Pressure testing device for air tightness of water pump

Abstract

The utility model belongs to the technical field of water pump quality detection, and particularly relates to a pressure testing device for water pump airtightness, which comprises a cabinet body and a sliding rail seat, the sliding rail seat is arranged at the bottom in the cabinet body, a sliding table is arranged on the sliding rail seat in a sliding manner, a plurality of mounting holes are uniformly formed in the end face of the sliding table along the linear direction, and each mounting hole can be connected with a connector. The sliding table is provided with two connectors, a steel wire rope is connected between the two connectors, a rubber pipe is arranged outside the steel wire rope, a plurality of annular grooves are formed in the outer circle face of each rubber pipe, and detectors are arranged on the portions, in the cabinet body, of the two sides of the sliding rail base. Secondary fixing treatment can be provided outside the water pump, the hexagonal sleeve and the hexagonal hole pipe are matched, the sliding table can be fixed, good stability can be guaranteed when the water pump is subjected to air tightness detection, and the detection precision and the detection safety are effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water pump quality detection, and in particular relates to a pressure testing device for air tightness of a water pump. Background Art

[0002] A water pump is a device used to transport liquids or pressurize liquids. It has been widely used in water supply, mining, metallurgy and other industries. After the water pump is assembled, each water pump needs to be tested for air tightness. The water pump air tightness test uses air as the detection medium, and fills the tested water pump with compressed air of a certain pressure. After maintaining it for a certain period of time, observe whether the air pressure in the water pump changes, thereby judging the air tightness of the water pump. The operation is simple, but the test time is long and the detection efficiency is too low. For this reason, some pressure testing devices have emerged to improve the detection efficiency.

[0003] For example, patent application number CN201921525423.X discloses a test mechanism for the air tightness of a water pump, which includes a test box, a vacuum pump, a nitrogen storage tank, a bracket and a nitrogen detector. The upper part of the test box is a test chamber, and an air inlet joint, an air outlet joint and a power supply assembly are arranged in the test chamber. A first pressure gauge for detecting the air pressure in the test chamber and a button switch for controlling the power on and off of the power supply assembly are arranged outside the test box. The air suction port of the vacuum pump is connected to the test chamber through a pipeline, and the air outlet of the nitrogen storage tank is connected to the air inlet joint through an air supply pipeline. The air outlet joint is connected to one end of an air outlet pipeline, and the other end of the air outlet pipeline is located outside the test chamber. A valve is arranged on the air outlet of the nitrogen storage tank, and the nitrogen detector is arranged on the bracket, and the detection probe of the nitrogen detector is located in the test chamber. The utility model has high detection accuracy.

[0004] The existing technology improves the detection accuracy and efficiency by combining a nitrogen detector with a vacuum pump and the setting of inlet and outlet air joints, but there are still certain deficiencies during use: in order to improve the efficiency of water pump installation and disassembly, some existing pressure detectors will use slide rails or slides to slide the base plate used to install the water pump outward. Although this improves the installation and detection efficiency, the installation stability of the water pump itself is reduced. During the airtightness detection process, the water pump and the slide are prone to vibration due to changes in the internal high-pressure gas, affecting the detection accuracy and detection safety. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a pressure testing device for the air tightness of a water pump.

[0006] The utility model can provide a secondary fixing treatment on the outside of the water pump by setting the rubber tube and the connecting head, so that the slide can slide outward smoothly for easy installation of the water pump. The slide can also be fixed by cooperating with the hexagonal sleeve and the hexagonal hole tube, so that the water pump can ensure good stability when performing air tightness detection, and effectively improves the detection accuracy and detection safety.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressure test device for the air tightness of a water pump, comprising a cabinet, a slide rail seat, a slide rail seat provided at the bottom of the cabinet, a slide table provided on the slide rail seat, a plurality of mounting holes evenly provided along a straight line on the end surface of the slide table, each mounting hole can be connected to a connector, a steel wire rope is connected between two connectors, a rubber tube is provided outside the steel wire rope, a plurality of annular grooves are provided on the outer circumferential surface of each rubber tube, and detectors are provided in the cabinet on both sides of the slide rail seat. The provision of the annular groove enables the rubber tube to better fit the outer surface of the water pump, thereby improving the fixing effect on the water pump.

[0008] Preferably, a plurality of anti-slip strips are arranged outside the mounting hole on the end surface of the slide table. The provision of the anti-slip strips improves the fixing effect between the water pump and the slide table.

