A self-controlled large-diameter quick-cut bellows gate valve

Abstract

The present invention relates to the field of gate valve technology, and in particular to an automatic large-caliber quick-cut bellows gate valve. Its technical solution includes: a mounting plate, a gate valve body and a second turntable, a sliding block is slidably mounted on the top of the mounting plate, a support frame is movably mounted on the top of the sliding block, a gate valve body is limitedly fixed on the top of the mounting plate, a water inlet and a water outlet are fixedly mounted on both sides of the gate valve body, a clamping sleeve that cooperates with the water inlet and the water outlet is movably mounted on the top of the support frame, and a valve cover is fixedly mounted on the top of the gate valve body. The present invention is provided with a sliding block, a first movable rod, a clamping sleeve and a support frame that cooperate with each other, and the clamping sleeve can fix the water inlet and the water outlet, so that the buffer operation can be effectively performed during the closing and opening of the gate valve body to prevent excessive impact force from shaking and causing damage to the gate valve body.

Description

Technical Field

[0001] The invention relates to the technical field of gate valves, in particular to an automatic large-caliber fast-cutting bellows gate valve. Background Art

[0002] The gate valve is a gate valve with a start-and-stop function. The movement direction of the gate valve is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate valve is sealed by the contact between the valve seat and the gate valve. Usually, the sealing surface is welded with metal materials to increase wear resistance. The gate valve has a rigid gate valve and an elastic gate valve. Depending on the gate valve, the gate valve is divided into a rigid gate valve and an elastic gate valve. The start-and-stop part of the gate valve is the gate valve. The movement direction of the gate valve is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate valve has two sealing surfaces. The most commonly used mode is that the two sealing surfaces of the gate valve form a wedge shape, and the wedge angle varies with the valve parameters. The gate valve of the wedge gate valve can be made into an integral part, which is called a rigid gate valve. When the gate valve is closed, the sealing surface can be sealed only by the medium pressure, that is, the sealing surface of the gate valve is pressed to the valve seat on the other side by the medium pressure to ensure the sealing of the sealing surface. This is self-sealing. , Most of the gate valves adopt forced sealing, that is, when the valve is closed, it is necessary to rely on external force to press the gate to the valve seat to ensure the sealing of the sealing surface. The gate of the gate valve moves linearly with the valve stem, also called a rising stem gate valve, usually with a trapezoidal thread on the lifting rod, through the nut at the top of the valve and the guide groove on the valve body, the rotating motion is changed into linear motion, that is, the operating torque is changed into an operating thrust, when the valve is opened, when the gate lifting height is equal to the valve diameter, the fluid channel is completely unblocked, but at run time, this position cannot be monitored, the full opening position of the valve is determined by the position of the gate, that is, the stroke, and some gate valves have the stem nut located on the gate, and the handwheel rotates to drive the valve stem to rotate, and the gate is lifted. This valve is called a rotary stem gate valve, or a dark stem gate valve. In actual use, the top of the valve stem is used as a mark, that is, the open position, as its fully open position valve.

[0003] After searching, the patent announcement number CN214197343U discloses a high-pressure bellows gate valve with an insulation jacket. The invention discloses a high-pressure bellows gate valve with an insulation jacket, which relates to the technical field of valve equipment. Aiming at the problems that the metal bellows of most existing high-pressure bellows gate valves will suffer from corrosion fracture and fatigue fracture, and most bellows gate valves have poor sealing and poor insulation, the following scheme is proposed, including a filter box, the filter box is fixedly installed above the installation platform, a feed inlet is fixedly opened on the top of the filter box, and two feed transfer plates are fixedly installed inside the filter box, support plates are fixedly installed on the inner walls on both sides below the feed transfer plates, and springs are fixedly installed between the two corresponding support plates.

