CN106979353B - Lock control ball valve - Google Patents
Lock control ball valve Download PDFInfo
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- CN106979353B CN106979353B CN201710265759.6A CN201710265759A CN106979353B CN 106979353 B CN106979353 B CN 106979353B CN 201710265759 A CN201710265759 A CN 201710265759A CN 106979353 B CN106979353 B CN 106979353B
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- ball valve
- magnetic
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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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
- F16K35/16—Means to prevent accidental or unauthorised actuation with locking member actuated by magnet
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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
- F16K5/0647—Spindles or actuating means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses a lock control ball valve, which comprises a valve body, a valve rod and a handle; the valve body is provided with a hollow convex neck; the valve rod is arranged in the convex neck; the handle is connected with one end of the valve rod, and a magnetic locking assembly is arranged between the handle and the valve rod; one end of the valve rod is detachably connected with a limiting piece, a cavity is arranged on the handle, and the limiting piece is vertically movably arranged in the cavity and limited in the cavity; a return spring is arranged between the limiting piece and the bottom wall of the cavity; when the magnetic locking component unlocks the handle and the valve rod, the handle is downwards sprung by the action of the return spring, and the ball valve is in a free switch state; when the handle moves upwards to a set position, the magnetic locking assembly locks the handle and the valve rod, and the ball valve is in a locking state. The lock control ball valve is locked by pulling the handle, so that misoperation can be avoided, and the ball valve is simple in structure and quite convenient to operate.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a lock control ball valve.
Background
The valve has wide application in various pipelines in water supply, air supply, pipeline transportation and other industries. In many applications, it is desirable to control the valve to prevent others from opening and closing at will. Thus, a valve with a locking device is very practical. The existing valves with locking devices are of various types and different in structure. Some use mechanical cylinder locks or electronic locks to lock the handle or stem of the valve. This approach, while viable, is inconvenient for a manager to control a large number of users because different valves require different keys or passwords to open. The magnetic principle is utilized, and a special tool is adopted for opening, so that the method is an ideal method.
If the China patent library discloses an anti-disassembly ball valve [ application number is: 201310025948.8 it is characterized by that it also includes a magnetic automatic locking mechanism, and by means of pressing handle, the reset spring in the handle is compressed, and when the handle is moved downwards, two opposite positions of the handle are cut, and the opposite magnetic cylindrical pins are attracted together, and then can be fed into the valve stem groove so as to implement locking. The anti-disassembly ball valve has the following defects: because the anti-disassembly ball valve needs to press the handle downwards to realize locking, misoperation is easy to be caused by pressing the handle, and if the handle is pressed carelessly in the process of installing the ball valve, the ball valve can be locked, so that unnecessary trouble is caused.
The Chinese patent library discloses a lock control ball valve [ application number is: 201420761195.7 the valve body comprises a neck, the neck is cylindrical, a valve core and a valve rod are arranged in the valve body, the outer end of the valve rod extends out of the neck, and an O-shaped ring is arranged on the outer edge of the inner end of the valve rod. The valve core outer side wall is provided with a socket, the inner end of the valve rod is inserted into the socket to enable the valve rod to drive the valve core to rotate, a strip-shaped lock hole is radially penetrated through the inner end of the valve rod, two ends of the lock hole are respectively inserted with a magnetic column, magnetic poles at two adjacent ends of the two magnetic columns are opposite, two sides of the neck are respectively provided with positioning holes corresponding to the positions of the lock hole, the other ends of the two magnetic columns are respectively inserted into the corresponding positioning holes, a power piece which enables the two magnetic columns to have opposite stable trend is arranged in the neck, and a limiting groove which enables an O-shaped ring to be clamped in when the valve rod moves inwards in a translation mode is further formed in the inner side wall of the neck. Such a lock ball valve has the following drawbacks: when the ball valve is required to be locked, the ball valve is closed firstly, then the valve rod is pulled upwards to enable the O-shaped ring to be separated from the limiting groove, at the moment, under the combined action of the power piece and the opposite magnetic poles at the two adjacent ends of the two magnetic columns, the two magnetic columns are reinserted into the lock hole to lock the valve rod, the lock ball control valve is complex in structure and quite troublesome to operate, the valve rod is installed in the handle, and the pulling is quite inconvenient.
Disclosure of Invention
The invention aims to solve the technical problems of providing a lock control ball valve, which is capable of preventing misoperation by pulling a handle upwards to lock the ball valve, and is simple in structure and quite convenient to operate.
