Pump shell liquid tightness detection device
Patent Information
- Application Number
- CN202522692004.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-19
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-19
AI Technical Summary
Existing pump casing testing devices cannot effectively test water injection sealing, and their complex structure makes them inconvenient to use.
A pump casing liquid tightness testing device was designed. The pump casing is fixed by a water tank, a support plate and a flange. The pump body pumps water and the pressure change inside the pump casing is detected by a pressure gauge. The water injection tightness test is achieved by combining a funnel and a tap.
It enables the testing of the water injection seal of the pump casing, has a simple structure, is easy to use, and can keep the working environment clean, saving costs.
Smart Images

Figure CN224933600U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of pump body testing equipment, and in particular to a pump casing liquid tightness testing device. Background Technology
[0002] The pump casing is a component of the pump body. To ensure the quality of the pump, the sealing performance of the pump casing needs to be tested.
[0003] Testing the sealing performance of a pump casing requires a testing device, such as the automotive pump body and casing water sealing testing device CN203083783U. Most of these devices use clamping and pressing sealing methods, which are only suitable for airtightness testing and not for water injection sealing testing.
[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model discloses a pump casing liquid tightness testing device to meet the requirements for testing the sealing performance of pump casings during water injection.
[0006] The technical solution adopted in this utility model is as follows: A pump casing liquid tightness testing device includes a water tank located on the ground. A first support plate is mounted on the upper end of the water tank, and a pump body is mounted on the upper end of the first support plate. The inlet end of the pump body is connected to the water in the water tank via a first pipe. The device also includes a second support plate mounted on the ground and positioned above the water tank. The pump casing is fixed to the second support plate to close a first through-hole at the lower end of the pump casing. A first flange is fixed to the side of the pump casing to close a second through-hole on the side of the pump casing. A second flange is fixed to the upper end of the pump casing to close a third through-hole at the upper end of the pump casing. The outlet end of the pump body is connected to an interface on the first flange via a second pipe. The second pipe connects to the interior of the pump casing. The pump body is configured to pump water into the pump casing via the second pipe. A first valve body and a pressure gauge are sequentially mounted on the second pipe. The first valve body can open and close the second pipe, and the pressure gauge detects the water pressure inside the second pipe.
[0007] A further technical solution is that an integrated block is installed on the second pipeline, and the pressure gauge is installed on the integrated block.
[0008] A further technical solution is that a faucet is also provided on the side of the integrated block, the inlet of the faucet is connected to the second pipe, and the outlet of the faucet extends out of the side of the first support plate and is located above the water tank.
[0009] A further technical solution is that, when viewed from above, the second support plate is located on the side of the first support plate.
[0010] A further technical solution is that a fourth through hole is opened on the second support plate corresponding to the first through hole, and a funnel is set at the lower end of the second support plate corresponding to the fourth through hole.
[0011] A further technical solution is that a second valve body is provided on the funnel, and the second valve body can open and close the funnel.
[0012] A further technical solution is that the lower end of the pump casing has a first flange face, which is bolted to the second support plate; the side of the pump casing is connected to a side pipe, the lower end of the side pipe is higher than the lower end of the pump casing, the end of the side pipe has a second flange face, which is bolted to the first flange; the upper end of the pump casing has a third flange face, which is bolted to the second flange.
[0013] A further technical solution is that a first support foot is provided at the four corners of the lower end of the pool, and a second support foot is provided at the four corners of the lower end of the second support plate.
[0014] The beneficial effects of this utility model embodiment are as follows: (I) The pump casing liquid tightness testing device of this utility model is achieved by fixing the pump casing to the second support plate, the second support plate sealing the first through hole at the lower end of the pump casing, the first flange sealing the second through hole on the side of the pump casing, the second flange sealing the third through hole at the upper end of the pump casing, opening the pump body, and pumping water into the pump casing through the second pipe. When a certain pressure is reached, the first valve body is closed, and the pressure gauge detects the pressure change in the second pipe, thereby realizing the water filling tightness testing of the pump casing. The structure is simple and easy to use.
