A large flow sleeve valve

Abstract

The utility model discloses a big flow sleeve valve, including valve body, valve stem and valve ball, one side of valve body is equipped with the accommodating cavity of accommodating valve ball, and the two sides of accommodating cavity in valve body axial direction are equipped with first limit ring and second limit ring respectively, and valve ball is located in the accommodating cavity, and the inboard of first limit ring and second limit ring is equipped with first sealing washer respectively, and valve ball is limited through two first sealing washers on the two sides of valve body axial direction, and valve stem is installed on valve body, and valve stem is rotatably connected with valve body, and valve stem is fixedly connected with valve ball, and the side of valve ball towards valve stem is equipped with the hole of giving way, and the end of the side of valve stem and valve ball connection is located in the hole of giving way, and the size of accommodating cavity in the perpendicular direction with valve body axial direction is greater than the size of valve ball in the corresponding direction, and valve ball can move along the perpendicular valve body axial direction under the action of external force. The sleeve valve structure is simple, convenient to use, and the flow is big, and when installing the sleeve valve, can fine adjustment valve stem and the position of valve ball, and is convenient for installation.

Description

Technical Field

[0001] This utility model relates to the field of fluid control technology for water distributors, specifically to a high-flow-rate sleeve valve. Background Technology

[0002] In terminal water distribution systems such as underfloor heating and air conditioning, each branch of the manifold is typically connected to the main pipe via a sleeve valve, which controls the on / off state of each branch. As building area and radiation area increase, the flow rate per branch also increases, thus requiring an increase in the valve diameter to increase the flow rate.

[0003] Currently, valve bodies are generally manufactured using a hot-stamping process, which requires specific molds, and these molds are relatively expensive. If the flow rate of the valve needs to be increased, the diameter of the valve body needs to be increased, necessitating the use of new molds to manufacture a valve body with a larger diameter. Consequently, this increases the cost of manufacturing new molds, leading to an increase in the production cost of the valve.

[0004] Additionally, during the installation of the manifold, for aesthetic reasons, a recessed niche (commonly known as a "hole") is usually made for the manifold (including the valve sleeve). The purpose is simply to allow the entire assembly to be recessed into the wall (except for the handle). Sometimes, because the depth of the recessed niche cannot match the manifold, the handle needs to be moved outward a small distance (usually a few millimeters) to facilitate operation. If the position of the valve stem and valve ball cannot be adjusted, the valve stem needs to be pulled outward. The installation stress will be directly transmitted to the welded parts through the valve body, which can easily lead to joint cracks and leaks after long-term operation. Summary of the Invention

[0005] To address the problems existing in the prior art, this utility model provides a high-flow sleeve valve. This sleeve valve has a simple structure, is easy to use, has a large flow rate, and allows for fine adjustment of the positions of the valve stem and valve ball during installation, making installation convenient.

[0006] The technical solution adopted to achieve the above-mentioned objectives of this utility model is as follows:

[0007] A high-flow-rate sleeve valve includes a valve body, a valve stem, and a valve ball. One side of the valve body has a receiving cavity for accommodating the valve ball. The receiving cavity has a first limiting ring and a second limiting ring on opposite sides of the valve body's axial direction. The valve ball is located within the receiving cavity. First sealing rings are provided inside the first and second limiting rings. The valve ball is sealed to the valve body on both sides of the valve body's axial direction via the first sealing rings, and is limited on both sides of the valve body's axial direction by the two first sealing rings. The valve stem is mounted on the valve body and is rotatably connected to it. The valve stem is fixedly connected to the valve ball. A clearance hole is provided on the side of the valve ball facing the valve stem. The end of the valve stem connected to the valve ball is located in the clearance hole. The dimension of the receiving cavity in the direction perpendicular to the valve body's axial direction is larger than the dimension of the valve ball in the corresponding direction. The valve ball can move along the direction perpendicular to the valve body's axial direction under the action of external force.

[0008] The valve body sidewall is provided with a drain port on the side facing away from the valve stem. The axis of the drain port is perpendicular to the axis of the valve body. A detachable filter assembly is provided on the drain port.

[0009] The filter assembly includes a filter screen, a plug, and an outer sleeve. The outer sleeve is open at both ends, with one end connected to the valve body. The drain outlet is located inside the outer sleeve, and the outer sleeve and the drain outlet are coaxial. The filter screen is cylindrical, with one end open, and is fitted onto the drain outlet. The sealing end of the filter screen seals the drain outlet. The plug has external threads, and the other end of the outer sleeve has internal threads. The plug is threaded to the other end of the outer sleeve, and a second sealing ring is provided between the plug and the outer sleeve. The plug has a first limiting shoulder inside, and the sealing end of the filter screen abuts against the first limiting shoulder. The open end of the filter screen abuts against the valve body.

[0010] It also includes a valve cover and a first connecting nut. The valve cover is ring-shaped, with one side of the valve cover located inside the valve body near the valve ball. The valve cover is threadedly connected to the valve body. The receiving cavity is formed by the valve cover and the valve body. The first limiting ring is located inside the valve cover. A third sealing ring is provided on the other end face of the valve cover. An external thread is provided on the other side of the valve cover. An internal thread is provided inside the first connecting nut. The first connecting nut is threadedly connected to the valve cover.

