CN106939937A - A kind of Anti-theft ball valve - Google Patents
A kind of Anti-theft ball valve Download PDFInfo
- Publication number
- CN106939937A CN106939937A CN201710314079.9A CN201710314079A CN106939937A CN 106939937 A CN106939937 A CN 106939937A CN 201710314079 A CN201710314079 A CN 201710314079A CN 106939937 A CN106939937 A CN 106939937A
- Authority
- CN
- China
- Prior art keywords
- spring
- key bar
- keyhole
- valve
- spring groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 210000004907 gland Anatomy 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000000567 combustion gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/12—Covers for housings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K35/00—Means to prevent accidental or unauthorised actuation
- F16K35/02—Means to prevent accidental or unauthorised actuation to be locked or disconnected by means of a pushing or pulling action
- F16K35/022—Means to prevent accidental or unauthorised actuation to be locked or disconnected by means of a pushing or pulling action the locking mechanism being actuated by a separate actuating element
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
Abstract
The present invention relates to a kind of valve, particularly a kind of Anti-theft ball valve of gas meter, flow meter tamper-proof, including valve body, valve element, valve rod, bonnet and key assembly, valve body is provided with and is placed in the monosymmetric left limit post of valve rod and right limit post, the height of left limit post is unequal, inside is placed with spring, the fixed latch in upper end of spring, bonnet is provided with the left keyhole coaxial with left limit post, the also right keyhole coaxial with right limit post, spring latch part when not producing deformation is in spring groove at another part in keyhole, key bar includes left key bar and right key bar, the left key bar has difference in height with right key bar, pass through a left side, the length of right key bar matches the deformation quantity of spring-compressed, so as to by latch to spring groove internal pressure, so that valve element is opened in bonnet twisting, this technology improves the accuracy of valve body and key, the accurate length of key bar is needed to open valve element to coordinate spring deformation, improve the theftproof performance of ball valve.
Description
Technical field
The present invention relates to a kind of valve, particularly a kind of Anti-theft ball valve of gas meter, flow meter tamper-proof.
Background technology
Ball valve is widely used in domestic life, supplies water, heats as house, control unit main in the system of supply official road
Part, in order to prevent from certain user's malicious owing fee or close after air valve to steal natural gas and change its working method to escape combustion
Gas payment of fees, run into such case be user can voluntarily close valve stop supply, but be unable to opens voluntarily, it is necessary to
Special adapted key；A kind of Anti-theft magnetic locking-type valve of such as Patent No. 200920195982.9（Notification number
CN201475388U, day for announcing 2010.05.19）, include valve body, valve element, valve rod, bonnet, the valve master constituted based on gland
Body, and control valve magnetic control mechanism, magnetic control mechanism be for：
Bonnet, is connected on valve body, and upper surface, which has, is sequentially placed with shear pin and spring in a pin-and-hole, pin-and-hole, spring makes to cut
Cut pin and remain out ejection trend；
Gland, is enclosed within bonnet, and is connected with valve rod, the corresponding spacing hole being provided with shear pin cooperation in lower surface, spacing
Magnetic element is placed with hole；
Also key assembly, is enclosed within gland the operating portion for presenting and being disposed with and being operated for people on removable lining connection, key assembly,
Also, magnetic element is placed with key assembly, it is corresponding with the magnetic element position in gland；Gland is enclosed within key assembly
In the state of, the magnetic element on gland is repelled by the magnetic element on key assembly, forces shear pin to deviate from spacing hole.
Although the Anti-theft magnetic locking-type valve of above-mentioned patent could be opened using special key assembly, as long as make
It can just be opened with the magnetic element of the same sex, it is not necessary to which the people of gas company opens, and magnetic element is all relatively common, easily
Look for, find the magnetic element matched, so result in the theftproof performance reduction of ball valve.
The content of the invention
In view of technical problem present in prior art, the present invention provides a kind of more preferable Anti-theft ball valve of anti-theft capability, this
Technology improves the accuracy of valve body and key, it is necessary to the accurate length of key bar opens valve element to coordinate spring deformation, improves
The theftproof performance of ball valve.