[0004] The existing automatic large-diameter quick-cut bellows gate valve has the following defects:

[0005] 1. The existing automatic large-caliber quick-cut bellows gate valve does not have a good buffer structure. When the current gate valve is in use, due to the large water flow inside the bellows, the impact force of the water flow will cause the gate valve to shake during the closing and opening of the gate, which is inconvenient for buffering and easily causes damage to the gate valve;

[0006] 2. The general automatic large-diameter quick-cut bellows gate valve is not convenient to install. When docking with the bellows, due to the different positions of the bellows and the gate valve, it is necessary to manually lift the gate valve and align it with the bellows. The installation operation is time-consuming and labor-intensive, which reduces the convenience. For this reason, we propose an automatic large-diameter quick-cut bellows gate valve to solve the existing problem. Summary of the invention

[0007] The object of the present invention is to provide a self-controlled large-diameter fast-cutting bellows gate valve to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a self-controlled large-diameter quick-cut bellows gate valve, comprising a mounting plate, a gate valve body and a second turntable, a sliding block is slidably mounted on the top of the mounting plate, a support frame is movably mounted on the top of the sliding block, a gate valve body is limitedly fixed on the top of the mounting plate, a water inlet and a water outlet are fixedly mounted on both sides of the gate valve body, a clamping sleeve cooperating with the water inlet and the water outlet is movably mounted on the top of the support frame, a valve cover is fixedly mounted on the top of the gate valve body, a first screw rod is movably mounted inside the valve cover, a circulation groove is arranged inside the gate valve body, a mounting seat is arranged at the bottom of the mounting plate, a reverse screw rod is movably mounted inside the mounting seat, and a second movable rod is movably mounted on the reverse screw rod and the mounting plate.

[0009] The water inlet and the water outlet can be fixed by the clamping sleeve, so that the buffer operation can be effectively performed during the closing and opening of the gate valve body to prevent excessive impact force from causing shaking and damage to the gate valve body. The second movable rod moves along the reverse screw rod, and the mounting plate can be used to conveniently drive the gate valve body and the bellows to align the operation, which is convenient for the staff to install and connect, reducing the trouble caused by manual lifting.

[0010] Preferably, the mounting plate and the sliding block are slidably mounted via a mounting groove, a first movable rod matched with the sliding block is fixedly mounted inside the mounting groove, and a spring is sleeved on the outside of the first movable rod. The two sides of the support frame are moved during the offset and activity, and the sliding block can be used to squeeze the spring sleeved on the outside of the first movable rod, and the sliding block can be easily rebounded by the rebound effect of the spring, which can conveniently prevent the gate valve body from shaking due to the impact force generated by the water flow, and can effectively perform buffering and shock absorption.

[0011] Preferably, the clamping sleeve and the support frame are movably mounted via a movable shaft, an annular groove is provided on the outside of the water inlet and the water outlet, and a snap-fit ​​sleeve that matches the annular groove is provided on the inside of the clamping sleeve. The clamping sleeve can be turned over by rotating the shaft, the water inlet and the water outlet can be conveniently fixed by the clamping sleeve, and the annular grooves can be conveniently docked and opened and closed by the snap-fit ​​sleeve, so that the water inlet and the water outlet can be better fixed in position.

[0012] Preferably, the clamping sleeves are movably installed via a rotating shaft, and the clamping sleeves are fixed via a fixed shaft. The fixed shaft can conveniently install the clamping sleeves, making the fixing more stable during installation, and the sliding block moves along the inside of the installation groove, so that the sliding block can move along the first movable rod.

[0013] Preferably, the valve cover and the first screw rod are screwed together by a second threaded sleeve, and a sealing gasket matched with the second threaded sleeve is fixedly installed inside the valve cover. The water flow inside the water inlet is blocked by the blocking block, which better closes the gate valve body, making the gate valve body more efficient during closing, increasing practicality, and the inside of the gate valve body can be conveniently sealed by the sealing gasket, which can conveniently seal the remaining water flow inside to prevent overflow through the top of the valve cover, which can reduce waste caused by overflow during closing and increase convenience during use.

[0014] Preferably, the reverse screw rod and the second movable rod are screw-mounted via a first threaded sleeve, and the first threaded sleeve and the second movable rod are movably mounted via a mounting shaft. The reverse screw rod can conveniently move the first threaded sleeve along the reverse screw rod, and the second movable rod can support the mounting plate during the movement of the first threaded sleeve, so that the second movable rod can rotate around the first movable seat and the mounting shaft.

[0015] Preferably, a fixing sleeve cooperating with the first screw rod is fixedly installed on the top of the valve cover through a flange, the second movable rod is movably installed between the second movable rod and the mounting plate through the first movable seat, and a support column is fixedly installed on the bottom of the mounting seat. During the movement of the first threaded sleeve, the second movable rod can support the mounting plate, and the second movable rod can rotate around the first movable seat and the mounting shaft. The device can be better installed and fixed through the support column, and the device can be better supported, which can increase the stability of the gate valve body when in use.

