CN212080220U

CN212080220U - Limit type magnetic ball valve with lock

Info

Publication number: CN212080220U
Application number: CN202020329533.5U
Authority: CN
Inventors: 俞强君; 高翔
Original assignee: Ningbo Amico Copper Valves Manufacturing Co Ltd
Current assignee: Ningbo Amico Copper Valves Manufacturing Co Ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-12-04
Anticipated expiration: 2030-03-17

Abstract

The utility model discloses a spacing magnetic ball valve with lock, which can be installed on a medium conveying pipeline, and the structure of the ball valve comprises a valve body, a valve cover, a valve seat, a ball valve core, a valve rod, a lock cover, an unlocking handle and the like, wherein a spacing ring for positioning installation is mainly arranged on the top surface of the valve body, a limiting block is arranged on the inner circumferential surface of the spacing ring, the top end of the valve rod is arranged into a flat shaft, and the flat shaft passes through the spacing ring to be exposed, so that when the flat shaft rotates, the rotating stroke of the flat shaft can be limited by the limiting block, and the forward and reverse 90-degree rotating limiting of the valve; therefore, through the structural improvement, the accurate reliability of the whole ball valve in opening and closing limiting is realized, the operation difficulty is reduced, and the manufacturing requirement is reduced. Meanwhile, the locking magnetic block and the unlocking magnetic block are respectively designed on the lock cover and the unlocking handle by utilizing the principle of magnetic repulsion, so that the defects that the traditional mechanical locking structure is complex in design, easy to imitate, poor in anti-theft effect, poor in use safety, easy to damage artificially and the like can be overcome during operation.

Description

Limit type magnetic ball valve with lock

Technical Field

The utility model relates to an install ball valve structure on medium conveying pipeline specifically indicates spacing formula magnetism area lock ball valve.

Background

The ball valve is a common valve structure, mainly plays a role in cutting off, distributing and changing the flowing direction of a medium on a pipeline for conveying the medium, and is widely applied to industrial and civil pipelines for water supply, heating and the like due to simple structure and convenient operation. At present, the ball valves with locking structures are various in types, but most of the locking ball valves are not provided with limiting structures, a ball valve core can rotate 360 degrees in a valve body along with an unlocking handle, and the operation difficulty is undoubtedly improved by means of the experience of an operator if the valve is controlled to be in place or not. Some ball valves with limiting structures are arranged on the outer circumferential surface of a boss of a valve body, the ball valves and the valve body are integrally manufactured and molded through a mold, the requirement on the molding of a mold of the valve body is high, the manufacturing cost of the mold is also high, once the size precision of the limiting structures after the valve body is molded is too low, the limiting precision of the valve is relatively low, the problem of leakage caused by too small or not in place effective sealing surfaces when a valve core of a ball body rotates is easily caused, and the valve core of the ball body is used as a ball valve opening and closing part, and the sealing effect of the valve core directly influences the effective operation of a pipeline for installing the ball valve. In addition, most of common locking ball valves are of mechanical locking structures, the structure is simple, and the locking and unlocking assembly is easy to copy, so that the valve loses the locking and anti-theft significance.

Disclosure of Invention

The utility model aims to solve the technical problem that overcome prior art's defect and provide a spacing formula magnetism area lock ball valve of opening and close spacing accurate reliable, the theftproof effect is better.

The technical problem of the utility model is realized through following technical scheme:

a limit type magnetic ball valve with a lock comprises a valve body and a valve cover which is connected in an end opening of the valve body in a sealing way; a valve seat and a ball valve core which is rotatably and hermetically supported in the valve seat are arranged between the valve body and the valve cover, and the ball valve core is provided with a water through hole; a valve rod for operating the ball valve core to rotate to open and close the water through hole is arranged in the valve body, a limiting ring is arranged on the top surface of the valve body in a positioning mode, and a limiting block is arranged on the inner circumferential surface of the limiting ring; the top end of the valve rod is provided with a flat shaft, the flat shaft penetrates through the limiting ring to be exposed, the rotation stroke of the flat shaft is limited by the limiting block, and therefore the forward and reverse 90-degree rotation limiting of the valve rod is formed.

