Air conditioner pipeline vibration testing device
By using three-way acceleration sensors and cable ties fixing methods, the problems of complex design and poor versatility of the air-conditioning pipeline vibration testing device in the prior art are solved, and the full-range vibration testing and convenient operation are achieved.
Patent Information
- Application Number
- CN202420676323.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-04-03
AI Technical Summary
The existing air-conditioning pipeline vibration testing device uses three unidirectional acceleration sensors, which are complex in design and additional quality affect the test results, have poor versatility and inconvenient operation, and are especially difficult to fix in densely arranged pipeline areas.
The three-way acceleration sensor is used to combine the transition base and the connection belt to fix the three-way acceleration sensor. The three-way acceleration sensor covers the vibration test of the pipeline vibration X, Y, and Z directions. The cable tie and the connecting buckle achieve rapid fixing and prevent loosening.
It realizes all-round testing of pipeline vibration, simplifies operation, improves the versatility and convenience of testing, and can be conveniently fixed in densely arranged areas, making cable ties simple and economical replacement.
Smart Images
Figure CN222761736U_ABST
Abstract
Description
Technical Field
[0001] The utility model discloses an air-conditioning pipeline vibration test device, which relates to the technical field of air-conditioning pipeline vibration test. Background Art
[0002] The compressor will transfer vibration energy to the air-conditioning pipeline during start-up and shutdown and stable operation. The main vibration sources are the direct vibration transmission of the compressor body and the high-pressure impact of the refrigerant flowing in the pipeline. Especially when the vibration frequency is close to or equal to the natural frequency of the pipeline system, the pipeline will vibrate with high amplitude according to the modal vibration shape. If the pipeline vibration is not tested, long-term large deformation will cause structural fatigue, resulting in refrigerant leakage, and ultimately affecting the use of the air-conditioning outdoor unit.
[0003] In the prior art, three unidirectional acceleration sensors are often used to test pipeline vibration, which has a complex design and the additional mass introduced by the three sensors will affect the test results. At the same time, a clamp-type structure is generally used to fix the acceleration sensor and the pipeline. If there are multiple measuring points, multiple locations and pipelines of various diameters that need to be tested for vibration on site, the tester needs to prepare multiple types of clamps in advance, which has poor versatility and is difficult to test. Moreover, in the compressor area of the air-conditioning outdoor unit, especially the unit unit or small multi-split unit, the pipeline is arranged relatively densely, and there is not enough space to use a screwdriver to tighten the screws of the clamp, which makes the operation inconvenient. Utility Model Content
[0004] The utility model aims at the defects in the above-mentioned background technology and provides an air-conditioning pipeline vibration testing device, which uses a three-axis acceleration sensor and improves its fixing method, is easy to operate and has high versatility.
[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: an air conditioning pipeline vibration test device, including a three-axis acceleration sensor, a transition base and a connecting belt;
[0006] The transition base is arranged between the three-axis acceleration sensor and the air conditioning pipeline, and a transition surface matching the shape of the air conditioning pipeline is arranged on the side of the transition base facing the air conditioning pipeline;
[0007] The connecting belt is arranged around the three-axis acceleration sensor, the transition base and the air-conditioning pipeline, and is used for fastening and fixing the three-axis acceleration sensor and the transition base on the air-conditioning pipeline.
[0008] Furthermore, the connecting belt includes a belt body and a connecting buckle, and the connecting buckle is connected to the upper side of the three-axis acceleration sensor. In a tightened state, the belt body passes through a threading hole provided on the connecting buckle.
[0009] Furthermore, the transition surface is an arc-shaped surface with an arc range of 0.5-3rad, which is used to fit tightly with the air-conditioning pipeline and facilitate the installation of the transition base.
[0010] Furthermore, the belt body is a cable tie, which can be sleeved on the outer wall of the air-conditioning pipeline, and can be manually tightened after passing through the threading hole, and installed in conjunction with the transition surface, so that the present structure is applicable to the fixing of air-conditioning pipelines of all different diameters.
[0011] Furthermore, the connecting buckle and the transition base are made of hard plastic.
[0012] Furthermore, the connecting buckle is connected to the upper side of the three-axis acceleration sensor by glue.
[0013] Furthermore, the transition base is connected to the lower side of the three-axis acceleration sensor by glue.
[0014] Beneficial effects: The utility model changes the structure of the prior art in which three unidirectional acceleration sensors jointly test the pipeline. By installing a three-directional acceleration sensor, it can cover the vibration test of the pipeline in the three directions of X, Y, and Z. Secondly, by using a cable tie in conjunction with a connecting buckle, the locking and anti-retraction functions of the cable tie itself facilitate the rapid fixation of the three-directional acceleration sensor and prevent the cable tie from falling off. The connecting buckle can prevent the cable tie from loosening and being difficult to position due to the excessive smoothness of the top surface of the sensor. When multiple measuring points are required for mobile testing, the cable tie can be cut or disassembled at any time to move the test device. Moreover, the cable tie is simple and convenient to replace, and the economy is good. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the installation structure of the utility model;
[0016] Figure 2 It is a side schematic diagram of the utility model;
[0017] Figure 3 It is a schematic diagram of the prior art structure. DETAILED DESCRIPTION
[0018] The following is a further detailed description of the implementation of the technical solution in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.
