A telescopic protective fence structure for building elevator shaft construction

Abstract

The utility model discloses a telescopic guardrail structure for building elevator shaft construction relates to building construction safety protection equipment technical field, including protection subassembly, protection subassembly includes main vertical board and two side vertical boards, and two side vertical boards set up respectively in main vertical board both sides, and it is connected with a plurality of telescopic links between main vertical board and side vertical board. The utility model discloses through rotating screw rod, drives movable plate and moves down along main vertical board, makes two side vertical boards move in the direction of away from main vertical board, and the protection length of guardrail is conveniently and flexibly adjusted, realizes the adaptation to different size elevator shaft, and simultaneously infrared sensor can recognize that someone is close -by through the induction human body heat, when someone is close -by elevator shaft hole, and automatic trigger alarm, and alarm sends warning language in time, and warning assembly cooperates a plurality of light reflection strips, not only can enhance the stability of protection subassembly, can effectively improve the security and warning effect of guardrail structure.

Description

Technical Field

[0001] This utility model relates to the field of construction safety protection equipment technology, and in particular to a retractable protective railing structure for construction of building elevator shafts. Background Technology

[0002] During the construction process, elevator shafts, as important vertical passages, are left open during construction and are one of the major safety hazard areas on the construction site. If effective protective measures are not taken, safety accidents such as people falling or being struck by objects are very likely to occur, posing a serious threat to the lives of construction workers.

[0003] For example, Chinese patent CN221722486U discloses a safety guardrail for construction, including a connecting plate. There are two connecting plates, which are hinged together. A guardrail is fixed to the surface of the connecting plate. One end of the guardrail is fixed to the surface of the support plate. A second guardrail is fixed to the surface of the support plate. A screw is fixed to the surface of the second guardrail. A threaded sleeve is screwed onto the body of the screw. A pulley is rotatably connected to the surface of the support plate.

[0004] However, the common protective method used in the construction of building elevator shafts is to use fixed-size guardrails for enclosure. Since the size of elevator shafts varies from building to building, fixed-size guardrails cannot be flexibly adapted to different sizes of elevator shafts, resulting in poor protective effect. Either gaps appear in the protection or they cannot be installed smoothly. On the other hand, traditional guardrails lack warning devices and are mostly a single metallic color, which is easily overlooked by construction workers and poses safety hazards. Utility Model Content

[0005] The purpose of this utility model is to solve the problems existing in the prior art, and to propose a retractable protective railing structure for the construction of building elevator shafts.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a retractable protective railing structure for construction of building elevator shafts, comprising a protective component, wherein the protective component includes a main upright plate and two side upright plates, the two side upright plates being respectively disposed on both sides of the main upright plate, and multiple telescopic rods connecting the main upright plate and the side upright plates, a movable plate being slidably installed on the front side of the main upright plate near the top, and a fixed plate being fixedly installed on the front side of the main upright plate near the bottom, a threaded ring being rotatably installed inside the movable plate, and a threaded rod being rotatably installed on the top of the fixed plate, with the outer wall of the threaded rod engaging with the inner wall of the threaded ring, sliders being slidably installed on the front side of each of the two side upright plates, a rotating arm 1 being rotatably installed at both ends of the fixed plate, and a rotating arm 2 being rotatably installed at both ends of the movable plate, both rotating arms 1 and rotating arm 2 being adhered with reflective strips, and both ends of the sliders being rotatably connected to the ends of rotating arm 1 and rotating arm 2 respectively, and a warning component being inserted into the bottom of the protective component, the warning component including a support frame and an infrared sensor, with an alarm being fixedly installed on the front side of the infrared sensor.

[0007] Preferably, the infrared sensor is fixedly installed on the front side of the support frame, and sliding rods are slidably connected to both ends of the support frame.

[0008] Preferably, a column is welded to the end of the sliding rod away from the support frame, and an insert plate is welded to one end of the column. Insert holes for insertion into the insert plate are opened at the bottom of both the main plate and the side plate.

