Quick connection structure for water pump test
By designing the adapter pipe and clamps, the problems of time-consuming and laborious connection and poor sealing in water pump testing were solved, achieving fast and reliable connection and sealing, and eliminating safety hazards.
Patent Information
- Application Number
- CN202520797737.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-25
AI Technical Summary
During existing water pump testing, connecting the outlet pipe to the test bench is time-consuming, labor-intensive, and prone to poor sealing, posing a safety hazard.
The adapter pipe is first connected to the water pump outlet pipe. The adapter pipe is equipped with an installation pipe section and a clamp. A sealing ring is used to achieve a seal. The clamp fixes the connection between the adapter pipe and the test pipe, which simplifies the operation and ensures the seal.
It enables rapid connection for water pump testing, saving time and effort, ensuring sealing, and eliminating the safety hazards of water leakage and electric shock.
Smart Images
Figure CN223938224U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water pump testing technology, and in particular to a quick-connect structure for water pump testing. Background Technology
[0002] Before leaving the factory, water pumps undergo various performance tests, such as flow rate, head, motor current, and power. These tests must be completed through experiments. During the test, the water pump's outlet pipe is sealed and connected to the test tube on the test bench, and the water pump is turned on for testing.
[0003] In existing technologies, bolts are generally used to fix the flange of the water pump outlet pipe to the flange of the test pipe to achieve a sealed connection. However, since the test pipe of the test bench is suspended vertically in the air, the connection operation is time-consuming and laborious, and it is very easy for the connection to be incomplete. If the connection is incomplete, it will affect the sealing of the connection, resulting in water spraying onto the test bench, which poses a safety hazard of electric shock during the test. Utility Model Content
[0004] To overcome the technical defects of existing water pump testing and connection methods, which are time-consuming, labor-intensive, and pose safety hazards, this utility model provides a quick-connect structure for water pump testing.
[0005] The quick-connect structure for water pump testing provided by this utility model includes:
[0006] The test tube is arranged vertically and has a first docking plate at the bottom;
[0007] A sealing ring is fixed to the inner wall of the bottom of the test tube and protrudes inward from the inner wall of the test tube in its natural state.
[0008] The adapter pipe is arranged vertically and has an installation pipe section at the top for insertion into the test tube. The outer diameter of the installation pipe section is larger than the inner diameter of the sealing ring in its natural state so that the sealing ring can achieve a seal through elastic expansion. The adapter pipe is also fitted with a second mating plate adjacent to the installation pipe section below. The bottom end of the adapter pipe is used to connect to the water pump outlet pipe.
[0009] A locking device is used to engage and secure the first and second mating discs when the installation pipe section is inserted into the test pipe.
[0010] Optionally, the sealing ring is a lip seal, with the opening of the lip seal facing upwards, and the outer lip of the lip seal is embedded in an annular groove formed on the inner wall of the bottom of the test tube.
[0011] Optionally, an elastic ring is clamped on the outer side of the inner lip of the lip seal, and the elastic ring is placed inside the opening of the lip seal.
[0012] Optionally, the bottom end of the test tube is provided with a matching pipe section, which is adjacent to the lower part of the annular groove and has an inner diameter smaller than the inner diameter of the pipe section where the annular groove is located. The matching pipe section is clearance-fitted with the installation pipe section, and the sealing ring protrudes inward from the inner wall of the matching pipe section in its natural state.
[0013] Optionally, the inner wall of the bottom end of the mating pipe section is provided with a tapered guide portion, and the outer wall of the top end of the installation pipe section is provided with a tapered guide portion.
[0014] Optionally, the locking element includes at least two hooks, each hook having its top hinged to the edge of the first mating disc and its bottom hooked to the underside of the edge of the second mating disc.
[0015] Optionally, the hooks are provided in two and distributed at a 180° central angle, and both hooks are connected to a suspension rope, the top of which is fixed to the test tube.
[0016] Optionally, the bottom end of the transfer pipe is provided with a lifting plate, and a lifting hook is installed above the lifting plate.
