Detachable assembly for sealing protection of elevator shaft

Abstract

The utility model discloses a detachable component for sealing protection of an elevator shaft, which comprises a plurality of fixing parts pre-buried at the edge of an elevator shaft opening, telescopic sleeves are connected between the fixing parts at two sides of the elevator shaft opening, the length of each telescopic sleeve is fixed through a positioning pin, and a sealing template is laid above each telescopic sleeve. According to the technical scheme, reinforcing steel bars do not need to be embedded, relevant complex stress calculation does not need to be conducted, workers do not need to depend on themselves, scaffolds or cantilever I-shaped steel structures do not need to be erected, only the fixing pieces need to be simply embedded when the concrete floorboards on the periphery of the elevator shaft are poured, then the telescopic sleeves are connected between the fixing pieces, and the concrete floorboards can be conveniently and rapidly poured. And then laying a closed template. According to the technical scheme, the structure is simple, manufacturing, assembling and disassembling are convenient, universality is high, the application range is wide, turnover use is convenient, the risk coefficient is low in the assembling, using and disassembling processes, and particularly, safety and reliability are achieved in the using process.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator shaft safety protection, in particular to a detachable assembly for elevator shaft sealing protection. Background Art

[0002] There are three main ways to protect elevator shafts with existing technology. The first is to use scaffolding for protection, the second is to embed steel bars for protection when pouring the elevator shaft, and the third is to use a cantilevered I-beam structure for protection.

[0003] Among them, the more traditional and simple process structure method is to use scaffolding and cantilevered I-beam structure. These two methods are relatively safe, but the labor and material costs are high, the rental is high, the later scaffolding dismantling process and the I-beam dismantling process are complicated, and there are safety hazards and other problems. For example, the invention patent application with the patent application publication date of 2024.04.09 and the patent application publication number of CN 117846272 A discloses a telescopic combined elevator shaft protection platform and its construction method. The platform includes a main beam, which is made of double rows of I-beams welded together through an intermediate cross brace. A telescopic claw arm is installed at the front end, a fixed frame is installed at the rear end, a universal pedal is laid in the middle of the top surface, and top pedals and side pedals are arranged in front and back on the sides of the top surface; the telescopic claw arm can be pulled out and placed in the square tube at the front end of the main beam, so that the main beam assembly can be adjusted as a whole to adapt to different shafts. Although this technical solution can adapt to different sizes of elevator shafts and a set of protective platform equipment can be used in multiple projects to reduce material waste, it is a modified cantilever I-beam structure for protecting the elevator shaft and the above-mentioned problems still exist.

[0004] However, using pre-embedded steel bars for protection is difficult to calculate, and pre-embedded steel bars are significantly affected by the workers' skill level and sense of responsibility, which can result in the quality and protective effect of the pre-embedded steel bars being unreliable. For example, the invention patent with an application publication date of January 19, 2024, and application publication number CN 117418711 A discloses a method and device for protecting elevator shafts and ventilation shafts. The method uses a measuring tool to accurately measure the dimensions of the elevator shaft to determine the required horizontal mesh dimensions. The position and spacing of the horizontal meshes are planned based on the measurement results and safety requirements. Fixed points are then marked on the pre-embedded steel bars in the elevator shaft. A steel cable is then passed around the pre-embedded steel bars at the designated fixed points corresponding to the flattened horizontal mesh. The cable is then passed back around the fixed points of the horizontal mesh and secured to another fixed assembly. The cable is then tightened by rotating the tightening assembly. The anti-slip assembly and the tightening assembly are linked, so that if the tightening assembly is driven to rotate in the opposite direction by the stress of the steel cable, the anti-slip assembly can promptly brake the tightening assembly to prevent it from reversing. Although this technical solution provides a protection method different from the traditional one, it is still an improvement based on the embedded steel bars. Moreover, the improved protection method requires the use of a newly designed steel cable tightening component, which not only has a complex structure but also has high production, application and maintenance costs.

[0005] Therefore, it is necessary to design an elevator shaft sealing and protection assembly with simple structure, convenient operation and high safety.