To realize above-mentioned technical purpose, the technical solution adopted by the present invention is as follows：
A kind of Anti-theft ball valve, including valve body, valve element, valve rod, bonnet and key assembly, the bonnet are connected on valve body, valve element
Valve inner is arranged on, the valve rod upper end is connected on bonnet, and valve rod lower end is connected with valve element, and the key assembly is enclosed within valve
The removable lining connection of presentation is covered, the key assembly includes holding rod and stretches into the key bar of unlatching valve element inside bonnet, institute
Valve body is stated provided with limited post, the rotation that bonnet is enclosed within the outside control valve element of limited post is opening/closing, is provided with bullet in limited post vertically
Spring, the fixed latch slided in spring groove in the upper end of spring are placed with spring groove, spring groove；The bonnet is provided with
The equal diameters of the coaxial keyhole with limited post, keyhole and spring groove；Spring is not when producing deformation, at latch part
In spring groove, it is partially located in keyhole；The effective length of the key bar is equal to the depth of mutual corresponding keyhole.
Using the Anti-theft ball valve of above-mentioned technical proposal, due to using setting spring groove in limited post, be placed with spring groove
Spring, the structure of the fixed latch slided in spring groove in the upper end of spring, in use, directly being adopted in compared with the prior art
For the valve being opened and closed with rotatable handle, the function of self-locking can be reached, prevents to avoid usurping coal gas or arbitrarily change equipment is escaped
Keep away payment；The magnetic anti-theft ball valve of opposite band self-locking（Valve element is opened using the principle that identical charges repel each other）For, the magnetic with self-locking
Property Anti-theft ball valve is only needed to just open ball valve easily with same sex magnet, and valve body and key are improved using the technical program
Accuracy, so as to improve theftproof performance.Using the Anti-theft ball valve of the technical program, normally using（Valve element opening
When）, can guarantee that combustion gas or water, liquid are passed through, now, latch can not be coaxial with keyhole, can not stretch into key
In hole, spring is in pre-pressing state；When run into need close valve when, it is only necessary to rotary valve cover is driven into Spool rotating, but
Once rotate to valve element it is in the closed position when, latch is coaxial with keyhole, so that under the action of the spring, latch is upward
Extend into keyhole, so that the relative position of bonnet and valve body is locked, bonnet can not rotate, thus also ensure that valve element without
Method rotates, and wants rotary spool again, can only could be opened using the key assembly matched, ensure that antitheft property
Energy.Using the valve of this structure, valve element is closed as common valve, but opening then needs special key, makes bullet
Spring, which produces correct deformation quantity, could open ball valve.Signified key bar effective length refers to all insert key in this specification
The physical length in hole.
Further, limit the valve body and be provided with the left limit post and right limit post for being placed in valve rod both sides, the left limit
Post has to be provided with left spring groove, right limit post vertically in difference in height, left limit post with right limit post is provided with right spring groove vertically,
It is placed with left spring and right spring in left spring groove and right spring groove respectively, the upper end of left spring and right spring is fixed on a left side
The latch slided in spring groove, right spring groove；The bonnet is provided with the left keyhole and right limit coaxial with left limit post
The coaxial right keyhole of post, left keyhole and the diameter of left spring groove, the equal diameters of right keyhole and right spring groove；Left spring
When not producing deformation, latch is partially located in left spring groove, is partially located in left keyhole；Right spring is not producing deformation
When, a latch part is in right spring groove, another part is in right keyhole；The key bar include left key bar and
Right key bar, the left key bar has difference in height with right key bar；The effective length of described left key bar is equal to left key
The depth in hole, the effective length of described right key bar is equal to the depth of right keyhole.
The Anti-theft ball valve of this design, the different one side of length of left and right key bar enhances theftproof performance, it is to avoid ball valve
Arbitrarily opened with other things, further, since the length of left and right keyhole is different, and then need two to be mutually matched
The latch on both sides is pressed downwardly onto appropriate position by the key bar of different length simultaneously（The upper plane of latch and keyhole
Upper plane is mutually flush）Could not hindered by bonnet and left and right spacing post separation, and then when rotation could rotation valve rod
Band movable valve plug opens ventilation, it is ensured that latch is in the presence of key bar, the upper plane of latch and the upper plane of keyhole
It is mutually flush, it is necessary to which the effective length for limiting left key bar is equal to the depth of left keyhole, effective length of right key bar etc.
