Differential pressure sensor quick release structure and float switch detection equipment

Abstract

The utility model belongs to the technical field of floating ball switch detection, and particularly relates to a differential pressure sensor quick release structure and floating ball switch detection equipment, the differential pressure sensor quick release structure comprises a differential pressure sensor, a mounting seat, a first quick release connector, a second quick release connector, a third quick release connector and a fourth quick release connector; the mounting seat is provided with a first channel and a second channel which are not communicated, the first channel is communicated with the bottom of the sampling tube, and the second channel is communicated with the top of the sampling tube; the first quick-release connector is mounted on the mounting seat and is communicated with the first channel; the second quick-release connector is mounted on the mounting seat and is communicated with the second channel; the third quick-release connector and the fourth quick-release connector are connected with the two ends of the differential pressure sensor respectively. The first quick-release connector is used for being matched with the third quick-release connector in an inserted mode. The second quick-release connector is used for being matched with the fourth quick-release connector in an inserted mode, the differential pressure sensor and the mounting base are connected in a quick-release mode, the dismounting mode of the differential pressure sensor is simple, and the dismounting efficiency is high.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of float ball switch detection, and particularly relates to a pressure difference sensor quick release structure and a float ball switch detection device. BACKGROUND

[0002] The auxiliary feed water tank of a nuclear power unit is an important water storage device, the feed water tank is provided with a sampling pipe, the sampling pipe and the feed water tank form a communicating vessel structure, the sampling pipe plays a role of displaying the liquid level of the feed water tank, the sampling pipe is provided with a plurality of liquid level gradients, each liquid level gradient is provided with a float ball switch corresponding thereto, and is used for displaying the liquid level of the feed water tank. The float ball switch needs to be verified each time during overhaul, and the accuracy of the float ball switch is usually verified by using a float ball switch detection device, the float ball switch detection device is internally provided with a pressure difference sensor, one side loop of the pressure difference sensor is connected with the bottom of the sampling pipe, and the other side loop of the pressure difference sensor is in communication with the top of the sampling pipe, the pressure difference sensor measures the pressure difference between the two loops, so that the liquid level height in the sampling pipe is obtained, and the verification of the float ball switch is completed. Since the pressure difference sensor needs to be disassembled from the float ball switch detection device for third party calibration and internal testing every year, how to improve the disassembly and assembly convenience of the pressure difference sensor is an important research direction of the float ball switch detection device. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the embodiment of the application is to provide a pressure difference sensor quick release structure and a float ball switch detection device, which can improve the disassembly and assembly convenience of the pressure difference sensor.

[0004] The technical scheme adopted by the embodiment of the application is:

[0005] In a first aspect, a pressure difference sensor quick release structure is provided, which comprises a pressure difference sensor, a mounting seat, a first quick release joint, a second quick release joint, a third quick release joint and a fourth quick release joint. The mounting seat has a first channel and a second channel which are not in communication. The first channel is used for communicating with the bottom of the sampling pipe, and the second channel is used for communicating with the top of the sampling pipe. The first quick release joint is mounted on the mounting seat and is in communication with the first channel. The second quick release joint is mounted on the mounting seat and is in communication with the second channel. The third quick release joint is connected with one end of the pressure difference sensor. The fourth quick release joint is connected with the other end of the pressure difference sensor. The first quick release joint is used for being inserted and matched with the third quick release joint to communicate one end of the pressure difference sensor with the first channel. The second quick release joint is used for being inserted and matched with the fourth quick release joint to communicate the other end of the pressure difference sensor with the second channel.

[0006] Optionally, the first quick release joint is provided with a first water stop valve, the first water stop valve is opened when the first quick release joint and the third quick release joint are connected, the first water stop valve is closed when the first quick release joint and the third quick release joint are disconnected, and / or the second quick release joint is provided with a second water stop valve, the second water stop valve is opened when the second quick release joint and the fourth quick release joint are connected, and the second water stop valve is closed when the second quick release joint and the fourth quick release joint are disconnected.

[0007] Optionally, the first quick release joint and the second quick release joint are arranged perpendicularly to the mounting base, and the first quick release joint and the second quick release joint are arranged on the same side of the mounting base.

[0008] Optionally, the differential pressure sensor is connected with a first right-angle adapter and a second right-angle adapter at two ends respectively, the first right-angle adapter is connected between the third quick release joint and one end of the differential pressure sensor to connect the differential pressure sensor and the third quick release joint, the second right-angle adapter is connected between the fourth quick release joint and the other end of the differential pressure sensor to connect the fourth quick release joint and the differential pressure sensor, and the third quick release joint and the fourth quick release joint are arranged on the same side of the differential pressure sensor.

[0009] Optionally, the first right-angle adapter is screwed with one end of the differential pressure sensor, and the second right-angle adapter is screwed with the other end of the differential pressure sensor.

[0010] Optionally, the quick release structure of the differential pressure sensor further comprises a first locking sleeve and a second locking sleeve, the first locking sleeve is sleeved at the connection position of the differential pressure sensor and the first right-angle adapter, and the first locking sleeve is used for locking the differential pressure sensor and the first right-angle adapter; the second locking sleeve is sleeved at the connection position of the differential pressure sensor and the second right-angle adapter, and the second locking sleeve is used for locking the differential pressure sensor and the second right-angle adapter.

[0011] Optionally, the outer peripheral wall of the first locking sleeve is provided with a first locking through hole, a first locking piece is screwed in the first locking through hole, and the first locking piece is used for abutting against the outer peripheral wall of the first right-angle adapter; the outer peripheral wall of the first locking sleeve is provided with a second locking through hole, a second locking piece is screwed in the second locking through hole, and the second locking piece is used for abutting against the outer peripheral wall of the differential pressure sensor; and / or the outer peripheral wall of the second locking sleeve is provided with a third locking through hole, a third locking piece is screwed in the third locking through hole, and the third locking piece is used for abutting against the outer peripheral wall of the second right-angle adapter; the outer peripheral wall of the second locking sleeve is provided with a fourth locking through hole, a fourth locking piece is screwed in the fourth locking through hole, and the fourth locking piece is used for abutting against the outer peripheral wall of the differential pressure sensor.

[0012] Optionally, the first channel and the second channel are respectively arranged at two ends of the mounting base.

[0013] Optionally, the mounting seat is provided with a first pipe joint and a second pipe joint for communicating with the sampling pipe, the first pipe joint is in communication with the first channel, the second pipe joint is in communication with the second channel, and the first pipe joint and the second pipe joint are located on the same side of the mounting seat.

