Handrail-free opening opposite-pulling protection device

Abstract

The utility model discloses a railing-free hole opening opposite-pulling protective device which comprises a hole opening, a mounting plate, a supporting plate, a fixing structure, a first telescopic structure and a second telescopic structure. By arranging the fixing structure, a first handle is pulled upwards, so that a second handle is driven to be inserted into a circular groove of the first handle through the rebound resilience of a second spring, and the first handle is pulled upwards; by arranging a first fixing plate and a second fixing plate, a first handle is further limited, a cover plate provided with a limiting groove is conveniently moved to the upper end face of the second fixing plate, by pulling a second handle, the first handle drives the limiting groove inserted into the cover plate through a first spring, and then the cover plate is limited; alignment and distance adjustment of the fixing structures are facilitated, and the effect that the cover plate can be conveniently and rapidly installed is achieved.

Description

Technical Field

[0001] This utility model relates to the field of building construction, and in particular to a tie-bar protective device for openings without railings. Background Technology

[0002] Pre-reserved openings are very common at construction sites. These openings range in diameter from several meters to a few centimeters. The existence of these pre-reserved openings poses safety hazards on site. Generally, bamboo plywood is used to cover the pre-reserved openings.

[0003] The announcement number CN206971786U discloses a "Protective Device for Openings", which includes: a first track fixed to a first end of the opening, the first track forming a first limiting groove; a second track fixed to a second end of the opening opposite to the first end, the second track forming a second limiting groove, the first limiting groove and the second limiting groove being arranged facing each other; and a cover plate inserted and fixed in the first limiting groove and the second limiting groove, the cover plate covering the top of the opening, and the opening being sealed by pulling the cover plate, which reduces the difficulty of safety management of opening protection, has a simple structure and installation, and the first track and the second track can be prefabricated according to the size of the opening, thus obtaining a standardized and modular opening protection device. The cover plate and the first and second tracks can be disassembled and moved to other openings for reuse, which is low in cost and high in efficiency.

[0004] Although the aforementioned opening protection device has certain advantages in terms of protection capabilities, the first and second tracks are not easy to align during installation, resulting in low installation efficiency of the cover plate. Furthermore, it is not convenient to adjust the length of the two sets of tracks, which is not conducive to the installation of the cover plate when the opening is large. Utility Model Content

[0005] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides a railing-free opening pull-out protection device.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a railing-free opening pull-out protection device, comprising an opening, a mounting plate, a support plate, a fixing structure, a first telescopic structure, and a second telescopic structure. Four sets of mounting plates are provided on the outer side of the opening, and a support plate is installed on the upper surface of each of the four sets of mounting plates. A fixing structure and a first telescopic structure are respectively installed on the upper and lower sides of the inner sidewall of the support plate. The first telescopic structure is connected to the second telescopic structure. The fixing structure includes a first fixing plate, a second fixing plate, a first handle, a first limiting plate, a first spring, and a limiting structure. A second fixing plate is provided on the lower side of the first fixing plate, and a first handle is provided on the upper side of the first fixing plate. The lower end of the first handle passes through the first fixing plate and is fitted to the second fixing plate. A first limiting plate and a first spring are fitted on the lower side of the first handle. The upper surface of the first limiting plate is elastically connected to the first fixing plate via the first spring. The upper side of the left end of the first handle is fitted to the limiting structure. Both the first fixing plate and the second fixing plate are installed on the inner sidewall of the support plate.

[0007] Optionally, the first telescopic structure includes a shell, a limiting block, and a movable plate. The limiting block is provided inside the shell, and the movable plate is installed on the push-pull surface of the limiting block. The left and right sides of the shell and the movable plate are respectively fixedly connected to the support plate and the second telescopic structure.

[0008] Optionally, the limiting structure includes a second handle, a second limiting plate, and a second spring. The through support plate of the second handle is fitted to the first handle, and the inner and outer walls of the second handle are fitted with the second limiting plate and the second spring. The outer wall of the second limiting plate is elastically connected to the support plate through the second spring.

[0009] Optionally, the first telescopic structure and the second telescopic structure have the same structure.

[0010] Optionally, the limiting block slides along the inner wall of the outer casing.

