Electric pump air tightness experiment device capable of performing comparative experiment

Abstract

The utility model discloses an electric pump air tightness experiment device capable of performing comparative experiments, which comprises a water storage device, a circulating device is arranged in the middle of the water storage device, and a fixing device is arranged on one side of the circulating device. The water storage device comprises two symmetrically arranged water storage boxes, and the bottoms of the two water storage boxes are respectively provided with a contrast pump and a to-be-detected pump; the circulating device comprises a liquid storage tank; according to the electric pump air tightness experiment device capable of performing the contrast experiment, the contrast pump is arranged to compare the exudation amount of the colored solution, so that the detection of the electric pump which does not have strict requirements on the sealing precision is realized, the detection pertinence of the device is improved, the detection is performed according to the scene which is more in line with the actual use condition, and the detection efficiency is improved. The detection reliability of the device is improved; through the design that the lead screw drives the sealing head and the clamping frame to move at the same time, the to-be-detected pump can be conveniently and rapidly installed, the time needed for detection preparation is shortened, and continuous detection convenience is improved.

Description

Technical Field

[0001] The utility model belongs to the field of air tightness detection of electric pumps, in particular to an electric pump air tightness experimental device capable of conducting comparative experiments. Background Art

[0002] An electric pump is a device driven by electricity and used to transport liquids or gases from one place to another. It is widely used in industries, agriculture, construction and other fields, providing convenience for fluid transportation and processing. The development of electric pumps has promoted industrial automation, agricultural modernization and urbanization, improved production efficiency and improved people's living environment. With the continuous advancement of science and technology, the performance and efficiency of electric pumps will be further improved, making greater contributions to the sustainable development of human society.

[0003] Electric pumps need to be tested for air tightness before leaving the factory to avoid excessive leakage. Due to cost and processing errors, electric pumps cannot be completely airtight, and leakage within a controllable range is a normal phenomenon. Existing detection methods can only determine whether there is leakage, but cannot detect whether the degree of leakage is within the standard range, and the detection is less targeted. Utility Model Content

[0004] The utility model aims to provide an electric pump air tightness test device capable of conducting comparative experiments, so as to solve the problems existing in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An electric pump air tightness test device capable of comparative experiments comprises a water storage device, a circulation device is arranged in the middle of the water storage device, and a fixing device is arranged on one side of the circulation device; the water storage device comprises two symmetrically arranged water storage boxes, and a control pump and a pump to be tested are arranged at the bottom of the two water storage boxes respectively; the circulation device comprises a liquid storage tank, two first conduits are symmetrically arranged on one side of the liquid storage tank, a connecting flange is arranged at the end of the first conduit, two second conduits are symmetrically arranged on the side of the liquid storage tank away from the first conduit, a bellows is arranged at the end of the second conduit, and a sealing head is arranged at the end of the bellows; the fixing device comprises a bracket, a screw is rotatably arranged on the top of the bracket, the screw thread is a positive and negative thread, a motor is installed on the rear end of the screw, two moving frames are symmetrically arranged on the screw, a fixing frame is fixedly arranged on the top of the moving frame, and a clamping frame is fixedly arranged on the inner side of the moving frame.

[0007] Furthermore: the control pump is connected to the water storage box by bolts.

[0008] Furthermore: the bracket and the water storage box are welded together.

[0009] Furthermore, the fixing frame is in a circular ring shape, and the sealing head is connected to the fixing frame with bolts.

[0010] Furthermore: the lead screw is connected to the bracket bearing, and the motor is keyed to the lead screw.

[0011] Furthermore: the clamping frame is in the shape of a clamp.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. During the test, the control pump and the pump to be tested are turned on at the same time. The control pump extracts the colored solution in the liquid storage tank through the first conduit and returns it to the liquid storage tank to form a colored solution flow cycle. Similarly, the pump to be tested also forms a colored solution circulation through the second conduit and the bellows. Due to various processing errors in the production of electric pumps or due to cost control and other reasons, perfect sealing cannot be guaranteed. Therefore, part of the colored solution seeps out of the control pump and the pump to be tested during operation. The qualified degree of the pump to be tested is judged by observing the amount of colored solution in the water in the water storage box. The pump to be tested is qualified if the seepage amount is less than that of the control pump. By setting the control pump to compare the seepage amount of the colored solution, the electric pump with no strict sealing accuracy requirements can be tested, the device detection is targeted, and the detection is carried out in accordance with the scenario that is more in line with the actual use situation, so as to improve the reliability of the device detection;

