Piston sealing device of hydrogen compressor

Abstract

The utility model relates to the technical field of hydrogen compressors, in particular to a piston sealing device of a hydrogen compressor, which is characterized in that an adjusting groove is arranged on the side wall of a piston body, and connecting grooves are arranged on the upper inner wall and the lower inner wall of the adjusting groove; the upper and lower ends of the rubber sleeve are respectively arranged in the connecting grooves; the abutting assembly is arranged in the adjusting groove and abuts against the rubber sleeve in a matched mode. The connecting assembly is arranged on the piston body and connected with the upper end and the lower end of the rubber sleeve in a matched mode. The two-way lead screw is driven to rotate through the adjusting screw rod, so that the upper arc-shaped rod and the lower arc-shaped rod drive the corresponding adjusting rods to move reversely, the outer ends of the adjusting rods abut against the rubber sleeve conveniently, the diameter of the rubber sleeve is adjusted, the sealing performance of the piston body is guaranteed, and meanwhile dismounting by operators is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen compressors, in particular to a piston sealing device of a hydrogen compressor. Background Art

[0002] Most of the pistons in existing hydrogen compressors are of a wooden plug structure, which results in the inability to achieve both sealing and easy disassembly. Therefore, a piston sealing device for a hydrogen compressor is urgently needed to solve the above problem. Utility Model Content

[0003] The purpose of the utility model is to provide a piston sealing device for a hydrogen compressor in view of the defects and shortcomings of the prior art, and the technical features thereof can solve the above problems.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: it comprises:

[0005] A piston body, wherein an adjusting groove is provided on the side wall of the piston body, and connecting grooves are provided on the upper and lower inner walls of the adjusting groove;

[0006] The rubber sleeve is a cylindrical structure with upper and lower ends opened, and the upper and lower ends of the rubber sleeve are respectively arranged in the connecting groove;

[0007] A resistance component, wherein the resistance component is arranged in the adjustment groove, and the resistance component and the rubber sleeve are arranged in a resistance manner;

[0008] The connecting component is arranged on the piston body, and the connecting component is cooperatively connected with the upper and lower ends of the rubber sleeve.

[0009] By adopting the above design scheme, the rubber sleeve is easily installed on the piston body using the connecting assembly, and then the diameter of the rubber sleeve is adjusted through the abutment assembly, so that the inner wall of the rubber sleeve abuts against the inner wall of the piston hole, ensuring the sealing of the piston body and facilitating disassembly by the operator.

[0010] Preferably, the conflicting component comprises:

[0011] There are several adjusting rods, the inner ends of the several adjusting rods are screwed on the inner wall of the adjusting groove by means of hinge seats, and the rod wall of the adjusting rod is provided with an adjusting hole, and the other end of the adjusting rod is movably abutted against the inner wall of the rubber sleeve;

[0012] There are several arc-shaped rods, and the ends of the several arc-shaped rods are movably inserted into two adjacent adjustment holes respectively;

[0013] Bidirectional screw rods, wherein there are several bidirectional screw rods, the bottom ends of the several bidirectional screw rods are respectively screwed to the bottom surface of the adjustment groove by bearings, and the upper and lower arc rods are respectively screwed to the bidirectional screw rods, and the top ends of the several bidirectional screw rods are all provided with a slot;

[0014] The adjusting screws are several in number, and the several adjusting screws are respectively threadedly screwed on the top surface of the piston body, and the bottom end of the adjusting screw is movably sleeved on the top end of the bidirectional screw rod by means of a buckle, and the buckle is slidably arranged in the slot.

[0015] By adopting the above design scheme, the rotation of the bidirectional lead screw is controlled by adjusting the screw rod, so that the arc rod moves to the corresponding position, thereby driving the adjusting rod to rotate, so that the end of the adjusting rod can contact the inner wall of the rubber sleeve, and the side wall of the rubber sleeve can contact the inner wall of the piston hole.

[0016] Preferably, the outer ends of the plurality of adjusting rods are all provided with abutment ends, so as to increase the contact surface between the adjusting rods and the rubber sleeves and ensure the sealing performance of the rubber sleeves.

