Hydrogen cylinder connector capable of being quickly inserted and pulled

Abstract

The utility model discloses a hydrogen cylinder joint capable of being quickly inserted and pulled, which comprises a hydrogen cylinder body, a shut-off valve is arranged at the top of the hydrogen cylinder body, the surface of the shut-off valve is communicated with a connecting pipe, and an insertion pipe is inserted into the connecting pipe. A second spring is arranged to extrude a positioning block, then the top of the positioning block is clamped into a positioning hole, the effect of limiting a movable block is achieved, the stability of clamping one side of a clamping block into a clamping groove is further improved, the positioning block is pressed downwards, the positioning block is made to be separated from the interior of the positioning hole, and the positioning block is clamped into the clamping groove. Under the elastic action of a first spring, a movable block is bounced off, one side of a clamping block is conveniently separated from the interior of a clamping groove, an insertion pipe is conveniently pulled out of a connecting pipe, therefore, the insertion and extraction efficiency of the insertion pipe is improved, the connecting efficiency of the insertion pipe is improved, and meanwhile the problem that an existing hydrogen cylinder connector is generally mounted and dismounted through threaded connection, and the connecting efficiency is poor is solved. A user needs to rotate for multiple circles for operation, the connection is troublesome, and the connection efficiency is low.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen cylinders, in particular to a hydrogen cylinder connector which can be quickly plugged and unplugged. Background Art

[0002] Cylinders are steel cylinders used to store high-pressure oxygen, coal gas, liquefied petroleum gas, etc. Gas cylinders generally contain permanent gases, liquefied gases, or mixed gases. The management of gas cylinders by gas cylinder filling units, gas cylinder inspection units, gas cylinder users (including factories, laboratories, hospitals, schools, disease control centers, electronic rooms, clean rooms, industrial institutions, etc.), bottled gas and gas cylinder distributors needs to be improved urgently, and the safety management of the transportation and storage of gas cylinders should be strengthened. When liquid hydrogen is stored in a cylinder, it is generally called a hydrogen cylinder.

[0003] With respect to the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: the existing hydrogen cylinder connectors are generally installed and disassembled through threaded connections, which require users to rotate multiple circles to operate, making the connection more troublesome and the connection efficiency low; therefore, in order to solve the above problems, a quickly pluggable hydrogen cylinder connector is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a hydrogen cylinder connector that can be quickly plugged in and out, which has the advantages of being able to be quickly plugged in and out and improving the connection efficiency of the hydrogen cylinder connector, and solves the problem that the existing hydrogen cylinder connector is generally installed and disassembled through threaded connection, which requires the user to rotate multiple circles for operation, is troublesome to connect, and has low connection efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quickly pluggable hydrogen cylinder connector, comprising a hydrogen cylinder body, a shut-off valve is arranged on the top of the hydrogen cylinder body, a connecting pipe is connected to the surface of the shut-off valve, a cannula is inserted into the interior of the connecting pipe, a connecting end is connected to the right side of the cannula, an annular sealing plate is fixedly installed on the inner wall of the connecting pipe, a sealing gasket is arranged on one side of the annular sealing plate, the sealing gasket contacts the left side of the cannula, a card groove is opened on the surface of the cannula, side boxes are fixedly installed on both sides of the surface of the connecting pipe, a moving block is arranged inside the side box, limit blocks are fixedly installed on both sides of the moving block, and both sides of the inner cavity of the side box are opened A limiting groove is provided, the other side of the limiting block is located inside the limiting groove, a first spring is fixedly installed on one side of the moving block close to the connecting pipe, a clamping block is fixedly installed on the other side of the first spring, the other side of the clamping block extends to the inside of the connecting pipe and is clamped in the inside of the clamping groove, a bottom groove is provided at the bottom of the side box, a moving rod is fixedly installed at the bottom of the moving block, the bottom of the moving rod passes through the bottom groove and extends to the bottom of the side box, a positioning box is fixedly installed on the top of the moving block, a second spring is fixedly installed on the bottom of the inner cavity of the positioning box, a positioning block is fixedly installed on the top of the second spring, a positioning hole is provided at the top of the side box, and the top of the positioning block is clamped in the inside of the positioning hole.

[0006] The effects achieved by the above-mentioned components are as follows: by setting the bottom groove for limiting the moving rod, the stability of the moving block when the moving rod drives the moving block to move is improved; by setting the limiting groove and the limiting block to cooperate with each other to limit the moving block, the stability of the moving block when moving is improved; by setting the first spring for squeezing the card block, so that one side of the card block is clamped in the inside of the card slot, the insertion tube inside the connecting tube is limited, and it is convenient to insert the insertion tube into the inside of the connecting tube and fix it, thereby improving the plugging and unplugging efficiency of the insertion tube inside the connecting tube; by setting the second spring for squeezing the positioning block, so that the top of the positioning block is clamped in the inside of the positioning hole, the positioning block is limited, and the stability of one side of the card block being clamped in the inside of the card slot is further improved; the positioning block is pressed downward so that the positioning block is separated from the inside of the positioning hole; under the elastic force of the first spring, the moving block is bounced open, so that one side of the card block is conveniently separated from the inside of the card slot, and the insertion tube is conveniently pulled out from the inside of the connecting tube, thereby improving the plugging and unplugging efficiency of the insertion tube, and improving the connection efficiency of the insertion tube.

