Platform ball valve with chain lock catch

Abstract

The utility model relates to the technical field of platform ball valves, in particular to a platform ball valve with a chain lock catch, which comprises a valve body, a valve cover is mounted at the top end of the valve body, a first O-shaped ring is mounted at the joint of the valve body and the valve cover, a valve seat is mounted in the valve body, a ball body is mounted in the valve seat, and a chain lock catch is mounted in the ball body. A valve rod penetrating through the valve body and the top end of the valve deck is installed at the top end of the ball body, a thrust washer is installed on the outer wall of the valve rod, a sealing washer is installed at the top end of the valve deck, a limiting plate is installed at the top end of the valve rod, and a handle is installed at the top end of the outer wall of the valve rod. Firstly, the ball valve is opened by rotating the handle, meanwhile, the plug pin is inserted into the unlocking lock hole, the ball valve can be conveniently locked when being opened, and therefore the situation that the ball valve is closed due to external force touch, and consequently the use effect of the ball valve is affected is avoided, and meanwhile the chain ring and the lock ring are made of steel wires, so that the use effect of the ball valve is improved. Therefore, the firmness degree of the chain ring and the locking ring is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to platform ball valve technical field, especially a kind of platform ball valve with chain lock. BACKGROUND

[0002] Ball valve is a kind of valve that controls fluid on-off by rotating ball, its working principle is that ball is rotated around ball valve axis by valve stem, when ball is rotated 90 degrees, the opening or closing of valve can be realized, platform ball valve refers to the valve with a spherical section valve body in the center, the flow and flow direction of fluid can be controlled by rotating ball when valve is running, platform ball valve has the characteristics of good sealing, easy operation, long service life, and is widely used in industrial field.

[0003] Platform ball valve is suitable for various strong acid strong base, high temperature and high pressure and low temperature and low pressure medium. It has good sealing performance, long service life, and can withstand large pressure, most platform ball valves on the market cannot be locked when opening and closing, so that platform ball valve is misoperated due to external force, thereby affecting the use effect of platform ball valve, therefore a platform ball valve with chain lock is needed to meet people's use demand. SUMMARY

[0004] The purpose of this section is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above or existing technology, most platform ball valves on the market cannot be locked when opening and closing, so that platform ball valve is misoperated due to external force, thereby affecting the use effect of platform ball valve, therefore a platform ball valve with chain lock is needed to meet people's use demand, therefore the utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a platform ball valve with chain lock.

[0007] To solve the above technical problems, the utility model provides the following technical scheme: a kind of ball valve with chain lock catch platform, including valve body, the top of valve body is equipped with valve cover, the connecting place of valve body and valve cover is equipped with first O ring, the inside of valve body is equipped with valve seat, and the inside of valve seat is equipped with sphere, the top of sphere is equipped with valve stem penetrating valve body and valve cover top, the outer wall of valve stem is equipped with thrust washer, the top of valve cover is equipped with sealing washer, the top of valve stem is equipped with limit stop, the top of valve stem outer wall is equipped with handle, the top of valve stem outer wall is equipped with bolt, the top of valve stem is equipped with oil cup, the top of limit stop is equipped with lock ring, the top of limit stop is equipped with spring cylindrical pin.

[0008] As a preferred scheme of the utility model of a kind of ball valve with chain lock catch platform, wherein: the connecting place of valve stem and valve body is equipped with second O ring.

[0009] As a preferred scheme of the utility model of a kind of ball valve with chain lock catch platform, wherein: the outer wall of valve stem is equipped with spring retainer for shaft, and spring retainer for shaft is installed at the intermediate position of handle and limit stop.

[0010] As a preferred scheme of the utility model of a kind of ball valve with chain lock catch platform, wherein: the top of valve body and bolt is equipped with opening lock hole and closing lock hole respectively, and the inside of opening lock hole is provided with bolt.