[0009] Preferably, a plurality of hexagonal hole tubes are provided at the four corners of the end face of the slide table, a connecting frame is provided on the end face of the slide rail seat above the hexagonal hole tube, a push cylinder is provided on the connecting frame, a push rod is provided in the push cylinder for sliding, one end of the bottom of the push rod extends out of the end face of the push cylinder and is connected to a hexagonal sleeve, and the inner hole of the hexagonal sleeve cooperates with the outer wall of the hexagonal hole tube. The setting of the hexagonal sleeve and the hexagonal hole tube enables the slide table to be effectively fixed after the movement is completed, effectively avoiding the occurrence of the slide table shaking.

[0010] Preferably, a positioning hole is provided on the end surface of the slide rail seat below the hexagonal hole tube, and a positioning rod is connected and provided on the bottom end surface of the hexagonal sleeve above the positioning hole. The arrangement of the positioning hole and the positioning rod effectively improves the fixing effect of the slide table.

[0011] Preferably, each of the annular grooves is provided with a plurality of convex strips, and the provision of the convex strips improves the fixing effect of the rubber tube on the water pump.

[0012] Preferably, two cabinet doors are slidably provided on one end surface of the cabinet body.

[0013] In summary, compared with the prior art, the beneficial effects of this solution are:

[0014] The utility model arranges the slide table, the hexagonal hole tube, the hexagonal sleeve and the positioning rod, so that the slide table can slide smoothly for easy installation of the water pump. When the water pump is tested for air tightness, a good supporting and fixing effect can be provided for the bottom of the water pump, thereby avoiding random shaking during the water pump testing and ensuring the safety of the water pump during testing.

[0015] The utility model can quickly install the water pump on the end surface of the slide through the installation holes, the connecting heads, the wire ropes and the rubber tubes, and can also perform multi-layer secondary fixing treatment on the outside of the water pump, effectively avoiding the shaking of the water pump during the air tightness detection process, and effectively improving the detection accuracy and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is the overall top view of the utility model;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model at AA;

[0019] Figure 4 It is a structural schematic diagram of some parts of the utility model;

[0020] Figure 5 It is a front view of some parts of the utility model;

[0021] Figure 6 It is a top view of some parts of the utility model;

[0022] Figure 7 It is a schematic diagram of the cross-sectional structure of the utility model at BB;

[0023] Figure 8 It is a schematic diagram of the cross-sectional structure of the utility model at CC;

[0024] Fig. 9 It is a schematic diagram of the enlarged structure of D of the utility model; DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention.

[0026] Embodiment 1:

[0027] refer to Figure 1-9A pressure test device for the air tightness of a water pump comprises a cabinet 10 and a slide rail seat 13. The cabinet 10 has a slide rail seat 13 at the bottom thereof, a slide table 14 is slidably arranged on the slide rail seat 13, a plurality of mounting holes 15 are evenly arranged on the end surface of the slide table 14 along a straight line direction, each mounting hole 15 can be connected to a connector 21, a steel wire rope 23 is connected between the two connectors 21, a rubber tube 17 is arranged outside the steel wire rope 23, a plurality of annular grooves 28 are arranged on the outer circumferential surface of each rubber tube 17, and detectors 12 are arranged in the cabinet 10 on both sides of the slide rail seat 13.

[0028] The sizes of the multiple mounting holes 15 arranged on the end surface of the slide 14 can match the mounting holes at the bottom of the water pump, so that the water pump can be fixed. The setting of multiple straight and evenly distributed mounting holes 15 allows water pumps of different sizes to be installed on the slide 14, thereby improving the practical effect. The sliding cooperation between the slide rail seat 13 and the slide 14 allows the slide 14 to slide to the outside of the cabinet 10, eliminating the workload of the staff in lifting the water pump into the cabinet 10, thereby improving the installation efficiency.

[0029] The arrangement of the connector 21 and the wire rope 23 allows the staff to tie multiple wire ropes 23 and the rubber tube 17 to the outside of the water pump when the water pump cannot be installed, and then connect the connectors 21 at both ends to the installation holes 15. In this relationship, the wire rope 23 is made of elastic steel wire, has a certain hardness and can fit to the outside of the water pump, and the rubber tube 17 is made of rubber material to avoid contact damage and ensure that the quality of the water pump is not damaged. The multiple annular grooves 28 on the rubber tube 17 allow the rubber tube 17 to be better embedded in various places on the surface of the water pump, thereby improving the fixing effect of the water pump.

[0030] The detector 12 is a prior art and will not be elaborated in detail herein. After the water pump is installed, the detectors 12 on both sides will perform a pressure test on the water pump.

[0031] refer to Figure 4 A plurality of anti-slip strips 16 are arranged outside the mounting hole 15 on the end surface of the slide table 14 .

[0032] The provision of a plurality of anti-slip strips 16 can improve the fixing effect of the water pump installed on the slide 14 and reduce the shaking of the water pump.

