Dustproof and moisture-proof wind pressure switch

Abstract

The utility model relates to the technical field of switches, in particular to a dust-proof and moisture-proof wind pressure switch, which is characterized in that a suction device communicated with a mounting cavity is arranged on one side of a shell of the wind pressure switch, so that a user can clean dust and moisture entering the mounting cavity by using the suction device; the suction device sucks dust and moisture in the installation cavity out of the air pressure switch shell through the suction pipe, so that the situation that dust and moisture are accumulated in the installation cavity is prevented, and the problem that in the daily use process of an existing air pressure switch, air flow in an air channel is often mixed with dust and moisture, and the service life of the air pressure switch is prolonged is effectively solved. And dust and moisture enter the wind pressure switch through a positive pressure detection port and a negative pressure detection port, so that the monitoring sensitivity and the working performance of the wind pressure switch are influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of switches, in particular to a dust-proof and moisture-proof wind pressure switch. Background Art

[0002] As a key automation control component, air pressure switches are widely used in gas water heaters, wall-mounted boilers, exhaust systems, and other applications. By detecting changes in air pressure within the duct, these switches monitor the ventilation system's operating status in real time. When the system reaches a preset air pressure threshold, the air pressure switch quickly responds, automatically activating or deactivating related equipment to ensure safe combustion, prevent the backflow of harmful gases, and effectively maintain stable system operation. Air pressure switches not only enhance equipment safety but also enable precise control of combustion efficiency, making them an indispensable safety feature in modern home and industrial equipment.

[0003] To accurately monitor changes in air pressure within the duct, existing air pressure switches typically feature positive and negative pressure detection ports. When the air pressure reaches or exceeds a preset operating threshold, the pressure pushes the diaphragm inside the switch to shift relative to the switch, causing the contacts on the diaphragm to engage or disengage from the microswitch, thereby controlling the operating status of appliances such as gas water heaters, wall-mounted boilers, and gas furnaces. However, during daily use, the airflow in the duct is often mixed with dust and moisture, which can enter the switch through the positive and negative pressure detection ports, affecting the switch's monitoring sensitivity and performance.

[0004] The present invention is proposed in view of the deficiencies in the prior art. Utility Model Content

[0005] In view of the problem mentioned above that in the daily use of the existing air pressure switch, the air flow in the air duct is often mixed with dust and moisture. The dust and moisture enter the interior of the air pressure switch through the positive pressure detection port and the negative pressure detection port, thereby affecting the monitoring sensitivity and working performance of the air pressure switch. The technical solution adopted by the present invention to solve the technical problem is:

[0006] A dust-proof and moisture-proof wind pressure switch includes a wind pressure switch housing, the wind pressure switch housing is provided with an installation cavity, a detection tube assembly connected to the installation cavity and used to detect airflow pressure, and a suction pipe located on one side of the wind pressure switch housing and connected to the installation cavity, the suction pipe is provided with a suction device at one end away from the wind pressure switch housing, and the suction device is connected to the installation cavity through the suction pipe.

[0007] Furthermore, the suction pipe is located on a side of the wind pressure switch housing away from the detection tube assembly.

[0008] Furthermore, the suction device includes a vacuum cleaner for sucking out smoke, dust and moisture, and the vacuum cleaner is connected to the installation cavity through the suction pipe.

[0009] Furthermore, the suction device includes a vacuum cleaner and a solenoid valve assembly located between the vacuum cleaner and the wind pressure switch housing, the suction pipe includes a first suction pipe and a second suction pipe, one end of the solenoid valve assembly is connected to the wind pressure switch housing through the first suction pipe, and the other end of the solenoid valve assembly is connected to the vacuum cleaner through the second suction pipe.

[0010] Furthermore, the suction device also includes a controller assembly connected to the solenoid valve assembly.

[0011] Furthermore, the wind pressure switch housing includes a first housing and a second housing connected to the first housing, the first suction pipe includes a first left suction pipe located in the first housing and a first right suction pipe located in the second housing, and the end of the solenoid valve assembly close to the wind pressure switch housing is respectively connected to the first left suction pipe and the first right suction pipe.