The limiting block is a sector block which is arranged on the inner circumferential surface of the limiting ring and has a central angle of 90 degrees; two centrosymmetric positioning protrusions are arranged on the outer circumferential surface of the limiting ring, and the side edges of the two positioning protrusions are parallel to one radius edge of the limiting block and are perpendicular to the other radius edge of the limiting block.

The rotation axis line of the flat shaft is overlapped with the circle center line of the limiting ring, and the flat shaft rotates forwards and backwards and is respectively contacted with two radius edges of the limiting block to form 90-degree rotation limiting.

The top surface of the valve body is provided with a convex ring, the convex ring is provided with two positioning grooves with central symmetry, the limiting ring is embedded in the convex ring in an inosculating way, and the two positioning protrusions are respectively positioned and assembled in the two positioning grooves.

The top of the valve body is provided with a lock cover which is rotatably arranged and an unlocking handle which controls the lock cover to rotate, and the lock cover is sleeved on the flat shaft of the valve rod in a transmission way and rotates synchronously with the flat shaft.

The bottom surface of the lock cover is provided with a sunk hole matched with the top of the valve body, a barb and an annular groove which are in running fit are respectively arranged between the hole wall of the sunk hole and the outer circumferential surface of the top of the valve body, and the lock cover is rotationally installed at the top of the valve body through the barb and the annular groove.

The top surface of the valve body is provided with a plurality of top holes, each top hole is internally provided with a spring and a locking magnetic block which is pushed upwards by the elasticity of the spring, and the bottom surface of the locking cover is correspondingly provided with a plurality of bottom holes with the same quantity and position as the top holes.

The unlocking handle is internally provided with a plurality of opening magnetic blocks with the same quantity and position as the bottom holes, and the magnetism of each opening magnetic block is repellent to that of each locking magnetic block.

And a convex rib and a groove which are positioned and assembled are respectively arranged between the top surface of the lock cover and the bottom surface of the unlocking handle.

The unlocking handle is separated from the locking cover, the locking magnetic block is pushed upwards by the elasticity of the spring and is clamped in the top hole and the bottom hole at the same time, and the locking cover and the valve rod do not rotate relative to the valve body; the bottom surface of the unlocking handle is positioned and assembled on the top surface of the lock cover, each unlocking magnetic block pushes each corresponding locking magnetic block to be separated from each bottom hole under the action of repulsive magnetic force, and the unlocking handle drives the lock cover and the valve rod to synchronously rotate.

Compared with the prior art, the utility model is mainly characterized in that the top surface of the valve body is provided with a locating ring which is positioned and installed, the inner circumferential surface of the locating ring is provided with a limiting block, the top end of the valve rod is arranged as a flat shaft, and the flat shaft passes through the locating ring to be exposed, so that when the flat shaft rotates, the rotating stroke of the flat shaft is limited by the limiting block, and the forward and backward 90-degree rotating limiting of the valve rod is formed; therefore, through the structural improvement, the accurate reliability of the whole ball valve in opening and closing limiting is realized, the operation difficulty is reduced, and the manufacturing requirement is reduced. Meanwhile, the locking magnetic block and the unlocking magnetic block are respectively designed on the lock cover and the unlocking handle by utilizing the principle of magnetic repulsion, so that the defects of complicated mechanical locking structure design, easy imitation, poor anti-theft effect, poor use safety, easy artificial damage and the like can be better avoided in actual operation.

Drawings

Fig. 1 is a schematic sectional view of the present invention.

Fig. 2 is a top view of the unlocking handle of fig. 1 removed.

Fig. 3 is a sectional view a-a of fig. 2.

Fig. 4 is a schematic sectional structure view of the valve body.

Fig. 5 is a left side view (partially in section) of fig. 4.

Fig. 6 is a top view of fig. 4.

Fig. 7 is a partial cross-sectional view of the locking cap.

Fig. 8 is a bottom view of fig. 7.

