Pipeline pressing leak detection device

Abstract

The utility model provides a pipeline pressing leak detection device, and belongs to the technical field of pipeline detection devices. The pressurizing leak detection device comprises a first manipulator, a second manipulator and a valve, one end of a detected pipeline can be hermetically clamped by the first manipulator, the other end of the detected pipeline can be hermetically clamped by the second manipulator, and a medium output end of the valve is communicated with an accommodating space in the detected pipeline. The detection medium can be conveyed to the containing space of the detected pipeline, and whether the detected pipeline leaks or not is judged by detecting whether the medium leaks in the containing space of the detected pipeline or not. Whether a conventional pipeline, a pipe fitting and a metal hose have leakage points or not is unknown, hidden dangers are large when the conventional pipeline, the pipe fitting and the metal hose are installed in a system, leakage detection needs to be carried out before installation, a joint for leakage detection needs to be welded and needs to be cut off after leakage detection is completed, and the leakage detection process is complex. According to the pressing leak detection device, the detected pipeline is clamped by the two manipulators, leak detection of the detected pipeline can be completed without welding a leak detection joint, and the pressing leak detection device is convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline detection device technical field, in particular to a pipeline pressure leak detection device. BACKGROUND

[0002] The conventional pipeline, pipe fitting, metal hose do not know whether there is a leakage point, install in the system hidden danger is bigger, need leak detection before installation, the conventional leak detection needs to weld the joint for leak detection, needs to cut off after leak detection, leak detection process is complex. UTILITY MODEL CONTENTS

[0003] Therefore, the utility model provides a pipeline pressure leak detection device, which utilizes two mechanical hands to clamp the pipeline under test, does not need to weld the joint for leak detection, can complete leak detection of the pipeline under test, is convenient to apply, and is more suitable for practical use.

[0004] In order to achieve the above purpose, the technical scheme of the pipeline pressure leak detection device provided by the utility model is as follows:

[0005] The pipeline pressure leak detection device provided by the utility model comprises a first mechanical hand (M), a second mechanical hand (N) and a valve,

[0006] One end of the pipeline under test (5) can be sealed and clamped by the first mechanical hand (M), and the other end of the pipeline under test (5) can be sealed and clamped by the second mechanical hand (N),

[0007] The medium output end of the valve is in communication with the containing space in the pipeline under test (5), the valve can be used to deliver detection medium to the containing space of the pipeline under test (5), and whether the pipeline under test (5) leaks can be determined by whether the detection medium leaks in the containing space of the pipeline under test (5).

[0008] The pipeline pressure leak detection device provided by the utility model can also be further realized by the following technical measures.

[0009] As a preferred, the pipeline pressure leak detection device further comprises a connecting seat,

[0010] The first mechanical hand (M) and the second mechanical hand (N) are fixedly connected to the connecting seat respectively.

[0011] As a preferred, the pipeline pressure leak detection device further comprises a hinge (2) and a lock catch (3),

[0012] The connecting seat comprises a first connecting seat (1) and a second connecting seat (4),

[0013] The first mechanical hand (M) is connected to the second connecting seat (4), and the second mechanical hand (N) is connected to the first connecting seat (1).

[0014] One side of the first connecting seat (1) and the second connecting seat (4) are connected together through the hinge (2), so that the first connecting seat (1) and the second connecting seat (4) can rotate with the hinge (2) as the center of rotation;

[0015] The other side of the first connecting seat (1) and the second connecting seat (4) are detachably connected together through the lock buckle (3), so that when the first connecting seat (1) and the second connecting seat (4) are connected together through the lock buckle (3), the first mechanical hand (M) and the second mechanical hand (N) can clamp the flat test pipeline (5); when the other side of the first connecting seat (1) and the second connecting seat (4) are not connected together through the lock buckle (3), the first mechanical hand (M) and the second mechanical hand (N) can clamp the test pipeline (5) at a set angle, wherein the included angle of the test pipeline (5) is equal to the included angle between the first connecting seat (1) and the second connecting seat (5).

[0016] As a preferred,

[0017] The first connecting seat (1) is provided with a second limiting groove (21) and a third limiting groove (49),

[0018] The second connecting seat (4) is provided with a first limiting groove (20) and a fourth limiting groove (48),

[0019] The first mechanical hand (M) can linearly move on the second connecting seat (4) along the first limiting groove (20) and the fourth limiting groove (48) of the second connecting seat (4);

[0020] The second mechanical hand (N) can linearly move on the first connecting seat (1) along the second limiting groove (21) and the third limiting groove (49) of the first connecting seat (1).

[0021] As a preferred,

[0022] The first mechanical hand (M) comprises a first pipeline clamping mechanism, and / or the second mechanical hand (N) comprises a second pipeline clamping mechanism;

[0023] The first pipeline clamping mechanism provides a first through hole,

[0024] The free end of one end of the test pipeline (5) after passing through the first through hole is sealed;

[0025] The second pipeline clamping mechanism provides a second through hole (45),

[0026] The free end of the other end of the test pipeline (5) after passing through the second through hole is sealed.

[0027] As a preferred,

[0028] The first pipe clamping mechanism comprises a first pipe clamp (15), a second pipe clamp (16) and a first clamp (14),

[0029] The lower side of the first pipe clamp (15) is provided with a first semicircular hole, and the upper side of the second pipe clamp (16) is provided with a second semicircular hole. When the first pipe clamp (15) and the second pipe clamp (16) are joined together by the first clamp (14), the first semicircular hole and the second semicircular hole jointly provide the first through hole;

[0030] The second pipe clamping mechanism comprises a third pipe clamp (29), a fourth pipe clamp (30) and a second clamp (38),

[0031] The lower side of the third pipe clamp (29) is provided with a third semicircular hole, and the upper side of the fourth pipe clamp (30) is provided with a fourth semicircular hole. When the third pipe clamp (29) and the fourth pipe clamp (30) are joined together by the second clamp (38), the third semicircular hole and the fourth semicircular hole jointly provide the second through hole.

[0032] As a preferred, the pipeline pressure leak detection device further comprises a first connecting piece (6), a first bottom connecting piece (17), a second connecting piece (7) and a second bottom connecting piece (32),

[0033] The first manipulator (M) is connected to the second connecting seat (4) through the first connecting piece (6), and the first bottom connecting piece (17) is fixedly connected to the first connecting piece (6);

[0034] The second manipulator (N) is connected to the first connecting seat (1) through the second connecting piece (7), and the second bottom connecting piece (32) is fixedly connected to the second connecting piece (7);

[0035] The second pipe clamp (16) is connected to the first bottom connecting piece (17),

[0036] The fourth pipe clamp (30) is connected to the second bottom connecting piece (32).