[0012] Furthermore, the solenoid valve assembly includes a first left solenoid valve connected to the first left suction pipe, and a first right solenoid valve connected to the first right suction pipe, the second suction pipe includes a second left suction pipe connected to the first left solenoid valve, and a second right suction pipe connected to the first right solenoid valve, and the vacuum cleaner is respectively connected to the second left suction pipe and the second right suction pipe.

[0013] Furthermore, the solenoid valve assembly includes a valve body, a first air inlet pipe located on the side of the valve body close to the wind pressure switch housing, a second air inlet pipe located on the side of the valve body close to the vacuum cleaner, and a valve core located on the valve body, and the valve core moves relative to the valve body to connect the first air inlet pipe and the second air inlet pipe.

[0014] Furthermore, a connecting mechanism is provided between the first shell and the second shell, and the first shell is detachably connected to the second shell through the connecting mechanism.

[0015] Furthermore, the connection mechanism includes a first threaded hole located on the first shell, and a second threaded hole located on the second shell and threadedly connected to the first threaded hole.

[0016] The beneficial effects of the utility model are as follows:

[0017] The utility model provides a suction device connected to the installation cavity on one side of the wind pressure switch housing, so that the user can use the suction device to clean the dust and moisture that enters the installation cavity. When the suction device is operating normally, the suction device sucks the dust and moisture in the installation cavity out of the wind pressure switch housing through the suction pipe, thereby preventing dust and moisture from accumulating in the installation cavity. This effectively solves the problem that in the daily use of the existing wind pressure switch, the air flow in the air duct is often mixed with dust and moisture, and the dust and moisture enter the interior of the wind pressure switch through the positive pressure detection port and the negative pressure detection port, thereby affecting the monitoring sensitivity and working performance of the wind pressure switch.

[0018] The present invention will be further described below with reference to the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the connection between the wind pressure switch housing and the suction device of the present invention;

[0020] Figure 2 This is one of the exploded schematic diagrams of the connection between the wind pressure switch housing and the suction device of the present invention;

[0021] Figure 3 This is the second exploded schematic diagram of the connection between the wind pressure switch housing and the suction device of the present invention;

[0022] Figure 4 This is a structural diagram of the solenoid valve assembly of the present utility model. DETAILED DESCRIPTION

[0023] The following describes the embodiments of the present invention in detail with reference to the accompanying drawings.

[0024] like Figures 1 to 4 The dust-proof and moisture-proof wind pressure switch shown in the figure includes a wind pressure switch housing 1, the wind pressure switch housing 1 having a mounting cavity 2, a detection tube assembly 3 communicating with the mounting cavity 2 and for detecting airflow pressure, and a suction pipe 4 located on one side of the wind pressure switch housing 1 and communicating with the mounting cavity 2. The suction pipe 4 has a suction device 5 at one end away from the wind pressure switch housing 1, and the suction device 5 communicates with the mounting cavity 2 through the suction pipe 4.

[0025] The utility model provides a suction device connected to the installation cavity on one side of the wind pressure switch housing, so that the user can use the suction device to clean the dust and moisture that enters the installation cavity. When the suction device is operating normally, the suction device sucks the dust and moisture in the installation cavity out of the wind pressure switch housing through the suction pipe, thereby preventing dust and moisture from accumulating in the installation cavity. This effectively solves the problem that in the daily use of the existing wind pressure switch, the air flow in the air duct is often mixed with dust and moisture, and the dust and moisture enter the interior of the wind pressure switch through the positive pressure detection port and the negative pressure detection port, thereby affecting the monitoring sensitivity and working performance of the wind pressure switch.

[0026] Furthermore, the detection tube assembly 3 includes a positive pressure detection tube 31 and a negative pressure detection tube 32 arranged corresponding to the positive pressure detection tube 31. The positive pressure detection tube 31 and the negative pressure detection tube 32 are both located on the wind pressure switch housing 1 and communicate with the installation cavity 2.

[0027] Specifically, when the suction device 5 is not in operation, a relatively closed space is formed between the suction device 5 , the suction tube 4 and the installation cavity 2 , thereby not affecting the accuracy of monitoring by the detection tube assembly 3 .

