Double-door panel type smoke exhaust port

Abstract

The utility model discloses a double -open door board formula smoke outlet, its has two vane in the valve body and is provided with two leaves, can improve ventilation efficiency, the outside extension of valve body is provided with the outer edge, and the hinge vane is close to the outer edge one side on the valve body, can remove the vane outward, make internal space increase, the front and rear sides of the hinge axle of every vane are provided with elastic puller and pull steel cable respectively, and pull steel cable extends to the outside of valve body and is connected with external control device, and the opening and closing of two vane can be realized through the external pull control of personnel, the utility model discloses simple structure design, novel, its improved ventilation efficiency, avoided the occupation of indoor area space, is an ideal double -open door board formula smoke outlet.

Description

Technical Field

[0001] This utility model relates to the field of fire smoke exhaust, specifically to a double-door type smoke exhaust outlet. Background Technology

[0002] As is well known, in the field of smoke exhaust fan technology, the commonly used plate-type smoke exhaust outlet has only one set of blades. It is installed by pre-drilling holes in the wall and then fixing the exhaust outlet to those holes. This type of exhaust outlet has technical drawbacks during installation and use, mainly in the following aspects: 1. When the exhaust outlet is open, its blades protrude forward and backward from the valve body. This structure is generally unaffected in the outdoor portion, but the protruding portion indoors occupies installation space and affects the installation of indoor equipment; 2. Furthermore, when designing and manufacturing existing double-door plate-type smoke exhaust outlets, if high-power exhaust or ventilation is required, the best approach is to use two units in combination, because it only has a single blade and low exhaust power. However, this method of using two units in combination occupies space and increases installation costs.

[0003] Therefore, the urgent technical problem to be solved by those skilled in the art is to design an improvement scheme that can improve the structure of the existing plate-type smoke exhaust outlets to address the problems of low ventilation power and large space occupation during assembly, so as to make them more in line with current actual needs. Utility Model Content

[0004] To overcome the shortcomings of existing technology, this utility model discloses a double-door type smoke exhaust port, as shown in the attached figure. It improves ventilation efficiency by assembling blades that extend outward and adopting a central flipping structure. At the same time, it uses a pulling device to open the two blades.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A double-door type smoke exhaust port includes a valve body with two blades arranged in opposite directions inside the valve body; an outer sealing edge extends from the outer side of the valve body, and a blade is hinged to the valve body near the outer sealing edge; an elastic tension member and a tension cable are respectively provided on the front and rear sides of the hinge shaft of each blade, and the tension cable extends to the outside of the valve body and is connected to an external control device.

[0007] A positioning plate is provided on the valve body to cooperate with the traction steel cable. The positioning plate is provided with a steel cable through hole. A stop bolt is also provided on the valve body or the positioning plate.

[0008] The valve body is provided with a side fixing plate, and the side fixing plate is provided with a number of positioning holes for fixing one end of the elastic tension member, and the other end of the elastic tension member is fixed to the blade.

[0009] The valve body is provided with a support member to achieve positioning and blocking after the blade flips.

[0010] The external control device includes a housing with a rotating wheel inside. The rotating wheel has a force-applying part that communicates with the outside of the housing. The rotating wheel is rotatably fixed inside the housing by a first torsion spring. The rotating wheel has rotating teeth that, together with an external positioning paddle, form a ratchet assembly. The positioning paddle is fixed to a positioning paddle seat by a second torsion spring. The positioning paddle seat is directly or indirectly connected to a ratchet release drive device.

[0011] The ratchet release drive device is either an electromagnetic actuator or a manual actuator.

