Heat preservation stop valve

Abstract

The heat preservation stop valve comprises a valve body, one side of the valve body is provided with a water inlet, one side of the water inlet is fixedly connected with an installation ring, the bottom end of the installation ring is in threaded connection with a bolt, the top end of the bolt is movably connected with a movable block in a sleeved mode, and the bottom end of the movable block is connected with a first movable shaft in an embedded mode. A special-shaped rod is rotatably connected to the surface of the first movable shaft, a limiting ring is movably connected to one side of the special-shaped rod, a groove is formed in the mounting ring, a third movable shaft is mounted in the groove, and a bolt is screwed to drive a movable block to move and drive the first movable shaft to move; the special-shaped rod rotates through the third movable shaft and the first movable shaft, butt joint pipes which are in butt joint after installation are clamped, the stability after installation can be improved through clamping, the situation that loosening is caused by operation vibration after installation can be effectively avoided, and butt joint installation is more convenient and faster through screwing.

Description

Technical Field

[0001] This utility model relates to the field of gate valve technology, and in particular to a heat-insulating gate valve. Background Technology

[0002] A gate valve, also known as a stop valve, is a type of forced-seal valve. Therefore, when the valve is closed, pressure must be applied to the valve disc to force a leak-proof seal. When the medium enters the valve from below the valve disc, the operating force needs to overcome the resistance. The gate valve's opening and closing element is a plug-shaped valve disc, with a flat or conical sealing surface. The valve disc moves linearly along the center line of the valve seat. The valve stem can also move in a rising and rotating manner. It can be used to control the flow of various types of fluids, such as air, water, steam, various corrosive media, mud, oil, liquid metals, and radioactive media.

[0003] However, when using the above-mentioned structure, the insulated shut-off valve may experience leakage if tilted during installation, causing misalignment of the mating assembly. Additionally, after installation, prolonged use or vibration should be avoided as it may loosen the threaded sleeve, making installation difficult. Furthermore, with long-term use, the valve body may require internal replacement or repair, and a fixed installation makes disassembly difficult. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a thermal insulation shut-off valve that, when installed, is tilted, causing the docking installation to be misaligned, which may lead to leakage. At the same time, after installation, it is necessary to avoid long-term use or vibration, which may cause the screw sleeve to loosen and make installation difficult. In addition, with long-term use of the valve body, the internal parts may need to be replaced or repaired, and a fixed installation is not conducive to later disassembly.

[0005] To achieve the above objectives, a heat-insulating shut-off valve is provided, comprising a valve body, an inlet on one side of the valve body, and a mounting ring fixedly connected to the inlet side. A bolt is threaded to the bottom end of the mounting ring, and a movable block is movably sleeved on the top end of the bolt. A first movable shaft is embedded and connected to the bottom end of the movable block, and a shaped rod is rotatably connected to the surface of the first movable shaft. A limit ring is movably connected to one side of the shaped rod, and a groove is provided inside the mounting ring. A third movable shaft is installed inside the groove and rotatably connected to the surface of the shaped rod. A connecting pipe is movably sleeved on one side of the mounting ring.

[0006] By tightening the bolts, the movable block moves, which in turn moves the first movable shaft. This causes the irregularly shaped rod to rotate via the third and first movable shafts, clamping the assembled connecting pipe. This clamping increases the stability after installation and effectively prevents loosening caused by vibrations during operation. Tightening the bolts also makes the assembly process more convenient.

[0007] According to the aforementioned heat-insulating shut-off valve, the irregularly shaped rod has a through groove on its surface.

[0008] According to the aforementioned heat-insulating shut-off valve, a second movable shaft is embedded and connected to the outer wall of the limiting ring.

[0009] According to the aforementioned heat-insulating shut-off valve, a first flange is installed at the top of the valve body, and a plurality of mounting holes are opened at the top of the first flange. A mounting block is movably sleeved inside the mounting holes, and the mounting block is fixedly installed at the bottom of the second flange.

[0010] According to the aforementioned heat-insulating shut-off valve, the inner wall of the mounting hole is symmetrically provided with slots.

