CN215487970U

CN215487970U - Magnetic locking valve

Info

Publication number: CN215487970U
Application number: CN202122410983.4U
Authority: CN
Inventors: 董西伟
Original assignee: Taizhou Bomiao Water Control Equipment Co ltd
Current assignee: Taizhou Bomiao Water Control Equipment Co ltd
Priority date: 2021-10-07
Filing date: 2021-10-07
Publication date: 2022-01-11
Anticipated expiration: 2031-10-07

Abstract

The utility model provides a magnetic locking valve, and belongs to the technical field of valves. It has solved the not enough problem of security. The valve comprises a valve body, a valve cap fixed at the upper end of the valve body and a locking cap connected to the valve cap, wherein a magnetic locking mechanism capable of fixing the valve cap and the locking cap along the circumferential direction is arranged between the valve cap and the locking cap, a valve rod penetrates through the valve body, the upper end of the valve rod penetrates through the valve cap and is inserted into the locking cap, an annular convex shoulder is arranged on the outer side of the valve cap, an annular bulge is fixedly connected to the upper side face of the annular convex shoulder, the lower end of the locking cap is positioned on the inner side of the annular bulge, the lateral part of the lower end of the locking cap is provided with an upward annular limiting face, the upper end of the annular bulge is provided with a connecting part which is inwards shrunk to abut against the annular limiting face so as to prevent the locking cap and the valve cap from being disengaged along the axial direction of the valve rod, a non-circular connecting hole is arranged in the locking cap, and a connecting part matched with the connecting hole in shape is arranged at the upper end of the valve rod. It has the advantages of high safety, convenient manufacture, low cost, etc.

Description

Magnetic locking valve

Technical Field

The utility model belongs to the technical field of valves, and relates to a magnetic locking valve.

Background

The magnetic locking valve is widely used for controlling the locking and unlocking of cold and hot water and heating pipelines, can prevent the valve from being used by any switch, and is an ideal product for intelligent management of the property of modern residential districts. For example, the patent application No. 200920313315.6 discloses a valve with a magnetic lock, which comprises a valve body, a valve cap and a hand wheel, wherein a valve core and a valve rod are arranged in the valve body, one end of the valve rod is connected with the valve core, the other end of the valve rod penetrates through the valve cap and is fixedly connected with the lock cap, the bottom surface of the lock cap is abutted against the top surface of the valve cap, a pin groove is arranged on the bottom surface of the lock cap, and a first magnetic body is arranged in the pin groove; the top surface of the valve cap is provided with a pin and a locking mechanism which can enable the pin to partially penetrate into the pin groove and enable the valve cap and the lock cap to be fixed in the circumferential direction; the hand wheel is fixedly connected with a second magnetic body, and when the hand wheel is circumferentially fixed and detachably connected with the lock cap, the first magnetic body and the second magnetic body repel each other and enable the pin to be separated from the pin slot.

However, the valve with the magnetic lock also has certain disadvantages: in this valve of taking magnetism lock, the valve rod links firmly mutually through the locating pin with the lock nut, and because the valve rod is axial fixity with the valve cap, just be equivalent to the lock nut and pass through between locating pin and the valve cap and form axial fixity, consequently add the fixing that just needs punch the outside at the lock nut and just can cooperate the locating pin, leave over the wound on making the lock nut very easily like this, and whole valve lock nut also all directly exposes outside after the whole assembly is accomplished, other people just can carry out malicious destruction to the valve from the department of punching of lock nut, thereby lead to the valve to become invalid.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the prior art and provide a magnetic locking valve, which solves the problem of insufficient safety.

The purpose of the utility model can be realized by the following technical scheme:

the magnetic locking valve comprises a valve body, a valve cap fixed at the upper end of the valve body and a locking cap connected onto the valve cap, wherein a magnetic locking mechanism capable of fixing the valve cap and the locking cap along the circumferential direction is arranged between the valve cap and the locking cap, a valve rod is arranged in the valve body in a penetrating mode, the upper end of the valve rod penetrates through the valve cap and is inserted into the locking cap, the outer side of the valve cap is provided with an annular convex shoulder, an annular protrusion is fixedly connected to the upper side face of the annular convex shoulder, the lower end of the locking cap is located on the inner side of the annular protrusion, the side portion of the lower end of the locking cap is provided with an upward annular limiting face, the upper end of the annular protrusion is provided with a connecting portion which can be abutted to the annular limiting face to prevent the locking cap from being axially disconnected with the valve cap along the valve rod, a non-circular connecting hole is formed in the locking cap, and a connecting portion matched with the connecting hole in shape is arranged at the upper end of the valve rod.