[0006] It should be noted that the above technical information is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as an admission or suggestion in any form that the above technical information constitutes prior art already known to those skilled in the art. Utility Model Content

[0007] In response to the deficiencies in the above-mentioned background technology, the present invention proposes a detachable assembly for enclosing and protecting an elevator shaft, which solves the technical problem that the existing protection methods of the elevator shaft are difficult to achieve simple structure, convenient operation and high safety at the same time.

[0008] The technical solution of this application is:

[0009] A detachable assembly for enclosing and protecting an elevator shaft comprises a plurality of fixings embedded in the edge of an elevator shaft opening, a telescopic sleeve being connected between the fixings on both sides of the elevator shaft opening, the length of the telescopic sleeve being fixed by a positioning pin, and a closed formwork being laid above each of the telescopic sleeves. This technical solution does not require embedded steel bars, does not require complex force calculations, does not rely on the workers' own skill level and sense of responsibility, and does not require the erection of scaffolding or cantilevered I-beam structures. It only requires the simple embedding of fixings when pouring the concrete floor panels around the elevator shaft, and then connecting the telescopic sleeves between the fixings to form a reliable support frame, and then laying the closed formwork on the support frame. Therefore, this technical solution is not only simple in structure and easy to manufacture, assemble and dismantle, but also highly versatile and applicable, and is easy to use between floors, between buildings, and between construction projects. More importantly, it has a low risk factor during assembly, use and disassembly, and is particularly safe and reliable during use.

[0010] Based on the above technical solution, as a preferred technical solution, the fixings on the same side of the elevator shaft opening are pre-embedded in the concrete floor slab at equal intervals, and the fixings on both sides of the elevator shaft opening are arranged symmetrically about the diagonal of the elevator shaft opening. This technical solution provides a preferred arrangement of the fixings, which are arranged symmetrically about the diagonal of the elevator shaft opening, that is, the axial direction of the fixings is parallel to the diagonal, and the axis of the telescopic sleeve is also parallel to the diagonal. In addition, other arrangements can also be adopted, such as random distribution, as long as they can safely and reliably support the closed formwork.

[0011] On the basis of the above technical solution, as a preferred technical solution, the fixings on the same side of the elevator shaft opening are pre-embedded on the concrete floor panel at equal intervals, and the fixings on both sides of the elevator shaft opening are symmetrically arranged about the center line of the elevator shaft opening. This technical solution provides a preferred arrangement of the fixings, which are symmetrically arranged about the center line of the elevator shaft opening, that is, the axial direction of the fixings is parallel to the center line, and the axis of the telescopic sleeve is also parallel to the center line. The center line can be the center line of the length direction of the elevator shaft opening or the center line of the width direction of the elevator shaft opening. In addition, the fixings, i.e., the telescopic sleeves, can also be arranged in both the length direction and the width direction of the elevator shaft opening. They only need to be arranged in layers up and down, which can further improve safety.

[0012] Based on the above technical solution, as a preferred technical solution, the fixing member is a pre-embedded sleeve, and the ends of the telescopic sleeve respectively plug into the pre-embedded sleeves on both sides of the elevator shaft opening. The outer ends of the pre-embedded sleeves can be flush with the inner wall of the elevator shaft opening or extend beyond the inner wall of the elevator shaft opening. Alternatively, as another embodiment, the fixing member is a pre-embedded support rod, and the outer ends of the pre-embedded support rod extend beyond the inner wall of the elevator shaft opening, and the ends of the telescopic sleeve respectively socket into the pre-embedded support rods on both sides of the elevator shaft opening.

[0013] On the basis of the above technical solution, as a preferred technical solution, the telescopic sleeve includes an outer sleeve and an inner sleeve respectively plugged into the fixing parts on both sides of the elevator shaft opening, and the outer sleeve and the inner sleeve are plugged into each other at one end close to each other.

[0014] Based on the above technical solution, as a preferred technical solution, the ends of the outer sleeve and the inner sleeve where they are connected are provided with corresponding first positioning holes, and the positioning pins are engaged with the first positioning holes. In other words, this technical solution only requires the positioning pins to achieve relative fixation between the outer sleeve and the inner sleeve, thereby maintaining a fixed length of the telescopic sleeve and preventing it from falling off the fixing members at both ends.

