CN217056691U

CN217056691U - Chemical valve with good sealing effect

Info

Publication number: CN217056691U
Application number: CN202123382139.1U
Authority: CN
Inventors: 苏智平
Original assignee: Shanghai General Valve Vacuum Equipment Co ltd
Current assignee: Shanghai NoFive Valve Factory Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-07-26
Anticipated expiration: 2031-12-30

Abstract

The utility model provides a chemical valve with good sealing effect, which belongs to the technical field of pipeline valves and mainly aims at the problem of poor sealing effect of the prior device, and provides the following technical scheme that the chemical valve with good sealing effect is provided with a fixed pipe on a valve body, a connecting pipe and a sealing component are respectively arranged in the fixed pipe in a penetrating way, the sealing component comprises a sealing sleeve, a sealing ring and a fixed sleeve, the sealing sleeve and the fixed sleeve are both arranged in the fixed pipe in a penetrating way, the sealing sleeve is sleeved outside the connecting pipe, the fixed sleeve is arranged in the connecting pipe in a penetrating way, two groups of clamping grooves are arranged on the connecting pipe, the sealing ring is clamped in the two groups of clamping grooves, and the sealing ring is contacted with the inner wall of the connecting pipe; through the sealing sleeve and the two layers of sealing rings, the device is sealed in multiple ways, the probability of sealing failure of the device is reduced, the sealing performance of the device is effectively improved, and the sealing effect of the device is better.

Description

Chemical valve with good sealing effect

Technical Field

The utility model relates to a pipeline valve technical field especially relates to sealed effectual valve for chemical industry.

Background

The valve is used for the switching pipeline, the control flow direction, adjust and control the pipeline annex of carrying the parameter of medium, the application range of valve is very wide, almost all equipment that contain the pipeline all can use the valve, different service environment also is different to the requirement of valve, in the chemical industry, because partial chemical products have certain harm, if reveal can harm staff's health of life or cause environmental pollution, consequently, it is high to the valve requirement, it has better sealed effect to need the valve, avoid the fluid to reveal, but present valve for the chemical industry carries out simple sealing mostly only through the sealed pad of one deck, lead to the leakproofness of valve not high.

As in application No.: CN202021444813.7 discloses a chemical management is with high temperature resistant valve that leaks outward, the device are provided with subassemblies such as box, supporting seat and apron, put into the supporting seat in the box with the valve body on, cover the apron, with the all-round parcel of valve body, avoid the valve to receive external factor influence and damage, also can collect the fluid of revealing simultaneously, but a chemical management is with high temperature resistant valve that leaks outward still has following not enough at present similar to the above-mentioned application: this valve can only protect the valve through the box, avoids the valve to reveal the back, and liquid flows out the box, and then leads to polluting, but the liquid is revealed to the unavoidable valve, does not improve the leakproofness of valve itself for the sealed effect of this valve is relatively poor, reveals liquid easily, can't satisfy present user demand.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a sealed effectual valve for chemical industry to solve the relatively poor problem of current device seal effect.

The utility model discloses sealed effectual purpose and the efficiency of valve for chemical industry is reached by following concrete technical means:

the chemical valve with good sealing effect is characterized in that a fixed pipe is arranged on the valve body, a connecting pipe and a sealing assembly are arranged in the fixed pipe in a penetrating mode respectively, the sealing assembly comprises a sealing sleeve, a sealing ring and a fixed sleeve, the sealing sleeve and the fixed sleeve are arranged in the fixed pipe in a penetrating mode, the sealing sleeve is arranged outside the connecting pipe in a penetrating mode, the connecting pipe is provided with two groups of clamping grooves, the clamping grooves are arranged in the two groups of clamping grooves in a clamping mode, and the sealing ring is in contact with the inner wall of the connecting pipe.

The above technical solution further comprises: the fixed sleeve is provided with a positioning block, the positioning block is clamped in the positioning groove, and the positioning groove is formed in the fixed pipe.

