A testing device for a rubber water stop joint

Abstract

The present invention discloses a testing device for a rubber water stop joint, which relates to the technical field of rubber water stop joints; in order to improve the detection efficiency; specifically, it includes a base, a supporting part and a testing part for performing a pressure test on the main body of the water stop joint. The testing part includes: a bracket: which is fixed on the outer wall of the top of the base, and a piston cylinder is fixed on the outer wall of the top of the bracket, and a filling pipe and an adjusting pipe are respectively welded on the circumferential outer wall of the piston cylinder; a piston plate: which is movably connected to the inner wall of the circumferential wall of the piston cylinder. In the present invention, by providing a driving plate, the bending seat can be driven to rotate, so that the top of the main body of the water stop joint can be twisted by the rotation of the bending seat, so that the anti-twisting performance of the bending seat can be tested. At the same time, by using the first kidney-shaped hole, the circumferential movement of the driving plate can be converted into the linear movement of the ejector rod, and the ejector rod can be used to drive the piston plate to move downward, so as to test the pressure resistance performance of the main body of the water stop joint.

Description

Technical Field

[0001] The present invention relates to the technical field of rubber water stop joints, and particularly relates to a testing device for rubber water stop joints. Background Art

[0002] In the prior art, a rubber water stop joint is a joint used for pipeline connection. Its main body is made of rubber, and it is also equipped with a fixing device for the flange. Due to the diversity of the shapes of rubber parts, the rubber joint has a large expansion and compensation ability in the pipeline system of process equipment. After the rubber water stop joint is processed and formed, it needs to be tested to determine whether it can meet the design requirements.

[0003] After retrieval, a patent with the Chinese patent application number 202020023101.1 discloses a rubber joint test device, which includes a chassis, a fixing mechanism, a stamping mechanism, a control box, and also includes a rotating mechanism and a bending mechanism. The fixing mechanism is arranged above the chassis, the rotating mechanism is arranged below the fixing mechanism, the stamping mechanism is arranged on one side of the fixing mechanism, the bending mechanism is arranged above the fixing mechanism, and the control box is connected to the front of the chassis by screws.

[0004] The above-mentioned rubber joint test device in the patent has the following deficiencies: During the process of testing the rubber water stop joint, although the rotating mechanism and the bending mechanism can be used to realize the quality inspection of the rubber water stop joint, the integration of this test device in structure is poor, and each mechanism is independent of each other, making the operation steps more cumbersome in the actual detection process, thus affecting the test efficiency. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies existing in the prior art, and to propose a testing device for rubber water stop joints.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A testing device for rubber water stop joints includes a base, a supporting part, and a testing part for performing pressure testing on the main body of the water stop joint. The testing part includes:

[0008] A bracket: It is fixed to the outer wall of the top of the base, and a piston cylinder is fixed to the outer wall of the top of the bracket. A filling pipe and an adjusting pipe are respectively welded to the circumferential outer wall of the piston cylinder.

[0009] A piston plate: It is movably connected to the circumferential inner wall of the piston cylinder, and a piston rod is fixed to the outer wall of the top of the piston plate by a pin.

[0010] A hose: It is fixed to the bottom of the piston cylinder, and a regulating valve is fixed to the bottom of the hose. A bending seat is fixed to the outer wall of the bottom of the regulating valve.

[0011] Support plate: It is fixed to the outer wall of the top of the base, and the inner wall of the through hole opened on the surface of the support plate is movably connected with an installation column. One end of the installation column is fixed with a driving plate through a pin, and a waist-shaped hole one is opened on the surface of the driving plate;

[0012] Connecting column: One end of it is fixed to the circumferential outer wall of the bending seat, and the end of the connecting column away from the bending seat is movably connected to the outer wall of one side of the driving plate;

[0013] Ejector rod: Its outer diameter and the inner diameter of the waist-shaped hole one are mutually adapted, and a limiting piece one is fixed to the circumferential outer wall of the ejector rod through a pin;

[0014] Pressing plate: It is fixed to the outer wall of the top of the piston rod, and the top of the ejector rod is welded to the bottom outer wall of the pressing plate.

[0015] Preferably: The supporting part includes an extension plate welded to the outer wall of the support plate and a guiding rod movably connected to the inner wall of the through hole opened on the surface of the extension plate. A top plate is welded to the bottom outer wall of the guiding rod, and a clamping component is fixed to the top outer wall of the guiding rod.