[0015] (ii) Furthermore, a fourth through hole is formed at the second support plate corresponding to the first through hole, and a funnel is set at the lower end of the second support plate corresponding to the fourth through hole. A second valve body is set on the funnel, which can open and close the funnel. When the second valve body is open, the water in the pump casing is discharged into the water tank through the fourth through hole and the funnel in sequence. A faucet is also set on the side of the integrated block. The faucet inlet is connected to the second pipe, and the faucet outlet extends out of the side of the first support plate and is located above the water tank. Opening the faucet can discharge the residual water in the second pipe into the water tank, saving costs and keeping the working environment clean. Attached Figure Description
[0016] Figure 1This is a front view structural diagram of the pump casing liquid tightness detection device of this utility model.
[0017] Figure 2 This is a top view of the pump casing liquid tightness testing device of this utility model.
[0018] Figure 3 This is an isometric view of the pump casing in the pump casing liquid tightness testing device of this utility model.
[0019] Figure 4 This is a bottom view of the pump casing in the pump casing liquid tightness testing device of this utility model.
[0020] In the picture: 1. Water tank; 11. First support leg; 2. First support plate; 3. Second support plate; 31. Second support leg; 32. Fourth through hole; 33. Funnel; 34. Second valve body; 35. Gasket; 4. Pump casing; 41. First flange face; 42. First through hole; 43. Side pipe; 44. Second flange face; 45. Second through hole; 46. First flange; 47. Third flange face; 48. Third through hole; 49. Second flange; 5. Pump body; 51. First pipe; 52. Second pipe; 53. First valve body; 54. Integrated block; 6. Pressure gauge; 7. Faucet. Detailed Implementation
[0021] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0022] Example: This embodiment discloses a pump casing liquid tightness testing device.
[0023] like Figure 1 and Figure 2 As shown, the pump casing liquid tightness testing device includes a water tank 1, which is located on the ground. A first support plate 2 is installed at the upper end of the water tank 1, and a pump body 5 is installed at the upper end of the first support plate 2. The water inlet of the pump body 5 is connected to the water in the water tank 1 through a first pipe 51. The first support plate 2 and the pump body 5 can be installed, disassembled, and replaced together, which is convenient for maintenance.
[0024] The pump casing liquid tightness testing device also includes a second support plate 3, which is mounted on the ground and located above the water tank 1.
[0025] Pump casing 4 is fixed to the second support plate 3 to close the first through hole 42 at the lower end of pump casing 4. A first flange 46 is fixed to the side of pump casing 4 to close the second through hole 45 on the side of pump casing 4. A second flange 49 is fixed to the upper end of pump casing 4 to close the third through hole 48 at the upper end of pump casing 4. Figure 3 and Figure 4 As shown, exemplarily, the lower end of the pump casing 4 has a first flange face 41, which is bolted to the second support plate 3. A side pipe 43 is connected to the side of the pump casing 4, with its lower end higher than the lower end of the pump casing 4. The end of the side pipe 43 has a second flange face 44, which is bolted to the first flange 46. The upper end of the pump casing 4 has a third flange face 47, which is bolted to the second flange 49. Preferably, a gasket 35 is provided at the upper end of the second bracket. The upper surface of the gasket 35 is flat, and the lower end of the pump casing 4 is positioned on the gasket 35 to ensure a tight seal between the gasket 35 and the first flange face 41.
[0026] The outlet of the pump body 5 is connected to the interface on the first flange 46 via the second pipe 52. The second pipe 52 connects to the inside of the pump casing 4. The pump body 5 is configured to pump water into the pump casing 4 through the second pipe 52. A first valve body 53 and a pressure gauge 6 are also sequentially installed on the second pipe 52. The first valve body 53 can open and close the second pipe 52, and the pressure gauge 6 detects the water pressure inside the second pipe 52. For example, an integrated block 54 is provided on the second pipe 52, and the pressure gauge 6 is installed on the integrated block 54 to facilitate the installation and replacement of the pressure gauge 6.
[0027] like Figure 1 and Figure 2 As shown, a faucet 7 is further provided on the side of the integrated block 54. The inlet of the faucet 7 is connected to the second pipe 52, and the outlet of the faucet 7 extends out of the side of the first support plate 2 and is located above the water tank 1. Opening the faucet 7 can discharge the residual water in the second pipe 52 into the water tank 1, avoiding pollution of the working environment and waste of the test water. The faucet 7 is installed on the integrated block 54 for easy installation and replacement.