[0011] According to the aforementioned heat-insulating shut-off valve, a screw is movably sleeved inside the mounting block, and a threaded block is threadedly connected to the surface of the screw. A first rotating shaft is embedded in the surface of the threaded block, and a movable strip is rotatably connected to the surface of the first rotating shaft. A second rotating shaft is rotatably connected to the top of the movable strip, and the second rotating shaft is embedded in the bottom end of the locking block.

[0012] According to the aforementioned heat-insulating shut-off valve, a limiting groove is formed on the surface of the mounting block.

[0013] The mounting block is movably inserted into the mounting hole, allowing the first flange and the second flange to be mated and installed. Tightening the screw causes the threaded block to move along the screw surface, pushing the first rotating shaft to move. This causes the movable strip to rotate via the first and second rotating shafts, pushing the locking block to move and thus movably engage in the locking groove. This makes the mating and installation of the first and second flanges more secure. The first and second flanges can be disassembled and installed by tightening, allowing for convenient disassembly and installation of the valve body top, facilitating internal replacement and maintenance.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a structural diagram of a heat-insulating shut-off valve according to the present invention;

[0017] Figure 2 This utility model relates to a heat-insulating shut-off valve. Figure 1 Enlarged structural diagram of the mounting ring;

[0018] Figure 3This utility model relates to a heat-insulating shut-off valve. Figure 1 Cross-sectional structural diagram of the mounting ring;

[0019] Figure 4 This utility model relates to a heat-insulating shut-off valve. Figure 3 Enlarged structural diagram of the first and second flanges;

[0020] Figure 5 This utility model relates to a heat-insulating shut-off valve. Figure 4 Partial cross-sectional view of the mounting block.

[0021] Legend:

[0022] 1. Valve body; 2. Inlet; 3. Mounting ring; 301. Bolt; 302. Movable block; 303. First movable shaft; 304. Irregular rod; 305. Through groove; 306. Second movable shaft; 307. Limiting ring; 308. Groove; 309. Third movable shaft; 4. Connecting pipe; 5. First flange; 501. Mounting hole; 502. Slot; 6. Mounting block; 601. Screw; 602. Threaded block; 603. First rotating shaft; 604. Movable strip; 605. Second rotating shaft; 606. Locking block; 607. Limiting groove; 7. Second flange. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Reference Figures 1 to 5 This utility model discloses a heat-insulating shut-off valve, comprising a valve body 1, an inlet 2 on one side of the valve body 1, and a mounting ring 3 fixedly connected to one side of the inlet 2. A bolt 301 is threadedly connected to the bottom end of the mounting ring 3, and a movable block 302 is movably sleeved on the top end of the bolt 301. A first movable shaft 303 is embedded and connected to the bottom end of the movable block 302, and a shaped rod 304 is rotatably connected to the surface of the first movable shaft 303. A limit ring 307 is movably connected to one side of the shaped rod 304, and a groove 308 is formed inside the mounting ring 3. A third movable shaft 309 is installed inside the groove 308 and rotatably connected to the surface of the shaped rod 304. A connecting pipe 4 is movably sleeved on one side of the mounting ring 3. By tightening the bolt 301, the movable block 302 is moved, causing the shaped rod 304 to rotate, thus clamping the connected pipe 4 after installation. This clamping increases the stability after installation and effectively prevents loosening caused by operational vibrations after installation.

[0025] The irregular rod 304 has a through groove 305 on its surface. When the movable block 302 moves to one side, it drives the first movable shaft 303 to move to one side. At the same time, the first movable shaft 303 slides in the through groove 305, providing space for the irregular rod 304 to rotate when it rotates through the third movable shaft 309.

[0026] The outer wall of the limiting ring 307 is embedded with a second movable shaft 306. When the irregular rod 304 rotates through the third movable shaft 309, it pushes the limiting ring 307 to clamp. Since the part to be clamped is threaded, the second movable shaft 306 increases the mobility of the limiting ring 307, allowing for a more snug clamping fit.

[0027] A first flange 5 is mounted on the top of the valve body 1, and the top of the first flange 5 has several mounting holes 501. A mounting block 6 is movably fitted inside the mounting holes 501, and the mounting block 6 is fixedly mounted on the bottom of the second flange 7. By movably embedding the mounting block 6 into the mounting holes 501, the first flange 5 and the second flange 7 are mated and installed.

