Static pressure test quick-change tool for welding hose joint core

Abstract

The utility model discloses a static pressure test quick-change tool for welding a hose joint core, which comprises a joint core and a test block, the center of the test block is provided with an axially through joint core hole, and the axial right end of the test block is fixedly connected with a sealing plate in a sealing manner. A vertically-through clamping block groove is formed in the position, close to the axial left end, of the testing block, the bottom of the testing block is fixedly connected with a supporting plate, the supporting plate seals the bottom of the clamping block groove, symmetrical clamping blocks are placed in the clamping block groove, the connector core is sleeved with the connector core hole in a matched mode and penetrates through the clamping blocks, and the tail of the connector core is sealed with the connector core hole in the radial direction. The static pressure testing device is simple in structure and convenient, rapid and efficient to operate, the testing block, the sealing plate and the adjusting unit are arranged, during static pressure testing, the connector core is sleeved with the connector core hole, the clamping block clamps or loosens the connector core through the adjusting unit, rapid assembly and disassembly of the connector core and the testing block are achieved, and the static pressure testing efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of static pressure testing of hose assemblies, and particularly relates to a quick-change tooling for static pressure testing for welding hose joint cores. Background Technique

[0002] Hose assemblies are used to connect hydraulic components such as hydraulic pumps, hydraulic valves, and hydraulic cylinders to transmit high-pressure liquids or gases, and are widely used in fields such as construction machinery, agricultural machinery, and aerospace. Hose assemblies are usually formed by a rubber hose and fittings crimped at both ends. As a manufacturer of crimped fittings, among them, welded hose fittings need to be subjected to static pressure testing after welding to ensure that the welded joints can withstand the expected working pressure and load under working conditions. When performing static pressure testing on a welded hose joint core, usually the tail of the joint core is sealed, the head of the joint core is connected to a static pressure device through a nut and a transition joint, the inside of the joint core is pressurized by water pressure, after the pressure reaches the test pressure, the pressurization is stopped, and after meeting the test time, it is observed through a pressure gauge whether there is a leakage phenomenon in the joint core to judge whether the joint core is qualified. However, the existing static pressure testing device has defects such as inconvenient installation and disassembly of the joint core and low testing efficiency, and when the static pressure testing pressure is relatively high, it is difficult to seal the tail of the joint core, and the testing effect is not good. Content of the Utility Model

[0003] The purpose of the utility model is to provide a quick-change tooling for static pressure testing for welding hose joint cores to solve the problems in the above-mentioned background technique that the existing static pressure testing device has inconvenient installation and disassembly of the joint core, low testing efficiency, and when the static pressure testing pressure is relatively high, it is difficult to seal the tail of the joint core, and the testing effect is not good.

[0004] To achieve the above purpose, the utility model provides the following technical solution:

[0005] A quick-change tooling for static pressure testing for welding hose joint cores, including a joint core and a test block. An axially penetrating joint core hole is opened at the central position of the test block. A sealing plate is hermetically and fixedly connected to the right end of the test block in the axial direction. A vertically penetrating clamping block groove is opened at the left end of the test block close to the axis. A support plate is fixedly connected to the bottom of the test block and the support plate closes the bottom of the clamping block groove. Symmetrical clamping blocks are placed in the clamping block groove. The joint core is sleeved in the joint core hole in a matching manner, passes through the clamping blocks, and the tail is radially sealed with the joint core hole. The tail of the joint core is closely attached to the sealing plate. The test block is provided with an adjusting unit for clamping or loosening the joint core through the clamping blocks.

[0006] Further, four first screw holes are arranged in a linear array at the right end of the axis of the test block. A groove is arranged on the inner end face of the sealing plate. A first sealing ring is installed in the groove. The first sealing ring is in close contact with the right end face of the test block in the axial direction. The sealing plate presses the first sealing ring and is fixedly connected with the test block through the first screw holes and first hexagon socket head cap screws.

[0007] Further, second screw holes are arranged on the bottom surface of the test block. The support plate is provided with a stepped hole. The support plate is fixedly connected with the test block through the second screw holes, the stepped hole and second hexagon socket head cap screws. The head of the second hexagon socket head cap screw is hidden in the large hole of the stepped hole.