[0009] Preferably, a mounting plate one is welded to the front side of one of the side panels, and a mounting plate two is welded to the rear side of the other side panel, with a through hole provided at one end of the mounting plate two.

[0010] Preferably, a plug rod is slidably mounted on one end of the mounting plate, and grooves are symmetrically formed on the mounting plate on both sides of the plug rod.

[0011] Preferably, a spring is fixedly connected to the bottom of the groove, and one end of the spring is fixedly connected to one end of the insertion rod.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by rotating the threaded rod, the movable plate moves downward along the main upright plate. Rotating arm one and rotating arm two can push the slider away from the main upright plate. While the slider moves horizontally, it slides longitudinally along the side upright plate. At the same time, the two side upright plates move away from the main upright plate. Through the above structure, the protective length of the guardrail can be easily and flexibly adjusted to adapt to elevator shafts of different sizes. This effectively solves the problem that existing fixed guardrails cannot be flexibly adapted, and improves the versatility and practicality of the guardrail.

[0014] 2. In this utility model, the warning component and the protective component are plugged and fixed. The infrared sensor can detect the approach of a person by sensing the human body heat. When a person approaches the elevator shaft opening, the alarm is automatically triggered and the alarm will issue a warning in time. The warning component, together with multiple reflective strips, can not only enhance the stability of the protective component, but also effectively improve the safety and warning effect of the guardrail structure. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a retractable protective railing structure for construction of building elevator shafts proposed in this utility model.

[0016] Figure 2 This is a bottom view of a retractable guardrail structure for construction of building elevator shafts proposed in this utility model.

[0017] Figure 3 This is a front view of a retractable protective railing structure for construction of building elevator shafts proposed in this utility model.

[0018] Figure 4 This utility model proposes a retractable protective railing structure for construction of building elevator shafts. Figure 3 Enlarged detail view of point A in the middle;

[0019] Figure 5 This is a cross-sectional view of the mounting plate 1 and mounting plate 2 of the retractable guardrail structure for building elevator shaft construction proposed in this utility model, in their assembled state.

[0020] Legend: 1. Protective component; 2. Warning component; 11. Main upright plate; 12. Movable plate; 13. Threaded rod; 14. Telescopic rod; 15. Side upright plate; 16. Insertion hole; 17. Mounting plate one; 18. Mounting plate two; 19. Through hole; 110. Fixing plate; 111. Rotating arm one; 112. Sliding block; 113. Rotating arm two; 114. Reflective strip; 115. Threaded ring; 116. Insert rod; 117. Groove; 118. Spring; 21. Support frame; 22. Sliding rod; 23. Column; 24. Infrared sensor; 25. Alarm; 26. Insert plate. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein, and therefore the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figure 1 - Figure 4As shown, this utility model provides a retractable protective railing structure for construction of building elevator shafts, including a protective component 1. The protective component 1 includes a main upright plate 11 and two side upright plates 15. The two side upright plates 15 are respectively arranged on both sides of the main upright plate 11. Multiple telescopic rods 14 are connected between the main upright plate 11 and the side upright plates 15. A movable plate 12 is slidably installed on the front side of the main upright plate 11 near the top, and a fixed plate 110 is fixedly installed on the front side of the main upright plate 11 near the bottom. A threaded ring 115 is rotatably installed inside the movable plate 12. A threaded rod 13 is rotatably installed on the top of the fixed plate 110, and the outer wall of the threaded rod 13 engages with the inner wall of the threaded ring 115. Sliding blocks 112 are slidably installed on the front side of each of the two side upright plates 15. Rotating arms 11 are rotatably installed at both ends of the fixed plate 110. 1. Rotating arms 113 are rotatably mounted on both ends of the movable plate 12. Reflective strips 114 are glued to both rotating arms 111 and 113. The two ends of the slider 112 are rotatably connected to the ends of rotating arms 111 and 113 respectively. A warning component 2 is inserted into the bottom of the protective component 1. The warning component 2 includes a support frame 21 and an infrared sensor 24. An alarm 25 is fixedly mounted on the front side of the infrared sensor 24. The infrared sensor 24 is fixedly mounted on the front side of the support frame 21. Sliding rods 22 are slidably connected to both ends of the support frame 21. A column 23 is welded to the end of the sliding rod 22 away from the support frame 21. A plug plate 26 is welded to one end of the column 23. The bottom of the main plate 11 and the side plate 15 are provided with plug holes 16 for insertion into the plug plate 26.

