Pressure tapping device and gas water heating equipment

Abstract

The utility model discloses a pressure tapping device and gas water heating equipment, the pressure tapping device comprises a valve body, the valve body is internally provided with a mounting hole, a first channel, a second channel and a third channel, the first channel, the second channel and the third channel are respectively communicated with the mounting hole, and the first channel is suitable for being communicated with an air box of the gas water heating equipment; the second channel is suitable for being communicated with a positive pressure tapping pipe of the wind pressure sensor, and the third channel is suitable for being communicated with the outside of the air box; the valve element is arranged in the mounting hole, at least part of an adjusting part of the valve element is located outside the air box, and the valve element is provided with a first working position and a second working position; at the first working position, the valve element seals the third channel, and the second channel is communicated with the first channel; and at the second working position, the first channel is sealed by the valve core, and the second channel is communicated with the third channel. The pressure measuring point is convenient and fast to adjust and convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of hot water equipment, in particular to a pressure taking device and a gas hot water equipment. Background Art

[0002] At present, when gas water heating equipment such as wall-mounted boilers and gas water heaters are powered on, the fan will start to purge first to detect the operating status of the fan. The method for detecting the operating status of the fan of the gas heating water heater is currently to set a wind pressure switch or wind pressure sensor in the air box of the gas water heating equipment, and determine whether the fan is started and operated normally by detecting the difference between the pressure value of the negative pressure point on the fan and the pressure value in the air box. When the pressure difference signal collected by the wind pressure sensor reaches the designed starting threshold requirement, the gas water heating equipment furnace works according to the designed process.

[0003] However, when the gas water heater is installed in high altitude and cold areas, due to geographical and climatic factors, the atmospheric pressure is low, or other factors cause the wind pressure difference detected by the wind pressure sensor to fail to reach the set start threshold when the gas water heater is used. The gas water heater will display a wind pressure fault code and the fan cannot start. To solve this problem, it is necessary to debug and change the relevant operating parameters of the gas water heater, but it is difficult to debug and change the operating parameters. Therefore, the problem that the fan cannot start due to the pressure difference is usually solved by changing the pressure point. Specifically, the face shell, air box cover and other parts are removed to lead the pressure point from the inside of the air box to the outside to increase the pressure difference of the detection point, and then debug. The reason for removing the face shell and air box cover is that there are no reserved holes and devices on the equipment to lead the pressure point from the inside of the air box to the outside. This makes the whole process complicated and cumbersome, time-consuming and labor-intensive, and affects the product installation and use experience, which easily makes customers mistakenly believe that the product is defective.

[0004] In view of the above-mentioned shortcomings, it is necessary to design a pressure taking device and a gas water heater. Utility Model Content

[0005] Therefore, the technical problem to be solved by the utility model is to remove the surface shell, air box cover and other components to lead the pressure taking point from the inside of the air box to the outside to increase the pressure difference of the detection point. This solution is complicated, cumbersome, time-consuming and labor-intensive, and affects the product installation and use experience, and can easily make customers mistakenly believe that the product is defective, thereby providing a pressure taking device and a gas water heating device.

[0006] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0007] A pressure taking device, used for gas water heater, comprising:

[0008] A valve body, wherein the valve body is provided with a mounting hole, and a first channel, a second channel and a third channel respectively connected to the mounting hole; the first channel is suitable for connecting to an air box of a gas water heater, the second channel is suitable for connecting to a positive pressure taking pipe of the gas water heater, and the third channel is suitable for connecting to the outside of the air box;

[0009] The valve core is installed in the installation hole, and the regulating part of the valve core is at least partially located outside the air box; wherein,

[0010] The valve core is installed in the installation hole, wherein:

[0011] The valve core has a first working position and a second working position; in the first working position, the valve core seals the third channel, and the second channel is communicated with the first channel; in the second working position, the valve core seals the first channel, and the second channel is communicated with the third channel.