[0008] Further, a sealing ring groove is arranged at the right end of the axis of the joint core hole. A second sealing ring for radial sealing of the joint core is installed in the sealing ring groove.

[0009] Further, a semi-circular hole matching the outer diameter of the joint core is arranged on the clamping block. A convex groove is arranged in the semi-circular hole. Convex blocks are symmetrically and fixedly arranged on the upper and lower sides of the clamping block. The convex blocks face the opening of the semi-circular hole. The clamping blocks are placed in pairs in the clamping block grooves and the convex blocks face each other.

[0010] Further, the adjusting unit includes a spring and an adjusting bolt. Third screw holes are arranged at the front and rear ends of the test block. The third screw holes communicate with the clamping block grooves. The adjusting bolt is threadedly connected with the third screw hole and abuts against the clamping block. The spring is sleeved on two opposite convex blocks.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The structure of the utility model is simple, the operation is convenient, fast and efficient. The test block, the sealing plate and the adjusting unit are provided. The joint core hole and the clamping block groove are arranged on the test block. Symmetrical clamping blocks are placed in the clamping block groove. The sealing plate plugs the right end of the joint core hole and performs end face positioning on the tail of the joint core, so that the convex groove of the clamping block just catches the concave groove of the joint core, so as to fix the joint core by the clamping block. During the hydrostatic test, the joint core is sleeved in the joint core hole and the clamping block clamps or loosens the joint core through the adjusting unit, realizing the rapid installation and disassembly of the joint core and the test block, and greatly improving the hydrostatic test efficiency.

[0013] 2. The sealing plate is provided with a first sealing ring. The first sealing ring realizes the sealing between the test block and the sealing plate, preventing the pressure medium from leaking from the joint surface of the test block and the sealing plate. A second sealing ring is arranged at the right end of the axis of the joint core hole of the test block. The second sealing ring realizes the sealing between the tail of the joint core and the joint core hole, preventing the pressure medium from entering the joint core hole from the tail end of the inner hole of the joint core and causing leakage. Through the arrangement of the first sealing ring and the second sealing ring, the sealing performance of the tail of the joint core under high pressure is improved, and the hydrostatic test effect is ensured. Description of the Drawings

[0014] Figure 1 Three-dimensional schematic diagram of the structure of the present utility model (the pallet is facing down);

[0015] Figure 2 Three-dimensional schematic diagram of the structure of the present utility model (the pallet is facing up);

[0016] Figure 3 Cross-sectional view of the structure of the present utility model;

[0017] Figure 4 Schematic diagram of the structure of the test block;

[0018] Figure 5 Schematic diagram of the structure of the clamping block;

[0019] Figure 6 Schematic diagram of the structure of the joint core;

[0020] In the figure: 1 - joint core, 101 - tapered joint, 102 - connecting pipe, 103 - groove, 2 - test block, 201 - joint core hole, 202 - clamping block groove, 203 - first screw hole, 204 - second screw hole, 205 - third screw hole, 206 - sealing ring groove, 3 - sealing plate, 4 - pallet, 5 - clamping block, 501 - convex block, 502 - semi-circular hole, 503 - convex groove, 6 - spring, 7 - first hexagon socket head bolt, 8 - second hexagon socket head bolt, 9 - adjusting bolt, 10 - first sealing ring, 11 - second sealing ring. Detailed implementation manners

[0021] The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Please refer to Figures 1-6 , an embodiment provided by the present utility model:

[0023] A quick-change tooling for static pressure testing of a welded hose joint core, including a joint core 1 and a test block 2. The joint core 1 is welded by a tapered joint 101 and a connecting pipe 102. The end of the connecting pipe 102 is the tail of the joint core 1. The connecting pipe 102 is provided with a groove 103 for crimping with a sleeve. A joint core hole 201 that penetrates axially is opened at the central position of the test block 2. A sealing plate 3 is fixedly connected to the right end of the test block 2 in an axial direction in a sealed manner. A clamping block groove 202 that penetrates vertically is opened near the left end of the test block 2 in an axial direction. A support plate 4 is fixedly connected to the bottom of the test block 2, and the support plate 4 closes the bottom of the clamping block groove 202 so as to support the clamping block 5. Symmetrical clamping blocks 5 are placed in the clamping block groove 202. The joint core 1 is sleeved in the joint core hole 201 in a matching manner, passes through the clamping block 5, and the tail is radially sealed with the joint core hole 201. The tail of the joint core 1 abuts against the sealing plate 3. The sealing plate 3 is used for positioning the tail of the joint core 1, so that the convex groove 503 of the clamping block 5 just catches at the groove 103 of the joint core 1, so as to fix the joint core 1 by the clamping block 5. The test block 2 is provided with an adjustment unit for clamping or loosening the joint core 1 through the clamping block 5.

[0024] Among them, four first screw holes 203 distributed in a linear array are opened at the right end of the test block 2 in an axial direction. A groove is opened on the inner end face of the sealing plate 3, and a first sealing ring 10 is installed in the groove. The first sealing ring 10 abuts against the right end face of the test block 2 in an axial direction. The sealing plate 3 presses the first sealing ring 10 and is fixedly connected to the test block 2 through the first screw holes 203 and first hexagon socket head cap screws 7. The first sealing ring 10 is used for sealing between the tail of the joint core 1 and the sealing plate 3 to prevent the pressure medium from leaking from the joint surface of the test block 2 and the sealing plate 3.

[0025] Among them, a second screw hole 204 is opened on the bottom surface of the test block 2. The support plate 4 is provided with a stepped hole. The support plate 4 is fixedly connected to the test block 2 through the second screw hole 204, the stepped hole, and a second hexagon socket head cap screw 8. The head of the second hexagon socket head cap screw 8 is hidden in the large hole of the stepped hole, so that the support plate 4 can be placed flat on the test bench.

[0026] Among them, a sealing ring groove 206 is opened at the right end of the joint core hole 201 in an axial direction. A second sealing ring 11 for radial sealing of the joint core 1 is installed in the sealing ring groove 206. The second sealing ring 11 is used for sealing between the tail of the joint core 1 and the joint core hole 201 to prevent the pressure medium from entering the joint core hole 201 from the tail end of the inner hole of the joint core 1 and causing leakage.

[0027] Among them, the clamping block 5 is provided with a semi-circular hole 502 that matches the outer diameter of the joint core 1. The semi-circular hole 502 is provided with a convex groove 503. The convex groove 503 is used for catching at the groove 103 of the joint core 1 to fix the joint core 1. The clamping block 5 is symmetrically and fixedly provided with convex blocks 501 up and down. The convex blocks 501 face the opening of the semi-circular hole 502. The clamping blocks 5 are placed in pairs in the clamping block groove 202 and the convex blocks 501 face each other.

[0028] Among them, the adjusting unit includes a spring 6 and an adjusting bolt 9. Third screw holes 205 are provided at the front and rear ends of the test block 2, and the third screw holes 205 communicate with the clamping block grooves 202. The adjusting bolt 9 is threadedly connected to the third screw holes 205 and abuts against the clamping block 5, so that the convex groove 503 of the clamping block 5 can be stuck in the concave groove 103 without loosening. The spring 6 is sleeved on two opposite convex blocks 501. When the adjusting bolt 9 is loosened, the two clamping blocks 5 move outward under the action of the spring 6, releasing the clamping of the connector core 1 so as to take out the connector core 1.

[0029] Working principle of the present utility model: During hydrostatic testing, the tail of the connector core 1 is inserted into the connector core hole 201 of the test block 2 until the tail of the connector core 1 abuts against the sealing plate 3. Then, the adjusting bolts 9 on both sides are tightened to push the clamping blocks 5, so that the convex groove 503 of the clamping block 5 is stuck at the concave groove 103 of the connector core 1 to clamp and fix the connector core 1. Then, the taper joint 101 is directly connected to the hydrostatic testing equipment through a nut and a transition joint, and the connector core 1 can be subjected to a pressure test. After the pressure test is completed, the adjusting bolts 9 on both sides are loosened, and the spring 6 pushes the clamping blocks 5 to both sides, releasing the clamping of the connector core 1, taking out the connector core 1, and continuing the hydrostatic testing of another connector core 1.