[0014] In a second aspect, a float switch detection device is provided, including a body and the differential pressure sensor quick release structure described above, and a mounting seat for mounting on the body.

[0015] The differential pressure sensor quick release structure and the float switch detection device provided by the embodiments of the present application have at least one of the following technical effects: the differential pressure sensor quick release joint is used in the following way: the first quick release joint and the third quick release joint are inserted into each other, so that the differential pressure sensor is in communication with the first channel; the second quick release joint and the fourth quick release joint are inserted into each other, so that the differential pressure sensor is in communication with the second channel; the first channel and the second channel are not in communication, so that a pressure difference exists between the first channel and the second channel, and the differential pressure sensor can measure the pressure difference, thereby obtaining the liquid level in the sampling pipe, and verifying the float switch. When the differential pressure sensor needs to be calibrated by a third party or internally tested, the third quick release joint and the fourth quick release joint are pulled out of the first quick release joint and the second quick release joint, respectively, so that the mounting seat and the differential pressure sensor can be separated, and the differential pressure sensor can be disassembled. In this process, the first quick release joint and the third quick release joint, and the second quick release joint and the fourth quick release joint are connected by quick release insertion, so that the differential pressure sensor can be disassembled in a simple way, with high disassembly efficiency and little damage to the first quick release joint, the third quick release joint, the second quick release joint and the fourth quick release joint, thereby improving the connection stability of the differential pressure sensor and the mounting seat. In addition, the insertion between the first quick release joint and the third quick release joint, and the second quick release joint and the fourth quick release joint has good sealing performance, thereby improving the detection accuracy of the differential pressure sensor.

[0016] The above description is only a summary of the technical solutions of the present application. In order to more clearly understand the technical means of the present application, the specific embodiments of the present application can be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following will describe the specific embodiments of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0018] Figure 1Structure diagram of quick release structure of differential pressure sensor provided for some embodiments of the present application Figure 1 .

[0019] Figure 2 For Figure 1 Structure diagram of quick release structure of differential pressure sensor Figure 2 .

[0020] Figure 3 For the cross-sectional view along line A-A in Figure 2

[0021] Figure 4 Structure diagram of differential pressure sensor shown in Figure 1

[0022] Figure 5 Structure diagram of mounting seat shown in Figure 1

[0023] In the drawings, various reference signs represent:

[0024] ​​​100, differential pressure sensor quick release structure; 10, differential pressure sensor; 11, first threaded interface; 12, second threaded interface; 20, mounting seat; 21, first channel; 211, first sub-channel; 2111, first opening; 212, second sub-channel; 2121, second opening; 213, third sub-channel; 2131, third opening; 22, second channel; 221, fourth sub-channel; 2211, fourth opening; 222, fifth sub-channel; 2221, fifth opening; 223, sixth sub-channel; 2231, sixth opening; 23, first pipe joint; 24, second pipe joint; 25, third pipe joint; 26, fourth pipe joint; 27, first plug; 28, second plug; 30, first quick release joint; 31, first stop valve; 311, first fixed seat; 3111, first through hole; 3112, first through hole; 312, first valve rod; 313, first valve body; 314, first elastic member; 32, third channel; 40, second quick release joint; 41, second stop valve; 411, second fixed seat; 4111, second through hole; 4112, second through hole; 412, second valve rod; 413, second valve body; 414, second elastic member; 42, fourth channel; 50, third quick release joint; 51, third stop valve; 511, third fixed seat; 5111, third through hole; 5112, third through hole; 512, third valve rod; 513, third valve body; 514, third elastic member; 52, fifth channel; 60, fourth quick release joint; 61, fourth stop valve; 611, fourth fixed seat; 6111, fourth through hole; 6112, fourth through hole; 612, fourth valve rod; 613, fourth valve body; 614, fourth elastic member; 62, sixth channel; 71, first right angle adapter; 72, second right angle adapter; 81, first locking sleeve; 811, first locking through hole; 812, second locking through hole; 82, second locking sleeve; 821, third locking through hole; 822, fourth locking through hole. DETAILED DESCRIPTION

[0025] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0026] In the description of the embodiments of the present application, the terms “first” and “second” are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with “first” and “second” can explicitly or implicitly include at least one of the features.

[0027] In the description of the application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0028] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and other terms should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0030] In the description of the application, it should be understood that the terms "in", "out", "side", "up", "bottom", "front", "back" and the like indicate the orientation or positional relationship only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0031] In the description of the application, it should be noted that the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone.

[0032] It should also be noted that the same reference signs in the embodiments of the present application represent the same component or the same part, and for the same parts in the embodiments of the present application, only one part or component may be marked with reference signs in the drawings, and it should be understood that the reference signs are also applicable to other identical parts or components.

[0033] The auxiliary feed water tank of a nuclear power unit is an important water storage device. The feed water tank is provided with a sampling pipe, the sampling pipe and the feed water tank form a communicating vessel structure, the sampling pipe plays a role of displaying the liquid level of the feed water tank, the sampling pipe is provided with a plurality of liquid level gradients, each liquid level gradient is provided with a float ball switch correspondingly, and the float ball switch is used for displaying the liquid level of the feed water tank. The float ball switch needs to be verified every overhaul, and the accuracy of the float ball switch is usually verified by using a float ball switch detection device. The float ball switch detection device is provided with a differential pressure sensor, one side loop of the differential pressure sensor is connected with the bottom of the sampling pipe, the other side loop of the differential pressure sensor is communicated with the top of the sampling pipe, the differential pressure sensor measures the pressure difference between the two loops, so that the liquid level height in the sampling pipe is obtained, and the verification of the float ball switch is completed. The differential pressure sensor needs to be taken out from the float ball switch detection device every year for third party calibration and internal test. The differential pressure sensor is usually fixed in the float ball switch detection device by using screws, bolts and other components, but the disassembly and assembly operation of the fixing components such as screws and bolts is complicated, and it is not conducive to the quick disassembly and assembly of the differential pressure sensor.

[0034] The quick disassembly structure of the differential pressure sensor can be applied to the float ball switch detection device, and of course, the differential pressure sensor can also be applied to other devices, which is not limited herein.

[0035] The quick disassembly structure of the differential pressure sensor can be applied to the float ball switch detection device, and of course, the differential pressure sensor can also be applied to other devices, which is not limited herein.