[0017] Preferably, both ends of the arc-shaped rods are provided with limit blocks to limit the position of the adjustment rod and prevent the ends of the arc-shaped rods from sliding out of the adjustment slots.

[0018] Preferably, the connection assembly comprises:

[0019] Cover plates, there are two cover plates, the two cover plates are movably sleeved on the upper and lower ends of the piston body, and a plurality of slots are opened at equal angles on the inner wall of the cover plates, the middle parts of the plurality of rotating rods are screwed into the slots by means of a rebound shaft, a stopper is provided at the top end of the rotating rod, the stopper movably abuts against the side wall of the piston body, and a contact ball is provided at the bottom end of the rotating rod, the contact ball movably abuts against the rubber sleeve;

[0020] There are several positioning screws, which pass through the side wall of the cover plate and are then threadedly connected to the piston body.

[0021] By adopting the above design, the cover plates are installed at the upper and lower ends of the piston body by using positioning screws, and the contact ball contacts the rubber sleeve through the cooperation of the rotating rod and the stopper, thereby sealing and fixing the rubber sleeve in the connecting groove.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] 1. Set up a resistance assembly, and drive the bidirectional screw rod to rotate through the adjusting screw rod, so that the upper and lower arc rods drive the corresponding adjusting rods to move in the opposite direction, so that the outer end of the adjusting rod can resist against the rubber sleeve, thereby adjusting the diameter of the rubber sleeve, ensuring the sealing of the piston body, and facilitating the disassembly of the operator;

[0024] 2. Set up a connection assembly, use the rotating rod and the stopper to cooperate so that the contact ball contacts the rubber sleeve, and then install the cover plate on the piston body through the positioning screw, so that the rubber sleeve is sealed and limited in the connection groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the utility model.

[0026] Figure 2 It is a structural schematic diagram of the piston body and the abutment assembly in the utility model.

[0027] Figure 3 It is a structural schematic diagram of an adjusting screw and a bidirectional lead screw in the utility model.

[0028] Figure 4 It is a structural schematic diagram of the connecting component in the utility model.

[0029] Description of reference numerals:

[0030] Piston body 1, adjusting groove 2, connecting groove 3, rubber sleeve 4, resistance component 5, connecting component 6, adjusting rod 7, adjusting hole 8, arc rod 9, bidirectional screw 10, slot 11, adjusting screw 12, buckle 13, resistance end 14, limit block 15, cover plate 16, slot 17, rotating rod 18, stopper 19, resistance ball 20, positioning screw 21. DETAILED DESCRIPTION

[0031] The utility model is further described below in conjunction with the accompanying drawings.

[0032] like Figure 1 -- Figure 4 As shown, this embodiment adopts the following technical solution: it includes:

[0033] A piston body 1, wherein an adjusting groove 2 is provided on the side wall of the piston body 1, and connecting grooves 3 are provided on the upper and lower inner walls of the adjusting groove 2, and the diameter of the piston body 1 is smaller than the aperture of the piston hole;

[0034] The rubber sleeve 4 is a cylindrical structure with upper and lower ends opened, and the upper and lower ends of the rubber sleeve 4 are respectively arranged in the connecting groove 3, and the rubber sleeve 4 has good deformation performance;

[0035] The resistance component 5 is arranged in the adjustment groove 2, and the resistance component 5 and the rubber sleeve 4 are arranged in a resistance manner. The diameter of the rubber sleeve 4 is adjusted by the resistance component 5, so that the rubber sleeve 4 is in resistance against the inner wall of the piston hole to ensure the sealing of the piston body 1. The resistance component 5 includes:

[0036] The adjusting rod 7 is a plurality of adjusting rods 7, the inner ends of the plurality of adjusting rods 7 are screwed to the inner wall of the adjusting groove 2 by means of a hinge seat, and an adjusting hole 8 is provided through the rod wall of the adjusting rod 7, and the other end of the adjusting rod 7 is movably in contact with the inner wall of the rubber sleeve 4, and the outer end of the adjusting rod 7 is in contact with the inner wall of the rubber sleeve 4 by adjusting the angle of the adjusting rod 7, so as to change the diameter of the rubber sleeve 4;

[0037] The arc rod 9 is a plurality of arc rods 9, and the ends of the arc rods 9 are respectively movably inserted into two adjacent adjustment holes 8. The movement of the arc rod 9 drives the corresponding two adjustment rods 7 to rotate. The outer ends of the plurality of adjustment rods 7 are provided with abutment ends 14 to increase the contact surface between the adjustment rod 7 and the rubber sleeve 4 to ensure the sealing of the rubber sleeve 4. The two ends of the plurality of arc rods 9 are provided with limit blocks 15 to limit the position of the adjustment rod 7 and prevent the ends of the arc rods 9 from sliding out of the adjustment slot 2.