[0012] In the utility model, the first channel, the second channel and the third channel arranged on the valve body form a three-way channel, and the valve core has a first working position and a second working position. In the first working position, the valve core seals the third channel, and the second channel is connected to the first channel. At this time, the positive pressure joint of the wind pressure sensor detects the pressure value inside the air box through the positive pressure taking pipe and the pressure taking device; the negative pressure joint of the wind pressure sensor detects the negative pressure value of the fan through the negative pressure taking pipe. The wind pressure sensor converts the real-time monitored pressure difference into an electrical signal and transmits it to the control system. When the pressure difference reaches the starting threshold value set by the control system, the gas water heating equipment works normally according to its set program; in the second working position, the valve core seals the first channel, and the second channel is connected to the third channel. At this time, the positive pressure joint of the wind pressure sensor detects the negative pressure value of the fan through the negative pressure taking pipe. The positive pressure taking pipe and the pressure taking device are connected to the atmosphere in the environment, and what is detected is the pressure value in the environment; the negative pressure connector of the wind pressure sensor detects the negative pressure value of the fan through the negative pressure taking pipe. Since the pressure value in the environment is greater than the pressure value in the air box, the pressure difference detected by the wind pressure sensor increases. According to the parameters displayed on the display panel, the parameters of the gas water heating equipment are set and adjusted so that it can meet normal working requirements. Moreover, since the adjustment part of the valve core is at least partially located outside the air box, there is no need to remove the face shell, the air box cover and other components to lead the pressure taking point from the inside of the air box to the outside during the process of adjusting the pressure taking point. Therefore, the pressure taking device provided by the utility model can make the adjustment process of the pressure taking point simple and quick, and easy to install, and will not make customers mistakenly believe that the product is defective.

[0013] Further, the valve core is a three-way valve core having a first passage, a second passage and a third passage; in the first working position, the second passage is communicated with the second channel, and the first passage is communicated with the first channel;

[0014] In the second working position, the second passage is communicated with the third passage, and the third passage is communicated with the second passage.

[0015] Furthermore, the three-way valve core is a mechanical valve core, which can rotate around its own axis so that the valve core can switch between the first working position and the second working position. The mounting hole is a circular hole, the valve core is cylindrical, and the first passage, the second passage and the third passage pass through the outer wall of the valve core.

[0016] Furthermore, a limiting structure is provided on the pressure taking device, and the limiting structure is used to limit the rotation angle of the valve core so that the valve core has a first rotation limit position and a second rotation limit position, the first rotation limit position corresponds to the first working position, and the second rotation limit position corresponds to the second working position.

[0017] Furthermore, the adjusting portion is a lock core arranged on the top surface of the valve core.

[0018] Furthermore, it also includes a cover plate, which covers the valve body, and a clearance hole is opened on the cover plate, and the lock core enters the clearance hole.

[0019] Furthermore, the three-way valve core is a solenoid valve core.

[0020] Furthermore, the limiting structure includes a limiting groove and a limiting block that are slidably matched.

[0021] Furthermore, it also includes a first pressure-taking joint and a second pressure-taking joint, and the valve body is also provided with a first blind hole and a second blind hole, the first pressure-taking joint and the second pressure-taking joint are respectively installed in the first blind hole and the second blind hole, the first through hole in the first pressure-taking joint is connected to the first channel, and the second through hole in the second pressure-taking joint is connected to the second channel.

[0022] A gas water heater, equipped with the aforementioned pressure taking device, comprises:

[0023] Air box;

[0024] A wind pressure sensor is disposed in the air box;

[0025] A fan is arranged in the air box;

[0026] A negative pressure pipe, one end of which is connected to the wind pressure sensor, and the other end of which is connected to the negative pressure connector of the fan;

[0027] A positive pressure pipe, one end of which is connected to the wind pressure sensor; wherein,

[0028] The first channel of the pressure taking device is connected to the air box of the gas water heater, the second channel is connected to the other end of the positive pressure taking pipe of the gas water heater, the third channel is connected to the outside of the air box, and the regulating part on the valve core of the pressure taking device is at least partially located outside the air box.