[0015] Based on the above technical solution, as a preferred technical solution, when the outer end of the embedded sleeve is flush with the edge of the concrete floor panel, the outer sleeve has a plurality of second positioning holes at the end facing away from the inner sleeve. Second positioning pins are inserted into the second positioning holes and engage with the edge of the concrete floor panel. This technical solution adds the second positioning pins, which not only secure the telescopic sleeve relative to the fixing member via the positioning pins but also further improve the reliability of positioning.

[0016] As another preferred technical solution, when the outer end of the embedded sleeve extends out of the concrete floor panel, a plurality of matching third positioning holes are formed in the extended portion of the embedded sleeve and the end of the outer sleeve facing away from the inner sleeve, and third positioning pins are inserted into and engage with the third positioning holes. This technical solution not only has the same technical effects as the above technical solution, but also allows the outer sleeve to be first fixed to the fixing member during installation using the third positioning pins before the inner sleeve is assembled, further improving the safety and convenience of the construction process.

[0017] Based on the above technical solution, as a preferred technical solution, when the outer end of the embedded sleeve is flush with the edge of the concrete floor panel, the inner sleeve has a plurality of fourth positioning holes formed at the end facing away from the outer sleeve. Fourth positioning pins engage with the fourth positioning holes and engage with the edge of the concrete floor panel. This technical solution adds the fourth positioning pin, which not only secures the telescopic sleeve relative to the fixing member via the positioning pin but also further improves positioning reliability.

[0018] As another preferred technical solution, when the outer end of the embedded sleeve extends out of the concrete floor panel, the protruding portion of the embedded sleeve and the end of the inner sleeve facing away from the outer sleeve are provided with a plurality of fifth positioning holes that match each other, and a fifth positioning pin is plugged into and matched with the fifth positioning hole. This technical solution not only has the same technical effect as the above technical solution, but also can use the fifth positioning pin to first fix the inner sleeve during the installation process, first fix the inner sleeve on the fixing piece, and then assemble the outer sleeve, further improving the safety and convenience of the construction process. Alternatively, the outer sleeve is first fixed on the fixing piece on one side, and the inner sleeve is fixed on the fixing piece on the other side, and then the limit of the outer sleeve or the inner sleeve is loosened to adjust the relative position between the inner sleeve and the outer sleeve, and finally the positioning pin is fixed.

[0019] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0020] The present invention provides a detachable assembly for the closed protection of the elevator shaft, which does not require pre-embedded steel bars, nor does it require related complex force calculations, nor does it rely on the workers' own skill level and sense of responsibility, and does not require the erection of scaffolding or cantilevered I-beam structures. It only requires simple pre-embedded fixings when pouring the concrete floor panels around the elevator shaft, and then connecting telescopic sleeves between the fixings to form a reliable support frame, and then laying the closed formwork on the support frame. Therefore, the present technical solution is not only simple in structure and easy to manufacture, assemble and dismantle, but also has strong versatility and a wide range of applications, and is easy to use between floors, between buildings, and between construction projects. More importantly, the risk factor is low during assembly, use and disassembly, and it is very safe and reliable during use. The safety protection assembly provided by the present invention can be mass-produced and installed in the factory, and only needs to be assembled and installed on site. Except for the pre-embedded fixings, all other components can be recycled and reused, which greatly improves construction efficiency and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. 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 these drawings without paying any creative work.

[0022] Figure 1 This is a top view of the elevator shaft opening after pre-embedded fixings;

[0023] Figure 2 For Figure 1 The state diagram after the telescopic sleeve is installed on the foundation;

[0024] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;

[0025] Figure 4 for Figure 2 A partial enlarged view of point B in the middle;

[0026] Figure 5 for Figure 2 A partial enlarged view of point C in the middle;

[0027] Figure 6 For Figure 2 The state diagram after laying the closed template on the foundation.

[0028] Description of Figure Numbers:

[0029] Elevator shaft opening 1;

[0030] Fixing 2;

[0031] Telescopic sleeve 3, positioning pin 30, outer sleeve 31, inner sleeve 32, first positioning hole 33, second positioning hole 34, second positioning pin 35, fourth positioning pin 36, fourth positioning hole 37;

[0032] Concrete floor slab 4;

[0033] Close the template 5. DETAILED DESCRIPTION

[0034] 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 embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the core concept of the present invention and the following embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] The present application provides these embodiments to make this application thorough and complete, and to fully express the scope of this application to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values ​​set forth in these embodiments should be interpreted as merely exemplary, and not as limiting.

