CN208686987U - A kind of shield machine elastic packing knife gate valve - Google Patents
A kind of shield machine elastic packing knife gate valve Download PDFInfo
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- CN208686987U CN208686987U CN201821193968.0U CN201821193968U CN208686987U CN 208686987 U CN208686987 U CN 208686987U CN 201821193968 U CN201821193968 U CN 201821193968U CN 208686987 U CN208686987 U CN 208686987U
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Abstract
The utility model discloses the shield machine of gate valve technical field elastic packing knife gate valves, including gate valve casing, and gate valve casing is hollow structure, the intracavity bottom of the gate valve casing offers trapezoidal groove, the inner cavity of gate valve casing inner cavity trapezoidal groove is respectively arranged with elastic sealing element and sealing valve plate, and elastic sealing element is symmetrical set in the two sides of sealing valve plate, the bottom right side of the gate valve casing is connected with sealing side cover by dovetail groove, gate valve casing is run through on the top of the sealing valve plate, the top junction of the gate valve casing and sealing valve plate is provided with sealing packing chamber, filler chamber's gland is plugged at the top of the sealing packing chamber, the utility model is by screw rod in valve and valve plate design eccentric structure, realize that valve switch is the structure of interior elevating control, occupied space when effectively reducing valve because of switch, It is very suitable for mating constructing metro tunnel shield system to install and use.
Description
Technical field
The utility model relates to gate valve technical fields, specially shield machine elastic packing knife gate valve.
Background technique
Shield machine is a kind of rock tunnel(ling) machine using shield method.The construction method of shield is development machine structure while driving
(laying) tunnel its " shield " (referring to supportive section of jurisdiction) is built, it is different from open type construction method.In the world, broad sense shield machine can also be with
For lithostratigraphy, it is only different from the rock tunnel(ling) machine of open type (non-shield method), tunnel is carried out with the machinery of shield method and applies
Tool has high degree of automation, saves controllable ground when fast manpower, speed of application, a cavitation, weatherproof, excavation
Sedimentation, the features such as reducing influence to above ground structure and not influencing traffic above-ground when excavating under water, tunnel line it is longer,
In the biggish situation of buried depth, with shield machine construction more economical rationality.
Constructing tunnel generallys use shield machine and does industry, and the valve that mating shield machine is installed and used, due to the installation of permission
Space is narrower, it is desirable that valve must be small in size, light-weight, is easily installed, and good seal performance, and flexibly, behaviour makees valve to switch
It occupies little space when door, there are flow resistances for common gate valve, ball valve, shut-off valve etc. greatly, the difficulty that installation is heavy, occupied area is wide is asked
Topic.
Based on this, the utility model devises shield machine elastic packing knife gate valve, to solve the above problems.
Utility model content
The purpose of this utility model is to provide shield machine elastic packing knife gate valves, to solve in above-mentioned background technique
Common gate valve, ball valve, shut-off valve for iing is proposed etc. have that flow resistance is big, installation is heavy, occupied area is wide.
To achieve the above object, the utility model provides the following technical solutions: shield machine elastic packing knife gate valve, packet
Gate valve casing is included, and gate valve casing is hollow structure, the intracavity bottom of the gate valve casing offers trapezoidal groove, the gate valve
The inner cavity of housing cavity trapezoidal groove is respectively arranged with elastic sealing element and sealing valve plate, and elastic sealing element is symmetrical set
In the two sides of sealing valve plate, the bottom right side of the gate valve casing is connected with sealing side cover, the sealing valve plate by dovetail groove
Top run through gate valve casing, the top junction of the gate valve casing and sealing valve plate is provided with sealing packing chamber, described close
It is plugged with filler chamber's gland at the top of envelope filler chamber, positioning thread insert, the gate valve casing are installed at the top of the sealing valve plate
Top connecting bracket is installed, adjusting handle is installed, the bottom installation of the adjusting handle at the top of the connecting bracket
There is a positioning screw, and the bottom of positioning screw is by being threadably mounted at the inner cavity of positioning thread insert.
