Stop valve with sealing stop block

Abstract

The utility model discloses a stop valve with a sealing stop block, and belongs to the technical field of stop valves. Comprising a frame assembly and a cut-off assembly, the frame assembly comprises an upper shell, a lower shell, a water outlet shell and a water inlet shell, a fixing block is arranged on the top face of the upper shell, the cut-off assembly comprises a threaded rod, a sealing ring, a spring, a fixing ring, a first gasket, a rubber ring and a second gasket are arranged on the circumferential outer wall of the threaded rod, and a check block column, a check block head, a rubber pad and a check block cone are arranged at the bottom of the threaded rod. And a positioning block is arranged below the stop block cone. According to the utility model, multiple water flow isolation structures are arranged, so that during long-term use, even if one sealing structure is aged and the sealing is not tight, the device still has a better water flow cut-off effect; in addition, the device is simple in structure, convenient to manufacture and low in material cost, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of stop valves, and more specifically to a stop valve with a sealing stopper. Background Art

[0002] The stop valve, also called the stop valve, is one of the most widely used valves. It is popular because of the small friction between the sealing surfaces during opening and closing, it is relatively durable, and the opening height is not large;

[0003] A stop valve is a commonly used valve in water pipes. Its main functions include cutting off or connecting the water flow in the water pipe, controlling the flow rate of water through the lifting and lowering movement of the valve disc, and regulating the flow rate. The stop valve can prevent water from flowing back in the pipe and protect equipment and pipes from damage.

[0004] The existing stop valve only allows water to flow in one direction, and the fluid resistance is large. When it is in long-term operation, the sealing reliability is not strong, resulting in poor water flow cutoff effect; at the same time, some stop valves have complex structures and are difficult to manufacture, resulting in high production costs. In view of this, we propose a stop valve with a sealing block. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] The utility model aims to provide a stop valve with a sealing block to solve the shortcomings of the stop valve with a complex structure and high production cost due to long-term use in the above background technology.

[0007] 2. Technical solution

[0008] A stop valve with a sealing stopper comprises a frame assembly and a shutoff assembly;

[0009] The frame assembly comprises an upper shell, a fixing block is arranged on the top surface of the upper shell, a lower shell is connected to the bottom surface of the upper shell, a water outlet shell and a water inlet shell are arranged on the circumferential outer wall of the lower shell, an upper movable groove is arranged inside the upper shell, a lower movable groove is arranged inside the lower shell, a water outlet groove is arranged inside the water outlet shell, and a water inlet groove is arranged inside the water inlet shell;

[0010] The intercepting assembly includes a threaded rod arranged in the upper movable groove and the lower movable groove, the circumferential outer wall of the threaded rod is provided with a sealing ring, a spring, a fixing ring, a gasket 1, a rubber ring and a gasket 2, the bottom of the threaded rod is connected to a block column, the bottom of the block column is connected to a block head, the circumferential side wall of the block head is sleeved with a rubber pad, the bottom of the block head is connected to a block cone, and a positioning block is provided below the block cone.

[0011] Preferably, the upper shell and the lower shell are made of stainless steel and are cylindrical in shape.

[0012] Preferably, the bottom of the upper movable groove is connected with the top of the lower movable groove, the circumferential side wall of the lower movable groove is connected with the water inlet groove, the bottom of the lower movable groove is connected with the water outlet groove, the upper movable groove and the lower movable groove are in a cylindrical groove state, the bottom surface circle diameter of the upper movable groove is 1.1 cm, and the bottom surface circle diameter of the lower movable groove is 1.8 cm.

[0013] Preferably, the gasket 1 and the gasket 2 are made of polytetrafluoroethylene material, and the sealing ring is made of elastic rubber material.

[0014] Preferably, a rotating handle is provided at the top of the threaded rod, and the rotating handle is made of stainless steel.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] The water inlet trough is isolated by arranging the block column, and the block head and the block cone are embedded in the hole of the positioning block to block the positioning block. At the same time, the rubber pad is pressed on the top surface of the hole of the positioning block by the block head to seal the positioning block, thereby further isolating the spatial connection between the lower movable trough and the water outlet trough. Through multiple isolations, the device can still have a good water flow cutoff effect during long-term use even if one sealing structure is aged and causes a loose seal. In addition, the device has a simple structure, and the threaded rod of the intercepting component drives the block column below to move to achieve the water flow cutoff effect. It is easy to manufacture, has a low material cost, and reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic cross-sectional diagram of the overall structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure disassembly of the interception component of the utility model;

[0021] Figure 4 This is a schematic diagram of the block head structure of the utility model.