[0037] As a preferred, the pipeline pressure leak detection device further comprises a first boss, a first limiting block, a second boss and a second limiting block (59),

[0038] The first boss is fixedly connected to the bottom of the second pipe clamp (16), so that the first boss forms a first flange (18) and a second flange (76) at the bottom relative to the second pipe clamp (16) in the axial direction, and forms a first limiting step and a second limiting step relative to the second pipe clamp (16) at the bottom in the radial direction; the first limiting block is fixedly connected to the bottom of the first boss;

[0039] The second boss is fixedly connected to the bottom of the fourth pipe clamp (30), so that the second boss forms a third flange (31) and a fourth flange (35) at the bottom relative to the second pipe clamp (16) in the axial direction, and forms a third limiting step and a fourth limiting step relative to the second pipe clamp (30) at the bottom in the radial direction; the second limiting block (59) is fixedly connected to the bottom of the second boss;

[0040] A first accommodating hole is formed in the first bottom connecting piece (17), the first accommodating hole is a first stepped hole, the first stepped hole includes a first section hole and a second section hole, a first limiting boss and a second limiting boss are formed at the opening side of the first stepped hole, the radial dimension of the second section hole is smaller than the radial dimension of the first section hole, the shape of the first section hole is matched with the shape of the first boss, and the shape of the second section hole is matched with the shape of the first limiting block;

[0041] A second accommodating hole is formed in the second bottom connecting piece (32), the second accommodating hole is a second stepped hole, the second stepped hole includes a third section hole (64) and a fourth section hole (65), a third limiting boss (62) and a fourth limiting boss (63) are formed at the opening side of the second stepped hole, the radial dimension of the fourth section hole (65) is smaller than the radial dimension of the third section hole (64), the shape of the third section hole (64) is matched with the shape of the second boss, and the shape of the fourth section hole (65) is matched with the shape of the second limiting block (59);

[0042] The first clamp (14) is arranged above the first pipe clamp (15) by top pressing, a first hook (19) is formed at the free end of a first clamping arm (39) of the first clamp (14), a second hook (77) is formed at the free end of a second clamping arm (40) of the first clamp (14), the first hook (19) abuts against the bottom of the first flange (18), and the second hook (77) abuts against the bottom of the second flange (76);

[0043] The second clamp (38) is arranged above the third pipe clamp (29) by top pressing, and a third hook (34) is formed at the free end of the third clamping arm (28) of the second clamp (38), and a fourth hook (36) is formed at the free end of the fourth clamping arm (37) of the second clamp (38), the third hook (34) abuts against the bottom of the third flange (31), and the fourth hook (36) abuts against the bottom of the fourth flange (35).

[0044] Preferably, the pipeline pressure leak detection device further comprises a first protruding point, a second protruding point, a third protruding point (41) and a fourth protruding point (42),

[0045] The first protruding point and the second protruding point are arranged at the bottom of the horizontal arm of the first clamp (14) and at the top of the first pipe clamp (15); a first recessed point is arranged at a position corresponding to the first protruding point, and a second recessed point is arranged at a position corresponding to the second protruding point; the first recessed point is matched with the first protruding point, and the second recessed point is matched with the second protruding point.

[0046] The third protruding point (41) and the fourth protruding point (42) are arranged at the bottom of the horizontal arm of the second clamp (38) and at the top of the third pipe clamp (29); a third recessed point (60) is arranged at a position corresponding to the third protruding point (41), and a fourth recessed point (61) is arranged at a position corresponding to the fourth protruding point (42); the third recessed point (60) is matched with the third protruding point (41), and the fourth recessed point (61) is matched with the fourth protruding point (42).

[0047] Preferably, the pipeline pressure leak detection device further comprises a first tightening screw (12), a second tightening screw (13), a third tightening screw (26) and a fourth tightening screw (27),

[0048] The horizontal arm of the first clamp (14) is provided with a first screw hole and a second screw hole, the foot of the first tightening screw (12) abuts against the top of the first pipe clamp (15) after passing through the first screw hole, and the foot of the second tightening screw (13) abuts against the top of the first pipe clamp (15) after passing through the second screw hole.

[0049] The horizontal arm of the second clamp (38) is provided with a third screw hole and a fourth screw hole, the foot of the third tightening screw (26) abuts against the top of the third pipe clamp (29) after passing through the third screw hole, and the foot of the fourth tightening screw (27) abuts against the top of the third pipe clamp (29) after passing through the fourth screw hole.

[0050] As preferred, the pipeline press leak detection device further comprises a third connecting member (8), a first screw rod (10), a first screw rod penetrating shaft (55), a fourth connecting member (24), a second screw rod (23) and a second screw rod penetrating shaft (58),

[0051] The third connecting member (8) comprises a first horizontal part and a first vertical part, the first vertical part is fixedly connected to the first horizontal part, the first horizontal part is fixedly connected to the first connecting member (6), the first screw rod penetrating shaft (55) is fixedly arranged on the first vertical part through an eighth connecting member (69), one end of the first screw rod (10) penetrates the penetrating hole of the first screw rod penetrating shaft (55) and then clamps one end of the pipeline under test (5);

[0052] The fourth connecting member (24) comprises a second horizontal part and a second vertical part, the second vertical part is fixedly connected to the second horizontal part, the second horizontal part is fixedly connected to the second connecting member (7), the second screw rod penetrating shaft (58) is fixedly arranged on the second vertical part through a sixth connecting member (50), one end of the second screw rod (23) penetrates the penetrating hole of the second screw rod penetrating shaft (58) and then clamps the other end of the pipeline under test (5).

[0053] As preferred, the pipeline press leak detection device further comprises a first pipe plug (54) and a second pipe plug (53),

[0054] One end of the first pipe plug (54) is fixedly connected to the first screw rod (10) for clamping one end of the pipeline under test (5), the other end of the first pipe plug (54) is plugged into one end of the pipeline under test (5);

[0055] One end of the second pipe plug (53) is fixedly connected to the second screw rod (23) for clamping one end of the pipeline under test (5), the other end of the second pipe plug (53) is plugged into the other end of the pipeline under test (5);

[0056] The medium output end is arranged on the first pipe plug (54) and the second pipe plug (53).

[0057] As preferred, the pipeline press leak detection device further comprises a first supporting member (11) and a second supporting member (25),

[0058] The first pipe plug (54) is fixedly arranged on the first supporting member (11),

[0059] The second pipe plug (53) is fixedly arranged on the second supporting member (25).

[0060] As preferred,

[0061] The first pipe plug (54) is first tapered, and the first pipe plug (54) is filled in one end of the detected pipeline (5) through the smaller side of its diameter;

[0062] The second pipe plug (53) is second tapered, and the second pipe plug (53) is filled in the other end of the detected pipeline (5) through the smaller side of its diameter.

[0063] As preferred, the pipeline pressure leak detection device further comprises a third lead screw penetrating shaft (57), a first limiting shaft sleeve (46), a fifth connecting piece (47), a fourth lead screw penetrating shaft (56), a second limiting shaft sleeve (51) and a seventh connecting piece (52),

[0064] The third lead screw penetrating shaft (57) is arranged on the first supporting member (11) through the first limiting shaft sleeve (46) and the fifth connecting piece (47), and the first lead screw (10) also penetrates the third lead screw penetrating shaft (57);

[0065] The fourth lead screw penetrating shaft (56) is arranged on the second supporting member (25) through the second limiting shaft sleeve (51) and the seventh connecting piece (52), and the second lead screw (23) also penetrates the fourth lead screw penetrating shaft (56).

