Pressure detection tool

Abstract

The utility model relates to the technical field of refrigeration equipment pipeline pressure detection, and discloses a pressure detection tool. The pressure detection tool is used for testing the pressure of a refrigeration system pipeline of the refrigeration equipment, and comprises a first connecting pipe; the first end of the first connector is connected with the first end of the first connecting pipe, and the second end of the first connector is used for being detachably connected with a refrigerating system pipeline; the first end of the second connector is connected with the second end of the first communicating pipe, and the second end of the second connector is used for being detachably connected with a vacuumizing device; and the pressure detection device communicates with the first communicating pipe and is used for detecting the pressure in the first communicating pipe. According to the embodiment, the pressure in part of the refrigerating system pipeline connected with the vacuumizing device can be detected in real time, and the situation that the refrigerating system pipeline is excessively vacuumized is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration equipment pipeline pressure detection, for example, to a pressure detection tool. Background Art

[0002] With the improvement of living standards, refrigerators are entering more and more households. As a refrigeration device, refrigerators can refrigerate and freeze the food or other items stored in them. The refrigeration system of a refrigerator is the core component of the refrigeration equipment. The refrigerant circulates continuously in the refrigeration system pipeline to cool the inside of the refrigerator. During the refrigeration process of the refrigerator, the refrigerant will circulate continuously in the refrigeration system pipeline of the refrigerator. The exhaust end of the compressor belongs to the high-pressure area, and it belongs to the low-pressure area after passing through the capillary tube. After the refrigeration system pipeline of the refrigerator is assembled, the refrigerant in the system pipeline needs to be extracted through a vacuum device to test the sealing of the refrigeration system pipeline.

[0003] In the related art, a vacuum pump is generally connected to one end of a refrigeration system pipeline to extract the refrigerant in the refrigeration system pipeline, and a pressure gauge is added to the other end of the pipeline system to detect the pressure change in the pipeline.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] Since the inner diameters of the refrigeration system pipelines are not uniform, the pressure changes of the refrigeration system pipelines detected by the pressure gauge installed at the other end of the system pipelines are delayed, and the vacuuming capacity of the vacuum pumping device cannot be determined by the pressure value detected by the pressure gauge. This can easily cause the vacuum pumping device to over-vacuum the refrigeration system pipelines, causing damage to the compressor and its internal components due to low oil pressure of the lubricating oil, etc.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The disclosed embodiment provides a pressure detection tool to solve the problem that the vacuuming capacity of a vacuuming device cannot be determined by the pressure value detected by a pressure gauge, which may easily cause the vacuuming device to over-vacuum the refrigeration system pipeline.

[0009] According to the embodiments provided in the present application, a pressure detection tool is provided, and the pressure detection tool is used to test the pressure of the refrigeration system pipeline of the refrigeration equipment. The pressure detection tool includes: a first connecting pipe; a first joint, the first end of the first joint is connected to the first end of the first connecting pipe, and the second end of the first joint is used to be detachably connected to the refrigeration system pipeline; a second joint, the first end of the second joint is connected to the second end of the first connecting pipe, and the second end of the second joint is used to be detachably connected to the vacuum device; a pressure detection device, which is connected to the first connecting pipe and is used to detect the pressure in the first connecting pipe.

[0010] In some optional embodiments, the pressure detection tooling also includes: a tee pipe, the first end of the tee pipe and the second end of the tee pipe are connected in series to the first connecting pipe; a second connecting pipe, the first end of the second connecting pipe is connected to the third end of the tee pipe, and the second end of the second connecting pipe is connected to the pressure detection device.

[0011] In some optional embodiments, the pressure detection tool further includes: a valve, which is serially connected to the first connecting pipe and is located between the second joint and the three-way pipe, and the valve is used to close or open the first connecting pipe.

[0012] In some optional embodiments, the refrigeration system pipeline of the refrigeration equipment includes a first mating joint, the vacuum extraction device includes a second mating joint, and the first mating joint can be adapted to be connected with the second mating joint; the first joint is used to be adapted to be connected with the first mating joint, and the second joint is used to be adapted to be connected with the second mating joint.