The technical scheme of the invention is that the lock control ball valve with the following structure is provided, and comprises a valve body, a valve rod and a handle; the valve body is provided with a hollow convex neck; the valve rod is arranged in the convex neck; the handle is connected to one end of the valve rod, and a magnetic locking assembly is arranged between the handle and the valve rod; one end of the valve rod is detachably connected with a limiting piece, a cavity is arranged on the handle, and the limiting piece is vertically movably arranged in the cavity and limited in the cavity; a return spring is arranged between the limiting piece and the bottom wall of the cavity; when the magnetic locking component unlocks the handle and the valve rod, the handle is downwards sprung by the action of the return spring, and the ball valve is in a free switch state; when the handle moves upwards to a set position, the magnetic locking assembly locks the handle and the valve rod, and the ball valve is in a locking state.
After adopting above structure, the lock control ball valve of the invention has the following advantages compared with the prior art:
because the limiting piece of the lock control ball valve is movably arranged in the cavity up and down and is limited in the cavity, a return spring is arranged between the limiting piece and the bottom wall of the cavity, when the handle and the valve rod are unlocked, the handle can be downwards sprung by the action of the return spring, so that the ball valve is in a free switch state; when the handle is pulled upwards to a certain position, the magnetic locking assembly locks the handle and the valve rod, and the ball valve is in a locking state, so that misoperation can be avoided, and the magnetic locking assembly is simple in integral structure and quite convenient to operate.
As an improvement, the handle is provided with a valve rod hole communicated with the cavity, and the valve rod is matched in the valve rod hole; the inner wall of the valve rod hole is provided with a first boss, and the outer surface of the valve rod is provided with a limit step; the first boss is limited on the upper side of the limiting step. After the structure is adopted, the limiting step has a limiting effect on the first boss, so that the downward flicking distance of the handle is limited.
As an improvement, the limiting part comprises a limiting cap and a connecting rod, the limiting cap is connected to one end of the connecting rod, the connecting rod is detachably connected to one end of the valve rod, and the limiting cap is limited in the cavity. After adopting this kind of structure, locating part simple structure, the locating part passes through the connecting rod to be connected with the valve rod, simple structure and convenient connection.
As an improvement, the connecting rod is connected to the middle part of the valve rod, and the limiting step is an end face of one end of the valve rod. After adopting this kind of structure, simple structure, equipment and preparation are all more convenient.
As an improvement, the lower end part of the handle is provided with a second boss, and the peripheral surface of the convex neck is provided with an opening limiting lug and a closing limiting lug; when the ball valve is in a free switch state, the second boss is positioned between the opening limiting lug and the closing limiting lug and is driven by the handle to rotate along the circumferential direction of the convex neck. After the structure is adopted, a second boss rotating range is arranged between the opening limiting lug and the closing limiting lug, and when the second boss is abutted against the opening limiting lug, the ball valve is in an opening state; when the second boss is abutted against the closing limiting lug, the ball valve is in a closing state.
As an improvement, the lower end of the handle is provided with a convex neck groove communicated with the valve rod hole; the second boss is arranged on the inner wall of the convex neck groove; when the ball valve is in a free switch state, the lower end of the handle is sleeved outside the convex neck, and the convex neck is accommodated in the convex neck groove. After adopting this kind of structure, simple structure, the protruding neck inslot is located to the second boss, simple structure and reasonable.
As an improvement, a limit baffle is arranged on the outer peripheral surface of the convex neck and positioned between the opening limit lug and the closing limit lug, and a notch for the second boss to pass through is arranged between the opening limit lug and the limit baffle or between the closing limit lug and the limit baffle or on the limit baffle; when the ball valve is in a free switch state, the second boss can rotate at the lower side of the limit baffle. After the structure is adopted, the second boss is positioned at the lower side of the limit baffle plate in the rotating process, the handle is prevented from being pulled up manually in the rotating process, the position of the notch is the position where the handle can be pulled up, and thus the handle and the valve rod can be accurately locked, and the operation is very convenient.
As an improvement, the notch is arranged between the closing limit lug and the limit baffle; when the ball valve is in a locking state, the second boss is accommodated in the notch. After the structure is adopted, the handle can be pulled upwards after the valve is closed, and the handle and the valve rod are locked, so that the design is optimal; when the ball valve is in a locking state, the second boss is accommodated in the notch, and the handle is limited, so that the handle cannot rotate.