[0066] As preferred, the valve comprises a first needle valve (44), a first pressurizing pipe, a second needle valve (33) and a second pressurizing pipe (68),

[0067] The first supporting member (11) is provided with a first needle valve accommodating groove, the first needle valve (44) is arranged on the first needle valve accommodating groove through the foot, the first needle valve (44) is provided with a first medium accommodating hole, the first supporting member is provided with a second medium accommodating hole and a seventh medium accommodating hole, the first pressurizing pipe is fixedly arranged in the inside of the first pipe plug (54), the second pressurizing pipe is provided with a fourth medium accommodating hole in the inside, the first pressurizing port of the first needle valve (44), the first medium accommodating hole, the second medium accommodating hole, the third medium accommodating hole and the fourth medium accommodating hole are communicated, and the inside of the detected pipeline (5) is communicated;

[0068] The second supporting piece (25) is provided with a second needle valve containing groove (71), the second needle valve (33) is arranged in the second needle valve containing groove (71) through the foot, the fifth medium containing hole (72) is arranged in the second needle valve (33), the sixth medium containing hole (73) and the seventh medium containing hole (74) are arranged on the second supporting piece (25), the second pressurizing pipe (68) is fixedly arranged in the inside of the second pipe plug (53), the eighth medium containing hole (75) is arranged in the inside of the second pressurizing pipe (68), the second pressurizing port (70) of the second needle valve (33), the fifth medium containing hole (72), the sixth medium containing hole (73), the seventh medium containing hole (74) and the eighth medium containing hole (75) are communicated, and the inside of the detected pipeline (5) is communicated.

[0069] As preferred, the pipeline pressure leak detection device further comprises a first hand wheel (9) and a second hand wheel (2),

[0070] The output shaft of the first hand wheel (9) is fixedly connected to the first lead screw (10),

[0071] The output shaft of the second hand wheel (22) is fixedly connected to the second lead screw (23).

[0072] As preferred,

[0073] The bottom of the first limiting block is chamfered on both sides,

[0074] The bottom of the second limiting block (59) is chamfered on both sides.

[0075] The pipeline pressure leak detection device provided by the utility model utilizes the first mechanical hand M and the second mechanical hand N to clamp the detected pipeline 5, then, the detection medium is transported to the containing space in the detected pipeline 5 through the detection medium output end of the valve, whether the detected pipeline 5 has leakage can be judged, wherein, when the detected pipeline 5 has leakage, the detection medium will leak from the leakage point, on the contrary, if the detected pipeline 5 does not have leakage, the detection medium will not leak from the detected pipeline 5, after detection, the first mechanical hand M and the second mechanical hand N are removed from the detected pipeline 5, therefore, the pipeline pressure leak detection device provided by the utility model embodiment is more convenient to apply. BRIEF DESCRIPTION OF DRAWINGS

[0076] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not intended to limit the scope of the application. Furthermore, the drawings are not necessarily drawn to scale. In the drawings:

[0077] ATTACHMENT Figure 1The pipeline pressing leak detection device provided by the embodiment of the utility model cooperates with the pipeline under test, and the connection structure schematic diagram in the first typical direction, wherein the pipeline under test is a straight pipe;

[0078] The Figure 2 The pipeline pressing leak detection device provided by the embodiment of the utility model cooperates with the pipeline under test, and the connection structure schematic diagram in the second typical direction, wherein the pipeline under test is a straight pipe;

[0079] The Figure 3 The pipeline pressing leak detection device provided by the embodiment of the utility model cooperates with the pipeline under test, and the connection structure schematic diagram in the third typical direction, wherein the pipeline under test is a straight pipe;

[0080] The Figure 4 The Figure 3 The local enlarged structure schematic diagram of part A;

[0081] The Figure 5 The pipeline pressing clamping mechanism applied in the pipeline pressing leak detection device provided by the embodiment of the utility model is the three-dimensional structure schematic diagram in the first typical direction;

[0082] The Figure 6 The pipeline pressing clamping mechanism applied in the pipeline pressing leak detection device provided by the embodiment of the utility model is the three-dimensional structure schematic diagram in the second typical direction;

[0083] The Figure 7 The first clamp applied in the pipeline pressing leak detection device provided by the embodiment of the utility model is the three-dimensional structure schematic diagram in a typical direction;

[0084] The Figure 8 The first pipe clamp, the second pipe clamp and the bottom connecting piece applied in the pipeline pressing leak detection device provided by the embodiment of the utility model are the three-dimensional structure schematic diagram in a typical direction after cooperation;

[0085] The Figure 9 The first pipe clamp and the second pipe clamp applied in the pipeline pressing leak detection device provided by the embodiment of the utility model are the three-dimensional structure schematic diagram in a typical direction after cooperation;

[0086] The Figure 10 The bottom connecting piece applied in the pipeline pressing leak detection device provided by the embodiment of the utility model is the three-dimensional structure schematic diagram in a typical direction;

[0087] The Figure 11 The pressing mechanism applied in the pipeline pressing leak detection device provided by the embodiment of the utility model is the structure schematic diagram in a typical direction;

[0088] The Figure 12 TheFigure 11 BB-direction sectional view;

[0089] Explanation of reference numerals in the attached figures:

[0090] 1-First connecting seat, 2-Hinge, 3-Lock, 4-Second connecting seat, 5-Inspected pipeline, 6-First connecting piece, 7-Second connecting piece, 8-Third connecting piece, 9-First handwheel, 10-First lead screw, 11-First support piece, 12-First set screw, 13-Second set screw, 14-First clamp, 15-First pipe clamp, 16-Second pipe clamp, 17-First bottom connecting piece, 18-First flange, 19-First claw, 20-First limiting groove, 21-Second limiting groove, 22-Second handwheel 23-Second lead screw, 24-Fourth connecting piece, 25-Second support piece, 26-Third set screw, 27-Fourth set screw, 28-Third clamping arm, 29-Third pipe clamp, 30-Fourth pipe clamp, 31-Third flange, 32-Second bottom connecting piece, 33-Second needle valve, 34-Third hook, 35-Fourth flange, 36-Fourth hook, 37-Fourth clamping arm, 38-Second clamp, 39-First clamping arm, 40-Second clamping arm, 41-Third protrusion position, 42-Fourth protrusion position, 4 3-Fourth lead screw shaft, 44-First needle valve, 45-Second through hole, 46-First limiting bushing, 47-Fifth connector, 48-Fourth limiting groove, 49-Third limiting groove, 50-Sixth connector, 51-Second limiting bushing, 52-Seventh connector, 53-Second tube plug, 54-First tube plug, 55-First lead screw through shaft, 56-Fourth lead screw through shaft, 57-Third lead screw through shaft, 58-Second lead screw through shaft, 59-Second limiting block, 60-Third recessed point, 61-Fourth recessed point Position, 62-Third limiting boss, 63-Fourth limiting boss, 64-Third limiting receiving groove, 65-Fourth limiting receiving groove, 66-Second gasket, 67-Second locking nut, 68-Second pressure tube, 69-Eighth connector, 70-Second pressure port, 71-Second needle valve receiving groove, 72-Fifth medium receiving hole, 73-Sixth medium receiving hole, 74-Seventh medium receiving hole, 75-Eighth medium receiving hole, 76-Second flange, 77-Second claw, M-First robotic arm, N-Second robotic arm. Detailed Implementation

[0091] In view of this, the present invention provides a pipeline pressure testing and leak detection device, which uses two robotic arms to hold the pipeline under test, and can complete the leak detection of the pipeline under test without welding the leak detection joints. It is convenient to use and therefore more suitable for practical application.