Fig. 9 is a top view of fig. 7.

Fig. 10 is an enlarged schematic structural view of the spacing collar.

Fig. 11 is a top view of fig. 10.

Fig. 12 is a schematic view of the valve stem.

Fig. 13 is a left side view of fig. 12.

Fig. 14 is a partial cross-sectional view of the unlocking handle.

Fig. 15 is a bottom view of fig. 14.

Fig. 16 is a top view in the direction B of fig. 14.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the drawings.

As shown in fig. 1-16, 1 is a valve cover, 2 is a valve body, 21 is a valve rod hole, 22 is a convex ring, 23 is a positioning groove, 24 is a ring groove, 25 is a top hole, 3 is a valve seat, 4 is a ball valve core, 41 is a water through hole, 5 is a valve rod, 51 is a flat shaft, 6 is a limiting ring, 61 is a limiting block, 611 is a radius edge, 62 is a positioning convex, 7 is a locking cover, 71 is a sunk circular hole, 72 is a barb, 73 is a square hole, 74 is a bottom hole, 75 is a convex rib, 8 is an unlocking handle, 81 is a body, 82 is an operating rod, 83 is a groove, 84 is an opening magnetic block, 85 is a blank cover, 9 is a dust cover, 10 is a spring, and 11 is a locking magnetic block.

A limiting type magnetic ball valve with a lock is shown in figures 1-3 and mainly relates to a ball valve structure arranged on a medium conveying pipeline, and the structure of the ball valve structure comprises a valve body 2 and a valve cover 1 which is connected in an end opening of the valve body in a sealing mode; a valve seat 3 and a ball valve core 4 which is rotatably and hermetically supported in the valve seat are arranged between the valve body 2 and the valve cover 1, and the ball valve core is provided with a horizontally through water through hole 41; the valve body 2 is internally provided with a valve rod hole 21 and a valve rod 5 which is vertically and rotatably and hermetically arranged in the valve rod hole, the bottom end of the valve rod is in transmission connection with the top of the ball valve core 4, and the top end of the valve rod passes through the valve rod hole 21 and then is exposed at the top of the valve body 2, so that the ball valve core 4 can be operated to rotate through the exposed top end of the valve rod 5 to open and close the water through hole 41.

The top surface of the valve body 2 is provided with a limiting ring 6, the inner circumferential surface of the limiting ring is provided with a limiting block 61 shown in fig. 10 and 11, the limiting block is a fan-shaped block which is integrally formed on the inner circumferential surface of the limiting ring 6 and has a central angle of 90 degrees, the outer circumferential surface of the limiting ring 6 is provided with two rectangular positioning protrusions 62 which are centrosymmetric, the side edges of the two positioning protrusions are parallel to one radius edge 611 of the limiting block 61 and are vertical to the other radius edge 611 of the limiting block 61.

The top surface of the valve body 2 is provided with a convex ring 22 as shown in fig. 4-6, the convex ring and the valve rod hole 21 are positioned on the same circle center line, and the convex ring 22 is also provided with two rectangular positioning grooves 23 with central symmetry, so that the limiting ring 6 can be embedded in the convex ring 22 in an inosculation manner, and the two positioning protrusions 62 are just positioned and assembled in the two positioning grooves 23 respectively, namely the positioning and installation of the limiting ring 6 on the top surface of the valve body 2 are realized.

As shown in fig. 12 and 13, the top end of the valve rod 5 is provided with a flat shaft 51, the flat shaft penetrates through the limiting ring 6 to be exposed, and the rotation axis of the flat shaft 51 is also overlapped with the circle center line of the limiting ring 6, so that the rotation stroke of the flat shaft 51 is limited by the limiting block 61, specifically, the forward and reverse rotation of the flat shaft 51 is respectively contacted with the two radius sides 611 of the limiting block 61, and thus, the forward and reverse 90-degree rotation limiting of the valve rod 5 is formed. And, the spacing collar 6 as independent spare part is changed conveniently, even damage also need not to scrap whole valve body 2.