[0028] like Figures 1 to 4 The suction pipe 4 is shown as being located on a side of the wind pressure switch housing 1 away from the detection tube assembly 3;

[0029] Furthermore, the suction tube 4 is located on a side away from the detection tube assembly 3 so that the suction device 5 can more effectively clean every corner of the installation cavity 2, which is conducive to ensuring that the dust and moisture in the installation cavity 2 can be more comprehensively extracted, effectively reducing the possibility of dust and moisture remaining in the installation cavity 2.

[0030] like Figures 1 to 4 The suction device 5 shown includes a dust collector 51 for sucking out smoke, dust and moisture, and the dust collector 51 is connected to the installation cavity 2 through the suction pipe 4;

[0031] Optionally, in some embodiments, the suction device 5 includes a vacuum cleaner 51, which is connected to the installation cavity 2 through a suction pipe 4. When the user needs to clean the dust and moisture in the installation cavity 2, he only needs to turn on the vacuum cleaner 51. The vacuum cleaner 51 can draw the dust and moisture in the installation cavity 2 out of the wind pressure switch housing 1 through the suction pipe 4, thereby avoiding the accumulation of dust and moisture in the installation cavity 2.

[0032] Furthermore, the vacuum cleaner 51 can act directly on the area that needs to be cleaned, which helps to quickly absorb dust and moisture, thereby improving cleaning efficiency and effectively shortening cleaning time, thereby maintaining the good working condition of the wind pressure switch.

[0033] Furthermore, the vacuum cleaner 51 can not only remove dust, but also effectively absorb moisture, which helps to control the humidity in the installation cavity 2, prevent moisture from damaging electronic components, and is beneficial to improving the service life of the equipment.

[0034] Furthermore, the vacuum cleaner 51 has a strong suction force and can efficiently suck out dust and moisture in the installation cavity 2, which is beneficial to reducing the impact of dust and moisture on the performance of the wind pressure switch.

[0035] like Figures 1 to 4 The suction device 5 shown includes a dust collector 51 and a solenoid valve assembly 52 located between the dust collector 51 and the air pressure switch housing 1. The suction pipe 4 includes a first suction pipe 41 and a second suction pipe 42. One end of the solenoid valve assembly 52 is connected to the air pressure switch housing 1 through the first suction pipe 41, and the other end of the solenoid valve assembly 52 is connected to the dust collector 51 through the second suction pipe 42.

[0036] Optionally, in some embodiments, the suction device 5 includes a dust collector 51 and a solenoid valve assembly 52, one end of the solenoid valve assembly 52 is connected to the installation cavity 2 through the first suction pipe 41, and the other end of the solenoid valve assembly 52 is connected to the dust collector 51 through the second suction pipe 42. In normal state, the solenoid valve assembly 52 can block the connection between the dust collector 51 and the installation cavity 2, so that the dust collector 51 and the installation cavity 2 are not connected, thereby avoiding inaccurate monitoring by the detection tube assembly 3. When the user needs to clean the dust and moisture in the installation cavity 2, the solenoid valve assembly 52 is manually opened to connect the dust collector 51 and the installation cavity 2. At the same time, the dust collector 51 is opened, and the dust collector 51 can draw the dust and moisture in the installation cavity 2 out of the wind pressure switch housing 1, thereby avoiding the accumulation of dust and moisture in the installation cavity 2. When the cleaning is completed, the solenoid valve assembly 52 is closed to disconnect the dust collector 51 and the installation cavity 2, thereby ensuring the normal operation of the wind pressure switch.

[0037] Furthermore, the arrangement of the solenoid valve assembly 52 makes the suction process more flexible. By controlling the opening and closing of the solenoid valve assembly 52 , the start and stop of suction, as well as the intensity of suction, can be precisely controlled.