[0011] The first connecting nut is provided with a second limiting shoulder.

[0012] It also includes a second connecting nut, with an external thread on the other end of the valve body away from the valve ball, and an internal thread inside the second connecting nut. The second connecting nut is threadedly connected to the valve body, and a third limiting shoulder is provided inside the second connecting nut.

[0013] The valve body is manufactured by a combination of cutting and CNC machining on metal profiles.

[0014] Compared with the prior art, the beneficial effects and advantages of this utility model are as follows:

[0015] 1. The main body of the valve is made of metal profiles using a cutting process. This process does not require molds, and when the flow rate is increased, there is no need to make matching molds, which reduces production costs.

[0016] 2. The valve sleeve has an clearance hole inside the valve ball. When the valve stem is assembled with the valve ball, the length of the valve stem protruding outside the valve body can be adjusted. When the valve body needs to be installed in a concealed niche, the position of the valve stem assembly can be roughly adjusted according to the depth of the concealed niche, so that the handle protrudes outside the concealed niche and is easy to operate. This avoids the installation stress caused by pulling the valve stem too hard, which would affect the connection strength of the valve sleeve weld and thus cause water leakage after long-term operation of the manifold.

[0017] 3. The valve sleeve has a cavity within the valve body that allows the valve ball to move slightly along the length of the valve stem. During valve installation, after the valve stem is assembled and adjusted, the position of the valve ball via the valve stem can be finely adjusted according to the installation conditions, resulting in a more optimal valve stem position and easier handle operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of a high-flow-rate valve.

[0019] Figure 2 This is a schematic diagram of the internal structure of a high-flow-rate valve.

[0020] Among them, 1-valve body, 2-valve stem, 3-valve ball, 4-valve cover, 5-first connecting nut, 6-second connecting nut, 7-first limiting ring, 8-second limiting ring, 9-first sealing ring, 10-avoidance hole, 11-drain outlet, 12-filter screen, 13-plug, 14-outer sleeve, 15-first limiting shoulder, 16-second sealing ring, 17-third sealing ring, 18-second limiting shoulder, 19-third limiting shoulder, 20-melting piece. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings.

[0022] The structure of the high-flow-rate sleeve valve provided in this embodiment is as follows: Figure 1-2 As shown, it includes valve body 1, valve stem 2, valve ball 3, valve cover 4, first connecting nut 5, and second connecting nut 6.

[0023] The main body of valve body 1 is cut along its length from a standard or custom-cut metal profile (such as an aluminum alloy profile, stainless steel profile, or other high-strength alloy profile). The metal profile has a hollow cavity to accommodate valve core components such as the valve ball. When it is necessary to increase the flow rate of the valve, a larger metal profile can be used for cutting without changing the mold, which greatly reduces the production cost of the main body of the valve body.

[0024] The inner diameter of one side of the valve body 1 increases near its end to accommodate the valve ball 3. The valve cover 4 is annular, with one side located inside one end of the valve body 1, and the side of the valve cover 4 inside the valve body 1 is threadedly connected to the valve body 1. A first limiting ring 7 is provided inside the valve cover 4, and a second limiting ring 8 is provided at a position directly opposite the valve body 1 and the valve cover 4. The space enclosed by the valve body 1, the valve cover 4, the first limiting ring 7, and the second limiting ring 8 constitutes the receiving cavity for the valve ball 3.

[0025] The valve ball 3 is located in the receiving cavity. The first limiting ring 7 and the second limiting ring 8 are respectively provided with the first sealing ring 9. The valve ball 3 is sealed to the valve body 1 and the valve cover 4 on both sides of the valve body 1 through the first sealing ring 9, and the valve ball 3 is limited on both sides of the valve body axial direction through the two first sealing rings 9.

[0026] The valve stem 2 is mounted on the valve body 1, and the valve stem 2 is rotatably connected to the valve body 1. The valve ball 3 has a clearance hole 10 on the side facing the valve stem 1. The valve stem 2 and the valve ball 3 are connected by a snap-fit ​​method. Due to the existence of the clearance hole 10, the length of the valve stem 2 protruding from the valve body 1 can be adjusted. This facilitates the installation of the valve body 1 by adjusting the length of the valve stem 2 protruding from the valve body 1 according to the depth of the recessed niche, thereby avoiding a series of problems caused by installation stress.

[0027] The size of the receiving cavity in the direction perpendicular to the valve body axis is slightly larger than the size of the valve ball 3 in the corresponding direction. When the valve stem 2 is operated under external force, the position of the valve ball 3 in the length direction of the valve stem 1 can be slightly adjusted. During the installation of the sleeve valve, adjusting the position of the valve stem 2 is a coarse adjustment, and adjusting the position of the valve ball 3 is a fine adjustment. Through coarse and fine adjustments, the sleeve valve is installed in a proper position, avoiding damage to the sleeve valve connection caused by installation stress, which could lead to leakage.

