High-pressure-resistant quick connection structure and detection device thereof

Abstract

The utility model discloses a high-pressure-resistant rapid connection structure and a detection device thereof, and the structure comprises a lining which is disposed on the inner side of the end part of a test copper pipe and supports the inner wall of the test copper pipe; the locking connector is arranged on the outer side of the test copper pipe in a sleeving mode, and the locking connector is of a hollow structure with one open end; and the locking mechanism extends into the position between the locking connector and the test copper pipe, and the locking mechanism and the locking connector are fixedly connected and tightly press the test copper pipe, so that the locking mechanism and the test copper pipe are matched in a sealing mode. According to the utility model, the sealing performance is ensured while the test copper pipe is clamped, the lining is arranged to prevent the test copper pipe from deformation when the test copper pipe is clamped, the installation is convenient, and the service life of the test copper pipe is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pipeline connection especially, a kind of high-pressure-resistant quick connection structure and its detection device. BACKGROUND

[0002] On prior art, since the end of copper pipe is straight and the side wall is smooth, when connecting copper pipe with other components, generally fixed directly by welding or makes copper pipe deform fixed by clamping, leading to copper pipe cannot be disassembled and reused or disassembled copper pipe also cannot be used after deformation, and welding requires higher skill of worker, slightly inattentive and prone to leakage problem, while high temperature of welding causes organizational structure change to connecting pipeline, affect the stability of copper pipe test result. SUMMARY

[0003] In view of the above problems existing in the existing pipe cap pressure test, the present application aims to provide a high-pressure-resistant quick connection structure and its detection device, locking structure is provided on test copper pipe, which facilitates installation and ensures connection strength and stability.

[0004] The specific technical solutions are as follows:

[0005] A high-pressure-resistant quick connection structure, comprising:

[0006] an inner liner, the inner liner is arranged on the inner side of the end of the test copper pipe, and supports the inner wall of the test copper pipe;

[0007] a locking connector, the locking connector is sleeved on the outer side of the test copper pipe, and the locking connector is a hollow structure with one end open;

[0008] a locking mechanism, the locking mechanism extends between the locking connector and the test copper pipe, and the locking mechanism is in fixed connection with the locking connector, and the test copper pipe is pressed tightly, so that the locking mechanism and the test copper pipe are sealed and matched.

[0009] The high-pressure-resistant quick connection structure described above, wherein the part of the locking mechanism extending into the locking connector corresponds to the inner liner along the radial direction of the test copper pipe;

[0010] The length of the part of the locking mechanism extending into the locking connector is not greater than the length of the inner liner.

[0011] The high-pressure-resistant quick connection structure described above, wherein the locking mechanism comprises: a fixed connector, the fixed connector extends between the locking connector and the test copper pipe, the fixed connector is in fixed connection with the locking connector, and the test copper pipe is pressed tightly, so that the fixed connector and the test copper pipe are sealed and matched.

[0012] The high-pressure resistant quick connection structure, wherein the locking mechanism further comprises a wedge assembly arranged between the locking connector and the test copper pipe.

[0013] The fixed connector is fixedly connected with the inner wall of the locking connector, so that the wedge assembly is clamped between the test copper pipe and the wedge assembly, and the fixed connector is sealingly matched with the test copper pipe.

[0014] The high-pressure resistant quick connection structure, wherein the wedge assembly is operatively abutted against the outer wall of the test copper pipe, so that the wedge assembly is deformed or displaced to reduce the inner diameter of the wedge assembly, thereby clamping the test copper pipe.

[0015] The high-pressure resistant quick connection structure, wherein the wedge assembly is arranged between the other end of the locking connector and the fixed connector.

[0016] The wedge assembly has a compression inclined surface, and the end of the fixed connector has a compression inclined surface abutting against the compression inclined surface, so that the wedge assembly is deformed or displaced to reduce the inner diameter of the wedge assembly, and the wedge assembly clamps the test copper pipe.