[0036] It should be noted that, in the description of this application, unless otherwise specified, "several" means greater than or equal to two; the terms "upper," "lower," "left," "right," "inner," "outer," "axial," "radial," and the like, indicating orientations or positional relationships, are intended solely to facilitate the description of this application and simplify the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0037] In addition, the terms "first," "second," and similar terms used in this application do not denote any order, quantity, or importance, but are simply used to distinguish different parts. "Perpendicular" does not mean perpendicular in the strict sense, but rather means within the tolerance range. "Parallel" does not mean parallel in the strict sense, but rather means within the tolerance range. "Include" or "comprising" and similar terms mean that the elements preceding the word include the elements listed after the word, and do not exclude the possibility of other elements being included.

[0038] It should also be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0039] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, common dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and should not be interpreted in an idealized or highly formal sense, unless explicitly defined as such herein.

[0040] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0041] A detachable assembly for enclosing and protecting an elevator shaft, such as Figure 1 、 Figure 2 、 Figure 6 As shown, it includes several fixing parts 2 embedded in the edge of the elevator shaft opening 1, and a telescopic sleeve 3 is connected between the fixing parts 2 on both sides of the elevator shaft opening 1. The length of the telescopic sleeve 3 is fixed by a positioning pin 30, and a closed template 5 is laid above each telescopic sleeve 3.

[0042] This embodiment does not require pre-embedded steel bars, nor does it require complex force calculations, nor does it rely on the workers' own skills and sense of responsibility. It also does not require the erection of scaffolding or cantilevered I-beam structures. Instead, it only requires the simple pre-embedding of fixings 2 when pouring the concrete floor panels around the elevator shaft, and then connecting telescopic sleeves between the fixings 2 to form a reliable support frame, and then laying the closed formwork 5 on the support frame. Therefore, this embodiment is not only simple in structure and easy to manufacture, assemble, and dismantle, but also highly versatile and applicable to a wide range of uses, facilitating turnover between floors, buildings, and construction projects. More importantly, it also has a low risk factor during assembly, use, and disassembly, making it extremely safe and reliable during use.

[0043] Based on the above embodiments, as a preferred embodiment, the fixing parts 2 on the same side of the elevator shaft opening 1 are pre-embedded at equal intervals on the concrete floor panel 4, and the fixing parts 2 on both sides of the elevator shaft opening 1 are arranged symmetrically about the diagonal line of the elevator shaft opening 1.

[0044] This embodiment provides a preferred arrangement of the fixing members 2, symmetrically arranged about the diagonal of the elevator shaft opening 1. That is, the axial direction of the fixing members 2 is parallel to the diagonal, and the axis of the telescopic sleeve 3 is also parallel to the diagonal. Other arrangements, such as random distribution, are also possible, as long as they can safely and reliably support the closed formwork 5.

[0045] Based on the above embodiments, as a preferred embodiment, the fixing parts 2 on the same side of the elevator shaft opening 1 are pre-embedded at equal intervals on the concrete floor panel 4, and the fixing parts 2 on both sides of the elevator shaft opening 1 are arranged symmetrically about the center line of the elevator shaft opening 1.

[0046] This embodiment provides a preferred arrangement for the fixing members 2, symmetrically arranged about the centerline of the elevator shaft opening 1. Specifically, the axial direction of the fixing members 2 is parallel to the centerline, and the axis of the telescopic sleeve 3 is also parallel to the centerline. The centerline can be either the centerline of the length or the centerline of the width of the elevator shaft opening 1. Furthermore, the fixing members 2, or telescopic sleeve 3, can be arranged in both the length and width directions of the elevator shaft opening 1, simply by arranging them in layers, further improving safety.

