A water pressure test fixture
By designing a multi-station support base and a hydraulic pressure testing fixture driven by a clamping cylinder, the problem of existing fixtures being unable to perform batch testing was solved, and efficient multi-workpiece hydraulic pressure testing was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG GUOSHENGRONG PRECISION MASCH CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-06-12
AI Technical Summary
Existing water pressure testing fixtures cannot perform batch testing, resulting in low testing efficiency.
A water pressure testing fixture was designed, comprising a support base, a pressure gauge, a water inlet pipe, a clamping cylinder, and a clamping plate. The support base has multiple stations, each with a water inlet. The clamping cylinder drives the clamping plate to press against the workpiece to form a sealed cavity. The pressure gauge is used to observe the water pressure status, enabling simultaneous testing of multiple workpieces.
It enables simultaneous hydrostatic testing of multiple workpieces, improving testing efficiency. In particular, the multi-station design of the support base and the drive of the clamping cylinder enable rapid evaluation of qualified products.
Smart Images

Figure CN224354018U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water pressure testing fixture technology, and specifically to a water pressure testing fixture. Background Technology
[0002] Light-emitting diodes, or LEDs for short, are commonly used light-emitting devices that release light through the recombination of electrons and holes. They are widely used in the lighting industry. In some applications, LEDs are placed inside lamp housings. To ensure the airtightness of the lamp housings, they undergo a water pressure test after production to check their seal. However, existing fixtures for water pressure testing of lamp housings can only test individual lamp housings, making batch testing impossible and resulting in low testing efficiency. Utility Model Content
[0003] The purpose of this invention is to provide a water pressure testing fixture, which aims to solve the problem of low testing efficiency caused by the inability to conduct batch testing with existing fixtures.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A water pressure testing fixture is provided, including a support base, a pressure gauge, a water inlet pipe, a clamping cylinder, and a clamping plate. The support base has multiple workstations, and the interior of the support base has a water inlet channel. Each workstation has a water inlet, which is connected to the water inlet channel. One end of the water inlet pipe is connected to the water inlet channel, and the other end of the water inlet pipe is connected to an external water source. The pressure gauge is located on the water inlet pipe, and the clamping cylinder is connected to the clamping plate to drive the clamping plate to press against the workpiece.
[0006] Optionally, the water pressure testing fixture further includes a clamping connecting rod, one end of which is connected to the clamping plate, and the other end of which is connected to the clamping cylinder.
[0007] Optionally, the water pressure testing fixture further includes a clamping support column and a clamping rotating shaft, wherein the clamping rotating shaft is disposed on the clamping support column and the clamping connecting rod is rotatably connected to the clamping rotating shaft.
[0008] Optionally, the water pressure testing fixture further includes a positioning pin, and the support base is provided with a plurality of positioning holes and slots, into which the positioning pin is inserted.
[0009] Optionally, the water pressure testing fixture further includes a water tank, which is located below the support base.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] In the water pressure testing fixture provided by this utility model, the support base has multiple stations, and the inside of the support base has a water inlet channel. Each station has a water inlet, which is connected to the water inlet channel. A pressure gauge is installed on the water inlet pipe. The workpiece is placed on the station, and the clamping cylinder drives the clamping plate to press against the workpiece, so that the workpiece is tightly attached to the support base. The workpiece usually has a test hole, which is attached to the water inlet. At this time, the inside of the workpiece, the water inlet, and the water inlet channel form a sealed cavity. When the water inlet pipe is kept in the water inlet state, the water cannot flow. The water pressure status of the water inlet pipe is observed through the pressure gauge. After about 15 minutes, if the pressure gauge drops by no more than 0.1 MPa, the tested workpiece can be evaluated as a qualified product. With this setting, multiple workpieces can be tested for water pressure at the same time, that is, batch testing can be completed, which effectively improves the testing efficiency. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the structure of the water pressure testing fixture of this utility model;
[0014] Figure 2 This is a top view of the water pressure testing fixture of this utility model;
[0015] Figure 3 This is a top view of the support base of the water pressure testing fixture of this utility model when one half is loaded with the workpiece.
[0016] In the diagram: 1. Support base; 2. Clamping cylinder; 3. Clamping plate; 4. Water inlet; 5. Water inlet channel; 6. Clamping connecting rod; 7. Clamping support column; 8. Clamping shaft; 9. Positioning hole groove; 10. Workpiece. Detailed Implementation
[0017] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0018] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.
[0020] The following is combined with Figures 1 to 3 This utility model describes a water pressure testing fixture.