Meanwhile, the top of the valve body 2 is also provided with a lock cover 7 which is rotatably arranged and an unlocking handle 8 which controls the lock cover to rotate; wherein, the lock cover 7 is as shown in fig. 7-9, the bottom surface is provided with a counter bore hole 71 which is assembled at the top of the valve body 2, the counter bore hole is a step hole as shown in fig. 7, the convex ring 22 and the circular truncated cone-shaped valve body top are just assembled respectively, and a barb 72 and a ring groove 24 which are in rotating fit are arranged between the hole wall of the counter bore hole 71 and the outer circumferential surface of the valve body 2 top respectively, so that the rotating installation of the lock cover 7 at the top of the valve body 2 can be formed through the barb 72 and the ring groove 24; the lock cover 7 is sleeved on the flat shaft 51 of the valve rod 5 through the transmission of the central square hole 73, so that the lock cover can synchronously rotate with the flat shaft, namely the lock cover 7 is rotated to drive the valve rod 5 to synchronously rotate; the top of the square hole 73 of the locking cover 7 needs to be sealed by a dust cover 9 for proper dust protection.

The top surface of the valve body 2 is provided with a plurality of top holes 25, the embodiment designs four top holes 25 which are distributed in a square shape by taking the circular center line of the valve rod hole 21 as the center, each top hole is internally provided with a spring 10 and a locking magnetic block 11 which is pushed upwards by the elasticity of the spring, and correspondingly, the bottom surface of the locking cover 7 is also provided with four bottom holes 74 which are the same with the top holes 25 in number and position, so that the locking magnetic blocks 11 can be clamped in the top holes 25 and the bottom holes 74 simultaneously by the pushing of the spring 10 in a normal state, and the locking cover 7 and the valve rod 5 cannot rotate relative to the valve body 2, thereby playing a role in theft prevention.

The unlocking handle 8 is composed of a cylindrical body 81 and an operating rod 82 fixed on the top of the body in a transverse mode, as shown in fig. 14-16, four unlocking magnetic blocks 84 with the same number and positions as those of the bottom holes 74 are arranged in the body 81, each unlocking magnetic block is sealed and fixed in the body 81 through a blank cap 85, and each unlocking magnetic block 84 is magnetically repelled from each locking magnetic block 11.

Moreover, the convex rib 75 and the groove 83 which are assembled in a positioning mode are respectively arranged between the top surface of the lock cover 7 and the bottom surface of the unlocking handle 8, the straight rib and the straight groove are mainly adopted in the embodiment, and the four unlocking magnetic blocks 84 just correspond to the four bottom holes 74 respectively in position when the unlocking handle 8 is matched with the top surface of the lock cover 7 through the positioning assembly of the convex rib 75 and the groove 83.

The unlocking handle 8 of the utility model is separated from the locking cover 7, the locking magnetic block 11 is pushed upwards by the elasticity of the spring 10 and is simultaneously clamped in the top hole 25 and the bottom hole 74, so that the locking cover 7 and the valve rod 5 do not rotate relative to the valve body 2; when the bottom surface of the unlocking handle 8 is positioned and assembled on the top surface of the lock cover 7, each unlocking magnetic block 84 is pushed by the repulsive magnetic force to separate each corresponding locking magnetic block 11 from each bottom hole 74, and then the unlocking handle 8 can drive the lock cover 7 and the valve rod 5 to synchronously rotate, so that the purpose of opening and closing the ball valve is realized.

The above description is only an embodiment of the present invention, and those skilled in the art should understand that any structural design similar to the embodiment is included in the protection scope of the present invention.

Claims

1. A limit type magnetic ball valve with a lock comprises a valve body (2) and a valve cover (1) which is hermetically connected in an end port of the valve body; a valve seat (3) and a ball valve core (4) which is rotatably and hermetically supported in the valve seat are arranged between the valve body (2) and the valve cover (1), and a water through hole (41) is formed in the ball valve core; a valve rod (5) which operates the ball valve core (4) to rotate to open and close the water through hole (41) is arranged in the valve body (2), and the valve is characterized in that the top surface of the valve body (2) is provided with a positioning ring (6) which is positioned and installed, and the inner circumferential surface of the positioning ring is provided with a limiting block (61); the top end of the valve rod (5) is provided with a flat shaft (51), the flat shaft penetrates through the limiting ring (6) to be exposed, the rotation stroke of the flat shaft (51) is limited by the limiting block (61), and then the forward and reverse 90-degree rotation limiting of the valve rod (5) is formed.

