Connecting structure of high-pressure extension pipe

Abstract

The utility model belongs to the field of high-pressure extension pipes, and particularly relates to a high-pressure extension pipe connecting structure which comprises a high-pressure extension pipe body, a first connecting sleeve is fixedly connected to the outer side of the high-pressure extension pipe body, a second connecting sleeve is in contact with the upper end of the first connecting sleeve, and a connecting pipe is fixedly connected to the interior of the second connecting sleeve. The connecting pipe makes contact with the high-pressure extension pipe body, a first annular sleeve is fixedly connected to the outer side of the first connecting sleeve, and a second annular sleeve makes contact with the upper end of the first annular sleeve. By designing the clamping groove, the sliding rod, the pull block, the supporting ring, the spring, the sliding groove and other components, the sliding rod is pulled to move, after the sliding rod moves to the designated position, the first connecting sleeve is moved to drive the high-pressure extension pipe body and the sliding rod to the designated position of the second connecting sleeve, then the sliding rod is moved into the clamping groove, and then the device is connected; and the device connection is stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to high pressure extension pipe technical field, concretely is a kind of high pressure extension pipe's connecting structure. BACKGROUND

[0002] High pressure extension pipe is a kind of pipe for conveying high-pressure liquid or gas, high pressure extension pipe needs to select appropriate specification and material according to actual situation when using, the connecting structure of high pressure extension pipe refers to the device that high pressure extension pipe can be connected, for example, the utility model patent for patent authorized announcement No.CN215387016U discloses a kind of medical extension pipe and needle cylinder's connecting structure, including medical extension pipe and needle cylinder;Medical extension pipe includes connector and hose, connector is formed into connecting hole, connector one end is first connecting part, first connecting part is axially concave and forms U-shaped clamping groove, first connecting part outer wall is provided with elastic connecting band, and elastic connecting band is provided with clamping hole, connector other end is second connecting part, and second connecting part is fixedly connected with hose;Needle cylinder includes nipple, nipple is radially protruding and forms clamping post, the diameter of clamping post is equal to or slightly smaller than the width of U-shaped clamping groove, nipple is inserted into the connecting hole on connector, and the end of clamping post is inserted into the clamping hole on elastic connecting band and is fixed.The medical extension pipe of the utility model is connected with needle cylinder, and medical extension pipe is not easy to separate from needle cylinder.In prior art, when device is used, device connection is through elastic connection, leading to unstable device connection, and when device is used, device does not seal mechanism, the connection of first connecting sleeve and second connecting sleeve is inconvenient to seal, liquid may leak in the connection of first connecting sleeve and second connecting sleeve, leading to inconvenient use of device. UTILITY MODEL CONTENTS

[0003] The utility model discloses a kind of high pressure extension pipe's connecting structure, solve when device is used, device connection is through elastic connection, leading to unstable device connection, and when device is used, device does not seal mechanism, the connection of first connecting sleeve and second connecting sleeve is inconvenient to seal, first connecting sleeve and second connecting sleeve The connection of possibly having liquid leakage in the connection of first connecting sleeve and second connecting sleeve, leading to the problem of inconvenient use of device.

[0004] In order to achieve the above object, the utility model provides the following technical scheme: A connecting structure of high pressure extension pipe, first connecting sleeve is fixedly connected with the outside of high pressure extension pipe main part, the upper end of first connecting sleeve is contacted with second connecting sleeve, the inside of second connecting sleeve is fixedly connected with connecting pipe, connecting pipe is contacted with high pressure extension pipe main part, the outside of first connecting sleeve is fixedly connected with first annular cover, the upper end of first annular cover is contacted with second annular cover, second annular cover is fixedly connected with second connecting sleeve, the lower end of second annular cover is fixedly connected with fixed sleeve, fixed sleeve is contacted with first annular cover, the inside of first annular cover is provided with limit mechanism, the inside of first connecting sleeve is provided with sealing mechanism.

