Straight-through type sliding flow control valve

Abstract

The utility model relates to the technical field of valves, in particular to a straight-through type sliding flow control valve which comprises a valve body, a channel is formed in the middle of the valve body, a partition plate fixedly connected with the valve body is arranged in the channel, and a plurality of water inlet holes communicated with the channel are formed in the side wall, above the partition plate, of the valve body. A plurality of water outlet holes communicated with the channel are formed in the side wall of the valve body below the partition plate, a sliding sleeve and a baffle ring are arranged outside the valve body in a sliding mode, the baffle ring is fixedly arranged on the upper portion of the sliding sleeve, a water passing cavity matched with the water inlet holes and the water outlet holes is formed in the inner side of the sliding sleeve, and a sealing device matched with the sliding sleeve and the baffle ring is arranged outside the valve body. The valve is opened and closed in the mode that the water inlet hole, the water outlet hole and the water passing cavity are opened and closed in a staggered mode, the structure is simple, the number of parts is small, use safety and reliability are high, and the risk of valve leakage is reduced when the valve is used in cooperation with a sealing device. And the design without a hand wheel is adopted, so that angle-free installation can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a direct-through sliding flow control valve. Background Art

[0002] A valve is a device used to control the direction, pressure, and flow rate of fluids in a fluid system. A valve is a device that enables the medium (liquid, gas, powder) in a piping and equipment to flow or stop and can control its flow rate. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil products, liquid metals, and radioactive media. A valve is a control component in a pipeline fluid transportation system. It is used to change the cross-sectional area of the passage and the flow direction of the medium, and has functions such as guiding, shutting off, throttling, check valve, shunting, or overflow pressure relief.

[0003] The valves of the prior art mainly consist of three parts: a valve body, an opening and closing component, and a valve cover. The valve seat is on the valve body, and the valve stem drives the opening and closing member (valve flap) of the valve to move up and down. The separation and combination of the valve flap and the valve seat enable the valve to open and close. The opening and closing mechanism consists of a valve flap (also called a valve disc, valve core), a valve stem, and a driving device (handwheel). The valve stem is screwed onto the valve cover with a trapezoidal thread. The handwheel and the valve flap are fixed at the upper and lower ends of the valve stem. By turning the handwheel, the valve stem can rise or fall to drive the valve flap to approach or leave the valve seat to close and open. The valve flap and the valve seat are closely matched, and the valve flap is tightly pressed on the valve seat by the pressure of the valve stem, so that the valve is in a completely closed state.

[0004] The existing valves have more component interfaces and a greater risk of leakage. And the installation angle of the handwheel needs to be determined before installation. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a direct-through sliding flow control valve.

[0006] A direct-through sliding flow control valve includes a valve body. A channel is opened in the middle of the valve body. A partition fixed to the valve body is arranged in the channel. A plurality of water inlet holes communicating with the channel are opened on the side wall of the valve body above the partition. A plurality of water outlet holes communicating with the channel are opened on the side wall of the valve body below the partition. A sliding sleeve and a retaining ring are slidably arranged outside the valve body. The retaining ring is fixedly arranged on the upper part of the sliding sleeve. A water passing cavity matching with the water inlet holes and the water outlet holes is opened inside the sliding sleeve. A sealing device matching with the sliding sleeve and the retaining ring is arranged outside the valve body.

[0007] Further, the sealing device includes a first sealing ring, a second sealing ring and a third sealing ring. The first sealing ring is arranged outside the valve body above the water inlet hole. The first sealing ring is in sealing cooperation with the retaining ring and the inner wall of the sliding sleeve above the water passing cavity. The second sealing ring is arranged outside the valve body between the water inlet hole and the water outlet hole. The second sealing ring is in sealing cooperation with the inner wall of the sliding sleeve above the water passing cavity. The third sealing ring is arranged outside the valve body below the water outlet hole. The third sealing ring is in sealing cooperation with the inner wall of the sliding sleeve below the water passing cavity.

[0008] Further, a limiting ring is arranged outside the valve body below the third sealing ring. The limiting ring is in contact and cooperation with the bottom of the sliding sleeve.

[0009] Further, the valve body and the partition are integrally formed, and the sliding sleeve and the retaining ring are integrally formed.

