Faucet water leakage test equipment

Abstract

The utility model discloses a faucet water leakage test device which comprises a support frame, a test water tank, a first telescopic cylinder and a test frame, and the test frame is provided with a plurality of groups of clamping assemblies. The clamping assembly seals the inner wall of the faucet through an air inlet pipe, a pressurizing pipe and an annular elastic body, a second telescopic cylinder drives a translation cam to be in linkage with a guide wheel and a driven shaft, and the pressurizing pipe is controlled to axially slide to extrude the elastic body. The test frame is driven by the first telescopic cylinder to lift and immersed in the test water tank, compressed air is introduced through the air inlet hose, and bubbles are observed to judge the water leakage condition. The equipment can synchronously detect a plurality of faucets, realizes automatic clamping and sealing through mechanical linkage, combines air pressure detection and automatic control, improves the detection efficiency and precision, is suitable for industrial batch quality inspection, and solves the problems of low efficiency, large error and poor compatibility of traditional manual detection.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically a water faucet leakage testing device. Background Technology

[0002] Leak testing of faucets before they leave the factory is a crucial step in ensuring product quality and protecting user rights. During production, leaks may occur due to insufficient precision in components, material defects, or manufacturing issues. By simulating real-world usage environments such as high and low pressure, substandard products can be eliminated in advance, ensuring their sealing and reliability while complying with industry standards and certification requirements for leakage rates in various countries.

[0003] In the prior art, a faucet testing device with the publication number "CN214471740U" is disclosed, which relates to a faucet testing device and is mainly intended to solve the problem of faucet testing equipment. It includes a device frame, a water tank pipeline system fixed at the bottom of the middle part of the device frame, a lower test chamber fixed at the middle part of the device frame, a test chamber panel fixed on the side of the lower test chamber, and an electrical control system fixed inside the test chamber panel.

[0004] However, existing technologies still have significant shortcomings, such as:

[0005] Traditional testing equipment is mostly operated manually at a single station. It requires manual clamping of each faucet and manual adjustment of the seals. The clamping efficiency is low and the sealing performance depends on the operator's experience, which can easily lead to missed or false detections. In addition, the manual operation process is cumbersome and cannot meet the high-efficiency quality inspection requirements of industrial mass production. It also has high maintenance costs and lacks automation and energy-saving design. Utility Model Content

[0006] The purpose of this invention is to provide a faucet leakage testing device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A faucet leakage testing device includes a support frame, on which a test water tank and a first telescopic cylinder are mounted.

[0009] A test frame is fixedly installed on the sliding end of the first telescopic cylinder. The test frame can enter or move out of the test water tank under the drive of the first telescopic cylinder.

[0010] The test frame is equipped with several clamping components, which are used to clamp the inner wall of the faucet to be tested.

[0011] The clamping assembly includes an air inlet pipe fixedly mounted on a test frame, the air inlet pipe passing through the test frame, a pressure tube that can slide along its axis fitted on the air inlet pipe, an annular flange fixedly mounted at the end of the air inlet pipe, and an annular elastic body disposed between the pressure tube and the annular flange, the elastic body being fitted outside the air inlet pipe; when the pressure tube moves toward the annular flange, the elastic body is axially compressed and radially expanded, thereby making it fit tightly against the inner wall of the faucet.

[0012] Preferably, the clamping assembly further includes a guide rail fixedly mounted on the test frame, a plurality of sliders slidably mounted on the guide rail, a translation cam fixedly mounted on the sliders, and a driven shaft fixedly mounted on the pressurization tube. The driven shaft cooperates with the translation cam. When the translation cam slides along the guide rail, the driven shaft moves axially along the intake tube under the action of the translation cam profile.

[0013] Preferably, several translation cams on the same guide rail are fixedly connected by a connecting rod.

[0014] Preferably, a second telescopic cylinder is fixedly installed on the test frame, and the movable end of the second telescopic cylinder is fixedly connected to one of the translation cams, so that all translation cams on the same guide rail can slide synchronously through the connecting rod.

[0015] Preferably, a guide wheel is rotatably mounted on the driven shaft, and the guide wheel is in contact with the translation cam.

[0016] Preferably, one end of the air inlet pipe is fixedly provided with an air inlet hose, which passes through the test water tank and is connected to an external air source.

[0017] Preferably, the test water tank is fixedly connected to an inlet pipe and an outlet pipe.

[0018] Preferably, an overflow tank is fixedly installed on one side of the test water tank, the overflow tank is connected to the test water tank through an overflow hole, and an overflow pipe is fixedly connected to the overflow tank.