Preferably, the bottom of the sealing valve plate forms sealing knot in the inner cavity lower part of gate valve casing by elastic sealing element
Structure.
Preferably, the top of the sealing valve plate is by the airtight and watertight padding of sealing packing chamber inner cavity in the inner cavity of gate valve casing
Sealing structure is formed at top.
Preferably, it cooperates between filler chamber's gland and sealing packing chamber, and filler chamber's gland and airtight and watertight padding
It is interference fit between room.
Preferably, the junction of the connecting bracket and adjusting handle is provided with anti-friction bearing.
Compared with prior art, the utility model has the beneficial effects that
1, the utility model designs trapezoidal insert seal structure, and trapezoidal insert seal structure is firm in conjunction with shell
Gu valve, during opening and closing, elasticity, sealing performance greatly improve elaxtic seal tool well, and valve makes
It is long with the service life, really realize zero leakage；
2, screw rod in valve and valve plate design eccentric structure are realized that valve switch is interior elevating control by the utility model
Structure, occupied space when effectively reducing valve because of switch are very suitable for mating constructing metro tunnel shield system installation
It uses.Certainly, any product for implementing the utility model does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment
Attached drawing, which is done, simply to be introduced, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the portion the utility model I enlarged drawing；
Fig. 3 is the portion the utility model II enlarged drawing figure.
In attached drawing, parts list represented by the reference numerals are as follows:
1- gate valve casing, 2- elastic sealing element, 3- seal side cover, 4- sealing valve plate, 5- sealing packing chamber, 6- filler chamber
Gland, 7- positioning thread insert, 8- positioning screw, 9- connecting bracket, 10- adjusting handle.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
All other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: shield machine elastic packing knife gate valve, including
Gate valve casing 1, and gate valve casing 1 is hollow structure, the intracavity bottom of gate valve casing 1 offers trapezoidal groove, in gate valve casing 1
The inner cavity of chamber trapezoidal groove is respectively arranged with elastic sealing element 2 and sealing valve plate 4, and elastic sealing element 2 is symmetrical set
The bottom right side of the two sides of sealing valve plate 4, gate valve casing 1 is connected with sealing side cover 3, the top of sealing valve plate 4 by dovetail groove
Through gate valve casing 1, the top junction of gate valve casing 1 and sealing valve plate 4 is provided with sealing packing chamber 5, sealing packing chamber 5
Top is plugged with filler chamber's gland 6, and the top of sealing valve plate 4 is equipped with positioning thread insert 7, and the top of gate valve casing 1 is equipped with company
Bracket 9 is connect, the top of connecting bracket 9 is equipped with adjusting handle 10, and the bottom of adjusting handle 10 is equipped with positioning screw 8, and fixed
The bottom of position screw rod 8 is by being threadably mounted at the inner cavity of positioning thread insert 7.
Wherein, the bottom of sealing valve plate 4 forms sealing structure in the inner cavity lower part of gate valve casing 1 by elastic sealing element 2,
Guarantee the leakproofness of sealing valve plate 4 and 1 bottom of gate valve casing, the top of sealing valve plate 4 passes through the sealing of 5 inner cavity of sealing packing chamber
Filler forms sealing structure on the inner cavity top of gate valve casing 1, guarantees the leakproofness at 1 top of sealing valve plate 4 and gate valve casing, fills out
It cooperates between material chamber pressure lid 6 and sealing packing chamber 5, and is interference fit between filler chamber's gland 6 and sealing packing chamber 5,
Filler chamber's gland 6 is facilitated to be sealed sealing packing chamber 5, the junction of connecting bracket 9 and adjusting handle 10 is provided with resistance to
Bearing is ground, the abrasion between adjusting handle 10 and connecting bracket 9 is reduced.
