Sealing stop valve

Abstract

The utility model discloses a sealing stop valve which comprises a block body, a flow guide groove is formed in the block body, the left side and the right side of the flow guide groove are both communicated and connected with guide pipes, a flow stopping block is connected in the flow guide groove in a sliding mode, the top of the flow stopping block is connected with a valve rod through a bolt, and the top of the block body is connected with a positioning block through a bolt. A positioning block is arranged in the valve rod, a threaded hole matched with the valve rod is formed in the positioning block, the top end of the valve rod penetrates through the threaded hole and extends to the position above the positioning block, the valve rod is hollow, an external thread matched with the threaded hole is formed in the outer wall of the valve rod, a pressurizing block is attached to the bottom of the flow stopping block, and a movable groove is formed in the flow stopping block. And a piston block is slidably connected into the movable groove. According to the technical scheme, through mutual cooperation of the lifting rod, the piston block, the pressurizing block, the buffer spring and other components, effective pressurizing can be achieved, accordingly, effective flow guiding can be achieved, and the use efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stop valves, in particular to a sealing stop valve. Background Art

[0002] The opening and closing part of the stop valve is a plug-shaped valve disc, the sealing surface is a plane or a cone, and the valve disc moves linearly along the center line of the fluid. The movement of the valve stem can be a lifting rod type or a lifting and rotating rod type. The stop valve is only suitable for full opening and full closing, and is not suitable for regulation and throttling. However, the sealed stop valve in the prior art cannot be effectively pressurized when in use, which makes it impossible to effectively guide the flow, reducing its use efficiency. Therefore, we propose a sealed stop valve. Utility Model Content

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a sealed stop valve that can be effectively pressurized so that it can effectively guide the flow and improve its use efficiency.

[0004] To achieve the above-mentioned purpose, a sealed stop valve is provided, comprising: a block body, a guide groove is arranged in the block body, and the left and right sides of the guide groove are connected to conduits, a flow blocking block is slidably connected in the guide groove, and the top of the flow blocking block is connected to a valve stem by bolts, the top of the block body is connected to a positioning block by bolts, and the positioning block is provided with a threaded hole matching the valve stem, and the top end of the valve stem passes through the threaded hole and extends to the top of the positioning block.

[0005] According to the sealed stop valve, the valve stem is hollow, and an external thread matching the threaded hole is formed on the outer wall of the valve stem.

[0006] According to the described sealing stop valve, a pressure block is attached to the bottom of the baffle block, the baffle block is provided with a movable groove, and a piston block is slidably connected in the movable groove, the bottom of the piston block is connected to a docking rod by bolts, and a through hole matching the docking rod is provided at the bottom of the inner cavity of the movable groove, the bottom end of the docking rod is connected to the top of the pressure block through the through hole, the top of the piston block is connected to a lifting rod by bolts, and a through hole matching the lifting rod is provided on the top of the inner cavity of the movable groove, and the top of the lifting rod is connected to the valve stem with a handwheel through the through hole.

[0007] According to the sealed stop valve, both left and right sides of the valve stem are connected with handles via bolts.

[0008] According to the sealing stop valve, a flange is sleeved on the side of the conduit away from the block, and a mounting hole is provided on the flange.

[0009] According to the sealed stop valve, the docking rod outer sleeve is provided with a buffer spring, and the top and bottom ends of the buffer spring are respectively connected to the bottom of the pressure block and the bottom of the inner cavity of the movable groove, and the docking rod outer sleeve is provided with a sealing ring, and the sealing ring is sleeved in the through hole on the bottom of the inner cavity of the movable groove.

[0010] According to the sealing stop valve, a filter screen is connected inside the conduit via bolts.

[0011] The above scheme has at least one of the following beneficial effects: the technical scheme can effectively pressurize through the mutual cooperation between the lifting rod, piston block, pressure block and buffer spring and other components, thereby enabling it to effectively guide the flow and improving its use efficiency.

[0012] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0014] Figure 1 It is a main perspective view of the utility model;

[0015] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure;

[0016] Figure 3 for Figure 1 A in the enlarged view;

[0017] Figure 4 for Figure 1 A partial stereoscopic view of components such as the middle pressure block and the baffle block.

[0018] Legend:

[0019] 1. Block; 2. Conduit; 3. Flange; 4. Mounting hole; 5. Positioning block; 6. Handle; 7. Valve stem; 8. Lifting rod; 9. Handwheel; 10. Guide groove; 11. Filter screen; 12. Flow block; 13. Piston block; 14. Buffer spring; 15. Docking rod; 16. Sealing ring; 17. Pressure block; 18. Movable groove. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0021] Reference Figures 1 to 4 The utility model embodiment is a sealed stop valve, which includes a block 1, a guide groove 10 is arranged in the block 1, and the left and right sides of the guide groove 10 are connected to the conduit 2, a baffle block 12 is slidably connected in the guide groove 10, and the top of the baffle block 12 is connected to the valve stem 7 by bolts, the top of the block 1 is connected to the positioning block 5 by bolts, and the positioning block 5 is provided with a threaded hole matching the valve stem 7, the top of the valve stem 7 passes through the threaded hole and extends to the top of the positioning block 5, the valve stem 7 is hollow, and the outer wall of the valve stem 7 is provided with an external thread matching the threaded hole, and the left and right sides of the valve stem 7 are connected to the handle 6 by bolts.