The above technical solution further comprises: the end of the fixing pipe is provided with a locking assembly, the locking assembly comprises a locking ring and a plurality of groups of locking sheets, the locking ring is sleeved outside the locking sheets, two groups of fixing blocks are arranged at the opening of the locking ring, fixing bolts penetrate through the fixing blocks, and nuts are sleeved on the fixing blocks after the fixing bolts penetrate through the fixing blocks.

The above technical solution further comprises: and a gasket is arranged between the two groups of fixed blocks, and the gasket is sleeved on the fixed bolt.

The above technical solution further comprises: the locking piece is provided with a tensioning assembly, the tensioning assembly penetrates through the fixing assembly, and the fixing assembly is sleeved on the connecting pipe.

The above technical solution further comprises: the fixing assembly comprises a fixing ring and a locking bolt, the locking bolt is arranged in the fixing ring in a penetrating mode, the tail end of the locking bolt penetrates out of the fixing ring and the connecting pipe is in surface contact, the locking bolt is provided with a plurality of groups, and the locking bolt is evenly distributed on the periphery of the fixing ring.

The above technical solution further comprises: the tensioning assembly comprises an elastic rod, the elastic rod is arranged in the connecting cylinder in a penetrating mode, the connecting cylinder is arranged on the fixing ring, a compression spring is sleeved on the elastic rod, and the compression spring is in end face contact with the connecting cylinder.

Compared with the prior art, the utility model discloses following beneficial effect has:

the connecting pipe is inserted into the fixed pipe, the connecting pipe is located between the sealing sleeve and the fixed sleeve, two groups of sealing rings in the clamping groove are in close contact with the inner wall of the connecting pipe, when the first layer of sealing ring fails, the second layer of sealing ring can block liquid, liquid leakage is avoided, when the two layers of sealing rings fail, the sealing sleeve can block the liquid, further leakage of the liquid is avoided, the sealing assembly is arranged, multiple sealing is carried out on the device, the probability of sealing failure of the device is reduced, the sealing performance of the device is effectively improved, and the sealing effect of the device is better.

Drawings

Fig. 1 is the whole diagram of the chemical valve with good sealing effect.

Fig. 2 is an explosion diagram of the chemical valve with good sealing effect.

Fig. 3 is an enlarged schematic view of the area a in fig. 2.

Fig. 4 is the utility model discloses sealed effectual valve body's in valve for chemical industry schematic diagram.

Fig. 5 is the utility model discloses sealed effectual seal assembly's among the valve for chemical industry cross-sectional view.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a valve body; 2. a fixed tube; 3. a fixing ring; 4. a compression spring; 5. locking the bolt; 6. an elastic rod; 7. a locking sheet; 8. a gasket; 9. a nut; 10. fixing the bolt; 11. locking a ring; 12. sealing sleeves; 13. a connecting pipe; 14. a seal ring; 15. a card slot; 16. positioning a block; 17. fixing a sleeve; 18. positioning a groove; 19. a fixed block; 20. a connecting cylinder.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the drawings and examples. The following examples are provided to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

The embodiment is as follows:

as shown in figures 1 to 5:

the utility model provides a valve for chemical industry with good sealing effect, a fixed pipe 2 is arranged on a valve body 1, a connecting pipe 13 and a sealing component are arranged in the fixed pipe 2 in a penetrating way, the sealing component comprises a sealing sleeve 12, a sealing ring 14 and a fixing sleeve 17, the sealing sleeve 12 is sleeved outside the connecting pipe 13, the fixing sleeve 17 is arranged in the connecting pipe 13 in a penetrating way, a clamping groove 15 is arranged on the connecting pipe 13, the sealing ring 14 in the clamping groove 15 is contacted with the inner wall of the connecting pipe 13, the connecting pipe 13 is inserted into the fixed pipe 2, the connecting pipe 13 is positioned between the sealing sleeve 12 and the fixing sleeve 17, the connecting pipe 13 is sealed with the gap between the fixed pipe 2 through the sealing sleeve 12, two groups of sealing rings 14 in the clamping groove 15 are tightly contacted with the inner wall of the connecting pipe 13, the gap between the connecting pipe 13 and the fixing sleeve 17 is sealed, liquid enters the valve body 1 through the fixing sleeve 17, when the first layer of the sealing ring 14 fails, second layer sealing washer 14 can block liquid, avoids liquid to leak, and when two-layer sealing washer 14 was all become invalid, seal cover 12 can block liquid, avoids liquid further to reveal outside the valve, through multiple sealed, replaces traditional individual layer sealing mode, avoids the sealed back liquid leakage that becomes invalid of individual layer, the effectual leakproofness that improves the device, makes the sealed effect of device better.