[0028] A drain port 11 is provided on the side wall of the valve body 1 facing away from the valve stem 2. The axis of the drain port 11 is perpendicular to the axis of the valve body 1. A detachable filter assembly is provided on the drain port 11.

[0029] The filter assembly includes a filter screen 12, a plug 13, and an outer sleeve 14. The outer sleeve 14 is open at both ends, and the drain outlet 11 is located inside the outer sleeve 14, with the outer sleeve 14 and the drain outlet 11 being coaxial. The filter screen 12 is cylindrical, with one end open, and is fitted onto the drain outlet 11, with the sealing end of the filter screen 12 sealing the outlet of the drain outlet 11.

[0030] The plug 13 has external threads, and the other end of the outer sleeve 14 has internal threads. The plug 13 and the other end of the outer sleeve 14 are threaded together, and a second sealing ring 16 is provided between the plug 13 and the outer sleeve 14. The plug 13 has a first limiting shoulder 15, and the sealing end of the filter screen 12 abuts against the first limiting shoulder 15, while the open end of the filter screen 12 abuts against the valve body 1. When it is necessary to remove the filter screen 12 for cleaning, the plug 13 can be unscrewed, and the filter screen 12 can be removed for cleaning.

[0031] The valve cover 4 has an external thread on its other side, and the first connecting nut 5 has an internal thread, which is threadedly connected to the valve cover 4. A third sealing ring 17 is provided on the other end face of the valve cover 4, which seals the valve with the molten element 20 connected to the first connecting nut 5. The first connecting nut 5 has a second limiting shoulder 18, which connects to the molten element 20.

[0032] The valve body 1 has an external thread at the end away from the valve ball 3, and the second connecting nut 6 has an internal thread, which is threaded to the valve body 1. The second connecting nut 6 has a third limiting shoulder 19, which is connected to the ferrule 20.

Claims

1. A high-flow-rate sleeve valve, comprising a valve body, a valve stem, and a valve ball, characterized in that: A receiving cavity for accommodating a valve ball is provided on one side of the valve body. A first limiting ring and a second limiting ring are respectively provided on both sides of the valve body axial direction. The valve ball is located in the receiving cavity. A first sealing ring is provided on the inner side of the first limiting ring and the second limiting ring. The valve ball is sealed to the valve body on both sides of the valve body axial direction through the first sealing rings. The valve ball is limited on both sides of the valve body axial direction through the two first sealing rings. The valve stem is installed on the valve body and is rotatably connected to the valve body. The valve stem is fixedly connected to the valve ball. A clearance hole is provided on the side of the valve ball facing the valve stem. The end of the valve stem connected to the valve ball is located in the clearance hole. The dimension of the receiving cavity in the direction perpendicular to the valve body axial direction is larger than the dimension of the valve ball in the corresponding direction. The valve ball can move along the direction perpendicular to the valve body axial direction under the action of external force.

2. The high-flow-rate sleeve valve according to claim 1, characterized in that: The valve body sidewall is provided with a drain port on the side facing away from the valve stem. The axis of the drain port is perpendicular to the axis of the valve body. A detachable filter assembly is provided on the drain port.

3. The high-flow-rate sleeve valve according to claim 2, characterized in that: The filter assembly includes a filter screen, a plug, and an outer sleeve. The outer sleeve is open at both ends, with one end connected to the valve body. The drain outlet is located inside the outer sleeve, and the outer sleeve and the drain outlet are coaxial. The filter screen is cylindrical, with one end open, and is fitted onto the drain outlet. The sealing end of the filter screen seals the drain outlet. The plug has external threads, and the other end of the outer sleeve has internal threads. The plug is threaded to the other end of the outer sleeve, and a second sealing ring is provided between the plug and the outer sleeve. The plug has a first limiting shoulder inside, and the sealing end of the filter screen abuts against the first limiting shoulder. The open end of the filter screen abuts against the valve body.

4. The high-flow-rate sleeve valve according to claim 1, characterized in that: It also includes a valve cover and a first connecting nut. The valve cover is ring-shaped, with one side of the valve cover located inside the valve body near the valve ball. The valve cover is threadedly connected to the valve body. The receiving cavity is formed by the valve cover and the valve body. The first limiting ring is located inside the valve cover. A third sealing ring is provided on the other end face of the valve cover. An external thread is provided on the other side of the valve cover. An internal thread is provided inside the first connecting nut. The first connecting nut is threadedly connected to the valve cover.

5. The high-flow-rate sleeve valve according to claim 4, characterized in that: The first connecting nut is provided with a second limiting shoulder.

6. The high-flow-rate sleeve valve according to claim 1, characterized in that: It also includes a second connecting nut, with an external thread on the other end of the valve body away from the valve ball, and an internal thread inside the second connecting nut. The second connecting nut is threadedly connected to the valve body, and a third limiting shoulder is provided inside the second connecting nut.

7. The high-flow-rate sleeve valve according to claim 1, characterized in that: The main body of the valve is made by cutting metal profiles.

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