Ethylene-propylene valve seat with double-sealing effect

Abstract

The utility model relates to the technical field of rubber products, in particular to an ethylene-propylene valve seat with a double-sealing effect, which comprises a valve seat, and the top end of the valve seat is fixedly connected with a top sealing seat. Firstly, an installation inserting piece at the top end of a top sealing seat is inserted into the inner wall of a locking module, then connection is completed by rotating a top rotating clamping piece in the locking module to be inserted into a clamping groove of a rotating connecting piece, and pipeline blocking of the valve seat is completed by overlapping and abutting a rubber ring on the periphery of a valve plate and a matched sealing rubber ring on the inner wall of the valve seat. Meanwhile, by rotating a locking adjusting knob, the locking adjusting knob abuts against the periphery of the top rotating clamping piece, static friction force is applied, so that friction locking of the top rotating clamping piece is achieved, and then locking of the rotating state of a rotating connecting piece clamping groove clamped to the bottom end of the top rotating clamping piece and a transmission rod sleeve is controlled; and lubricating oil is injected by opening the oil injection port, and the situation that the internal structure is unsmooth and difficult to control is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to rubber products technical field, concretely relates to a kind of EPDM valve seat with double sealing effect. BACKGROUND

[0002] EPDM valve seat is made of valve seat of EPDM, EPDM valve seat for short. EPDM is a kind of synthetic rubber, with excellent weather resistance, ozone resistance, chemical corrosion resistance and good electrical insulation performance, so it is widely used in various valves, especially in occasions requiring good sealing performance and durability.

[0003] The utility model discloses a kind of EPDM valve seat with double sealing effect, which is scientifically and reasonably designed, with the advantages of simple structure, strong sealing performance, convenient installation and easy implementation, and is a kind of EPDM valve seat with double sealing effect with higher innovation, but the device is not convenient to block the internal space during use, only supports two-end communication, needs to borrow other equipment to complete the on-off adjustment of pipeline, is more inconvenient, we propose a kind of EPDM valve seat with double sealing effect. UTILITY MODEL CONTENTS

[0004] In view of the problems in the prior art, the utility model provides an EPDM valve seat with double sealing effect.

[0005] The utility model solves the technical scheme that the utility model adopts adopts a kind of EPDM valve seat with double sealing effect, including valve seat, the top of the valve seat is fixedly connected with top sealing seat, the top of the top sealing seat is centrally penetrated and is fixedly connected with installation plug-in, the central place of the installation plug-in is rotatably connected with rotating connecting piece clamping groove, the top of the rotating connecting piece clamping groove is connected in the bottom of locking module by screw thread, the lateral wall of the locking module is rotatably connected with locking adjustment knob, the locking adjustment knob penetrates and is rotatably connected in the inside of oil filler neck one end of locking module;

[0006] The central place of the inner wall top end and the bottom end of the valve seat is equipped with sealing shaft seat, the center of the sealing shaft seat is equipped with transmission rod cover, the both sides lateral wall of the transmission rod cover is fixedly connected with valve plate, the transmission rod cover penetrates and is rotatably in the center of secondary sealing base in the bottom of valve seat, the bottom end of the secondary sealing base is rotatably connected with plug valve connecting piece, and the bottom end of the transmission rod cover is fixedly connected with the top end of plug valve connecting piece.

[0007] Through adopting the technical scheme, firstly, the mounting plug at the top end of the top sealing seat is inserted into the inner wall of the locking module, then the top rotating clamping piece rotating in the locking module is inserted into the clamping groove of the rotating connecting piece to complete the connection, so that the locking module is connected with the valve seat, the valve connecting piece extended from the bottom end of the secondary sealing base is connected with the valve and fixed, so that the overall connection and fixation of the valve seat are completed, then the valve is rotated to drive the transmission rod sleeve to rotate through the valve connecting piece, so that the valve plate is driven to rotate in the valve seat to adjust the on-off state in the valve seat, the pipeline blockage of the valve seat is completed through the coincidence and abutment of the rubber ring on the outer periphery of the valve plate and the sealing rubber ring on the inner wall of the valve seat, and the locking adjusting knob is abutted against the outer periphery of the top rotating clamping piece by rotating the locking adjusting knob, so that the static friction is applied to realize the friction locking of the top rotating clamping piece, and then the rotation state of the clamping groove of the rotating connecting piece and the transmission rod sleeve clamped at the bottom end of the top rotating clamping piece is locked, so that the fixed rotation state of the transmission rod sleeve is controlled, the secondary locking is realized, and the injection of lubricating oil through the opening of the oil injection port can avoid the internal structure to be rough and difficult to control.