[0038] like Figures 1 to 4 The suction device 5 shown further includes a controller assembly connected to the solenoid valve assembly 52;

[0039] Optionally, in some embodiments, the suction device 5 includes a vacuum cleaner 51, a solenoid valve assembly 52, and a controller assembly (not shown in the figure) connected to the solenoid valve assembly 52. ​​The setting of the controller assembly (not shown in the figure) can periodically open or close the solenoid valve assembly 52 according to the actual needs of the user, thereby connecting or blocking the suction channel. The user does not need to manually open or close the solenoid valve assembly 52, which is conducive to improving the flexibility and practicality of the suction process.

[0040] Furthermore, the setting of the controller component can realize automatic control of the suction process. The controller component can automatically start and stop the suction process according to the parameters or conditions preset by the user, which is conducive to reducing reliance on manual operation, helping to improve work efficiency, and ensuring the accuracy and consistency of the suction process.

[0041] like Figures 1 to 4 The wind pressure switch housing 1 shown includes a first housing 11 and a second housing 12 connected to the first housing 11. The first suction pipe 41 includes a first left suction pipe 411 located in the first housing 11 and a first right suction pipe 412 located in the second housing 12. The end of the solenoid valve assembly 52 near the wind pressure switch housing 1 is connected to the first left suction pipe 411 and the first right suction pipe 412 respectively.

[0042] Optionally, in some embodiments, the first shell 11 and the second shell 12 are integrally formed.

[0043] Optionally, in some embodiments, the first shell 11 and the second shell 12 are detachably connected.

[0044] Furthermore, the positive pressure detection tube 31 is located on the first shell 11 , and the negative pressure detection tube 32 is located on the second shell 12 .

[0045] Optionally, in some embodiments, the first left suction pipe 411 and the first right suction pipe 412 share a common pipe connected to the solenoid valve assembly 52 .

[0046] Preferably, the first left suction pipe 411 and the first right suction pipe 412 are arranged separately, and the two independent pipes are connected to the solenoid valve assembly 52, which is conducive to avoiding airflow turbulence; at the same time, the first left suction pipe 411 corresponds to the positive pressure detection pipe 31 on the first shell 11, and the first right suction pipe 412 corresponds to the negative pressure detection pipe 32 on the second shell 12, so that the suction device 5 can evenly suck dust and moisture in the installation cavity 2 to prevent local accumulation.

[0047] Furthermore, the provision of the first left suction pipe 411 and the first right suction pipe 412 is conducive to optimizing the airflow path and helps to form a reasonable airflow direction during suction, thereby achieving a better cleaning effect.

[0048] like Figures 1 to 4 The solenoid valve assembly 52 shown includes a first left solenoid valve 521 connected to the first left suction pipe 411, and a first right solenoid valve 522 connected to the first right suction pipe 412. The second suction pipe 42 includes a second left suction pipe 421 connected to the first left solenoid valve 521, and a second right suction pipe 422 connected to the first right solenoid valve 522. The vacuum cleaner 51 is connected to the second left suction pipe 421 and the second right suction pipe 422, respectively.

[0049] Optionally, in some embodiments, the number of the solenoid valve assembly 52 is one, and the first left suction pipe 411 and the first right suction pipe 412 are connected to the solenoid valve assembly 52 at the same time.

[0050] Preferably, the solenoid valve assembly 52 includes a first left solenoid valve 521 and a first right solenoid valve 522, one end of the first left solenoid valve 521 is connected to the installation cavity 2 through the first left suction pipe 411, and the other end of the first left solenoid valve 521 is connected to the vacuum cleaner 51 through the second left suction pipe 421; similarly, one end of the first right solenoid valve 522 is connected to the installation cavity 2 through the first right solenoid valve 522, and the other end of the first right solenoid valve 522 is connected to the vacuum cleaner 51 through the second right suction pipe 422.

[0051] Furthermore, the provision of suction channels on both sides can disperse the suction load, which is beneficial to preventing blockage or damage caused by excessive use of a single suction channel, and effectively improves the safety and reliability of the system.

[0052] like Figures 1 to 4 The solenoid valve assembly 52 shown includes a valve body 61, a first air inlet pipe 62 located on the side of the valve body 61 close to the air pressure switch housing 1, a second air inlet pipe 63 located on the side of the valve body 61 close to the vacuum cleaner 51, and a valve core 64 located on the valve body 61. The valve core 64 moves relative to the valve body 61 to connect the first air inlet pipe 62 and the second air inlet pipe 63.