[0019] Preferably, a guide frame is fixedly mounted on the support frame, and a plurality of guide wheels are rotatably mounted on the test frame, with the guide wheels in contact with the guide frame;

[0020] A support rod is fixedly installed on the test frame, and a support wheel is rotatably installed on the support rod, with the support wheel in contact with the test water tank.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. The test rack has multiple clamping components distributed around its circumference, which can simultaneously complete the clamping and testing of multiple faucets in a single operation. With the lifting linkage of the first telescopic cylinder, the "loading-testing-unloading" process can be quickly cycled, which improves efficiency compared to traditional single-station equipment and significantly shortens the quality inspection cycle for mass production.

[0023] 2. The second telescopic cylinder drives the translation cam to pressurize the tube. By cooperating with the guide wheel, the radial expansion of the annular elastomer is precisely controlled, and the inner wall of the faucet is automatically sealed without manual adjustment, thus avoiding the sealing difference caused by manual operation.

[0024] In the process of using this utility model, the faucet to be tested is first fitted onto the end of the air inlet pipe. The second telescopic cylinder is activated to push the translation cam to slide, and the guide wheel drives the pressure pipe to compress the annular elastic body, causing it to expand radially and form a seal against the inner wall of the faucet. Then, the first telescopic cylinder drives the test frame to descend, immersing the faucet into a test water tank filled with water. An external air source introduces compressed air into the air inlet pipe. If there is a leak in the faucet, bubbles will be generated in the water, which the operator can use to determine the leakage. After the test is completed, the test frame is raised, the second telescopic cylinder is reset to release the elastic body, and the operator removes the faucet and drains the water from the test water tank. The entire process is automated to achieve efficient testing of multiple batches of faucets. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the overall device of this utility model;

[0026] Figure 2 This is a three-dimensional structural diagram of the overall device of this utility model from another perspective;

[0027] Figure 3 This is a three-dimensional structural diagram of the overall device of this utility model;

[0028] Figure 4 This is a schematic diagram of the three-dimensional structure of the test water tank of this utility model;

[0029] Figure 5 This is a schematic diagram of the three-dimensional structure of the test rack of this utility model;

[0030] Figure 6 This is a three-dimensional structural diagram of the annular elastomer of this utility model in its initial state;

[0031] Figure 7 This is a three-dimensional structural diagram of the annular elastomer of this utility model when it is subjected to compression.

[0032] In the diagram: 1. Support frame; 2. Test water tank; 3. First telescopic cylinder; 4. Test frame; 501. Air inlet pipe; 502. Pressurization pipe; 503. Annular flange; 504. Annular elastomer; 505. Guide rail; 506. Slider; 507. Translation cam; 508. Driven shaft; 509. Guide wheel; 6. Connecting rod; 7. Second telescopic cylinder; 8. Air inlet hose; 9. Water inlet pipe; 10. Drain pipe; 11. Overflow tank; 12. Overflow hole; 13. Overflow pipe; 14. Guide frame; 15. Guide wheel; 16. Support rod; 17. Support wheel. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figure 1-7 This utility model provides a technical solution:

[0035] This faucet leakage test equipment is installed on the ground via a metal support frame 1. A test water tank 2 is fixed on the support frame 1, and a first telescopic cylinder 3 is vertically installed in the middle of the support frame 1. The sliding end of the first telescopic cylinder 3 is fixedly connected to the center of the bottom of the test frame 4 by bolts. When the piston rod of the first telescopic cylinder 3 moves in a linear reciprocating motion, the test frame 4 can smoothly rise and fall in the vertical direction, entering or leaving the interior space of the test water tank 2.

[0036] Test rack 4 is a frame structure with multiple sets of clamping components evenly distributed on its top. Each set of clamping components corresponds to the testing station of the faucet to be tested.