As an improvement, the magnetic locking component comprises at least two magnetic pins and at least two springs, and at least two radial pin grooves are formed in the inner wall of the valve rod hole; a clamping groove is formed in the peripheral wall of the valve rod; the magnetic pins are in sliding fit in the corresponding radial pin grooves, and the springs are arranged between the corresponding magnetic pins and the bottoms of the radial pin grooves; when the handle and the valve rod are locked, one end of the magnetic pin is accommodated in the radial pin groove, and the other end of the magnetic pin is accommodated in the clamping groove; when the handle and the valve rod are unlocked, one end of the magnetic pin is accommodated in the radial pin groove, and the other end of the magnetic pin is propped against the outer wall of the valve rod. After adopting this kind of structure, magnetism locking component simple structure, equipment is convenient.
As an improvement, two radial pin grooves are arranged, the two radial pin grooves are oppositely arranged, and correspondingly, the two magnetic pins and the two springs are also arranged. With this construction, this design is optimal.
Drawings
FIG. 1 is a schematic cross-sectional view of a lock ball valve of the present invention in a locked state.
FIG. 2 is a schematic cross-sectional view of the free-opening and closing state of the lock ball valve of the present invention.
Fig. 3 is a schematic diagram of a front view structure of the lock ball valve of the present invention.
Fig. 4 is a schematic top view of the lock ball valve of the present invention.
Fig. 5 is a schematic side view of the lock ball valve of the present invention.
Fig. 6 is a schematic view of the sectional structure in the direction B-B in fig. 5.
Fig. 7 is a schematic structural view of a handle of the lock ball valve of the present invention.
Fig. 8 is a schematic structural view of an unlocking key of the lock control ball valve of the present invention.
The figure shows: 1. valve body, 2, valve rod, 201, spacing step, 202, draw-in groove, 3, handle, 301, cavity, 302, valve rod hole, 303, first boss, 304, second boss, 306, radial keyway, 307, protruding neck groove, 4, case, 5, protruding neck, 501, opening spacing lug, 502, closing spacing lug, 503, limit baffle, 504, breach, 505, breach, 6, limiter, 601, spacing cap, 602, connecting rod, 7, return spring, 8, magnetic pin, 9, spring, 10, unlocking key, 1001, magnet.
Detailed Description
The invention will be further described with reference to the drawings and the specific examples.
Referring to fig. 1, the lock ball valve of the present invention includes a valve body 1, a valve rod 2, a handle 3, and a valve core 4. The valve body 1 is provided with a hollow convex neck 5, and the valve rod 2 is arranged in the convex neck 5. The valve core 4 is arranged in the valve body 1. The handle 3 is connected to one end of the valve rod 2, the other end of the valve rod 2 is connected with the valve core 4, the handle 3 drives the valve rod 2 to rotate, and the valve rod 2 drives the valve core 4 to rotate. A magnetic locking component is arranged between the handle 3 and the valve rod 2.
One end of the valve rod 2 is detachably connected with a limiting piece 6, the handle 3 is provided with a cavity 301, and the limiting piece 6 is vertically movably arranged in the cavity 301 and limited in the cavity 301. A return spring 7 is arranged between the limiting piece 6 and the bottom wall of the cavity 301. When the magnetic locking component unlocks the handle 3 and the valve rod 2, the handle 3 is downwards sprung by the action of the return spring 7, the ball valve is in a free switch state, and the return spring 7 is in a natural expansion state or a slight compression state. When the handle 3 moves upwards to a set position, the magnetic locking assembly locks the handle 3 and the valve rod 2, the ball valve is in a locking state, and the return spring is in a compression state.
The handle 3 is provided with a valve rod hole 302 communicated with the cavity 301, and the valve rod 2 is matched in the valve rod hole 302; a first boss 303 is arranged on the inner wall of the valve rod hole 302, and a limit step 201 is arranged on the outer surface of the valve rod 2; the first boss 303 is limited on the upper side of the limiting step 201. The limiting piece 6 comprises a limiting cap 601 and a connecting rod 602, the limiting cap 601 is connected to one end of the connecting rod 602, the connecting rod 602 is detachably connected to one end of the valve rod 2, and the limiting cap 601 is limited in the cavity 301. The connecting rod 602 is connected to the middle part of the valve rod 2, and the limit step 201 is an end face of one end of the valve rod 2. The limit cap 601 and the connecting rod 602 are integrally formed, in this embodiment, the limit member 6 is a screw, the limit cap 601 is a nut of the screw, and the connecting rod 602 is a screw rod of the screw; the end face of one end of the valve rod 2 is provided with a threaded hole, and one end of the screw rod is in threaded fit with the threaded hole.