[0053] Specifically, under normal circumstances, the valve core 64 disconnects the first air inlet pipe 62 and the second air inlet pipe 63, so that the vacuum cleaner 51 and the installation chamber 2 are not connected. When it is necessary to suck out dust and moisture in the installation chamber 2, the valve core 64 moves relative to the valve body 61, thereby connecting the first air inlet pipe 62 and the second air inlet pipe 63, so that the vacuum cleaner 51 and the installation chamber 2 are communicated, and the vacuum cleaner 51 can suck out dust and moisture in the installation chamber 2.

[0054] Furthermore, the valve core 64 can move relative to the valve body 61, and can accurately control the connection and disconnection of the first air inlet pipe 62 and the second air inlet pipe 63, which is conducive to achieving accurate control of the airflow and ensuring that the vacuuming operation is started only when cleaning is required.

[0055] Furthermore, the close fit between the valve core 64 and the valve body 61 can effectively prevent gas leakage, which helps to ensure that gas does not leak from the solenoid valve assembly 52 in the closed state, thereby effectively maintaining the sealing of the system.

[0056] like Figures 1 to 4 A connecting mechanism 7 is provided between the first shell 11 and the second shell 12, and the first shell 11 is detachably connected to the second shell 12 via the connecting mechanism 7;

[0057] Optionally, in some embodiments, the first shell 11 and the second shell 12 are snap-connected.

[0058] Optionally, in some embodiments, the first shell 11 and the second shell 12 are connected by a slot.

[0059] Optionally, in some embodiments, the first shell 11 and the second shell 12 are locked together.

[0060] Preferably, the first housing 11 and the second housing 12 are threadedly connected.

[0061] Furthermore, the detachable connection is provided so that the user can easily disassemble the first shell 11 and the second shell 12, which is beneficial for the user to quickly access and check the internal components of the wind pressure switch shell 1, thereby reducing the difficulty of maintenance and effectively improving work efficiency.

[0062] like Figures 1 to 4 The connecting mechanism 7 shown includes a first threaded hole 71 located on the first housing 11 and a second threaded hole 72 located on the second housing 12 and threadedly connected to the first threaded hole 71 ;

[0063] Furthermore, the threaded connection can provide a strong mechanical fastening effect, which is conducive to ensuring a tight connection between the first shell 11 and the second shell 12, and effectively preventing failure or safety hazards caused by loosening during use.

[0064] Furthermore, the threaded connection makes the installation and disassembly process between the first shell 11 and the second shell 12 relatively simple. The user only needs to use appropriate tools to rotate the threads, which helps save time and labor costs.

[0065] The implementation method of Example 1 is as follows:

[0066] A dust-proof and moisture-proof wind pressure switch, comprising a wind pressure switch housing 1, the wind pressure switch housing 1 being provided with a mounting cavity 2, a detection tube assembly 3 communicating with the mounting cavity 2 and for detecting airflow pressure, and a suction pipe 4 located on one side of the wind pressure switch housing 1 and communicating with the mounting cavity 2, the suction pipe 4 being provided with a suction device 5 at one end away from the wind pressure switch housing 1, the suction device 5 comprising a dust collector 51 for extracting dust and moisture, an electromagnetic valve assembly 52 located between the dust collector 51 and the wind pressure switch housing 1, and a control valve connected to the electromagnetic valve assembly 52. The solenoid valve assembly 52 includes a first left solenoid valve 521 and a first right solenoid valve 522. The suction pipe 4 includes a first suction pipe 41 and a second suction pipe 42. The first suction pipe 41 includes a first left suction pipe 411 and a first right suction pipe 412. The second suction pipe 42 includes a second left suction pipe 421 and a second right suction pipe 422. One end of the first left solenoid valve 521 is connected to the installation cavity 2 through the first left suction pipe 411, and the other end of the first left solenoid valve 521 is connected to the installation cavity 2 through the second left suction pipe 42. 1 is connected to the vacuum cleaner 51, and the first left solenoid valve 521 is also connected to the controller assembly; similarly, one end of the first right solenoid valve 522 is connected to the installation chamber 2 through the first right suction pipe 412, and the other end of the first right solenoid valve 522 is connected to the vacuum cleaner 51 through the second right suction pipe 422. The first right solenoid valve 522 is also connected to the controller assembly. The controller assembly can automatically start and stop the suction process according to the parameters or conditions preset by the user, which is conducive to reducing the dependence on manual operation. Under normal circumstances, the solenoid valve assembly 52 blocks the vacuum cleaner 51 from the installation chamber 2. When the controller assembly meets the preset conditions, the solenoid valve assembly 52 connects the vacuum cleaner 51 with the installation chamber 2, so that the vacuum cleaner 51 can suck the dust and moisture in the installation chamber 2. The suction process is fully automatically controlled without manual intervention, which effectively solves the problem that during daily use of the existing air pressure switch, the air flow in the air duct is often mixed with dust and moisture, and the dust and moisture enter the air pressure switch through the positive pressure detection port and the negative pressure detection port, thereby affecting the monitoring sensitivity and working performance of the air pressure switch.

