A bottom blocking device for stage fire curtain

Abstract

The utility model provides a bottom blocking device for a stage fire curtain, comprising a shielding plate, a connecting frame assembly and a rebound member, wherein the shielding plate is rotatably mounted on the upper side of the front end of an external stage fixing frame and is located directly below the fire curtain, and is used for blocking the gap between the stage fixing frame and the fire curtain when the fire curtain is raised; a plurality of connecting frame assemblies are arranged at intervals along the length direction of the shielding plate; the connecting frame assembly comprises an upper connecting frame and a lower connecting frame which are arranged perpendicularly to each other, the lower connecting frame can be rotated relative to the upper connecting frame, the upper connecting frame is mounted on the stage fixing frame, and the lower connecting frame is fixed on the upper end surface of the shielding plate; the rebound member is mounted between the upper connecting frame and the lower connecting frame, and is used for resetting after the shielding plate is turned over; the bottom blocking device for a stage fire curtain provided by the utility model overcomes the defect that the gap between the existing fire curtain and the stage fixing frame is not blocked.

Description

Technical Field

[0001] The utility model relates to the field of stage fire curtains, in particular to a bottom blocking device of a stage fire curtain. Background Art

[0002] With the continuous development of modern theater technology, the safety of theater stages has received more and more attention. Among them, fire isolation curtains, as an important part of theater safety, need to be designed reasonably and meet fire protection requirements. Stage fire curtains are special equipment for theater safety and fire protection. When a fire occurs in the theater, the stage fire curtain can be freely lowered by pulling the hand switch when the power is cut off. The curtain body can quickly and safely land on the ground, cutting off the spread of a large amount of smoke and heat waves generated by the fire, protecting the evacuation of audiences and actors in time, and minimizing the loss of theater equipment.

[0003] Since the fire curtain is in a raised state under normal conditions, the current setting of the fire curtain will cause a gap or partition between the stage building entrance and other stage machinery and equipment, which lacks aesthetics from the outside. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The problem to be solved by the utility model is to provide a bottom blocking device of a stage fire curtain, so as to overcome the defect that the gap between the existing fire curtain and the stage fixing frame is not blocked.

[0006] (II) Technical solution

[0007] In order to solve the technical problem, the utility model provides a bottom blocking device of a stage fire curtain, comprising:

[0008] A shielding plate is rotatably mounted on the upper front end of the external stage fixing frame and is located directly below the fire curtain, and is used to shield the gap between the stage fixing frame and the fire curtain when the fire curtain is raised;

[0009] A plurality of connecting frame assemblies are arranged at intervals along the length direction of the shielding plate; the connecting frame assemblies are installed between the shielding plate and the stage fixing frame, and are used to flip and open the shielding plate when the fire curtain falls; the connecting frame assemblies include an upper connecting frame and a lower connecting frame arranged perpendicularly to each other, the lower connecting frame can rotate relative to the upper connecting frame, the upper connecting frame is installed on the stage fixing frame, and the lower connecting frame is fixed on the upper end surface of the shielding plate;

[0010] A resilient member is installed between the upper connecting frame and the lower connecting frame, and is used for resetting the shielding plate after it is flipped over.

[0011] In some embodiments, a mounting cavity is provided at the front end of the lower connecting frame, a roller is rotatably mounted in the mounting cavity, and the roller protrudes from the upper surface of the lower connecting frame, so that the fire curtain first contacts the roller when it falls.

[0012] In some embodiments, the rear end of the lower connecting frame is symmetrically provided with limit plates on both sides, and the limit plates are used to limit the position of the shielding plate after it is reset; the upper connecting frame is symmetrically provided with stopper side ears corresponding to the limiter plates on both sides. The stopper side ears are installed with buffers, and the buffers are used to buffer the limiter plates.

[0013] In some embodiments, the connecting frame assembly further comprises a base plate fixed on the stage fixing frame, the upper connecting frame is rotatably mounted on the base plate; an adjusting screw is installed between the upper connecting frame and the base plate, the adjusting screw is used to adjust the angle of the upper connecting frame, and then adjust the angle of the shielding plate. One end of the adjusting screw is slidably hinged on the upper connecting frame, and the other end passes through the base plate; the adjusting screw is threadedly connected with fastening nuts on both sides of the base plate.

[0014] In some embodiments, a first hinge seat is symmetrically arranged at the upper end of the upper connecting frame, a first hinge shaft is installed at one end of the adjusting screw, and a waist-shaped groove for the first hinge shaft to move is arranged on the first hinge seat. A second hinge seat is symmetrically arranged on the base plate toward the upper connecting frame, and the second hinge seat is placed in the upper connecting frame and is hinged to each other through a second hinge shaft.

[0015] In some embodiments, the upper end of the resilient member is fixed to the upper connecting frame, and a rotating shaft is rotatably mounted on the lower end of the resilient member. The rotating shaft is placed in the lower connecting frame and fixed to each other by fasteners.