[0005] Preferably, the limit mechanism includes a clamping groove, the inside of the fixed sleeve is provided with a clamping groove, the inside of the clamping groove is slidably connected with a slide rod, one end of the slide rod away from the clamping groove is fixedly connected with a pull block, the pull block is in contact with the first annular cover, the outside of the slide rod is fixedly connected with a support ring, the inside of the first annular cover is provided with a spring, the inside of the first annular cover is provided with a sliding groove, and the first annular cover is slidably connected with the slide rod. By pulling the slide rod to move, the slide rod moves to the designated position, the first connecting sleeve drives the high pressure extension pipe main body and the slide rod to the designated position of the second connecting sleeve, and then the slide rod is moved into the clamping groove, so that the device is connected and the device is connected stably.

[0006] Preferably, one end of the spring is fixedly connected with the support ring, and the other end of the spring is fixedly connected with the first annular cover. By designing the spring, the support ring has a spring force.

[0007] Preferably, the inside of the sliding groove is slidably connected with a guide block, and the guide block is fixedly connected with the support ring. By designing the guide block, the slide rod can be guided.

[0008] Preferably, the sealing mechanism includes a screw rod, the inside of the first connecting sleeve is threadedly connected with the screw rod, the lower end of the screw rod is fixedly connected with a handle, the outside of the screw rod is rotatably connected with a circular cover, the inside of the first connecting sleeve is in contact with a sliding sleeve, the sliding sleeve is fixedly connected with the circular cover, the inside of the first connecting sleeve is slidably connected with a guide rod, the guide rod is fixedly connected with the sliding sleeve, the upper end of the sliding sleeve is fixedly connected with a sealing sleeve, the sealing sleeve is in contact with the first connecting sleeve, and the sealing sleeve is in contact with the second connecting sleeve. By rotating the screw rod and the first connecting sleeve, the screw rod rotates to drive the sealing sleeve and other components to move, the sealing sleeve moves to contact the second connecting sleeve, so that the connection between the first connecting sleeve and the second connecting sleeve is sealed, preventing liquid from leaking at the connection between the first connecting sleeve and the second connecting sleeve, and making the device easy to use.

[0009] Preferably, a bearing is fixedly fitted inside the circular sleeve, and a screw is fixedly fitted inside the inner ring of the bearing. By designing the bearing, the screw can be supported to rotate.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This utility model designs components such as a slot, slide bar, pull block, support ring, spring, and sliding groove. Pulling the slide bar moves it to a designated position. After the slide bar moves to a designated position, the first connecting sleeve moves the high-pressure extension tube body and the slide bar to a designated position of the second connecting sleeve. Then, the slide bar moves into the slot, thereby connecting the device and making the connection stable.

[0012] 2. This utility model designs components such as a screw, handle, circular sleeve, bearing, sliding sleeve, and guide rod. Rotating the screw causes threaded movement between the screw and the first connecting sleeve. The rotation of the screw drives the sealing sleeve and other components to move. The sealing sleeve moves and contacts the second connecting sleeve, thereby sealing the connection between the first and second connecting sleeves and preventing liquid leakage at the connection between the first and second connecting sleeves, making the device easy to use. Attached Figure Description

[0013] Figure 1 This is a perspective view of the overall structure of this utility model;

[0014] Figure 2 This utility model Figure 1 Partial sectional perspective view of the structure;

[0015] Figure 3 This utility model Figure 1 A front sectional view;

[0016] Figure 4 This utility model Figure 2 Enlarged view of point A;

[0017] Figure 5 This utility model Figure 2 Enlarged view of the sealing sleeve.

[0018] In the diagram: 1. High-pressure extension tube body; 2. First connecting sleeve; 3. Second connecting sleeve; 4. Connecting tube; 5. First annular sleeve; 6. Second annular sleeve; 7. Fixing sleeve; 8. Limiting mechanism; 81. Slot; 82. Slide rod; 83. Pull block; 84. Support ring; 85. Spring; 86. Sliding groove; 87. Guide block; 9. Sealing mechanism; 91. Screw; 92. Handle; 93. Circular sleeve; 94. Bearing; 95. Sliding sleeve; 96. Guide rod; 97. Sealing sleeve. Detailed Implementation

[0019] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] Please refer to Figures 1-5 , a connecting structure of high pressure extension pipe, including high pressure extension pipe body 1, the outer side of high pressure extension pipe body 1 is fixedly connected with first connecting sleeve 2, the upper end of first connecting sleeve 2 is contacted with second connecting sleeve 3, the inside of second connecting sleeve 3 is fixedly connected with connecting pipe 4, connecting pipe 4 is contacted with high pressure extension pipe body 1, the outer side of first connecting sleeve 2 is fixedly connected with first annular sleeve 5, the upper end of first annular sleeve 5 is contacted with second annular sleeve 6, second annular sleeve 6 is fixedly connected with second connecting sleeve 3, the lower end of second annular sleeve 6 is fixedly connected with fixed sleeve 7, fixed sleeve 7 is contacted with first annular sleeve 5, the inside of first annular sleeve 5 is provided with limiting mechanism 8, the inside of first connecting sleeve 2 is provided with sealing mechanism 9.

