Automatic air tightness testing device for pump body

Abstract

The invention relates to the technical field of pump body air tightness testing, and discloses a pump body automatic air tightness testing device which comprises a supporting frame, a mounting plate, a guide mechanism, a lifting basket, a testing pump body, a testing lifting mechanism and a sealing mechanism, a water tank is fixedly connected to the inner side wall of the supporting frame, and a vertical plate is fixedly connected to the rear side face of the supporting frame; the mounting plate is fixedly connected to the front side surface of the upper end of the vertical plate, the guide mechanism is mounted on the upper surface of the top end of the vertical plate, the basket, the test lifting mechanism and the sealing mechanism are mounted on the front side surface of the mounting plate, and the test pump body is arranged in the basket; through the cooperation of the above structure, the convenience of the air tightness test of the test pump body can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of pump body airtightness testing, and in particular relates to an automatic pump body airtightness testing device. Background Art

[0002] The air tightness test of the pump body can detect whether there is air leakage in the pump body and its components to ensure the sealing performance of the pump body; the sealing performance of the pump body directly affects its working performance and safety. If there is a leak, it may cause a drop in fluid pressure, reduced efficiency, and even cause a safety accident. Therefore, air tightness testing is a key step to ensure the efficient and safe operation of the pump. Moreover, the air tightness test of the pump body can predict in advance whether there will be oil leakage after the pump body is assembled, so as to detect product abnormalities early. At present, the main method is to manually insert a quick plug into the refueling port after the pump body is assembled, input high-pressure gas, and then put it into water to observe the bubbles and whether there is any leakage. This process also requires manual clamping, which is more troublesome to operate.

[0003] For this purpose, we propose an automatic airtightness testing device for pump body. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic airtightness testing device for a pump body in order to improve the convenience of performing airtightness testing on a test pump body.

[0005] The technical solution adopted by the present invention is as follows: An automatic airtightness test device for a pump body, comprising a support frame, a mounting plate, a guide mechanism, a basket, a test pump body, a test lifting mechanism and a sealing mechanism, wherein the inner side wall of the support frame is fixedly connected to a water tank, the rear side surface of the support frame is fixedly connected to a vertical plate, the mounting plate is fixedly connected to the upper front side surface of the vertical plate, the guide mechanism is installed on the top upper surface of the vertical plate, the basket, the test lifting mechanism and the sealing mechanism are installed on the front side surface of the mounting plate, and the test pump body is arranged inside the basket; The test lifting mechanism includes a mounting seat, the mounting seat is fixedly connected to the front side of the mounting plate, the two side surfaces of the mounting seat are fixedly connected to the second cylinder, the lower surface of the second cylinder is installed with the second piston rod, the lower surface of the second piston rod is fixedly connected to the top air pipe joint, and the lower surface of the top air pipe joint is fixedly connected to the pump air pipe joint; The lifting basket is fixedly connected to the front side of the mounting plate below the test lifting mechanism, the inner bottom surface of the lifting basket is fixedly connected to a limit plate, the left inner wall of the lifting basket is fixedly connected to a groove plate, the lower surface of the test pump body abuts against the upper surface of the limit plate, the left side surface of the test pump body abuts against the right side surface of the groove plate, and the refueling hole of the test pump body is located directly below the air outlet of the pump air pipe joint.

[0006] In a preferred embodiment of the invention, the guide mechanism includes a concave slide rail and a cylinder 1, the concave slide rail and the cylinder 1 are fixedly connected to the top upper surface of the vertical plate, a piston rod 1 is installed at the output end of the cylinder 1, and the end of the piston rod 1 away from the cylinder 1 is fixedly connected to a connecting plate.

[0007] In a preferred embodiment of the invention, a T-shaped slide plate is fixedly connected to the outer surface of the connecting plate, and a lower surface of the T-shaped slide plate is slidably connected to the inner surface of the concave slide rail.

[0008] In a preferred embodiment of the invention, a self-locking universal wheel is installed on the lower surface of the support frame.

[0009] In a preferred embodiment of the invention, a drain pipe is installed on the lower surface of the water tank, and a valve is provided on the outer surface of the drain pipe.

[0010] In a preferred embodiment of the invention, the sealing mechanism includes an inclined plate, which is fixedly connected to the front side of the mounting plate, and two cylinders three are fixedly connected to the upper surface of the inclined plate. A piston rod three is installed at the output end of the cylinder three, and a rubber plug is fixedly connected to the end of the piston rod three away from the cylinder three.

[0011] In a preferred embodiment of the invention, outer surfaces of the two rubber stoppers respectively abut against inner side walls of the air inlet and the air outlet of the test pump body.