[0036] The quick disassembly structure of the differential pressure sensor can be applied to the float ball switch detection device, and of course, the differential pressure sensor can also be applied to other devices, which is not limited herein. Figures 1 to 5 The quick disassembly structure of the differential pressure sensor can be applied to the float ball switch detection device, and of course, the differential pressure sensor can also be applied to other devices, which is not limited herein.

[0037] Figures 1 to 3 Referring to FIG. 1, in some embodiments, the quick disassembly structure 100 of the differential pressure sensor comprises a differential pressure sensor 10, a mounting seat 20, a first quick disassembly joint 30, a second quick disassembly joint 40, a third quick disassembly joint 50 and a fourth quick disassembly joint 60; the mounting seat 20 has a first channel 21 and a second channel 22 which are not communicated, the first channel 21 is used for being communicated with the bottom of the sampling pipe, and the second channel 22 is used for being communicated with the top of the sampling pipe; the first quick disassembly joint 30 is installed on the mounting seat 20, and the first quick disassembly joint 30 is communicated with the first channel 21; the second quick disassembly joint 40 is installed on the mounting seat 20, and the second quick disassembly joint 40 is communicated with the second channel 22; the third quick disassembly joint 50 is connected with one end of the differential pressure sensor 10; the fourth quick disassembly joint 60 is connected with the other end of the differential pressure sensor 10; wherein the first quick disassembly joint 30 is used for being inserted and matched with the third quick disassembly joint 50, so as to communicate one end of the differential pressure sensor 10 and the first channel 21; and the second quick disassembly joint 40 is used for being inserted and matched with the fourth quick disassembly joint 60, so as to communicate the other end of the differential pressure sensor 10 and the second channel 22.

[0038] ​The differential pressure sensor 10 can refer to a sensor for measuring the differential pressure between two pressure points; the differential pressure sensor 10 is used to measure the pressure difference between the first channel 21 and the second channel 22. The differential pressure sensor 10 can be, but is not limited to, a capacitive differential pressure sensor or a piezoresistive differential pressure sensor.

[0039] The mounting seat 20 can refer to the mounting base of the differential pressure sensor 10, the first channel 21 and the second channel 22 are arranged in the mounting seat 20, the first channel 21 and the second channel 22 are not connected, and the first channel 21 and the second channel 22 are two independent channels; the first channel 21 is used for communication with the bottom of the sampling tube, the second channel 22 is in communication with the top of the sampling tube, the pressure at the bottom of the sampling tube is greater than the pressure at the top of the sampling tube, and the first channel 21 can also be referred to as a high-pressure channel, and the second channel 22 can also be referred to as a low-pressure channel.

[0040] The first quick release connector 30 is mounted on the mounting seat 20, and the first quick release connector 30 is in communication with the first channel 21; the second quick release connector 40 is mounted on the mounting seat 20, and the second quick release connector 40 is in communication with the second channel 22; the third quick release connector 50 and the fourth quick release connector 60 are respectively mounted on both ends of the differential pressure sensor 10.

[0041] The first quick release connector 30 and the third quick release connector 50 form a quick release connector assembly by being inserted into each other, one of the first quick release connector 30 and the third quick release connector 50 is a female connector in the quick release connector assembly, and the other is a male connector in the quick release connector assembly. Among them, the female connector and the male connector can be quickly inserted and separated.

[0042] The second quick release connector 40 and the fourth quick release connector 60 form a quick release connector assembly by being inserted into each other, one of the second quick release connector 40 and the fourth quick release connector 60 is a female connector in the quick release connector assembly, and the other is a male connector in the quick release connector assembly.

[0043] The differential pressure sensor 10 quick release joint of the embodiment of the present application is used, the first quick release joint 30 and the third quick release joint 50 are inserted, so that the differential pressure sensor 10 is communicated with the first channel 21, the second quick release joint 40 and the fourth quick release joint 60 are inserted, so that the differential pressure sensor 10 is communicated with the second channel 22, the first channel 21 and the second channel 22 are not communicated, so that the first channel 21 and the second channel 22 exist pressure difference, the differential pressure sensor 10 can measure the pressure difference, so that the liquid level in the sampling tube is obtained, and then the verification of the float switch is realized. When the differential pressure sensor 10 needs to be calibrated by a third party or internally tested, the third quick release joint 50 and the fourth quick release joint 60 are pulled out from the first quick release joint 30 and the second quick release joint 40 respectively, so that the separation of the mounting seat 20 and the differential pressure sensor 10 is realized, so that the differential pressure sensor 10 is disassembled. And in this process, the first quick release joint 30 and the third quick release joint 50 and the second quick release joint 40 and the fourth quick release joint 60 adopt the quick release insertion connection mode, the disassembly mode of the differential pressure sensor 10 is simple, the disassembly efficiency is high, and the disassembly of the differential pressure sensor 10 has little damage to the first quick release joint 30, the third quick release joint 50, the second quick release joint 40 and the fourth quick release joint 60, which is beneficial to improve the connection stability of the differential pressure sensor 10 and the mounting seat 20; in addition, the insertion sealing property between the first quick release joint 30 and the third quick release joint 50 and the second quick release joint 40 and the fourth quick release joint 60 is good, which is beneficial to improve the detection accuracy of the differential pressure sensor 10.

[0044] In some embodiments, the first quick release joint 30 is provided with a first water stop valve 31, the first water stop valve 31 is opened when the first quick release joint 30 and the third quick release joint 50 are inserted, and the first water stop valve 31 is closed when the first quick release joint 30 and the third quick release joint 50 are disconnected.

[0045] The first quick release joint 30 is provided with a third channel 32, the first channel 21 is communicated with the differential pressure sensor 10 through the third channel 32, the first water stop valve 31 is located in the third channel 32, the first water stop valve 31 can be a component capable of opening and closing the third channel 32, the first water stop valve 31 is opened when the first quick release joint 30 and the third quick release joint 50 are inserted, the first channel 21 and the differential pressure sensor 10 are communicated through the third channel 32, so that the differential pressure sensor 10 can measure the pressure difference between the first channel 21 and the second channel 22; when the first quick release joint 30 and the third quick release joint 50 are separated, the first water stop valve 31 can close the third channel 32, so that the liquid in the first channel 21 will not flow out, so that the first water stop valve 31 can automatically close the third channel 32 after the first quick release joint 30 and the third quick release joint 50 are separated, without the need to close the third channel 32, so that the disassembly operation of the differential pressure sensor 10 is more simple and convenient.