[0007] Preferably, the inner wall of the positioning box is provided with symmetrical anti-deflection grooves, and an anti-deflection block is fixedly mounted on the surface of the positioning block, and the anti-deflection block is located inside the anti-deflection grooves.

[0008] The effects achieved by the above components are: by setting the anti-deflection groove and the anti-deflection block to cooperate with each other to limit the positioning block, the stability of the positioning block during up and down movement is improved, and the positioning block is prevented from escaping from the interior of the positioning box.

[0009] Preferably, a positioning rod is fixedly mounted on one side of the moving block close to the clamping block, a positioning groove is provided inside the clamping block, and the other side of the positioning rod extends to the inside of the positioning groove.

[0010] The effect achieved by the above components is: by setting the positioning rod and the positioning slot to cooperate with each other to limit the movement of the card block, the card block is prevented from shifting under the elastic force of the first spring, resulting in one side of the card block being unable to be engaged with the inside of the card slot, and it is convenient to pull one side of the card block out from the inside of the card slot.

[0011] Preferably, a circular baffle is fixedly mounted on the surface of the moving rod, and the circular baffle is located at the bottom of the inner cavity of the side box, and the diameter of the circular baffle is greater than the width of the bottom groove.

[0012] The effect achieved by the above components is: by setting a circular baffle to limit the moving rod, the stability of the moving rod driving the moving block to move is improved, so that the card block can be accurately inserted into the card slot, thereby improving the fixation of the insert tube inside the connecting tube.

[0013] Preferably, an annular baffle is fixedly mounted on the surface of the insert tube, and the annular baffle is clamped on the right side of the connecting tube.

[0014] The effect achieved by the above components is: by setting the annular baffle to limit the insertion tube, the insertion depth of the insertion tube into the connecting tube is just right, further improving the contact sealing between the insertion tube and the sealing pad.

[0015] Preferably, an anti-slip sleeve is fixedly installed on the surface of the insertion tube and located on the right side of the annular baffle, and the surface of the anti-slip sleeve is provided with evenly distributed anti-slip strips.

[0016] The effect achieved by the above components is: by arranging the anti-slip sleeve and the anti-slip strip to cooperate with each other, it is convenient to hold the cannula, thereby facilitating the cannula to be inserted into the interior of the connecting tube or to be pulled out from the interior of the connecting tube.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] The utility model provides a bottom groove for limiting the moving rod, which improves the stability of the moving rod when the moving rod drives the moving block to move. The limiting groove and the limiting block cooperate with each other to limit the moving block, which improves the stability of the moving block when it moves. The first spring is provided to squeeze the clamping block, so that one side of the clamping block is clamped in the inside of the clamping groove, which plays a limiting role on the inserting tube inside the connecting tube, and facilitates the insertion and removal efficiency of the inserting tube inside the connecting tube. The second spring is provided to squeeze the positioning block, so that the top of the positioning block is clamped in The inside of the positioning hole plays a role of limiting the moving block, further improving the stability of one side of the card block being connected to the inside of the card slot, pressing the positioning block downward to make the positioning block disengage from the inside of the positioning hole, and under the elastic force of the first spring, the moving block is bounced open, making it convenient to disengage one side of the card block from the inside of the card slot, and convenient to pull out the cannula from the inside of the connecting pipe, thereby improving the plugging and unplugging efficiency of the cannula and the connection efficiency of the cannula, and at the same time solving the problem that the existing hydrogen cylinder joints are generally installed and disassembled through threaded connections, requiring users to rotate multiple circles to operate, and the connection is troublesome and the connection efficiency is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the shut-off valve structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the side box of the utility model;

[0022] Figure 4 For this utility model Figure 3 A partial enlarged view of the middle A;

[0023] Figure 5 This is a schematic diagram of the structure of the connecting pipe, the insert pipe and the annular sealing plate of the utility model.