[0067] The implementation method of Example 2 is as follows:

[0068] The difference between Example 2 and Example 1 is that: the number of the solenoid valve assembly 52 is one, and the first left suction pipe 411 and the first right suction pipe 412 share a common pipe connected to the solenoid valve assembly 52 .

[0069] The implementation method of Example 3 is as follows:

[0070] The difference between Example 3 and Example 1 is that the suction device 5 includes a dust collector 51 for sucking out smoke, dust and moisture, and a solenoid valve assembly 52 located between the dust collector 51 and the wind pressure switch housing 1. The solenoid valve assembly 52 includes a first left solenoid valve 521 and a first right solenoid valve 522. The suction pipe 4 includes a first suction pipe 41 and a second suction pipe 42. The first suction pipe 41 includes a first left suction pipe 411 and a first right suction pipe 412. The second suction pipe 42 includes a second left suction pipe 421 and a second right suction pipe 422. One end of the first left solenoid valve 521 is connected to the installation cavity 2 through the first left suction pipe 411, and the other end of the first left solenoid valve 521 is connected to the dust collector 51 through the second left suction pipe 421. Similarly, the first right One end of the side solenoid valve 522 is connected to the installation chamber 2 through the first right suction pipe 412, and the other end of the first right solenoid valve 522 is connected to the vacuum cleaner 51 through the second right suction pipe 422. When the user needs to suck the dust and moisture in the installation chamber 2, manually open the first left solenoid valve 521 and the first right solenoid valve 522 to make the vacuum cleaner 51 and the installation chamber 2 communicate. At the same time, turn on the vacuum cleaner 51, and the vacuum cleaner 51 can draw the dust and moisture in the installation chamber 2 out of the wind pressure switch housing 1, thereby avoiding the accumulation of dust and moisture in the installation chamber 2. When the cleaning is completed, manually close the first left solenoid valve 521 and the first right solenoid valve 522 to prevent the vacuum cleaner 51 and the installation chamber 2 from communicating, thereby ensuring the normal operation of the wind pressure switch.

[0071] The implementation method of Example 4 is as follows:

[0072] The difference between Example 4 and Example 1 is that the suction device 5 includes a vacuum cleaner 51 for sucking out dust and moisture. The vacuum cleaner 51 is directly connected to the installation cavity 2 through the suction pipe 4. When the user needs to clean the dust and moisture in the installation cavity 2, he only needs to manually open the vacuum cleaner 51. The vacuum cleaner 51 directly sucks the dust and moisture in the installation cavity 2 out of the wind pressure switch housing 1 through the suction pipe 4, thereby avoiding the accumulation of dust and moisture in the installation cavity 2; in addition, the vacuum cleaner 51 can directly act on the area that needs to be cleaned, which helps to quickly suck away dust and moisture, which is beneficial to improve the cleaning efficiency and effectively shorten the cleaning time, thereby maintaining the good working condition of the wind pressure switch.