[0024] The specific setup and function of this embodiment are described below: The guardrail structure consists of a protective component 1 and a warning component 2. Before installing the guardrail structure, first check whether the embedded parts at the bottom and sides of the elevator shaft wall are intact, clean up the debris around the opening, place the protective component 1 on the ground, and when the threaded rod 13 is rotated, the outer wall of the threaded rod 13 engages with the internal threaded ring 115 of the movable plate 12, thereby driving the movable plate 12 to move downward along the main upright plate 11. Figure 3As shown, rotating arm 113 and rotating arm 111 form a parallelogram. When the movable plate 12 moves downward along the main upright plate 11, rotating arm 111 and rotating arm 113 can push the slider 112 away from the main upright plate 11. While the slider 112 moves horizontally, it slides longitudinally along the side upright plate 15. At the same time, the side upright plate 15 and the main upright plate 11 are connected by multiple telescopic rods 14 (which can extend and retract horizontally), thereby causing the two side upright plates 15 to move away from the main upright plate 11. Therefore, through the above structure, rotating the threaded rod 13 can make the two side upright plates 15 move away from the main upright plate 11 (when rotating the threaded rod 13 in the opposite direction, the two side upright plates 15 move closer to the main upright plate 11), thus facilitating flexible adjustment of the guardrail's protective length and making it easy to store. This achieves adaptation to elevator shafts of different sizes, effectively solving the problem that existing fixed guardrails cannot be flexibly adapted, and improving the versatility and practicality of the guardrail.

[0025] After the length of the protective component 1 is adjusted, pull the sliding rod 22 outward to match the length of the warning component 2 with that of the protective component 1. After aligning the multiple inserts 26 of the warning component 2 with the multiple inserts 16 of the protective component 1, insert and fix the protective component 1 and the warning component 2. The infrared sensor 24 can detect when someone is approaching by sensing human body heat. When someone approaches within 1m of the elevator shaft opening, the alarm 25 is automatically triggered. The alarm 25 will promptly issue a warning (such as "Non-staff members please do not approach"). The warning component 2, together with multiple reflective strips 114, can not only enhance the stability of the protective component 1, but also effectively improve the safety and warning effect of the guardrail structure.

[0026] Example 2: Figure 3 and Figure 5 As shown, a mounting plate 17 is welded to the front side of one of the side plates 15, and a mounting plate 2 18 is welded to the rear side of the other side plate 15. One end of the mounting plate 2 18 has a through hole 19. A plug rod 116 is slidably mounted on one end of the mounting plate 17. Grooves 117 are symmetrically formed on the mounting plate 17 on both sides of the plug rod 116. A spring 118 is fixedly connected to the bottom of the groove 117, and one end of the spring 118 is fixedly connected to one end of the plug rod 116.

[0027] The overall effect of this embodiment is that by setting mounting plate 17 and mounting plate 2 18 on the two side uprights 15, when the elevator shaft opening is wide, it is necessary to splice the two protective components 1. The mounting plate 17 of one protective component 1 is brought close to the mounting plate 2 18 of the other protective component 1, and the insertion rod 116 is pulled forward. After the insertion rod 116 is aligned with the through hole 19, the insertion rod 116 is released. The insertion rod 116 is inserted into the through hole 19 under the action of the spring 118, thereby realizing the rapid assembly of the two protective components 1 and facilitating the rapid installation and disassembly of the protective components 1.