[0033] refer to Figure 4-5 8. A plurality of hexagonal hole tubes 19 are provided at the four corners of the end face of the slide table 14. A connecting frame 18 is provided above the hexagonal hole tubes 19 on the end face of the slide rail seat 13. A pushing cylinder 20 is provided on the connecting frame 18. A pushing rod 26 is slidably provided in the pushing cylinder 20. One end of the bottom of the pushing rod 26 extends out of the end face of the pushing cylinder 20 and is connected to a hexagonal sleeve 24. The inner hole of the hexagonal sleeve 24 cooperates with the outer wall of the hexagonal hole tube 19.

[0034] The multiple hexagonal hole tubes 19 are hollow inside and have a hexagonal outer surface. When the slide 14 moves with the water pump to the inside of the cabinet 10 to prepare for a pressure test, the push cylinder 20 will push the internal push rod 26 to move downward, thereby pushing the hexagonal sleeve 24 on the bottom end face of the push rod 26 to move downward, and the inner hole of the hexagonal sleeve 24 will be inserted into the outside of the hexagonal hole tube 19, thereby fixing the hexagonal hole tube 19 and the slide 14, so that the water pump on the slide 14 will not shake at will during the pressure test.

[0035] refer to Figure 8 A positioning hole 25 is provided on the end surface of the slide rail seat 13 below the hexagonal hole tube 19, and a positioning rod 22 is connected to the bottom end surface of the hexagonal sleeve 24 above the positioning hole 25.

[0036] The positioning hole 25 is coaxial with the middle through hole of the hexagonal hole tube 19. When the hexagonal sleeve 24 is pressed against the outside of the hexagonal hole tube 19, the positioning rod 22 on the bottom end face of the hexagonal sleeve 24 will be inserted into the hexagonal hole tube 19 and the positioning hole 25, thereby improving the fixing effect between the slide rail seat 13 and the slide table 14 and improving the safety during pressure testing.

[0037] refer to Figure 1 Two cabinet doors 11 are slidably arranged on one end surface of the cabinet body 10 .

[0038] The two cabinet doors 11 can be opened outwards so that the water pump can be installed.

[0039] Embodiment 2:

[0040] On the basis of or different from the first embodiment, reference Fig. 9 Each annular groove 28 is provided with a plurality of convex strips 27 .

[0041] A plurality of convex strips 27 are arranged on the annular groove 28, so that when the annular groove 28 is buckled onto the surface of the water pump, the contact friction force can be better improved, thereby improving the fixing effect.

[0042] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0043] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0044] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A pressure test device for air tightness of a water pump, comprising a cabinet (10) and a slide rail seat (13), characterized in that: A slide rail seat (13) is arranged at the bottom of the cabinet (10), a slide platform (14) is arranged on the slide rail seat (13), a plurality of mounting holes (15) are arranged on the end surface of the slide platform (14), each of the mounting holes (15) can be connected to a connector (21), a steel wire rope (23) is connected between two of the connectors (21), a rubber tube (17) is arranged outside the steel wire rope (23), and a plurality of annular grooves (28) are arranged on the outer circumferential surface of each of the rubber tubes (17), and detectors (12) are arranged on both sides of the slide rail seat (13) in the cabinet (10).

2. A water pump air tightness pressure test device according to claim 1, characterized in that: A plurality of anti-slip strips (16) are arranged on the end surface of the slide platform (14).

3. A pressure test device for air tightness of a water pump according to claim 1, characterized in that: A plurality of hexagonal hole tubes (19) are arranged at the four corners of the end face of the slide table (14); a connecting frame (18) is arranged on the slide rail seat (13) above the hexagonal hole tubes (19); a pushing cylinder (20) is arranged on the connecting frame (18); a pushing rod (26) is slidably arranged in the pushing cylinder (20); one end of the bottom of the pushing rod (26) extends out of the end face of the pushing cylinder (20) and is connected to a hexagonal sleeve (24); the inner hole of the hexagonal sleeve (24) cooperates with the outer wall of the hexagonal hole tube (19).

4. A pressure test device for air tightness of a water pump according to claim 3, characterized in that: A positioning hole (25) is provided below the hexagonal hole tube (19) on the end surface of the slide rail seat (13), and a positioning rod (22) is connected to the bottom of the hexagonal sleeve (24) above the positioning hole (25).

5. A water pump air tightness pressure test device according to claim 1, characterized in that: Each of the annular grooves (28) is provided with a plurality of convex strips (27).

6. A pressure test device for air tightness of a water pump according to claim 1, characterized in that: Two cabinet doors (11) are arranged on one end surface of the cabinet body (10).

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