When in production, the locking cap is connected to the valve cap, the lower end of the locking cap is abutted against the annular convex shoulder and is positioned on the inner side of the annular bulge, and the coupling part at the upper end of the valve rod is inserted into the coupling hole in the locking cap so that the locking cap and the valve rod are fixed in the circumferential direction. Then, extrude from the annular protruding upper end outside and make its shrink inwards, will form on the annular protruding and lean on the connecting portion that can support on the spacing face of annular so to make locknut and valve cap along the axial fixity of valve rod together through the cooperation of connecting portion and the spacing face of annular, can not influence the relative rotation between locknut and the valve cap again when the unblock of magnetism locking mechanical system simultaneously. Through the setting of above-mentioned structure for this magnetism lock valve need not the rethread and is connected valve cap and lock cap from the mode of outside round pin, has stopped the valve from the destroyed possibility in outside from this, has improved the security. Moreover, the structure does not need other connecting parts, and the lock cap and the valve cap are produced by machining, so that the structure is more convenient to manufacture and lower in cost.

In the magnetic locking gate valve, the side part of the lower end of the lock cap is provided with an annular groove, the annular limiting surface is the lower side groove wall of the annular groove, and the connecting part is clamped in the annular groove.

The lower end of the lock cap is provided with an annular groove, when the annular protrusion shrinks inwards to form a connecting part, the annular groove can be clamped into the annular groove, and the lower side groove wall of the annular groove can be directly used as an annular limiting surface matched with the connecting part.

In the magnetic locking gate valve, as another technical solution, the side part of the lower end of the lock cap is provided with an annular lug, and the annular limiting surface is an upper side surface of the annular lug.

The side part of the lower end of the lock cap is provided with an annular lug, when the annular bulge shrinks inwards to form a connecting part, the annular lug can be buckled on the annular lug, and the upper side surface of the annular lug can be directly used as an annular limiting surface matched with the connecting part.

In the magnetic locking gate valve, the upper side of the valve cap is provided with an annular slot, the annular protrusion and the annular convex shoulder are formed when the annular slot is processed on the valve cap, and the lower end of the locking cap is inserted into the annular slot.

The annular slot is directly processed on the valve cap, so that the annular convex shoulder and the annular bulge are naturally generated on the valve cap due to the existence of the annular slot, and the lower end of the locking cap is naturally positioned on the inner side of the annular bulge after being inserted into the annular slot.

In the magnetic latching gate valve, the annular protrusion is in the shape of an annular thin plate.

The annular thin plate shape enables the annular bulge to contract inwards to generate deformation when being pressed.

Compared with the prior art, the magnetic locking valve has the advantages that the annular protrusion is inwards shrunk to form the connecting part to be matched with the annular limiting surface on the outer side of the lower end of the locking cap, so that the valve cap and the locking cap can be axially fixed together along the valve rod under the condition of not drilling pins, the possibility that the valve is damaged from the outside is avoided, and the safety is improved. Moreover, the structure does not need other connecting parts, and the lock cap and the valve cap are produced by machining, so that the structure is more convenient to manufacture and lower in cost.

Drawings

Fig. 1 is a longitudinal sectional view of a first embodiment of the magnetic lock valve.

Fig. 2 is a sectional view at a in fig. 1.

Fig. 3 is a transverse sectional view of the coupling portion and the coupling hole in the magnetic lock valve.

In the figure, 1, a valve body; 2. a bonnet; 2a, a first hole; 2b, an annular shoulder; 2c, an annular bulge; 2c1, a connecting part; 2d, an annular slot; 3. a lock cap; 3a, a second hole; 3b, a connecting hole; 3c, an annular limiting surface; 3d, an annular groove; 4. a magnetic column; 5. a spring; 6. a valve stem; 6a, a connecting part; 7. a gate plate.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1 and 3, the magnetic lock valve includes a valve body 1, a bonnet 2 fixed on the upper end of the valve body 1, and a lock cap 3 connected to the bonnet 2, a magnetic locking mechanism is provided between the bonnet 2 and the lock cap 3, the magnetic locking mechanism includes a first hole 2a provided on the bonnet 2, a second hole 3a provided on the lock cap 3, and a magnetic column 4 and a spring 5 both provided in the first hole 2a, the central lines of the first hole 2a and the second hole 3a are both arranged along the vertical direction, when the first hole 2a is opposite to the second hole 3a, the upper end of the magnetic column 4 is inserted into the second hole 3a under the elastic force of the spring 5, so that the bonnet 2 and the lock cap 3 are fixed along the circumferential direction. A valve rod 6 penetrates through the valve body 1, a flashboard 7 is connected to the lower end of the valve rod 6 in a threaded mode, the flashboard 7 is fixed with the valve body 1 in the circumferential direction, the upper end of the valve rod 6 penetrates through the valve cap 2 and is inserted into the lock cap 3, a non-circular connecting hole 3b is formed in the lock cap 3, the connecting portion 6a matched with the connecting hole 3b in shape is formed in the upper end of the valve rod 6, and the connecting portion is preferably a flat square hole.