Referring to fig. 3 and 4, a positioning block 16 is arranged on a fixing sleeve 17, the positioning block 16 is clamped in a positioning groove 18, the positioning groove 18 is formed in the fixing tube 2, the fixing sleeve 17 is positioned through the positioning block 16 and the positioning groove 18 and fixed in the fixing tube 2, and an integrated arrangement is replaced, so that the fixing sleeve 17 can be removed and replaced, and the maintenance by workers is facilitated.

Referring to fig. 2, the locking assembly disposed at the end of the fixing tube 2 includes a locking ring 11 and a plurality of sets of locking strips 7, the locking strip 7 is sleeved with the locking ring 11, two sets of fixing blocks 19 are disposed at an opening of the locking ring 11, a fixing bolt 10 penetrates through one set of fixing blocks 19, the end of the fixing bolt 10 penetrates through the other set of fixing blocks 19 and is sleeved with a nut 9, the locking ring 11 is sleeved outside the locking strip 7, the connecting tube 13 is inserted into the fixing tube 2, and then the fixing block 19 is pressed by the fixing bolt 10 and the nut 9, so that the locking ring 11 extrudes the locking strips 7, the locking strips 7 are tightly attached to the connecting tube 13, and the connecting tube 13 is fixed in the fixing tube 2, which makes the connection of the device more reliable and the operation more convenient.

Referring to fig. 2, a gasket 8 is disposed between two sets of fixing blocks 19, the gasket 8 is sleeved on the fixing bolt 10, when the fixing bolt 10 and the nut 9 are tightened, the two sets of fixing blocks 19 extrude the gasket 8 to deform the gasket 8, and the reaction force provided by the deformation of the gasket 8 enables the fixing blocks 19 to abut against the nut 9 and the fixing bolt 10, so that the locking failure of the nut 9 and the fixing bolt 10 can be avoided, and the device is more reliable.

Referring to fig. 2, the locking sheet 7 is provided with a tensioning assembly, the tensioning assembly is arranged in the fixing assembly in a penetrating manner, the fixing assembly is sleeved on the connecting pipe 13, the fixing assembly is fixed on the connecting pipe 13, and the fixing assembly is tensioned through the tensioning assembly, so that the connecting pipe 13 is tensioned towards the inside of the fixing pipe 2, the connection is prevented from being loosened, and liquid leakage is caused.

Referring to fig. 2, the fixing assembly includes a fixing ring 3 and a locking bolt 5, the locking bolt 5 is inserted into the fixing ring 3, the end of the locking bolt 5 penetrates out of the fixing ring 3 to contact with the surface of the connecting pipe 13, the fixing ring 3 is sleeved on the connecting pipe 13, and then the locking bolt 5 is screwed down to abut against the connecting pipe 13, so that the fixing ring 3 is fixed on the connecting pipe 13, the device can adapt to various types of connecting pipes 13, and the adaptability of the device is improved.

Referring to as in fig. 2, the tensioning assembly includes elastic rod 6, elastic rod 6 wears to establish in connecting cylinder 20, connecting cylinder 20 sets up on solid fixed ring 3, the cover is equipped with compression spring 4 on elastic rod 6, compression spring 4 and the 20 end face contact of connecting cylinder, compression spring 4 extrusion connecting cylinder 20 makes connecting cylinder 20 drive solid fixed ring 3 and removes to fixed pipe 2 direction to draw connecting pipe 13 to fixed pipe 2, avoid the pipe connection not hard up, lead to liquid to reveal.