[0028] like Figure 1 and Figure 2 As shown, further, in a top view, the second support plate 3 is located on the side of the first support plate 2. A fourth through hole 32 is formed on the second support plate 3 corresponding to the first through hole 42, and a funnel 33 is provided at the lower end of the second support plate 3 corresponding to the fourth through hole 32. A second valve body 34 is provided on the funnel 33, which can open and close the funnel 33. When the second valve body 34 is open, the water in the pump casing 4 is discharged into the water tank 1 sequentially through the fourth through hole 32 and the funnel 33, saving costs and maintaining a clean working environment. The fact that the second support plate 3 is higher than the water tank 1 also facilitates the operator in opening and closing the second valve body 34.
[0029] like Figure 1 As shown, furthermore, a first support foot 11 is provided at the four corners of the lower end of the pool 1, and a second support foot 31 is provided at the four corners of the lower end of the second support plate 3, so as to facilitate the operator to move the pool 1 and the second support plate 3.
[0030] In this embodiment, by fixing the pump casing 4 to the second support plate 3, the second support plate 3 closes the first through hole 42 at the lower end of the pump casing 4, the first flange 46 closes the second through hole 45 on the side of the pump casing 4, and the second flange 49 closes the third through hole 48 at the upper end of the pump casing 4, the pump body 5 is opened, and the pump body 5 pumps water into the pump casing 4 through the second pipe 52. When a certain pressure is reached, the first valve body 53 is closed, and the pressure gauge 6 detects the pressure change in the second pipe 52, thus realizing the water injection sealing test of the pump casing 4. The structure is simple and easy to use.
[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A pump casing liquid tightness testing device, characterized in that, The pump casing liquid tightness testing device includes a water tank (1), which is set on the ground; a first support plate (2) is set at the upper end of the water tank (1), and a pump body (5) is set at the upper end of the first support plate (2); the water inlet of the pump body (5) is connected to the water in the water tank (1) through a first pipe (51). The pump casing liquid tightness testing device also includes a second support plate (3), which is mounted on the ground and located above the water tank (1); the pump casing (4) is fixed on the second support plate (3) to close the first through hole (42) at the lower end of the pump casing (4), a first flange (46) is fixed on the side of the pump casing (4) to close the second through hole (45) on the side of the pump casing (4), and a second flange (49) is fixed on the upper end of the pump casing (4) to close the third through hole (48) at the upper end of the pump casing (4); The outlet of the pump body (5) is connected to the interface on the first flange (46) through the second pipe (52). The second pipe (52) is connected to the inside of the pump casing (4). The pump body (5) is configured to pump water into the pump casing (4) through the second pipe (52). A first valve body (53) and a pressure gauge (6) are also sequentially installed on the second pipe (52). The first valve body (53) can open and close the second pipe (52). The pressure gauge (6) detects the water pressure in the second pipe (52).
2. The pump casing liquid tightness testing device according to claim 1, characterized in that: An integrated block (54) is provided on the second pipe (52), and the pressure gauge (6) is provided on the integrated block (54).
3. The pump casing liquid tightness testing device according to claim 2, characterized in that: The integrated block (54) is also provided with a faucet (7) on its side. The inlet of the faucet (7) is connected to the second pipe (52), and the outlet of the faucet (7) extends out of the side of the first support plate (2) and is located above the pool (1).
4. The pump casing liquid tightness testing device according to claim 1, characterized in that: When viewed from above, the second support plate (3) is located on the side of the first support plate (2).
5. The pump casing liquid tightness testing device according to claim 4, characterized in that: The second support plate (3) has a fourth through hole (32) at the first through hole (42), and a funnel (33) is provided at the lower end of the second support plate (3) at the fourth through hole (32).
6. The pump casing liquid tightness testing device according to claim 5, characterized in that: A second valve body (34) is provided on the funnel (33), which can open and close the funnel (33).
7. The pump casing liquid tightness testing device according to claim 1, characterized in that: The pump casing (4) has a first flange face (41) at its lower end, which is bolted to the second support plate (3); the side of the pump casing (4) is connected to a side pipe (43), the lower end of which is higher than the lower end of the pump casing (4), and the end of which has a second flange face (44), which is bolted to the first flange (46); the upper end of the pump casing (4) has a third flange face (47), which is bolted to the second flange (49).
8. The pump casing liquid tightness testing device according to claim 1, characterized in that: The pool (1) is provided with a first support foot (11) at the four corners of its lower end, and the second support plate (3) is provided with a second support foot (31) at the four corners of its lower end.
Citation Information
Patent Citations
Water tightness detection apparatus for pump casing of automobile water pump
CN203083783U
