal device 530, without the need for manual on-site inspections. In addition, the terminal device 530 sets a settlement threshold and a deceleration threshold, and automatically issues an alarm when the settlement amount or settlement rate exceeds the threshold. Therefore, even if the terminal device 530 is not checked, it can be immediately known when a situation occurs in the installed elevator shaft structure 1.

[0050] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. All equivalent device transformations made using the contents of the present invention's description and drawings, or direct / indirect applications in other related technical fields within the inventive concept of the present invention are included in the patent protection scope of the present invention.

Claims

1. A sliding connection device for installing an elevator, characterized in that: include: The first steel end plate is used for fixed connection with the beams and columns of the existing building; Second steel end plate; a steel connecting plate, one end of the steel connecting plate being fixedly connected to a side of the first steel end plate facing away from the existing building, and the other end of the steel connecting plate being fixedly connected to the second steel end plate, the first steel end plate, the second steel end plate, and the steel connecting plate forming an I-shaped structure; and A steel slide is sleeved on the second steel end plate, and the steel slide can slide up and down relative to the second steel end plate. The steel slide includes a main board, a first side plate and a second side plate spaced apart on the main board, a first roller and a second roller, the first side plate and the second side plate are arranged opposite to each other, the first roller is rotatably arranged on the side of the first side plate facing the second side plate, and the second roller is rotatably arranged on the side of the second side plate facing the first side plate, the main board is used to be fixedly connected to the installed elevator shaft structure, the first roller and the second roller and the main board are respectively located on the front and rear sides of the second steel end plate, the first roller and the second roller are located on the side of the second steel end plate away from the installed elevator shaft structure, and the first side plate and the second side plate press against the left and right sides of the second steel end plate.

2. The sliding connection device for installing an elevator according to claim 1, characterized in that: The steel slide plate also includes a first column and a second column, the first column is arranged on the side of the first side plate facing the second side plate, the second column is arranged on the side of the second side plate facing the first side plate, the first roller is rotatably arranged on the first column, and the second roller is rotatably arranged on the second column.

3. The sliding connection device for retrofitting an elevator according to claim 1, wherein: The first steel end plate is fixedly connected to the beams and columns of the existing building through a plurality of anchor bolts.

4. The sliding connection device for retrofitting an elevator according to claim 1, wherein: The main board is welded to the additional elevator shaft structure, or the main board is fixedly connected to the additional elevator shaft structure through a plurality of bolts.

5. The sliding connection device for retrofitting an elevator according to claim 1, wherein: The sliding connection device for installing an elevator also includes a settlement monitoring structure, which is arranged on the second steel end plate. The settlement monitoring structure is used to monitor the moving distance of the steel slide relative to the second steel end plate in real time to obtain the real-time settlement amount of the installed elevator shaft structure.

6. The sliding connection device for retrofitting an elevator according to claim 5, characterized in that: The settlement monitoring structure includes a potentiometer displacement sensor, a data acquisition instrument and a terminal device. The potentiometer displacement sensor is electrically connected to the data acquisition instrument, and the data acquisition instrument is communicatively connected to the terminal device. The potentiometer displacement sensor is arranged on the second steel end plate, and the movable brush of the potentiometer displacement sensor is connected to the steel slide plate. The movement of the steel slide plate relative to the second steel end plate will drive the movable brush of the potentiometer displacement sensor to extend and retract, thereby causing the resistance value of the potentiometer moving end of the potentiometer displacement sensor to change. The potentiometer displacement sensor is used to send a resistance change signal to the data acquisition instrument in real time. The data acquisition instrument obtains the moving distance of the steel slide plate relative to the second steel end plate based on the resistance change. The data acquisition instrument is also used to send the obtained moving distance of the steel slide plate relative to the second steel end plate to the terminal device. The terminal device is used to record and display the descending distance of the steel slide plate relative to the second steel end plate in real time.

7. The sliding connection device for retrofitting an elevator according to claim 6, wherein: The terminal device is set with a sinking critical threshold and / or a speed reduction critical threshold, and the terminal device is used to issue an early warning when the descending distance of the steel slide relative to the second steel end plate is greater than the sinking critical threshold, and / or the terminal device is used to issue an early warning when the descending rate of the steel slide relative to the second steel end plate is greater than the speed reduction critical threshold.

8. The sliding connection device for retrofitting an elevator according to claim 6, wherein: The settlement monitoring structure further includes an adsorption base, which is adsorbed on the second steel end plate, and the potentiometer-type displacement sensor is arranged on the adsorption base.

9. The sliding connection device for retrofitting an elevator according to claim 1, wherein: A horizontal scale line is engraved on the side of the second steel end plate facing away from the first steel end plate. The horizontal scale line can be used to read the lowering distance of the steel slide relative to the second steel end plate, thereby obtaining the settlement amount of the installed elevator shaft structure.

10. The sliding connection device for retrofitting an elevator according to claim 1, wherein: The sliding connection device for installing an elevator also includes a dial indicator, which is arranged on the second steel end plate, and the probe of the dial indicator is against the bottom wall of the main board. The dial indicator is used to measure the descending distance of the steel slide relative to the second steel end plate to obtain the settlement of the installed elevator shaft structure.

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