[0022] A pressure block 17 is attached to the bottom of the baffle block 12, and a movable groove 18 is provided on the baffle block 12, and a piston block 13 is slidably connected in the movable groove 18. A docking rod 15 is connected to the bottom of the piston block 13 by bolts, and a through hole matching the docking rod 15 is opened at the bottom of the inner cavity of the movable groove 18, and the bottom end of the docking rod 15 is connected to the top of the pressure block 17 through the through hole, and a lifting rod 8 is connected to the top of the piston block 13 by bolts, and a through hole matching the lifting rod 8 is opened on the top of the inner cavity of the movable groove 18, and the top of the lifting rod 8 is connected to the hand wheel 9 through the through hole and the valve stem 7, and a buffer spring 14 is provided on the outer sleeve of the docking rod 15, and the top and bottom ends of the buffer spring 14 are respectively connected to the bottom of the pressure block 17 and the bottom of the inner cavity of the movable groove 18, and a sealing ring 16 is provided on the outer sleeve of the docking rod 15, and the sealing ring 16 is sleeved in the through hole on the bottom of the inner cavity of the movable groove 18. Through this structure, it is possible to effectively pressurize it, thereby enabling it to effectively guide the flow, thereby improving its utilization efficiency.

[0023] A flange 3 is sleeved on the side of the conduit 2 away from the block 1, and a mounting hole 4 is provided on the flange 3. A filter screen 11 is bolted inside the conduit 2. With this structure, convenient installation and filtering can be achieved.

[0024] Working principle: When in use, this technical solution is first connected to the external pipeline through the flange 3 and the mounting hole 4, and the valve stem 7 and the lifting rod 8 are fixed by the latch. The handle 6 is turned clockwise or counterclockwise, and the handle 6 drives the baffle block 12 to slide upward or downward in the guide groove 10 through the valve stem 7 to achieve flow regulation. The latch is pulled out, and the handwheel 9 is pressed downward or loosened. The handwheel 9 drives the piston block 13 to slide downward or upward in the movable groove 18 through the lifting rod 8. The piston block 13 moves downward or upward through the docking rod 15 and squeezes the buffer spring 14. The docking rod 15 drives the pressure block 17 to move downward or upward, so that it can be effectively pressurized, thereby enabling it to effectively guide the flow and improve its use efficiency.

[0025] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A sealed stop valve, characterized in that: include: A block (1), wherein a guide groove (10) is arranged in the block (1), and the left and right sides of the guide groove (10) are both connected to a conduit (2), a baffle block (12) is slidably connected in the guide groove (10), and the top of the baffle block (12) is connected to a valve stem (7) by bolts, and the top of the block (1) is connected to a positioning block (5) by bolts, and the positioning block (5) is provided with a threaded hole matching the valve stem (7), and the top of the valve stem (7) passes through the threaded hole and extends to the top of the positioning block (5).

2. A sealed stop valve according to claim 1, characterized in that: The valve stem (7) is hollow, and an external thread matching the threaded hole is provided on the outer wall of the valve stem (7).

3. A sealed stop valve according to claim 1, characterized in that: The bottom of the baffle block (12) is fitted with a pressure block (17), the baffle block (12) is provided with a movable groove (18), and a piston block (13) is slidably connected in the movable groove (18), the bottom of the piston block (13) is connected to a docking rod (15) by bolts, and the bottom of the inner cavity of the movable groove (18) is provided with a through hole matching the docking rod (15), the bottom end of the docking rod (15) is connected to the top of the pressure block (17) through the through hole, the top of the piston block (13) is connected to a lifting rod (8) by bolts, and the top of the inner cavity of the movable groove (18) is provided with a through hole matching the lifting rod (8), and the top end of the lifting rod (8) is connected to a hand wheel (9) through the through hole and the valve stem (7).

4. A sealed stop valve according to claim 1, characterized in that: The left and right sides of the valve stem (7) are both connected with handles (6) via bolts.

5. A sealed stop valve according to claim 1, characterized in that: A flange (3) is sleeved on the side of the conduit (2) away from the block (1), and a mounting hole (4) is provided on the flange (3).

6. A sealed stop valve according to claim 3, characterized in that: The docking rod (15) is provided with a buffer spring (14) on its outer sleeve, and the top and bottom ends of the buffer spring (14) are respectively connected to the bottom of the pressure block (17) and the bottom of the inner cavity of the movable groove (18). The docking rod (15) is provided with a sealing ring (16) on its outer sleeve, and the sealing ring (16) is sleeved in a through hole on the bottom of the inner cavity of the movable groove (18).

7. A sealed stop valve according to claim 1, characterized in that: A filter screen (11) is connected inside the conduit (2) via bolts.

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