[0014] 2. The bracket supports the motor to drive the lead screw to rotate, driving the two moving frames to move synchronously toward the center. During this process, the fixed frame drives the two sealing heads to be inserted into the input and output ends of the pump to be tested respectively, completing the connection between the second conduit and the pump to be tested. At the same time, the clamping frame clamps and fixes the bottom of the pump to be tested from the front and back directions to prevent it from shaking during operation. The design of driving the sealing head and the clamping frame to move simultaneously by the lead screw facilitates the rapid installation of the pump to be tested, shortens the time required for test preparation, and improves the convenience of continuous testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a structural schematic diagram of an electric pump air tightness test device for comparative experiments described in the utility model;

[0017] Figure 2 It is a structural schematic diagram of a water storage device of an electric pump air tightness test device for comparative experiments described in the utility model;

[0018] Figure 3 It is a structural schematic diagram of a circulation device of an electric pump air tightness test device for comparative experiments described in the utility model;

[0019] Figure 4 It is a structural schematic diagram of a fixing device of an electric pump air tightness test device capable of conducting comparative experiments described in the utility model.

[0020] In the accompanying drawings: 1. water storage device; 101. water storage box; 102. control pump; 103. pump to be tested; 2. circulation device; 201. liquid storage tank; 202. first conduit; 203. connecting flange; 204. second conduit; 205. bellows; 206. sealing head; 3. fixing device; 301. bracket; 302. screw; 303. motor; 304. movable frame; 305. fixed frame; 306. clamping frame. DETAILED DESCRIPTION

[0021] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 4 An electric pump air tightness test device for comparative experiments includes a water storage device 1, a circulation device 2 is arranged in the middle of the water storage device 1, and a fixing device 3 is arranged on one side of the circulation device 2.

[0025] In this embodiment: the water storage device 1 includes two symmetrically arranged water storage boxes 101, and the bottom of the two water storage boxes 101 is respectively provided with a control pump 102 and a pump to be tested 103, the control pump 102 is bolted to the water storage box 101, and the two water storage boxes 101 are respectively filled with water. When testing, the pump to be tested 103 is first placed at the bottom of the right water storage box 101, and part of the colored solution seeps out when the control pump 102 and the pump to be tested 103 are running. The qualification degree of the pump to be tested 103 is judged by observing the amount of colored solution in the water in the water storage box 101. The pump to be tested 103 is qualified if the amount of seepage is less than that of the control pump 102. By setting the control pump 102 to compare the amount of seepage of the colored solution, the electric pump with no strict sealing accuracy requirements can be tested, the device detection is targeted, and the detection is performed according to a scenario that is more in line with the actual use situation, thereby improving the reliability of the device detection;

[0026] In this embodiment: the circulation device 2 includes a liquid storage tank 201, two first conduits 202 are symmetrically arranged on one side of the liquid storage tank 201, and a connecting flange 203 is arranged at the end of the first conduit 202. Two second conduits 204 are symmetrically arranged on the side of the liquid storage tank 201 away from the first conduit 202, and a bellows 205 is arranged at the end of the second conduit 204. A sealing head 206 is arranged at the end of the bellows 205. The colored solution is stored in the liquid storage tank 201, and the two connecting flanges 203 are respectively connected to the input and output ends of the control pump 102. During the detection, the control pump 102 and the pump 103 to be detected are turned on at the same time. The control pump 102 extracts the colored solution in the liquid storage tank 201 through the first conduit 202 and sends it back to the liquid storage tank 201, forming a colored solution flow circulation. Similarly, the pump 103 to be detected also forms a colored solution circulation through the second conduit 204 and the bellows 205;

[0027] In this embodiment, the fixing device 3 includes a bracket 301, a screw 302 is rotatably arranged on the top of the bracket 301, the screw 302 thread is a positive and negative thread, a motor 303 is installed at the rear end of the screw 302, two mobile frames 304 are symmetrically arranged on the screw 302, a fixed frame 305 is fixedly arranged on the top of the mobile frame 304, and a clamping frame 306 is fixedly arranged on the inner side of the mobile frame 304, the bracket 301 is welded with the water storage box 101, the fixed frame 305 is annular, the sealing head 206 is bolted to the fixed frame 305, the screw 302 is connected to the bracket 301 bearing, the motor 303 is connected to the screw 302 with a flat key, and the clamping frame 306 is in the shape of a clamp, and the bracket 301 supports the motor 303 to drive the lead screw 302 to rotate, driving the two moving frames 304 to move synchronously toward the center. During this process, the fixed frame 305 drives the two sealing heads 206 to be inserted into the input and output ends of the pump 103 to be detected, respectively, to complete the connection between the second conduit 204 and the pump 103 to be detected, and at the same time, the clamping frame 306 clamps and fixes the bottom of the pump 103 to be detected from the front and back directions to prevent it from shaking during operation. The design of driving the sealing head 206 and the clamping frame 306 to move simultaneously by the lead screw 302 facilitates the rapid completion of the installation of the pump 103 to be detected, shortens the time required for detection preparation, and improves the convenience of continuous detection.