[0073] The above examples are merely used to further illustrate the technical content of the present invention for easier understanding by the reader. However, they do not limit the implementation of the present invention to these examples. Any technical extension or reinvention based on the present invention is protected by the present invention. The scope of protection of the present invention shall be determined by the claims.

Claims

1. A dustproof and moisture-proof wind pressure switch, comprising a wind pressure switch housing (1), characterized in that: The wind pressure switch housing (1) is provided with a mounting cavity (2), a detection tube assembly (3) communicating with the mounting cavity (2) and used for detecting airflow pressure, and a suction pipe (4) located on one side of the wind pressure switch housing (1) and communicating with the mounting cavity (2). The suction pipe (4) is provided with a suction device (5) at one end away from the wind pressure switch housing (1), and the suction device (5) is communicated with the mounting cavity (2) through the suction pipe (4).

2. The dust-proof and moisture-proof wind pressure switch according to claim 1, characterized in that: The suction pipe (4) is located on a side of the wind pressure switch housing (1) away from the detection tube assembly (3).

3. The dust-proof and moisture-proof wind pressure switch according to claim 1, characterized in that: The suction device (5) comprises a dust collector (51) for sucking out smoke, dust and moisture, and the dust collector (51) is connected to the installation cavity (2) through the suction pipe (4).

4. The dust-proof and moisture-proof wind pressure switch according to claim 1, characterized in that: The suction device (5) comprises a dust collector (51) and a solenoid valve assembly (52) located between the dust collector (51) and the wind pressure switch housing (1); the suction pipe (4) comprises a first suction pipe (41) and a second suction pipe (42); one end of the solenoid valve assembly (52) is connected to the wind pressure switch housing (1) through the first suction pipe (41); and the other end of the solenoid valve assembly (52) is connected to the dust collector (51) through the second suction pipe (42).

5. The dust-proof and moisture-proof wind pressure switch according to claim 4, characterized in that: The suction device (5) further comprises a controller component connected to the solenoid valve component (52).

6. The dust-proof and moisture-proof wind pressure switch according to claim 4, characterized in that: The wind pressure switch housing (1) comprises a first housing (11) and a second housing (12) connected to the first housing (11); the first suction pipe (41) comprises a first left suction pipe (411) located in the first housing (11) and a first right suction pipe (412) located in the second housing (12); and one end of the solenoid valve assembly (52) close to the wind pressure switch housing (1) is connected to the first left suction pipe (411) and the first right suction pipe (412), respectively.

7. The dust-proof and moisture-proof wind pressure switch according to claim 6, characterized in that: The solenoid valve assembly (52) includes a first left solenoid valve (521) connected to the first left suction pipe (411), and a first right solenoid valve (522) connected to the first right suction pipe (412); the second suction pipe (42) includes a second left suction pipe (421) connected to the first left solenoid valve (521), and a second right suction pipe (422) connected to the first right solenoid valve (522); the vacuum cleaner (51) is connected to the second left suction pipe (421) and the second right suction pipe (422), respectively.

8. The dust-proof and moisture-proof wind pressure switch according to claim 4, characterized in that: The solenoid valve assembly (52) comprises a valve body (61), a first air inlet pipe (62) located on a side of the valve body (61) close to the wind pressure switch housing (1), a second air inlet pipe (63) located on a side of the valve body (61) close to the vacuum cleaner (51), and a valve core (64) located on the valve body (61), wherein the valve core (64) moves relative to the valve body (61) to connect the first air inlet pipe (62) and the second air inlet pipe (63).

9. The dust-proof and moisture-proof wind pressure switch according to claim 6, characterized in that: A connecting mechanism (7) is provided between the first shell (11) and the second shell (12), and the first shell (11) is detachably connected to the second shell (12) via the connecting mechanism (7).

10. The dust-proof and moisture-proof wind pressure switch according to claim 9, characterized in that: The connecting mechanism (7) comprises a first threaded hole (71) located on the first shell (11), and a second threaded hole (72) located on the second shell (12) and threadedly connected to the first threaded hole (71).

Images