CN207333777U - A kind of new small-caliber forged steel valve - Google Patents

Abstract

The utility model discloses a novel small-diameter forged steel valve, which comprises a valve body. One side of the valve body is provided with a water inlet channel and the other side is provided with a water outlet channel. One side of the water inlet channel and the water outlet channel are All are provided with flanges, and the flanges are disassembled and connected with the valve body. One end of the water inlet flow channel and the water outlet flow channel is provided with an annular valve seat, and the annular valve seat is fixedly connected with the valve body. The utility model is equipped with ladder-shaped installation holes matched with the flange at both ends of the valve body, not only can install the flange, but also can be installed with pipelines, easy to use, stronger in practicability, good in sealing effect, and the section of the valve core is set in trapezoidal shape , the valve core cooperates with the annular valve seat, which is beneficial to reduce the resistance when the valve core moves down, and the speed of moving down is fast, the valve closes quickly, and the sealing performance is good. There is a convex plate at the bottom of the cock, and the convex plate There is a lock washer on the top, which is conducive to the handle mechanism to drive the valve stem to rotate easily, and prevent the handle mechanism from slipping for a long time.

Description

A new type of small diameter forged steel valve

technical field

The utility model relates to the field of forged steel valves, in particular to a novel small-diameter forged steel valve.

Background technique

The valve body is a commonly used control device. It is mainly composed of a valve body, a valve stem, a valve core and a sealing packing. It mainly controls the valve core through the valve stem to achieve on-off control of the valve body. The valve body is generally equipped with an outlet flow channel, an inlet flow channel and a control flow channel. The length of the outlet flow channel and the inlet flow channel is generally short. When installing, it is connected to the pipeline through threads or plugs. Although it can The connection with the pipeline is completed, but in actual use, the connection between the valve body and the pipeline is not tightly sealed and is prone to leakage.

Therefore, it is necessary to invent a new type of small-diameter forged steel valve to solve the above problems.

Utility model content

The purpose of this utility model is to provide a new type of small-diameter forged steel valve to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a new type of small-diameter forged steel valve, including a valve body, one side of the valve body is provided with a water inlet channel and the other side is provided with a water outlet channel, the inlet One side of the water flow channel and the water outlet flow channel are provided with flanges, and the flanges are disassembled and connected with the valve body. Fixed connection, the top of the valve body is provided with a valve cover, the valve body and the valve cover are provided with a gasket, the top of the valve cover is provided with a valve stem sleeve, and the valve stem sleeve is provided with a valve stem inside. The bottom end of the valve stem is provided with a protrusion, the top of the protrusion is provided with a limit sleeve, the limit sleeve is fixedly connected with the valve body, the bottom of the protrusion is provided with a valve core, and the valve stem sleeve is connected to the valve stem. There is packing between them, the top of the packing is provided with a packing gland, the top of the packing gland is provided with a packing pressure plate, the top of the valve stem is provided with a threaded bonnet, and the top of the threaded bonnet is provided with a handle mechanism. A cock is arranged inside the threaded bonnet, and the handle mechanism is fixedly connected with the threaded bonnet through the cock.

Preferably, an O-ring is provided between the flange and the valve body, and the section of the flange is stepped.

Preferably, the valve stem sleeve is fixedly connected to the valve body by a stud bolt, and the valve stem sleeve is fixedly connected to the packing pressure plate by a stud bolt.

Preferably, the inner diameter of the limiting sleeve is the same as the diameter of the valve stem, and the diameter of the protrusion is larger than the inner diameter of the limiting sleeve.

Preferably, the cross-section of the valve core is trapezoidal, and the valve core matches the annular valve seat.

Preferably, both the packing gland and the packing pressing plate are sleeved on the outside of the valve stem.

Preferably, a convex plate is provided at the bottom of the cock, and a locking washer is provided at the top of the convex plate.

The technical effects and advantages of the utility model: 1. The two ends of the valve body are equipped with stepped installation holes that cooperate with the flange, not only the flange can be installed, but also the pipeline can be installed, which is convenient to use, more practical, and has better sealing effect. Good; 2. The cross section of the valve core is set to be trapezoidal, and the valve core is matched with the annular valve seat, which is beneficial to reduce the resistance when the valve core moves downward, and the downward movement speed is fast, the valve closes quickly, and the sealing performance is good; 3. A convex plate is provided at the bottom of the cock, and a locking washer is provided on the top of the convex plate, which is beneficial to easily drive the valve stem when the handle mechanism drives the valve stem to rotate, and prevents the handle mechanism from using the slip wire for a long time; 4. Packing, packing gland And the setting of the packing pressure plate makes the sealing better.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the utility model.

In the figure: 1 valve body, 2 water inlet channel, 3 water outlet channel, 4 flange, 5 valve cover, 6 gasket, 7 valve stem sleeve, 8 valve stem, 9 bump, 10 limit sleeve, 11 valve core , 12 packing, 13 packing gland, 14 packing plate, 15 threaded bonnet, 16 handle mechanism, 17 cock, 18 ring seat, 19 O-ring, 20 raised plate, 21 lock washer.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

The utility model provides a new type of small-diameter forged steel valve as shown in Figure 1, comprising a valve body 1, one side of the valve body 1 is provided with a water inlet channel 2 and the other side is provided with a water outlet channel 3, so One side of the water inlet channel 2 and the water outlet channel 3 is provided with a flange 4, and the flange 4 is disassembled and connected with the valve body 1, and one end of the water inlet channel 2 and the water outlet channel 3 is provided with an annular valve seat 18. The annular valve seat 18 is fixedly connected with the valve body 1, a valve cover 5 is provided on the top of the valve body 1, a gasket 6 is provided between the valve body 1 and the valve cover 5, and the top of the valve cover 5 A valve stem cover 7 is provided, a valve stem 8 is arranged inside the valve stem cover 7, a bump 9 is provided at the bottom end of the valve stem 8, and a limit sleeve 10 is provided on the top of the bump 9, and the limit sleeve 10 is fixedly connected with the valve body 1, a valve core 11 is provided at the bottom of the bump 9, a packing 12 is provided between the valve stem sleeve 7 and the valve stem 8, and a packing gland 13 is provided on the top of the packing 12, so The top of the packing gland 13 is provided with a packing pressure plate 14, the top of the valve stem 8 is provided with a threaded bonnet 15, the top of the threaded bonnet 15 is provided with a handle mechanism 16, and the inside of the threaded bonnet 15 is provided with a cock 17, The handle mechanism 16 is fixedly connected to the threaded valve cover 15 through a cock 17 .