2. The limit type magnetic ball valve with a lock according to claim 1, characterized in that the limit block (61) is a sector which is arranged on the inner circumferential surface of the limit ring (6) and has a central angle of 90 degrees; two centrosymmetric positioning protrusions (62) are arranged on the outer circumferential surface of the limiting ring (6), and the side edges of the two positioning protrusions are parallel to one radius edge (611) of the limiting block (61) and are perpendicular to the other radius edge (611) of the limiting block (61).

3. The spacing type magnetic ball valve with lock according to claim 2 is characterized in that the axis of rotation of the flat shaft (51) is overlapped with the line of the center of the spacing ring (6), and the flat shaft (51) rotates in the positive and negative directions and contacts with the two radius sides (611) of the spacing block (61) respectively to form a 90-degree rotation spacing.

4. The limiting type magnetic ball valve with the lock according to claim 2 is characterized in that a convex ring (22) is arranged on the top surface of the valve body (2), two centrosymmetric locating grooves (23) are arranged on the convex ring, the limiting ring (6) is embedded in the convex ring (22) in a matching mode, and the two locating protrusions (62) are respectively located and assembled in the two locating grooves (23).

5. The spacing type magnetic ball valve with lock according to claim 1 is characterized in that the top of the valve body (2) is provided with a lock cover (7) which is rotatably arranged and an unlocking handle (8) which controls the lock cover to rotate, and the lock cover (7) is sleeved on a flat shaft (51) of the valve rod (5) in a transmission way and rotates synchronously with the flat shaft.

6. The position limiting type magnetic ball valve with the lock is characterized in that the bottom surface of the lock cover (7) is provided with a sunk hole (71) which is assembled at the top of the valve body (2), a barb (72) and an annular groove (24) which are in running fit are respectively arranged between the hole wall of the sunk hole and the outer circumferential surface at the top of the valve body (2), and the turning installation of the lock cover (7) at the top of the valve body (2) is formed through the barb (72) and the annular groove (24).

7. The limit type magnetic ball valve with the lock according to claim 5, characterized in that the top surface of the valve body (2) is provided with a plurality of top holes (25), each top hole is internally provided with a spring (10) and a locking magnetic block (11) which is pushed upwards by the elasticity of the spring, and correspondingly, the bottom surface of the locking cover (7) is provided with a plurality of bottom holes (74) which have the same number and position as the top holes (25).

8. The position-limiting magnetic ball valve with a lock according to claim 7, characterized in that a plurality of opening magnetic blocks (84) with the same number and position as the bottom hole (74) are arranged in the unlocking handle (8), and each opening magnetic block is magnetically repelled from each locking magnetic block (11).

9. The position-limiting magnetic ball valve with a lock according to claim 8, characterized in that a rib (75) and a groove (83) are respectively arranged between the top surface of the lock cover (7) and the bottom surface of the unlocking handle (8).

10. The spacing type magnetic ball valve with lock according to claim 9 is characterized in that the unlocking handle (8) is separated from the lock cover (7), the locking magnetic block (11) is pushed upwards by the elasticity of the spring (10) and is clamped in the top hole (25) and the bottom hole (74) at the same time, and the lock cover (7) and the valve rod (5) do not rotate relative to the valve body (2); the bottom surface of the unlocking handle (8) is positioned and assembled on the top surface of the lock cover (7), each unlocking magnetic block (84) is pushed to separate each corresponding locking magnetic block (11) from each bottom hole (74) by repulsive magnetic force, and the unlocking handle (8) drives the lock cover (7) and the valve rod (5) to synchronously rotate.