One concrete application of the present embodiment are as follows: the utility model is designed using eccentric structure, is set in 4 upper end of sealing valve plate
Set 7 structure of positioning thread insert, positioning screw 8 screws in positioning thread insert 7, and 8 upper end of positioning screw is provided with adjusting handle 10, and with
Adjusting handle 10 is connected by firm welding, constitutes overall structure by connecting bracket 9 and gate valve casing 1, positioning thread insert 7 with
Sealing valve plate 4 is using eccentric secured connection structure, and when through rotation adjusting handle 10, adjusting handle 10 drives positioning screw
8 make rotating motion, and do not do axially extended movement, and positioning screw 8, which is rotated under the using of threading force, promotes positioning thread insert 7 to do
It moves up and down, so that sealing valve plate 4 be driven to move up and down, realizes the switch of sealing valve plate 4, the structure size of valve entirety is not
It can change, be interior elevating control, occupied space, is very suitable for mating subway tunnel and applies when effectively reducing valve because of switch
The installation of work shield system, the flowing for control piper medium
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model
In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples
In can be combined in any suitable manner.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory
The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably
The principles of the present invention and practical application are explained, so that skilled artisan be enable to better understand and utilize this
Utility model.The utility model is limited only by the claims and their full scope and equivalents.
Claims (5)
1. shield machine elastic packing knife gate valve, including gate valve casing (1), and gate valve casing (1) is hollow structure, the lock
The intracavity bottom of valve chest (1) offers trapezoidal groove, it is characterised in that: gate valve casing (1) inner cavity trapezoidal groove it is interior
Chamber is respectively arranged with elastic sealing element (2) and sealing valve plate (4), and elastic sealing element (2) is symmetrical set in sealing valve plate
(4) bottom right side of two sides, the gate valve casing (1) is connected with sealing side cover (3), the sealing valve plate by dovetail groove
(4) gate valve casing (1) is run through on top, and the top junction of the gate valve casing (1) and sealing valve plate (4) is provided with sealing and fills out
Expect room (5), is plugged with filler chamber's gland (6) at the top of the sealing packing chamber (5), the top installation of the sealing valve plate (4)
Have positioning thread insert (7), is equipped with connecting bracket (9) at the top of the gate valve casing (1), the top peace of the connecting bracket (9)
Equipped with adjusting handle (10), the bottom of the adjusting handle (10) is equipped with positioning screw (8), and the bottom of positioning screw (8)
By the inner cavity for being threadably mounted at positioning thread insert (7).
2. shield machine according to claim 1 elastic packing knife gate valve, it is characterised in that: the sealing valve plate (4)
Bottom by elastic sealing element (2) gate valve casing (1) inner cavity lower part formed sealing structure.
3. shield machine according to claim 1 elastic packing knife gate valve, it is characterised in that: the sealing valve plate (4)
Top sealing structure is formed on the inner cavity top of gate valve casing (1) by the airtight and watertight padding of sealing packing chamber (5) inner cavity.
4. shield machine according to claim 1 elastic packing knife gate valve, it is characterised in that: filler chamber's gland
(6) it cooperates between sealing packing chamber (5), and is interference fit between filler chamber's gland (6) and sealing packing chamber (5).
5. shield machine according to claim 1 elastic packing knife gate valve, it is characterised in that: the connecting bracket (9)
The junction of adjusting handle (10) is provided with anti-friction bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821193968.0U CN208686987U (en) | 2018-07-25 | 2018-07-25 | A kind of shield machine elastic packing knife gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821193968.0U CN208686987U (en) | 2018-07-25 | 2018-07-25 | A kind of shield machine elastic packing knife gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208686987U true CN208686987U (en) | 2019-04-02 |
Family
ID=65882407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821193968.0U Active CN208686987U (en) | 2018-07-25 | 2018-07-25 | A kind of shield machine elastic packing knife gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208686987U (en) |
-
2018
- 2018-07-25 CN CN201821193968.0U patent/CN208686987U/en active Active
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