Impact-resistant fireproof valve

Abstract

According to the impact-resistant type fireproof valve, a driving assembly is started to drive a sealing assembly to be switched back and forth between a ventilation state and a sealing state, so that a ventilation channel where a valve body is located is in a ventilation or sealing working state, and in the process that the sealing assembly is switched back and forth between the ventilation state and the sealing state, the sealing effect is good. And in the stable working state, the supporting piece can support the sealing assembly to prevent the structure of the sealing assembly from being damaged due to the fact that the pressure difference between the air inlet and the air outlet is too large.

Description

Technical Field

[0001] The present application relates to the technical field of fire dampers, and in particular to impact-resistant fire dampers. Background Art

[0002] The fire damper is a normally open valve, which is opened by the control center through 24V DC or manually, and automatically closed at 280℃, and must be reset manually. Its function is: when the smoke temperature reaches 280℃, people have basically evacuated, smoke exhaust is no longer practical, and the smoke is already carrying fire at this time, the valve automatically closes to prevent the spread of fire. The smoke exhaust vents of the system can also use normally closed fire exhaust vents, and the smoke exhaust fire dampers on the branch pipes can be eliminated.

[0003] The existing fire dampers have a relatively large pressure difference between the air inlet and the air outlet when in use, so that when the fire damper is closed for use or reset, the blades inside the fire damper are subjected to relatively large pressure, causing the blades to deform and causing the fire damper to lose its function. Summary of the invention

[0004] Based on this, it is necessary to provide an impact-resistant fire damper to address the problem that when a traditional fire damper is in use, the pressure difference between the air inlet and the air outlet is relatively large, resulting in the blades inside the fire damper being subjected to relatively high pressure when it is closed or reset, causing the blades to deform and causing the fire damper to lose its function.

[0005] The present application provides an impact-resistant fire damper, comprising:

[0006] A valve body is arranged as a part of the ventilation channel, one end of the valve body is arranged as an air inlet, and the other end of the valve body is arranged as an air outlet;

[0007] A sealing component is arranged in the valve body, and when the impact-resistant fire damper is in a non-working state, the sealing component is in a ventilating state, and when the impact-resistant fire damper is in a working state, the sealing component closes the valve body, and the sealing component turns into a sealing state;

[0008] A plurality of support members are provided, wherein the support members are slidably provided on the sealing assembly, and the support members move synchronously when the sealing assembly switches from a ventilating state to a sealing state;

[0009] The driving assembly is arranged in the valve body, and the top of the sealing assembly is inserted into the driving assembly. When in use, the driving assembly drives the sealing assembly to switch back and forth between the ventilation state and the sealing state.

[0010] The present application relates to an impact-resistant fire damper, which drives a sealing component to switch back and forth between a ventilation state and a sealing state by starting a driving component, so that the ventilation channel where the valve body is located is in a ventilation or sealing working state, and during the process of the sealing component switching back and forth between the ventilation state and the sealing state, as well as in the stable working state, the support member will provide support for the sealing component to prevent the structure of the sealing component from being damaged due to excessive pressure difference between the air inlet and the air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic structural diagram of an impact-resistant fire damper provided in one embodiment of the present application from one viewing angle.

[0012] Figure 2 A schematic structural diagram of an impact-resistant fire damper from another perspective provided in one embodiment of the present application.

[0013] Figure 3 A schematic diagram of the positional relationship between the support member and the first blade, and between the support member and the second blade in an impact-resistant fire damper provided in an embodiment of the present application.

[0014] Figure 4 A schematic diagram of a half-section of a valve body in an impact-resistant fire damper provided in one embodiment of the present application.

[0015] Figure 5 A schematic diagram of the positional relationship between a drive plate and a threaded rod in an impact-resistant fire damper provided in one embodiment of the present application.

[0016] Reference numerals:

[0017] 11. valve body; 111. air inlet; 112. air outlet; 12. sealing assembly; 121. first rotating member;

[0018] 121a, first support shaft; 121b, first blade; 121c, first reinforcing rib;

[0019] 122, second rotating member; 122a, second supporting shaft; 122b, second blade;

[0020] 122c, second reinforcing rib; 13, supporting member; 131, first sliding member; 132, second sliding member;

[0021] 133, first support plate; 14, drive assembly; 141, drive plate; 141a, first drive slot;

[0022] 141b, second driving groove; 142, threaded rod; 15, first limiting channel; 16, second limiting channel; 17, first limiting groove; 18, second limiting groove; 19, driving disk. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0024] like Figure 1 and Figure 2 As shown, in one embodiment of the present application, the impact-resistant fire damper includes a valve body 11 , a sealing assembly 12 , a support member 13 and a driving assembly 14 .