Just it can guarantee that in the depth of right keyhole.This depth to keyhole, the effective length of the key bar of matching have strict chi
It is very little to require.Because the deformation quantity that two springs are produced is different, on the premise of the key assembly designed without genuine（Different shaped
Number and batch valve key assembly only have gas company special messenger keeping, it is not for sale）, in the case where closing valve state, need
When opening valve, user can not visually learn the length of key bar with the mode of the depth of keyhole measured directly
Degree, is less susceptible to while learning the length of two different key bars；When key bar in short-term, on latch part in keyhole,
Bonnet can not be rotated, also just can not rotary spool；When key bar is long, part is in spring groove under key bar, bonnet
It can not be rotated, also can not rotary spool；The key assembly that can only be designed by gas company using genuine can just make a lock
Stops is pressed downwardly onto appropriate position, so that rotary valve cover and valve element.
Further limit, the left limit post and right limit post are symmetrical arranged on valve body, make uniform force symmetrical.
Further limit, the height of the left limit post is less than the height of right limit post, both upper top surfaces are integrally formed
The low right high cascaded surface in one left side, ejects left keyhole, right key bar by latch in left key bar and latch is ejected into right key
During keyhole, bonnet can be rotated by 90 ° relative to the cascaded surface of left limit post and the formation of right limit post.
Further limit, the length of the left key bar is longer than the length of right key bar, because the height of left limit post is low
In the height of right limit post, be in order to key bar the upper plane of latch can be depressed into completely it is neat with the upper surface of spring groove
Flat, then bonnet will not be blocked when rotating.
Further limit, be additionally provided with spring stack in the left and right spring groove, left and right spring housing is on spring stack, the left side
The spring stack that spring stack in spring groove is highly equal in the height after left spring is compressed, the right spring groove is highly equal to the right side
Spring compressed after height, it is ensured that left and right spring keeps axiality when flexible up and down, prevents that left and right is crooked and causes excessive
Loss, is also unfavorable for latch and departs from left and right keyhole opening valve element.
Further limit, the left key bar and right key bar are screw rod, are threadedly coupled with holding rod, using screw thread
On the one hand connection is convenient for changing key bar or holding rod, on the other hand, the length of convenient appropriate micro regulation key bar, because
The deformation quantity and key bar and latch of spring can be over time accumulation and be changed, key bar and latch, spring
Cooperation need high fit, after the length change of key bar and latch, it is necessary to adjust left and right key bar to change length
It is short, valve element is opened to coordinate spring to twist bonnet, it is cost-effective.
Further limit, the bonnet is provided with two symmetrical handles, when valve element is opened in valve body, two handles
Same plane is in the horizontal median axis of valve body.Conventional sense bottom spool is to open to allow valve body to ventilate, under special state
Need to close, and the most of time that ball valve is used all is aeration status, so being at open shape when making offline
State, so in instant packed, the small volume of conplane design, is readily transported, and also reduce space body after installation
Product.
Further limit, the bottom surface left and right sides of the holding rod is provided with spacing hole, when left key bar inserts left key
Handle, which is inserted into spacing hole, when in hole, in the right keyhole of right key bar insertion is positioned, and the lower plane of holding rod is against valve
Left and right key bar is turned out when in the upper plane of lid and latch is ejected into keyhole, bonnet at this moment can be just rotated, turn round
Movable valve plug opens valve body.
Further limit, the equal rounding of the left key bar, right key bar, the seamed edge of left limit post and right limit post, because
To be that left and right key bar just hangs down latch spring-compressed goes down, latch is allowed to be in spring groove, at this time just can be with
Valve element is closed in twisting, blocks the left and right key bar after combustion gas colleague, chamfering, left and right limited post to cooperate frictional force to reduce, has
Beneficial to stirring for key assembly.
Brief description of the drawings
Fig. 1 is that a kind of Anti-theft ball valve is in state main view schematic cross-sectional view for the moment；
Fig. 2 is main view schematic cross-sectional view when a kind of Anti-theft ball valve is in state two；
Fig. 3 is a kind of schematic top plan view of Anti-theft ball valve；
Fig. 4 is the schematic top plan view of key assembly.
Embodiment
In order that those skilled in the art may be better understood, with reference to the accompanying drawings and examples to the technology of the present invention
Scheme is further illustrated.