[0028] The usage and working principle of this device are as follows: Place the protective component 1 on the ground. When the threaded rod 13 is rotated, the movable plate 12 moves downward along the main upright plate 11. The rotating arm 111 and the rotating arm 113 can push the slider 112 away from the main upright plate 11. While the slider 112 moves horizontally, it slides longitudinally along the side upright plate 15, causing the two side upright plates 15 to move away from the main upright plate 11. Through the above structure, rotating the threaded rod 13 can move the two side upright plates 15 away from the main upright plate 11, thereby facilitating and flexibly adjusting the protective length of the guardrail, and making it easy to store, thus achieving adaptation to elevator shafts of different sizes.

[0029] After the length of the protective component 1 is adjusted, pull the sliding rod 22 outward to make the length of the warning component 2 match the length of the protective component 1. Insert and fix the protective component 1 and the warning component 2. The infrared sensor 24 can detect that someone is approaching by sensing human body heat. When someone approaches within 1m of the elevator shaft opening, the alarm 25 is automatically triggered and the alarm 25 issues a warning in time.

[0030] When it is necessary to splice two protective components 1, bring the mounting plate 17 of one protective component 1 close to the mounting plate 18 of the other protective component 1, and pull the plug rod 116 forward. After aligning the plug rod 116 with the through hole 19, release the plug rod 116. The plug rod 116 is inserted into the through hole 19 under the action of the spring 118, so as to realize the rapid assembly of the two protective components 1.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A retractable protective railing structure for construction of building elevator shafts, comprising a protective component (1), wherein the protective component (1) comprises a main upright plate (11) and two side upright plates (15), the two side upright plates (15) being respectively disposed on both sides of the main upright plate (11), characterized in that: Multiple telescopic rods (14) connect the main upright plate (11) and the side upright plates (15). A movable plate (12) is slidably installed on the front side of the main upright plate (11) near the top, and a fixed plate (110) is fixedly installed on the front side of the main upright plate (11) near the bottom. A threaded ring (115) is rotatably installed inside the movable plate (12). A threaded rod (13) is rotatably installed on the top of the fixed plate (110), and the outer wall of the threaded rod (13) meshes with the inner wall of the threaded ring (115). A slider (112) is slidably installed on the front side of both side upright plates (15). Rotating arm one (111) is rotatably installed at both ends of the movable plate (12), rotating arm two (113) is rotatably installed at both ends of the movable plate (12), and reflective strips (114) are glued on both rotating arm one (111) and rotating arm two (113). The two ends of the slider (112) are rotatably connected to the ends of rotating arm one (111) and rotating arm two (113) respectively. A warning component (2) is inserted into the bottom of the protective component (1). The warning component (2) includes a support frame (21) and an infrared sensor (24). An alarm (25) is fixedly installed on the front side of the infrared sensor (24).

2. The retractable protective railing structure for construction of building elevator shafts according to claim 1, characterized in that: The infrared sensor (24) is fixedly installed on the front side of the support frame (21), and sliding rods (22) are slidably connected to both ends of the support frame (21).

3. The retractable protective railing structure for construction of building elevator shafts according to claim 2, characterized in that: The sliding rod (22) is welded to a column (23) at one end away from the support frame (21), and a plug plate (26) is welded to one end of the column (23). The bottom of the main plate (11) and the side plate (15) are provided with plug holes (16) for insertion into the plug plate (26).

4. The retractable protective railing structure for construction of building elevator shafts according to claim 1, characterized in that: One of the side panels (15) is welded to the front side with a mounting plate one (17), and the other side panel (15) is welded to the rear side with a mounting plate two (18), and one end of the mounting plate two (18) is provided with a through hole (19).

5. The retractable protective railing structure for construction of building elevator shafts according to claim 4, characterized in that: A plug rod (116) is slidably installed on one end of the mounting plate (17), and grooves (117) are symmetrically opened on the mounting plate (17) on both sides of the plug rod (116).

6. The retractable protective railing structure for construction of building elevator shafts according to claim 5, characterized in that: A spring (118) is fixedly connected to the bottom of the groove (117), and one end of the spring (118) is fixedly connected to one end of the insertion rod (116).

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