Further, as shown in fig. 1 and 2, the valve cap 2 has an annular shoulder 2b on the outside, an annular protrusion 2c is fixedly connected to the upper side of the annular shoulder 2b, the lower end of the locking cap 3 is located inside the annular protrusion 2c, the side part of the lower end of the locking cap 3 has an annular limiting surface 3c arranged upward, and the upper end of the annular protrusion 2c has a connecting part 2c1 which is shrunk inward and can abut against the annular limiting surface 3c to prevent the locking cap 3 and the valve cap 2 from being disconnected in the axial direction of the valve rod 6. In this embodiment, the upper side of the bonnet 2 is provided with an annular slot 2d, an annular protrusion 2c and an annular shoulder 2b are formed when the annular slot 2d is processed on the bonnet 2, the lower end of the locking cap 3 is inserted into the annular slot 2d, and the annular protrusion 2c is in an annular thin plate shape. The side part of the lower end of the lock cap 3 is provided with an annular groove 3d, the annular limiting surface 3c is the lower side groove wall of the annular groove 3d, and the connecting part 2c1 is clamped in the annular groove 3 d.

In production, the locking cap 3 is attached to the bonnet 2, specifically, the lower end of the locking cap 3 is inserted into the annular insertion groove 2d formed between the annular protrusion 2c and the outer wall of the bonnet 2, and the coupling portion 6a at the upper end of the valve stem 6 is inserted into the coupling hole 3b in the locking cap 3 so that the two are fixed in the circumferential direction. Then, the upper end of the annular protrusion 2c is inwardly shrunk at the position corresponding to the position of the annular groove 3d on the outer side of the lower end of the lock cap 3, so that a connecting part 2c1 clamped into the annular groove 3d is formed on the annular protrusion 2c, and the lower side groove wall of the annular groove 3d is used as an annular limiting surface 3c matched with the connecting part 2c1, so that the lock cap 3 and the bonnet 2 can be fixed together along the axial direction of the valve rod 6, and the relative rotation between the lock cap 3 and the bonnet 2 after the magnetic locking mechanism is unlocked cannot be influenced. Through adopting above-mentioned structure for this magnetism lock valve need not the rethread from the outside mode of making the pin to be connected valve cap 2 with locking cap 3, has stopped the valve from the destroyed possibility in the outside from this, has improved the security.

Example two

The structure and principle of this embodiment are basically the same as those of the first embodiment, except that: in the present embodiment, the lower end side of the locking cap 3 has an annular lug, and the annular limiting surface 3c is the upper side surface of the annular lug.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. Magnetic locking valve, including valve body (1), be fixed in valve cap (2) of valve body (1) upper end and connect lock cap (3) on valve cap (2), valve cap (2) and lock cap (3) between be equipped with and enable both along the fixed magnetism locking mechanical system of circumference, wear to be equipped with in valve body (1) valve rod (6) and valve rod (6) upper end and pass valve cap (2) and insert in lock cap (3), its characterized in that, valve cap (2) outside have annular convex shoulder (2b), the side has linked firmly annular arch (2c) on annular convex shoulder (2b), lock cap (3) lower extreme is located the inboard of annular arch (2c), lock cap (3) lower extreme lateral part has spacing face of annular up (3c), annular arch (2c) upper end has inward contraction to form and to lean on can support and lean on spacing face of annular (3c) to prevent lock cap (3) and valve cap (2) along connecting portion (2c1) that valve rod (6) axial was thrown off, the locking cap (3) is provided with a non-circular coupling hole (3b) therein, and the upper end of the valve rod (6) is provided with a coupling part (6a) matched with the coupling hole (3b) in shape.

2. A magnetic locking valve according to claim 1, characterized in that the locking cap (3) is provided with an annular groove (3d) at the lower end side, the annular limiting surface (3c) is a lower side groove wall of the annular groove (3d), and the connecting portion (2c1) is clamped in the annular groove (3 d).

3. A magnetic lock valve according to claim 1, characterized in that the lock cap (3) has an annular lug at the lower end side, and the annular limiting surface (3c) is the upper side of the annular lug.

4. A magnetic lock valve according to claim 2 or 3, characterized in that the bonnet (2) is provided at its upper side with an annular slot (2d), the annular protrusion (2c) and the annular shoulder (2b) are formed by machining the annular slot (2d) in the bonnet (2), and the lower end of the locking cap (3) is inserted into the annular slot (2 d).

5. A magnetic lock valve according to claim 4, characterized in that the annular protrusion (2c) is in the form of an annular thin plate.