[0046] For example, the first water stop valve 31 comprises a first fixed seat 311, a first valve rod 312, a first valve body 313 and a first elastic member 314. The first fixed seat 311 is fixed to the third channel 32 and has a first through hole 3111 and a first through hole 3112. One end of the first valve rod 312 is arranged in the first through hole 3111. The first valve body 313 is arranged at the other end of the first valve rod 312. The first elastic member 314 is sleeved on the first valve rod 312 and is located between the first fixed seat 311 and the first valve body 313.

[0047] When the first quick release connector 30 and the third quick release connector 50 are connected, the first water stop valve 31 is opened. The third quick release connector 50 pushes the first valve body 313 to move towards the first fixed seat 311 and compresses the first elastic member 314. A first flow channel is formed between the outer circumferential wall of the first valve body 313 and the inner circumferential wall of the third channel 32. The first channel 21 is in communication with the pressure difference sensor 10 through the first through hole 3112 and the first flow channel.

[0048] When the first quick release connector 30 and the third quick release connector 50 are disconnected, the first water stop valve 31 is closed. The third quick release connector 50 no longer applies force to the first valve body 313. Under the action of the elastic restoring force of the first elastic member 314, the first valve body 313 is automatically pushed to abut against the inner circumferential wall of the third channel 32, thereby closing the third channel 32 and the first quick release connector 30.

[0049] The first valve body 313 can be conical. The third channel 32 is provided with a conical surface to abut against the first valve body 313 and close the third channel 32.

[0050] Of course, in other examples, the first water stop valve 31 can also have other structures, which are not limited herein.

[0051] In some embodiments, the second quick release connector 40 is provided with a second water stop valve 41. When the second quick release connector 40 and the fourth quick release connector 60 are connected, the second water stop valve 41 is opened. When the second quick release connector 40 and the fourth quick release connector 60 are disconnected, the second water stop valve 41 is closed.

[0052] The second quick-release joint 40 is provided with a fourth channel 42, the second channel 22 communicates with the differential pressure sensor 10 through the fourth channel 42, and the second stop valve 41 is located in the fourth channel 42. The second stop valve 41 can be a component capable of opening and closing the fourth channel 42. When the second quick-release joint 40 and the fourth quick-release joint 60 are inserted, the second stop valve 41 is opened, the second channel 22 and the differential pressure sensor 10 communicate through the fourth channel 42, so that the differential pressure sensor 10 can measure the pressure difference between the first channel 21 and the second channel 22. When the second quick-release joint 40 and the fourth quick-release joint 60 are separated, the second stop valve 41 can close the fourth channel 42. Thus, after the second quick-release joint 40 and the fourth quick-release joint 60 are separated, the second stop valve 41 can automatically close the fourth channel 42, without the need to close the fourth channel 42, making the disassembly operation of the differential pressure sensor 10 more simple and convenient.

[0053] For example, the second stop valve 41 includes a second fixed seat 411, a second valve rod 412, a second valve body 413, and a second elastic member 414. The second fixed seat 411 is fixed to the fourth channel 42 and has a second through hole 4111 and a second through hole 4112. One end of the second valve rod 412 is inserted into the second through hole 4111. The second valve body 413 is installed on the other end of the second valve rod 412. The second elastic member 414 is sleeved on the second valve rod 412 and located between the second fixed seat 411 and the second valve body 413.

[0054] When the second quick-release joint 40 and the fourth quick-release joint 60 are inserted, the second stop valve 41 is opened, the fourth quick-release joint 60 pushes the second valve body 413 to move towards the second fixed seat 411 and compresses the second elastic member 414. A second flow channel is formed between the outer peripheral wall of the second valve body 413 and the inner peripheral wall of the fourth channel 42. The second channel 22 communicates with the differential pressure sensor 10 through the second through hole 4112 and the second flow channel.

[0055] When the second quick-release joint 40 and the fourth quick-release joint 60 are separated, the second stop valve 41 is closed, the fourth quick-release joint 60 loses the force acting on the second valve body 413, and the second elastic member 414 automatically pushes the second valve body 413 to abut against the inner peripheral wall of the fourth channel 42 under the action of its elastic restoring force, thereby closing the fourth channel 42 and the second quick-release joint 40.

[0056] The second valve body 413 can be conical, and the fourth channel 42 is provided with a conical surface to abut against the second valve body 413 and close the fourth channel 42.

[0057] Of course, in other examples, the second stop valve 41 can also have other structures, which are not limited herein.

[0058] In some embodiments, the first quick-release joint 30 is provided with a first water stop valve 31, which is opened when the first quick-release joint 30 and the third quick-release joint 50 are connected, and is closed when the first quick-release joint 30 and the third quick-release joint 50 are disconnected. The second quick-release joint 40 is provided with a second water stop valve 41, which is opened when the second quick-release joint 40 and the fourth quick-release joint 60 are connected, and is closed when the second quick-release joint 40 and the fourth quick-release joint 60 are disconnected. After the differential pressure sensor 10 is removed from the mounting base 20, the first water stop valve 31 and the second water stop valve 41 can be automatically closed to the first quick-release joint 30 and the second quick-release joint 40, respectively, without the need for personnel to close the operation, so that the disassembly operation of the differential pressure sensor 10 is more simple and convenient.

[0059] In some embodiments, the third quick-release joint 50 is provided with a fifth channel 52 and a third water stop valve 51, the fifth channel 52 is in communication with the differential pressure sensor 10, and the third water stop valve 51 is located in the fifth channel 52. The third water stop valve 51 can be a component that can open and close the fifth channel 52. When the first quick-release joint 30 and the third quick-release joint 50 are connected, the third water stop valve 51 is opened, and the first channel 21 and the differential pressure sensor 10 are in communication through the fifth channel 52, so that the differential pressure sensor 10 can measure the pressure difference between the first channel 21 and the second channel 22. When the first quick-release joint 30 and the third quick-release joint 50 are separated, the third water stop valve 51 can close the fifth channel 52.

[0060] For example, the third water stop valve 51 includes a third fixed seat 511, a third valve rod 512, a third valve body 513, and a third elastic member 514. The third fixed seat 511 is fixed to the fifth channel 52, and has a third through hole 5111 and a third through hole 5112. One end of the third valve rod 512 is inserted into the third through hole 5111. The third valve body 513 is installed on the other end of the third valve rod 512. The third elastic member 514 is sleeved on the third valve rod 512, and is located between the third fixed seat 511 and the third valve body 513.