[0013] In some optional embodiments, the first connector includes a first quick connector, the first mating connector includes a first Hansen valve, and the first quick connector is used to connect to the first Hansen valve.

[0014] In some optional embodiments, the second connector includes a second Hansen valve, the second mating connector includes a second quick connector, and the second Hansen valve is used to connect to the second quick connector.

[0015] In some optional embodiments, the first joint is welded to the first connecting pipe; and / or,

[0016] The second joint is welded to the second connecting pipe.

[0017] In some optional embodiments, the pressure detection device includes a pressure sensor or a pressure gauge.

[0018] In some optional embodiments, when the pressure detection device includes a pressure sensor, the pressure detection tooling further includes: a display component, which is communicatively connected to the pressure sensor and is used to display the pressure value detected by the pressure sensor.

[0019] In some optional embodiments, the material of the first connecting pipe includes copper material or stainless steel material; and / or,

[0020] The material of the first joint includes copper material or stainless steel material; and / or,

[0021] The material of the second joint includes copper material or stainless steel material.

[0022] The pressure detection tooling provided in the embodiments of the present disclosure can achieve the following technical effects:

[0023] With this optional embodiment, the two ends of the first connecting pipe are respectively connected to the first joint and the second joint, the first joint is connected to the refrigeration system pipeline, and the second joint is connected to the vacuum device. The vacuum device is connected to the refrigeration pipeline of the refrigeration equipment through the pressure detection tooling, and the vacuum device can extract the refrigerant in the refrigeration system pipeline of the refrigeration equipment through the second joint, the first joint and the first connecting pipe to increase the vacuum degree in the refrigeration system pipeline. The pressure detection device is connected to the first connecting pipe, and the two ends of the first connecting pipe are respectively connected to the corresponding refrigeration system pipeline and the vacuum device through the first joint and the second joint, and the pressure in the first connecting pipe is the same as the pressure in the refrigeration system pipeline. The pressure detection device can detect the pressure in the first connecting pipe, that is, the pressure detection device can detect the pressure in the part of the refrigeration system pipeline connected to the vacuum device in real time, and can determine the vacuum effect of the vacuum device on the refrigeration system pipeline according to the pressure, reduce the occurrence of excessive vacuum of the refrigeration system pipeline by the vacuum device, and improve the vacuum effect of the vacuum device on the refrigeration system pipeline.

[0024] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] One or more embodiments are exemplarily described by corresponding drawings, and these exemplary descriptions and drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are considered similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0026] Figure 1 is a structural schematic diagram of a pressure detection tool provided by an embodiment of the present disclosure from one perspective;

[0027] Figure 2 is a structural schematic diagram of a pressure detection tool provided by an embodiment of the present disclosure from another perspective;

[0028] Figure 3 is a structural schematic diagram of a pressure detection tool provided by an embodiment of the present disclosure from another perspective;

[0029] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure along the AA direction;

[0030] Figure 5 is a structural schematic diagram of a pressure detection tool provided by an embodiment of the present disclosure from another perspective;

[0031] Figure 6 yes Figure 5 Schematic diagram of the cross-sectional structure along the BB direction;

[0032] Figure 7 is a structural schematic diagram from one perspective of another pressure detection tooling provided by an embodiment of the present disclosure;

[0033] Figure 8 It is a structural schematic diagram of another pressure detection tooling provided by an embodiment of the present disclosure from another perspective.

[0034] Reference numerals:

[0035] 100, first connecting pipe; 110, first joint; 120, second joint; 130, valve;

[0036] 200. Pressure detection device;

[0037] 300, tee pipe;

[0038] 400. Second connecting pipe. DETAILED DESCRIPTION

[0039] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0040] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0041] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0042] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0043] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0044] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0045] The embodiment of the present disclosure provides a pressure detection tool, which is used to test the pressure of the refrigeration system pipeline of the refrigeration equipment. Figures 1 to 8 As shown, the pressure detection tooling includes a first connecting pipe 100, a first joint 110, a second joint 120 and a pressure detection device 200. The first end of the first joint 110 is connected to the first end of the first connecting pipe 100, and the second end of the first joint 110 is used to be detachably connected to the refrigeration system pipeline. The first end of the second joint 120 is connected to the second end of the first connecting pipe, and the second end of the second joint 120 is used to be detachably connected to the vacuum device. The pressure detection device 200 is connected to the first connecting pipe, and the pressure detection device 200 is used to detect the pressure in the first connecting pipe.

