Fastener type construction elevator access door limiter

By designing a fastener-type construction elevator access door limiter, and utilizing the mechanical linkage between the steel pipe frame and the limiter, the problem of the construction elevator access door failing to close effectively was solved, thus ensuring safety at the construction site.

CN223779748UActive Publication Date: 2026-01-09CHINA THIRD METALLURGICAL GRP
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Patent Information

Application Number
CN202520462211.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2026-01-09
Estimated Expiration
2035-03-17

AI Technical Summary

Technical Problem

When the construction elevator reaches a specific floor, the temporary passage door may fail to close effectively due to operational negligence or lock problems, increasing the risk of people falling.

Method used

A fastener-type construction elevator passage door limiter was designed. Through the combination structure of steel pipe frame, door leaf, limiter and door bolt, the mechanical linkage of spring and locking pin is used to ensure that the door leaf is effectively fixed when not in use and to prevent accidental opening.

Benefits of technology

This effectively prevented falls caused by unlocked access doors, ensuring the safety of the construction site.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of construction elevators, and particularly relates to a fastener type construction elevator access door limiter which comprises a steel pipe frame. The pull block is pulled to drive the connecting block to move through the connecting rod to compress the spring, the connecting block drives the bayonet lock to move, one of the two door leaves is rotated, the door leaf drives the mounting block to be clamped with the limiting groove, the tension of the pull block is released, the spring is reset, the bayonet lock is driven by the connecting block to be clamped with the clamping groove, and the two door leaves are fixed. The door frame is fixedly supported through the steel pipe frame, and the three limiting stoppers are arranged, so that in normal use, due to the fact that the width of a door of a construction hoist is limited, when the channel door is opened, the door leaf is restrained by the limiting stoppers and cannot be opened outwards, and the situation that people push the channel door by mistake to fall outwards due to the fact that the door is not locked is avoided; and through the arrangement of the door bolt and the limiting stopper, the door leaf can more effectively control the opening of the channel gate when not used, and the safety of personnel is effectively guaranteed.
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Description

TECHNICAL FIELD

[0001] The utility model relates to construction elevator technical field, concretely is a fastener type construction elevator access door stopper. BACKGROUND

[0002] In the field of construction buildings, construction elevators (also known as construction hoists) as a kind of key temporary installation equipment, play the role of efficient, rapid vertical lifting of construction personnel, materials to high-altitude construction work area, widely used in indoor and outdoor decoration engineering. Its operating mechanism depends on vertical lifting technology, ensures the smooth and efficient of construction process, however, in the actual operation process of construction elevator, there is a long-term problem has not been properly solved. When the construction elevator runs between specific floors, due to the inherent distance between the frame and the floor, the construction personnel and materials cannot directly reach the floor inside. In order to overcome this difficulty, temporary construction platforms are often needed to be built on the construction site to shorten the distance between the construction elevator and the building main body, so as to ensure the smooth transfer of personnel and materials, according to the relevant strict requirements of safety and civilized construction, temporary access doors must be installed on these temporarily built platforms to ensure that the platform is in a closed state when the elevator does not run to the floor, so as to effectively prevent the occurrence of safety accidents such as personnel falling accident. This measure is crucial to ensure the safety of the construction site;

[0003] However, in actual operation, the management and use of temporary access doors face many challenges. Due to the negligence of the operator or the potential problems existing in the connection of the lock between the door leaves, the temporary access door often fails to achieve the expected closing effect. This negligence or failure may cause the door to be in an unsealed state when the elevator does not reach the floor, thereby increasing the risk of personnel falling from a high place. Once such safety accidents occur, the consequences will be disastrous, therefore we propose a fastener type construction elevator access door stopper to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] (I) Technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a fastener type construction elevator access door stopper, which solves the problems raised in the above background technology.

[0006] (II) Technical scheme

[0007] The utility model in order to realize above-mentioned purpose specifically adopts following technical scheme:

[0008] The utility model provides a fastener type construction elevator access door stopper, including steel pipe frame, be connected with the door frame on the steel pipe frame fixedly, the both sides inner wall of door frame is rotatably connected with the door leaf, the front side of door frame is equipped with three stoppers, the front side of one door leaf in two door leaves is connected with the door bolt fixedly, the rear side of door bolt is equipped with the limiting slot, the front side of another door leaf in two door leaves is connected with the mounting block fixedly, the mounting block is clamped with corresponding limiting slot, the mounting block is equipped with the clamping groove, the cavity is equipped with the recess on the both sides inner wall of cavity, the both sides inner wall of recess is fixedly connected with the guide rod, the guide rod is connected with the connecting block of sliding, the one side of connecting block is fixedly connected with the clamping pin, the clamping pin is clamped with the clamping groove, the other side of connecting block is welded with the connecting rod, the one side of connecting block and the left side inner wall of cavity are fixedly connected with the spring, the spring is movably covered in the connecting rod, the end of connecting rod extends to the outside of door bolt and is welded with the pull block.