[0061] When the first quick release joint 30 and the third quick release joint 50 are connected, the first water stop valve 31 and the third water stop valve 51 are opened, the first valve body 313 and the third valve body 513 of the first quick release joint 30 are oppositely arranged, the third valve body 513 pushes the first valve body 313 to move towards the first fixed seat 311 and compresses the first elastic member 314, a first flow passage is formed between the outer peripheral wall of the first valve body 313 and the inner peripheral wall of the third passage 32, at the same time, the first valve body 313 pushes the third valve body 513 to move towards the third fixed seat 511 and compresses the third elastic member 514, a third flow passage is formed between the outer peripheral wall of the third valve body 513 and the inner peripheral wall of the fifth passage 52, the first passage 21 and the differential pressure sensor 10 are communicated through the first through hole 3112, the first flow passage, the third through hole 5112 and the third flow passage.

[0062] When the first quick release joint 30 and the third quick release joint 50 are separated, the first water stop valve 31 and the third water stop valve 51 are closed, the first valve body 313 and the third valve body 513 are separated, the first elastic member 314 automatically pushes the first valve body 313 to abut against the inner peripheral wall of the third passage 32 under the action of the elastic restoring force of itself, so as to close the third passage 32, the third elastic member 514 automatically pushes the third valve body 513 to abut against the inner peripheral wall of the fifth passage 52 under the action of the elastic restoring force of itself, so as to close the fifth passage 52.

[0063] The third valve body 513 can be conical, and the fifth passage 52 is provided with a conical surface to abut against the third valve body 513 to close the fifth passage 52.

[0064] Of course, in other examples, the third water stop valve 51 can also refer to other structures, which are not limited herein.

[0065] In some embodiments, the fourth quick release joint 60 is provided with a sixth passage 62 and a fourth water stop valve 61, the sixth passage 62 is communicated with the differential pressure sensor 10, the fourth water stop valve 61 is located in the sixth passage 62, the fourth water stop valve 61 can refer to a component capable of opening and closing the sixth passage 62, when the second quick release joint 40 and the fourth quick release joint 60 are connected, the fourth water stop valve 61 is opened, the second passage 22 and the differential pressure sensor 10 are communicated through the sixth passage 62, so that the differential pressure sensor 10 can measure the pressure difference between the first passage 21 and the second passage 22; when the second quick release joint 40 and the fourth quick release joint 60 are separated, the fourth water stop valve 61 can close the sixth passage 62.

[0066] For example, the fourth water stop valve 61 comprises a fourth fixed seat 611, a fourth valve rod 612, a fourth valve body 613 and a fourth elastic member 614. The fourth fixed seat 611 is fixed to the sixth channel 62 and has a fourth through hole 6111 and a fourth through hole 6112. One end of the fourth valve rod 612 is arranged in the fourth through hole 6111. The fourth valve body 613 is arranged at the other end of the fourth valve rod 612. The fourth elastic member 614 is arranged outside the fourth valve rod 612 and between the fourth fixed seat 611 and the fourth valve body 613.

[0067] When the second quick release connector 40 and the fourth quick release connector 60 are connected, the second water stop valve 41 and the fourth water stop valve 61 are opened. The second valve body 413 and the fourth valve body 613 are arranged oppositely. The fourth valve body 613 pushes the second valve body 413 to move towards the second fixed seat 411 and compresses the second elastic member 414. The outer peripheral wall of the second valve body 413 and the inner peripheral wall of the fourth channel 42 form a second flow channel. Meanwhile, the second valve body 413 pushes the fourth valve body 613 to move towards the fourth fixed seat 611 and compresses the fourth elastic member 614. The outer peripheral wall of the fourth valve body 613 and the inner peripheral wall of the sixth channel 62 form a fourth flow channel. The second channel 22 and the differential pressure sensor 10 are connected through the second through hole 4112, the second flow channel, the fourth through hole 6112 and the fourth flow channel.

[0068] When the second quick release connector 40 and the fourth quick release connector 60 are separated, the second water stop valve 41 and the fourth water stop valve 61 are closed. The second valve body 413 and the fourth valve body 613 are separated. The second elastic member 414 automatically pushes the second valve body 413 to abut against the inner peripheral wall of the fourth channel 42 under the elastic restoring force of the second elastic member 414, so as to close the fourth channel 42. The fourth elastic member 614 automatically pushes the fourth valve body 613 to abut against the inner peripheral wall of the sixth channel 62 under the elastic restoring force of the fourth elastic member 614, so as to close the sixth channel 62.

[0069] The fourth valve body 613 can be conical. The sixth channel 62 is provided with a conical surface to abut against the fourth valve body 613 and close the sixth channel 62.

[0070] Of course, in other examples, the fourth water stop valve 61 can also have other structures, which are not limited herein.

[0071] In some embodiments, the first quick release connector 30 and the second quick release connector 40 are arranged perpendicularly to the mounting seat 20 and are arranged on the same side of the mounting seat 20.

[0072] The first quick release joint 30 and the second quick release joint 40 are installed on the same side of the mounting base 20, and the axis of the first quick release joint 30 and the axis of the second quick release joint 40 are both perpendicular to the side, so that the plug-in direction of the first quick release joint 30 and the third quick release joint 50 is the same as the plug-in direction of the second quick release joint 40 and the fourth quick release joint 60.

[0073] By adopting the technical scheme of the embodiment, the third quick release joint 50 and the fourth quick release joint 60 are inserted into or pulled out of the first quick release joint 30 and the second quick release joint 40 respectively from the same side of the mounting base 20 and in the direction perpendicular to the mounting base 20, so that the disassembly and assembly of the differential pressure sensor 10 are simpler.

[0074] In some embodiments, the differential pressure sensor 10 is connected with a first right-angle adapter 71 and a second right-angle adapter 72 respectively, the first right-angle adapter 71 is connected between the third quick release joint 50 and one end of the differential pressure sensor 10 to communicate the differential pressure sensor 10 and the third quick release joint 50, and the second right-angle adapter 72 is connected between the fourth quick release joint 60 and the other end of the differential pressure sensor 10 to communicate the fourth quick release joint 60 and the differential pressure sensor 10, and the third quick release joint 50 and the fourth quick release joint 60 are located on the same side of the differential pressure sensor 10.

[0075] The differential pressure sensor 10 is in a T-shaped structure, the two ends of the differential pressure sensor 10 arranged in the transverse direction are communicated with the first right-angle adapter 71 and the second right-angle adapter 72 respectively, and the third quick release joint 50 and the fourth quick release joint 60 are installed on the first right-angle adapter 71 and the second right-angle adapter 72 respectively and located on the same side of the differential pressure sensor 10.

