Linkage type two-way electric closed valve for civil air defense

Abstract

The utility model relates to the technical field of civil air defense valves, and discloses a linkage type two-way electric closed valve for civil air defense, which comprises a valve body, two sealing discs are rotatably arranged in the valve body and are positioned at two ends of the valve body, rubber sealing rings are arranged on the surfaces of the sealing discs, rotating shafts are arranged at the tops of the sealing discs, and the rotating shafts are arranged on the valve body. The rotating shaft is rotationally connected with the top of the valve body, a driven gear is arranged at the top end of the rotating shaft, a motor frame is arranged at the top end of the valve body, a driving motor is arranged at the top end of the motor frame, and a driving gear is arranged on a transmission shaft of the driving motor; two-way sealing can be carried out on the interior of the valve body through the two sealing discs, the sealing effect is better, leakage is not prone to being caused, meanwhile, the driving gear and the driven gear can be linked through the transmission mechanism, opening and closing of the sealing discs are synchronously controlled under the action of the driving motor, and the sealing effect is good. And independent and separate control can be carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of civil air defense valves, in particular to a linkage type two-way electric closed valve for civil air defense. Background Art

[0002] With the rapid development of the current society, and in order to improve the quality of life of the current population, civil air defense projects have also been vigorously developed accordingly. The closed valve is a kind of civil air defense equipment, installed on horizontal or vertical pipes, suitable for ventilation and exhaust pipes with air as the medium of civil air defense, national defense and civil industrial processes. After being closed during wartime, it can prevent poisonous gas from polluting the interior of the civil air defense project, thereby ensuring the safety of people's lives. After opening, it can play a role in ventilation;

[0003] After searching, a kind of airtight valve for human defense disclosed in application number CN201922129283.0 includes a valve body, a bracket is fixedly installed on the upper surface of the valve body, a rotating rod is rotatably installed at the center of the bracket, a card pin is fixedly installed on the outer surface of the position where the rotating rod and the bracket intersect, a card slot matching the card pin is provided on the bracket, a sealing gasket is placed at the intersection of the rotating rod and the valve body, the sealing gasket is fixedly installed with the valve body, and the sealing gasket is rotatably installed with the rotating rod, a ball matching the inner wall of the valve body is fixedly installed at the bottom end of the rotating rod, a cleaning end is fixedly installed on the inner side of the valve body close to the bracket, and an annular groove is provided on the upper surface of the cleaning end. The utility model has a novel structure, is easy to operate, has high practicality, and is suitable for promotion;

[0004] However, the above method still has the following defects in actual use: it realizes one-way sealing of the valve body by setting a ball that matches the inner wall of the valve body, which is easy to cause leakage at the connection point after long-term use. Utility Model Content

[0005] The utility model aims to provide a linkage type two-way electric sealing valve for civil air defense, which has the effect of facilitating two-way sealing.

[0006] The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: a linked two-way electric closed valve for civil defense, including a valve body, a sealing disk is provided for rotation inside the valve body, two sealing disks are provided, located at both ends of the valve body, a rubber sealing ring is provided on the surface of the sealing disk, a rotating shaft is provided on the top of the sealing disk, which is rotatably connected to the top of the valve body, a driven gear is provided on the top of the rotating shaft, a motor frame is provided on the top of the valve body, a driving motor is provided on the top of the motor frame, a driving gear is provided on the transmission shaft of the driving motor, and the driving gear and the driven gear are connected through a transmission mechanism.

[0007] The utility model is further configured as follows: a mounting frame is provided at the top of the valve body, a protective shell is provided at the top of the mounting frame, and the protective shell is connected to the mounting frame via a mounting screw, and an observation window is provided at the side of the protective shell.

[0008] The utility model is further configured as follows: the transmission mechanism includes a threaded seat, two threaded seats are provided, and are arranged at the top of the protective shell; the internal thread of the threaded seat is provided with an adjusting screw; the top of the adjusting screw is provided with a rotating wheel; the bottom end of the adjusting screw is rotatably provided with a mounting plate; the bottom end of the mounting plate is rotatably provided with a connecting shaft; and the bottom end of the connecting shaft is provided with a transmission gear.

[0009] The utility model is further configured as follows: both sides of the mounting plate protrude outwards, and a guide rod is provided at the top of the protrusion, the guide rod is slidably connected to the top of the protective shell, and a limit plate is provided at the top of the guide rod.

[0010] The utility model is further configured as follows: a mounting seat is provided at the top end of the valve body, two mounting seats are provided, a sealed damping bearing is provided inside the mounting seat, and the sealed damping bearing is rotatably connected to the rotating shaft.

[0011] The utility model is further configured as follows: a clamping groove is provided on the surface of the sealing disk, the rubber sealing ring is sleeved on the outside of the sealing disk, and a clamping block is provided on the inner side of the rubber sealing ring, and the clamping block is clamped and connected with the clamping groove.