[0009] Further, one of the three stoppers is located at the middle of the front side of the door frame, and the other two of the three stoppers are located at the two sides of the bottom of the front side of the door frame, and the three stoppers form a three-point type.

[0010] Further, a guide hole is formed on the right inner wall of the cavity, and the inner wall of the guide hole is slidably connected with the outer side of the clamping pin.

[0011] Further, two circular holes are formed on the connecting block, and the connecting block is slidably connected with the corresponding guide rod through the circular holes.

[0012] Further, a through hole is formed on the left inner wall of the cavity, and the inner wall of the through hole is slidably connected with the outer side of the connecting rod.

[0013] (Three) beneficial effects

[0014] Compared with the prior art, the utility model provides a fastener type construction elevator access door stopper, which has the following beneficial effects:

[0015] The utility model discloses, through pulling the pull block, and the pull block moves the connecting block through the connecting rod, and the connecting block compresses the spring in the process of moving, and the connecting block drives the pin to move, and then one of the two door leaves is rotated, and the door leaf drives the mounting block to be clamped with the limiting groove, and then the pulling force of the pull block is relaxed, and the spring under the compression state resets, and the spring drives the pin to be clamped with the card slot through the connecting block, thereby fixing the two door leaves, and the door frame is fixed and supported through the steel pipe frame, and the setting of three limiters makes the door leaf unable to open outwardly when the access door is opened because the construction elevator door width is limited, thereby preventing the personnel from falling outwards because the door is not locked, and the setting of the bolt and the limiter makes the door leaf more effectively control the opening of the access door when not in use, and personnel safety is effectively ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0017] Figure 2 It is the three-dimensional structure schematic diagram of one of the two door leaves of the utility model hides behind;

[0018] Figure 3 It is the three-dimensional structure schematic diagram of the bolt of the utility model cuts open;

[0019] Figure 4 It is the three-dimensional structure schematic diagram of the mounting block of the utility model.

[0020] In the drawing: 1, steel pipe frame;2, door frame;3, door leaf;4, limiter;5, bolt;6, limiting groove;7, mounting block;8, card slot;9, cavity;10, recess;11, guide rod;12, connecting block;13, pin;14, connecting rod;15, spring;16, pull block. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0022] EMBODIMENT

[0023] As Figures 1-4As shown, the utility model discloses a kind of door stopper of fastener type construction elevator passageway door, including steel pipe frame 1, steel pipe frame 1 is fixedly connected with door frame 2, both sides inner wall of door frame 2 are rotatably connected with door leaf 3, the front side of door frame 2 is equipped with three limiters 4, the front side of one of two door leaves 3 is fixedly connected with door bolt 5, the rear side of door bolt 5 is equipped with limit slot 6, the front side of another door leaf 3 in two door leaves 3 is fixedly connected with mounting block 7, mounting block 7 is clamped with corresponding limit slot 6, mounting block 7 is equipped with clamping groove 8, door bolt 5 is equipped with cavity 9, the both sides inner wall of cavity 9 is equipped with recess 10, the both sides inner wall between recess 10 is fixedly connected with guide rod 11, guide rod 11 is slidably connected with connecting block 12, one side of connecting block 12 is fixedly connected with clamping pin 13, clamping pin 13 is clamped with clamping groove 8, the other side of connecting block 12 is welded with connecting rod 14, one side of connecting block 12 and the left side inner wall of cavity 9 are fixedly connected with spring 15, spring 15 is movably sleeved on connecting rod 14, the end of connecting rod 14 extends to the outside of door bolt 5 and is welded with pull block 16, pull block 16 is pulled, pull block 16 is moved by connecting rod 14, connecting block 12 is compressed in the process of moving, simultaneously, connecting block 12 drives clamping pin 13 to move, then one of two door leaves 3 is rotated, door leaf 3 drives mounting block 7 and limit slot 6 to be clamped, then the tension of pull block 16 is relaxed, spring 15 resets under compression, spring 15 drives clamping pin 13 and clamping groove 8 to be clamped by connecting block 12, so as to fix two door leaves 3, door frame 2 is fixed and supported by steel pipe frame 1, by the setting of three limiters 4, when passageway door is opened, because the width of construction hoist door is limited, door leaf 3 is restricted by limiter 4 and cannot be opened to outside, so as to prevent personnel from falling outside due to door not being locked, by the setting of door bolt 5 and limiter 4, door leaf 3 is more effectively controlled to open passageway door when not being used, effectively guarantee the safety of personnel.