[0092] To further illustrate the technical means and effects taken by the utility model to achieve the predetermined utility model purposes, the following describes the pipe pressure leak detection device, its specific implementation, structure, features and effects according to the utility model in detail in combination with the drawings and preferred embodiments. In the following description, different "an embodiment" or "embodiments" do not necessarily refer to the same embodiment. In addition, specific features, structures or characteristics in one or more embodiments can be combined in any suitable form.

[0093] The term "and / or" herein merely describes the association relationship of the associated objects, and indicates that there can be three relationships, for example, A and / or B, which can be understood as: A and B can exist simultaneously, A can exist alone, and B can exist alone, and any one of the above three cases can be possessed.

[0094] Referring to the drawings Figure 1 - the Figure 12 The pipe pressure leak detection device provided by the utility model embodiment comprises a first mechanical hand M, a second mechanical hand N and a valve. One end of a pipe under test 5 can be sealed and clamped by the first mechanical hand M, and the other end of the pipe under test 5 can be sealed and clamped by the second mechanical hand N. The medium output end of the valve is in communication with the containing space in the pipe under test 5, and through the valve, the detection medium can be delivered to the containing space in the pipe under test 5, and whether the pipe under test 5 leaks can be judged by whether the detection medium leaks in the containing space in the pipe under test 5.

[0095] The pipe pressure leak detection device provided by the utility model embodiment utilizes the first mechanical hand M and the second mechanical hand N to clamp the pipe under test 5, and then the detection medium is delivered to the containing space in the pipe under test 5 through the detection medium output end of the valve, so that whether the pipe under test 5 leaks can be judged. When the pipe under test 5 leaks, the detection medium will leak from the leakage point, on the contrary, if the pipe under test 5 does not leak, the detection medium will not leak out of the pipe under test 5, and after detection, the first mechanical hand M and the second mechanical hand N can be removed from the pipe under test 5, therefore, the pipe pressure leak detection device provided by the utility model embodiment is more convenient to apply.

[0096] In this case, the first mechanical hand M and the second mechanical hand N can be fixed on the connecting seat, without the need to hold the first mechanical hand M and the second mechanical hand N, therefore, the pipe pressure leak detection device provided by the utility model embodiment can clamp the pipe under test 5 by itself using the connecting seat, the first mechanical hand M and the second mechanical hand N in the application process, and is more convenient to apply.

[0097] The utility model discloses a pipeline press leak detection device, which comprises a first connecting seat 1, a second connecting seat 4, a first mechanical hand M and a second mechanical hand N.

[0098] The first connecting seat 1 is provided with a second limiting groove 21 and a third limiting groove 49, and the second connecting seat 4 is provided with a first limiting groove 20 and a fourth limiting groove 48. The first mechanical hand M can move linearly on the second connecting seat 4 along the first limiting groove 20 and the fourth limiting groove 48 of the second connecting seat 4. The second mechanical hand N can move linearly on the first connecting seat 1 along the second limiting groove 21 and the third limiting groove 49 of the first connecting seat 1. In this case, the first mechanical hand M can move linearly on the second connecting seat 4 by using the first limiting groove 20 and the fourth limiting groove 48, and the second mechanical hand N can move on the first connecting seat 1 by using the second limiting groove 21 and the third limiting groove 49, so as to change the distance between the first mechanical hand M and the second mechanical hand N. Therefore, the pipeline press leak detection device provided by the utility model embodiment can be adapted to the test pipeline 5 with different lengths, and the application range is wider.

[0099] The first mechanical arm M comprises a first pipeline clamping mechanism, and / or the second mechanical arm N comprises a second pipeline clamping mechanism. The first pipeline clamping mechanism provides a first through hole, and the free end of one end of the pipeline 5 passing through the first through hole is sealed. The second pipeline clamping mechanism provides a second through hole 45, and the free end of the other end of the pipeline 5 passing through the second through hole is sealed. In this case, the first mechanical arm M clamps one end of the pipeline 5 through the first pipeline clamping mechanism, and the second mechanical arm N clamps the other end of the pipeline 5 through the second pipeline clamping mechanism, so that the clamping effect of the first mechanical arm M and the second mechanical arm N on the pipeline 5 is more stable.

[0100] The first pipeline clamping mechanism comprises a first pipe clamp 15, a second pipe clamp 16 and a first clamp 14. The lower side of the first pipe clamp 15 is provided with a first semicircular hole, and the upper side of the second pipe clamp 16 is provided with a second semicircular hole. When the first pipe clamp 15 and the second pipe clamp 16 are joined together by the first clamp 14, the first semicircular hole and the second semicircular hole jointly provide the first through hole. The second pipeline clamping mechanism comprises a third pipe clamp 29, a fourth pipe clamp 30 and a second clamp 38. The lower side of the third pipe clamp 29 is provided with a third semicircular hole, and the upper side of the fourth pipe clamp 30 is provided with a fourth semicircular hole. When the third pipe clamp 29 and the fourth pipe clamp 30 are joined together by the second clamp 38, the third semicircular hole and the fourth semicircular hole jointly provide the second through hole. In this case, the second pipe clamp 16 and the fourth pipe clamp 30 can be installed first. The second semicircular hole on the second pipe clamp 16 and the fourth semicircular hole on the fourth pipe clamp 30 can correspondingly form a receiving groove of the pipeline 5. After the pipeline 5 is placed on the receiving groove of the pipeline 5, the first pipe clamp 15 is correspondingly placed on the second pipe clamp 16 and the pipeline 5, and the third pipe clamp 29 is correspondingly placed on the fourth pipe clamp 30 and the pipeline 5. At this time, one end of the pipeline 5 can be clamped by the first pipe clamp 15 and the second pipe clamp 16, and the other end of the pipeline 5 can be clamped by the third pipe clamp 29 and the fourth pipe clamp 30. Then, the joint between the first pipe clamp 15 and the second pipe clamp 16 is fixed by using the first clamp 14, and the joint between the third pipe clamp 29 and the fourth pipe clamp 30 is fixed by using the second clamp 38, so that the clamping of the pipeline 5 is more stable. Moreover, the first pipe clamp 15, the second pipe clamp 16, the third pipe clamp 29 and the fourth pipe clamp 30 can be adjusted and replaced according to the size of the outer diameter of the pipeline 5, so that the application range of the pipeline pressing leak detection device provided by the utility model is wider.