[0012] The utility model is further configured as follows: mounting flanges are provided at both ends of the valve body.

[0013] To sum up, the utility model has the following beneficial effects: the utility model can realize two-way sealing of the interior of the valve body by means of the two sealing disks, so that the sealing effect is better and leakage is not easy to cause; at the same time, the driving gear and the driven gear can be linked through the transmission mechanism, and the opening and closing of the sealing disk can be synchronously controlled under the action of the driving motor, and can be controlled separately. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the utility model after the sealing disk and the rubber sealing ring are separated;

[0017] Figure 4 It is a partial structural schematic diagram of the utility model;

[0018] Figure 5 For this utility model Figure 2 A is an enlarged structural diagram of FIG.

[0019] In the figure: 1. valve body; 101. mounting flange; 102. mounting seat; 103. sealing damping bearing; 104. mounting frame; 2. sealing disk; 201. snap-fit ​​groove; 202. rubber sealing ring; 203. snap-fit ​​block; 204. rotating shaft; 205. driven gear; 3. motor frame; 301. driving motor; 302. driving gear; 4. transmission mechanism; 401. threaded seat; 402. adjusting screw; 403. rotating wheel; 404. mounting plate; 405. connecting shaft; 406. transmission gear; 407. guide rod; 408. limit disk; 5. protective shell; 501. mounting screw; 502. observation window. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] See also Figures 1 to 5 In the embodiment of the utility model, a linkage type two-way electric airtight valve for civil air defense comprises a valve body 1, and mounting flanges 101 are provided at both ends of the valve body 1 to facilitate the connection of the valve body 1 with the exhaust duct. A sealing disc 2 is provided for rotation inside the valve body 1. Two sealing discs 2 are provided, which are located at both ends of the valve body 1. A rubber sealing ring 202 is provided on the surface of the sealing disc 2 to improve the sealing performance between the sealing disc 2 and the inner wall of the valve body 1. A rotating shaft 204 is provided at the top of the sealing disc 2, which is rotatably connected to the top of the valve body 1. A driven gear 205 is provided at the top of the rotating shaft 204. A motor frame 3 is provided at the top of the valve body 1. A driving motor 301 is provided at the top of the motor frame 3. The opening and closing of the valve body 1 can be automatically controlled by the driving motor 301. The transmission shaft of the driving motor 301 is provided with a driving gear 302, and the driving gear 302 is connected to the driven gear 205 through a transmission mechanism 4, so that the two sealing discs 2 can be linked to each other, thereby opening and closing synchronously.

[0022] In this embodiment, preferably, a mounting seat 102 is provided at the top of the valve body 1, and two mounting seats 102 are provided. A sealed damping bearing 103 is provided inside the mounting seat 102, and the sealed damping bearing 103 is rotatably connected to the rotating shaft 204, which guides the rotation of the sealing disk 2, and the connection can be sealed;

[0023] In this embodiment, preferably, a snap-fit ​​groove 201 is provided on the surface of the sealing disk 2, and the rubber sealing ring 202 is sleeved on the outside of the sealing disk 2, and a snap-fit ​​block 203 is provided on the inner side of the rubber sealing ring 202, and the snap-fit ​​block 203 is snap-fitted and connected with the snap-fit ​​groove 201, so as to facilitate the installation of the rubber sealing ring 202 on the outside of the sealing disk 2, and through holes are provided on the surfaces of the rubber sealing ring 202 and the snap-fit ​​block 203, so as to allow the rotating shaft 204 to pass through, so as not to interfere with the installation of the rubber sealing ring 202;

[0024] In this embodiment, preferably, a mounting frame 104 is provided at the top of the valve body 1, and a protective shell 5 is provided at the top of the mounting frame 104 to protect the transmission mechanism 4, and the protective shell 5 is connected to the mounting frame 104 by a mounting screw 501, which is convenient for disassembly and assembly of the protective shell 5 and inspection of the internal components. At the same time, an observation window 502 is provided on the side of the protective shell 5 to facilitate observation of the matching of the transmission gear 406 with the driving gear 302 and the driven gear 205;

[0025] In this embodiment, preferably, the transmission mechanism 4 includes a threaded seat 401, two threaded seats 401 are provided, and are arranged at the top of the protective shell 5. The internal thread of the threaded seat 401 is provided with an adjusting screw 402, and the top of the adjusting screw 402 is provided with a rotating wheel 403. The bottom end of the adjusting screw 402 is rotatably provided with a mounting plate 404, and the bottom end of the mounting plate 404 is rotatably provided with a connecting shaft 405. The bottom end of the connecting shaft 405 is provided with a transmission gear 406. The rotating wheel 403 drives the adjusting screw 402 to rotate, and the adjusting screw 402 is rotatably connected to the mounting plate 404, thereby driving the transmission gear 406 below the mounting plate 404 to move up and down;

[0026] In this embodiment, preferably, both sides of the mounting plate 404 protrude outward, and a guide rod 407 is provided at the top of the protrusion. The guide rod 407 is slidably connected to the top of the protective shell 5, and plays a guiding and limiting role in the movement of the mounting plate 404. A limit plate 408 is provided at the top of the guide rod 407. When the limit plate 408 is in contact with the top of the protective shell 5, the transmission gear 406 meshes with the driving gear 302 and the driven gear 205 to limit the position of the transmission gear 406.