[0024] In some embodiments, one of three limiters 4 is located in the middle of the front side of door frame 2, and the other two of three limiters 4 are located on both sides of the bottom of the front side of door frame 2, and three limiters 4 form a three-point type.

[0025] In some embodiments, a guide hole is formed in the right side inner wall of cavity 9, and the inner wall of the guide hole is slidably connected with the outer side of clamping pin 13.

[0026] In some embodiments, two circular holes are formed in connecting block 12, and connecting block 12 is slidably connected with corresponding guide rod 11 through the circular holes.

[0027] In some embodiments, a through hole is formed in the left inner wall of the cavity 9, and the inner wall of the through hole is in sliding connection with the outer side of the connecting rod 14.

[0028] The working principle or structural principle is that when in use, the mounting block 7 is separated from the door bolt 5, the pull block 16 is pulled, the pull block 16 drives the connecting block 12 to move through the connecting rod 14, the connecting block 12 compresses the spring 15 in the process of moving, the connecting block 12 drives the pin 13 to move, then one of the two door leaves 3 is rotated, the door leaf 3 drives the mounting block 7 to be clamped with the limiting groove 6, then the pulling force on the pull block 16 is released, the spring 15 in the compressed state is reset, the spring 15 drives the pin 13 to be clamped with the clamping groove 8 through the connecting block 12, so as to fix the two door leaves 3, the steel pipe frame 1 is used to fix and support the door frame 2, and the three limiters 4 are used to make the door leaf 3 unable to open outwardly due to the restriction of the limiters 4 when the construction elevator gate is opened due to the limited width of the gate, so that the personnel falling accident caused by the mispushing of the gate outwardly due to the unlocked gate is eliminated, and the door leaf 3 is more effectively controlled to open the gate when not in use, so that the safety of the personnel is effectively ensured.

[0029] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A limiter for a construction elevator access door, comprising a steel pipe frame (1), characterized in that: The door frame (2) is fixedly connected on the steel pipe frame (1), both sides of the door frame (2) are rotatably connected with door leaves (3), the front side of the door frame (2) is provided with three limiters (4), the front side of one of the two door leaves (3) is fixedly connected with a door bolt (5), the rear side of the door bolt (5) is provided with a limiting groove (6), the front side of the other of the two door leaves (3) is fixedly connected with a mounting block (7), the mounting block (7) is clamped with the corresponding limiting groove (6), the mounting block (7) is provided with a clamping groove (8), the door bolt (5) is provided with a cavity (9), both sides of the cavity (9) are provided with grooves (10), the two sides of the groove (10) are fixedly connected with guide rods (11), the guide rods (11) are slidably connected with connecting blocks (12), one side of the connecting block (12) is fixedly connected with a clamping pin (13), the clamping pin (13) is clamped with the clamping groove (8), the other side of the connecting block (12) is welded with a connecting rod (14), one side of the connecting block (12) and the left side of the cavity (9) are fixedly connected with springs (15), the springs (15) are movably sleeved on the connecting rod (14), the end of the connecting rod (14) extends out of the door bolt (5) and is welded with a pulling block (16).

2. A construction elevator access door limiter according to claim 1, wherein: One of the three limiters (4) is located in the middle of the front side of the door frame (2), the other two of the three limiters (4) are located on both sides of the bottom of the front side of the door frame (2), and the three limiters (4) form a three-point type.

3. A construction elevator access door limiter according to claim 2, wherein: The right side of the cavity (9) is provided with a guide hole, and the inner wall of the guide hole is slidably connected with the outer side of the clamping pin (13).

4. A construction elevator access door limiter according to claim 3, wherein: The connecting block (12) is provided with two circular holes, and the connecting block (12) is slidably connected with the corresponding guide rod (11) through the circular holes.

5. A construction elevator access door limiter according to claim 4, wherein: The left side of the cavity (9) is provided with a through hole, and the inner wall of the through hole is slidably connected with the outer side of the connecting rod (14).