[0012] The present invention, with the above structural configuration, has the following advantages compared with the prior art: The present invention features two blades arranged in opposite directions within the valve body, which improves ventilation efficiency; an outer sealing edge extends from the outside of the valve body, and blades are hinged on the side of the valve body near the outer sealing edge, allowing the blades to be moved outwards and increasing the internal space; elastic pulling members and pulling cables are respectively provided on the front and rear sides of the hinge shaft of each blade, with the pulling cables extending to the outside of the valve body and connected to an external control device; the opening and closing of the two blades can be achieved by external pulling control; the present invention has a simple and novel structural design, which improves ventilation efficiency, avoids occupying indoor space, and is an ideal double-door type smoke exhaust outlet. Attached Figure Description

[0013] Figure 1 : A three-dimensional structural diagram of this utility model;

[0014] Figure 2 : Schematic diagram of the outdoor structure of this utility model;

[0015] Figure 3 : Schematic diagram of the indoor side structure of this utility model;

[0016] Figure 4 : Side view structural schematic diagram of this utility model;

[0017] Figure 5 : Schematic diagram of the internal structure of the external control device;

[0018] In the diagram: 1. Valve body, 11. Outer sealing edge, 2. Blade, 20. Hinge shaft, 3. Tension spring, 4. Pull cable, 5. Pull seat, 6. External control device, 60. Sleeve, 61. Box body, 62. Electromagnetic actuator, 621. Drive end, 63. Hinge rod, 64. Positioning paddle seat, 641. Positioning paddle, 642. Second torsion spring, 65. Rotating wheel, 651. Rotating tooth, 652. Cable groove, 653. Force application hexagonal hole, 654. First torsion spring, 66. Cable guide seat, 7. Positioning plate, 70. Bolt stop seat, 71. Bolt stop component, 72. Side fixing plate, 73. Support plate, 74. Cable through hole. Detailed Implementation

[0019] The present invention will be described in detail below through specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. However, it should be noted that the specific embodiments described below do not limit the technical solution. Those skilled in the art can make further technical extensions under the guidance of the following technical solutions. The scope of protection of this patent application is determined by the claims.

[0020] Example 1: As shown in the attached drawings, a double-door panel type smoke exhaust port includes a valve body 1, and an outer sealing edge 11 is provided on the outer side of the valve body 1, and the outer sealing edge 11 is located outdoors.

[0021] Two blades 2 are disposed inside the valve body 1. Those skilled in the art can use left-right or up-down opening methods. In this embodiment, the up-down opening method is selected. The blades 2 are fixed to the inner side of the outer sealing edge 11 by a hinge shaft 20. This design can extend the flipping structure of the blades 2 to the outside, avoiding the blades from protruding and occupying indoor space after opening.

[0022] To enable the blades to flip, each blade 2 has an elastic tension member and a tension cable 4 on its front and rear sides of the hinge shaft 20. In this embodiment, the valve body 1 is provided with a side fixing plate 72, or the side fixing plate 72 is fixed to the positioning plate 7 on the rear side of the valve body 1. The side fixing plate 72 is provided with several positioning holes for fixing one end of the elastic tension member, and the other end of the elastic tension member is fixed to the blade 2. In this embodiment, the elastic tension member is a tension spring 3, but those skilled in the art can also use rubber bands or elastic tension bars as substitutes.

[0023] The tension cable 4 extends to the outside of the valve body 1 and is connected to the external control device 6. When the double-door type smoke exhaust port is installed high on the wall, the opening and closing of the two blades 2 can be controlled by the external control device 6.

[0024] To ensure smooth movement of the tension cable 4 between the external control device 6 and the two blades 2, a positioning plate 7 is horizontally welded onto one side of the valve body 1 chamber in conjunction with the tension cable 4. The positioning plate 7 has a cable through-hole 74 and a bolt stop 70. The bolt stop 70 secures the bolt stop 71 in place. After the tension cable 4 and the sleeve 60 extend simultaneously from the external control device 6, the bolt stop 71 separates the tension cable 4 from the sleeve 60. Then, the cable is diverted in the area of ​​the cable through-hole 74 to control the tension of the two blades. The sleeve 60 is designed to prevent damage caused by friction between the tension cable 4 and external surfaces.

[0025] When this utility model is in use, the two blades 2 are driven to flip horizontally and open by pulling the steel cable 4. However, in order to avoid excessive opening, this utility model also provides a support plate 73 on the valve body 1 as a support to achieve positioning and blocking after the blades 2 are flipped.