[0025] The valve body 11 is configured as a part of the ventilation channel. One end of the valve body 11 is configured as an air inlet 111 , and the other end of the valve body 11 is configured as an air outlet 112 .

[0026] The sealing component 12 is arranged in the valve body 11. When the impact-resistant fire damper is in a non-working state, the sealing component 12 is in a ventilated state. When the impact-resistant fire damper is in a working state, the sealing component 12 closes the valve body 11. The sealing component 12 is in a sealed state.

[0027] The supporting member 13 is provided in plurality and is slidably provided on the sealing assembly 12. When the sealing assembly 12 is switched from a ventilating state to a sealing state, the supporting member 13 moves synchronously.

[0028] The driving assembly 14 is arranged in the valve body 11. The top of the sealing assembly 12 is inserted into the driving assembly 14. When in use, the driving assembly 14 drives the sealing assembly 12 to switch back and forth between the ventilation state and the sealing state.

[0029] Specifically, the valve body 11 is configured as a part of the ventilation channel, a sealing assembly 12 is disposed in the valve body 11, and the sealing assembly 12 has a ventilation state and a sealing state, a support member 13 is also disposed on the sealing assembly 12 to provide support, and a driving assembly 14 is disposed on the valve body 11, and the driving assembly 14 is slidably connected to the sealing assembly 12 to help the sealing assembly 12 switch back and forth between the ventilation state and the sealing state.

[0030] In this embodiment, the driving assembly 14 is started to drive the sealing assembly 12 to switch back and forth between the ventilation state and the sealing state, so that the ventilation channel where the valve body 11 is located is in a ventilation or sealing working state, and the support member 13 provides support for the sealing assembly 12 during the process of switching back and forth between the ventilation state and the sealing state, as well as in the stable working state, to prevent the structure of the sealing assembly 12 from being damaged due to excessive pressure difference between the air inlet 111 and the air outlet 112.

[0031] like Figure 2As shown, in one embodiment of the present application, the sealing assembly 12 includes a first rotating member 121 and a second rotating member 122 .

[0032] The first rotating member 121 is rotatably disposed in the valve body 11 .

[0033] The second rotating member 122 is rotatably disposed in the valve body 11. The first rotating member 121 and the second rotating member 122 are rotatably matched to close or open the valve body 11.

[0034] In this embodiment, the function of closing the valve body 11 or opening the valve body 11 is achieved through the synchronous rotation cooperation between the first rotating member 121 and the second rotating member 122, and the first rotating member 121 and the second rotating member 122 rotate in opposite directions during synchronous rotation.

[0035] like Figure 3 and Figure 4 As shown, in one embodiment of the present application, the first rotating member 121 includes a first supporting shaft 121a, a first blade 121b and a first reinforcing rib 121c.

[0036] The first supporting shaft 121 a is rotatably disposed on the valve body 11 .

[0037] The first blade 121b is fixedly sleeved on the first supporting shaft 121a.

[0038] The first reinforcing rib 121c is provided in plurality. The first reinforcing rib 121c is provided close to the air outlet 112. The first reinforcing rib 121c is fixedly connected to the first blade 121b. The plurality of first reinforcing ribs 121c are arranged at equal intervals along the axial direction of the first support shaft 121a.

[0039] In this embodiment, a plurality of first reinforcing ribs 121c are provided on the first blade 121b to further enhance the impact resistance of the first blade 121b itself.

[0040] like Figure 3 and Figure 4 As shown, in one embodiment of the present application, the second rotating member 122 includes a second support shaft 122a, a second blade 122b and a second reinforcing rib 122c.

[0041] The second supporting shaft 122 a is rotatably disposed on the valve body 11 .

[0042] The second blade 122b is fixedly sleeved on the second support shaft 122a.

[0043] The second reinforcing ribs 122c are provided in plurality. The second reinforcing ribs 122c are provided close to the air outlet 112. The second reinforcing ribs 122c are fixedly connected to the second blades 122b. The plurality of second reinforcing ribs 122c are arranged at equal intervals along the axial direction of the second support shaft 122a.

[0044] The first blade 121b cooperates with the second blade 122b to close the valve body 11. Each of the first reinforcing ribs 121c is disposed colinearly with at least one of the second reinforcing ribs 122c.