[0028] Working principle: two water storage boxes 101 are filled with water respectively, and the colored solution is stored in the liquid storage tank 201. Two connecting flanges 203 are respectively connected to the input and output ends of the control pump 102. When testing, the pump 103 to be tested is first placed at the bottom of the right water storage box 101. The bracket 301 supports the motor 303 to drive the lead screw 302 to rotate, driving the two mobile frames 304 to move synchronously to the center. During this process, the fixed frame 305 drives the two sealing heads 206 to be inserted into the input and output ends of the pump 103 to be tested respectively, completing the connection between the second conduit 204 and the pump 103 to be tested. At the same time, the clamping frame 306 clamps and fixes the bottom of the pump 103 to be tested from the front and back directions to prevent it from shaking during operation. The design of driving the sealing head 206 and the clamping frame 306 to move simultaneously by the lead screw 302 facilitates the rapid installation of the pump 103 to be tested, shortens the time required for test preparation, and improves the convenience of continuous testing. When testing, the control pump 102 The control pump 102 is started at the same time as the pump 103 to be tested. The control pump 102 extracts the colored solution in the liquid storage tank 201 through the first conduit 204 and returns it to the liquid storage tank 201, forming a colored solution flow cycle. Similarly, the pump 103 to be tested also forms a colored solution cycle through the second conduit 204 and the bellows 205. Since there are various processing errors in the production of electric pumps, or due to reasons such as cost control, perfect sealing cannot be guaranteed. Therefore, part of the colored solution seeps out of the control pump 102 and the pump 103 to be tested during operation. The qualification of the pump 103 to be tested is judged by observing the amount of colored solution in the water in the water storage box 101. If the leakage amount is less than that of the control pump 102, it is a qualified product. By setting the control pump 102 to compare the leakage amount of the colored solution, the detection of electric pumps with less strict sealing accuracy requirements is realized, the pertinence of the device detection is improved, and the detection is performed according to a scenario that is more in line with the actual use situation, thereby improving the reliability of the device detection.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric pump air tightness test device for comparative experiments, characterized in that: It comprises a water storage device (1), a circulation device (2) is arranged in the middle of the water storage device (1), and a fixing device (3) is arranged on one side of the circulation device (2); The water storage device (1) comprises two symmetrically arranged water storage boxes (101), and a control pump (102) and a pump to be tested (103) are respectively arranged at the bottom of the two water storage boxes (101); The circulation device (2) comprises a liquid storage tank (201), two first conduits (202) are symmetrically arranged on one side of the liquid storage tank (201), a connecting flange (203) is arranged at the end of the first conduit (202), two second conduits (204) are symmetrically arranged on the side of the liquid storage tank (201) away from the first conduit (202), a bellows (205) is arranged at the end of the second conduit (204), and a sealing head (206) is arranged at the end of the bellows (205); The fixing device (3) comprises a bracket (301), a lead screw (302) is rotatably arranged on the top of the bracket (301), the lead screw (302) has a forward and reverse thread, a motor (303) is installed at the rear end of the lead screw (302), two movable frames (304) are symmetrically arranged on the lead screw (302), a fixed frame (305) is fixedly arranged on the top of the movable frame (304), and a clamping frame (306) is fixedly arranged on the inner side of the movable frame (304).

2. The electric pump air tightness test device for comparative experiments according to claim 1 is characterized in that: The control pump (102) is bolted to the water storage box (101).

3. The electric pump air tightness test device for comparative experiments according to claim 1 is characterized in that: The bracket (301) and the water storage box (101) are welded together.

4. The electric pump air tightness test device for comparative experiments according to claim 1, characterized in that: The fixing frame (305) is in the shape of a circular ring, and the sealing head (206) is connected to the fixing frame (305) by bolts.

5. The electric pump air tightness test device capable of comparative experiments according to claim 1, characterized in that: The lead screw (302) is connected to the bearing of the bracket (301), and the motor (303) is connected to the lead screw (302) via a parallel key.

6. The electric pump air tightness test device capable of comparative experiments according to claim 1, characterized in that: The clamping frame (306) is in the shape of a clamp.

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