The lower end part of the handle 3 is provided with a second boss 304, and the outer peripheral surface of the convex neck 5 is provided with an opening limit lug 501 and a closing limit lug 502; when the ball valve is in a free switch state, the second boss 304 is positioned between the opening limiting lug 501 and the closing limiting lug 502, and the second boss 304 is driven by the handle 3 to rotate along the circumference of the convex neck 5. The lower end of the handle 3 is provided with a convex neck groove 307 communicated with the valve rod hole 302; the second boss 304 is arranged on the inner wall of the convex neck groove 307; when the ball valve is in a free switch state, the lower end of the handle 3 is sleeved outside the convex neck 5, and the convex neck 5 is accommodated in the convex neck groove 307.
A limit baffle 503 is arranged on the outer peripheral surface of the convex neck 5 and between the opening limit lug 501 and the closing limit lug 502, and a notch 504 for the second boss 304 to pass through is arranged between the opening limit lug 501 and the limit baffle 503 or between the closing limit lug 502 and the limit baffle 503 or on the limit baffle 503; in this embodiment, the notch 504 is a sector. When the ball valve is in a free switch state, a movable space 505 is formed among the opening limit lug 501, the closing limit lug 502 and the limit baffle 503, and along with the downward flicking process of the handle 3, the second boss 304 penetrates through the notch 504 and is contained in the movable space 505, and the second boss 304 can rotate at the lower side of the limit baffle 503, namely, can move in the movable space 505. In this embodiment, the notch 504 is disposed between the closing stop lug 502 and the stop plate 503, that is, when the ball valve is in a closed state, the second boss 304 can pass through the notch 504, so that the ball valve can be locked or unlocked at this time. The opening limiting lug 501 and the closing limiting lug 502 are oppositely arranged on the outer peripheral surface of the ground protruding neck 5, in order to enable the handle 3 and the protruding neck 5 to be connected more stably, limiting baffles 503 can be arranged on two sides of the protruding neck 5, and two second bosses 304 can be arranged on the inner wall of the protruding neck groove 307 correspondingly, and the two second bosses 304 are oppositely arranged. Because the two limit baffles 503 and the second boss 304 are oppositely arranged, another notch 504 is required to be arranged between the opening limit lug 501 and the limit baffle 503, so that when the ball valve is in a closed state, the handle 3 is pulled upwards, and the two second bosses 304 on the handle 3 can pass through the corresponding notches 504 at the same time.
The magnetic locking component comprises at least two magnetic pins 8 and at least two springs 9, and at least two radial pin grooves 306 are arranged on the inner wall of the valve rod hole 302; a clamping groove 202 is formed in the outer peripheral wall of the valve rod 2; the magnetic pins 8 are in sliding fit in the corresponding radial pin grooves 306, and the springs 9 are arranged between the corresponding magnetic pins 8 and the bottoms of the radial pin grooves 306; when the handle 3 and the valve rod 2 are locked, one end of the magnetic pin 8 is accommodated in the radial pin groove 306, and the other end of the magnetic pin 8 is accommodated in the clamping groove 202; when the handle 3 and the valve rod 2 are unlocked, one end of the magnetic pin 8 is accommodated in the radial pin groove 306, and the other end of the magnetic pin 8 abuts against the outer wall of the valve rod 2. The radial pin grooves 306 are arranged in two, the two radial pin grooves 306 are arranged oppositely, and correspondingly, the two magnetic pins 8 and the two springs 9 are also arranged. The clamping groove 202 may be annular or a counter bore corresponding to the magnetic pin 8.
When the magnetic locking assembly locks the handle 3 and the valve rod 2, a certain moving distance exists between the lower surface of the first boss 303 and the end face of one end of the valve rod 2, and the moving distance is the downward movement stroke of the handle 3, so that the downward movement stroke of the handle 3 can be controlled by setting the distance between the first boss 303 and the end face of the valve rod 2.