[0022] Explanation of numbers in the figure: 1. Frame assembly; 2. Cut-off assembly; 101. Upper shell; 102. Lower shell; 103. Water outlet shell; 104. Water inlet shell; 105. Fixed block; 106. Upper movable groove; 107. Lower movable groove; 108. Water inlet groove; 109. Water outlet groove; 201. Threaded rod; 202. Sealing ring; 203. Spring; 204. Fixed ring; 205. Gasket 1; 206. Rubber ring; 207. Gasket 2; 208. Stopper column; 209. Rubber pad; 210. Stopper head; 211. Stopper cone; 212. Positioning block; 213. Turning handle. DETAILED DESCRIPTION

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] See also Figure 1-4 , the utility model provides a technical solution:

[0027] A stop valve with a sealing stopper comprises a frame assembly 1 and a shutoff assembly 2;

[0028] Specifically, the frame assembly 1 includes an upper shell 101, a fixing block 105 is welded on the top surface of the upper shell 101, and a threaded hole is opened on the fixing block 105 from top to bottom to facilitate the rotation of the threaded rod 201 in the threaded hole, a lower shell 102 is welded on the bottom surface of the upper shell 101, and a water outlet shell 103 and a water inlet shell 104 are welded on the circumferential outer wall of the lower shell 102, an upper movable groove 106 is arranged inside the upper shell 101, and the upper movable groove 106 provides a movable space for the threaded rod 201, a lower movable groove 107 is arranged inside the lower shell 102, a water outlet groove 109 is arranged inside the water outlet shell 103, and a water inlet groove 108 is arranged inside the water inlet shell 104, and the lower movable groove 107 provides space for water to flow from the water inlet groove 108 to the water outlet groove 109, and provides an operating space for the water flow cutoff of the interception assembly 2;

[0029] Further, the interception component 2 includes a threaded rod 201 arranged in the upper movable groove 106 and the lower movable groove 107, and the circumferential outer wall of the threaded rod 201 is provided with a sealing ring 202, a spring 203, a fixing ring 204, a gasket 205, a rubber ring 206 and a gasket 207, the sealing ring 202 is connected to the bottom of the fixed block 105, the bottom of the sealing ring 202 is connected to the spring 203, the bottom of the spring 203 is connected to the fixing ring 204, the fixing ring 204 is a steel ring structure, the fixing ring 204 is welded on the inner wall of the upper movable groove 106, the fixing ring 204 is provided with a threaded hole, which is convenient for the threaded rod 201 to rotate, the sealing ring 202 is subjected to the elastic force of the spring 203, and is firmly connected to the bottom of the fixed block 105 to play a sealing role, the bottom adhesive of the fixing ring 204 is bonded with the gasket 205, and the bottom adhesive of the gasket 205 is bonded with the gasket 205. A rubber ring 206 is bonded, and a gasket 207 is bonded with an adhesive at the bottom of the rubber ring 206. The gasket 1 205, the rubber ring 206 and the gasket 207 play a sealing role, so that the water flow will not flow into the upper movable groove 106. A block column 208 is welded at the bottom of the threaded rod 201, and a block head 210 is welded at the bottom of the block column 208. A rubber pad 209 is sleeved on the circumferential side wall of the block head 210, and the top surface of the rubber pad 209 is bonded to the bottom surface of the block column 208 with adhesive. A block cone 211 is welded at the bottom of the block head 210, and a positioning block 212 is arranged below the block cone 211. The circumferential outer wall of the positioning block 212 is welded to the inner wall of the lower movable groove 107, and the positioning block 212 is provided with holes from top to bottom. The function of the holes is to allow water to pass through and to allow the block head 210 to be embedded. The rubber pad 209 is pressed down on the top surface of the hole to achieve a flow interception effect.

[0030] It is worth noting that, in order to make the external structure strong and stable, the upper shell 101 and the lower shell 102 are made of stainless steel and are cylindrical in shape.