The specific use mode and function of the embodiment are as follows: the locking ring 11 is sleeved outside the locking sheet 7, after the connecting pipe 13 is connected into the fixed pipe 2, the fixing bolt 10 and the nut 9 are screwed down, the locking ring 11 extrudes the locking sheet 7, the locking sheet 7 is attached to the connecting pipe 13, the connecting pipe 13 is fixed in the fixed pipe 2, the connecting pipe 13 is located between the sealing sleeve 12 and the fixing sleeve 17, two groups of sealing rings 14 in the clamping groove 15 are in close contact with the inner wall of the connecting pipe 13, liquid enters the valve body 1 through the fixing sleeve 17, when the first layer of sealing ring 14 fails, the second layer of sealing ring 14 can block the liquid, liquid leakage is avoided, when the two layers of sealing rings 14 fail, the sealing sleeve 12 can block the liquid, the liquid is prevented from further leaking out of the valve, and through multiple sealing, the sealing effect is better. After the fixing ring 3 is sleeved on the connecting pipe 13, the locking bolt 5 is screwed down to be abutted against the connecting pipe 13, so that the fixing ring 3 is fixed on the connecting pipe 13, the compression spring 4 extrudes the connecting cylinder 20, the connecting cylinder 20 drives the fixing ring 3 to move towards the fixing pipe 2, the connecting pipe 13 is pulled towards the fixing pipe 2, and the device is more firmly connected.

Claims

1. The utility model provides a sealed effectual valve for chemical industry, includes valve body (1), its characterized in that: be provided with fixed pipe (2) on valve body (1), wear to be equipped with connecting pipe (13) and seal assembly in fixed pipe (2) respectively, seal assembly includes seal cover (12), sealing washer (14) and fixed cover (17), seal cover (12) with fixed cover (17) is all worn to establish in fixed pipe (2), seal cover (12) cover is established outside connecting pipe (13), fixed cover (17) is worn to establish in connecting pipe (13), seted up two sets of draw-in grooves (15) on connecting pipe (13), it is two sets of all block in draw-in groove (15) and be equipped with sealing washer (14), sealing washer (14) with connecting pipe (13) inner wall contact.

2. The chemical valve with good sealing effect as claimed in claim 1, wherein: the fixed sleeve (17) is provided with a positioning block (16), the positioning block (16) is clamped in a positioning groove (18), and the positioning groove (18) is formed in the fixed pipe (2).

3. The chemical valve with good sealing effect as claimed in claim 1, wherein: the locking device is characterized in that a locking assembly is arranged at the tail end of the fixing pipe (2), the locking assembly comprises a locking ring (11) and a plurality of groups of locking sheets (7), the locking ring (11) is sleeved outside the locking sheets (7), two groups of fixing blocks (19) are arranged at an opening of the locking ring (11), a fixing bolt (10) penetrates through one group of the fixing blocks (19), and a nut (9) is sleeved at the tail end of the fixing bolt (10) through the other group of the fixing blocks (19).

4. A chemical valve with good sealing effect as claimed in claim 3, wherein: and a gasket (8) is arranged between the two groups of fixed blocks (19), and the gasket (8) is sleeved on the fixed bolt (10).

5. A chemical valve with good sealing effect as claimed in claim 3, wherein: the locking piece (7) is provided with a tensioning assembly, the tensioning assembly penetrates through the fixing assembly, and the fixing assembly is sleeved on the connecting pipe (13).

6. The chemical valve with good sealing effect as claimed in claim 5, wherein: fixed subassembly is including solid fixed ring (3) and locking bolt (5), wearing to establish in locking bolt (5) gu fixed ring (3), locking bolt (5) end is worn out gu fixed ring (3) with connecting pipe (13) surface contact, locking bolt (5) are provided with the multiunit, and evenly distributed is in gu fixed ring (3) week side.

7. The chemical valve with good sealing effect as claimed in claim 6, wherein: taut subassembly includes elastic rod (6), elastic rod (6) are worn to establish in connecting cylinder (20), connecting cylinder (20) set up on solid fixed ring (3), the cover is equipped with compression spring (4) on elastic rod (6), compression spring (4) with connecting cylinder (20) end face contaction.