[0046] During the production process of refrigeration equipment, it is necessary to perform a pressure recovery test on the refrigeration system of the refrigeration equipment to test the sealing of the refrigeration system pipeline. The vacuum pumping device is connected to the refrigeration system pipeline, and all valves 130 in the refrigeration system pipeline are opened. The vacuum pumping device works to extract the refrigerant in the refrigeration system pipeline to increase the vacuum degree in the refrigeration system pipeline.

[0047] After completing the vacuuming and waiting for the preset time, observe the pressure in the refrigeration system pipeline detected by the pressure detection device 200. If the pressure rises, it means that there is a leak in the refrigeration system pipeline. Through the pressure rise test, it is possible to detect whether the refrigeration system pipeline is leaking, thereby improving the stability of the refrigeration equipment system, reducing the working noise of the refrigeration equipment, and improving the refrigeration efficiency.

[0048] In this optional embodiment, both ends of the first connecting pipe 100 are connected to the first joint 110 and the second joint 120 respectively, the first joint 110 is detachably connected to the refrigeration system pipeline, and the second joint 120 is detachably connected to the vacuum device. The vacuum device is connected to the refrigeration pipeline of the refrigeration equipment through the pressure detection tool, and the vacuum device can extract the refrigerant in the refrigeration system pipeline of the refrigeration equipment through the second joint 120, the first joint 110 and the first connecting pipe to increase the vacuum degree in the refrigeration system pipeline.

[0049] The pressure detection device 200 is connected to the first connecting pipe 100. The two ends of the first connecting pipe 100 are connected to the corresponding refrigeration system pipeline and the vacuum device through the first joint 110 and the second joint 120 respectively. The pressure in the first connecting pipe 100 is the same as the pressure in the refrigeration system pipeline. The pressure detection device 200 can detect the pressure in the first connecting pipe, that is, the pressure detection device 200 can detect the pressure in the part of the refrigeration system pipeline connected to the vacuum device in real time, and can determine the vacuuming effect of the vacuum device on the refrigeration system pipeline according to the pressure, reduce the occurrence of excessive vacuuming of the refrigeration system pipeline by the vacuum device, and improve the vacuuming effect of the vacuum device on the refrigeration system pipeline.

[0050] In this embodiment, when the pressure recovery test is performed on the refrigeration system pipeline of the refrigeration equipment, the first joint 110 is connected to the refrigeration system pipeline, and the second joint 120 is connected to the vacuum pumping device, and the pressure detection device 200 can detect the pressure in the first connecting pipe. Since there are high-pressure areas and low-pressure areas in the refrigeration system, and the inner diameters of the refrigeration system pipelines are different. After the vacuum pumping device completes a vacuum pumping, the vacuum pumping device is turned off, and the refrigerant remaining in the refrigeration system pipeline will flow, and the value detected by the pressure detection device 200 will change within the preset time. After the refrigerant flow is completed, the pressure at each location in the refrigeration system pipeline is the same. If the value detected by the pressure detection device 200 rises at this time, it means that there is a leak in the refrigeration system pipeline.

[0051] By setting the pressure detection tool between the vacuum pumping device and the refrigeration system pipeline, the pressure in the part of the refrigeration system pipeline connected to the vacuum pumping device can be detected, and the pressure value in the part of the refrigeration system pipeline is the minimum pressure value in the entire refrigeration system pipeline pressure value. The vacuum pumping capacity of the vacuum pumping device can be determined through the pressure value in the part of the refrigeration system pipeline, and the minimum pressure value in the refrigeration system pipeline can be detected in real time to reduce the situation where the vacuum pumping device over-vacuums the refrigeration system pipeline, thereby reducing the damage to the moving parts of the compressor caused by too low oil pressure such as lubricating oil in the compressor of the refrigeration system, so as to improve the working stability and reliability of the refrigeration system.