[0017] The technical solution provided by this utility model has the following advantages compared with the prior art:
[0018] The quick-connect structure for water pump testing provided by this utility model includes an adapter pipe. Before connecting to the test bench, the adapter pipe can be pre-connected to the water pump. This connection can be performed on flat ground, making it convenient. Furthermore, the structure features a sealing ring on the inner wall of the bottom of the test tube, a first mating plate at the bottom of the test tube, an installation pipe section at the top of the adapter pipe, a second mating plate below the installation pipe section, and a locking mechanism. When connecting the adapter pipe to the test tube, the installation pipe section is inserted into the test tube. A reliable seal is achieved between the installation pipe section and the test tube through the expansion of the sealing ring. The locking mechanism then secures the adapter pipe to the test tube. This allows for quick connection of the adapter pipe to the suspended test tube, offering convenient, time-saving, and labor-saving operation. The sealing ring ensures a tight seal between the adapter pipe and the test tube, eliminating the safety hazards of water leakage and electric shock. Attached Figure Description
[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a cross-sectional view showing the quick-connect structure for water pump testing in an embodiment of this utility model.
[0022] Figure 2 express Figure 1 The local area at point A in the middle is shown in the larger image.
[0023] In the picture:
[0024] 1. Test tube; 2. First mating plate; 3. Sealing ring; 4. Transfer pipe; 5. Installation pipe section; 6. Second mating plate; 7. Clamp; 8. Annular groove; 9. Elastic ring; 10. Matching pipe section; 11. Conical guide; 12. Conical guide; 13. Lifting rope; 14. Lifting plate; 15. Lifting hook. Detailed Implementation
[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the solution of this utility model will be further described below. It should be noted that, unless otherwise specified, the embodiments of this utility model and the features thereof can be combined with each other.
[0026] In this description, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. It should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.
[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the present invention, and not all embodiments.
[0028] The following is combined Figure 1 and Figure 2 The specific embodiments of this utility model will be described in detail below.
[0029] This embodiment provides a quick-connect structure for testing a water pump, including a test tube 1, a sealing ring 3, an adapter tube 4, and a clamp 7. The test tube 1 is vertically arranged and has a first mating plate 2 at its bottom end. The sealing ring 3 is fixed to the bottom inner wall of the test tube 1 and protrudes inward from the inner wall of the test tube 1 in its natural state. The adapter tube 4 is vertically arranged and has an installation section 5 at its top end for insertion into the test tube 1. The outer diameter of the installation section 5 is larger than the inner diameter of the sealing ring 3 in its natural state so that a seal can be achieved through the elastic expansion of the sealing ring 3. A second mating plate 6 is also fitted on the adapter tube 4 adjacent to the lower part of the installation section 5. The bottom end of the adapter tube 4 is used to connect to the water pump outlet pipe. The clamp 7 is used to clamp and fix the first mating plate 2 and the second mating plate 6 when the installation section 5 is inserted into the test tube 1.
[0030] During the test, firstly, connect the adapter pipe 4 to the outlet pipe of the water pump. Either a threaded connection or a flange connection can be used. Since this can be done on flat ground, the operation is more convenient. Then, hoist the adapter pipe 4, along with the water pump, directly below the test pipe 1, so that the installation section 5 of the adapter pipe 4 is inserted into the test pipe 1, and the first mating plate 2 and the second mating plate 6 come into contact. Finally, use the clamp 7 to fix the first mating plate 2 and the second mating plate 6, thus completing the connection between the adapter pipe 4 and the test pipe 1. The seal between the adapter pipe 4 and the test pipe 1 is achieved by the expansion of the sealing ring 3, which is automatically achieved by the compression of the installation section 5, requiring no manual intervention. The first mating plate 2 and the second mating plate 6 are connected by the clamp 7 to achieve the connection between the adapter pipe 4 and the test pipe 1. The clamping operation is convenient and does not require consideration of sealing issues. The overall operation is simple and convenient, saving time and effort, and the sealing performance is reliable, eliminating the safety hazards of water leakage and electric shock.
[0031] Specifically, the first mating plate 2 is integrally formed with the test tube 1. Of course, a separate structure with a fixed connection is also possible.
[0032] It should be noted that, preferably, both the first docking plate 2 and the second docking plate 6 are set to be perpendicular to the axis of the test tube 1.