[0012] In a preferred embodiment of the invention, the rubber stopper is conical in shape.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In the present invention, when the air tightness test of the test pump body is performed, the test pump body is first placed on the limit plate, and then the sealing mechanism is used to block the air inlet and exhaust port of the test pump body and the left end of the test pump body is abutted against the groove plate, and then the top air pipe joint is connected to the high-pressure gas delivery pipeline, and then the cylinder 2 is started to make the piston rod 2 drive the top air pipe joint and the pump air pipe joint to move downward until the pump air pipe joint is connected to the refueling hole on the test pump body, and the test pump body is compressed so that the high-pressure gas can be input into the test pump body from the top air pipe joint and the pump air pipe joint, and then the guide mechanism can be used to drive the mounting plate to move downward, so as to drive the test pump body that is fixed and fed with high-pressure gas to enter the water body inside the water tank for a period of time. In this process, when bubbles are generated in the water body inside the water tank, it proves that the air tightness is not good. If no bubbles are generated in the water body inside the water tank, it proves that the air tightness is good. The cooperation of the above structure can improve the convenience of air tightness testing of the test pump body.

[0014] 2. In the present invention, when the test pump body fixed and ventilated on the carrying basket is placed in the water inside the water tank, the cylinder can be started to make the piston rod drive the connecting plate to move downward. At this time, the connecting plate will drive the T-shaped slide plate to slide downward along the concave slide rail, and then drive the mounting plate to move downward, thereby driving the test pump body on the carrying basket to enter the water inside the water tank for air tightness test, without the need for manual placement; through the cooperation of the above structure, the convenience of air tightness test on the test pump body can be improved.

[0015] 3. In the present invention, when it is necessary to seal and block the exhaust port and the air inlet of the test pump body, the two cylinders three can be started to make the piston rod three drive the rubber plug to move downward, so that the two rubber plugs can respectively enter the exhaust port and the air inlet of the test pump body for sealing, so as not to affect the subsequent air tightness test. The cooperation of the above structure can improve the convenience of the air tightness test of the test pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front perspective view of the present invention; Figure 2 is a top perspective view of the present invention; Figure 3 is a side perspective view of the present invention; Figure 4 It is a bottom-up stereogram of the present invention.

[0017] Explanation of the reference numerals: 1-support frame; 2-mounting plate; 3-guide mechanism; 4-lifting basket; 5-test pump body; 6-test lifting mechanism; 7-sealing mechanism; 11-water tank; 12-self-locking universal wheel; 13-drain pipe; 14-vertical plate; 31-concave slide rail; 32-cylinder one; 33-piston rod one; 34-connecting plate; 35-T-shaped slide plate; 41-groove plate; 42-limiting plate; 61-mounting seat; 62-cylinder two; 63-piston rod two; 64-top air pipe joint; 65-pump air pipe joint; 71-inclined plate; 72-cylinder three; 73-piston rod three; 74-rubber plug. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] The following will be combined Figure 1-Figure 4An automatic airtightness testing device for a pump body according to an embodiment of the present invention is described in detail. Example

[0020] Reference Figure 1-Figure 4 A pump body automatic airtightness test device comprises a support frame 1, a mounting plate 2, a guide mechanism 3, a basket 4, a test pump body 5, a test lifting mechanism 6 and a sealing mechanism 7. The inner side wall of the support frame 1 is fixedly connected with a water tank 11, the rear side of the support frame 1 is fixedly connected with a vertical plate 14, the mounting plate 2 is fixedly connected to the upper front side of the vertical plate 14, the guide mechanism 3 is installed on the top upper surface of the vertical plate 14, the basket 4, the test lifting mechanism 6 and the sealing mechanism 7 are installed on the front side of the mounting plate 2, and the test pump body 5 is arranged on the basket 4. the interior; the lifting basket 4 is fixedly connected to the front side of the mounting plate 2 below the test lifting mechanism 6, the inner bottom surface of the lifting basket 4 is fixedly connected to the limiting plate 42, the left inner wall of the lifting basket 4 is fixedly connected to the groove plate 41, and the lower surface of the test pump body 5 abuts against the upper surface of the limiting plate 42; specifically, when the air tightness test of the test pump body 5 is performed, the test pump body 5 is first placed on the limiting plate 42, and then the sealing mechanism 7 is used to block the air inlet and exhaust port of the test pump body 5 and make the left end of the test pump body 5 abut against the groove plate 41.