[0029] In the utility model, since the gas water heater is equipped with the aforementioned pressure taking device, the pressure taking point can be adjusted conveniently and quickly, so that the gas water heater can be used normally and customers will not mistakenly believe that the product is defective. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a three-dimensional exploded schematic diagram of the pressure taking device in the utility model;

[0032] Figure 2 It is a three-dimensional combined schematic diagram of the pressure taking device in the utility model;

[0033] Figure 3 It is a top view of the pressure taking device in the utility model;

[0034] Figure 4 It is a side view of the valve core in the utility model;

[0035] Figure 5 for Figure 4 Sectional view along line A-A;

[0036] Figure 6 It is a front view of the pressure taking device in the utility model;

[0037] Figure 7 When the valve core is in the first working position, the valve core Figure 6 Partial cross-sectional view of the B-B line;

[0038] Figure 8 When the valve core is in the second working position, the valve core Figure 6 Partial cross-sectional view of the B-B line;

[0039] Fig. 9 It is a schematic diagram of a gas heating water heater equipped with a pressure taking device according to the utility model;

[0040] Fig.10 for Fig. 9A partial enlarged view of the dotted line portion.

[0041] Description of reference numerals:

[0042] 1. Top plate of gas heating hot water boiler; 2. Pressure taking device;

[0043] 21. valve body; 210. mounting hole; 211. first channel; 212. second channel; 213. third channel; 216. hot melt column; 217. first pressure-taking joint; 2170. first through hole; 218. second pressure-taking joint; 2180. second through hole; 219. sealing plug;

[0044] 22, valve core; 221, first passage; 222, second passage; 223, third passage; 224, limit block; 225, lock core;

[0045] 23, cover plate; 231, clearance hole; 232, plug hole; 233, limit groove;

[0046] 3. Positive pressure taking tube; 4. Negative pressure taking tube; 5. Wind pressure sensor; 6. Fan; 7. Display panel; 8. Air box. DETAILED DESCRIPTION

[0047] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0048] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0049] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0051] Example 1

[0052] like Figures 1 to 10 As shown, this embodiment provides a pressure taking device for taking pressure of a gas water heater. In this embodiment, the gas water heater is a gas heating water heater. The pressure taking device will be described below using the gas heating water heater as an example.

[0053] The pressure taking device 2 comprises a valve body 21, a valve core 22, a cover plate 23, a first pressure taking connector 217 and a second pressure taking connector 218. The first pressure taking connector 217 is a negative pressure taking connector of the pressure taking device 2, and the second pressure taking connector 218 is a positive pressure taking connector of the pressure taking device 2.

[0054] The cover plate 23 covers the valve body 21. The cover plate 23 is provided with a clearance through hole 231. The cover plate 23 is also provided with a plug hole 232.

[0055] The valve body 21 defines a circular mounting hole 210 , and a first channel 211 , a second channel 212 , and a third channel 213 respectively connected to the mounting hole 210 .

[0056] like Figures 7 to 10 As shown, in this embodiment, the valve body 21 is entirely located outside the air box 8 of the gas water heater, the first channel 211 is connected to the air box 8 of the gas water heater, the second channel 212 is connected to the positive pressure taking pipe 3 of the gas water heater, and the outer end of the third channel 213 is exposed outside the air box 8. Of course, the third channel 213 can also be located inside the air box 8, but is connected to the outside of the air box 8 through a pipeline. The machining holes (not marked) left by forming the first channel 211 and the second channel 212 at both ends of the valve body 21 are blocked by the sealing plug 219 before leaving the factory. It can be understood that the sealing plug 219 is integrated with the valve body 21, and the user does not need to block the machining holes before use.

[0057] The bottom surface of the valve body 21 is inwardly recessed to form a first blind hole (not shown) and a second blind hole (not shown). The first blind hole and the second blind hole are respectively located on both sides of the mounting hole 210, and are respectively connected to the first channel 211 and the second channel 212. The first pressure-taking joint 217 is inserted into the first blind hole, and the first pressure-taking joint 217 is provided with a first through hole 2170 connected to the first channel 211. The second pressure-taking joint 218 is inserted into the second blind hole, and the second pressure-taking joint 218 is provided with a second through hole 2180 connected to the second channel 212. The first channel 211 is connected to the air box 8 through the first pressure-taking joint 217. The second channel 212 is connected to the positive pressure-taking pipe 3 of the wind pressure sensor 5 through the second pressure-taking joint 218. One end of the negative pressure-taking pipe 4 is connected to the wind pressure sensor 5, and the other end is connected to the negative pressure joint of the fan 6.