[0038] Bidirectional screw rods 10, wherein there are several bidirectional screw rods 10, the bottom ends of the several bidirectional screw rods 10 are respectively screwed to the bottom surface of the adjustment groove 2 by bearings, and the upper and lower arc rods 9 are respectively screwed to the bidirectional screw rods 10, and the top ends of the several bidirectional screw rods 10 are provided with a card slot 11, and the bidirectional screw rods 10 are used to facilitate the reverse movement of the arc rods 9 on the upper and lower sides;

[0039] The adjusting screw 12 is a plurality of adjusting screws 12, which are respectively threadedly connected to the top surface of the piston body 1, and the bottom end of the adjusting screw 12 is movably sleeved on the top end of the bidirectional screw 10 by means of a buckle 13, and the buckle 13 is slidably arranged in the slot 11. By rotating the adjusting screw 12, the bidirectional screw 10 is driven to rotate by the cooperation of the buckle 13 and the slot 11, so that after the end of the adjusting screw 12 contacts the top surface of the piston body 1, the adjusting rod 7 is in a horizontal position, thereby ensuring the sealing of the piston body 1;

[0040] The connecting component 6 is arranged on the piston body 1, and the connecting component 6 is matched and connected with the upper and lower ends of the rubber sleeve 4. The connecting component 6 includes:

[0041] A cover plate 16, wherein there are two cover plates 16, which are movably sleeved on the upper and lower ends of the piston body 1, and a plurality of slots 17 are provided on the inner wall of the cover plate 16 at equal angles. The middle parts of the plurality of rotating rods 18 are screwed into the slots 17 by means of a rebound shaft. A stopper 19 is provided at the top of the rotating rod 18, and the stopper 19 movably abuts against the side wall of the piston body 1. A contact ball 20 is provided at the bottom end of the rotating rod 18, and the contact ball 20 movably abuts against the rubber sleeve 4. After the cover plate 16 is movably sleeved on the piston body 1, the stopper 19 contacts the piston body 1, thereby driving the rotating rod 18 to rotate, so that the contact ball 20 abuts against the rubber sleeve 4, and the end of the rubber sleeve 4 is fixed in the connecting groove 3.

[0042] There are several positioning screws 21 . After passing through the side wall of the cover plate 16 , the positioning screws 21 are threadedly connected to the piston body 1 , so as to facilitate fixing the cover plate 16 to the piston body 1 .

[0043] When using the utility model, the operator first movably sets the rubber sleeve 4 on the piston body 1, and the upper and lower ends of the rubber sleeve 4 are placed in the connecting groove 3, and then the two cover plates 16 are movably set on the piston body 1, so that the stopper 19 abuts on the piston body 1, so that the rotating rod 18 rotates, so that the abutment ball 20 abuts on the rubber sleeve 4, so that the rubber sleeve 4 is fixed in the connecting groove 3, and then the cover plate 16 is fixed to the piston body 1 by the positioning screw 21. At this time, the piston body 1 is placed in the piston hole, and the end of the adjusting screw 12 is rotated. The adjusting screw 12 drives the corresponding bidirectional screw 10 to rotate through the cooperation of the buckle 13 and the slot 11, so that the arc rods 9 on the upper and lower sides drive the corresponding adjusting rod 7 to rotate in the opposite direction, and the outer end of the adjusting rod 7 abuts on the outer wall of the rubber sleeve 4, so that the rubber sleeve 4 abuts on the inner wall of the piston hole, and the end of the adjusting screw 12 abuts on the top surface of the piston body 1. The above is the installation process of the piston body 1.