[0033] Specifically, the sealing ring 3 is a lip-type sealing ring 3, with the opening of the lip-type sealing ring 3 facing upwards, and the outer lip of the lip-type sealing ring 3 is embedded in the annular groove 8 opened on the inner wall of the bottom of the test tube 1. The lip-type sealing ring 3 is a mature structure in the art, such as a U-shaped sealing ring 3, a Y-shaped sealing ring 3, or a V-shaped sealing ring 3. Its structural feature is that it has an inner lip and an outer lip arranged at intervals, forming an opening between the inner lip and the outer lip. In use, the inner lip is fitted with the surface to be sealed to achieve a seal. Its advantage is that when the pipe is filled with liquid, the liquid will fill the opening and exert an inward squeezing force on the inner lip, thereby making the inner lip fit more tightly with the surface to be sealed and the sealing performance is better. For example, in this embodiment, after the adapter pipe 4 is connected to the test tube 1 and the water pump is turned on, water will fill the test tube 1 and fill the opening of the lip-type sealing ring 3. The greater the water pressure, the greater the squeezing force on the inner lip, making the inner lip fit tightly with the outer wall of the adapter pipe 4, which can better ensure the sealing performance between the adapter pipe 4 and the test tube 1.
[0034] Furthermore, an elastic ring 9 is clamped on the outer side of the inner lip of the lip seal ring 3, and the elastic ring 9 is placed inside the opening of the lip seal ring 3. The elastic ring 9 can apply a certain compressive force to the inner lip, so that the inner lip can fit more tightly against the outer wall of the adapter pipe 4, thereby improving the sealing performance.
[0035] Specifically, the bottom end of the test tube 1 is provided with a mating pipe section 10. The mating pipe section 10 is located adjacent to the lower part of the annular groove 8 and its inner diameter is smaller than the inner diameter of the pipe section where the annular groove 8 is located. The mating pipe section 10 is clearance-fitted with the installation pipe section 5, and the sealing ring 3 protrudes inward from the inner wall of the mating pipe section 10 in its natural state. The mating pipe section 10 has two functions: first, the mating pipe section 10 can support the lip seal 3 and prevent the lip seal 3 from being washed away from the annular groove 8 by water; second, the clearance fit between the mating pipe section 10 and the installation pipe section 5 can prevent the installation pipe section 5 from shaking and improve the structural reliability.
[0036] It is easy to understand that if the mating pipe section 10 is removed, that is, the inner wall of the test tube 1 is of a uniform diameter, it is theoretically feasible. However, in actual use, since the sealing ring 3 has a certain size, the gap between the adapter pipe 4 and the test tube 1 is large, and the adapter pipe 4 may wobble. Therefore, this embodiment overcomes this defect by setting the mating pipe section 10.
[0037] More specifically, the inner wall of the bottom end of the connecting pipe section 10 is provided with a tapered guide portion 11, and the outer wall of the top end of the mounting pipe section 5 is provided with a tapered guide portion 12. When the adapter pipe 4 is inserted into the test pipe 1, the tapered guide portion 11 and the tapered guide portion 12 cooperate to make the insertion process smoother and simpler.
[0038] Specifically, the locking component 7 includes at least two hooks, each hook's top end is hinged to the edge of the first mating plate 2 and its bottom end is used to hook onto the lower edge of the second mating plate 6. When the adapter tube 4 is inserted into the test tube 1, the hooks are manually lifted to avoid the insertion of the adapter tube 4; after insertion is complete and the second mating plate 6 contacts the first mating plate 2, the hooks automatically lock onto the lower edge of the second mating plate 6 under gravity, making the operation quick and effortless. Of course, the function of the locking component 7 is to achieve the locking and fixing of the first mating plate 2 and the second mating plate 6. The locking component 7 can also be a U-shaped frame. After the first mating plate 2 contacts the second mating plate 6, the U-shaped frame is directly inserted from the side, so that the first mating plate 2 and the second mating plate 6 are simultaneously placed inside the U-shaped frame, and the locking is achieved through the two wings of the U-shaped frame; the locking component 7 can also be a clamp. After the first mating plate 2 contacts the second mating plate 6, the clamp is used to lock onto the edges of the first mating plate 2 and the second mating plate 6 and clamp them tightly; other commonly used structures in the field can also be used, but it is necessary to ensure that the operation is simple and quick.