[0052] Optionally, the first joint 110 is connected to the outlet end of a capillary tube of a refrigeration system pipeline.

[0053] In this embodiment, the refrigerant becomes a gaseous refrigerant after flowing through the capillary tube. The first joint 110 is connected to the outlet end of the capillary tube. The vacuum pumping device can extract the gaseous refrigerant from the outlet end of the capillary tube through the pressure detection tooling, thereby reducing the content of liquid refrigerant extracted by the vacuum pumping device and increasing the service life of the vacuum pumping device.

[0054] In one embodiment, the pressure detection device 200 includes a pressure gauge.

[0055] In this embodiment, the pressure gauge can display the pressure value in the first connecting pipe 100, thereby displaying the pressure value in the refrigeration system pipeline, so as to facilitate observation by the operator.

[0056] In another embodiment, the pressure detection device 200 includes a pressure sensor, and the pressure detection tooling also includes a display component, which is communicatively connected to the pressure sensor, and the display component is used to display the pressure value detected by the pressure sensor.

[0057] In this embodiment, the display component is communicatively connected to the pressure sensor, and the pressure value in the first connecting tube 100 detected by the pressure sensor can be transmitted to the display component, and the display component can display the pressure value for easy observation by the operator.

[0058] Furthermore, the pressure detection device 200 also includes a storage device, which is communicatively connected with the pressure sensor and can store the pressure value detected by the pressure sensor.

[0059] Exemplarily, the pressure detection tool further includes a three-way pipe 300 and a second connecting pipe 400, and the first end of the three-way pipe 300 and the second end of the three-way pipe 300 are connected in series to the first connecting pipe 100. The first end of the second connecting pipe 400 is connected to the third end of the three-way pipe 300, and the second end of the second connecting pipe 400 is connected to the pressure detection device 200.

[0060] In this embodiment, the first end and the second end of the three-way pipe 300 are connected in series to the first connecting pipe 100, that is, the three-way pipe 300 is connected to the first connecting pipe 100. The third end of the three-way pipe 300 is connected to the first end of the second connecting pipe 400, and the second end of the second connecting pipe 400 is connected to the pressure detection device 200.

[0061] The second connecting pipe 400 is connected to the first connecting pipe 100 through the tee pipe 300, and the pressure detection device 200 is connected to the first connecting pipe 100 through the second connecting pipe 400 and the tee pipe 300. The pressure in the second connecting pipe 400 is the same as the pressure in the first connecting pipe 100, and the pressure value in the second connecting pipe 400 detected by the pressure detection device 200 is the pressure value in the first connecting pipe 100.

[0062] Alternatively, if Figures 1 to 6 As shown, the second connecting pipe 400 is a curved pipe. Figure 7 and Figure 8 As shown, the second connecting pipe 400 is a straight pipe.

[0063] Optionally, the first connecting pipe 100 and / or the second connecting pipe 400 is a hose.

[0064] Furthermore, if Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the pressure detection tool also includes a valve 130 , which is serially connected to the first connecting pipe 100 , and the valve 130 is located between the second joint 120 and the three-way pipe 300 , and the valve 130 is used to close or open the first connecting pipe 100 .

[0065] In this embodiment, the valve 130 is connected in series to the first connecting pipe 100 , and the valve 130 can close or open the first connecting pipe 100 , thereby disconnecting or connecting the vacuum pumping device with the refrigeration system pipeline.

[0066] The valve 130 is located between the second connector 120 and the three-way pipe 300. When the valve 130 is closed, the pressure value in the refrigeration system pipeline is detected. When the vacuum device is not working, the vacuum device can be disconnected from the second connector 120 and the valve 130 can be closed. In this way, the sealing performance of the first connecting pipe 100 can be improved and the gas exchange between the refrigeration system pipeline and the outside can be reduced. The pressure detection device 200 can also be connected to the refrigeration system pipeline through the first connecting pipe 100, so that the pressure detection device 200 detects the pressure in the refrigeration system pipeline to obtain the pressure change in the refrigeration system pipeline.