The working process of the lock control ball valve is as follows:
setting the initial state of the ball valve as a free switch state: the magnetic pin 8 is staggered from the clamping groove 202 on the valve rod 2, and the end surface of the magnetic pin 8 is abutted against the side wall of the valve rod 2 positioned at the lower side of the clamping groove 202. The second boss 304 is accommodated in the movable space 505, and the second boss 304 is driven by the handle 3 to rotate under the limit baffle 503. The lower surface of the first boss 303 abuts against the end surface of one end of the valve rod 2. The handle 3 realizes 90-degree rotation limit through the second boss 304, the opening limit lug 501 and the closing limit lug 502, and the handle 3 rotates clockwise or anticlockwise for 90 degrees to realize the closing or opening of the ball valve.
When the ball valve is locked: the ball valve is closed and the second boss 304 is aligned with the notch 504 and positioned directly below the notch 504. The handle 3 is pulled upwards, and the handle 3 moves upwards together with the magnetic pin 8 located inside. When the magnetic pin 8 moves to be positioned on the same horizontal line with the clamping groove 202 on the side wall of the valve rod 2, the magnetic pin 8 is pushed into the clamping groove 202 under the action of the spring 9, and the handle 3 and the valve rod 2 are locked. At this time, the second boss 304 on the handle 3 is just located in the notch 504, so that the handle 3 is limited to rotate to realize the locking of the ball valve, that is, the travel of the handle is smaller than the distance between the lower surface of the second boss and the upper edge of the notch when the ball valve is in the open state.
When the ball valve is opened: the unlocking key 10 is sleeved outside the handle 3, the unlocking key 10 is of a cover-shaped structure, a magnet 1001 is arranged on the inner wall of the unlocking key 10 at a position corresponding to the magnetic pin 8 on the handle 3, and the magnetic pin 8 is different from the end part opposite to the magnet 1001 in magnetism. When the unlocking key 10 is sleeved outside the handle 3, the magnet 1001 attracts the magnetic pin 8 in a direction away from the clamping groove 202, the magnetic pin 8 is firmly clamped with the lower wall of the clamping groove 202 under the action of the elastic force of the spring 9 in the process of exiting the clamping groove 202, and the magnetic pin 8 cannot retract into the radial pin groove 306 under the action of friction force. At this time, the handle 3 is light upwards, and the handle 3 drives the magnetic pin 8 to move upwards, so that the magnetic pin 8 is separated from the lower wall of the clamping groove 202, and the magnetic pin 8 is withdrawn from the clamping groove 202 and is accommodated in the radial pin groove 306. At the same time, the upward lifting force of the handle 3 is canceled, and the handle 3 is sprung downward by the return spring 7 until the first boss 303 abuts against the end face of the valve rod 2. At this time, the second boss 304 of the handle 3 passes through the notch 504 and is located below the notch 504, and the ball valve is in a free switch state.
Claims (7)
1. The utility model provides a lock accuse ball valve which characterized in that: comprises a valve body, a valve rod and a handle; the valve body is provided with a hollow convex neck; the valve rod is arranged in the convex neck; the handle is connected to one end of the valve rod, and a magnetic locking assembly is arranged between the handle and the valve rod; one end of the valve rod is detachably connected with a limiting piece, a cavity is arranged on the handle, and the limiting piece is vertically movably arranged in the cavity and limited in the cavity; a return spring is arranged between the limiting piece and the bottom wall of the cavity; when the magnetic locking component unlocks the handle and the valve rod, the handle is downwards sprung by the action of the return spring, and the ball valve is in a free switch state; when the handle moves upwards to a set position, the magnetic locking assembly locks the handle and the valve rod, and the ball valve is in a locking state;
the lower end part of the handle is provided with a second boss, and the peripheral surface of the convex neck is provided with an opening limiting lug and a closing limiting lug; when the ball valve is in a free switch state, the second boss is positioned between the opening limiting lug and the closing limiting lug and is driven by the handle to rotate along the circumferential direction of the convex neck; the handle is provided with a valve rod hole communicated with the cavity, and the lower end of the handle is provided with a convex neck groove communicated with the valve rod hole; the second boss is arranged on the inner wall of the convex neck groove; when the ball valve is in a free switch state, the lower end of the handle is sleeved outside the convex neck, and the convex neck is accommodated in the convex neck groove; a limit baffle is arranged on the outer peripheral surface of the convex neck and positioned between the opening limit lug and the closing limit lug, and a notch for the second boss to pass through is arranged between the opening limit lug and the limit baffle or between the closing limit lug and the limit baffle or on the limit baffle; when the ball valve is in a free switch state, the second boss can rotate at the lower side of the limit baffle.
2. The lock control ball valve according to claim 1, wherein: the valve rod is matched in the valve rod hole; the inner wall of the valve rod hole is provided with a first boss, and the outer surface of the valve rod is provided with a limit step; the first boss is limited on the upper side of the limiting step.