[0021] Reference Figure 1-Figure 4 The test lifting mechanism 6 includes a mounting seat 61, which is fixedly connected to the front side of the mounting plate 2, and the two side surfaces of the mounting seat 61 are fixedly connected to the cylinder 2 62, and the lower surface of the cylinder 2 62 is installed with a piston rod 2 63, and the lower surface of the piston rod 2 63 is fixedly connected to a top air pipe joint 64, and the lower surface of the top air pipe joint 64 is fixedly connected to a pump air pipe joint 65; the left side of the test pump body 5 is against the right side of the groove plate 41, and the refueling hole of the test pump body 5 is located directly below the air outlet of the pump air pipe joint 65; specifically, the top air pipe joint 64 is connected to the high-pressure gas transmission pipeline, and then the cylinder 2 62 is started to make the piston rod 2 63 drive the top air pipe joint 64 and the pump air pipe joint 6 5 moves downward until the pump air pipe joint 65 is connected with the refueling hole on the test pump body 5, and the test pump body 5 is compressed, so that the high-pressure gas can be input into the test pump body 5 from the top air pipe joint 64 and the pump air pipe joint 65. Then, the guide mechanism 3 can be used to drive the mounting plate 2 to move downward, so as to drive the fixed test pump body 5 into which the high-pressure gas is introduced into the water body inside the water tank 11 for a period of time. During this process, when bubbles are generated in the water body inside the water tank 11, it proves that the air tightness is not good. If no bubbles are generated in the water body inside the water tank 11, it proves that the air tightness is good. The cooperation of the above structure can improve the convenience of air tightness test on the test pump body 5.

[0022] Reference Figure 1-Figure 4The sealing mechanism 7 includes an inclined plate 71, which is fixedly connected to the front side of the mounting plate 2. The upper surface of the inclined plate 71 is fixedly connected to two cylinders 3 72. A piston rod 3 73 is installed at the output end of the cylinder 3 72. The end of the piston rod 3 73 away from the cylinder 3 72 is fixedly connected to a rubber plug 74. The outer surfaces of the two rubber plugs 74 are respectively against the inner side walls of the air inlet and the air outlet of the test pump body 5, and the shape of the rubber plug 74 is conical. Specifically, when it is necessary to seal and block the exhaust port and the air inlet of the test pump body 5, the two cylinders 3 72 can be started to make the piston rod 3 73 drive the rubber plug 74 to move downward, so that the two rubber plugs 74 can respectively enter the exhaust port and the air inlet of the test pump body 5 for sealing, so as not to affect the subsequent air tightness test. Through the cooperation of the above structure, the convenience of air tightness test on the test pump body 5 can be improved.

[0023] Reference Figure 1-Figure 4 The guide mechanism 3 includes a concave slide rail 31 and a cylinder 32, the concave slide rail 31 and the cylinder 32 are fixedly connected to the top upper surface of the vertical plate 14, and a piston rod 33 is installed at the output end of the cylinder 32, and the end of the piston rod 33 away from the cylinder 32 is fixedly connected to a connecting plate 34, and the outer surface of the connecting plate 34 is fixedly connected to a T-shaped slide plate 35, and the lower surface of the T-shaped slide plate 35 is slidably connected to the inner surface of the concave slide rail 31; specifically, when the test pump body 5 fixed and ventilated on the basket 4 is placed in the water body inside the water tank 11, the cylinder 32 can be started to make the piston rod 33 drive the connecting plate 34 to move downward, and at this time, the connecting plate 34 will drive the T-shaped slide plate 35 to slide downward along the concave slide rail 31, and then drive the mounting plate 2 to move downward, thereby driving the test pump body 5 on the basket 4 to enter the water inside the water tank 11 for air tightness testing, without the need for manual placement; through the cooperation of the above structure, the convenience of air tightness testing of the test pump body 5 can be improved.

[0024] Reference Figure 1-Figure 4 A self-locking universal wheel 12 is installed on the lower surface of the support frame 1, a drain pipe 13 is installed on the lower surface of the water tank 11, and a valve is provided on the outer surface of the drain pipe 13; specifically, the self-locking universal wheel 12 can make the entire device move on the ground; and when the water body for testing inside the water tank 11 needs to be replaced, the valve on the drain pipe 13 can be opened to let it flow out, and then new test water can be added to the water tank 11.

[0025] The implementation principle of an embodiment of an automatic airtightness test device for a pump body of the present application is as follows: When using the device, first connect the external power supply. When performing an air tightness test on the test pump body 5, first place the test pump body 5 on the limit plate 42, and then start the two cylinders three 72 to make the piston rod three 73 drive the rubber plug 74 to move downward, so that the two rubber plugs 74 can respectively enter the exhaust port and the air inlet of the test pump body 5 for sealing, so as not to affect the subsequent air tightness test.