[0008] Specifically, the inner wall of the valve seat is fixed with a circle of the sealing rubber ring at the center, and the outer periphery of the valve plate is fixed with a sealing ring made of the same material as the sealing rubber ring.

[0009] Through the above technical scheme, the on-off state of the pipeline inside is blocked through the sealing of the sealing rubber ring and the inner wall of the valve seat.

[0010] Specifically, the top end of the locking module is rotationally connected with the top rotating clamping piece, and the bottom end of the top rotating clamping piece is connected with the clamping groove of the rotating connecting piece through the elastic clamping structure.

[0011] Through the above technical scheme, the on-off state of the valve seat is controlled through the top rotating clamping piece and the structures of the transmission rod sleeve, so that the locking state is completed through the cooperation of the structures.

[0012] Specifically, the rotation state of the top rotating clamping piece is locked by rotating the locking adjusting knob on the side wall of the locking module.

[0013] Through the above technical scheme, after the pipeline on-off state in the locking module is changed, the rotation state of the locking adjusting knob is locked by rotating the locking adjusting knob.

[0014] Specifically, the bottom end of the secondary sealing base is connected with the valve through the valve connecting piece.

[0015] Through the above technical scheme, the secondary sealing base is connected and fixed with the valve through the valve connecting piece at the bottom end.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The technical scheme of the present application is characterized in that the valve seat, the rotating connecting piece clamping groove, the locking module, the locking adjusting knob, the transmission rod sleeve, the valve plate, the sealing shaft seat, the plug valve connecting piece, the matching sealing rubber ring and the top rotating clamping piece are designed, the mounting plug at the top end of the top sealing seat is first inserted into the inner wall of the locking module, then the top rotating clamping piece rotating in the locking module is inserted into the rotating connecting piece clamping groove to complete the connection, so that the locking module is connected with the valve seat, the plug valve connecting piece extended at the bottom end of the secondary sealing base is connected with the plug valve and fixed, so that the overall connection and fixation of the valve seat are completed, then the plug valve is rotated to drive the transmission rod sleeve to rotate, so as to drive the valve plate to rotate in the valve seat to adjust the on-off state in the valve seat, the pipeline blockage of the valve seat is completed through the coincidence and abutment of the rubber ring on the outer periphery of the valve plate and the matching sealing rubber ring on the inner wall of the valve seat, and at the same time, the locking adjusting knob is rotated to make the locking adjusting knob abut against the outer periphery of the top rotating clamping piece, so that the static friction force is applied to realize the friction locking of the top rotating clamping piece, and then the rotation state of the rotating connecting piece clamping groove and the transmission rod sleeve clamped by the bottom end of the top rotating clamping piece is locked, so that the fixed rotation state of the transmission rod sleeve is controlled, and the secondary locking is realized. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be further described below in combination with the drawings and embodiments.

[0019] Fig. 1 It is a perspective view of the present application;

[0020] Fig. 2 It is a structure split schematic view of the valve seat and the locking module of the present application;

[0021] Fig. 3 It is a structure schematic view of the internal structure of the valve seat in the open state of the present application;

[0022] In the drawings: 1, valve seat; 2, top sealing seat; 3, mounting plug; 4, rotating connecting piece clamping groove; 5, locking module; 6, locking adjusting knob; 7, oil inlet; 8, transmission rod sleeve; 9, valve plate; 10, sealing shaft seat; 11, secondary sealing base; 12, plug valve connecting piece; 13, matching sealing rubber ring; 14, top rotating clamping piece. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, purposes and effects realized by the present application easy to understand, the present application will be further described below in combination with specific embodiments.