[0047] Based on the above embodiment, as a preferred embodiment, the fixing member 2 is a pre-embedded sleeve, and the ends of the telescopic sleeve 3 respectively engage with the pre-embedded sleeves on both sides of the elevator shaft opening 1. The outer ends of the pre-embedded sleeves can be flush with the inner wall of the elevator shaft opening 1 or extend beyond the inner wall of the elevator shaft opening 1. Alternatively, as another embodiment, the fixing member 2 is a pre-embedded support rod, in which the outer ends of the pre-embedded support rod extend beyond the inner wall of the elevator shaft opening 1, and the ends of the telescopic sleeve 3 respectively engage with the pre-embedded support rods on both sides of the elevator shaft opening 1.

[0048] On the basis of the above embodiments, as a preferred embodiment, the telescopic sleeve 3 includes an outer sleeve 31 and an inner sleeve 32 respectively plugged into the fixing parts 2 on both sides of the elevator shaft opening 1, and the outer sleeve 31 and the inner sleeve 32 are plugged into each other at one end.

[0049] On the basis of the above embodiments, as a preferred embodiment, Figure 3 As shown, the ends of the outer sleeve 31 and the inner sleeve 32 for insertion are provided with corresponding first positioning holes 33, and the positioning pins 30 are inserted and engaged with the first positioning holes 33. In other words, in this embodiment, only the positioning pins 30 are required to achieve relative fixation between the outer sleeve 31 and the inner sleeve 32, so that the length of the telescopic sleeve 3 is fixed and it will not fall off the fixing members 2 at both ends.

[0050] On the basis of the above embodiments, as a preferred embodiment, Figure 4 As shown, when the outer end of the embedded sleeve is flush with the edge of the concrete floor panel 4, a plurality of second positioning holes 34 are formed at the end of the outer sleeve 31 facing away from the inner sleeve 32. Second positioning pins 35 are inserted into and engage with the second positioning holes 34. The second positioning pins 35 engage with the edge of the concrete floor panel 4. The addition of second positioning pins 35 in this embodiment not only secures the telescopic sleeve 3 relative to the fixing member 2 via the positioning pins 30, but also further improves the reliability of positioning via the second positioning pins 35.

[0051] As another preferred embodiment, when the outer end of the embedded sleeve extends out of the concrete floor panel 4, the extended portion of the embedded sleeve and the end of the outer sleeve 31 facing away from the inner sleeve 32 are provided with a plurality of third positioning holes that match each other, and a third positioning pin is plugged into and engaged with the third positioning hole.

[0052] This embodiment not only has the same technical effects as the above embodiment, but also can use the third positioning pin to first fix the outer sleeve 31 during the installation process, so that the outer sleeve 31 is first fixed on the fixing member 2, and then the inner sleeve 32 is assembled, further improving the safety and convenience of the construction process.

[0053] On the basis of the above embodiments, as a preferred embodiment, Figure 5 As shown, when the outer end of the embedded sleeve is flush with the edge of the concrete floor panel 4, a plurality of fourth positioning holes 37 are formed at the end of the inner sleeve 32 facing away from the outer sleeve 31. Fourth positioning pins 36 are inserted into and engage with the fourth positioning holes 37. The fourth positioning pins 36 engage with the edge of the concrete floor panel 4. The addition of the fourth positioning pins 36 in this embodiment not only secures the telescopic sleeve 3 relative to the fixing member 2 via the positioning pins 30, but also further improves the reliability of positioning via the fourth positioning pins 36.

[0054] As another preferred embodiment, when the outer end of the embedded sleeve extends out of the concrete floor panel 4, the extended portion of the embedded sleeve and the end of the inner sleeve 32 facing away from the outer sleeve 31 are provided with a plurality of fifth positioning holes that match each other, and a fifth positioning pin is plugged into and engaged with the fifth positioning hole.

[0055] This embodiment not only has the same technical effects as the above embodiment, but also can use the fifth positioning pin to first fix the inner sleeve 32 during the installation process, first fixing the inner sleeve 32 to the fixing member 2, and then assembling the outer sleeve 31, further improving the safety and convenience of the construction process. Alternatively, the outer sleeve 31 can be first fixed to the fixing member 2 on one side, and the inner sleeve 32 can be fixed to the fixing member 2 on the other side, and then the limit of the outer sleeve 31 or the inner sleeve 32 can be released to adjust the relative position between the inner sleeve 32 and the outer sleeve 31, and finally the positioning pin 30 can be fixed.