[0016] (III) Beneficial effects

[0017] The utility model provides a bottom blocking device for a stage fire curtain. Through the cooperation of a shielding plate, an upper connecting frame, a lower connecting frame and a resilient member, when the fire curtain is lowered, under the action of the gravity of the fire curtain, the fire curtain presses down the lower connecting frame through rollers, so that the lower connecting frame rotates relative to the upper connecting frame, and then the shielding plate can be flipped open; when the fire curtain is raised, under the action of the resilient member, the shielding plate is reset and closed, so that the gap between the fire curtain and the stage fixing frame can be blocked, the appearance is more beautiful, and the use is safer; it can block the gap without affecting the function of the fire curtain, the design is ingenious, and the practicability is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a three-dimensional diagram of a bottom blocking device of a stage fire curtain installed on a stage fixing frame according to the utility model;

[0020] Figure 2 This is a three-dimensional diagram of a bottom sealing device of a stage fire curtain according to the utility model;

[0021] Figure 3 It is a three-dimensional diagram of a connecting frame assembly of a bottom sealing device of a stage fire curtain according to the utility model;

[0022] Figure 4 This is an exploded view of a connecting frame assembly of a bottom sealing device of a stage fire curtain according to the utility model;

[0023] Figure 5 This is a schematic structural diagram of a bottom blocking device for a stage fire curtain of the utility model when the fire curtain falls;

[0024] The names of the components corresponding to the various figure marks in the figure are: 1. baffle plate; 2. connecting frame assembly; 21. upper connecting frame; 22. lower connecting frame; 23. roller; 24. base plate; 25. adjusting screw; 211. stop side ear; 212. buffer member; 213. first hinge seat; 214. waist-shaped groove; 221. installation cavity; 222. limit plate; 3. rebound member; 31. rotating shaft; 4. fire curtain; 5. stage fixing frame. DETAILED DESCRIPTION

[0025] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0027] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0028] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0029] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0030] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0031] See also Figures 1 to 5 The utility model provides a bottom blocking device for a stage fire curtain, comprising a shielding plate 1, a plurality of connecting frame components 2 and a rebound member 3.

[0032] See also Figure 1 The shielding plate 1 is rotatably mounted on the upper front end of the external stage fixing frame 5 and is located directly below the fire curtain 4, and is used to block the gap between the stage fixing frame 5 and the fire curtain 4 when the fire curtain 4 is raised. The shielding plate 1 is rectangular.

[0033] See also Figures 1 to 3 , multiple connecting frame assemblies 2 are arranged at intervals along the length direction of the shielding plate 1. The use of multiple connecting frame assemblies 2 makes the connection more stable and reliable, and the use safety is higher. The connecting frame assembly 2 is installed between the shielding plate 1 and the stage fixing frame 5, and is used to flip and open the shielding plate 1 when the fire curtain 4 falls; the connecting frame assembly 2 includes an upper connecting frame 21 and a lower connecting frame 22 that are arranged perpendicular to each other, and the lower connecting frame 22 can rotate relative to the upper connecting frame 21. The upper connecting frame 21 is installed on the stage fixing frame 5, and the lower connecting frame 22 is fixed on the upper end surface of the shielding plate 1; the rebound member 3 is installed between the upper connecting frame 21 and the lower connecting frame 22, and is used to reset the shielding plate 1 after flipping.

[0034] In some embodiments, Figure 3 and Figure 5 As shown, the front end of the lower connecting frame 22 is provided with an installation cavity 221, and a roller 23 is rotatably installed in the installation cavity 221. The roller 23 protrudes from the upper surface of the lower connecting frame 22, so that the fire curtain 4 first contacts the roller 23 when it falls. The roller 23 is added, and when the fire curtain falls, it contacts the roller first, and the friction generated between the fire curtain and the lower connecting frame can be reduced by the roller.

[0035] In some embodiments, Figure 3 and Figure 4 As shown, the rear end of the lower connecting frame 22 is symmetrically provided with limit plates 222 on both sides, and the limit plates 222 are used to limit the position of the shielding plate 1 after it is reset; the upper connecting frame 21 is symmetrically provided with stopper side ears 211 corresponding to the limit plates 222. The stopper side ears 211 are installed with buffers 212, and the buffers 212 are used to buffer the limit plates 222. When the shielding plate 1 is reset and closed, the limit plates 222 are placed on the buffers 212; wherein, the buffers 212 can be made of soft materials, which is conducive to reducing noise and wear.

[0036] In some embodiments, Figure 3 and Figure 4 As shown, the connecting frame assembly 2 also includes a base plate 24 fixed on the stage fixing frame 5, and the upper connecting frame 21 is rotatably mounted on the base plate 24; an adjusting screw 25 is installed between the upper connecting frame 21 and the base plate 24, and the adjusting screw 25 is used to adjust the angle of the upper connecting frame 21, and then adjust the angle of the shielding plate 1. One end of the adjusting screw 25 is slidably hinged on the upper connecting frame 21, and the other end passes through the base plate 24; the adjusting screw 25 is threadedly connected with a fastening nut (not shown in the figure) on both sides of the base plate 24. During adjustment, by screwing the fastening nut, the extension amount of the adjusting screw relative to the base plate can be adjusted, so that the upper connecting frame 21 can be rotated relative to the base plate 24 to adjust the angle of the upper connecting frame 21, and then adjust the installation angle of the shielding plate 1, which is more flexible and more convenient to install.