[0017] The high-pressure resistant quick connection structure, wherein the wedge assembly comprises at least two wedge blocks arranged between the locking connector and the test copper pipe and distributed along the circumference of the test copper pipe, and each wedge block has an inclined surface, and a plurality of the inclined surfaces form the compression inclined surface.

[0018] The fixed connector abuts against the plurality of wedge blocks, and the compression inclined surface abuts against the plurality of inclined surfaces, so that the two wedge blocks clamp the test copper pipe.

[0019] The high-pressure resistant quick connection structure, wherein the inner wall of the wedge assembly is provided with at least one ring groove in the axial direction thereof.

[0020] The inner wall of each wedge block is provided with at least one clamping groove in the circumferential direction of the test copper pipe, and a plurality of the clamping grooves of the wedge blocks form the ring groove.

[0021] The high-pressure resistant quick connection structure, wherein at least one sealing ring is arranged between the fixed connector and the test copper pipe.

[0022] The inner wall of the fixed connector is provided with at least one mounting groove, and the sealing ring is mounted in the mounting groove and sealingly matched with the test copper pipe.

[0023] The high-pressure resistant quick connection structure, wherein the locking connector has an emptying groove corresponding to the wedge assembly.

[0024] The high-pressure-resistant quick connection structure, wherein the end of the inner liner extends outwardly with a protruding ring, and the protruding ring is in position-limiting cooperation with the end of the test copper pipe.

[0025] A detection device, wherein the high-pressure-resistant quick connection structure is adopted, and the device further comprises a pipeline base, and the end of the locking mechanism that does not extend into the locking joint is detachably and sealingly connected with the pipeline base.

[0026] Compared with the prior art, the technical scheme has the following positive effects:

[0027] The locking joint and the locking mechanism are cooperated to clamp the test copper pipe and ensure the sealing property, the inner liner is arranged to prevent the test copper pipe from being deformed when being clamped, and the test copper pipe is convenient to disassemble and assemble. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a sectional view of the whole structure of the high-pressure-resistant quick connection structure;

[0029] Figure 2 It is a sectional view of the wedge-tightening assembly in the high-pressure-resistant quick connection structure;

[0030] Figure 3 It is a sectional view of the fixed joint in the high-pressure-resistant quick connection structure;

[0031] Figure 4 It is a sectional view of the inner liner in the high-pressure-resistant quick connection structure;

[0032] Figure 5 It is a sectional view of the locking joint in the high-pressure-resistant quick connection structure;

[0033] Figure 6 It is a structural schematic view of the detection device provided with the high-pressure-resistant quick connection structure.

[0034] In the drawings: 1, inner liner; 2, locking joint; 3, locking mechanism; 4, test copper pipe; 6, pipeline base; 11, protruding ring; 21, accommodating cavity; 22, clearance groove; 31, fixed joint; 32, wedge-tightening assembly; 33, pressing inclined surface; 34, shrinkage inclined surface; 35, wedge-tightening block; 36, ring groove; 37, mounting groove; 38, step; 61, connecting port. DETAILED DESCRIPTION

[0035] The utility model will be further described in connection with the drawings and specific embodiments, but not as the limitation of the utility model.

[0036] AsFigures 1 to 5 As shown in the drawing, the high-pressure resistant quick connection structure of a preferred embodiment comprises: a lining 1, a locking connector 2 and a locking mechanism 3, the lining 1 is arranged inside the end of a test copper pipe 4 and supports the inner wall of the test copper pipe 4, the locking connector 2 is sleeved outside the test copper pipe 4, the locking connector 2 is a hollow structure with one end open, the locking mechanism 3 extends into the locking connector 2 and the test copper pipe 4, and the locking mechanism 3 is in a fixed connection state with the locking connector 2 and presses the test copper pipe 4, so that the locking mechanism 3 and the test copper pipe 4 are in sealing cooperation.