A kind of Anti-theft ball valve as shown in Figure 1, Figure 2, Figure 3, Figure 4, including valve body 1, valve element 2, valve rod 3, bonnet 4 and key
Component 5, the bonnet 4 is connected on valve body 1, and valve element 2 is arranged on inside valve body 1, and the upper end of valve rod 3 is connected on bonnet 4,
The lower end of valve rod 3 is connected with valve element 2, and the key assembly 5, which is enclosed within bonnet 4, is presented removable lining connection, and the key assembly 5 is wrapped
Include holding rod 54 and stretch into the key bar that valve element 2 is opened in the inside of bonnet 4, the valve body 1 is provided with the left limit for being placed in the both sides of valve rod 3
Position post 11 and right limit post 12, the left limit post 11 have difference in height with right limit post 12, and bonnet 4 is enclosed within the He of left limit post 11
The rotation of the outside control valve element 2 of right limit post 12 is opening/closing, is provided with left spring groove 111, right limit post in left limit post 11 vertically
It is provided with vertically in right spring groove 121, left spring groove 111 and right spring groove 121 in 12 and is placed with left spring 112 and right spring respectively
122, the fixed latch slided in left spring groove 11, right spring groove 121 in the upper end of left spring 112 and right spring 122
13；The bonnet 4 is provided with the left keyhole 41 coaxial with left limit post 11, right keyhole also coaxial with right limit post 12
42, the equal diameters of left keyhole 41 and the diameter, right keyhole 42 and right spring groove 121 of left spring groove 111；Left spring 112
When not producing deformation, the part of latch 13 is in left spring groove 111, another part is in left keyhole 41；Right bullet
Spring 122 is not when producing deformation, and the part of latch 13 is in right spring groove 121, another part is in right keyhole 42；
The key bar includes left key bar 51 and right key bar 52, and the left key bar 51 has difference in height with right key bar 52；Institute
The effective length for the left key bar 51 stated is equal to the depth of left keyhole 41, and the effective length of described right key bar 52 is equal to the right side
The depth of keyhole 42.Signified key bar effective length refers to all insert the physical length of keyhole in this specification,
Positioned at the length of the lower plane bottom of holding rod 54 namely in accompanying drawing.When left key bar 51 is fully inserted into left keyhole 41
When, the upper plane of latch 13 is pressed down to concordant with the upper plane of left limit post 12, i.e., left spring 112 produces deformation and is pressed downward
The height of contracting is equal to downslide when plane is pressed to plane on left limit post 11 by left key bar 51 on latch 13 highly；Work as the right side
Key bar 52 stretches into right keyhole 42 and latch 13 is depressed into the upper plane of latch 13 and the upper plane of right limit post 12
When concordant, the height that the right generation of spring 121 deformation is compressed downwards is equal to plane on latch 13 and presses to the right side by right key bar 52
Downslide on limited post 12 during plane is highly.
The left limit post 11 and right limit post 12 are symmetrical arranged on valve body 1.
The height of the left limit post 11 as shown in Figure 4 is less than the height of right limit post 12, and both upper top surfaces are overall
The low right high cascaded surface in a left side is formed, similarly, the bottom surface formation one of bonnet 4 is engaged with left and right limited post cascaded surface
Right low left high cascaded surface.
The length of the left key bar 51 is longer than the length of right key bar 52, and left key bar and right key bar are arranged on hand-held
Bar on side, and position is mutually staggered（Such as Fig. 4）, it is left in order to coordinate left keyhole, right keyhole in valve covering position
Keyhole and right keyhole are at valve covering position with two handles on the side being staggered at an angle（Such as Fig. 3）.
Spring stack 14 is additionally provided with the left spring groove 111, right spring groove 121, left spring 112, right spring 122 are enclosed within bullet
On spring post 14, the height of spring stack 14 in the left spring groove 111 is equal to the height after left spring 112 is compressed, the right bullet
The height of spring stack 14 in spring groove 121 is equal to the height after right spring 122 is compressed.
The left key bar 51 and right key bar 52 are screw rod, are threadedly coupled with holding rod 54, left key bar 51, the right side
The common plane of key bar 52 is in a certain angle with the vertical horizontal frontal plane of key assembly 5.
The bonnet 4 is provided with two symmetrical handles 43, when valve element 2 is opened in valve body 1, two handles 43 and valve
The horizontal median axis of body 1 is in same plane.