[0076] By adopting the technical scheme of the embodiment, the first right-angle adapter 71 is connected between the third quick release joint 50 and the differential pressure sensor 10, so that the connection direction of the third quick release joint 50 can be changed, and the third quick release joint 50 is arranged towards the first quick release joint 30 to facilitate the relative plug-in of the first quick release joint 30 and the third quick release joint 50; similarly, the second right-angle adapter 72 is connected between the fourth quick release joint 60 and the differential pressure sensor 10, so that the connection direction of the fourth quick release joint 60 can be changed, and the fourth quick release joint 60 is arranged towards the second quick release joint 40 to facilitate the relative plug-in of the fourth quick release joint 60 and the second quick release joint 40, and the third quick release joint 50 and the fourth quick release joint 60 are located on the same side of the differential pressure sensor 10, which can be adapted to the first quick release joint 30 and the second quick release joint 40 located on the same side of the mounting base 20, so that the first quick release joint 30 and the second quick release joint 40 can be disassembled and assembled with the third quick release joint 50 and the fourth quick release joint 60 respectively, and the disassembly and assembly of the differential pressure sensor 10 are simpler and more convenient.

[0077] Please refer toFigure 4 As shown, in some embodiments, the first right-angle adapter 71 is screwed with one end of the differential pressure sensor 10, and the second right-angle adapter 72 is screwed with the other end of the differential pressure sensor 10.

[0078] For example, one end of the differential pressure sensor 10 is provided with a first threaded interface 11, the other end of the differential pressure sensor 10 is provided with a second threaded interface 12, the first right-angle adapter 71 is screwed with the first threaded interface 11, and the second right-angle adapter 72 is screwed with the second threaded interface 12. Of course, in other examples, other screwing methods can also be used.

[0079] By adopting the technical scheme of this embodiment, one end of the differential pressure sensor 10 is screwed with the first right-angle adapter 71, and the other end of the differential pressure sensor 10 is screwed with the second right-angle adapter 72, so that the connection operation is simple, and the connection reliability is good; the sealing performance between the first right-angle adapter 71, the second right-angle adapter 72 and the differential pressure sensor 10 is good, which is conducive to improving the connection stability and the measurement accuracy of the differential pressure sensor 10.

[0080] Referring to Figures 1 to 3 As shown, in some embodiments, the quick-release structure 100 of the differential pressure sensor further includes a first locking sleeve 81 and a second locking sleeve 82, the first locking sleeve 81 is sleeved at the connection position of the differential pressure sensor 10 and the first right-angle adapter 71, and the first locking sleeve 81 is used to lock the differential pressure sensor 10 and the first right-angle adapter 71; the second locking sleeve 82 is sleeved at the connection position of the differential pressure sensor 10 and the second right-angle adapter 72, and the second locking sleeve 82 is used to lock the differential pressure sensor 10 and the second right-angle adapter 72.

[0081] In some examples, one end of the first locking sleeve 81 is sleeved on the first right-angle adapter 71, and the other end is sleeved on the first threaded interface 11 of the differential pressure sensor 10.

[0082] The first locking sleeve 81 can lock the first right-angle adapter 71 and the differential pressure sensor 10, and the first locking sleeve 81 can be fixedly connected with the first right-angle adapter 71, for example, the first locking sleeve 81 is welded, bonded, clamped, screwed, etc. with the first right-angle adapter 71. The first locking sleeve 81 can be fixedly connected with the differential pressure sensor 10, for example, the first locking sleeve 81 is welded, bonded, clamped, screwed, etc. with the differential pressure sensor 10.

[0083] The first locking sleeve 81 can lock the first right-angle adapter 71 and the differential pressure sensor 10, thereby reducing the risk of thread loosening between the first right-angle adapter 71 and the differential pressure sensor 10, and being conducive to improving the accuracy of detection of the differential pressure sensor 10.

[0084] In some examples, one end of the second locking sleeve 82 is sleeved on the second right-angle adapter 72, and the other end is sleeved on the second threaded interface 12 of the differential pressure sensor 10.

[0085] The second locking sleeve 82 can lock the second right-angle adapter 72 and the differential pressure sensor 10. The second locking sleeve 82 can be fixedly connected with the second right-angle adapter 72, for example, the second locking sleeve 82 is welded, bonded, clamped, screwed or the like with the second right-angle adapter 72. The second locking sleeve 82 can be fixedly connected with the differential pressure sensor 10, for example, the second locking sleeve 82 is welded, bonded, clamped, screwed or the like with the differential pressure sensor 10.

[0086] The second locking sleeve 82 can lock the second right-angle adapter 72 and the differential pressure sensor 10, thereby reducing the risk of thread loosening between the second right-angle adapter 72 and the differential pressure sensor 10, and facilitating to improve the accuracy of detection of the differential pressure sensor 10.

[0087] In some embodiments, the outer peripheral wall of the first locking sleeve 81 is provided with a first locking through hole 811, a first locking member is screwed in the first locking through hole 811, and the first locking member is used to abut against the outer peripheral wall of the first right-angle adapter 71. The outer peripheral wall of the first locking sleeve 81 is provided with a second locking through hole 812, a second locking member is screwed in the second locking through hole 812, and the second locking member is used to abut against the outer peripheral wall of the differential pressure sensor 10.

[0088] The first locking member is provided with an external thread which is screwed with an internal thread in the first locking through hole 811. The first locking member rotates in the first locking through hole 811, and the first locking member moves towards the first right-angle adapter 71, thereby abutting against the outer peripheral wall of the first right-angle adapter 71, so as to relatively fix the first locking sleeve 81 and the first right-angle adapter 71.

[0089] The second locking member is provided with an external thread which is screwed with an internal thread in the second locking through hole 812. The second locking member rotates in the second locking through hole 812, and the second locking member moves towards the differential pressure sensor 10, thereby abutting against the outer peripheral wall of the differential pressure sensor 10, so as to relatively fix the second locking sleeve 82 and the differential pressure sensor 10.

[0090] By abutting the first locking member against the first right-angle adapter 71 and abutting the second locking member against the differential pressure sensor 10, the first right-angle adapter 71 and the differential pressure sensor 10 are relatively fixed, thereby reducing the risk of thread loosening between the first right-angle adapter 71 and the differential pressure sensor 10, and facilitating to improve the accuracy of detection of the differential pressure sensor 10. Moreover, the locking structure is simple in structure and convenient to process and manufacture.