[0031] It is worth noting that in order to make the internal spaces cooperate with each other and achieve the cut-off effect, the bottom of the upper movable groove 106 is connected with the top of the lower movable groove 107, the circumferential side wall of the lower movable groove 107 is connected with the water inlet groove 108, and the bottom of the lower movable groove 107 is connected with the water outlet groove 109. The upper movable groove 106 and the lower movable groove 107 are in a cylindrical groove state, and the bottom circle diameter of the upper movable groove 106 is 1.1 cm, and the bottom circle diameter of the lower movable groove 107 is 1.8 cm.

[0032] In addition, in order to achieve a good sealing effect, the gasket 1 205 and the gasket 2 207 are made of polytetrafluoroethylene material, and the sealing ring 202 is made of elastic rubber material.

[0033] Finally, in order to facilitate the rotation of the threaded rod 201, a rotating handle 213 is welded on the top of the threaded rod 201, and the rotating handle 213 is made of stainless steel.

[0034] Working principle: When the device is needed to be used, the threaded rod 201 is rotated to move the threaded rod 201 downward, driving the block column 208 to move downward, and the side wall of the block column 208 blocks the port of the water inlet groove 108, so that the water inlet groove 108 is isolated from the space of the lower movable groove 107, and the water flow from the water inlet groove 108 to the lower movable groove 107 is blocked. Furthermore, the block cone 211 and the block head 210 are embedded in the hole of the positioning block 212, which has a blocking effect on the hole of the positioning block 212. The rubber pad 209 is pressed down on the top surface of the hole and is pressed by the block column 208, so that the hole of the positioning block 212 is completely sealed. Even if a small amount of water flows from the water inlet groove 108 into the lower movable groove 107, it will not further flow into the water outlet groove 109, thereby cutting off the water flow.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A stop valve with a sealing stopper, characterized in that: It comprises a frame component (1) and a shut-off component (2); A frame assembly (1), the frame assembly (1) comprising an upper shell (101), the top surface of the upper shell (101) being provided with a fixing block (105), the bottom surface of the upper shell (101) being connected to a lower shell (102), the circumferential outer wall of the lower shell (102) being provided with a water outlet shell (103) and a water inlet shell (104), the upper shell (101) being provided with an upper movable groove (106), the lower shell (102) being provided with a lower movable groove (107), the water outlet shell (103) being provided with a water outlet groove (109), and the water inlet shell (104) being provided with a water inlet groove (108); A shut-off assembly (2), the shut-off assembly (2) comprising a threaded rod (201) arranged in the upper movable groove (106) and the lower movable groove (107); a sealing ring (202), a spring (203), a fixing ring (204), a gasket 1 (205), a rubber ring (206) and a gasket 2 (207) are arranged on the circumferential outer wall of the threaded rod (201); a block column (208) is connected to the bottom of the threaded rod (201); a block head (210) is connected to the bottom of the block column (208); a rubber pad (209) is sleeved on the circumferential side wall of the block head (210); a block cone (211) is connected to the bottom of the block head (210); a positioning block (212) is arranged below the block cone (211).

2. A stop valve with a sealing stopper according to claim 1, characterized in that: The upper shell (101) and the lower shell (102) are made of stainless steel and are cylindrical in shape.

3. A stop valve with a sealing block according to claim 2, characterized in that: The bottom of the upper movable groove (106) is connected to the top of the lower movable groove (107), the circumferential side wall of the lower movable groove (107) is connected to the water inlet groove (108), and the bottom of the lower movable groove (107) is connected to the water outlet groove (109). The upper movable groove (106) and the lower movable groove (107) are in a cylindrical groove hole state. The bottom surface of the upper movable groove (106) has a circular diameter of 1.1 cm, and the bottom surface of the lower movable groove (107) has a circular diameter of 1.8 cm.

4. A stop valve with a sealing stopper according to claim 3, characterized in that: The gasket 1 (205) and the gasket 2 (207) are made of polytetrafluoroethylene material, and the sealing ring (202) is made of elastic rubber material.

5. A stop valve with a sealing stopper according to claim 4, characterized in that: A rotating handle (213) is provided at the top of the threaded rod (201), and the rotating handle (213) is made of stainless steel.

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