[0030] The structure of the present utility model is simple, and the operation is convenient, fast, and efficient. It is provided with a test block 2, a sealing plate 3, and an adjusting unit. The test block 2 is provided with a connector core hole 201 and a clamping block groove 202. Symmetric clamping blocks 5 are placed in the clamping block groove 202. The sealing plate 3 seals the right end of the connector core hole 201 and performs end face positioning on the tail of the connector core 1, so that the convex groove 503 of the clamping block 5 is exactly stuck at the concave groove 103 of the connector core 1, so that the clamping block 5 can fix the connector core 1. During hydrostatic testing, the connector core 1 is sleeved in the connector core hole 201, and the clamping block 5 clamps or loosens the connector core 1 through the adjusting unit, realizing the rapid installation and disassembly of the connector core 1 and the test block 2, and greatly improving the hydrostatic testing efficiency.

[0031] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A quick-change tool for static pressure testing of a welding hose joint core, comprising a joint core (1) and a test block (2), characterized in that: The test block (2) is provided with an axially through-going joint core hole (201) at the center position, the test block (2) is sealed and fixedly connected to a sealing plate (3) at the axial right end, the test block (2) is provided with a vertically through-going clamping block groove (202) near the axial left end, the test block (2) is fixedly connected to a supporting plate (4) at the bottom, and the supporting plate (4) closes the bottom of the clamping block groove (202), symmetrical clamping blocks (5) are placed in the clamping block groove (202), the joint core (1) is matched and sleeved in the joint core hole (201) and passes through the clamping block (5), and the tail is radially sealed with the joint core hole (201), the tail of the joint core (1) is tightly attached to the sealing plate (3), and the test block (2) is provided with an adjustment unit for clamping or loosening the joint core (1) through the clamping block (5).

2. The quick-change tool for static pressure testing of welding hose joint core according to claim 1, characterized in that: The axial right end of the test block (2) is provided with four first screw holes (203) distributed in a linear array, the inner end surface of the sealing plate (3) is provided with a groove, a first sealing ring (10) is installed in the groove, the first sealing ring (10) is tightly attached to the axial right end surface of the test block (2), the sealing plate (3) presses the first sealing ring (10) and is fixedly connected to the test block (2) via the first screw hole (203) and the first hexagon socket bolt (7).

3. The quick-change tool for static pressure testing of welding hose joint core according to claim 1, characterized in that: The bottom surface of the test block (2) is provided with a second screw hole (204), the support plate (4) is provided with a stepped hole, the support plate (4) is fixedly connected to the test block (2) via the second screw hole (204), the stepped hole, and the second hexagon socket bolt (8), the head of the second hexagon socket bolt (8) being hidden in the large hole of the stepped hole.

4. The quick-change tool for static pressure testing of welding hose joint core according to claim 1, characterized in that: A sealing ring groove (206) is provided at the axial right end of the joint core hole (201), and a second sealing ring (11) for radial sealing of the joint core (1) is installed in the sealing ring groove (206).

5. The quick-change tool for static pressure testing of welding hose joint core according to claim 1, characterized in that: The clamping block (5) is provided with a semicircular hole (502) matching the outer diameter of the joint core (1); the semicircular hole (502) is provided with a convex groove (503); the clamping block (5) is symmetrically fixed with protrusions (501) above and below, the protrusions (501) face the opening of the semicircular hole (502); the clamping blocks (5) are placed in pairs in the clamping block grooves (202) with the protrusions (501) facing each other.

6. The quick-change tool for static pressure testing of welding hose joint core according to claim 5, characterized in that: The adjustment unit comprises a spring (6) and an adjustment bolt (9); the test block (2) is provided with third screw holes (205) at both ends thereof; the third screw holes (205) are connected to the clamping block groove (202); the adjustment bolt (9) is threadedly connected to the third screw hole (205) and supports the clamping block (5); and the spring (6) is sleeved on two opposite protrusions (501).

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