[0016] Preferably: A waist-shaped hole two is opened on the surface of the driving plate, a bent rod is movably connected to the inner wall of the waist-shaped hole two, and a limiting piece two is fixed to the circumferential outer wall of the bent rod through a pin.

[0017] Preferably: The clamping component includes a containing plate fixed to the top outer wall of the guiding rod through a pin and a sliding rod movably connected to the inner wall of the through hole opened on the surface of the containing plate, and the bottom outer wall of the bent rod is welded to the top outer wall of the containing plate.

[0018] Preferably: A clamping plate is fixed to the bottom outer wall of the sliding rod through a pin, and a spring is sleeved on the circumferential outer wall of the sliding rod.

[0019] Preferably: A clamping seat is rotatably connected to the top outer wall of the sliding rod, and a pressure gauge is embedded in the clamping seat.

[0020] Preferably: A vertical plate is fixed to the outer wall of the top of the base, and an electric telescopic rod is fixed to the outer wall of one side of the vertical plate.

[0021] On the basis of the foregoing solution: The output end of the electric telescopic rod is fixed with a rack through a pin, and a gear meshing with the rack is connected to the circumferential outer wall of the installation column through a key.

[0022] Preferably on the basis of the foregoing solution: A liquid outlet pipe is welded to the bottom outer wall of the clamping seat, and a liquid outlet valve is fixed to the bottom outer wall of the liquid outlet pipe.

[0023] Further preferably on the basis of the foregoing solution: A vertical plate is fixed to the outer wall of the top of the base through bolts, a guiding block is fixed to the outer wall of one side of the vertical plate through bolts, an arc-shaped groove is opened on the circumferential outer wall of the clamping seat, and the inner diameter of the arc-shaped groove is adapted to the outer diameter of the guiding block.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. By providing a driving plate, the bending seat can be driven to rotate, so that the top of the water stop joint body can be twisted by the rotation of the bending seat, thereby testing the anti-twisting performance of the bending seat. At the same time, by using the first waist-shaped hole, the circular motion of the driving plate can be converted into the linear motion of the ejector rod, and the ejector rod can be used to drive the piston plate to move downward, thereby testing the pressure resistance performance of the water stop joint body.

[0026] 2. By providing a filling pipe, liquid can be injected into the piston cylinder. The amount of liquid in the piston cylinder can be adjusted through the adjusting pipe, and the export of the liquid can be controlled by using a regulating valve, so that when the piston plate moves downward, the liquid can be pressurized.

[0027] 3. By providing a positioning seat, it can cooperate with the bending seat to limit the water stop joint body. The elastic force of the spring can ensure that the water stop joint body can be stably crimped between the bending seat and the positioning seat after installation.

[0028] 4. By providing the second waist-shaped hole, the circular motion of the driving plate can be converted into the linear motion of the bent rod. Thus, during the upward movement of the bent rod, the positioning seat can be indirectly lifted, further increasing the deformation degree of the water stop joint body and further testing the anti-twisting performance of the water stop joint body.

[0029] 5. By providing a liquid outlet valve, the liquid in the positioning seat can be discharged after the test is completed, so that the recycling of the liquid can be realized, and the periodic test of the water stop joint body can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is the overall structural schematic diagram of a test device for a rubber water stop joint proposed by the present invention;

[0031] Figure 2 is the rear structural schematic diagram of a test device for a rubber water stop joint proposed by the present invention;

[0032] Figure 3 is the overall structural schematic diagram of the support part of a test device for a rubber water stop joint proposed by the present invention;

[0033] Figure 4 is the top-view structural schematic diagram of the support part of a test device for a rubber water stop joint proposed by the present invention;

[0034] Figure 5 is the exploded structural schematic diagram of the joint installation of a test device for a rubber water stop joint proposed by the present invention;

[0035] Figure 6 Schematic diagram of the bending part structure of a test device for a rubber water stop joint proposed by the present invention;

[0036] Figure 7 Schematic diagram of the overall structure of the driving part of a test device for a rubber water stop joint proposed by the present invention;

[0037] Figure 8 Exploded structure diagram of the driving part of a test device for a rubber water stop joint proposed by the present invention;

[0038] Figure 9 Schematic diagram of the screwing part structure of a test device for a rubber water stop joint proposed by the present invention.