[0024] In the figure: 1. Hydrogen cylinder body; 2. Shut-off valve; 3. Connecting pipe; 4. Insert pipe; 5. Anti-slip sleeve; 6. Connecting end; 7. Annular baffle; 8. Annular sealing plate; 9. Sealing gasket; 10. Side box; 11. Limiting groove; 12. Moving block; 13. Limiting block; 14. First spring; 15. Block; 16. Slot; 17. Bottom groove; 18. Moving rod; 19. Positioning box; 20. Second spring; 21. Positioning block; 22. Positioning hole; 23. Anti-deviation groove; 24. Anti-deviation block. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5 A quick-pluggable hydrogen cylinder connector comprises a hydrogen cylinder body 1, a shut-off valve 2 is arranged on the top of the hydrogen cylinder body 1, a connecting pipe 3 is connected to the surface of the shut-off valve 2, a cannula 4 is inserted in the interior of the connecting pipe 3, a connecting end 6 is connected to the right side of the cannula 4, an annular sealing plate 8 is fixedly installed on the inner wall of the connecting pipe 3, a sealing gasket 9 is arranged on one side of the annular sealing plate 8, the sealing gasket 9 contacts the left side of the cannula 4, a card groove 16 is provided on the surface of the cannula 4, side boxes 10 are fixedly installed on both sides of the surface of the connecting pipe 3, a moving block 12 is arranged inside the side box 10, and a limiting block 13 is fixedly installed on both sides of the moving block 12, and a limiting groove 11 is provided on both sides of the inner cavity of the side box 10, and the other side of the limiting block 13 is located in the limiting groove 11, a first spring 14 is fixedly installed on one side of the moving block 12 close to the connecting pipe 3, a clamping block 15 is fixedly installed on the other side of the first spring 14, the other side of the clamping block 15 extends to the inside of the connecting pipe 3 and is clamped in the inside of the clamping groove 16, a bottom groove 17 is opened at the bottom of the side box 10, a moving rod 18 is fixedly installed on the bottom of the moving block 12, the bottom of the moving rod 18 passes through the bottom groove 17 and extends to the bottom of the side box 10, a positioning box 19 is fixedly installed on the top of the moving block 12, a second spring 20 is fixedly installed on the bottom of the inner cavity of the positioning box 19, a positioning block 21 is fixedly installed on the top of the second spring 20, a positioning hole 22 is opened at the top of the side box 10, and the top of the positioning block 21 is clamped in the inside of the positioning hole 22.

[0027] Specifically, a symmetrical anti-deflection groove 23 is formed on the inner wall of the positioning box 19 , and an anti-deflection block 24 is fixedly mounted on the surface of the positioning block 21 . The anti-deflection block 24 is located inside the anti-deflection groove 23 .

[0028] The anti-deviation groove 23 and the anti-deviation block 24 cooperate with each other to limit the positioning block 21 , thereby improving the stability of the positioning block 21 during the up and down movement, and preventing the positioning block 21 from escaping from the interior of the positioning box 19 .

[0029] Specifically, a positioning rod is fixedly installed on one side of the moving block 12 close to the clamping block 15 , a positioning groove is provided inside the clamping block 15 , and the other side of the positioning rod extends to the inside of the positioning groove.

[0030] The positioning rod and the positioning slot cooperate with each other to limit the movement of the block 15, preventing the block 15 from shifting under the elastic force of the first spring 14, causing one side of the block 15 to be unable to be engaged with the inside of the slot 16, and facilitating the removal of one side of the block 15 from the inside of the slot 16.

[0031] Specifically, a circular baffle is fixedly mounted on the surface of the moving rod 18 , and the circular baffle is located at the bottom of the inner cavity of the side box 10 , and the diameter of the circular baffle is greater than the width of the bottom groove 17 .

[0032] The circular baffle is used to limit the moving rod 18, thereby improving the stability of the moving rod 18 when driving the moving block 12 to move, so that the clamping block 15 can be accurately inserted into the inside of the clamping slot 16, thereby improving the fixation of the insert tube 4 inside the connecting tube 3.

[0033] Specifically, an annular baffle 7 is fixedly mounted on the surface of the insert pipe 4 , and the annular baffle 7 is clamped on the right side of the connecting pipe 3 .

[0034] The annular baffle 7 is used to limit the insertion tube 4 so that the insertion depth of the insertion tube 4 into the connecting tube 3 is just right, thereby further improving the contact sealing between the insertion tube 4 and the sealing gasket 9.

[0035] Specifically, an anti-slip sleeve 5 is fixedly installed on the surface of the insertion tube 4 and located on the right side of the annular baffle 7, and the surface of the anti-slip sleeve 5 is provided with evenly distributed anti-slip strips.

[0036] The anti-slip sleeve 5 and the anti-slip strip cooperate with each other to facilitate holding the cannula 4 , thereby facilitating inserting the cannula 4 into the interior of the connecting tube 3 or pulling the cannula 4 out from the interior of the connecting tube 3 .