The bottom surface left and right sides of the holding rod 54 is provided with spacing hole 53, when left key bar 51 inserts left keyhole 41
Handle 43 is inserted into spacing hole 53 and positioned when interior, right key bar 52 is inserted in right keyhole 42.
The equal rounding of the left key bar 51, right key bar 52, the seamed edge of left limit post 11 and right limit post 12, that is, contact
The round arris edge of mating surface.
The spacing hole 53 of key assembly 5 is alignd handle 43 when using, at the same left key bar 51 be directed at left keyhole 41, it is right
Key bar 52 is directed at right keyhole 42 and inserted, the plane when the bottom surface of key assembly 5 is steadily docked with the upper surface of bonnet 4
It is rotated by 90 °, valve element 2 below just ventilate under the drive of valve rod 3 by opening valve body 1, and concrete operations motion mode is：When left key
When bar 51 and right key bar 52 are pressed downward motion, latch 13 moves to left spring groove 111 out of bonnet 4 left keyhole 41
Interior, left spring 112 produces downward deformation quantity under the pressure of latch 13, equally, right keyhole of the latch 13 from bonnet 4
Moved in 42 in right spring groove 121, right spring 122 produces downward deformation quantity under the pressure of latch 13；With left key
The length difference of spoon bar 51, right key bar 52, the deformation quantity that left spring 112, right spring 122 are produced also can be different, such locking
Block 13 stretches into that left keyhole 41, the height in right keyhole 42 are also different, and the left length of key bar 51 is longer than right key bar 52
Degree will be grown, then 11 deformation quantity of left spring 112 is bigger than the shape side of right spring 122 amount in right limit post 12 in left limit post,
The height the being pressed downward also left and right keyhole ability highly higher, different in size than the deformation of right spring 122 in right limit post 12
The different latch 13 of compressed thickness is moved downward, so as to depart from left and right keyhole, bonnet 4 is twisted 90 °,
Valve element 2 is opened to ventilate.
A kind of Anti-theft ball valve that the present invention is provided is described in detail above, the explanation of specific embodiment is only intended to
Help understands the method for the present invention and its core concept.It should be pointed out that for those skilled in the art,
Without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention；These are improved and modification also falls
Enter in the protection domain of the claims in the present invention.
Claims (10)
1. a kind of Anti-theft ball valve, including valve body, valve element, valve rod, bonnet and key assembly, the bonnet are connected on valve body, valve
Core is arranged on valve inner, and the valve rod upper end is connected on bonnet, and valve rod lower end is connected with valve element, and the key assembly is enclosed within
Removable lining connection is presented on bonnet, the key assembly includes holding rod and stretches into the key bar of unlatching valve element inside bonnet,
It is characterized in that：The valve body is provided with limited post, and the rotation that bonnet is enclosed within the outside control valve element of limited post is opening/closing, spacing
It is provided with vertically in spring groove, spring groove in post and is placed with spring, the fixed latch slided in spring groove in the upper end of spring；
The bonnet is provided with the equal diameters of the keyhole coaxial with limited post, keyhole and spring groove；Spring is not producing deformation
When, latch is partially located in spring groove, is partially located in keyhole；The effective length of the key bar is equal to mutually corresponding
The depth of keyhole.
2. a kind of Anti-theft ball valve according to claim 1, it is characterised in that：The valve body is provided with and is placed in valve rod both sides
Left limit post and right limit post, the left limit post has with right limit post is provided with left spring vertically in difference in height, left limit post
It is provided with vertically in right spring groove, left spring groove and right spring groove in groove, right limit post and is placed with left spring and right spring respectively, it is left
The fixed latch slided in left spring groove, right spring groove in the upper end of spring and right spring；The bonnet be provided with
The diameter of the coaxial left keyhole of left limit post, right keyhole also coaxial with right limit post, left keyhole and left spring groove,
The equal diameters of right keyhole and right spring groove；Left spring is not when producing deformation, and latch is partially located in left spring groove, portion
Office is in left keyhole；Right spring is not when producing deformation, and a latch part is in right spring groove, another part is in
In right keyhole；The key bar includes left key bar and right key bar, and the left key bar has difference in height with right key bar；
The effective length of described left key bar is equal to the depth of left keyhole, and the effective length of described right key bar is equal to right key
The depth in hole.
3. a kind of Anti-theft ball valve according to claim 2, it is characterised in that：The left limit post and right limit post are in valve body
On be symmetrical arranged.