[0019] like Figure 1~2An embodiment shown in the figure provides an air-conditioning pipeline vibration test device, comprising a three-axis acceleration sensor 1, a transition base 3 and a connecting belt 4; the transition base 3 is arranged between the three-axis acceleration sensor 1 and the air-conditioning pipeline 5, and the side of the transition base 3 facing the air-conditioning pipeline 5 is provided with a transition surface adapted to the shape of the air-conditioning pipeline 5; the connecting belt 4 is arranged around the three-axis acceleration sensor 1, the transition base 3 and the air-conditioning pipeline 5, and is used to fasten and fix the three-axis acceleration sensor 1 and the transition base 3 on the air-conditioning pipeline; the three-axis acceleration sensor 1 is connected to an external measuring instrument through a sensor signal connector 6 for communication, and a side of the transition base 3 away from the three-axis acceleration sensor 1 can be designed with an arc surface, and its arc range is 0.5-3rad. Because the different positions of different models of air conditioners, intake and exhaust pipes, etc. result in different outer diameters of air-conditioning copper pipes, the arc surface diameter can be as large as possible, and the fixation of the structure of this embodiment can be completed by bundling with cable ties.
[0020] The connecting belt 4 includes a belt body and a connecting buckle 2, a threading hole is provided in the middle of the connecting buckle 2, the upper part of the belt body passes through the threading hole, and the inner diameter of the threading hole is within 4 mm; the belt body is a cable tie, and the cable tie is an ordinary slender small-sized cable tie; in the tightened state, the grip belt passes through the threading hole set on the connecting buckle, and the cable tie is locked by its own lock buckle, and the lower part of the cable tie and the arc-shaped surface of the transition base 3 form an installation port for sleeve connection of the air-conditioning pipeline.
[0021] The connecting buckle 2 and the transition base 3 are made of hard plastic.
[0022] The connecting buckle 2 is connected to the upper side of the three-axis acceleration sensor 1 by glue, and the transition base 3 is connected to the lower side of the three-axis acceleration sensor 1 by glue; the glue connection is simple and convenient, and has a good fixing effect.
[0023] In this embodiment, the connecting buckle 2 is glued to the Z-direction top surface of the three-axis acceleration sensor 1, and the transition base 3 is glued to the Z-direction bottom surface of the three-axis acceleration sensor. The arc surface of the transition base 3 is in contact with the copper tube 5. The cable tie passes through the threading hole of the connecting buckle 2 to fix the sensor 1 and the transition base 3 on the copper tube 5 to form a fixation.
[0024] The utility model changes Figure 3In the prior art shown, three unidirectional acceleration sensors are used to jointly test the structure of the pipeline. By installing a three-dimensional acceleration sensor, the vibration test of the pipeline in the three directions of X, Y, and Z can be covered; secondly, the connection and fixing method of the sensor is changed, and the cable tie is used in conjunction with the connecting buckle. The locking and anti-retraction functions of the cable tie itself facilitate the rapid fixation of the three-dimensional acceleration sensor and prevent the cable tie from falling off. The connecting buckle can prevent the cable tie from loosening and being difficult to position due to the excessive smoothness of the top surface of the sensor; and when multiple measuring points are required for mobile testing, the cable tie can be cut or disassembled at any time to move the test device, and the cable tie is simple and convenient to replace, with good economy.
[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. An air conditioning pipeline vibration test device, characterized in that: It comprises a three-dimensional acceleration sensor (1), a transition base (3) and a connecting belt (4); The transition base (3) is arranged between the three-dimensional acceleration sensor (1) and the air conditioning pipeline (5); a transition surface matching the outer shape of the air conditioning pipeline (5) is provided on a side of the transition base (3) facing the air conditioning pipeline (5); The connecting belt (4) is arranged around the three-dimensional acceleration sensor (1), the transition base (3) and the air conditioning pipeline (5), and is used to fasten and fix the three-dimensional acceleration sensor (1) and the transition base (3) to the air conditioning pipeline (5).
2. The air conditioning pipeline vibration testing device according to claim 1, characterized in that: The connecting belt (4) comprises a belt body and a connecting buckle (2); the connecting buckle (2) is connected to the upper side of the three-dimensional acceleration sensor (1); in a tightened state, the belt body passes through a threading hole provided on the connecting buckle (2).
3. The air conditioning pipeline vibration testing device according to claim 1, characterized in that: The transition surface is an arc-shaped surface, and the arc range is 0.5-3rad.
4. The air conditioning pipeline vibration testing device according to claim 2, characterized in that: The belt body is a cable tie.
5. The air conditioning pipeline vibration testing device according to claim 2, characterized in that: The connecting buckle (2) and the transition base (3) are made of hard plastic.
6. The air conditioning pipeline vibration testing device according to claim 2, characterized in that: The connecting buckle (2) is connected to the upper side of the three-dimensional acceleration sensor (1) by means of glue.
7. The air conditioning pipeline vibration testing device according to claim 1, characterized in that: The transition base (3) is connected to the lower side of the three-dimensional acceleration sensor (1) by means of glue.