[0016] Preferably, a second transmission shaft is installed between the reverse screw rods through a second bevel gear set, a first transmission shaft is movably installed at the front end of the mounting seat, the second transmission shaft and the first transmission shaft are installed through the first bevel gear set, and a second turntable is fixedly installed at the front end of the first transmission shaft. The first transmission shaft can conveniently transmit the first bevel gear set, so that the second transmission shaft can be transmitted through the first bevel gear set, so that the reverse screw rod is driven to rotate through the second bevel gear set during the rotation of the second transmission shaft, and the first threaded sleeve can be conveniently moved along the reverse screw rod through the reverse screw rod.

[0017] Preferably, a blocking block cooperating with the flow slot is movably installed at the bottom of the first screw rod, and a first rotating disk is fixedly installed at the top of the first screw rod. During the movement of the first threaded sleeve, the second movable rod can support the mounting plate, so that the second movable rod can rotate around the first movable seat and the mounting shaft, and can move along the reverse screw rod through the second movable rod. The mounting plate can be used to conveniently drive the gate valve body and the bellows to align the operation, which is convenient for the staff to install and connect, reduces the trouble caused by manual lifting, saves time and effort, and improves convenience.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. By providing the sliding block, the first movable rod, the clamping sleeve and the support frame, the water inlet and the water outlet can be fixed by the clamping sleeve, so that the buffer operation can be effectively performed during the closing and opening of the gate valve body to prevent the impact force from being too large and causing damage to the gate valve body due to shaking.

[0020] 2. By setting the mutual cooperation among the mounting plate, the mounting seat, the first transmission rod, the second transmission shaft and the second movable rod, the second movable rod can be moved along the reverse screw rod, and the mounting plate can be used to conveniently drive the gate valve body and the bellows to align the operation, which is convenient for the staff to install and connect, reduces the trouble caused by manual lifting, saves time and effort, and improves convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a first external three-dimensional front view of the present invention;

[0022] Figure 2 It is a second three-dimensional front view of the present invention;

[0023] Figure 3 It is a schematic diagram of the partial internal structure of the gate valve body of the present invention;

[0024] Figure 4 It is a schematic diagram of the local structure of the clamping sleeve of the present invention;

[0025] Figure 5 It is a schematic diagram of the local structure of the present invention;

[0026] Figure 6 It is a schematic diagram of the local structure of the reverse screw rod of the present invention;

[0027] Figure 7 It is a schematic diagram of the partial structure of the first bevel gear set of the present invention.

[0028] In the figure: 1. mounting plate; 101. support column; 102. mounting seat; 103. mounting groove; 104. spring; 105. first movable rod; 106. sliding block; 107. support frame; 108. movable shaft; 109. clamping sleeve; 2. gate valve body; 201. water inlet; 202. water outlet; 203. fixed shaft; 204. valve cover; 205. flange; 206. fixed sleeve; 207. first screw rod; 208. first rotating disk ; 3. Second turntable; 301. First transmission shaft; 302. First movable seat; 303. Second movable rod; 304. Mounting shaft; 305. First threaded sleeve; 306. Reverse screw; 307. First bevel gear set; 308. Second bevel gear set; 309. Second transmission shaft; 4. Circulation groove; 401. Blocking block; 402. Second threaded sleeve; 403. Sealing gasket; 404. Annular groove; 405. Locking sleeve; 406. Rotating shaft. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] Embodiment 1