4. a kind of Anti-theft ball valve according to claim 3, it is characterised in that：The height of the left limit post is less than right limit
The low right high cascaded surface in a left side is integrally formed in the height of post, both upper top surfaces.
5. a kind of Anti-theft ball valve according to claim 4, it is characterised in that：The length of the left key bar is longer than right key
The length of bar.
6. a kind of Anti-theft ball valve according to claim 2, it is characterised in that：Spring is additionally provided with the left and right spring groove
Post, left and right spring housing is on spring stack, and the spring stack in the left spring groove is highly equal to the height after left spring is compressed,
Spring stack in the right spring groove is highly equal to the height after right spring is compressed.
7. a kind of Anti-theft ball valve according to claim 2, it is characterised in that：The left key bar and right key bar are screw rod, with
Holding rod is threadedly coupled.
8. a kind of Anti-theft ball valve according to claim 2, it is characterised in that：The bonnet is provided with two symmetrical hands
Handle, when valve element is opened in valve body, the horizontal median axis of two handles and valve body is in same plane.
9. a kind of Anti-theft ball valve according to claim 2, it is characterised in that：The left key bar, right key bar, left limit
The equal rounding of seamed edge of post and right limit post.
10. a kind of Anti-theft ball valve according to claim 8, it is characterised in that：The bottom surface left and right sides of the holding rod
Provided with spacing hole, when left key bar is inserted in left keyhole, right key bar is inserted in right keyhole, handle is inserted into spacing hole
It is interior to be positioned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710314079.9A CN106939937B (en) | 2017-05-05 | 2017-05-05 | Antitheft ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710314079.9A CN106939937B (en) | 2017-05-05 | 2017-05-05 | Antitheft ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106939937A true CN106939937A (en) | 2017-07-11 |
| CN106939937B CN106939937B (en) | 2023-05-16 |
Family
ID=59463368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710314079.9A Active CN106939937B (en) | 2017-05-05 | 2017-05-05 | Antitheft ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106939937B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006258A (en) * | 2017-12-27 | 2018-05-08 | 上海宝亚安全装备股份有限公司 | A kind of self-locking ball valve device |
| CN112576937A (en) * | 2020-12-02 | 2021-03-30 | 李思男 | Valve opening and closing mechanism for detecting air tightness of valve |
| CN113108114A (en) * | 2021-03-09 | 2021-07-13 | 陈东红 | Anti-theft and anti-misoperation manual valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20150376986A1 (en) * | 2014-06-25 | 2015-12-31 | Ge Oil & Gas Pressure Control Lp | Fusible, Resettable Lock Open Device |
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| CN203404479U (en) * | 2013-08-12 | 2014-01-22 | 中国石油大学(华东) | Anti-theft device of valve |
| US20150376986A1 (en) * | 2014-06-25 | 2015-12-31 | Ge Oil & Gas Pressure Control Lp | Fusible, Resettable Lock Open Device |
| CN204922192U (en) * | 2015-08-22 | 2015-12-30 | 浙江达柏林阀门有限公司 | Magnetic locking ball valve |
| CN206770654U (en) * | 2017-05-05 | 2017-12-19 | 王毅黎 | A kind of Anti-theft ball valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108006258A (en) * | 2017-12-27 | 2018-05-08 | 上海宝亚安全装备股份有限公司 | A kind of self-locking ball valve device |
| CN112576937A (en) * | 2020-12-02 | 2021-03-30 | 李思男 | Valve opening and closing mechanism for detecting air tightness of valve |
| CN113108114A (en) * | 2021-03-09 | 2021-07-13 | 陈东红 | Anti-theft and anti-misoperation manual valve |
| CN113108114B (en) * | 2021-03-09 | 2023-02-21 | 陈东红 | Anti-theft and anti-misoperation manual valve |
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| Publication number | Publication date |
|---|---|
| CN106939937B (en) | 2023-05-16 |
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Effective date of registration: 20231226 Address after: No. 39 Xinfeng Avenue, Jinfeng Town, High tech Zone, Jiulongpo District, Chongqing, 400000, Building 11-13 Patentee after: Fatilig (Chongqing) Technology Co.,Ltd. Address before: 401334 No. 1 Xia Jie, Qingbei District, Shapingba District, Chongqing, with No. 76 Patentee before: Wang Yili |