[0037] Further, as a preferred embodiment, the part of the locking mechanism 3 extending into the locking connector 2 corresponds to the radial direction of the test copper pipe 4 along the lining 1.

[0038] The length of the part of the locking mechanism 3 extending into the locking connector 2 is not greater than the length of the lining 1.

[0039] The utility model discloses a locking connector 2 and locking mechanism 3 cooperate, and the test copper pipe 4 is clamped while ensuring the sealing property, and the lining 1 is arranged to prevent the test copper pipe 4 from deforming when being clamped, which facilitates dismounting.

[0040] Further, as a preferred embodiment, the locking mechanism 3 comprises: a fixed connector 31, the fixed connector 31 extends into the locking connector 2 and the test copper pipe 4, and the fixed connector 31 is in a fixed connection state with the locking connector 2 and presses the test copper pipe 4, so that the fixed connector 31 and the test copper pipe 4 are in sealing cooperation.

[0041] Further, as a preferred embodiment, the locking mechanism 3 further comprises: a wedge assembly 32, the wedge assembly 32 is arranged between the locking connector 2 and the test copper pipe 4.

[0042] The utility model discloses a wedge assembly 32 can be clamped to the test copper pipe, and the connection strength of the locking connector 2 and the locking mechanism 3 is ensured.

[0043] Further, as a preferred embodiment, the fixed connector 31 is in a fixed connection state with the inner wall of the locking connector 2, so that the wedge assembly 32 and the test copper pipe 4 are clamped, and the fixed connector 31 and the test copper pipe 4 are in sealing cooperation.

[0044] The length of the part of the fixed connector 31 extending into the locking connector 2 in cooperation with the wedge assembly 32 is not greater than the length of the lining 1.

[0045] The length limitation in the utility model can improve the clamping force of the outer wall of the copper pipe while improving the internal support of the copper pipe.

[0046] The above is only a preferred embodiment of the utility model, and does not limit the implementation mode and protection scope of the utility model.

[0047] The utility model discloses further have the following implementation on the basis of above:

[0048] Further embodiment of the utility model, please continue to see Figures 1 to 6 As shown, the wedge assembly 32 is operable against the outer wall of the test copper pipe 4 to cause the wedge assembly 32 to deform or displace, thereby reducing the inner diameter of the wedge assembly 32 and clamping the test copper pipe 4.

[0049] In a further embodiment of the utility model, the wedge assembly 32 is against the other end of the locking connector 2 and the fixed connector 31.

[0050] In a further embodiment of the utility model, the wedge assembly 32 has a compression inclined surface 34, and the end of the fixed connector 31 has a compression inclined surface 33, which is pressed against the compression inclined surface 34 to cause the wedge assembly 32 to deform or displace, thereby reducing the inner diameter of the wedge assembly 32, and the wedge assembly 32 clamps the test copper pipe 4.

[0051] In a further embodiment of the utility model, the wedge assembly 32 includes at least two wedge blocks 35, which are arranged between the locking connector 2 and the test copper pipe 4 and distributed along the circumference of the test copper pipe 4. Each wedge block 35 has an inclined surface, and a plurality of inclined surfaces form the compression inclined surface 34.

[0052] In a further embodiment of the utility model, when the fixed connector 31 is in fixed connection with the inner wall of the locking connector 2, the fixed connector 31 presses against the plurality of wedge blocks 35, and the compression inclined surface 33 presses against the plurality of inclined surfaces, so that the two wedge blocks 35 clamp the test copper pipe 4.

[0053] By arranging a plurality of inclined surfaces, when the fixed connector 31 is connected with the locking connector 2, the wedge assembly 32 is extruded to reduce its inner diameter, thereby improving the connection strength between the wedge assembly 32 and the test copper pipe 4.

[0054] In a further embodiment of the utility model, the inner wall of the wedge assembly 32 is provided with at least one ring groove 36 along the axial direction thereof.

