An adjustable gap elevator shaft guardrail

Abstract

This utility model discloses an adjustable-gap elevator shaft guardrail, including a guard plate. Connecting columns are symmetrically fixed at both ends of the guard plate, and uprights penetrate through the connecting columns. The uprights are slidably connected to the connecting columns, and the uprights and guard plate form a locking structure. Three sets of locking structures are arranged in total. A top plate and a bottom plate are respectively provided at the upper and lower ends of the uprights. This utility model allows for the alignment of the first connecting hole on the upright with the second connecting hole inside the externally threaded rod on one side of the connecting column, and the insertion of a limiting rod. This fixes the position of the guard plate on the upright, enabling vertical lifting and locking of the guard plate. When the shaft opening needs to be closed, the three guard plates are unfolded and locked sequentially to form a complete protective surface. When the shaft opening needs to be opened for personnel passage during construction, the locking is released, and the guard plates overlap to form a passageway. This ensures personnel safety during construction breaks and facilitates personnel entry and exit during construction operations.

Description

Technical Field

[0001] This utility model relates to the field of elevator shaft construction technology, specifically to an adjustable gap elevator shaft guardrail. Background Technology

[0002] In modern building construction, the safety of elevator shafts is a crucial measure to ensure the safety of construction workers. Currently, most elevator shaft safety railings on the market are fixed structures, typically made of metal and fixed around the shaft by welding or bolts. However, most existing elevator shaft safety railings are fixed structures, making them difficult to adjust once installed. This means that during construction, when workers need to pass through the shaft opening, parts of the railing must be removed, increasing construction difficulty and potentially affecting the stability and safety of the railings due to frequent disassembly and reassembly. Furthermore, since fixed railings do not provide temporary passage space, workers often have to detour a considerable distance or even climb over the railings, undoubtedly increasing safety hazards. Especially in emergencies, the lack of a quick passage route can delay rescue time and lead to more serious consequences. Utility Model Content

[0003] The purpose of this utility model is to provide an elevator shaft guardrail with adjustable gaps. By setting three expandable and overlapping guardrails, the gap between the guardrails can be quickly adjusted when needed, providing a safe and convenient passage space for construction workers and solving the problems in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An adjustable gap elevator shaft guardrail includes a guard plate, with connecting columns symmetrically fixed at both ends of the guard plate. A vertical rod passes through the connecting column and is slidably connected to the connecting column. The vertical rod and the guard plate form a locking structure, and a total of three locking structures are arranged. The upper and lower ends of the vertical rod are respectively provided with a top plate and a bottom plate.

[0006] Preferably, the upright has a first connecting hole, and there are several first connecting holes arranged longitudinally.

[0007] Preferably, one side of the connecting post is connected to an external threaded rod, which cooperates with the limiting post.

[0008] Preferably, a cylindrical groove is provided on one side of the limiting post to cooperate with the external threaded rod, and an internal thread is provided on the inner wall of the cylindrical groove. The limiting rod is fixed at the center of the cylindrical groove.

[0009] Preferably, the external threaded rod has a second connecting hole inside, and the axis of the second connecting hole coincides with the axis of the external threaded rod.

[0010] Preferably, the first connecting hole, the second connecting hole, and the limiting rod have the same diameter.

[0011] Preferably, mounting holes are provided on the top plate and the bottom plate.

[0012] Preferably, the height of the protective plate is one-third of the height of the pole.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention aligns the first connecting hole on the upright with the second connecting hole inside the external threaded rod on one side of the connecting column, and inserts a limiting rod to fix the position of the protective plate on the upright, thereby achieving vertical lifting and locking of the protective plate. When it is necessary to close the shaft opening, the three protective plates are unfolded and locked in sequence to form a complete protective surface. When it is necessary to open the shaft opening for personnel to pass through during construction, the locking is released and the protective plates are overlapped to form a passage space. This ensures the safety of personnel during construction breaks and facilitates the entry and exit of personnel during construction operations. Attached Figure Description

[0015] Figure 1 This is a first-state diagram of the overall structure of this utility model;

[0016] Figure 2 This is a second state diagram of the overall structure of this utility model;

[0017] Figure 3 This is an isometric view of the protective plate of this utility model;

[0018] Figure 4 This is a cross-sectional view showing the connection relationship between the limiting post and the external threaded rod of this utility model.

[0019] In the diagram: 1. Protective plate; 2. Connecting column; 3. Upright pole; 4. Top plate; 5. Bottom plate; 6. First connecting hole; 7. External threaded rod; 8. Limiting column; 9. Cylindrical groove; 10. Limiting rod; 11. Second connecting hole; 12. Mounting hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] To address the lack of flexibility and inconvenience to construction personnel caused by existing wellhead guardrails, the following technical solution is proposed. Please refer to [link / reference needed]. Figure 1-4 ;

[0022] An adjustable gap elevator shaft guardrail includes a guard plate 1, which is arranged horizontally. Connecting columns 2 are symmetrically fixed at both ends of the guard plate 1. The connecting columns 2 are hollow cylindrical structures. The connecting columns 2 and the guard plate 1 are an integral structure, which is convenient for mass production.