[0021] Please refer to Figure 4 , limiting mechanism 8 includes clamping groove 81, the inside of fixed sleeve 7 is provided with clamping groove 81, the inside of clamping groove 81 is slidably connected with slide rod 82, one end of slide rod 82 away from clamping groove 81 is fixedly connected with pull block 83, pull block 83 is contacted with first annular sleeve 5, the outer side of slide rod 82 is fixedly connected with support ring 84, the inside of first annular sleeve 5 is provided with spring 85, one end of spring 85 is fixedly connected with support ring 84, the other end of spring 85 is fixedly connected with first annular sleeve 5, by designing spring 85, support ring 84 has elastic force, the inside of first annular sleeve 5 is provided with sliding groove 86, the inside of sliding groove 86 is slidably connected with guide block 87, guide block 87 is fixedly connected with support ring 84, by designing guide block 87, slide rod 82 can be guided, first annular sleeve 5 is slidably connected with slide rod 82, by pulling slide rod 82 to move, after slide rod 82 moves to the specified position, first connecting sleeve 2 is moved to drive high pressure extension pipe body 1 and slide rod 82 to the specified position of second connecting sleeve 3, then slide rod 82 is moved into clamping groove 81, and then the device is connected, so that the device is connected stably.

[0022] Please refer to Figure 3 , Figure 5The sealing mechanism 9 comprises a screw rod 91, the inside of the first connecting sleeve 2 is threadedly connected with the screw rod 91, the lower end of the screw rod 91 is fixedly connected with a handle 92, the outer side of the screw rod 91 is rotationally connected with a circular sleeve 93, the inside of the circular sleeve 93 is fixedly sleeved with a bearing 94, the inside of the inner ring of the bearing 94 is fixedly sleeved with the screw rod 91, the bearing 94 can support the rotation of the screw rod 91, the inside of the first connecting sleeve 2 is in contact with a sliding sleeve 95, the sliding sleeve 95 is fixedly connected with the circular sleeve 93, the inside of the first connecting sleeve 2 is slidingly connected with a guide rod 96, the guide rod 96 is fixedly connected with the sliding sleeve 95, the upper end of the sliding sleeve 95 is fixedly connected with a sealing sleeve 97, the sealing sleeve 97 is in contact with the first connecting sleeve 2 and the second connecting sleeve 3, the screw rod 91 is threadedly moved with the first connecting sleeve 2 by being rotated, the sealing sleeve 97 and other components are moved by the rotation of the screw rod 91, the sealing sleeve 97 is moved to be in contact with the second connecting sleeve 3, and then the connecting position of the first connecting sleeve 2 and the second connecting sleeve 3 is sealed, so that liquid leakage of the connecting position of the first connecting sleeve 2 and the second connecting sleeve 3 is prevented, and the device is convenient to use.

[0023] The specific implementation process of the utility model is as follows: when the device is used, the handle 92 is rotated, the handle 92 is rotated to drive the screw rod 91 to rotate, the screw rod 91 is threadedly moved with the first connecting sleeve 2 by being rotated, and then the screw rod 91 generates relative displacement, the bearing 94 and the circular sleeve 93 are moved upwards by the rotation of the screw rod 91, the sliding sleeve 95 is moved upwards by the upward movement of the circular sleeve 93, the sealing sleeve 97 is moved upwards by the upward movement of the sliding sleeve 95, the sealing sleeve 97 is moved upwards to be in contact with the second connecting sleeve 3, and then the connecting position of the first connecting sleeve 2 and the second connecting sleeve 3 is sealed, so that liquid leakage of the connecting position of the first connecting sleeve 2 and the second connecting sleeve 3 is prevented, and the device is convenient to use.