[0058] Two hot melt posts 216 are symmetrically arranged on the top surface of the valve body 21, and the hot melt posts 216 enter into the plug holes 232 on the cover plate 23. The hot melt posts 216 are heated and melted to fix the cover plate 23 and the valve body 21 together.

[0059] In this embodiment, the valve core 22 is installed in the mounting hole 210, and the lock core 225 as the adjustment part of the valve core 22 must be located outside the air box 8 in order to operate the adjustment part. Specifically, the lock core 225 is a lock core 225 in the shape of a triangle, a quadrilateral or a pentagon. The lock core 225 passes through the aforementioned clearance through hole 231. The valve core 22 has a first working position and a second working position. The valve core 22 is a three-way mechanical valve core. The valve core 22 is cylindrical and is installed in the mounting hole 210. The valve core 22 includes a first passage 221, a second passage 222 and a third passage 223. Of course, the valve core 22 can also be an electromagnetic valve core.

[0060] like Figure 7 As shown, in the first working position, the second passage 222 is communicated with the second channel 212 , the first passage 221 is communicated with the first channel 211 , and the third channel 213 is sealed by the outer wall of the valve core 22 .

[0061] like Figure 8 As shown, in the second working position, the second passage 222 is communicated with the third passage 213 , the third passage 223 is communicated with the second passage 212 , and the first passage 211 is sealed by the outer wall of the valve core 22 .

[0062] When the valve core 22 needs to be switched from the first working position to the second working position, or from the second working position to the first working position, it can be achieved by simply plugging and matching the special key with the lock core 225 and rotating the lock core 225, thereby driving the valve core 22 to rotate around its own axis. The setting of the lock core 225 can ensure that a dedicated person operates the valve core 22, avoiding misoperation of the pressure taking device 2.

[0063] The pressure taking device 2 is provided with a limit structure, which is used to limit the rotation angle of the valve core 22, so that the valve core 22 has a first rotation limit position and a second rotation limit position. The first rotation limit position corresponds to the first working position. The second rotation limit position corresponds to the second working position. By setting the first rotation limit position and the second rotation limit position, it is convenient to judge whether the valve core 22 reaches the first working position and the second working position, thereby improving the convenience and reliability of adjusting the working position of the valve core 22, thereby ensuring the reliability of the pressure taking point adjustment.

[0064] In this embodiment, the limiting groove 233 is disposed on the cover plate 23 , and the limiting block 224 is disposed on the valve core 22 .

[0065] In other embodiments, the limit groove 233 may also be arranged on the valve core 22, and correspondingly, the limit block 224 is arranged on the cover plate 23, or, the limit groove 233 is arranged on the valve body 21, and correspondingly, the limit block 224 is arranged on the valve core 22, or, the limit groove 233 is arranged on the valve core 22, and the limit block 224 is arranged on the main body.

[0066] The following takes a gas heating water heater as an example to introduce the installation process of the pressure taking device 2:

[0067] The pressure taking device 2 is fixed on the top plate 1 of the gas heating water heater by screws, and the first pressure taking joint 217 and the second pressure taking joint 218 respectively pass through the assembly holes on the top plate 1 of the gas heating water heater and enter the air box 8 of the gas heating water heater. Sealing pads are respectively provided between the first pressure taking joint 217 and the top plate 1 of the gas heating water heater, and between the second pressure taking joint 218 and the top plate 1 of the gas heating water heater for sealing. The second pressure taking joint 218 of the pressure taking device 2 is connected to the positive pressure joint of the wind pressure sensor 5 through the positive pressure taking pipe 3, and the negative pressure joint of the wind pressure sensor 5 is connected to the negative pressure joint of the fan 6 through the negative pressure taking pipe 4.