3. The lock control ball valve according to claim 2, wherein: the limiting piece comprises a limiting cap and a connecting rod, wherein the limiting cap is connected to one end of the connecting rod, the connecting rod is detachably connected to one end of the valve rod, and the limiting cap is limited in the cavity.
4. A lock-controlled ball valve according to claim 3, wherein: the connecting rod is connected to the middle part of the valve rod, and the limiting step is the end face of one end of the valve rod.
5. The lock control ball valve according to claim 1, wherein: the notch is arranged between the closing limit lug and the limit baffle; when the ball valve is in a locking state, the second boss is accommodated in the notch.
6. The lock control ball valve according to claim 2, wherein: the magnetic locking assembly comprises at least two magnetic pins and at least two springs, and at least two radial pin grooves are formed in the inner wall of the valve rod hole; a clamping groove is formed in the peripheral wall of the valve rod; the magnetic pins are in sliding fit in the corresponding radial pin grooves, and the springs are arranged between the corresponding magnetic pins and the bottoms of the radial pin grooves; when the handle and the valve rod are locked, one end of the magnetic pin is accommodated in the radial pin groove, and the other end of the magnetic pin is accommodated in the clamping groove; when the handle and the valve rod are unlocked, one end of the magnetic pin is accommodated in the radial pin groove, and the other end of the magnetic pin is propped against the outer wall of the valve rod.
7. The lock control ball valve according to claim 6, wherein: the two radial pin grooves are arranged oppositely, and correspondingly, the two magnetic pins and the two springs are also arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265759.6A CN106979353B (en) | 2017-04-21 | 2017-04-21 | Lock control ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265759.6A CN106979353B (en) | 2017-04-21 | 2017-04-21 | Lock control ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106979353A CN106979353A (en) | 2017-07-25 |
| CN106979353B true CN106979353B (en) | 2023-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710265759.6A Active CN106979353B (en) | 2017-04-21 | 2017-04-21 | Lock control ball valve |
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| CN (1) | CN106979353B (en) |
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| CN108272183A (en) * | 2018-01-22 | 2018-07-13 | 浙江海康科技有限公司 | A kind of low-power consumption positioning tamper bracelet and its positioning system based on RFID technique |
| CN110507875B (en) * | 2018-05-21 | 2024-09-06 | 北京科联升华医疗科技有限公司 | Flow velocity controller with flow locking mechanism |
| CN108612906A (en) * | 2018-06-11 | 2018-10-02 | 天津隆志阀门有限公司 | A kind of water proof type valve two-stage drive device |
| CN109185490B (en) * | 2018-11-14 | 2024-05-14 | 浙江迪艾智控科技股份有限公司 | Magnetic control valve and assembly thereof |
| CN111577922B (en) * | 2020-05-18 | 2021-11-09 | 希佛隆阀门集团有限公司 | Ball valve |
| CN113819396B (en) * | 2020-06-18 | 2023-07-18 | 北京机械设备研究所 | Electromagnetic switch gas integrated valve suitable for underwater projectile |
| CN113819814B (en) * | 2020-06-18 | 2023-06-20 | 北京机械设备研究所 | Electromagnetic switch gas control method suitable for underwater projectile |
| CN115234702A (en) * | 2022-07-26 | 2022-10-25 | 宁波华成阀门有限公司 | Valve capable of preventing misoperation and use method thereof |
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| US5183073A (en) * | 1992-04-02 | 1993-02-02 | Milwaukee Valve Company, Inc | Handle locking mechanism for quarter turn valves |
| CN101387354A (en) * | 2008-11-03 | 2009-03-18 | 董服义 | Flow adjustable lock valve with hidden lockset |
| CN202109022U (en) * | 2011-06-17 | 2012-01-11 | 宁波志清实业有限公司 | Theft-proof ball valve |
| CN103353015B (en) * | 2013-07-09 | 2015-09-23 | 福建省海洋阀门科技有限公司 | Multifunctional magnetic valve lock |
| CN203836270U (en) * | 2014-06-03 | 2014-09-17 | 宁波志清实业有限公司 | Anti-theft ball valve |
| CN206802368U (en) * | 2017-04-21 | 2017-12-26 | 宁波杰克龙精工有限公司 | Lock controlled ball valve |
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2017
- 2017-04-21 CN CN201710265759.6A patent/CN106979353B/en active Active
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