[0091] In some embodiments, the outer peripheral wall of the second locking sleeve 82 is provided with a third locking through hole 821, and a third locking member is screwed in the third locking through hole 821, and the third locking member is used to abut against the outer peripheral wall of the second right-angle adapter 72; the outer peripheral wall of the second locking sleeve 82 is provided with a fourth locking through hole 822, and a fourth locking member is screwed in the fourth locking through hole 822, and the fourth locking member is used to abut against the outer peripheral wall of the differential pressure sensor 10.

[0092] The third locking member is provided with an external thread which is screwed with an internal thread in the third locking through hole 821. The third locking member rotates in the third locking through hole 821, and the third locking member moves towards the second right-angle adapter 72, thereby abutting against the outer peripheral wall of the second right-angle adapter 72, so as to relatively fix the third locking sleeve and the second right-angle adapter 72.

[0093] The fourth locking member is provided with an external thread which is screwed with an internal thread in the fourth locking through hole 822. The fourth locking member rotates in the fourth locking through hole 822, and the fourth locking member moves towards the differential pressure sensor 10, thereby abutting against the outer peripheral wall of the differential pressure sensor 10, so as to relatively fix the fourth locking sleeve and the differential pressure sensor 10.

[0094] By abutting the third locking member against the second right-angle adapter 72 and abutting the fourth locking member against the differential pressure sensor 10, the second right-angle adapter 72 and the differential pressure sensor 10 are relatively fixed, the risk of loosening of the threads between the second right-angle adapter 72 and the differential pressure sensor 10 is reduced, and the accuracy of detection of the differential pressure sensor 10 is improved. Moreover, the locking structure is simple in structure and convenient to manufacture.

[0095] In some embodiments, the outer peripheral wall of the first locking sleeve 81 is provided with a first locking through hole 811, and a first locking member is screwed in the first locking through hole 811, and the first locking member is used to abut against the outer peripheral wall of the first right-angle adapter 71; the outer peripheral wall of the first locking sleeve 81 is provided with a second locking through hole 812, and a second locking member is screwed in the second locking through hole 812, and the second locking member is used to abut against the outer peripheral wall of the differential pressure sensor 10; the outer peripheral wall of the second locking sleeve 82 is provided with a third locking through hole 821, and a third locking member is screwed in the third locking through hole 821, and the third locking member is used to abut against the outer peripheral wall of the second right-angle adapter 72; the outer peripheral wall of the second locking sleeve 82 is provided with a fourth locking through hole 822, and a fourth locking member is screwed in the fourth locking through hole 822, and the fourth locking member is used to abut against the outer peripheral wall of the differential pressure sensor 10, so as to relatively lock the first right-angle adapter 71, the differential pressure sensor 10 and the second right-angle adapter 72, reduce the risk of loosening of the threads between the first right-angle adapter 71, the second right-angle adapter 72 and the differential pressure sensor 10, and improve the accuracy of detection of the differential pressure sensor 10. Moreover, the locking structure is simple in structure and convenient to manufacture.

[0096] Please combine Figure 3 And Figure 5 As shown in FIG. 1, in some embodiments, the first channel 21 and the second channel 22 are respectively located at two ends of the mounting base 20.

[0097] The first channel 21 and the second channel 22 are respectively located at two ends of the mounting base 20, so that the first channel 21 and the second channel 22 are spaced apart, which can reduce the mutual influence between the first channel 21 and the second channel 22, thereby improving the accuracy of the differential pressure sensor 10 measurement. In addition, the first channel 21 and the second channel 22 are located at two ends of the mounting base 20, which is also convenient for processing the first channel 21 and the second channel 22.

[0098] In some embodiments, the mounting base 20 is provided with a first pipe joint 23 and a second pipe joint 24 for connecting the sampling pipe, the first pipe joint 23 is in communication with the first channel 21, the second pipe joint 24 is in communication with the second channel 22, and the first pipe joint 23 and the second pipe joint 24 are located on the same side of the mounting base 20.

[0099] The first pipe joint 23 is used for the bottom of the sampling pipe to connect the pipeline, and the second pipe joint 24 is used for the top of the sampling pipe to connect the pipeline, so that the bottom of the sampling pipe is in communication with the first channel 21 and the top of the sampling pipe is in communication with the second channel 22, thereby realizing the verification of the float ball opening. In addition, the sampling pipe is in communication with the mounting base 20 through the first pipe joint 23 and the second pipe joint 24, and the sampling pipe does not need to be connected with the differential pressure sensor 10, so that the differential pressure sensor 10 can be connected with the sampling pipe when the differential pressure sensor 10 is installed on the mounting base 20, and the differential pressure sensor 10 can be connected with the sampling pipe when the differential pressure sensor 10 is removed from the mounting base 20, without the need to additionally disassemble the pipeline connection between the sampling pipe and the differential pressure sensor 10, which is conducive to improving the disassembly efficiency of the differential pressure sensor 10 and improving the sealing performance of the connection between the sampling pipe and the differential pressure sensor 10. The first pipe joint 23 and the second pipe joint 24 are located on the same side of the mounting base 20, which can facilitate the connection between the sampling pipe and the mounting base 20.

[0100] In some embodiments, the mounting base 20 is in a long strip structure, the first channel 21 includes a first sub-channel 211, a second sub-channel 212 and a third sub-channel 213, the first sub-channel 211, the second sub-channel 212 and the third sub-channel 213 are centrally intersected at a point and perpendicular to each other, the first sub-channel 211 penetrates through an end surface of the mounting base 20 and forms a first opening 2111, the other two second channels 22 penetrate through two surfaces adjacent to the end surface and form a second opening 2121 and a third opening 2131 respectively, the first opening 2111 is provided with a first plug 27 to close the first opening 2111, the first pipe joint 23 is installed at the second opening 2121, the first quick release joint 30 is installed at the third opening 2131, and the first pipe joint 23 and the first quick release joint 30 are connected through the second sub-channel 212 and the third sub-channel 213; the first plug 27 can close the first opening 2111, thereby reducing leakage and improving the accuracy of the differential pressure sensor 10.