[0055] In a further embodiment of the utility model, the inner wall of each wedge block 35 is provided with at least one clamping groove along the circumference of the test copper pipe 4, and the clamping grooves of the plurality of wedge blocks form the ring groove 36.

[0056] The arrangement of the ring groove 36 further improves the connection strength between the wedge assembly 32 and the test copper pipe 4.

[0057] In a further embodiment of the utility model, at least one sealing ring is arranged between the fixed connector 31 and the test copper pipe 4.

[0058] The inner wall of the fixed joint 31 is provided with at least one mounting groove 37, and the sealing ring is mounted in the mounting groove 37 and sealingly matched with the test copper pipe 4.

[0059] In the further embodiment of the utility model, the locking joint 2 has an empty avoiding groove 22, and the empty avoiding groove 22 corresponds to the wedge tightening assembly 32.

[0060] The locking joint 2 has a containing cavity 21 at one end, and the outer periphery of the bottom of the containing cavity 21 is provided with an empty avoiding groove 22.

[0061] The locking mechanism 3 extends into the containing cavity 21.

[0062] The wedge tightening assembly 32 is placed at the bottom of the containing cavity 21, the fixed joint 31 extends into the containing cavity 21, the end of the fixed joint 31 abuts against the wedge tightening assembly 32, and part of the end of the fixed joint 31 extends into the empty avoiding groove 22.

[0063] The empty avoiding groove 22 is used to avoid the interference between the fixed joint 31 and the locking joint 2 along the axial direction.

[0064] The locking mechanism 3 is threadedly connected with the locking joint 2.

[0065] The locking mechanism 3 is threadedly connected with the inner wall of the containing cavity 21.

[0066] The outer side of the fixed joint 31 is threadedly connected with the inner wall of the containing cavity 21.

[0067] In the further embodiment of the utility model, the end of the inner lining 1 extends outwardly with a convex ring 11, and the convex ring 11 is limitingly matched with the end of the test copper pipe 4.

[0068] The inner wall of the fixed joint 31 is provided with a step 38, and the convex ring 11 is limited between the step 38 and the end of the test copper pipe 4.

[0069] The copper pipe fitting cap pressure test equipment in the prior art is of an integrated structure, mainly comprising a pipeline base, a plurality of branch pipes welded on the pipeline base, a plurality of test copper pipes respectively welded with the plurality of branch pipes, and a plurality of pipe caps respectively clamped and connected with the plurality of test copper pipes, so as to realize multi-path simultaneous test.

[0070] Since the pipe cap pressure test needs to be performed, the pipe cap needs to be sleeved on the test copper pipe, and the pipe cap and the test copper pipe need to be clamped and pressed each time, the test copper pipe is deformed after being pressed, and often needs to be sawed and cut in sections to be used next time, and after the length is not enough, the pipeline base, the branch pipe and the whole test equipment need to be replaced, which is too high in cost.

[0071] For example, Figure 6As shown, the utility model discloses a detection device, including at least one high pressure resistant quick -connect structure, still include: pipeline base 6, the one end of locking mechanism 3 not being inserted into locking connector 2 with pipeline base 6 detachably seal connection.

[0072] The one end of fixed connector 31 is connected with locking connector 2, and the other end of fixed connector 31 is detachably and sealably connected with pipeline base 6.

[0073] The other end of fixed connector 31 is threadedly connected with pipeline base 6.

[0074] A plurality of connecting ports 61 are arranged on pipeline base 6, and the other end of fixed connector 31 is threadedly connected with connecting port 61.

[0075] At least one sealing ring is arranged between the other end of fixed connector 31 and pipeline base 6.

[0076] One end of the test copper pipe is connected with pipeline base 6 through the high pressure resistant quick -connect structure, and the other end of the test copper pipe is connected with the pipe cap through the clamping and pressing mode.