[0011] Optionally, a circular groove is provided on the lower side of the first handle to mate with the second handle.

[0012] Optionally, both the first handle and the grip of the second handle are provided with anti-slip texture.

[0013] The beneficial effects of this utility model are:

[0014] This utility model is a railingless opening pull-out protective device. By setting up a fixed structure, pulling the first handle upward causes the second handle to be inserted into the circular groove of the first handle through the elasticity of the second spring, thereby limiting the first handle. This facilitates the movement of the cover plate with the limiting groove to the upper end of the second fixed plate. By pulling the second handle, the first handle is driven by the first spring to be inserted into the limiting groove of the cover plate, thereby limiting the cover plate. By setting up a first telescopic structure and a second telescopic structure, it is beneficial to align and adjust the spacing of the fixed structure, achieving the effect of facilitating the quick installation of the cover plate. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the fixing structure of this utility model;

[0018] Figure 4 This is a top view of the first telescopic structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the limiting structure of this utility model.

[0020] Among them: opening-1, mounting plate-2, support plate-3, fixing structure-4, first telescopic structure-5, second telescopic structure-6, first fixing plate-41, second fixing plate-42, first handle-43, first limiting plate-44, first spring-45, limiting structure-46, outer shell-51, limiting block-52, movable plate-53, second handle-461, second limiting plate-462, second spring-463. Detailed Implementation

[0021] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0022] Please see Figure 1-3This utility model provides a railing-free opening pull-out protection device, including an opening 1, mounting plates 2, support plates 3, fixing structures 4, a first telescopic structure 5, and a second telescopic structure 6. Four sets of mounting plates 2 are provided on the outer side of the opening 1. Support plates 3 are installed on the upper surface of each of the four sets of mounting plates 2. Fixing structures 4 and the first telescopic structure 5 are respectively installed on the upper and lower sides of the inner sidewalls of the support plates 3. The first telescopic structure 5 is connected to the second telescopic structure 6. The fixing structure 4 includes a first fixing plate 41, a second fixing plate 42, a first handle 43, a first limiting plate 44, a first spring 45, and a limiting structure 46. The lower side of the first fixing plate 41 is provided with… A second fixing plate 42 is provided. A first handle 43 is provided on the upper side of the first fixing plate 41, and the lower end of the first handle 43 passes through the first fixing plate 41 and fits against the second fixing plate 42. A first limiting plate 44 and a first spring 45 are fitted on the lower side of the first handle 43. The upper end face of the first limiting plate 44 is elastically connected to the first fixing plate 41 through the first spring 45. The upper side of the left end face of the first handle 43 fits against the limiting structure 46. The first fixing plate 41 and the second fixing plate 42 are both installed on the inner side wall of the support plate 3. The first telescopic structure 5 and the second telescopic structure 6 have the same structure, which facilitates the alignment of the fixing structures 4 on the left and right sides.

[0023] Please see Figure 4 This utility model provides a railing-free opening anti-pinch device. The first telescopic structure 5 includes a shell 51, a limiting block 52, and a movable plate 53. The limiting block 52 is provided inside the shell 51. The movable plate 53 is installed on the push-pull surface of the limiting block 52. The left and right sides of the shell 51 and the movable plate 53 are respectively fixedly connected to the support plate 3 and the second telescopic structure 6. The limiting block 52 slides along the inner wall of the shell 51, which is beneficial to adjusting the spacing of the fixed structure 4.

[0024] Please see Figure 5 This utility model provides a pull-out protective device for a railing-free opening. The limiting structure 46 includes a second handle 461, a second limiting plate 462, and a second spring 463. The through support plate 3 of the second handle 461 fits against the first handle 43, and the second limiting plate 462 and the second spring 463 are fitted on both the inner and outer walls of the second handle 461. The outer wall of the second limiting plate 462 is elastically connected to the support plate 3 through the second spring 463. A circular groove is provided on the lower side of the first handle 43 to cooperate with the second handle 461, so as to limit the first handle 461 through the second handle 461. The grips of the first handle 43 and the second handle 461 are provided with anti-slip textures to prevent slippage when gripping the handle.