[0045] In this embodiment, the impact resistance of the first blade 121b is further improved by providing a plurality of second reinforcing ribs 122c on the second blade 122b. At the same time, each first reinforcing rib 121c on the first blade 121b has a corresponding collinear second reinforcing rib 122c on the second blade 122b. The first reinforcing rib 121c and the second reinforcing rib 122c can also stabilize or guide the airflow passing through the valve body 11, thereby improving the stability of the airflow or guiding the airflow.

[0046] like Figure 3 As shown, in one embodiment of the present application, the support member 13 includes a first sliding member 131 , a second sliding member 132 and a first support plate 133 .

[0047] One end of the first sliding member 131 is slidably disposed on one of the first reinforcing ribs 121 c, and the other end of the first sliding member 131 is suspended.

[0048] One end of the second sliding member 132 is slidably disposed on one of the second reinforcing ribs 122c, and the other end of the second sliding member 132 is suspended.

[0049] The first support plate 133 is disposed between the first sliding member 131 and the second sliding member 132. One end of the first support plate 133 is rotatably connected to a suspended end of the first sliding member 131. The other end of the first support plate 133 is rotatably connected to a suspended end of the second sliding member 132.

[0050] The first sliding member 131 and the second sliding member 132 are both disposed between the first supporting shaft 121 a and the second supporting shafts.

[0051] In this embodiment, a first sliding member 131 is slidably set on a first reinforcing rib 121c, and a second sliding member 132 is slidably set on a second reinforcing rib 122c corresponding to the first reinforcing rib 121c, and a first supporting channel (not shown in the figure) and a second supporting channel (not shown in the figure) are respectively opened at both ends of the first support plate 133. The first sliding member 131 is slidably connected to the first supporting channel, and the second sliding member 132 is slidably connected to the second supporting channel, so that the support member 13 can provide a stable supporting force when the first blade 121b and the second blade 122b cooperate to open or close the valve body 11. At the same time, the setting of the support member 13 can also limit the rotation direction of the first blade 121b and the second blade 122b.

[0052] like Figure 5 As shown, in one embodiment of the present application, the driving assembly 14 includes a driving plate 141 and a threaded rod 142 .

[0053] The driving plate 141 is slidably disposed on the valve body 11. The top of the first blade 121b is slidably connected to one end of the driving plate 141. The top of the second blade 122b is slidably connected to the other end of the driving plate 141.

[0054] The threaded rod 142 is rotatably disposed on the valve body 11. The threaded rod 142 passes through the middle of the driving plate 141. The threaded rod 142 is threadedly connected to the driving plate 141.

[0055] In this embodiment, the drive plate 141 is driven to slide on the valve body 11 by rotating the threaded rod 142. As the drive plate 141 slides on the valve body 11, the top of the first blade 121b is slidably connected to one end of the drive plate 141, and the top of the second blade 122b is slidably connected to the other end of the drive plate 141, thereby driving the first blade 121b and the second blade 122b to cooperate in opening or closing the valve body 11.

[0056] like Figure 5 As shown, in one embodiment of the present application, the valve body 11 is provided with a first limiting channel 15 and a second limiting channel 16. The top of the first blade 121b is slidably connected to the first limiting channel 15. The top of the second blade 122b is slidably connected to the second limiting channel 16.

[0057] In this embodiment, the first limiting channel 15 and the second limiting channel 16 are in the shape of an arc, so that as the driving plate 141 moves or drives the part of the first blade 121b inserted into the first limiting channel 15 and the part of the second blade 122b inserted into the second limiting channel 16 to move closer or farther, thereby driving the first blade 121b and the second blade 122b to rotate.

[0058] like Figure 2 As shown, in one embodiment of the present application, the valve body 11 is further provided with a first limiting groove 17 and a second limiting groove 18. The bottom of the first blade 121b is slidably connected to the first limiting groove 17. The bottom of the second blade 122b is slidably connected to the second limiting groove 18.

[0059] In this embodiment, the first limiting groove 17 and the second limiting groove 18 are used to limit the bottom of the first blade 121b and the bottom of the second blade respectively, so as to further ensure the stability of the first blade 121b and the second blade 122b during rotation.

[0060] like Figure 5 As shown, in one embodiment of the present application, a first driving groove 141a is formed at one end of the driving plate 141. A second driving groove 141b is formed at the other end of the driving plate 141. The top of the first blade 121b is slidably connected to the first driving groove 141a. The top of the second blade 122b is slidably connected to the second driving groove 141b.

[0061] In this embodiment, the first driving groove 141a and the second driving groove 141b are respectively disposed at two ends of the driving plate 141, and are used to drive the rotation of the first blade 121b and the rotation of the second blade 122b.

[0062] like Figure 5 As shown, in one embodiment of the present application, a driving disk 19 is fixed on the threaded rod 142. The driving disk 19 is arranged close to the air inlet 111.