[0037] The core structure of the clamping assembly is the air inlet pipe 501, which is welded to the transverse support of the test frame 4. Its axis is aligned with the central axis of the faucet under test. A corresponding gap is provided between the air inlet pipe 501 and the inner wall of the faucet to allow the faucet to be easily removed. The middle of the air inlet pipe 501 passes through the test frame 4 and remains sealed. A pressure tube 502 is fitted onto the end of the air inlet pipe 501 closest to the faucet under test. The pressure tube 502 and the air inlet pipe 501 are connected by a linear bearing or other means. An anti-rotation device is provided between the air inlet pipe 501 and the pressure tube 502, such as a groove on the air inlet pipe 501 and a protrusion on the pressure tube 502 set in the groove. This can limit the radial rotation of the pressure tube 502 while ensuring that the pressure tube 502 can slide along the axis of the air inlet pipe 501. An annular flange 503, integrally formed or threaded at the end of the air inlet pipe 501, is fitted between the pressurizing pipe 502 and the annular flange 503. An annular elastomer 504 (such as a silicone rubber ring) is provided on the elastomer. An annular groove for placing the annular flange is provided on the pressurizing pipe 502 and the annular flange 503. A gap is reserved between the outer peripheral surface of the elastomer and the inner wall of the faucet to be tested.

[0038] An external air source is connected to the air inlet pipe 501 through the air inlet hose 8. A rubber sealing ring is installed where the air inlet hose 8 passes through the side wall of the test water tank 2 to prevent water leakage.

[0039] The clamping assembly also includes a guide rail 505 fixed on the test fixture 4, the length of which is perpendicular to the axis of the air intake pipe 501. A slider 506 is mounted on the guide rail 505. The slider 506 is slidably connected to the guide rail 505 by a dovetail groove or other means (such as an I-beam groove). A translation cam 507 is welded to the top of the slider 506. The profile of the translation cam 507 is a gradually tapered slope.

[0040] A driven shaft 508 is fixed to the outside of the pressure tube 502. A guide wheel 509 is mounted on the end of the driven shaft 508 via a bearing. The guide wheel 509 rolls against the upper surface of the translation cam 507. Multiple translation cams 507 on the same guide rail 505 are connected in series via a rigid connecting rod 6. The two ends of the connecting rod 6 are welded and fixed to the sides of adjacent translation cams 507. A second telescopic cylinder 7 is fixed on the test frame 4. Its piston rod is hinged to the side of the translation cam 507 located at the end via a pin. When the second telescopic cylinder 7 is activated, it pushes all the translation cams 507 on the same guide rail 505 to slide synchronously along the guide rail 505 via the connecting rod 6.

[0041] The test water tank 2 is equipped with an inlet pipe 9 and a drain pipe 10. Solenoid valves or manual valves are installed on the inlet pipe 9 and drain pipe 10 respectively, which can automatically control the water inlet and outlet volume. An overflow hole 12 is opened on the upper side wall of the test water tank 2, which is connected to an overflow tank 11 via a pipe. The overflow pipe 13 at the top of the overflow tank 11 is used to discharge water exceeding the set water level, ensuring a constant water level during the test. Guide frames 14 are vertically fixed on both sides of the support frame 1. Guide wheels 15 are installed on the sides of the test frame 4. The wheel surfaces of the guide wheels 15 roll in contact with the guide rails 505 of the guide frames 14, ensuring the verticality of the test frame 4 during lifting and lowering. Support wheels 17 are installed on the sides of the test frame 4 via support rods 16. The rubber wheel surfaces of the support wheels 17 fit against the inner edge of the test water tank 2, further improving the stability of the device.

[0042] Working principle: During the use of this utility model,

[0043] The faucet to be tested (valve closed) is fitted onto the end of the air inlet pipe 501, aligning the inner cavity of the faucet with the air inlet pipe 501. The second telescopic cylinder 7 is activated, its piston rod extending and pushing the end translation cam 507 to slide along the guide rail 505. All translation cams 507 on the same guide rail 505 move synchronously via the rigid connecting rod 6. The gradually changing inclined profile of the translation cam 507 acts on the guide wheel 509, driving the driven shaft 508 and the pressurizing pipe 502 to slide along the axis of the air inlet pipe 501 towards the annular flange 503. The pressurizing pipe 502 compresses the annular elastic body 504, causing it to expand radially and tightly fit against the inner wall of the faucet, forming a seal (the undercut on the elastic body engages with the annular groove to prevent displacement). At this time, the anti-rotation device (such as grooves and protrusions) between the pressurizing pipe 502 and the air inlet pipe 501 restricts the rotation of the pressurizing pipe 502, ensuring a uniform seal.

[0044] After sealing, the piston rod of the first telescopic cylinder 3 descends, driving the test frame 4 smoothly into the test water tank 2. The test water tank 2 has been pre-filled with water through the inlet pipe 9 (controlled by a solenoid valve), and the water level is maintained constant by the overflow hole 12 and the overflow tank 11. The guide wheel 15 rolls along the guide rail 505 of the guide frame 14, and the support wheel 17 fits against the edge of the test water tank 2, ensuring that the test frame 4 descends vertically and remains in a stable position.