[0067] Exemplarily, the refrigeration system pipeline of the refrigeration equipment includes a first mating joint, the vacuum extraction device includes a second mating joint, and the first mating joint can be adaptably connected to the second mating joint.

[0068] The first connector 110 is used for mating connection with a first mating connector, and the second connector 120 is used for mating connection with a second mating connector.

[0069] When the pressure detection tooling is not added, the first mating joint and the second mating joint are adapted to be connected so that the refrigeration system pipeline is connected to the vacuum device. In this embodiment, the first joint 110 is adapted to be connected to the first mating joint of the refrigeration system pipeline, and the second joint 120 is adapted to be connected to the second mating joint of the vacuum device. In this way, without changing the structure of the refrigeration system pipeline and the vacuum device, the pressure detection tooling can be connected to the refrigeration system pipeline and the vacuum device respectively, so as to reduce the difficulty of installing the pressure detection tooling and facilitate operation.

[0070] In this embodiment, the first joint 110 and the second fitting joint can both be connected to the first fitting joint, and the first joint 110 and the second fitting joint are the same type of joints. The second joint 120 and the first fitting joint can both be connected to the second fitting joint, and the second joint 120 and the first fitting joint are the same type of joints.

[0071] Optionally, the first joint 110 includes a main body and a locking assembly, and the main body is provided with a first passage through which the refrigerant can flow.

[0072] The locking assembly includes a limit rod and a connecting shaft, the limit rod is "U" shaped, and both ends of the limit rod are rotatably connected to the main body through the connecting shaft. When the first joint 110 is connected to the first mating joint, the limit rod can be in a locking position connected to the first mating joint and an unlocking position separated from the first mating joint.

[0073] Optionally, the second joint 120 includes a valve body, a valve core and a valve seat. The valve body is provided with a second channel. The valve core is movably arranged in the second channel, used to open or close the second channel, and can adjust the flow rate of the refrigerant in the second channel. The valve seat is arranged in the second channel, and the valve seat is connected to the valve core. When the valve core is in a position to close the second channel, the valve seat and the valve core form a seal together to close the second channel.

[0074] Exemplarily, the first connector 110 includes a first quick connector, the first mating connector includes a first Hansen valve, and the first quick connector is used to connect with the first Hansen valve.

[0075] In this embodiment, the first mating connector includes a first Hansen valve, and the first connector 110 includes a first quick connector adapted to the first Hansen valve, so that the pressure detection tooling can be connected to the refrigeration system pipeline, reducing the difficulty of installation.

[0076] Further, the second connector 120 includes a second Hansen valve, the second mating connector includes a second quick connector, and the second Hansen valve is used to connect with the second quick connector.

[0077] The second mating connector includes a second quick connector, and the second connector 120 includes a first Hansen valve adapted to the second quick connector, so that the pressure detection tooling can be connected to the vacuum pumping device, reducing the difficulty of installation.

[0078] In this embodiment, the first joint 110 and the second matching joint are the same type of joints, and both are quick joints, and the second joint 120 and the first matching joint are the same type of joints, and both are Hansen valves. On the basis of not changing the structure of the refrigeration system pipeline and the vacuum device, the pressure detection tool can be connected to the refrigeration system pipeline and the vacuum device respectively, so as to reduce the difficulty of installing the pressure detection tool and facilitate operation.

[0079] Optionally, the first joint 110 is welded to the first connecting pipe 100 .

[0080] In this embodiment, the first joint 110 is welded to the first connecting tube 100 to increase the connection strength between the first joint 110 and the first connecting tube 100, and can improve the sealing of the connection between the first joint 110 and the first connecting tube 100, reduce the risk of leakage at the connection between the first joint 110 and the first connecting tube 100, and improve the working stability and reliability of the pressure detection tooling.

[0081] Furthermore, the second joint 120 is welded to the second connecting pipe 400 .

[0082] In this embodiment, the second joint 120 is welded to the second connecting tube 400 to increase the connection strength between the second joint 120 and the second connecting tube 400, and can improve the sealing of the connection between the second joint 120 and the second connecting tube 400, reduce the risk of leakage at the connection between the second joint 120 and the second connecting tube 400, and improve the working stability and reliability of the pressure detection tooling.