An O-ring 19 is provided between the flange 4 and the valve body 1, and the cross section of the flange 4 is set in a stepped shape, which is conducive to a good sealing effect. The valve stem sleeve 7 and the valve body 1 are fixed by stud bolts connection, the valve stem cover 7 is fixedly connected with the packing pressure plate 14 through stud bolts, which is conducive to stable connection, prolonging the service life, and good sealing performance. The inner diameter of the limit sleeve 10 is the same as that of the valve stem 8, and the protrusion The diameter of 9 is larger than the inner diameter of the limit sleeve 10, which is beneficial to limit the distance that the valve stem 8 can move upwards, and facilitates the rapid opening and closing of the valve stem 8. , it is beneficial to reduce the resistance when the valve core 11 moves downward, and the downward movement speed is fast, the valve closes quickly, and the sealing performance is good. Good performance, the bottom of the cock 17 is provided with a convex plate 20, and the top of the convex plate 20 is provided with a locking washer 21, which is conducive to the handle mechanism 16 driving the valve stem 8 to rotate, easily driving the valve stem 8, and preventing the handle mechanism 16 from being long. Time to use slippery wire.

The working principle of the utility model: when in use, by turning the handle mechanism 16, the handle mechanism 16 drives the cock 17 convex plate 20 to rotate, so that the threaded bonnet 15 and the valve stem 8 rotate and move downward, so that the valve core 11 moves downward and the annular valve The seat 18 cooperates to block the water inlet channel 2 and the water outlet channel 3, that is, the valve is closed. When the handle mechanism 16 is turned in the opposite direction, the handle mechanism 16 drives the valve stem 8 to move upward, and the valve core 11 is driven to move upward until The bump 9 moves up to contact with the limit sleeve 10, and is blocked by the limit sleeve 10, which facilitates the rapid downward movement of the valve stem 8 next time, avoiding too long a moving distance and failing to close the valve in time. The stepped installation hole matched with the flange 4 can not only install the flange 4, but also can install a pipeline, which is convenient to use and more practical, and the setting of the O-ring 19 makes the sealing effect good.

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model, All should be included within the protection scope of the present utility model.

Claims (7)

1. A new type of small-diameter forged steel valve, including a valve body (1), characterized in that: one side of the valve body (1) is provided with a water inlet channel (2) and the other side is provided with a water outlet channel (3) ), the water inlet channel (2) and the water outlet channel (3) are provided with a flange (4) on one side, and the flange (4) is disassembled and connected with the valve body (1), and the water inlet channel (2) and one end of the water outlet channel (3) are provided with an annular valve seat (18), the annular valve seat (18) is fixedly connected with the valve body (1), and the top of the valve body (1) is provided with a valve cover (5), a gasket (6) is provided between the valve body (1) and the valve cover (5), and a valve stem cover (7) is provided on the top of the valve cover (5), and the valve stem cover ( 7) There is a valve stem (8) inside, the bottom end of the valve stem (8) is provided with a bump (9), the top of the bump (9) is provided with a limit sleeve (10), and the limit sleeve ( 10) It is fixedly connected with the valve body (1), the valve core (11) is provided at the bottom of the protrusion (9), and the packing (12) is provided between the valve stem sleeve (7) and the valve stem (8), The top of the packing (12) is provided with a packing gland (13), the top of the packing gland (13) is provided with a packing pressure plate (14), and the top of the valve stem (8) is provided with a threaded bonnet (15), A handle mechanism (16) is provided on the top of the threaded bonnet (15), and a cock (17) is provided inside the threaded bonnet (15), and the handle mechanism (16) and the threaded bonnet (15) pass through the cock ( 17) Fixed connection. 2. A new type of small-diameter forged steel valve according to claim 1, characterized in that: an O-ring (19) is provided between the flange (4) and the valve body (1), and the flange (4) The cross-section is set as a ladder shape. 3. A new type of small-diameter forged steel valve according to claim 1, characterized in that: the valve stem sleeve (7) is fixedly connected to the valve body (1) by stud bolts, and the valve stem sleeve (7) ) and packing plate (14) are fixedly connected by stud bolts. 4. A new type of small-diameter forged steel valve according to claim 1, characterized in that: the inner diameter of the limiting sleeve (10) is the same as the diameter of the valve stem (8), and the diameter of the protrusion (9) is larger than the limit bit cover (10) inner diameter. 5. A new type of small-diameter forged steel valve according to claim 1, characterized in that: the section of the valve core (11) is trapezoidal, and the valve core (11) is matched with the annular valve seat (18) . 6. A new type of small-diameter forged steel valve according to claim 1, characterized in that: the packing gland (13) and the packing pressure plate (14) are both sleeved on the outside of the valve stem (8). 7. A new type of small-diameter forged steel valve according to claim 1, characterized in that: the bottom of the cock (17) is provided with a convex plate (20), and the top of the convex plate (20) is provided with a locking washer (twenty one).