[0039] In the figure: 1 - base, 2 - vertical plate, 3 - ejector rod, 4 - pressing plate, 5 - piston cylinder, 6 - clamping seat, 7 - support plate, 8 - top plate, 9 - bracket, 10 - electric telescopic rod, 11 - sliding rod, 12 - accommodating plate, 13 - spring, 14 - guiding rod, 15 - liquid outlet valve, 16 - liquid outlet pipe, 17 - clamping plate, 18 - pressure gauge, 19 - extension plate, 20 - connecting column, 21 - bending seat, 22 - water stop joint main body, 23 - piston plate, 24 - piston rod, 25 - hose, 26 - regulating valve, 27 - filling pipe, 28 - regulating pipe, 29 - gear, 30 - rack, 31 - bent rod, 32 - limiting piece one, 33 - waist-shaped hole one, 34 - driving plate, 35 - waist-shaped hole two, 36 - mounting column, 37 - limiting piece two, 38 - guiding block, 39 - vertical plate, 40 - arc-shaped groove. Specific embodiments

[0040] The technical solutions of this patent will be further described in detail below in conjunction with specific embodiments.

[0041] The embodiments of this patent are described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain this patent and should not be construed as a limitation of this patent.

[0042] In the description of this patent, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this patent.

[0043] In the description of this patent, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "linkage", and "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0044] Embodiment 1:

[0045] A testing device for a rubber water stop joint, as Figures 1-8 shown, comprising a base 1, a support portion, and a testing portion for performing a pressure test on the water stop joint body 22. The testing portion includes:

[0046] Bracket 9: It is fixed to the outer wall of the top of the base 1 by bolts, and a piston cylinder 5 is fixed to the outer wall of the top of the bracket 9 by bolts. A filling pipe 27 and an adjusting pipe 28 are respectively welded to the circumferential outer wall of the piston cylinder 5;

[0047] Piston plate 23: It is slidably connected to the inner wall of the circumference of the piston cylinder 5, and a piston rod 24 is fixed to the outer wall of the top of the piston plate 23 by a pin;

[0048] Hose 25: It is fixed to the bottom of the piston cylinder 5 by bolts, and a regulating valve 26 is fixed to the bottom of the hose 25 by bolts. A bent seat 21 is fixed to the outer wall of the bottom of the regulating valve 26 by bolts;

[0049] Support plate 7: It is fixed to the outer wall of the top of the base 1 by bolts, and a mounting post 36 is rotatably connected to the inner wall of the through hole formed on the surface of the support plate 7. One end of the mounting post 36 is fixed to a driving plate 34 by a pin, and a first kidney-shaped hole 33 is formed on the surface of the driving plate 34;

[0050] Connecting post 20: One end of it is fixed to the circumferential outer wall of the bent seat 21 by bolts, and the end of the connecting post 20 away from the bent seat 21 is rotatably connected to the outer wall of one side of the driving plate 34;

[0051] Ejector rod 3: The outer diameter of it is mutually adapted to the inner diameter of the first kidney-shaped hole 33, and a first limiting piece 32 is fixed to the circumferential outer wall of the ejector rod 3 by a pin;

[0052] Pressing plate 4: It is fixed to the outer wall of the top of the piston rod 24 by bolts, and the top of the ejector rod 3 is welded to the outer wall of the bottom of the pressing plate 4;

[0053] By providing a support portion, it can support the bottom of the water stop joint body 22. The inner diameter of the bent seat 21 is adapted to the outer diameter of the water stop joint body 22, so that the top of the water stop joint body 22 can be snapped into the inner surface of the bent seat 21 by means of bolt fixation. And a sealing gasket is filled on the inner surface of the bent seat 21, thereby improving the sealing performance between the water stop joint body 22 and the bent seat 21. By providing an installation post 36, it can drive the driving plate 34 to rotate, and then the bent seat 21 can drive the bent seat 21 to rotate under the connection action of the connection post 20, so that the bent seat 21 can bend the top of the water stop joint body 22 to one side direction, causing the water stop joint body 22 to produce elastic deformation, thereby testing the anti-twisting performance of the water stop joint body 22;