[0011] As a preferred scheme of the utility model of a kind of ball valve with chain lock catch platform, wherein: the end of lock ring away from limit stop is equipped with chain ring, and the end of chain ring away from lock ring is fixedly connected with bolt.

[0012] As a preferred scheme of the utility model of a kind of ball valve with chain lock catch platform, wherein: the material of chain ring is steel wire, and the diameter of chain ring is 1.5mm.

[0013] As a preferred scheme of the utility model of a kind of ball valve with chain lock catch platform, wherein: the material of chain ring is steel wire, and the diameter of chain ring is 1mm.

[0014] The ball valve with chain lock catch platform of the utility model has the following beneficial effects:

[0015] 1. The utility model discloses a ball valve is provided with the lock hole of opening and closing, and the lock hole of opening and closing is provided with the lock hole of opening and closing respectively through the design of the lock and the chain ring, and the lock is respectively matched with the lock hole of opening and closing and the lock hole of closing, when the ball valve is closed, the lock is inserted with the lock hole of closing, so that the ball valve is locked when closing, thereby avoiding the ball valve opening because of external force touch, and the lock is extracted, and the ball valve is opened through the rotation handle, and the lock is inserted with the lock hole of opening, and the ball valve is locked when opening, thereby avoiding the ball valve closing because of external force touch, and the use effect of the ball valve is influenced, and the chain ring and the lock ring are made of steel wire, so that the firmness of the chain ring and the lock ring is higher. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to make the technical scheme of the embodiments of the utility model clearer, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0017] Fig. 1 It is a kind of main view section structure schematic diagram of ball valve with chain lock buckle platform;

[0018] Fig. 2 It is a kind of top view structure schematic diagram of ball valve with chain lock buckle platform;

[0019] Fig. 3 It is a kind of lock structure schematic diagram of ball valve with chain lock buckle platform;

[0020] Fig. 4 It is a kind of chain ring structure schematic diagram of ball valve with chain lock buckle platform;

[0021] Fig. 5 It is a kind of limiting plate top view structure schematic diagram of ball valve with chain lock buckle platform.

[0022] In the drawings, the component list represented by each sign is as follows:

[0023] 1, valve body;2, valve cover;3, first O ring;4, valve seat;5, ball;6, valve stem;7, thrust washer;8, second O ring;9, sealing washer;10, limiting plate;11, shaft spring retainer;12, handle;13, oil cup;14, lock;15, bolt;16, chain ring;17, lock ring;18, spring cylindrical pin;19, opening lock hole;20, closing lock hole. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the following will make detailed description to the specific implementation of the utility model by combining with the drawings of the specification.

[0025] In the following description, a lot of specific details are set forth in order to facilitate a thorough understanding of the present application, but the present application can be practiced in other ways that are different from those described herein, and it can be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0026] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent of or mutually exclusive with other embodiments.

[0027] Embodiment one: refer to Figs. 1-5 , the first embodiment of the present application, the embodiment provides a kind of platform ball valve with chain lock, can realize most platform ball valves on current market, when being opened and closed, it cannot be locked, thereby causing platform ball valve, misoperation occurs due to external force factor, thereby affecting the use effect of platform ball valve, therefore needs a kind of platform ball valve with chain lock to meet the use demand of people, including valve body 1, the top of valve body 1 is equipped with valve cover 2, the connecting portion of valve body 1 and valve cover 2 is equipped with first O ring 3, the inside of valve body 1 is equipped with valve seat 4, and the inside of valve seat 4 is equipped with ball 5, the top of ball 5 is equipped with valve stem 6 penetrating the top of valve body 1 and valve cover 2, the outer wall of valve stem 6 is equipped with thrust washer 7, the top of valve cover 2 is equipped with sealing washer 9, the top of valve stem 6 is equipped with limit plate 10, the top of the outer wall of valve stem 6 is equipped with handle 12, the top of the outer wall of valve stem 6 is equipped with bolt 15, the top of valve stem 6 is equipped with oil cup 13, the top of limit plate 10 is equipped with lock ring 17, the top of limit plate 10 is equipped with spring cylindrical pin 18, the connecting portion of valve stem 6 and valve body 1 is equipped with second O ring 8;