[0083] Optionally, the first end of the tee pipe 300 and the second end of the tee pipe 300 are respectively welded to the first connecting pipe 100 to increase the connection strength and connection sealing between the tee pipe 300 and the first connecting pipe 100 .

[0084] Optionally, the third end of the tee pipe 300 is welded to the second connecting pipe 400 to increase the connection strength and sealing performance between the tee pipe 300 and the first connecting pipe 100 .

[0085] Exemplarily, the material of the first connecting pipe 100 includes copper material or stainless steel material.

[0086] In this embodiment, the material of the first connecting tube 100 includes copper material or stainless steel material. Further, the material of the first connecting tube 100 can also be copper material or stainless steel material to improve the corrosion resistance of the first connecting tube 100 and increase the service life of the first connecting tube 100.

[0087] Optionally, the material of the second connecting pipe 400 includes copper material or stainless steel material.

[0088] Optionally, the material of the first joint 110 includes copper material or stainless steel material to improve the corrosion resistance of the first joint 110 and increase the service life of the first connecting pipe 100 .

[0089] Optionally, the material of the second joint 120 includes copper material or stainless steel material to improve the corrosion resistance of the second joint 120 and increase the service life of the second connecting pipe 400 .

[0090] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A pressure detection tool, characterized in that: The pressure testing tool is used to test the pressure of the refrigeration system pipeline of the refrigeration equipment. The pressure testing tool includes: a first connecting pipe; A first connector, wherein a first end of the first connector is connected to a first end of a first connecting pipe, and a second end of the first connector is used for detachably connecting to a refrigeration system pipeline; A second joint, a first end of the second joint is connected to the second end of the first connecting pipe, and the second end of the second joint is used to be detachably connected to the vacuum device; The pressure detection device is connected to the first connecting pipe and is used for detecting the pressure in the first connecting pipe.

2. The pressure detection tool according to claim 1, characterized in that: Also includes: A tee pipe, a first end of the tee pipe and a second end of the tee pipe are connected in series to the first connecting pipe; A second connecting pipe, wherein a first end of the second connecting pipe is connected to the third end of the three-way pipe, and a second end of the second connecting pipe is connected to the pressure detection device.

3. The pressure detection tooling according to claim 2, characterized in that: Also includes: The valve is connected in series with the first connecting pipe and is located between the second joint and the three-way pipe. The valve is used to close or open the first connecting pipe.

4. The pressure detection tool according to claim 1, characterized in that: The refrigeration system pipeline of the refrigeration equipment includes a first matching joint, and the vacuum pumping device includes a second matching joint, and the first matching joint can be adapted to be connected with the second matching joint; The first connector is used for fitting and connecting with the first mating connector, and the second connector is used for fitting and connecting with the second mating connector.

5. The pressure detection tooling according to claim 4, characterized in that: The first connector includes a first quick connector, the first mating connector includes a first Hansen valve, and the first quick connector is used to connect with the first Hansen valve.

6. The pressure detection tool according to claim 5, characterized in that: The second connector includes a second Hansen valve, the second mating connector includes a second quick connector, and the second Hansen valve is used to connect with the second quick connector.

7. The pressure detection tool according to any one of claims 1 to 6, characterized in that: The first joint is welded to the first connecting pipe; and / or, The second joint is welded to the second connecting pipe.

8. The pressure detection tool according to any one of claims 1 to 6, characterized in that: The pressure detection device includes a pressure sensor or a pressure gauge.

9. The pressure detection tool according to claim 8, characterized in that: In the case where the pressure detection device includes a pressure sensor, the pressure detection tooling also includes: The display component is connected to the pressure sensor for displaying the pressure value detected by the pressure sensor.

10. The pressure detection tool according to any one of claims 1 to 6, characterized in that: The material of the first connecting pipe includes copper material or stainless steel material; and / or, The material of the first joint includes copper material or stainless steel material; and / or, The material of the second joint includes copper material or stainless steel material.

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