[0101] In the utility model embodiment, the pipeline pressing leak detection device further comprises a first connecting piece 6, a first bottom connecting piece 17, a second connecting piece 7 and a second bottom connecting piece 32. The first mechanical hand M is connected to the second connecting seat 4 through the first connecting piece 6, and the first bottom connecting piece 17 is fixedly connected to the first connecting piece 6. The second mechanical hand N is connected to the first connecting seat 1 through the second connecting piece 7, and the second bottom connecting piece 32 is fixedly connected to the second connecting piece 7. The second pipe clamp 16 is connected to the first bottom connecting piece 17, and the fourth pipe clamp 30 is connected to the second bottom connecting piece 32. In this case, the first mechanical hand M and the second mechanical hand N can be more stably connected to the first connecting seat 1 and the second connecting seat 4, and the connection is more convenient.

[0102] The pipeline pressure leak detection device further comprises a first boss, a first limiting block, a second boss and a second limiting block 59. The first boss is fixedly connected to the bottom of the second pipe clamp 16, so that the first boss forms a first flange 18 and a second flange 76 on the bottom of the second pipe clamp 16 in the axial direction, and forms a first limiting step and a second limiting step on the bottom of the second pipe clamp 16 in the radial direction; the first limiting block is fixedly connected to the bottom of the first boss. The second boss is fixedly connected to the bottom of the fourth pipe clamp 30, so that the second boss forms a third flange 31 and a fourth flange 35 on the bottom of the second pipe clamp 16 in the axial direction, and forms a third limiting step and a fourth limiting step on the bottom of the second pipe clamp 30 in the radial direction; the second limiting block 59 is fixedly connected to the bottom of the second boss. The first bottom connecting piece 17 is provided with a first accommodating hole, which is a first stepped hole comprising a first segment hole and a second segment hole, and a first limiting boss and a second limiting boss are formed on the opening side of the first stepped hole; the radial dimension of the second segment hole is smaller than that of the first segment hole; the shape of the first segment hole is matched with that of the first boss; and the shape of the second segment hole is matched with that of the first limiting block. The second bottom connecting piece 32 is provided with a second accommodating hole, which is a second stepped hole comprising a third segment hole 64 and a fourth segment hole 65, and a third limiting boss 62 and a fourth limiting boss 63 are formed on the opening side of the second stepped hole; the radial dimension of the fourth segment hole 65 is smaller than that of the third segment hole 64; the shape of the third segment hole 64 is matched with that of the second boss; and the shape of the fourth segment hole 65 is matched with that of the second limiting block 59. The first clamp 14 is arranged above the first pipe clamp 15 by top pressing, and a first hook 19 is formed on the free end of the first clamping arm 39 of the first clamp 14, and a second hook 77 is formed on the free end of the second clamping arm 40 of the first clamp 14; the first hook 19 abuts against the bottom of the first flange 18, and the second hook 77 abuts against the bottom of the second flange 76. The second clamp 38 is arranged above the third pipe clamp 29 by top pressing, and a third hook 34 is formed on the free end of the third clamping arm 28 of the second clamp 38, and a fourth hook 36 is formed on the free end of the fourth clamping arm 37 of the second clamp 38; the third hook 34 abuts against the bottom of the third flange 31, and the fourth hook 36 abuts against the bottom of the fourth flange 35. In this case, the second pipe clamp 16 forms a linear guide pair with the first bottom connecting piece 17 by the first limiting block, so that the connection between the second pipe clamp 16 and the first bottom connecting piece 17 is more convenient; and the fourth pipe clamp 30 forms a linear guide pair with the second bottom connecting piece 32 by the second limiting block 59, so that the connection between the fourth pipe clamp 30 and the second bottom connecting piece 32 is more convenient.And, the top of the first clamp 14 and the first claw 19, the second claw 77 can make the first pipe clamp 15, the second pipe clamp 16 more stable to the clamping of the pipe under test 5;With the top of the second clamp 38 and the third claw 34, the fourth claw 36 can make the third pipe clamp 29, the fourth pipe clamp 30 more stable to the clamping of the pipe under test 5.

[0103] Wherein, the utility model embodiment provides pipeline hits pressure leak detection device still includes first protruding point, second protruding point, third protruding point 41 and fourth protruding point 42. First protruding point and second protruding point are set up at the horizontal arm bottom of first clamp 14, at the top of first pipe clamp 15, with the position corresponding to first protruding point is provided with first recess point, with the position corresponding to second protruding point is provided with second recess point, first recess point is adapted to first protruding point, and second recess point is adapted to second protruding point. Third protruding point 41 and fourth protruding point 42 are set up at the horizontal arm bottom of second clamp 38, at the top of third pipe clamp 29, with the position corresponding to third protruding point 41 is provided with third recess point 60, with the position corresponding to fourth protruding point 42 is provided with fourth recess point 61, third recess point 60 is adapted to third protruding point 41, and fourth recess point 61 is adapted to fourth protruding point 42. In this case, the cooperation between first protruding point and first recess point of first clamp 14, the cooperation between second protruding point and second recess point make the positioning between first clamp 14 and first pipe clamp 15 more accurate, and the cooperation between third protruding point 41 and third recess point 60 of second clamp 38, fourth protruding point 42 and fourth recess point 61 make the positioning between second clamp 38 and third pipe clamp 29 more accurate.

[0104] Wherein, the utility model embodiment provides pipeline hits pressure leak detection device still includes first tight screw 12, second tight screw 13, third tight screw 26 and fourth tight screw 27. The horizontal arm of first clamp 14 is equipped with first screw hole and second screw hole, and the foot of first tight screw 12 is toped after passing through first screw hole and is toped at the top of first pipe clamp 15, and the foot of second tight screw 13 is toped after passing through second screw hole and is toped at the top of first pipe clamp 15. The horizontal arm of second clamp 38 is equipped with third screw hole and fourth screw hole, and the foot of third tight screw 26 is toped after passing through third screw hole and is toped at the top of third pipe clamp 29, and the foot of fourth tight screw 27 is toped after passing through fourth screw hole and is toped at the top of third pipe clamp 29. In this case, the first clamp 14 is more stable to the clamping of the first pipe clamp 15, the second pipe clamp 16 is more stable to the pipe under test 5, and the second clamp 38 is more stable to the clamping of the third pipe clamp 29, the fourth pipe clamp 30 is more stable to the pipe under test 5.