[0010] In summary, the present utility model has the following beneficial effects:

[0011] The present utility model uses the method of staggered opening and closing of the water inlet hole, the water outlet hole and the water passing cavity for valve opening and closing. The structure is simple, the number of components is small, and the use safety and reliability are relatively high. Used in conjunction with the sealing device, the risk of valve leakage is reduced. And the design without a handwheel can achieve installation without an angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The following further describes the present utility model in detail with reference to the drawings and specific embodiments:

[0013] Figure 1 is the front view of a straight-through sliding flow control valve in the open state of the present utility model;

[0014] Figure 2 is the front sectional view of a straight-through sliding flow control valve in the open state of the present utility model;

[0015] Figure 3 is the front view of a straight-through sliding flow control valve in the closed state of the present utility model;

[0016] Figure 4 is the front sectional view of a straight-through sliding flow control valve in the closed state of the present utility model.

[0017] In the figure: 1 valve body, 2 channel, 3 partition, 4 water inlet hole, 5 water outlet hole, 6 sliding sleeve, 7 retaining ring, 8 water passing cavity, 9 first sealing ring, 10 second sealing ring, 11 third sealing ring, 12 limiting ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] The following will further illustrate the present utility model in conjunction with the attached Figures 1-4 :

[0020] A direct-through sliding flow control valve includes a valve body 1. A channel 2 is provided in the middle of the valve body 1. A partition 3 fixedly connected to the valve body 1 is arranged in the channel 2. The valve body 1 and the partition 3 are integrally formed. A plurality of water inlet holes 4 communicating with the channel 2 are provided on the side wall of the valve body 1 above the partition 3. A plurality of water outlet holes 5 communicating with the channel 2 are provided on the side wall of the valve body 1 below the partition 3. A sliding sleeve 6 and a retaining ring 7 are slidably arranged outside the valve body 1. The sliding sleeve 6 and the retaining ring 7 are integrally formed. The retaining ring 7 is fixedly arranged on the upper part of the sliding sleeve 6. A water passing cavity 8 matching with the water inlet holes 4 and the water outlet holes 5 is provided inside the sliding sleeve 6. A limiting ring 12 is arranged outside the valve body 1 below the sealing ring three 11. The limiting ring 12 is in contact and cooperation with the bottom of the sliding sleeve 6. A sealing device matching with the sliding sleeve 6 and the retaining ring 7 is arranged outside the valve body 1. The sealing device includes a sealing ring one 9, a sealing ring two 10, and a sealing ring three 11. The sealing ring one 9 is arranged outside the valve body 1 above the water inlet hole 4. The sealing ring one 9 is in sealing cooperation with the retaining ring 7 and the inner wall of the sliding sleeve 6 above the water passing cavity 8. The sealing ring two 10 is arranged outside the valve body 1 between the water inlet hole 4 and the water outlet hole 5. The sealing ring two 10 is in sealing cooperation with the inner wall of the sliding sleeve 6 above the water passing cavity 8. The sealing ring three 11 is arranged outside the valve body 1 below the water outlet hole 5. The sealing ring three 11 is in sealing cooperation with the inner wall of the sliding sleeve 6 below the water passing cavity 8.

[0021] In this embodiment, the upper end and the lower end of the valve body 1 are respectively the inlet end and the outlet end. Before use, the upper end and the lower end of the valve body 1 need to be communicated with the pipeline. By sliding the positions of the sliding sleeve 6 and the retaining ring 7 on the valve body 1, the opening and closing of the valve are realized. The sealing device is used to cooperate with the sliding sleeve 6 and the retaining ring 7 to achieve sealing when the valve is in use. The limiting ring 12 is used to control the limit when the valve is in the closed state.

[0022] Figure 1 and Figure 2It is the open state of a through-type sliding flow control valve. At this time, the sliding sleeve 6 and the retaining ring 7 slide upward, the water inlet hole 4 and the water outlet hole 5 are both inside the water passing cavity 8, and the water inlet hole 4, the water passing cavity 8 and the water outlet hole 5 are in a communicating state. The medium enters the channel 2 from the pipeline at the upper end of the valve body 1, is blocked by the partition plate 3 and then enters the water passing cavity 8 from the water inlet hole 4 above the partition plate 3, and then enters the channel 2 below the partition plate 3 from the water outlet hole 5 and enters the pipeline at the lower end of the valve body 1.