[0054] At the same time, during the rotation of the driving plate 34, the waist-shaped hole one 33 can convert the circular motion of the driving plate 34 into the linear motion of the ejector rod 3, so that the ejector rod 3 moves downward along the vertical direction under the limiting action of the limiting piece one 32. During this process, the piston rod 24 can slide along the inner wall of the circumference of the piston cylinder 5 under the connection action of the pressing plate 4. The liquid injection pipe 27 can be used to inject liquid such as clear water into the piston cylinder 5. Thus, during the downward sliding of the piston plate 23, by squeezing the liquid, pressure is generated on the liquid, thereby testing the pressure resistance performance of the water stop joint body 22 during actual use. By providing a regulating valve 26, the export of the liquid can be controlled. When the injection amount of the liquid is large, the excess liquid can be discharged in time by using the regulating pipe 28. Covers are provided at the top of the liquid injection pipe 27 and the bottom of the regulating pipe 28, so that after the liquid is introduced and exported, the liquid injection pipe 27 and the regulating pipe 28 can be effectively sealed, thus avoiding liquid leakage during the pressurization process;

[0055] During the test, on the one hand, the water stop joint body 22 has elastic deformation after being bent. At the same time, on the other hand, the piston plate 23 and the liquid can be used to test the pressure resistance of the water stop joint body 22, so that the test can be carried out under the action of two different forces on the water stop joint body 22, making the test result more persuasive.

[0056] The support portion includes an extension plate 19 welded to the outer wall of the support plate 7 and a guide rod 14 slidably connected to the inner wall of the through hole formed on the surface of the extension plate 19. A top plate 8 is welded to the outer wall of the bottom of the guide rod 14. A clamping component is fixed to the outer wall of the top of the guide rod 14. A waist-shaped hole two 35 is formed on the surface of the driving plate 34. A bent rod 31 is slidably connected to the inner wall of the waist-shaped hole two 35, and the outer diameter of the bent rod 31 is adapted to the inner diameter of the waist-shaped hole two 35. A limiting piece two 37 is fixed to the outer wall of the circumference of the bent rod 31 by a pin;

[0057] After the bottom of the water stop joint main body 22 is fixed by bolts through the setting of the clamping component, it is further limited by a clamping method. By setting the oblong hole two 35, when the driving plate 34 rotates, the circular motion of the driving plate 34 can be converted into the linear motion of the bent rod 31, so that the bent rod 31 can move upward along the vertical direction under the limiting action of the limiting piece two 37. The moving paths of the bent rod 31 and the ejector rod 3 are opposite, so that the top plate 8 can move upward under the jacking action of the bent rod 31, thereby applying pressure to the bottom of the water stop joint main body 22. This can further ensure the sealing between the top of the water stop joint main body 22 and the bending seat 21, as well as the sealing between the clamping component and the bottom of the water stop joint main body 22. At the same time, it can further increase the deformation degree of the water stop joint main body 22, so as to conduct a pressure test on the water stop joint main body 22 under the condition of extreme distortion of the water stop joint main body 22.

[0058] The clamping component includes a receiving plate 12 fixed to the outer wall of the top of the guide rod 14 by a pin and a sliding rod 11 slidably connected to the inner wall of the through hole formed on the surface of the receiving plate 12. The outer wall of the bottom of the bent rod 31 is welded to the outer wall of the top of the receiving plate 12. A clamping plate 17 is fixed to the outer wall of the bottom of the sliding rod 11 by a pin. A spring 13 is sleeved on the circumferential outer wall of the sliding rod 11, and both ends of the spring 13 are respectively fixed to the inner wall of the top of the receiving plate 12 and the outer wall of the top of the clamping plate 17 by pins. A clamping seat 6 is rotatably connected to the outer wall of the top of the sliding rod 11, and a pressure gauge 18 is embedded in the clamping seat 6;

[0059] By setting the clamping seat 6, it can play a role in clamping the bottom of the water stop joint main body 22, so as to cooperate with the bending seat 21 to play a limiting role on the top and bottom of the water stop joint main body 22. The inside of the clamping seat 6 is communicated with the water stop joint main body 22, so that when a pressure test is carried out on the water stop joint main body 22, the pressure value can be monitored in real time by using the pressure gauge 18, thus ensuring the safety of the test. By setting the spring 13, before the water stop joint main body 22 is tested and needs to be installed, the elastic force of the spring 13 can be used to make the water stop joint main body 22 be safely and stably pressed between the bending seat 21 and the clamping seat 6. When the top plate 8 is jacked up by using the bent rod 31, first, the spring 13 deforms under the pushing action of the receiving plate 12. When the top plate 8 moves to fit the outer wall of the bottom of the clamping plate 17, the top plate 8 can be used to jack up the sliding rod 11 and the clamping seat 6, so as to apply a driving force to the bottom of the water stop joint main body 22.