[0027] When in use, first connect the valve body 1 to the exhaust duct through the mounting flange 101. When it is necessary to open and close the sealing disk 2, rotate the rotating wheel 403 to drive the adjusting screw 402 to rotate. The adjusting screw 402 is rotatably connected to the mounting plate 404. Under the sliding cooperation between the guide rod 407 and the protective shell 5, the transmission gear 406 under the mounting plate 404 is driven to move downward. When the limit plate 408 is in contact with the top of the protective shell 5, the transmission gear 406 is meshed with the driving gear 302 and the driven gear 205, so that the two sealing disks 2 are linked, and the driving motor 301 is started. The driving motor 301 drives the driving gear 302 to rotate, and the driving gear 302 is meshed with the transmission gear 406. The transmission gear 406 is driven to rotate, and then the two sealing disks 2 are driven to rotate synchronously under the meshing cooperation between the driving gear 302 and the transmission gear 406, and the driven gear 205 is meshed with the driven gear 205, so as to realize the two-way opening and closing of the valve body 1.

[0028] It is particularly important to note that when the valve body 1 needs to be opened and closed in one direction, one of the transmission gears 406 is controlled to be separated from the driving gear 302 and the driven gear 205, and the other transmission gear 406 is controlled to be engaged with the corresponding driving gear 302 and the driven gear 205, so as to realize the rotation of a single sealing disk 2 and achieve one-way opening and closing.

[0029] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A linkage type two-way electric sealed valve for civil air defense, comprising a valve body (1), characterized in that: A sealing disk (2) is rotatably provided inside the valve body (1). Two sealing disks (2) are provided and are located at both ends of the valve body (1). A rubber sealing ring (202) is provided on the surface of the sealing disk (2). A rotating shaft (204) is provided at the top of the sealing disk (2) and is rotatably connected to the top of the valve body (1). A driven gear (205) is provided at the top of the rotating shaft (204). A motor frame (3) is provided at the top of the valve body (1). A driving motor (301) is provided at the top of the motor frame (3). A driving gear (302) is provided on the transmission shaft of the driving motor (301), and the driving gear (302) is connected to the driven gear (205) via a transmission mechanism (4).

2. The linkage type two-way electric sealed valve for civil air defense according to claim 1 is characterized in that: A mounting frame (104) is provided at the top of the valve body (1), a protective shell (5) is provided at the top of the mounting frame (104), and the protective shell (5) is connected to the mounting frame (104) via a mounting screw (501), and an observation window (502) is provided on the side of the protective shell (5).

3. The linkage type two-way electric sealed valve for civil air defense according to claim 2 is characterized in that: The transmission mechanism (4) comprises a threaded seat (401), two threaded seats (401) are provided and arranged at the top end of the protective shell (5), the internal threads of the threaded seat (401) are provided with an adjusting screw (402), the top end of the adjusting screw (402) is provided with a rotating wheel (403), the bottom end of the adjusting screw (402) is rotatably provided with a mounting plate (404), the bottom end of the mounting plate (404) is rotatably provided with a connecting shaft (405), and the bottom end of the connecting shaft (405) is provided with a transmission gear (406).

4. The linkage type two-way electric sealed valve for civil air defense according to claim 3 is characterized in that: Both sides of the mounting plate (404) protrude outwards, and a guide rod (407) is provided at the top of the protrusions. The guide rod (407) is slidably connected to the top of the protective shell (5), and a limit plate (408) is provided at the top of the guide rod (407).

5. The linkage type two-way electric sealed valve for civil air defense according to claim 1 is characterized in that: A mounting seat (102) is provided at the top end of the valve body (1), two mounting seats (102) are provided, a sealed damping bearing (103) is provided inside the mounting seat (102), and the sealed damping bearing (103) is rotatably connected to the rotating shaft (204).

6. The linkage type two-way electric sealed valve for civil air defense according to claim 1 is characterized in that: A snap-fit ​​groove (201) is provided on the surface of the sealing disk (2), the rubber sealing ring (202) is sleeved on the outside of the sealing disk (2), and a snap-fit ​​block (203) is provided on the inner side of the rubber sealing ring (202), and the snap-fit ​​block (203) is snap-fitted and connected with the snap-fit ​​groove (201).

7. The linkage type two-way electric sealed valve for civil air defense according to claim 1, characterized in that: Mounting flanges (101) are provided at both ends of the valve body (1).

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