[0105] The pipeline pressing leak detection device provided by the embodiment of the utility model further comprises a third connecting piece 8, a first screw rod 10, a first screw rod penetrating shaft 55, a fourth connecting piece 24, a second screw rod 23 and a second screw rod penetrating shaft 58. The third connecting piece 8 comprises a first horizontal part and a first vertical part, the first vertical part is fixedly connected to the first horizontal part, the first horizontal part is fixedly connected to the first connecting piece 6, the first screw rod penetrating shaft 55 is fixedly arranged on the first vertical part through an eighth connecting piece 69, and one end of the first screw rod 10 clamps one end of the pipeline 5 to be detected after penetrating the penetrating hole of the first screw rod penetrating shaft 55. The fourth connecting piece 24 comprises a second horizontal part and a second vertical part, the second vertical part is fixedly connected to the second horizontal part, the second horizontal part is fixedly connected to the second connecting piece 7, the second screw rod penetrating shaft 58 is fixedly arranged on the second vertical part through a sixth connecting piece 50, and one end of the second screw rod 23 clamps the other end of the pipeline 5 to be detected after penetrating the penetrating hole of the second screw rod penetrating shaft 58. In this case, the rotary motion of the first screw rod 10 can be converted into the axial movement of the first mechanical hand M on the pipeline 5 to be detected, and the rotary motion of the second screw rod 23 can be converted into the axial movement of the second mechanical hand N on the pipeline 5 to be detected, so that the interval between the first mechanical hand M and the second mechanical hand N can be finely adjusted.

[0106] The pipeline pressing leak detection device provided by the embodiment of the utility model further comprises a first pipe plug 54 and a second pipe plug 53. One end of the first pipe plug 54 is fixedly connected to the first screw rod 10 for clamping one end of the pipeline 5 to be detected, and the other end of the first pipe plug 54 is filled in one end of the pipeline 5 to be detected. One end of the second pipe plug 53 is fixedly connected to the second screw rod 23 for clamping one end of the pipeline 5 to be detected, and the other end of the second pipe plug 53 is filled in the other end of the pipeline 5 to be detected. The medium output end is arranged on the first pipe plug 54 and the second pipe plug 53. In this case, the distance between the first pipe plug 54 and the second pipe plug 53 can be adjusted through the first screw rod 10 and the second screw rod 23, so that the sealing tightness of the pipeline 5 to be detected can be adjusted, and the leak detection accuracy of the pipeline 5 to be detected is higher.

[0107] The pipeline pressing leak detection device provided by the embodiment of the utility model further comprises a first supporting piece 11 and a second supporting piece 25. The first pipe plug 54 is fixedly arranged on the first supporting piece 11, and the second pipe plug 53 is fixedly arranged on the second supporting piece 25. In this case, the connection stability of the first pipe plug 54 and the second pipe plug 53 with the pipeline 5 to be detected can be ensured.

[0108] The first tube plug 54 is first tapered and is plugged into one end of the pipe 5 through the smaller diameter side thereof. The second tube plug 53 is second tapered and is plugged into the other end of the pipe 5 through the smaller diameter side thereof. In this case, by rotating the first screw rod 10, the adjustment of the interval between the second screw rod 23 can be adjusted by the first tube plug 54 and the second tube plug 53 to adjust the sealing performance of the pipe 5, and the adjustment is more convenient.

[0109] The utility model discloses a pipeline pressurized leak detection device further includes third screw rod through the shaft 57, first limit shaft sleeve 46, fifth connecting piece 47, fourth screw rod through the shaft 56, second limit shaft sleeve 51 and seventh connecting piece 52. Third screw rod through the shaft 57 is arranged in first support 11 through first limit shaft sleeve 46, fifth connecting piece 47, and first screw rod 10 is also threaded in third screw rod through the shaft 57. Fourth screw rod through the shaft 56 is arranged in second support 25 through second limit shaft sleeve 51, seventh connecting piece 52, and second screw rod 23 is also threaded in fourth screw rod through the shaft 56. In this case, the setting of first screw rod 10, second screw rod 23 is more stable.

[0110] The valve comprises a first needle valve 44, a first pressurizing pipe, a second needle valve 33 and a second pressurizing pipe 68. The first supporting piece 11 is provided with a first needle valve accommodating groove, the first needle valve 44 is arranged in the first needle valve accommodating groove through a foot portion, the first needle valve 44 is provided with a first medium accommodating hole, the first supporting piece is provided with a second medium accommodating hole and a seventh medium accommodating hole, the first pressurizing pipe is fixedly arranged in the inside of the first pipe plug 54, the inside of the second pressurizing pipe is provided with a fourth medium accommodating hole, the first pressurizing port of the first needle valve 44, the first medium accommodating hole, the second medium accommodating hole, the third medium accommodating hole and the fourth medium accommodating hole are communicated, and the inside of the detected pipeline 5 is communicated. The second supporting piece 25 is provided with a second needle valve accommodating groove 71, the second needle valve 33 is arranged in the second needle valve accommodating groove 71 through a foot portion, the second needle valve 33 is provided with a fifth medium accommodating hole 72, the second supporting piece 25 is provided with a sixth medium accommodating hole 73 and a seventh medium accommodating hole 74, the second pressurizing pipe 68 is fixedly arranged in the inside of the second pipe plug 53, the inside of the second pressurizing pipe 68 is provided with an eighth medium accommodating hole 75, the second pressurizing port 70 of the second needle valve 33, the fifth medium accommodating hole 72, the sixth medium accommodating hole 73, the seventh medium accommodating hole 74 and the eighth medium accommodating hole 75 are communicated, and the inside of the detected pipeline 5 is communicated. In this case, the first needle valve 44 and the second needle valve 33 can input the detection medium into the detected pipeline 5, the input of the detection medium is more convenient, in the embodiment, the third medium accommodating hole and the seventh medium accommodating hole 74 have relatively large hole diameters, can provide a good buffer space for the detection medium input from the first needle valve 44 and the second needle valve 33, can guarantee the application safety and stability of the pipeline pressure test leak detection device, and thus the service life of the pipeline pressure test leak detection device is improved.

[0111] The pipeline pressure test leak detection device further comprises a first hand wheel 9 and a second hand wheel 2. The output shaft of the first hand wheel 9 is fixedly connected to the first screw rod 10, and the output shaft of the second hand wheel 22 is fixedly connected to the second screw rod 23. In this case, according to the torque action principle, since the length of the force arm is increased, a smaller force is applied to the first hand wheel 9 and the second hand wheel 2, and the rotation of the first screw rod 10 and the second screw rod 23 can be realized, and the operation is more convenient.

[0112] The bottom of the first limiting block is provided with chamfers on both sides, and the bottom of the second limiting block 59 is provided with chamfers on both sides. In this case, the gap between the first limiting block and the first bottom connecting piece 17 is prevented from being too small, the contact surface is prevented from being under negative pressure, and the first limiting block is prevented from being difficult to remove from the first bottom connecting piece 17, and the gap between the second limiting block 59 and the second bottom connecting piece 32 is prevented from being too small, the contact surface is prevented from being under negative pressure, and the second limiting block 59 is prevented from being difficult to remove from the second bottom connecting piece 32.

[0113] While the preferred embodiments of the application have been described, those skilled in the art will recognize that many modifications and variations of this preferred embodiment are possible without departing from the spirit and scope of the application. Accordingly, the appended claims are intended to embrace all such alterations and permutations of the preferred embodiments as fall within the scope of this application.