[0024] Please refer to Figs. 1-3The utility model discloses an embodiment provides a technical scheme: a kind of EP valve seat with double sealing effect, including valve seat 1, the top end of the valve seat 1 is fixedly connected with top sealing seat 2, the top end of the top sealing seat 2 is centrally through and fixedly connected with installation plug-in 3, the central place of installation plug-in 3 is rotatably connected with rotating connecting piece clamping groove 4, the top end of rotating connecting piece clamping groove 4 is connected with the bottom end of locking module 5 by screwing, the lateral wall of locking module 5 is rotatably connected with locking adjusting knob 6, locking adjusting knob 6 passes through locking module 5 one end and is rotatably connected in the inside of oil injection port 7;

[0025] The central place of the inner wall top end and the bottom end of the valve seat 1 is equipped with sealing shaft seat 10, the center of the sealing shaft seat 10 is equipped with transmission rod cover 8, the two sides of the transmission rod cover 8 are fixedly connected with valve plate 9, the transmission rod cover 8 is rotatably connected in the center of secondary sealing base 11 through the bottom end of valve seat 1, the bottom end of secondary sealing base 11 is rotatably connected with plug valve connecting piece, and the bottom end of transmission rod cover 8 is fixedly connected with the top end of plug valve connecting piece.

[0026] In use, first, installation plug-in 3 of top sealing seat 2 top end is inserted into the inner wall of locking module 5, then, top rotating clamp 14 in locking module 5 is inserted into rotating connecting piece clamping groove 4 to complete connection by rotating, so that locking module 5 is connected with valve seat 1, plug valve connecting piece 12 extended from the bottom end of secondary sealing base 11 is connected with plug valve and is fixed, so that the overall connection and fixation of valve seat 1 are completed, then, plug valve is rotated, transmission rod cover 8 is driven to rotate through plug valve connecting piece 12, so that valve plate 9 is driven to rotate in valve seat 1, the on-off state in valve seat 1 is adjusted, the pipeline blockage of valve seat 1 is completed through the coincidence of rubber ring on the outer periphery of valve plate 9 and sealing rubber ring 13 on the inner wall of valve seat 1, and the outer periphery of locking adjusting knob 6 is abutted on top rotating clamp 14 by rotating locking adjusting knob 6, static friction is applied, so that the friction locking of top rotating clamp 14 is realized, the rotation state of rotating connecting piece clamping groove 4 and transmission rod cover 8 clamped by the bottom end of top rotating clamp 14 is locked, so that the fixed rotation state of transmission rod cover 8 is controlled, two-stage locking is realized, lubricating oil is injected by opening oil injection port 7, and internal structure is avoided to be rough and difficult to control.

[0027] As shown in the figure, a circle of sealing rubber ring 13 is fixed in the central place of the inner wall of valve seat 1, and the outer periphery of valve plate 9 is fixed with sealing ring of same material as sealing rubber ring 13.

[0028] In use, the on-off of pipeline inside is blocked through the sealing full abutment of sealing rubber ring and the inner wall of valve seat 1.

[0029] As shown in the figure, the top end of the locking module 5 is rotationally connected with a top rotating clamping piece, and the bottom end of the top rotating clamping piece 14 is connected with the rotating connecting piece clamping groove 4 through an elastic clamping structure.

[0030] In use, the on-off state in the valve seat 1 is controlled through the cooperation of the top rotating clamping piece with the structures of the transmission rod sleeve 8, so that the locking state is completed through the cooperation of the structures.

[0031] As shown in the figure, the rotation state of the top rotating clamping piece is locked through the rotation of the locking adjusting knob 6 on the side wall of the locking module 5.

[0032] In use, after the pipeline on-off state in the locking module 5 is changed, the rotation state of the clamping piece is locked by rotating the locking adjusting knob 6.