[0026] When the air inlet and exhaust port of the test pump body 5 are blocked, the left end of the test pump body 5 will also be against the groove plate 41, and then the top air pipe joint 64 will be connected to the high-pressure gas delivery pipeline, and then the cylinder 2 62 will be started to make the piston rod 2 63 drive the top air pipe joint 64 and the pump air pipe joint 65 to move downward until the pump air pipe joint 65 is connected to the refueling hole on the test pump body 5, and the test pump body 5 will be compressed so that the high-pressure gas can be input into the inside of the test pump body 5 from the top air pipe joint 64 and the pump air pipe joint 65, and then the cylinder 1 32 can be started to make the piston rod 1 33 drive the connecting plate 34 to move downward. The connecting plate 34 will drive the T-shaped slide plate 35 to slide downward along the concave slide rail 31, and then drive the mounting plate 2 to move downward, thereby driving the test pump body 5 on the basket 4 to enter the water inside the water tank 11 for an air tightness test, without the need for manual insertion, so as to drive the test pump body 5 that is fixed and filled with high-pressure gas to enter the water inside the water tank 11 for a period of time. During this process, when bubbles are generated in the water inside the water tank 11, it proves that the air tightness is not good. If no bubbles are generated in the water inside the water tank 11, it proves that the air tightness is good. The cooperation of the above structure can improve the convenience of air tightness testing of the test pump body 5.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pump body automatic airtightness test device, comprising a support frame (1), a mounting plate (2), a guide mechanism (3), a basket (4), a test pump body (5), a test lifting mechanism (6) and a sealing mechanism (7), characterized in that: The inner side wall of the support frame (1) is fixedly connected to a water tank (11), the rear side of the support frame (1) is fixedly connected to a vertical plate (14), the mounting plate (2) is fixedly connected to the upper front side of the vertical plate (14), the guide mechanism (3) is mounted on the top upper surface of the vertical plate (14), the basket (4), the test lifting mechanism (6) and the sealing mechanism (7) are mounted on the front side of the mounting plate (2), and the test pump body (5) is arranged inside the basket (4); The test lifting mechanism (6) comprises a mounting seat (61), the mounting seat (61) being fixedly connected to the front side of the mounting plate (2), the two side surfaces of the mounting seat (61) being fixedly connected to a second cylinder (62), the lower surface of the second cylinder (62) being mounted with a second piston rod (63), the lower surface of the second piston rod (63) being fixedly connected to a top air pipe joint (64), and the lower surface of the top air pipe joint (64) being fixedly connected to a pump air pipe joint (65); The lifting basket (4) is fixedly connected to the front side of the mounting plate (2) below the test lifting mechanism (6); the inner bottom surface of the lifting basket (4) is fixedly connected to a limit plate (42); the left inner wall of the lifting basket (4) is fixedly connected to a groove plate (41); the lower surface of the test pump body (5) abuts against the upper surface of the limit plate (42); the left side surface of the test pump body (5) abuts against the right side surface of the groove plate (41); and the refueling hole of the test pump body (5) is located directly below the air outlet of the pump air pipe joint (65).

2. The pump body automatic airtightness testing device according to claim 1, characterized in that: The guide mechanism (3) comprises a concave slide rail (31) and a cylinder one (32); the concave slide rail (31) and the cylinder one (32) are fixedly connected to the top upper surface of the vertical plate (14); a piston rod one (33) is mounted on the output end of the cylinder one (32); and an end of the piston rod one (33) away from the cylinder one (32) is fixedly connected to a connecting plate (34).

3. The pump body automatic airtightness testing device according to claim 2, characterized in that: A T-shaped slide plate (35) is fixedly connected to the outer surface of the connecting plate (34), and a lower surface of the T-shaped slide plate (35) is slidably connected to the inner surface of the concave slide rail (31).

4. The pump body automatic airtightness testing device according to claim 1, characterized in that: A self-locking universal wheel (12) is mounted on the lower surface of the support frame (1).

5. The pump body automatic airtightness testing device according to claim 1, characterized in that: A drain pipe (13) is installed on the lower surface of the water tank (11), and a valve is provided on the outer surface of the drain pipe (13).

6. The pump body automatic airtightness testing device according to claim 1, characterized in that: The sealing mechanism (7) comprises an inclined plate (71), the inclined plate (71) being fixedly connected to the front side of the mounting plate (2), the upper surface of the inclined plate (71) being fixedly connected to two cylinder threes (72), the output end of the cylinder three (72) being mounted with a piston rod three (73), and the end of the piston rod three (73) away from the cylinder three (72) being fixedly connected with a rubber plug (74).

7. The pump body automatic airtightness testing device according to claim 6, characterized in that: The outer surfaces of the two rubber stoppers (74) respectively abut against the inner side walls of the air inlet and the air outlet of the test pump body (5).

8. The pump body automatic airtightness testing device according to claim 7, characterized in that: The rubber stopper (74) is in a conical shape.

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