[0056] Preferably, the outer sleeve 31 adopts an 80mm*80mm galvanized square tube, the inner sleeve 32 adopts a 50mm*50mm galvanized square tube, the embedded sleeve adopts a 100mm*100mm galvanized square tube, and each positioning pin adopts a triangular pin with a trapezoidal cross-section.

[0057] The above content shows and describes the basic principles, main features and beneficial effects of the present invention. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A detachable assembly for sealing and protecting an elevator shaft, characterized by: The invention comprises a plurality of fixing members (2) pre-buried at the edge of an elevator shaft opening (1); a telescopic sleeve (3) is connected between the fixing members (2) on both sides of the elevator shaft opening (1); the length of the telescopic sleeve (3) is fixed by a positioning pin (30); and a closed template (5) is laid above each telescopic sleeve (3).

2. The detachable assembly for sealing and protecting an elevator shaft according to claim 1, characterized in that: The fixing members (2) on the same side of the elevator shaft opening (1) are pre-buried at equal intervals on the concrete floor panel (4), and the fixing members (2) on both sides of the elevator shaft opening (1) are arranged symmetrically about the diagonal line of the elevator shaft opening (1).

3. The detachable assembly for sealing and protecting an elevator shaft according to claim 1, characterized in that: The fixing members (2) on the same side of the elevator shaft opening (1) are pre-buried at equal intervals on the concrete floor panel (4), and the fixing members (2) on both sides of the elevator shaft opening (1) are arranged symmetrically about the center line of the elevator shaft opening (1).

4. The detachable assembly for sealing and protecting an elevator shaft according to any one of claims 2 to 3, characterized in that: The fixing member (2) is a pre-buried sleeve, and the two ends of the telescopic sleeve (3) are respectively plugged into and matched with the pre-buried sleeves on both sides of the elevator shaft opening (1).

5. The detachable assembly for sealing and protecting an elevator shaft according to claim 4, characterized in that: The telescopic sleeve (3) comprises an outer sleeve (31) and an inner sleeve (32) respectively plugged into the fixing members (2) on both sides of the elevator shaft opening (1); the outer sleeve (31) and the inner sleeve (32) are plugged into and matched at their ends close to each other.

6. The detachable assembly for sealing and protecting an elevator shaft according to claim 5, characterized in that: One end of the outer sleeve (31) and the inner sleeve (32) where they are plugged together is provided with a first positioning hole (33) corresponding to each other, and the positioning pin (30) is plugged into and matched with the first positioning hole (33).

7. The detachable assembly for sealing and protecting an elevator shaft according to any one of claims 5 to 6, characterized in that: When the outer end of the embedded sleeve is flush with the edge of the concrete floor panel (4), a plurality of second positioning holes (34) are provided at one end of the outer sleeve (31) away from the inner sleeve (32), and second positioning pins (35) are plugged into and engaged with the second positioning holes (34). The second positioning pins (35) are engaged with the edge of the concrete floor panel (4).

8. The detachable assembly for sealing and protecting an elevator shaft according to claim 6, characterized in that: When the outer end of the embedded sleeve extends out of the concrete floor panel (4), the extended portion of the embedded sleeve and the end of the outer sleeve (31) facing away from the inner sleeve (32) are provided with a plurality of third positioning holes that match each other, and a third positioning pin is plugged into and engaged with the third positioning holes.

9. The detachable assembly for sealing and protecting an elevator shaft according to claim 8, characterized in that: When the outer end of the embedded sleeve is flush with the edge of the concrete floor panel (4), a plurality of fourth positioning holes (37) are provided at one end of the inner sleeve (32) facing away from the outer sleeve (31), and fourth positioning pins (36) are plugged into and engaged with the fourth positioning holes (37). The fourth positioning pins (36) are engaged with the edge of the concrete floor panel (4).

10. The detachable assembly for sealing and protecting an elevator shaft according to claim 8 or 9, characterized in that: When the outer end of the embedded sleeve extends out of the concrete floor panel (4), the extended portion of the embedded sleeve and the end of the inner sleeve (32) facing away from the outer sleeve (31) are provided with a plurality of fifth positioning holes that match each other, and a fifth positioning pin is plugged into and engaged with the fifth positioning hole.

Images