[0044] After adopting the above structure, the beneficial effects of this specific implementation are as follows:

[0045] 1. A resistance assembly 5 is provided, and the bidirectional screw rod 10 is driven to rotate by the adjusting screw rod 12, so that the upper and lower arc rods 9 drive the corresponding adjusting rods 7 to move in opposite directions, so that the outer end of the adjusting rod 7 is in contact with the rubber sleeve 4, thereby adjusting the diameter of the rubber sleeve 4, ensuring the sealing of the piston body 1, and facilitating the disassembly of the operator;

[0046] 2. Set up the connecting assembly 6, use the rotating rod 18 and the stopper 19 to make the contact ball 20 contact the rubber sleeve 4, and then install the cover plate 16 on the piston body 1 through the positioning screw 21, so as to seal the rubber sleeve 4 in the connecting groove 3.

[0047] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A piston sealing device for a hydrogen compressor, characterized in that: It contains: A piston body (1), wherein an adjusting groove (2) is provided on the side wall of the piston body (1), and connecting grooves (3) are provided on the upper and lower inner walls of the adjusting groove (2); A rubber sleeve (4), wherein the rubber sleeve (4) is a cylindrical structure with openings at both ends, and the upper and lower ends of the rubber sleeve (4) are respectively arranged in the connecting groove (3); A resistance component (5), wherein the resistance component (5) is arranged in the adjustment groove (2), and the resistance component (5) and the rubber sleeve (4) are arranged in a resistance manner; A connecting component (6) is arranged on the piston body (1), and the connecting component (6) is cooperatively connected with the upper and lower ends of the rubber sleeve (4).

2. A piston sealing device for a hydrogen compressor according to claim 1, characterized in that: The conflicting component (5) comprises: There are a plurality of adjusting rods (7), the inner ends of the plurality of adjusting rods (7) are screwed to the inner wall of the adjusting groove (2) by means of a hinge seat, and an adjusting hole (8) is provided through the rod wall of the adjusting rod (7), and the other end of the adjusting rod (7) is movably in contact with the inner wall of the rubber sleeve (4); There are several arc-shaped rods (9), and the ends of the several arc-shaped rods (9) are movably inserted into two adjacent adjustment holes (8); A bidirectional screw rod (10), wherein the bidirectional screw rod (10) is in plurality, the bottom ends of the plurality of bidirectional screw rods (10) are respectively screwed to the bottom surface of the adjustment groove (2) by means of bearings, and the upper and lower arc-shaped rods (9) are respectively screwed to the bidirectional screw rod (10), and the top ends of the plurality of bidirectional screw rods (10) are respectively provided with a clamping groove (11); The adjusting screw (12) is in the form of a plurality of adjusting screws (12), each of which is threadedly connected to the top surface of the piston body (1), and the bottom end of the adjusting screw (12) is movably sleeved on the top end of the bidirectional screw rod (10) by means of a buckle (13), and the buckle (13) is slidably arranged in the clamping groove (11).

3. A piston sealing device for a hydrogen compressor according to claim 2, characterized in that: The outer ends of the plurality of adjusting rods (7) are all provided with abutment ends (14).

4. A piston sealing device for a hydrogen compressor according to claim 2, characterized in that: Limit blocks (15) are provided at both ends of the plurality of arc-shaped rods (9).

5. The piston sealing device of a hydrogen compressor according to claim 1, characterized in that: The connecting component (6) comprises: A cover plate (16), wherein the cover plates (16) are two in number, and the two cover plates (16) are movably sleeved on the upper and lower ends of the piston body (1), and a plurality of slots (17) are provided on the inner wall of the cover plate (16) at equal angles, and the middle parts of the plurality of rotating rods (18) are screwed into the slots (17) by means of a rebound rotating shaft, and a stopper (19) is provided at the top end of the rotating rod (18), and the stopper (19) movably contacts the side wall of the piston body (1), and a contact ball (20) is provided at the bottom end of the rotating rod (18), and the contact ball (20) movably contacts the rubber sleeve (4); The positioning screws (21) are multiple in number. After passing through the side wall of the cover plate (16), the multiple positioning screws (21) are screwed onto the piston body (1) through threads.

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