[0060] A vertical plate 2 is fixed to the outer wall of the top of the base 1 by bolts. An electric telescopic rod 10 is fixed to the outer wall of one side of the vertical plate 2 by bolts, and a rack 30 is fixed to the output end of the electric telescopic rod 10 by a pin. A gear 29 meshing with the rack 30 is connected to the circumferential outer wall of the mounting column 36 by a key;

[0061] By providing the electric telescopic rod 10, the rack 30 can be driven to move horizontally, so as to drive the gear 29 to rotate by using the rack 30, and thus the bending and pressure testing of the water stop joint body 22 can be realized.

[0062] When this embodiment is in use, when it is necessary to test the water stop joint body 22, first press down the clamping seat 6, so that the water stop joint body 22 is clamped between the bending seat 21 and the clamping seat 6 under the action of the elastic force of the spring 13. Then, a certain amount of liquid is injected into the piston cylinder 5 through the filling pipe 27. The electric telescopic rod 10 is used to drive the rack 30 to move horizontally, so that the gear 29 drives the driving plate 34 to rotate. During the rotation of the driving plate 34, the top of the water stop joint body 22 is bent by using the bending seat 21, so that the anti-twisting property of the water stop joint body 22 is tested after deformation. During this process, the regulating valve 26 is opened, so that the liquid in the piston cylinder 5 is introduced into the water stop joint body 22. By using the waist-shaped hole 1 33 and the waist-shaped hole 2 35, the ejector rod 3 can move downward and the bent rod 31 can move upward during the rotation of the driving plate 34, so that the piston plate 23 can extrude the liquid, and thus the pressure resistance performance of the water stop joint body 22 can be tested. The pressure gauge 18 is used to monitor the pressure value in real time. At the same time, the bent rod 31 is used to lift the top plate 8, so that the top plate 8 can indirectly push the clamping seat 6 upward, thereby further increasing the deformation amount of the water stop joint body 22. When the pressure gauge 18 reaches the set value, the water stop joint body 22 is removed, and the water stop joint body 22 is inspected by using the flaw detection equipment, so that the anti-twisting and pressure resistance performance of the water stop joint body 22 can be detected.

[0063] Embodiment 2:

[0064] A testing device for a rubber water stop joint, as Figure 3 shown. In order to facilitate the discharge of the liquid in the clamping seat 6; the following supplement is made on the basis of Embodiment 1 in this embodiment: a liquid outlet pipe 16 is welded to the outer wall of the bottom of the clamping seat 6, and a liquid outlet valve 15 is fixed to the outer wall of the bottom of the liquid outlet pipe 16 by bolts;

[0065] By providing the liquid outlet valve 15, the liquid in the clamping seat 6 can be discharged after the test is completed, so that the recycling of the liquid can be realized.

[0066] Embodiment 3:

[0067] A testing device for a rubber water stop joint, as Figure 9 shown. A vertical plate 39 is fixed to the outer wall of the top of the base 1 by bolts, a guiding block 38 is fixed to the outer wall of one side of the vertical plate 39 by bolts, an arc-shaped groove 40 is formed in the circumferential outer wall of the clamping seat 6, and the inner diameter of the arc-shaped groove 40 is adapted to the outer diameter of the guiding block 38;

[0068] By providing the guiding block 38, during the upward movement of the clamping seat 6, it can play a guiding role for the arc-shaped groove 40. Thus, while the clamping seat 6 moves upward, it can rotate under the adjustment of the guiding block 38 and the arc-shaped groove 40, thereby applying a screwing force to the water stop joint body 22, and further testing the anti-deformation ability of the water stop joint body 22 by screwing.