[0068] The following uses a gas heating water heater as an example to introduce the use of the pressure taking device 2:

[0069] When the valve core 22 is in the above-mentioned first working position, the first through hole 2170, the first channel 211, the first passage 221, the second passage 222, the second channel 212, and the second through hole 2180 are connected in sequence, and the third channel 213 is sealed by the outer wall of the valve core 22. The air outside the air box 8 cannot reach the second through hole 2180 via the third channel 213. At this time, the positive pressure connector of the wind pressure sensor 5 detects the pressure value inside the air box 8 through the positive pressure taking pipe 3 and the pressure taking device 2; the negative pressure connector of the wind pressure sensor 5 detects the negative pressure value of the fan 6 through the negative pressure taking pipe 4. The wind pressure sensor 5 converts the real-time monitored pressure difference into an electrical signal and transmits it to the control system. When the pressure difference reaches the start threshold requirement set by the control system, the gas heating water boiler works normally according to its set program;

[0070] When the gas heating water heater is used in high altitude and cold regions, it will be affected by local environmental factors, resulting in the pressure difference detected by the wind pressure sensor 5 being less than the start threshold set by the control system, and the gas heating water heater cannot work normally. The display panel 7 will display the wind pressure fault code. At this time, the lock core 225 of the pressure taking device 2 is rotated clockwise with a special key to switch the valve core 22 from the first working position to the second working position. In the second working position, the third channel 213, the second passage 222, the third passage 223, the second channel 212, and the second through hole 2180 are sequentially The first channel 211 is connected and sealed by the outer wall of the valve core 22. The positive pressure connector of the wind pressure sensor 5 is connected to the atmosphere in the environment through the positive pressure taking pipe 3 and the pressure taking device 2, and the pressure value in the environment is detected; the negative pressure connector of the wind pressure sensor 5 detects the negative pressure value of the fan 6 through the negative pressure taking pipe 4. Since the pressure value in the environment is greater than the pressure value in the air box 8, the pressure difference detected by the wind pressure sensor 5 increases. According to the parameters displayed on the display panel 7, the parameters of the gas heating water boiler are adjusted and set so that the gas heating water boiler can work normally.

[0071] In this embodiment, the pressure taking point is changed by providing a pressure taking device. Compared with the solution in the prior art of removing components such as the surface shell and the air box cover to lead the pressure taking point from the inside of the air box to the outside to increase the pressure difference of the detection point, this is simpler, faster and easier to install, and will not cause customers to mistakenly believe that the product is defective.

[0072] Example 2

[0073] like Fig. 9 and Fig.10As shown, this embodiment provides a gas water heater, which is equipped with the pressure taking device 2 in embodiment 1. The gas water heater is specifically a gas heating water heater, including a gas pipe, a gas valve, a flow regulating valve, a fan 6, an ignition needle, a burner, a flame feedback needle, a wind pressure sensor 5, a pressure taking pipe, a control system, a display panel 7, and an air box 8. The control system is respectively connected to the gas valve, the fan 6, the ignition needle, the flame feedback needle, the wind pressure sensor 5, and the display panel 7. The pressure taking pipe includes a positive pressure taking pipe 3 and a negative pressure taking pipe 4.

[0074] The pressure taking device 2 is fixed on the top plate 1 of the gas heating water heater by screws, and the first pressure taking joint 217 and the second pressure taking joint 218 respectively pass through the assembly holes on the top plate 1 of the gas heating water heater and enter the air box 8 of the gas heating water heater, so that the first channel 211 of the pressure taking device 2 is connected to the air box 8 of the gas heating water heater, the second channel 212 is connected to the positive pressure taking pipe 3 of the gas heating water heater, and the third channel 213 is connected to the outside of the air box 8, and the regulating part of the valve core 22 is located outside the air box 8. Sealing pads are respectively provided between the first pressure taking joint 217 and the top plate 1 of the gas heating water heater, and between the second pressure taking joint 218 and the top plate 1 of the gas heating water heater for sealing. The second pressure taking joint 218 of the pressure taking device 2 is connected to the positive pressure joint of the wind pressure sensor 5 through the positive pressure taking pipe 3, and the negative pressure joint of the wind pressure sensor 5 is connected to the negative pressure joint of the fan 6 through the negative pressure taking pipe 4.