[0077] When the pipe cap is pressure tested next time, the test copper pipe can be cut and used again until the test copper pipe is too short to be used, that is, the test copper pipe is replaced, and pipeline base 6 does not need to be replaced, so that installation is facilitated, the sealing property is ensured, and cost is reduced.

[0078] The above only is the preferred embodiment of the utility model, and does not limit the implementation and protection scope of the utility model, and for those skilled in the art, it should be realized that the equivalent replacement and obvious changes obtained from the application of the utility model specification and drawing contents should be contained in the protection scope of the utility model.

Claims

1. A high-pressure resistant quick connection structure, characterized by comprising: include: The liner is installed inside the end of the copper tube and supports the inner wall of the copper tube. A locking connector, which is sleeved on the outside of the copper tube, is a hollow structure with one end open; A locking mechanism extends between the locking connector and the copper tube, and the locking mechanism is fixedly connected to the locking connector, pressing the copper tube to achieve a sealed fit between the locking mechanism and the copper tube.

2. The high-pressure resistant quick-connect structure according to claim 1, characterized in that The portion of the locking mechanism that extends into the locking joint corresponds radially to the inner liner of the copper tube; The length of the portion of the locking mechanism that extends into the locking joint is no greater than the length of the inner lining.

3. The high-pressure resistant quick-connect structure according to claim 1, wherein The locking mechanism includes a fixed connector that extends between the locking connector and the copper tube. The fixed connector and the locking connector are fixedly connected and press against the copper tube to achieve a sealed fit between the fixed connector and the copper tube.

4. The high-pressure resistant quick-connect structure according to claim 3, characterized in that The locking mechanism further includes a wedge assembly, which is disposed between the locking joint and the copper tube; When the fixed joint is fixedly connected to the inner wall of the locking joint, the wedge clamping assembly is clamped between the copper tube, and the fixed joint and the copper tube are sealed together.

5. The high-pressure resistant quick-connect structure according to claim 4, characterized in that The wedge clamping assembly is operably pressed against the outer wall of the copper tube to deform or displace the wedge clamping assembly, reduce the inner diameter of the wedge clamping assembly, and thus clamp the copper tube.

6. The high-pressure resistant quick-connect structure according to claim 5, wherein The wedge assembly abuts against the other end of the locking joint between the fixing joint and the fixed joint; The wedge clamping assembly has a tightening inclined surface, and the end of the fixed joint has a pressing inclined surface. The pressing inclined surface presses against the tightening inclined surface to cause the wedge clamping assembly to deform or displace, thereby reducing the inner diameter of the wedge clamping assembly and clamping the copper tube.

7. The high-pressure resistant quick-connect structure according to claim 6, characterized in that The wedge clamping assembly includes at least two wedge clamping blocks, which are disposed between the locking joint and the copper tube and distributed along the circumference of the copper tube. Each wedge clamping block has an inclined surface, and the plurality of inclined surfaces form the tightening inclined surface. With the fixed joint and the inner wall of the locking joint in a fixed connection state, the fixed joint presses against multiple wedge blocks, and the pressing inclined surface presses against multiple inclined surfaces, so that the two wedge blocks clamp the copper tube; The inner wall of the wedge assembly is provided with at least one annular groove along its axial direction; Each of the wedge blocks has at least one clamping groove on its inner wall along the circumference of the copper tube, and the clamping grooves of the multiple wedge blocks form the annular groove.

8. The high pressure resistant quick connect structure of claim 1, wherein, At least one sealing ring is provided between the fixed joint and the copper pipe.

9. The high pressure resistant quick connect structure of claim 1, wherein, The end of the liner extends outward with a protruding ring, which is matched with the end of the copper tube for positioning.

10. A detection device, characterized by The system includes at least one high-pressure resistant quick-connect structure as described in any one of claims 1 to 9, and further includes: a pipeline base, wherein one end of the locking mechanism that does not extend into the locking joint is detachably and sealingly connected to the pipeline base.

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