[0037] During use, when it is necessary to pull out the insert tube 4 from the interior of the connecting tube 3, first, it is necessary to press the positioning block 21 downward so that the top of the positioning block 21 is completely out of the positioning hole 22. At this time, under the elastic force of the first spring 14, the moving block 12 is bounced open, and the top of the positioning block 21 contacts the top of the inner cavity of the side box 10. Then, the moving block 12 is moved by the moving rod 18, so that the moving block 12 drives the clamping block 15 to move until one side of the clamping block 15 is completely stuck in the groove 16. At this time, the insert tube 4 can be directly pulled out from the interior of the connecting tube 3. When it is necessary to insert the insert tube 4 into the interior of the connecting tube 3, the insert tube 4 is first inserted into the interior of the connecting tube 3 so that the annular baffle 7 is clamped on the right side of the connecting tube 3. One side contacts with the sealing gasket 9, and the moving block 12 is moved by the moving rod 18, so that the moving block 12 drives the positioning box 19 and the positioning block 21 to move to the bottom of the positioning hole 22. When the positioning block 21 moves to the bottom of the positioning hole 22, the positioning block 21 is bounced upward by the elastic force of the second spring 20, so that the positioning block 21 is clamped in the inside of the positioning hole 22. At this time, one side of the block 15 abuts against the surface of the insert tube 4, and the first spring 14 is in a compressed state. The insert tube 4 needs to be gently rotated so that the slot 16 rotates to one side of the block 15, and the block 15 is bounced under the elastic force of the first spring 14. One side of the block 15 is clamped in the inside of the slot 16 to complete the insertion of the insert tube 4.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-pluggable hydrogen cylinder connector, comprising a hydrogen cylinder body (1), characterized in that: A shut-off valve (2) is arranged on the top of the hydrogen cylinder body (1); a connecting pipe (3) is connected to the surface of the shut-off valve (2); a cannula (4) is inserted into the interior of the connecting pipe (3); a connecting end (6) is connected to the right side of the cannula (4); an annular sealing plate (8) is fixedly installed on the inner wall of the connecting pipe (3); a sealing gasket (9) is arranged on one side of the annular sealing plate (8); the sealing gasket (9) contacts the left side of the cannula (4); a card slot (16) is provided on the surface of the cannula (4); side boxes (10) are fixedly installed on both sides of the surface of the connecting pipe (3); a moving block (12) is arranged inside the side box (10); a limiting block (13) is fixedly installed on both sides of the moving block (12); limiting grooves (11) are arranged on both sides of the inner cavity of the side box (10); the other side of the limiting block (13) is located inside the limiting groove (11); the moving block (12) is fixedly installed on both sides of the inner cavity of the side box (10); A first spring (14) is fixedly installed on one side of the moving block (12) close to the connecting pipe (3), a clamping block (15) is fixedly installed on the other side of the first spring (14), the other side of the clamping block (15) extends to the inside of the connecting pipe (3) and is clamped in the inside of the clamping groove (16), a bottom groove (17) is provided at the bottom of the side box (10), a moving rod (18) is fixedly installed on the bottom of the moving block (12), the bottom of the moving rod (18) passes through the bottom groove (17) and extends to the bottom of the side box (10), a positioning box (19) is fixedly installed on the top of the moving block (12), a second spring (20) is fixedly installed on the bottom of the inner cavity of the positioning box (19), a positioning block (21) is fixedly installed on the top of the second spring (20), a positioning hole (22) is provided at the top of the side box (10), and the top of the positioning block (21) is clamped in the inside of the positioning hole (22).

2. A quick-pluggable hydrogen cylinder connector according to claim 1, characterized in that: The inner wall of the positioning box (19) is provided with symmetrical anti-deflection grooves (23), and the surface of the positioning block (21) is fixedly mounted with an anti-deflection block (24), which is located inside the anti-deflection grooves (23).

3. A quick-pluggable hydrogen cylinder connector according to claim 1, characterized in that: A positioning rod is fixedly mounted on one side of the moving block (12) close to the clamping block (15); a positioning groove is provided inside the clamping block (15), and the other side of the positioning rod extends into the inside of the positioning groove.

4. A quick-pluggable hydrogen cylinder connector according to claim 1, characterized in that: A circular baffle is fixedly mounted on the surface of the moving rod (18), and the circular baffle is located at the bottom of the inner cavity of the side box (10), and the diameter of the circular baffle is greater than the width of the bottom groove (17).

5. The quick-pluggable hydrogen cylinder connector according to claim 1 is characterized in that: An annular baffle (7) is fixedly mounted on the surface of the insert tube (4), and the annular baffle (7) is clamped on the right side of the connecting tube (3).

6. A quick-pluggable hydrogen cylinder connector according to claim 1, characterized in that: An anti-slip sleeve (5) is fixedly mounted on the surface of the insertion tube (4) and located on the right side of the annular baffle (7), and the surface of the anti-slip sleeve (5) is provided with evenly distributed anti-slip strips.

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