[0023] A vertical rod 3 runs through the connecting column 2. The vertical rod 3 is slidably connected to the connecting column 2. The vertical rod 3 is also a cylindrical structure. The outer diameter of the vertical rod 3 is equal to the inner diameter of the connecting column 2, so that the connecting column 2 can slide stably on the vertical rod 3, thereby allowing the protective plate 1 to rise and fall vertically along the direction of the vertical rod 3.

[0024] The upright 3 and the protective plate 1 form a locking structure, with a total of three sets of locking structures arranged. The height of the protective plate 1 is one-third of the height of the upright 3. The three staggered and longitudinally movable protective plates 1 are spliced ​​together to form a shaft opening protection surface. When the shaft opening is closed, the three protective plates 1 are unfolded and locked in sequence. One protective plate 1 is located at the top of the upright 3, the second protective plate 1 is located in the middle of the upright 3, and the last protective plate 1 is located at the bottom of the upright 3. When construction personnel need to pass through the shaft opening, the locking between the upright 3 and the protective plate 1 is released, and the position of the protective plate 1 is adjusted so that the protective plates 1 overlap, thereby forming a passage for construction personnel to pass through, which facilitates construction.

[0025] The top and bottom ends of the upright 3 are respectively provided with a top plate 4 and a bottom plate 5. The top plate 4 and the bottom plate 5 are provided with mounting holes 12. The upright 3 and the protective plate 1 are fixed to the wellhead through the top plate 4 and the bottom plate 5. The top plate 4 and the bottom plate 5 are fixed by inserting expansion bolts through the mounting holes 12, thereby fixing the protective plate 1 and the upright 3 at the wellhead position and playing a protective role.

[0026] The upright 3 has a first connecting hole 6, and there are several first connecting holes 6 arranged longitudinally. One side of the connecting column 2 is connected to an external threaded rod 7, which can be fixed to the connecting column 2 by welding. The external threaded rod 7 cooperates with the limiting column 8. One side of the limiting column 8 has a cylindrical groove 9 that cooperates with the external threaded rod 7. The inner wall of the cylindrical groove 9 is provided with internal threads. The diameter of the cylindrical groove 9 is equal to the outer diameter of the external threaded rod 7. The external threaded rod 7 passes into the cylindrical groove 9 and is threadedly engaged with the limiting column 8.

[0027] A limiting rod 10 is fixed at the center of the cylindrical groove 9. A second connecting hole 11 is opened inside the external thread rod 7. The axis of the second connecting hole 11 coincides with the axis of the external thread rod 7. The diameters of the first connecting hole 6, the second connecting hole 11 and the limiting rod 10 are the same. The limiting rod 10 passes through the second connecting hole 11 and the first connecting hole 6, and passes through the upright rod 3, thereby limiting the position of the connecting column 2 and the upright rod 3, and thus limiting the position of the protective plate 1.

[0028] Working principle: By aligning the first connecting hole 6 on the upright 3 with the second connecting hole 11 inside the external threaded rod 7 on one side of the connecting column 2, and inserting the limiting rod 10 of the limiting column 8, the position of the protective plate 1 on the upright 3 can be fixed, thereby achieving vertical lifting and locking of the protective plate 1. When it is necessary to close the shaft opening, the three protective plates 1 are unfolded and locked in sequence to form a complete protective surface. When it is necessary to open the shaft opening for personnel to pass through, the locking is released, and the protective plates 1 are overlapped to form a passage space. The upper and lower ends of the upright 3 are equipped with a top plate 4 and a bottom plate 5. The entire protective barrier is fixed to the shaft opening with expansion bolts through the mounting holes 12 to ensure its stability. This ensures safety during construction breaks and facilitates the entry and exit of construction personnel.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An adjustable-gap elevator shaft guardrail, comprising a guard plate (1), characterized in that, The protective plate (1) is symmetrically fixed with connecting columns (2) at both ends. A vertical rod (3) runs through the connecting column (2). The vertical rod (3) is slidably connected to the connecting column (2). The vertical rod (3) and the protective plate (1) form a locking structure. A total of three locking structures are arranged. The upper and lower ends of the vertical rod (3) are respectively provided with a top plate (4) and a bottom plate (5).

2. An adjustable gap elevator shaft guardrail according to claim 1, wherein, The upright (3) has a first connecting hole (6), and there are several first connecting holes (6) arranged longitudinally.

3. An adjustable gap elevator shaft guardrail according to claim 2, wherein, One side of the connecting post (2) is connected to an external threaded rod (7), which cooperates with the limiting post (8).

4. An adjustable gap elevator shaft guardrail according to claim 3, wherein, The limiting post (8) has a cylindrical groove (9) on one side that mates with the external thread rod (7). The inner wall of the cylindrical groove (9) is provided with an internal thread, and the limiting rod (10) is fixed at the center of the cylindrical groove (9).

5. An adjustable gap elevator shaft guardrail according to claim 4, wherein, The external threaded rod (7) has a second connecting hole (11) inside, and the axis of the second connecting hole (11) coincides with the axis of the external threaded rod (7).

6. An adjustable gap elevator shaft guardrail according to claim 5, wherein, The first connecting hole (6), the second connecting hole (11), and the limiting rod (10) have the same diameter.

7. An adjustable gap elevator shaft guardrail according to claim 6, wherein, Mounting holes (12) are provided on the top plate (4) and the bottom plate (5).

8. An adjustable gap elevator shaft guardrail according to claim 7, wherein, The height of the protective plate (1) is one-third of the height of the upright (3).

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