[0101] In some embodiments, the mounting base 20 is in a long strip structure, the second channel 22 includes a fourth sub-channel 221, a fifth sub-channel 222 and a sixth sub-channel 223, the fourth sub-channel 221, the fifth sub-channel 222 and the sixth sub-channel 223 are centrally intersected at a point and perpendicular to each other, the fourth sub-channel 221 penetrates through the other end surface of the mounting base 20 and forms a fourth opening 2211, the other two second channels 22 penetrate through two surfaces adjacent to the end surface and form a fifth opening 2221 and a sixth opening 2231 respectively, the fourth opening 2211 is provided with a second plug 28 to close the fourth opening 2211, the second pipe joint 24 is installed at the fifth opening 2221, the second quick release joint 40 is installed at the sixth opening 2231, and the first pipe joint 23 and the first quick release joint 30 are connected through the second sub-channel 212 and the third sub-channel 213; the second plug 28 can close the fourth opening 2211, thereby reducing leakage and improving the accuracy of the differential pressure sensor 10.

[0102] In some embodiments, the first quick release joint 30 and the mounting base 20 can be connected through the third pipe joint 25, facilitating the installation of the first quick release joint 30. Of course, in other embodiments, the first quick release joint 30 can also be directly installed on the mounting base 20.

[0103] In some embodiments, the second quick release joint 40 and the mounting base 20 can be connected through the fourth pipe joint 26, facilitating the installation of the second quick release joint 40. Of course, in other embodiments, the second quick release joint 40 can also be directly installed on the mounting base 20.

[0104] In some embodiments, the float switch detection device includes a body and the above-mentioned differential pressure sensor quick release structure 100, and the mounting base 20 is used to be installed on the body.

[0105] The body can refer to any one component in the float ball switch detection device, for example, the body can be a shell or other components of the float ball switch detection device.

[0106] In some examples, the mounting seat 20 can be fixed to the body by fasteners such as screws, bolts, etc., of course in other examples, the mounting seat 20 can also be fixed to the body by clamping, gluing, etc.

[0107] The float ball switch detection device of the embodiment of the application has the following advantages: the float ball switch detection device adopts the quick release structure 100 of the differential pressure sensor, the disassembly operation of the differential pressure sensor 10 is simple and efficient, and the use convenience of the float ball switch detection device is improved.

[0108] The above description of the various embodiments tends to emphasize the differences between the various embodiments, and the same or similar parts can be referred to each other, and for the sake of brevity, the same or similar parts will not be described again.

[0109] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the application, and not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application, and they should be covered in the scope of the claims and the specification of the application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A quick release structure of a differential pressure sensor, characterized by comprising: The differential pressure sensor comprises: a differential pressure sensor; a mounting seat having a first channel and a second channel which are not communicated, the first channel being used for communicating with the bottom of a sampling tube, and the second channel being used for communicating with the top of the sampling tube; a first quick release connector mounted on the mounting seat, the first quick release connector being communicated with the first channel; a second quick release connector mounted on the mounting seat, the second quick release connector being communicated with the second channel; a third quick release connector connected with one end of the differential pressure sensor; a fourth quick release connector connected with the other end of the differential pressure sensor; wherein the first quick release connector is used for being inserted into the third quick release connector to communicate the one end of the differential pressure sensor with the first channel, and the second quick release connector is used for being inserted into the fourth quick release connector to communicate the other end of the differential pressure sensor with the second channel.

2. The differential pressure sensor quick release structure of claim 1, wherein: A first water stop valve is arranged in the first quick release connector, the first water stop valve being opened when the first quick release connector is inserted into the third quick release connector, and the first water stop valve being closed when the first quick release connector is disconnected from the third quick release connector. And / or, a second water stop valve is arranged in the second quick release connector, the second water stop valve being opened when the second quick release connector is inserted into the fourth quick release connector, and the second water stop valve being closed when the second quick release connector is disconnected from the fourth quick release connector.

3. The differential pressure sensor quick release structure of claim 1 or 2, wherein: The first quick release connector and the second quick release connector are arranged perpendicularly to the mounting seat, and the first quick release connector and the second quick release connector are mounted on the same side of the mounting seat.

4. The differential pressure sensor quick release structure of claim 3, wherein: First and second right-angle adapters are respectively connected with the two ends of the differential pressure sensor, the first right-angle adapter being connected between the third quick release connector and one end of the differential pressure sensor to communicate the differential pressure sensor with the third quick release connector, and the second right-angle adapter being connected between the fourth quick release connector and the other end of the differential pressure sensor to communicate the fourth quick release connector with the differential pressure sensor, the third quick release connector and the fourth quick release connector being located on the same side of the differential pressure sensor. The first right-angle adapter is screwed with one end of the differential pressure sensor, and the second right-angle adapter is screwed with the other end of the differential pressure sensor.

5. The differential pressure sensor quick release structure of claim 4, wherein: The differential pressure sensor quick release structure further comprises first and second locking sleeves, the first locking sleeve being sleeved on the connection position of the differential pressure sensor and the first right-angle adapter, and the first locking sleeve being used for locking the differential pressure sensor and the first right-angle adapter, and the second locking sleeve being sleeved on the connection position of the differential pressure sensor and the second right-angle adapter, and the second locking sleeve being used for locking the differential pressure sensor and the second right-angle adapter.

6. The differential pressure sensor quick release structure of claim 5, wherein: A first locking hole is arranged on the outer peripheral wall of the first locking sleeve, a first locking member being screwed in the first locking hole, the first locking member being used for abutting against the outer peripheral wall of the first right-angle adapter, a second locking hole being arranged on the outer peripheral wall of the first locking sleeve, a second locking member being screwed in the second locking hole, the second locking member being used for abutting against the outer peripheral wall of the differential pressure sensor.

7. The differential pressure sensor quick release structure of claim 6, wherein: ​ And / or, the outer peripheral wall of the second locking sleeve is provided with a third locking through hole, a third locking member is screwed in the third locking through hole, and the third locking member is used for abutting against the outer peripheral wall of the second right-angle adapter; the outer peripheral wall of the second locking sleeve is provided with a fourth locking through hole, a fourth locking member is screwed in the fourth locking through hole, and the fourth locking member is used for abutting against the outer peripheral wall of the differential pressure sensor.

8. The differential pressure sensor quick release structure of claim 1 or 2, wherein: The first channel and the second channel are respectively located at two ends of the mounting seat.

9. The differential pressure sensor quick release structure of claim 8, wherein: The mounting seat is provided with a first pipe joint and a second pipe joint for communicating with the sampling pipe, the first pipe joint communicates with the first channel, the second pipe joint communicates with the second channel, and the first pipe joint and the second pipe joint are located on the same side of the mounting seat.

10. A float switch detection apparatus, characterized by: The body and the quick release structure of the differential pressure sensor according to any one of claims 1-9, wherein the mounting seat is used for mounting on the body.

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