[0023] When a through-type sliding flow control valve is in the open state, the second sealing ring 10 is located in the water passing cavity 8 and does not contact the sliding sleeve 6 and the retaining ring 7. The first sealing ring 9 above the water inlet hole 4 is in sealing cooperation with the inner wall of the sliding sleeve 6 above the water passing cavity 8, and the third sealing ring 11 below the water outlet hole 5 is in sealing cooperation with the inner wall of the sliding sleeve 6 below the water passing cavity 8 to achieve the sealing of the valve in the open state.

[0024] Figure 3 and Figure 4 It is the closed state of a through-type sliding flow control valve. At this time, the sliding sleeve 6 and the retaining ring 7 slide upward so that the bottom of the sliding sleeve 6 contacts the limit ring 12, the water outlet hole 5 is inside the water passing cavity 8, the water inlet hole 4 is sealed, and the water inlet hole 4, the water passing cavity 8 and the water outlet hole 5 are no longer in a communicating state. The medium in the channel above the partition plate 3 cannot pass through the water inlet hole 4 and enter the water passing cavity 8.

[0025] When a through-type sliding flow control valve is in the closed state, the third sealing ring 11 is located in the water passing cavity 8 and does not contact the sliding sleeve 6 and the retaining ring 7. The first sealing ring 9 above the water inlet hole 4 is in sealing cooperation with the retaining ring 7, and the second sealing ring 10 is in sealing cooperation with the inner wall of the sliding sleeve 6 above the water passing cavity 8 to achieve the sealing of the valve in the open state.

[0026] In summary, the present utility model is not limited to the above specific embodiments. Those skilled in the art can make several changes and modifications on the premise of not departing from the spirit and scope of the present utility model. The protection scope of the present utility model shall be subject to the claims of the present utility model.

[0027] In the description of this patent, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this patent.

[0028] In the description of this patent, it should be noted that, unless otherwise clearly stipulated and defined, the terms "installation", "connection", "linkage", and "setting" shall be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

Claims

1. A straight-through sliding flow control valve, characterized in that: The invention comprises a valve body (1), wherein a channel (2) is provided in the middle of the valve body (1), a partition (3) fixedly connected to the valve body (1) is provided in the channel (2), a plurality of water inlet holes (4) connected to the channel (2) are provided on the side wall of the valve body (1) above the partition (3), a plurality of water outlet holes (5) connected to the channel (2) are provided on the side wall of the valve body (1) below the partition (3), a sliding sleeve (6) and a retaining ring (7) are slidably provided on the outside of the valve body (1), the retaining ring (7) is fixedly provided on the upper part of the sliding sleeve (6), a water passage cavity (8) matched with the water inlet hole (4) and the water outlet hole (5) is provided on the inner side of the sliding sleeve (6), and a sealing device matched with the sliding sleeve (6) and the retaining ring (7) is provided on the outside of the valve body (1).

2. A straight-through sliding flow control valve as claimed in claim 1, characterized in that: The sealing device comprises a sealing ring 1 (9), a sealing ring 2 (10) and a sealing ring 3 (11); the sealing ring 1 (9) is arranged on the outside of the valve body (1) above the water inlet hole (4); the sealing ring 1 (9) is in sealing cooperation with the retaining ring (7) and the inner wall of the sliding sleeve (6) above the water passage cavity (8); the sealing ring 2 (10) is arranged on the outside of the valve body (1) between the water inlet hole (4) and the water outlet hole (5); the sealing ring 2 (10) is in sealing cooperation with the inner wall of the sliding sleeve (6) above the water passage cavity (8); the sealing ring 3 (11) is arranged on the outside of the valve body (1) below the water outlet hole (5); the sealing ring 3 (11) is in sealing cooperation with the inner wall of the sliding sleeve (6) below the water passage cavity (8).

3. A straight-through sliding flow control valve as claimed in claim 2, characterized in that: A limit ring (12) is provided on the outside of the valve body (1) below the sealing ring three (11), and the limit ring (12) is in contact with the bottom of the sliding sleeve (6).

4. A straight-through sliding flow control valve as claimed in claim 1, characterized in that: The valve body (1) and the partition plate (3) are integrally formed, and the sliding sleeve (6) and the retaining ring (7) are integrally formed.

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