[0069] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A testing device for a rubber water stop joint, comprising a base (1), a supporting part, and a testing part for performing a pressure test on the water stop joint body (22), characterized in that, The test part includes: Bracket (9): It is fixed to the outer wall of the top of the base (1), and a piston cylinder (5) is fixed to the outer wall of the top of the bracket (9), and a filling pipe (27) and an adjusting pipe (28) are respectively welded to the circumferential outer wall of the piston cylinder (5); Piston plate (23): It is movably connected to the inner wall of the circumference of the piston cylinder (5), and a piston rod (24) is fixed to the outer wall of the top of the piston plate (23) by a pin; Hose (25): It is fixed to the bottom of the piston cylinder (5), and a regulating valve (26) is fixed to the bottom of the hose (25), and a bending seat (21) is fixed to the outer wall of the bottom of the regulating valve (26); Support plate (7): It is fixed to the outer wall of the top of the base (1), and a mounting column (36) is movably connected to the inner wall of the through hole opened on the surface of the support plate (7), and a driving plate (34) is fixed to one end of the mounting column (36) by a pin, and a waist-shaped hole one (33) is opened on the surface of the driving plate (34); Connecting column (20): One end of it is fixed to the circumferential outer wall of the bending seat (21), and the end of the connecting column (20) far from the bending seat (21) is movably connected to the outer wall of one side of the driving plate (34); Ejector rod (3): The outer diameter of it is adapted to the inner diameter of the waist-shaped hole one (33), and a limiting piece one (32) is fixed to the circumferential outer wall of the ejector rod (3) by a pin; Pressing plate (4): It is fixed to the outer wall of the top of the piston rod (24), and the top of the ejector rod (3) is welded to the outer wall of the bottom of the pressing plate (4); By arranging the mounting column (36), the driving plate (34) can be driven to rotate, and then the driving plate (34) can drive the bending seat (21) to rotate under the connection action of the connecting column (20), so that the top of the water stop joint body (22) can be bent to one side by using the bending seat (21); The circular motion of the driving plate (34) can be converted into the linear motion of the ejector rod (3) by using the waist-shaped hole one (33), so that the ejector rod (3) moves downward along the vertical direction under the limiting action of the limiting piece one (32).

2. The testing device for a rubber water stop joint according to claim 1, characterized in that, The support part includes an extension plate (19) welded to the outer wall of the support plate (7) and a guide rod (14) movably connected to the inner wall of the through hole opened on the surface of the extension plate (19), a top plate (8) is welded to the outer wall of the bottom of the guide rod (14), and a clamping component is fixed to the outer wall of the top of the guide rod (14).

3. The testing device for a rubber water stop joint according to claim 2, characterized in that, A waist-shaped hole two (35) is opened on the surface of the driving plate (34), a bent rod (31) is movably connected to the inner wall of the waist-shaped hole two (35), and a limiting piece two (37) is fixed to the circumferential outer wall of the bent rod (31) by a pin.

4. The testing device for a rubber water stop joint according to claim 3, characterized in that, The clamping component includes a receiving plate (12) fixed to the outer wall of the top of the guide rod (14) by a pin and a sliding rod (11) movably connected to the inner wall of the through hole opened on the surface of the receiving plate (12), and the bottom outer wall of the bent rod (31) is welded to the top outer wall of the receiving plate (12).

5. The testing device for a rubber water stop joint according to claim 4, characterized in that, A clamping plate (17) is fixed to the outer wall of the bottom of the sliding rod (11), and a spring (13) is sleeved on the circumferential outer wall of the sliding rod (11).

6. The testing device for a rubber water stop joint according to claim 5, characterized in that, The outer wall of the top of the sliding rod (11) is movably connected to a clamping seat (6), and a pressure gauge (18) is embedded in the clamping seat (6).

7. The testing device for a rubber water stop joint according to claim 6, characterized in that, A vertical plate (2) is fixedly mounted on the outer wall of the top of the base (1), and an electric telescopic rod (10) is fixedly mounted on the outer wall of one side of the vertical plate (2).

8. The testing device for a rubber water stop joint according to claim 7, characterized in that, The output end of the electric telescopic rod (10) is fixed with a rack (30) by a pin, and a gear (29) meshing with the rack (30) is connected to the outer wall of the circumference of the mounting column (36) by a key.

9. The testing device for a rubber water stop joint according to claim 8, characterized in that, A liquid outlet pipe (16) is welded to the outer wall of the bottom of the clamping seat (6), and a liquid outlet valve (15) is fixedly mounted on the outer wall of the bottom of the liquid outlet pipe (16).

10. The testing device for a rubber water stop joint according to claim 9, characterized in that, A vertical plate (39) is fixedly mounted on the outer wall of the top of the base (1) by bolts, a guiding block (38) is fixedly mounted on the outer wall of one side of the vertical plate (39) by bolts, an arc-shaped groove (40) is formed in the outer wall of the circumference of the clamping seat (6), and the inner diameter of the arc-shaped groove (40) is adapted to the outer diameter of the guiding block (38).

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