[0033] As shown in the figure, the bottom end of the secondary sealing base 11 is connected with the plug valve through the plug valve connecting piece 12.

[0034] In use, the bottom end of the secondary sealing base 11 is connected and fixed with the plug valve through the plug valve connecting piece 12.

[0035] The working principle and use process of the utility model are as follows: firstly, the mounting plug 3 at the top end of the top sealing seat 2 is inserted into the inner wall of the locking module 5, and then the top rotating clamping piece 14 rotating in the locking module 5 is inserted into the rotating connecting piece clamping groove 4 to complete the connection, so that the locking module 5 is connected with the valve seat 1, the plug valve connecting piece 12 extended from the bottom end of the secondary sealing base 11 is connected and fixed with the plug valve, so that the overall connection and fixation of the valve seat are completed, then the plug valve is rotated to drive the transmission rod sleeve 8 to rotate through the plug valve connecting piece 12, so as to drive the valve plate 9 to rotate in the valve seat 1 to adjust the on-off state in the valve seat 1, the pipeline blockage of the valve seat 1 is completed through the coincidence and abutment of the rubber ring on the outer periphery of the valve plate 9 and the sealing rubber ring 13 on the inner wall of the valve seat 1, and at the same time, the locking adjusting knob 6 is abutted against the outer periphery of the top rotating clamping piece 14 by rotating the locking adjusting knob 6, so as to realize the friction locking of the top rotating clamping piece 14 by applying the static friction force, and then the rotation state of the rotating connecting piece clamping groove 4 and the transmission rod sleeve 8 clamped at the bottom end of the top rotating clamping piece 14 is locked, so as to control the fixed rotation state of the transmission rod sleeve 8 and realize the secondary locking.

[0036] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and the description in the specification are only for illustrating the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An ethylene-propylene valve seat having a double sealing effect, characterized in that, The utility model relates to a valve seat (1), the top of valve seat (1) fixedly connected with top sealing seat (2), the top of top sealing seat (2) is through and fixedly connected with the installation plug -in part (3) in the middle, the middle of installation plug -in part (3) is rotatably connected with rotatable connecting piece clamping groove (4), the top of rotatable connecting piece clamping groove (4) is connected with the bottom of locking module (5) through screw connection, the lateral wall of locking module (5) is rotatably connected with locking adjusting knob (6), locking adjusting knob (6) is rotatably connected in the inside of oil filling port (7) through locking module (5) one end penetration, The middle of the inner wall top and bottom of valve seat (1) is equipped with sealing shaft seat (10), the center of sealing shaft seat (10) is equipped with transmission rod cover (8), both sides lateral wall of transmission rod cover (8) are fixedly connected with valve plate (9), transmission rod cover (8) is rotatable in the center of secondary sealing base (11) through the bottom penetration of valve seat (1), the bottom of secondary sealing base (11) is rotatably connected with plug valve connecting piece (12), and the bottom of transmission rod cover (8) is fixedly connected with the top of plug valve connecting piece (12).

2. The EPDM valve seat with double sealing effect according to claim 1, characterized in that, The middle of the inner wall of valve seat (1) is fixed with a set of sealing rubber ring (13), and the outer periphery of valve plate (9) is fixed with sealing ring of same material with sealing rubber ring (13).

3. The EPDM valve seat with double sealing effect according to claim 1, characterized in that, The top of locking module (5) is rotatably connected with top rotary clamping piece (14), and the bottom of top rotary clamping piece (14) is connected with rotatable connecting piece clamping groove (4) through the structure of elastic clamping.

4. The EPDM valve seat with double sealing effect according to claim 3, characterized in that, The lateral wall of locking module (5) locks the rotary state of top rotary clamping piece (14) through the rotation of locking adjusting knob (6).

5. The EPDM valve seat with double sealing effect according to claim 1, characterized in that, The bottom of secondary sealing base (11) is connected with plug valve through plug valve connecting piece (12).

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