[0025] The working principle is as follows:

[0026] First, place the new device in the required position. Then, adjust the extension length of the movable plate 53 of the first telescopic structure 5 and the second telescopic structure 6 according to the size of the opening. After the position is determined, fix the mounting plate 2 to the ground with bolts so that the device is limited, thereby preventing the first telescopic structure 5 and the second telescopic structure 6 from extending or retracting, thus achieving the effect of facilitating the adjustment of the spacing of the fixed structure 4.

[0027] Second, by making the first telescopic structure 5 and the second telescopic structure 6 parallel, the fixing structure 4 is aligned. By moving the first handle 43 upward, the first handle 43 drives the first limiting plate 44 upward. The first limiting plate 44 squeezes the first spring 45, causing the first spring 45 to contract. At the same time, after the first handle 43 moves upward into place, the elasticity of the second spring 463 drives the second limiting plate 462 to move. The second limiting plate 462 drives the second handle 461 to move, so that the second handle 461 is inserted into the circular groove of the first handle 43, thereby limiting the first handle 43. At this time, the pre-made cover plate is moved to the upper end face of the second fixing plate 42. By utilizing the alignment feature of the fixing structure 4, the cover plate is not placed directly, so that the limiting groove of the cover plate is aligned with the second handle 43. By pulling the second handle 461, the first handle 43 is inserted into the limiting groove, achieving the effect of facilitating the alignment and installation of the cover plate.

[0028] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0029] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field. In addition, the present invention is mainly used to protect mechanical devices, so the control method and circuit connection are no longer explained in detail in the present invention.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A railingless opening pull-out protection device, comprising an opening (1), mounting plates (2) and support plates (3), wherein four sets of mounting plates (2) are provided on the outside of the opening (1), and support plates (3) are installed on the upper surface of the four sets of mounting plates (2); Its features are: It also includes a fixing structure (4), a first telescopic structure (5), and a second telescopic structure (6). The inner sidewall of the support plate (3) is respectively equipped with a fixing structure (4) and a first telescopic structure (5). The first telescopic structure (5) is connected to the second telescopic structure (6). The fixing structure (4) includes a first fixing plate (41), a second fixing plate (42), a first handle (43), a first limiting plate (44), a first spring (45), and a limiting structure (46). The second fixing plate (42) is provided on the lower side of the first fixing plate (41). A first handle (43) is provided on the upper side of the plate (41), and the lower end of the first handle (43) passes through the first fixing plate (41) and is attached to the second fixing plate (42). A first limiting plate (44) and a first spring (45) are fitted on the lower side of the first handle (43). The upper end face of the first limiting plate (44) is elastically connected to the first fixing plate (41) through the first spring (45). The upper side of the left end face of the first handle (43) is attached to the limiting structure (46). The first fixing plate (41) and the second fixing plate (42) are both installed on the inner side wall of the support plate (3).

2. The railing-free opening tie-down protection device according to claim 1, characterized in that: The first telescopic structure (5) includes a shell (51), a limiting block (52) and a movable plate (53). The limiting block (52) is provided inside the shell (51), and the movable plate (53) is installed on the push-pull surface of the limiting block (52). The left and right sides of the shell (51) and the movable plate (53) are respectively fixedly connected to the support plate (3) and the second telescopic structure (6).

3. The railing-free opening tie-down protection device according to claim 1, characterized in that: The limiting structure (46) includes a second handle (461), a second limiting plate (462), and a second spring (463). The through support plate (3) of the second handle (461) is fitted with the first handle (43), and the inner and outer walls of the second handle (461) are fitted with the second limiting plate (462) and the second spring (463). The outer wall of the second limiting plate (462) is elastically connected to the support plate (3) through the second spring (463).

4. The railing-free opening tie-down protection device according to claim 1, characterized in that: The first telescopic structure (5) and the second telescopic structure (6) have the same structure.

5. The railing-free opening tie-down protection device according to claim 2, characterized in that: The limiting block (52) slides along the inner wall of the outer shell (51).

6. The railing-free opening tie-down protection device according to claim 3, characterized in that: The lower side of the first handle (43) is provided with a circular groove that matches the second handle (461).

7. The railing-free opening tie-down protection device according to claim 3, characterized in that: The first handle (43) and the second handle (461) are both provided with anti-slip textures on the grip.

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