[0026] This utility model uses an external control device to drive the traction of the steel cable 4. However, in actual operation, the external control device must have three functions: traction, positioning, and reset. Existing external control devices can achieve these functions but are unstable. To improve stability, this utility model discloses the following structure: an external control device 6, including a housing 60, with a rotating wheel 65 inside the housing 60. The rotating wheel 65 has a hexagonal force-applying hole 653 as a force-applying part, and the hexagonal force-applying hole 653 communicates with the outside of the housing 60; the rotating wheel 6... 5 is rotatably fixed inside the housing 60 by the first torsion spring 654. The rotating wheel 65 is provided with rotating teeth 651 and forms a ratchet assembly with the external positioning paddle 641. The positioning paddle 641 is fixed on the positioning paddle seat 64 by the second torsion spring 642. The positioning paddle seat 64 is indirectly connected to the ratchet release drive device through the hinge rod 63. In this embodiment, the ratchet release drive device is an electromagnetic driver 62. The driving end 621 of the electromagnetic driver 62 is hinged to one end of the hinge rod 63. The hinge rod 63 is movably connected to the housing 60, and the other end of the hinge rod 63 is hinged to the positioning paddle seat 64.

[0027] Those skilled in the art can also replace the electromagnetic actuator 62 with a manual actuator to achieve the functions of pulling, positioning, and resetting the blade 2.

[0028] With the electromagnetic actuator 62 configured as described above, when an external person uses a hexagonal wrench to apply force through the hexagonal hole 653 to drive the rotating wheel 65 to rotate against the torque of the first torsion spring 654, the pulling cable 4 can be driven to open the blade. After opening, the positioning plate 641 is locked onto the rotating tooth 651 to prevent the rotating wheel 65 from slipping and rotating in the opposite direction. The above components can achieve the functions of pulling and positioning. When driving the blade to close, the electromagnetic actuator 62 is energized, which drives the hinge rod 63 to swing, and at the same time pulls the positioning plate seat 64 and the positioning plate 641 to swing. After the positioning plate 641 disengages from the rotating tooth 651, the rotating wheel 65 rotates in the opposite direction under the tension of the blade 2 and the tension spring 3 to close.

[0029] The present invention provides a structure in which the blades 2 are moved outward to increase the internal space. Each blade 2 has an elastic tension member and a tension cable 4 on its front and rear sides of the hinge shaft. The tension cable 4 extends to the outside of the valve body 1 and is connected to the external control device 6. The opening and closing of the two blades can be achieved by personnel pulling from the outside. The present invention has a simple and novel structural design, which improves ventilation efficiency and equipment operation stability, avoids the occupation of indoor space, and is an ideal double-door type smoke exhaust outlet.

Claims

1. A double-door type smoke exhaust vent, characterized in that: It includes a valve body, in which two blades are disposed in opposite directions; an outer sealing edge extends from the outside of the valve body, and a blade is hinged to the valve body near the outer sealing edge; an elastic tension member and a tension cable are respectively disposed on the front and rear sides of the hinge shaft of each blade, and the tension cable extends to the outside of the valve body and is connected to an external control device. A positioning plate is provided on the valve body to cooperate with the traction steel cable. The positioning plate is provided with a steel cable through hole. A stop bolt is also provided on the valve body or the positioning plate.

2. The double-door panel type smoke exhaust vent according to claim 1, characterized in that: The valve body is provided with a side fixing plate, and the side fixing plate is provided with a number of positioning holes for fixing one end of the elastic tension member, and the other end of the elastic tension member is fixed to the blade.

3. A double-door panel type smoke exhaust vent according to claim 1, characterized in that: The valve body is provided with a support member to achieve positioning and blocking after the blade flips.

4. A double-door panel type smoke exhaust vent according to claim 1, characterized in that: The external control device includes a housing with a rotating wheel inside. The rotating wheel has a force-applying part that communicates with the outside of the housing. The rotating wheel is rotatably fixed inside the housing by a first torsion spring. The rotating wheel has rotating teeth that, together with an external positioning paddle, form a ratchet assembly. The positioning paddle is fixed to a positioning paddle seat by a second torsion spring. The positioning paddle seat is directly or indirectly connected to a ratchet release drive device.

5. A double-door panel type smoke exhaust vent according to claim 4, characterized in that: The ratchet release drive device is either an electromagnetic actuator or a manual actuator.

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