[0028] The outer wall of valve stem 6 is equipped with spring retainer 11 for shaft, and spring retainer 11 for shaft is installed at the intermediate position of handle 12 and limit plate 10;

[0029] The top of valve body 1 and bolt 15 is respectively provided with opening lock hole 19 and closing lock hole 20, and the inside of opening lock hole 19 is provided with latch 14;

[0030] The end of lock ring 17 away from limit plate 10 is equipped with chain ring 16, and the end of chain ring 16 away from lock ring 17 is fixedly connected with latch 14, the material of chain ring 16 is steel wire, the diameter of chain ring 16 is 1.5mm, the material of lock ring 17 is steel wire, and the diameter of lock ring 17 is 1mm.

[0031] Specific working principle is, when need to open and close the platform ball valve, first through the design of the latch 14 and the chain ring 16, through the latch 14 and the opening lock hole 19 and the closing lock hole 20 respectively, when the ball valve is closed, through the latch 14 and the closing lock hole 20, so that the ball valve is locked when closing, so as to avoid the ball valve opening due to external force touch, at the same time, by pulling out the latch 14, and by rotating the handle 12 to open the ball valve, at the same time, by inserting the latch 14 and the opening lock hole 19, it is convenient to lock the ball valve when opening, so as to avoid the ball valve closing due to external force touch, so as to affect the use effect of the ball valve, at the same time, the material of the chain ring 16 and the lock ring 17 is steel wire, so that the chain ring 16 and the lock ring 17 are more firm.

[0032] The above description of disclosed embodiments enables those skilled in the art to make or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the present application. Thus, the present application is not to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A platform ball valve with chain locking mechanism, characterized in that: Including valve body (1), A valve cover (2) is installed at the top of the valve body (1). A first O-ring (3) is installed at the connection between the valve body (1) and the valve cover (2). A valve seat (4) is installed inside the valve body (1). A ball (5) is installed inside the valve seat (4). A valve stem (6) is installed at the top of the ball (5) that penetrates the top of the valve body (1) and the top of the valve cover (2). A thrust washer (7) is installed on the outer wall of the valve stem (6). A sealing gasket (9) is installed at the top of the valve cover (2). A limit plate (10) is installed at the top of the valve stem (6). A handle (12) is installed at the top of the outer wall of the valve stem (6). A bolt (15) is installed at the top of the outer wall of the valve stem (6). An oil cup (13) is installed at the top of the valve stem (6). A locking ring (17) is installed at the top of the limit plate (10). A spring cylindrical pin (18) is installed at the top of the limit plate (10).

2. The platform ball valve with chain locking as described in claim 1, characterized in that: A second O-ring (8) is installed at the connection between the valve stem (6) and the valve body (1).

3. A platform ball valve with chain locking as described in claim 1, characterized in that: The outer wall of the valve stem (6) is fitted with a shaft spring retainer (11), and the shaft spring retainer (11) is installed at the middle position between the handle (12) and the limiting plate (10).

4. A platform ball valve with chain locking as described in claim 1, characterized in that: The valve body (1) and the bolt (15) are respectively provided with an opening lock hole (19) and a closing lock hole (20), and a pin (14) is provided inside the opening lock hole (19).

5. A platform ball valve with chain locking as described in claim 1, characterized in that: The locking ring (17) is equipped with a chain link (16) at the end away from the limiting plate (10), and the end of the chain link (16) away from the locking ring (17) is fixedly connected to the pin (14).

6. A platform ball valve with chain locking as described in claim 5, characterized in that: The chain link (16) is made of steel wire and has a diameter of 1.5 mm.

7. A platform ball valve with chain locking as described in claim 1, characterized in that: The locking ring (17) is made of steel wire and has a diameter of 1 mm.

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