[0031] like Figure 1-7As shown, an automatic large-caliber fast-cut bellows gate valve proposed by the present invention comprises a mounting plate 1, a gate valve body 2 and a second rotating disk 3, a sliding block 106 is slidably mounted on the top of the mounting plate 1, a support frame 107 is movably mounted on the top of the sliding block 106, a gate valve body 2 is fixedly positioned on the top of the mounting plate 1, a water inlet 201 and a water outlet 202 are fixedly mounted on both sides of the gate valve body 2, a clamping sleeve 109 matching the water inlet 201 and the water outlet 202 is movably mounted on the top of the support frame 107, a valve cover 204 is fixedly mounted on the top of the gate valve body 2, a first screw rod 207 is movably mounted inside the valve cover 204, and the inside of the gate valve body 2 is provided with a A flow slot 4 is provided, a mounting seat 102 is provided at the bottom of the mounting plate 1, a reverse screw rod 306 is movably installed inside the mounting seat 102, a second movable rod 303 is movably installed between the reverse screw rod 306 and the mounting plate 1, the mounting plate 1 and the sliding block 106 are slidably installed through the mounting slot 103, a first movable rod 105 cooperating with the sliding block 106 is fixedly installed inside the mounting slot 103, and a spring 104 is sleeved on the outer side of the first movable rod 105, a clamping sleeve 109 and a supporting frame 107 are movably installed through a movable shaft 108, an annular groove 404 is provided on the outer side of the water inlet 201 and the water outlet 202, and a spring 104 is provided on the inner side of the clamping sleeve 109 to cooperate with the annular groove 404. The valve cover 204 is provided with a first screw rod 207 and a second screw sleeve 402. The valve cover 204 is provided with a first screw sleeve 402. The valve cover 204 is provided with a first screw sleeve 402. The valve cover 204 is provided with a first screw sleeve 402. The valve cover 204 is provided with a first screw sleeve 402. The valve cover 204 is provided with a first screw sleeve 402. The valve cover 204 is provided with a first screw sleeve 402. The valve cover 204 is provided with a first screw sleeve 402. The valve cover 204 is provided with a first screw sleeve 402. The valve cover 204 is provided with a first screw sleeve 402. The valve cover 204 is provided with a first screw sleeve 402. The valve cover 204 is provided with a first screw sleeve 402. The valve cover 204 is provided with a first screw sleeve 402. 6. The second movable rod 303 is movably installed on the mounting plate 1 through the first movable seat 302, the bottom of the mounting seat 102 is fixedly installed with a support column 101, the second transmission shaft 309 is installed between the reverse screw rod 306 through the second bevel gear set 308, the front end of the mounting seat 102 is movably installed with the first transmission shaft 301, the second transmission shaft 309 and the first transmission shaft 301 are installed through the first bevel gear set 307, and the front end of the first transmission shaft 301 is fixedly installed with the second turntable 3, the bottom of the first screw rod 207 is movably installed with a blocking block 401 that cooperates with the circulation slot 4, and the top of the first screw rod 207 is fixedly installed with the first turntable 208.

[0032] The working principle of the automatic large-diameter quick-cut bellows gate valve based on Example 1 is as follows: by rotating the first rotating disk 208, the first rotating disk 208 can rotate along the inside of the fixed sleeve 206, and by rotating the first screw rod 207, the first screw rod 207 can rotate inside the second threaded sleeve 402, so that the blocking block 401 can move along the inside of the flow slot 4, so that the blocking block 401 can conveniently block the water flow entering the water inlet 201, so that the gate valve body 2 can be better closed during the closing process, which can effectively increase the convenience during use and increase practicality;

[0033] The rotating shaft 406 can be used to flip the clamping sleeve 109, and the clamping sleeve 109 can be used to conveniently fix the water inlet 201 and the water outlet 202. The locking sleeve 405 can conveniently dock and open and close the annular groove 404, so that the water inlet 201 and the water outlet 202 can be better fixed in position. The clamping sleeve 109 can be conveniently installed through the fixed shaft 203, so that the fixation during installation is more stable. At the same time, the sliding block 106 can move along the inside of the installation groove 103, so that the sliding block 106 can move along the first The movable rod 105 moves, so that the two sides of the support frame 107 move during the offset and activity. The sliding block 106 can be used to squeeze the spring 104 sleeved on the outside of the first movable rod 105. The sliding block 106 can be easily rebounded by the rebound effect of the spring 104, which can conveniently prevent the gate valve body 2 from shaking due to the impact force generated by the water flow, can effectively buffer and reduce shock, can effectively increase the stability during use, further improve the device when it is offset and can recover, and increase the temperature effect during use;

[0034] By rotating the second turntable 3, the first transmission shaft 301 can be conveniently driven, and the first bevel gear set 307 can be conveniently transmitted through the first transmission shaft 301, so that the second transmission shaft 309 can be transmitted through the first bevel gear set 307, and the second transmission shaft 309 rotates, and the reverse screw rod 306 is driven to rotate through the second bevel gear set 308. The first threaded sleeve 305 can be conveniently moved along the reverse screw rod 306 through the reverse screw rod 306, and the second movable rod 303 can support the mounting plate 1 during the movement of the first threaded sleeve 305, so that the second movable rod 303 can rotate around the first movable seat 302 and the mounting shaft 304, so that the gate valve body 2 can move up and down, making it more convenient to connect the bellows, thereby increasing the convenience during use.