[0037] In some embodiments, Figure 3 and Figure 4 As shown, the upper end of the upper connecting frame 21 is symmetrically provided with a first hinge seat 213, one end of the adjusting screw 25 is installed with a first hinge shaft, and the first hinge seat 213 is provided with a waist-shaped groove 214 for the first hinge shaft to move. The base plate 24 is symmetrically provided with a second hinge seat 241 facing the upper connecting frame 21, and the second hinge seat 241 is placed in the upper connecting frame 21 and is hinged to each other through the second hinge shaft.

[0038] In some embodiments, Figure 3 and Figure 4As shown, the upper end of the resilient member 3 is fixed to the upper connecting frame 21, and a rotating shaft 31 is rotatably mounted on the lower end thereof. The rotating shaft 31 can be reset after rotation, for example, a torsion spring can be used to rotate and reset it. The rotating shaft 31 is placed in the lower connecting frame 22 and fixed to each other by fasteners.

[0039] The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0040] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A bottom blocking device for a stage fire curtain, characterized in that: include: A shielding plate (1) is rotatably mounted on the upper front side of the external stage fixing frame (5) and is located directly below the fire curtain (4) and is used to shield the gap between the stage fixing frame (5) and the fire curtain (4) when the fire curtain (4) is raised; A plurality of connecting frame assemblies (2) are arranged at intervals along the length direction of the shielding plate (1); the connecting frame assemblies (2) are installed between the shielding plate (1) and the stage fixing frame (5) and are used to flip and open the shielding plate (1) when the fire curtain (4) falls down; the connecting frame assemblies (2) include an upper connecting frame (21) and a lower connecting frame (22) which are arranged perpendicular to each other, the lower connecting frame (22) can rotate relative to the upper connecting frame (21), the upper connecting frame (21) is installed on the stage fixing frame (5), and the lower connecting frame (22) is fixed on the upper end surface of the shielding plate (1); A resilient member (3) is installed between the upper connecting frame (21) and the lower connecting frame (22) and is used for resetting the shielding plate (1) after it is turned over.

2. The bottom sealing device of the stage fire curtain according to claim 1, characterized in that: The front end of the lower connecting frame (22) is provided with a mounting cavity (221), and a roller (23) is rotatably mounted in the mounting cavity (221). The roller (23) protrudes from the upper surface of the lower connecting frame (22), so that the fire curtain (4) first contacts the roller (23) when it falls.

3. The bottom sealing device of the stage fire curtain according to claim 1, characterized in that: Limiting plates (222) are symmetrically arranged on both sides of the rear end of the lower connecting frame (22), and the limiting plates (222) are used to limit the position of the shielding plate (1) after it is reset; and stopper side ears (211) corresponding to the limiting plates (222) are symmetrically arranged on both sides of the upper connecting frame (21).

4. The bottom sealing device of the stage fire curtain according to claim 3, characterized in that: A buffer component (212) is installed on the stop side ear (211), and the buffer component (212) is used to buffer the limit plate (222).

5. The bottom sealing device of the stage fire curtain according to claim 1, characterized in that: The connecting frame assembly (2) further comprises a base plate (24) fixed on the stage fixing frame (5), and the upper connecting frame (21) is rotatably mounted on the base plate (24); an adjusting screw (25) is installed between the upper connecting frame (21) and the base plate (24), and the adjusting screw (25) is used to adjust the angle of the upper connecting frame (21), thereby adjusting the angle of the shielding plate (1).

6. The bottom sealing device of the stage fire curtain according to claim 5, characterized in that: One end of the adjusting screw rod (25) is slidably hinged on the upper connecting frame (21), and the other end passes through the base plate (24); the adjusting screw rod (25) is threadedly connected with fastening nuts on both sides of the base plate (24).

7. The bottom sealing device of the stage fire curtain according to claim 6, characterized in that: A first hinge seat (213) is symmetrically arranged at the upper end of the upper connecting frame (21), a first hinge shaft is installed at one end of the adjusting screw rod (25), and a waist-shaped groove (214) for the first hinge shaft to move is arranged on the first hinge seat (213).

8. The bottom sealing device of the stage fire curtain according to claim 6, characterized in that: The base plate (24) is symmetrically provided with a second hinge seat (241) facing the upper connecting frame (21); the second hinge seat (241) is placed in the upper connecting frame (21) and is hinged to each other via a second hinge shaft.

9. The bottom sealing device of the stage fire curtain according to claim 1, characterized in that: The upper end of the resilient member (3) is fixed to the upper connecting frame (21), and a rotating shaft (31) is rotatably mounted on the lower end of the resilient member (3). The rotating shaft (31) is placed in the lower connecting frame (22) and is fixed to each other via a fastener.

Images