[0028] The inner wall of the mounting hole 501 is symmetrically provided with slots 502. The locking block 606 is movably embedded into the slot 502 to provide a firm fit for the mating installation of the first flange 5 and the second flange 7.

[0029] The mounting block 6 is internally fitted with a screw 601, and the screw 601 is threadedly connected to a threaded block 602. A first rotating shaft 603 is embedded in the surface of the threaded block 602, and a movable strip 604 is rotatably connected to the surface of the first rotating shaft 603. A second rotating shaft 605 is rotatably connected to the top of the movable strip 604, and the second rotating shaft 605 is embedded in the bottom of the retaining block 606. Tightening the screw 601 causes the threaded block 602 to move threadedly on the surface of the screw 601, pushing the first rotating shaft 603 to move. This causes the movable strip 604 to rotate via the first rotating shaft 603 and the second rotating shaft 605, pushing the retaining block 606 to move and thus movably engage in the retaining groove 502. This makes the mating installation of the first flange 5 and the second flange 7 more secure. The valve body 1 can be easily disassembled and installed by tightening the first flange 5 and the second flange 7.

[0030] A limiting groove 607 is provided on the surface of the mounting block 6. When the locking block 606 is moved by twisting, the limiting groove 607 serves to store the locking block 606.

[0031] Working principle: First, by tightening bolt 301, the movable block 302 moves in the groove 308, which in turn moves the first movable shaft 303. This causes the irregular rod 304 to rotate via the third movable shaft 309 and the first movable shaft 303, clamping the mating pipe 4 after installation. This clamping increases the stability after installation and effectively prevents loosening caused by operational vibrations. Then, the mounting block 6 is movably inserted into the mounting hole 501, allowing the first flange 5 and the second flange 7 to be mated and installed. Tightening the screw 601 causes the threaded block 602 to move threadedly on the surface of the screw 601, pushing the first rotating shaft 603 to move. This causes the movable bar 604 to rotate through the first rotating shaft 603 and the second rotating shaft 605, pushing the locking block 606 to move and thus movably embed into the locking groove 502. This makes the first flange 5 and the second flange 7 more securely connected and installed. The valve body 1 can be easily disassembled and installed by tightening the first flange 5 and the second flange 7.

[0032] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An insulating stop valve, characterized by The device includes a valve body (1), with an inlet (2) on one side and a mounting ring (3) fixedly connected to the inlet (2). The bottom end of the mounting ring (3) is threaded with a bolt (301), and the top end of the bolt (301) is movably sleeved with a movable block (302). The bottom end of the movable block (302) is embedded with a first movable shaft (303), and a shaped rod (304) is rotatably connected to the surface of the first movable shaft (303). A limit ring (307) is movably connected to one side of the shaped rod (304), and a groove (308) is provided inside the mounting ring (3). A third movable shaft (309) is installed inside the groove (308), and the third movable shaft (309) is rotatably connected to the surface of the shaped rod (304). A connecting pipe (4) is movably sleeved to one side of the mounting ring (3).

2. A thermostop valve according to claim 1, characterized in that The irregular rod (304) has a through groove (305) on its surface.

3. The holding stop valve according to claim 1, wherein The outer wall of the limiting ring (307) is embedded with a second movable shaft (306).

4. The holding stop valve according to claim 1, wherein The valve body (1) is equipped with a first flange (5) at its top end, and the first flange (5) has several mounting holes (501) at its top end. A mounting block (6) is movably sleeved inside the mounting hole (501), and the mounting block (6) is fixedly installed at the bottom end of the second flange (7).

5. A thermostop valve according to claim 4, characterised in that The mounting hole (501) has symmetrical slots (502) on its inner wall.

6. An insulating stop valve according to claim 4, wherein The mounting block (6) is movably sleeved with a screw (601), and the screw (601) is threaded with a threaded block (602). The threaded block (602) is embedded with a first rotating shaft (603), and the first rotating shaft (603) is rotatably connected with a movable strip (604). The top of the movable strip (604) is rotatably connected with a second rotating shaft (605), and the second rotating shaft (605) is embedded in the bottom of the locking block (606).

7. A thermostop valve according to claim 6, characterised in that The mounting block (6) has a limiting groove (607) on its surface.

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