[0024] The specific implementation process of the utility model is as follows: when the device is used, the handle 92 is rotated, the handle 92 is rotated to drive the screw rod 91 to rotate, the screw rod 91 is threadedly moved with the first connecting sleeve 2 by being rotated, and then the screw rod 91 generates relative displacement, the bearing 94 and the circular sleeve 93 are moved upwards by the rotation of the screw rod 91, the sliding sleeve 95 is moved upwards by the upward movement of the circular sleeve 93, the sealing sleeve 97 is moved upwards by the upward movement of the sliding sleeve 95, the sealing sleeve 97 is moved upwards to be in contact with the second connecting sleeve 3, and then the connecting position of the first connecting sleeve 2 and the second connecting sleeve 3 is sealed, so that liquid leakage of the connecting position of the first connecting sleeve 2 and the second connecting sleeve 3 is prevented, and the device is convenient to use.

[0025] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A connection structure of a high-pressure extension tube, comprising a high-pressure extension tube main body (1), characterized by: The outer side of the high-pressure extension pipe body (1) is fixedly connected with a first connecting sleeve (2), the upper end of the first connecting sleeve (2) is in contact with a second connecting sleeve (3), the inner side of the second connecting sleeve (3) is fixedly connected with a connecting pipe (4), the connecting pipe (4) is in contact with the high-pressure extension pipe body (1), the outer side of the first connecting sleeve (2) is fixedly connected with a first annular sleeve (5), the upper end of the first annular sleeve (5) is in contact with a second annular sleeve (6), the second annular sleeve (6) is fixedly connected with the second connecting sleeve (3), the lower end of the second annular sleeve (6) is fixedly connected with a fixing sleeve (7), the fixing sleeve (7) is in contact with the first annular sleeve (5), the inner side of the first annular sleeve (5) is provided with a limiting mechanism (8), and the inner side of the first connecting sleeve (2) is provided with a sealing mechanism (9).

2. The connecting structure of a high-pressure extension tube according to claim 1, characterized by: The limiting mechanism (8) comprises a clamping groove (81), the inner side of the fixing sleeve (7) is provided with the clamping groove (81), the inner side of the clamping groove (81) is slidably connected with a sliding rod (82), one end of the sliding rod (82) away from the clamping groove (81) is fixedly connected with a pulling block (83), the pulling block (83) is in contact with the first annular sleeve (5), the outer side of the sliding rod (82) is fixedly connected with a supporting ring (84), the inner side of the first annular sleeve (5) is provided with a spring (85), the inner side of the first annular sleeve (5) is provided with a sliding groove (86), and the first annular sleeve (5) is slidably connected with the sliding rod (82).

3. The connection structure of a high-pressure extension tube according to claim 2, characterized by: One end of the spring (85) is fixedly connected with the supporting ring (84), and the other end of the spring (85) is fixedly connected with the first annular sleeve (5).

4. The connection structure of a high-pressure extension tube according to claim 2, characterized by: The inner side of the sliding groove (86) is slidably connected with a guide block (87), and the guide block (87) is fixedly connected with the supporting ring (84).

5. The connection structure of a high-pressure extension tube according to claim 1, characterized by: The sealing mechanism (9) comprises a screw rod (91), the inner side of the first connecting sleeve (2) is threadedly connected with the screw rod (91), the lower end of the screw rod (91) is fixedly connected with a handle (92), the outer side of the screw rod (91) is rotatably connected with a circular sleeve (93), the inner side of the first connecting sleeve (2) is in contact with a sliding sleeve (95), the sliding sleeve (95) is fixedly connected with the circular sleeve (93), the inner side of the first connecting sleeve (2) is slidably connected with a guide rod (96), the guide rod (96) is fixedly connected with the sliding sleeve (95), the upper end of the sliding sleeve (95) is fixedly connected with a sealing sleeve (97), the sealing sleeve (97) is in contact with the first connecting sleeve (2), and the sealing sleeve (97) is in contact with the second connecting sleeve (3).

6. The connection structure of a high-pressure extension tube according to claim 5, characterized by: The inner side of the circular sleeve (93) is fixedly sleeved with a bearing (94), and the inner ring of the bearing (94) is fixedly sleeved with the screw rod (91).

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