[0021] like Figures 1 to 3 As shown, this utility model provides a water pressure testing fixture, including a support base 1, a pressure gauge, a water inlet pipe, a clamping cylinder 2, and a clamping plate 3. The support base 1 has multiple workstations, and the support base 1 has a water inlet channel 5 inside. Each workstation has a water inlet 4, which is connected to the water inlet channel 5. One end of the water inlet pipe is connected to the water inlet channel 5, and the other end of the water inlet pipe is connected to an external water source. The pressure gauge is located on the water inlet pipe. The clamping cylinder 2 is connected to the clamping plate 3 to drive the clamping plate 3 to press against the workpiece 10.
[0022] In the water pressure testing fixture provided in this embodiment, the support base 1 has multiple stations. The support base 1 has an inlet channel 5 inside, and each station has an inlet 4. The inlet 4 is connected to the inlet channel 5. A pressure gauge is installed on the inlet pipe. The workpiece 10 is placed on the station. The clamping cylinder 2 drives the clamping plate 3 to press against the workpiece 10, so that the workpiece 10 is tightly attached to the support base 1. The workpiece 10 generally has a test hole, which is attached to the inlet 4. At this time, the inside of the workpiece 10, the inlet 4, and the inlet channel 5 form a sealed cavity. When the inlet pipe is kept in the water supply state, the water cannot flow. The water pressure status of the inlet pipe is observed through the pressure gauge. After about 15 minutes, if the pressure gauge drops by no more than 0.1 MPa, the workpiece 10 can be evaluated as a qualified product. With this setting, multiple workpieces 10 can be tested for water pressure at the same time, that is, batch testing is completed, which effectively improves the testing efficiency.
[0023] Specifically, one workstation can hold two workpieces (10), resulting in higher testing efficiency.
[0024] More specifically, each workpiece 10 is equipped with two water inlets 4, which can fill the water faster, improve water filling efficiency, and thus improve testing efficiency.
[0025] In some embodiments, the water pressure testing fixture further includes a clamping connecting rod 6, one end of which is connected to the clamping plate 3 and the other end of which is connected to the clamping cylinder 2, which can better drive the clamping plate 3 to press against the workpiece 10.
[0026] In some embodiments, the water pressure testing fixture further includes a clamping support column 7 and a clamping rotating shaft 8. The clamping rotating shaft 8 is disposed on the clamping support column 7, and the clamping connecting rod 6 is rotatably connected to the clamping rotating shaft 8. Through the lever principle, the clamping plate 3 can be driven to press against the workpiece 10 more forcefully.
[0027] In some embodiments, the water pressure testing fixture also includes a positioning pin. The support base 1 is provided with a plurality of positioning hole slots 9, and the positioning pin is inserted into the positioning hole slots 9. Specifically, the workpiece 10 is provided with some mounting holes, and the support base 1 is provided with a plurality of corresponding positioning hole slots 9. By passing through the mounting holes and positioning hole slots 9 with the positioning pin, the workpiece 10 can be fixed more conveniently, thereby improving work efficiency.
[0028] In some embodiments, the water pressure testing fixture also includes a water tank located below the support base 1, which can prevent water from splashing everywhere in the event of leakage.
[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A water pressure testing fixture, characterized in that, The device includes a support base (1), a pressure gauge, a water inlet pipe, a clamping cylinder (2), and a clamping plate (3). The support base (1) has multiple workstations. The support base (1) has a water inlet channel (5) inside. Each workstation has a water inlet (4). The water inlet (4) is connected to the water inlet channel (5). One end of the water inlet pipe is connected to the water inlet channel (5), and the other end of the water inlet pipe is connected to an external water source. The pressure gauge is located on the water inlet pipe. The clamping cylinder (2) is connected to the clamping plate (3) to drive the clamping plate (3) to press against the workpiece (10).
2. The water pressure testing fixture according to claim 1, characterized in that, The water pressure testing fixture also includes a clamping connecting rod (6), one end of which is connected to the clamping plate (3), and the other end of which is connected to the clamping cylinder (2).
3. The water pressure testing fixture according to claim 2, characterized in that, The water pressure testing fixture also includes a clamping support column (7) and a clamping rotating shaft (8). The clamping rotating shaft (8) is located on the clamping support column (7), and the clamping connecting rod (6) is rotatably connected to the clamping rotating shaft (8).
4. The water pressure testing fixture according to claim 1, characterized in that, The water pressure testing fixture also includes a positioning pin, and the support base (1) is provided with a plurality of positioning holes (9), and the positioning pin is inserted into the positioning holes (9).
5. The water pressure testing fixture according to claim 1, characterized in that, The water pressure testing fixture also includes a water tank, which is located below the support base (1).