[0063] Specifically, the driving disc 19 is fixedly connected to the threaded rod 142 , and the driving disc 19 is used to manually drive the driving disc 19 to rotate and then drive the threaded rod 142 to rotate.

[0064] The technical features of the above-described embodiments may be arbitrarily combined, and the execution order of the method steps is not limited. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. An impact-resistant fire damper, characterized in that: The impact-resistant fire damper comprises: A valve body is arranged as a part of the ventilation channel, one end of the valve body is arranged as an air inlet, and the other end of the valve body is arranged as an air outlet; A sealing component is arranged in the valve body, and when the impact-resistant fire damper is in a non-working state, the sealing component is in a ventilating state, and when the impact-resistant fire damper is in a working state, the sealing component closes the valve body and the sealing component is turned into a sealing state; A plurality of support members are provided, wherein the support members are slidably provided on the sealing assembly, and the support members move synchronously when the sealing assembly switches from a ventilating state to a sealing state; The driving assembly is arranged in the valve body, and the top of the sealing assembly is inserted into the driving assembly. When in use, the driving assembly drives the sealing assembly to switch back and forth between the ventilation state and the sealing state.

2. The impact-resistant fire damper according to claim 1, characterized in that: The sealing assembly includes: A first rotating member, rotatably disposed in the valve body; The second rotating member is rotatably disposed in the valve body, and the first rotating member and the second rotating member are rotatably matched to close or open the valve body.

3. The impact-resistant fire damper according to claim 2, characterized in that: The first rotating member comprises: A first supporting shaft, rotatably disposed on the valve body; A first blade, fixedly sleeved on the first supporting shaft; The first reinforcing ribs are provided in plurality, wherein the first reinforcing ribs are provided close to the air outlet, the first reinforcing ribs are fixedly connected to the first blade, and the plurality of first reinforcing ribs are arranged at equal intervals along the axial direction of the first support shaft.

4. The impact-resistant fire damper according to claim 3, characterized in that: The second rotating member comprises: A second supporting shaft is rotatably disposed on the valve body; A second blade is fixedly sleeved on the second supporting shaft; A plurality of second reinforcing ribs are provided, wherein the second reinforcing ribs are provided close to the air outlet, the second reinforcing ribs are fixedly connected to the second blade, and the plurality of second reinforcing ribs are arranged at equal intervals along the axis direction of the second support shaft; The first blade cooperates with the second blade to close the valve body, and each of the first reinforcing ribs is arranged colinearly with at least one of the second reinforcing ribs.

5. The impact-resistant fire damper according to claim 4, characterized in that: The support member comprises: A first sliding member, wherein one end of the first sliding member is slidably disposed on one of the first reinforcing ribs, and the other end of the first sliding member is suspended; A second sliding member, wherein one end of the second sliding member is slidably disposed on one of the second reinforcing ribs, and the other end of the second sliding member is suspended; A first support plate is disposed between the first sliding member and the second sliding member, one end of the first support plate is rotatably connected to the suspended end of the first sliding member, and the other end of the first support plate is rotatably connected to the suspended end of the second sliding member; The first sliding member and the second sliding member are both disposed between the first supporting shaft and the second supporting shaft.

6. The impact-resistant fire damper according to claim 5, characterized in that: The drive assembly comprises: A driving plate is slidably disposed on the valve body, the top of the first blade is slidably connected to one end of the driving plate, and the top of the second blade is slidably connected to the other end of the driving plate; A threaded rod is rotatably arranged on the valve body, the threaded rod passes through the middle part of the driving plate, and the threaded rod is threadedly connected to the driving plate.

7. The impact-resistant fire damper according to claim 6, characterized in that: The valve body is provided with a first position limiting channel and a second position limiting channel. The top of the first blade is slidably connected to the first position limiting channel, and the top of the second blade is slidably connected to the second position limiting channel.

8. The impact-resistant fire damper according to claim 7, characterized in that: The valve body is further provided with a first limiting groove and a second limiting groove, the bottom of the first blade is slidably connected to the first limiting groove, and the bottom of the second blade is slidably connected to the second limiting groove.

9. The impact-resistant fire damper according to claim 8, characterized in that: A first driving groove is formed at one end of the driving plate, and a second driving groove is formed at the other end of the driving plate. The top of the first blade is slidably connected to the first driving groove, and the top of the second blade is slidably connected to the second driving groove.

10. The impact-resistant fire damper according to claim 9, characterized in that: A driving disk is fixed on the threaded rod, and the driving disk is arranged close to the air inlet.

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