[0045] After the test frame 4 is fully submerged in water, compressed air (pressure set according to the test standard) is introduced into the air inlet pipe 501 through the external air source via the air inlet hose 8. If there is a leak in the faucet, air will escape from the gap and form bubbles in the water. The operator can determine the location and severity of the leak by observing the position, size, and frequency of the bubbles. The rubber sealing ring at the connection between the air inlet pipe 501 and the side wall of the test water tank 2 prevents external gas leakage and ensures the accuracy of the test.

[0046] After the test is completed, the piston rod of the first telescopic cylinder 3 rises, moving the test frame 4 out of the test water tank 2. The piston rod of the second telescopic cylinder 7 retracts, pulling the translation cam 507 to slide in the opposite direction. The pressure pipe 502 moves away from the annular flange 503 along with the driven shaft 508, and the annular elastic body 504 returns to its original shape and separates from the inner wall of the faucet. The operator removes the faucet, completing one test cycle. The solenoid valve of the drain pipe 10 opens, draining the water from the test water tank 2, preparing for the next test.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A faucet leakage testing device, comprising a support frame (1), wherein a test water tank (2) and a first telescopic cylinder (3) are disposed on the support frame (1), characterized in that: A test frame (4) is fixedly installed on the sliding end of the first telescopic cylinder (3). The test frame (4) can enter or move out of the test water tank (2) under the drive of the first telescopic cylinder (3). The test frame (4) is provided with several clamping components, which are used to clamp the inner wall of the faucet to be tested; The clamping assembly includes an air inlet pipe (501) fixedly mounted on the test frame (4), the air inlet pipe (501) passing through the test frame (4), a pressure tube (502) that can slide along its axis is sleeved on the air inlet pipe (501), an annular flange (503) is fixedly mounted at the end of the air inlet pipe (501), and an annular elastomer (504) is provided between the pressure tube (502) and the annular flange (503), the elastomer is sleeved on the outside of the air inlet pipe (501); when the pressure tube (502) moves toward the annular flange (503), the elastomer is axially compressed and radially expanded, thereby making it fit tightly against the inner wall of the faucet.

2. The faucet leakage testing device according to claim 1, characterized in that: The clamping assembly also includes a guide rail (505) fixedly mounted on the test frame (4). Several sliders (506) are slidably mounted on the guide rail (505). A translation cam (507) is fixedly mounted on the slider (506). A driven shaft (508) is fixedly mounted on the pressurization tube (502). The driven shaft (508) cooperates with the translation cam (507). When the translation cam (507) slides along the guide rail (505), the driven shaft (508) moves axially along the intake tube (501) under the action of the contour of the translation cam (507).

3. The faucet leakage testing device according to claim 2, characterized in that: Several translation cams (507) on the same guide rail (505) are fixedly connected by a connecting rod (6).

4. The faucet leakage testing device according to claim 3, characterized in that: The test frame (4) is fixedly equipped with a second telescopic cylinder (7). The movable end of the second telescopic cylinder (7) is fixedly connected to one of the translation cams (507). Through the connecting rod (6), all translation cams (507) on the same guide rail (505) slide synchronously.

5. A faucet leakage testing device according to claim 4, characterized in that: A guide wheel (509) is rotatably mounted on the driven shaft (508), and the guide wheel (509) is in contact with the translation cam (507).

6. A faucet leakage testing device according to claim 2, characterized in that: One end of the air inlet pipe (501) is fixedly provided with an air inlet hose (8), which passes through the test water tank (2) and is connected to an external air source.

7. A faucet leakage testing device according to claim 1, characterized in that: The test water tank (2) is fixedly connected to an inlet pipe (9) and a drain pipe (10).

8. A faucet leakage testing device according to claim 2, characterized in that: An overflow tank (11) is fixedly installed on one side of the test water tank (2). The overflow tank (11) is connected to the test water tank (2) through an overflow hole (12). An overflow pipe (13) is fixedly connected to the overflow tank (11).

9. A faucet leakage testing device according to claim 1, characterized in that: A guide frame (14) is fixedly installed on the support frame (1), and a number of guide wheels (15) are rotatably installed on the test frame (4), with the guide wheels (15) in contact with the guide frame (14); A support rod (16) is fixedly installed on the test frame (4), and a support wheel (17) is rotatably installed on the support rod (16). The support wheel (17) is in contact with the test water tank (2).

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