[0039] More specifically, there are two hooks arranged at a 180° central angle, and both hooks are connected to a suspension rope 13, the top of which is fixed to the test tube 1. When it is necessary to lift the hook, simply pull the suspension rope 13; after insertion is complete, release the suspension rope 13, and the hook will automatically engage under gravity, further improving the ease of operation.
[0040] It should be noted that, in order to improve the locking force of the hook and ensure its firmness, a torsion spring can be installed at the hinge shaft of the hook. The torsion spring drives the hook to engage with the second mating plate 6 and the first mating plate 2, thereby improving the reliability of the engagement by utilizing the torque of the torsion spring.
[0041] Specifically, the bottom of the transfer pipe 4 is equipped with a lifting plate 14, and a hook 15 is installed above the lifting plate 14. Lifting the transfer pipe 4 via the hook 15 makes it more convenient.
[0042] The above are merely specific embodiments of this utility model, enabling those skilled in the art to understand or implement this utility model. Although detailed descriptions have been provided with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments, and they should all be covered by the protection scope of the claims.
Claims
1. A quick-connect structure for testing a water pump, characterized in that, include: The test tube (1) is arranged vertically and has a first docking plate (2) at the bottom. A sealing ring (3) is fixed on the bottom inner wall of the test tube (1) and protrudes into the inner wall of the test tube (1) in its natural state; The adapter pipe (4) is arranged vertically and has an installation pipe section (5) at the top for insertion into the test pipe (1). The outer diameter of the installation pipe section (5) is larger than the inner diameter of the sealing ring (3) in its natural state so that the sealing ring (3) can be sealed by elastic expansion. The adapter pipe (4) is also fitted with a second docking plate (6) adjacent to the installation pipe section (5) below. The bottom end of the adapter pipe (4) is used to connect to the water pump outlet pipe. The clip (7) is used to snap and fix the first mating plate (2) and the second mating plate (6) when the installation pipe section (5) is inserted into the test pipe (1).
2. The quick-connect structure for water pump testing according to claim 1, characterized in that, The sealing ring (3) is a lip-type sealing ring (3), the opening of the lip-type sealing ring (3) faces upward, and the outer lip of the lip-type sealing ring (3) is embedded in the annular groove (8) opened on the inner wall of the bottom of the test tube (1).
3. The quick-connect structure for pump testing according to claim 2, characterized in that, The inner lip of the lip seal (3) is clamped with an elastic ring (9), which is placed inside the opening of the lip seal (3).
4. The quick-connect structure for water pump testing according to claim 2 or 3, characterized in that, The bottom end of the test tube (1) is provided with a matching pipe section (10). The matching pipe section (10) is located below the annular groove (8) and its inner diameter is smaller than the inner diameter of the pipe section where the annular groove (8) is located. The matching pipe section (10) is in clearance fit with the installation pipe section (5). The sealing ring (3) protrudes into the inner wall of the matching pipe section (10) in its natural state.
5. The quick-connect structure for water pump testing according to claim 4, characterized in that, The inner wall of the bottom end of the mating pipe section (10) is provided with a tapered guide part (11), and the outer wall of the top end of the installation pipe section (5) is provided with a tapered guide part (12).
6. The quick-connect structure for water pump testing according to claim 1, characterized in that, The locking element (7) includes at least two hooks, each hook having its top hinged to the edge of the first mating plate (2) and its bottom hooked to the underside of the edge of the second mating plate (6).
7. The quick-connect structure for pump testing according to claim 6, characterized in that, The hooks are provided in two and are distributed at a 180° central angle. Both hooks are connected to a suspension rope (13), and the top of the suspension rope (13) is fixed to the test tube (1).
8. The quick-connect structure for water pump testing according to claim 1, characterized in that, The bottom end of the transfer pipe (4) is provided with a lifting plate (14), and a hook (15) is installed on the top of the lifting plate (14).