[0114] It is therefore intended that this application embrace all such alterations and permutations of the preferred embodiments as fall within the true spirit and scope of this application.

Claims

1. A line press test leak device, characterized by, The first mechanical hand (M), the second mechanical hand (N) and a valve, One end of the detected pipeline (5) can be sealed and clamped by the first mechanical hand (M), and the other end of the detected pipeline (5) can be sealed and clamped by the second mechanical hand (N), The medium output end of the valve communicates with the accommodation space in the detected pipeline (5), and through the valve, the detection medium can be delivered to the accommodation space of the detected pipeline (5), and whether the detected pipeline (5) leaks can be judged by whether the detection medium leaks in the accommodation space of the detected pipeline (5).

2. The line press leak detection apparatus of claim 1, wherein, Further comprising a connecting seat, The first mechanical hand (M) and the second mechanical hand (N) are respectively fixedly connected to the connecting seat.

3. The line press leak detection apparatus of claim 2, wherein, Further comprising a hinge (2) and a lock buckle (3), The connecting seat comprises a first connecting seat (1) and a second connecting seat (4), The first mechanical hand (M) is connected to the second connecting seat (4), and the second mechanical hand (N) is connected to the first connecting seat (1); One side of the first connecting seat (1) and the second connecting seat (4) are connected together through the hinge (2), so that the first connecting seat (1) and the second connecting seat (4) can rotate with the hinge (2) as the center of rotation; The other side of the first connecting seat (1) and the second connecting seat (4) are detachably connected together through the lock buckle (3), so that when the first connecting seat (1) and the second connecting seat (4) are connected together through the lock buckle (3), the first mechanical hand (M) and the second mechanical hand (N) can clamp a flat detected pipeline (5); when the other side of the first connecting seat (1) and the second connecting seat (4) are not connected together through the lock buckle (3), the first mechanical hand (M) and the second mechanical hand (N) can clamp a detected pipeline (5) at a set angle, wherein the included angle of the detected pipeline (5) is equal to the included angle between the first connecting seat (1) and the second connecting seat (4).

4. The pipeline pressure detection device according to claim 3, wherein A second limiting groove (21) and a third limiting groove (49) are formed on the first connecting seat (1), A first limiting groove (20) and a fourth limiting groove (48) are formed on the second connecting seat (4), The first mechanical hand (M) can linearly move on the second connecting seat (4) along the first limiting groove (20) and the fourth limiting groove (48) of the second connecting seat (4); The second mechanical hand (N) can linearly move on the first connecting seat (1) along the second limiting groove (21) and the third limiting groove (49) of the first connecting seat (1).

5. The pipeline pressure detection device according to claim 3, wherein The first mechanical hand (M) comprises a first pipeline clamping mechanism, and / or the second mechanical hand (N) comprises a second pipeline clamping mechanism; The first pipeline clamping mechanism provides a first through hole, The free end of one end of the detected pipeline (5) after passing through the first through hole is sealed; The second pipeline clamping mechanism provides a second through hole (45), The free end of the test pipeline (5) after passing through the second through hole is sealed.

6. The pipeline pressure test device according to claim 5, characterized in that, The first pipeline clamping mechanism comprises a first pipe clamp (15), a second pipe clamp (16) and a first clamp (14), The lower side of the first pipe clamp (15) is provided with a first semicircular hole, and the upper side of the second pipe clamp (16) is provided with a second semicircular hole, when the first pipe clamp (15) and the second pipe clamp (16) are connected together by the first clamp (14), the first semicircular hole and the second semicircular hole together provide the first through hole; The second pipeline clamping mechanism comprises a third pipe clamp (29), a fourth pipe clamp (30) and a second clamp (38), The lower side of the third pipe clamp (29) is provided with a third semicircular hole, and the upper side of the fourth pipe clamp (30) is provided with a fourth semicircular hole, when the third pipe clamp (29) and the fourth pipe clamp (30) are connected together by the second clamp (38), the third semicircular hole and the fourth semicircular hole together provide the second through hole.

7. The line press test leak device of claim 6, wherein, Further comprising a first connecting piece (6), a first bottom connecting piece (17), a second connecting piece (7) and a second bottom connecting piece (32), The first mechanical hand (M) is connected to the second connecting seat (4) through the first connecting piece (6), and the first bottom connecting piece (17) is fixedly connected to the first connecting piece (6); The second mechanical hand (N) is connected to the first connecting seat (1) through the second connecting piece (7), and the second bottom connecting piece (32) is fixedly connected to the second connecting piece (7); The second pipe clamp (16) is connected to the first bottom connecting piece (17), The fourth pipe clamp (30) is connected to the second bottom connecting piece (32).

8. The line press test leak device of claim 7, wherein, Further comprising a first boss, a first limiting block, a second boss and a second limiting block (59), The first boss is fixedly connected to the bottom of the second pipe clamp (16), so that the first boss forms a first flange (18) and a second flange (76) in the bottom along the axial direction relative to the second pipe clamp (16), and forms a first limiting step and a second limiting step in the bottom along the radial direction relative to the second pipe clamp (16); the first limiting block is fixedly connected to the bottom of the first boss; The second boss is fixedly connected to the bottom of the fourth pipe clamp (30), so that the second boss forms a third flange (31) and a fourth flange (35) in the bottom along the axial direction relative to the second pipe clamp (16), and forms a third limiting step and a fourth limiting step in the bottom along the radial direction relative to the second pipe clamp (16); the second limiting block (59) is fixedly connected to the bottom of the second boss; The first bottom connecting piece (17) is provided with a first accommodating hole, which is a first stepped hole, and includes a first section hole and a second section hole. First and second limiting bosses are formed on the opening side of the first stepped hole. The radial dimension of the second section hole is smaller than that of the first section hole. The first section hole is matched with the shape of the first boss, and the second section hole is matched with the shape of the second limiting block; The second bottom connecting piece (32) is provided with a second accommodating hole, which is a second stepped hole, and includes a third section hole (64) and a fourth section hole (65). Third and fourth limiting bosses (62) and (63) are formed on the opening side of the second stepped hole. The radial dimension of the fourth section hole (65) is smaller than that of the third section hole (64). The third section hole (64) is matched with the shape of the second boss, and the fourth section hole (65) is matched with the shape of the second limiting block (59); The first clamp (14) is arranged above the first pipe clamp (15) by top pressing. A first hook (19) is formed on the free end of the first clamping arm (39) of the first clamp (14), and a second hook (77) is formed on the free end of the second clamping arm (40) of the first clamp (14). The first hook (19) abuts against the bottom of the first flange (18), and the second hook (77) abuts against the bottom of the second flange (76). The second clamp (38) is arranged above the third pipe clamp (29) by top pressing. A third hook (34) is formed on the free end of the third clamping arm (28) of the second clamp (38), and a fourth hook (36) is formed on the free end of the fourth clamping arm (37) of the second clamp (38). The third hook (34) abuts against the bottom of the third flange (31), and the fourth hook (36) abuts against the bottom of the fourth flange (35).