[0075] In this embodiment, since the gas water heater is equipped with the pressure taking device in Embodiment 1, the pressure taking point can be adjusted quickly and conveniently, so that the gas water heater can be used normally and customers will not mistakenly believe that the product is defective.

[0076] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A pressure taking device for a gas water heater, characterized in that: include: A valve body (21), wherein the valve body (21) is provided with a mounting hole (210), and a first channel (211), a second channel (212), and a third channel (213) respectively connected to the mounting hole (210); the first channel (211) is suitable for connecting to an air box (8) of the gas water heater, the second channel (212) is suitable for connecting to a positive pressure taking pipe (3) of the gas water heater, and the third channel (213) is suitable for connecting to the outside of the air box (8); The valve core (22) is installed in the installation hole (210), and the regulating part of the valve core (22) is at least partially located outside the air box (8); wherein, The valve core (22) has a first working position and a second working position; in the first working position, the valve core (22) seals the third channel (213), so that the second channel (212) is in communication with the first channel (211); in the second working position, the valve core (22) seals the first channel (211), so that the second channel (212) is in communication with the third channel (213).

2. The pressure taking device according to claim 1, characterized in that: The valve core (22) is a three-way valve core having a first passage (221), a second passage (222) and a third passage (223); In the first working position, the second passage (222) is in communication with the second channel (212), and the first passage (221) is in communication with the first channel (211); In the second working position, the second passage (222) is in communication with the third passage (213), and the third passage (223) is in communication with the second passage (212).

3. The pressure taking device according to claim 2, characterized in that: The three-way valve core is a mechanical valve core that can rotate around its own axis so that the valve core (22) can switch between the first working position and the second working position. The mounting hole (210) is a circular hole. The valve core (22) is cylindrical. The first passage (221), the second passage (222) and the third passage (223) pass through the outer wall of the valve core (22).

4. The pressure taking device according to claim 3, characterized in that: The pressure taking device is provided with a limit structure, which is used to limit the rotation angle of the valve core (22), so that the valve core (22) has a first rotation limit position and a second rotation limit position, the first rotation limit position corresponds to the first working position, and the second rotation limit position corresponds to the second working position.

5. The pressure taking device according to claim 4, characterized in that: The limiting structure comprises a limiting groove (233) and a limiting block (224) that are slidably matched.

6. The pressure taking device according to claim 3, characterized in that: The regulating part is a lock core (225) arranged on the top surface of the valve core (22).

7. The pressure taking device according to claim 6, characterized in that: It also comprises a cover plate (23), wherein the cover plate (23) covers the valve body (21), and a clearance hole (231) is provided on the cover plate (23), and the lock core (225) enters the clearance hole (231).

8. The pressure taking device according to claim 2, characterized in that: The three-way valve core is a solenoid valve core.

9. The pressure taking device according to any one of claims 1 to 8, characterized in that: The valve body (21) further comprises a first pressure-taking joint (217) and a second pressure-taking joint (218); a first blind hole and a second blind hole are provided on the valve body (21); the first pressure-taking joint (217) and the second pressure-taking joint (218) are respectively installed in the first blind hole and the second blind hole; a first through hole (2170) in the first pressure-taking joint (217) is connected to the first channel (211); and a second through hole (2180) in the second pressure-taking joint (218) is connected to the second channel (212).

10. A gas water heater equipped with a pressure taking device according to any one of claims 1 to 9, characterized in that: include: Air box (8); A wind pressure sensor (5) is arranged in the air box (8); A fan (6) is arranged in the air box (8); A negative pressure sampling pipe (4), one end of which is connected to the wind pressure sensor (5), and the other end of which is connected to the negative pressure connector of the fan (6); A positive pressure sampling tube (3), one end of which is connected to the wind pressure sensor (5); wherein: The first channel (211) of the pressure taking device (2) is connected to the air box (8) of the gas water heater, the second channel (212) is connected to the other end of the positive pressure taking pipe (3) of the gas water heater, and the third channel (213) is connected to the outside of the air box (8), and the regulating part on the valve core (22) of the pressure taking device (2) is at least partially located outside the air box (8).

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