9. The line press test leak device of claim 8, wherein, First, second, third, and fourth protruding point positions are further included, The first and second protruding point positions are arranged at the bottom of the horizontal arm of the first clamp (14) and on the top of the first pipe clamp (15). A first recessed point position is arranged at a position corresponding to the first protruding point position, and a second recessed point position is arranged at a position corresponding to the second protruding point position. The first recessed point position is matched with the first protruding point position, and the second recessed point position is matched with the second protruding point position. The third protruding point (41) and the fourth protruding point (42) are arranged at the bottom of the horizontal arm of the second clamp (38) and at the top of the third pipe clamp (29); a third recessed point (60) is arranged at a position corresponding to the third protruding point (41), and a fourth recessed point (61) is arranged at a position corresponding to the fourth protruding point (42); the third recessed point (60) is matched with the third protruding point (41), and the fourth recessed point (61) is matched with the fourth protruding point (42).

10. The line press test leak device of claim 6, wherein, Further comprising a first tightening screw (12), a second tightening screw (13), a third tightening screw (26) and a fourth tightening screw (27), The horizontal arm of the first clamp (14) is provided with a first screw hole and a second screw hole, the foot of the first tightening screw (12) is arranged to abut against the top of the first pipe clamp (15) after passing through the first screw hole, and the foot of the second tightening screw (13) is arranged to abut against the top of the first pipe clamp (15) after passing through the second screw hole; The horizontal arm of the second clamp (38) is provided with a third screw hole and a fourth screw hole, the foot of the third tightening screw (26) is arranged to abut against the top of the third pipe clamp (29) after passing through the third screw hole, and the foot of the fourth tightening screw (27) is arranged to abut against the top of the third pipe clamp (29) after passing through the fourth screw hole.

11. The line press test leak device of claim 7, wherein, Further comprising a third connecting piece (8), a first lead screw (10), a first lead screw passing shaft (55), a fourth connecting piece (24), a second lead screw (23) and a second lead screw passing shaft (58), The third connecting piece (8) comprises a first horizontal part and a first vertical part, the first vertical part is fixedly connected to the first horizontal part, the first horizontal part is fixedly connected to the first connecting piece (6), the first lead screw passing shaft (55) is fixedly arranged on the first vertical part through an eighth connecting piece (69), and one end of the first lead screw (10) is clamped to one end of the pipe under test (5) after passing through the passing hole of the first lead screw passing shaft (55); The fourth connecting piece (24) comprises a second horizontal part and a second vertical part, the second vertical part is fixedly connected to the second horizontal part, the second horizontal part is fixedly connected to the second connecting piece (7), the second lead screw passing shaft (58) is fixedly arranged on the second vertical part through a sixth connecting piece (50), and one end of the second lead screw (23) is clamped to the other end of the pipe under test (5) after passing through the passing hole of the second lead screw passing shaft (58).

12. The line press test leak device of claim 11, wherein, Further comprising a first pipe plug (54) and a second pipe plug (53), One end of the first pipe plug (54) is fixedly connected to the first lead screw (10) for clamping one end of the pipe under test (5), and the other end of the first pipe plug (54) is plugged into one end of the pipe under test (5); One end of the second pipe plug (53) is fixedly connected to the second lead screw (23) for clamping one end of the inspected pipeline (5), and the other end of the second pipe plug (53) is plugged into the other end of the inspected pipeline (5); The medium output end is arranged on the first pipe plug (54) and the second pipe plug (53).

13. The line press test leak device of claim 12, wherein, Further comprising a first supporting member (11) and a second supporting member (25), The first pipe plug (54) is fixedly arranged on the first supporting member (11), The second pipe plug (53) is fixedly arranged on the second supporting member (25).

14. The pipeline pressure test leak detection device according to claim 12, wherein, The first pipe plug (54) is first tapered, and the first pipe plug (54) is plugged into one end of the inspected pipeline (5) through the side with smaller diameter; The second pipe plug (53) is second tapered, and the second pipe plug (53) is plugged into the other end of the inspected pipeline (5) through the side with smaller diameter.

15. The line press test leak device of claim 13, wherein, Further comprising a third lead screw penetrating shaft (57), a first limiting shaft sleeve (46), a fifth connecting member (47), a fourth lead screw penetrating shaft (56), a second limiting shaft sleeve (51) and a seventh connecting member (52), The third lead screw penetrating shaft (57) is arranged on the first supporting member (11) through the first limiting shaft sleeve (46) and the fifth connecting member (47), and the first lead screw (10) further penetrates the third lead screw penetrating shaft (57); The fourth lead screw penetrating shaft (56) is arranged on the second supporting member (25) through the second limiting shaft sleeve (51) and the seventh connecting member (52), and the second lead screw (23) further penetrates the fourth lead screw penetrating shaft (56).

16. The line press test leak device of claim 13, wherein, The valve comprises a first needle valve (44), a first pressurizing pipe, a second needle valve (33) and a second pressurizing pipe (68), The first supporting member (11) is provided with a first needle valve accommodating groove, the first needle valve (44) is arranged in the first needle valve accommodating groove through the foot portion, the first needle valve (44) is provided with a first medium accommodating hole, the first supporting member is provided with a second medium accommodating hole and a seventh medium accommodating hole, the first pressurizing pipe is fixedly arranged in the first pipe plug (54), the second pressurizing pipe is provided with a fourth medium accommodating hole in the inside, the first pressurizing port of the first needle valve (44), the first medium accommodating hole, the second medium accommodating hole, the third medium accommodating hole and the fourth medium accommodating hole are in communication, and the inside of the inspected pipeline (5) is in communication; The second supporting piece (25) is provided with a second needle valve accommodating groove (71), the second needle valve (33) is arranged in the second needle valve accommodating groove (71) through a foot portion, the second needle valve (33) is provided with a fifth medium accommodating hole (72), the second supporting piece (25) is provided with a sixth medium accommodating hole (73) and a seventh medium accommodating hole (74), the second pressurizing pipe (68) is fixedly arranged in the inside of the second pipe plug (53), an eighth medium accommodating hole (75) is arranged in the inside of the second pressurizing pipe (68), the second pressurizing port (70), the fifth medium accommodating hole (72), the sixth medium accommodating hole (73), the seventh medium accommodating hole (74) and the eighth medium accommodating hole (75) of the second needle valve (33) are communicated and communicated with the inside of the detected pipeline (5).

17. The line press test leak device of claim 11, wherein, Further comprising a first hand wheel (9) and a second hand wheel (22), The output shaft of the first hand wheel (9) is fixedly connected to the first lead screw (10), The output shaft of the second hand wheel (22) is fixedly connected to the second lead screw (23).

18. The pipeline pressure test leak detection device according to claim 8, characterized in that, The bottom of the first limiting block is chamfered on both sides, The bottom of the second limiting block (59) is chamfered on both sides.

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