[0035] Embodiment 2

[0036] like Figure 2-7As shown, the present invention proposes an automatic large-diameter quick-cut bellows gate valve. Compared with the first embodiment, this embodiment also includes: a sealing gasket 403 that cooperates with the second threaded sleeve 402 is fixedly installed inside the valve cover 204, a fixing sleeve 206 that cooperates with the first screw rod 207 is fixedly installed on the top of the valve cover 204 through a flange 205, and a support column 101 is fixedly installed on the bottom of the mounting seat 102.

[0037] In this embodiment, the interior of the gate valve body 2 can be conveniently sealed by the sealing gasket 403, and the sealing gasket 403 can conveniently seal the remaining water flow inside to prevent overflow through the top of the valve cover 204, which can reduce waste caused by overflow during closing and increase convenience during use. The flange 205 can conveniently fix the fixing sleeve 206 and the valve cover 204 to prevent displacement and falling off during use, increase structural strength, and increase the effect when connecting. The support column 101 can better install and fix the device, better support the device, and increase the stability of the gate valve body 2 during use.

[0038] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. An automatic large-caliber quick-cut bellows gate valve, comprising a mounting plate (1), a gate valve body (2) and a second rotary disc (3), characterized in that: A sliding block (106) is slidably mounted on the top of the mounting plate (1), a support frame (107) is movably mounted on the top of the sliding block (106), a gate valve body (2) is fixedly positioned on the top of the mounting plate (1), a water inlet (201) and a water outlet (202) are fixedly mounted on both sides of the gate valve body (2), a clamping sleeve (109) cooperating with the water inlet (201) and the water outlet (202) is movably mounted on the top of the support frame (107), a valve cover (204) is fixedly mounted on the top of the gate valve body (2), a first screw rod (207) is movably mounted inside the valve cover (204), and the inner portion of the gate valve body (2) is fixedly mounted with a valve cover (204). A flow groove (4) is provided at the bottom of the mounting plate (1), a mounting seat (102) is provided at the bottom of the mounting plate (1), a reverse screw rod (306) is movably installed inside the mounting seat (102), a second movable rod (303) is movably installed between the reverse screw rod (306) and the mounting plate (1), the mounting plate (1) and the sliding block (106) are slidably installed through the mounting groove (103), a first movable rod (105) cooperating with the sliding block (106) is fixedly installed inside the mounting groove (103), and a spring (104) is sleeved on the outer side of the first movable rod (105), and a movable shaft (108) is movably installed between the clamping sleeve (109) and the support frame (107). The outer sides of the water inlet (201) and the water outlet (202) are both provided with an annular groove (404), and the inner side of the clamping sleeve (109) is provided with a snap-fit ​​sleeve (405) that matches the annular groove (404). The clamping sleeves (109) are movably installed via a rotating shaft (406), and the clamping sleeves (109) are fixed via a fixed shaft (203). The reverse screw rod (306) and the second movable rod (303) are screw-installed via a first threaded sleeve (305), and the first threaded sleeve (305) and the second movable rod (303) are movably installed via an installation shaft (304). The top of the valve cover (204) is fixed via a flange (205). A fixed sleeve (206) matched with the first screw rod (207) is fixedly installed, the second movable rod (303) is movably installed with the mounting plate (1) via a first movable seat (302), a support column (101) is fixedly installed at the bottom of the mounting seat (102), a second transmission shaft (309) is installed between the reverse screw rod (306) via a second bevel gear set (308), the first transmission shaft (301) is movably installed at the front end of the mounting seat (102), the second transmission shaft (309) and the first transmission shaft (301) are installed via a first bevel gear set (307), and a second rotating disk (3) is fixedly installed at the front end of the first transmission shaft (301).

2. According to claim 1, the automatic large-caliber fast-cut bellows gate valve is characterized by: The valve cover (204) and the first screw rod (207) are screw-mounted via a second threaded sleeve (402), and a sealing gasket (403) matching the second threaded sleeve (402) is fixedly mounted inside the valve cover (204).

3. The automatic large-caliber fast-cut bellows gate valve according to claim 1 is characterized by: A blocking block (401) that cooperates with the circulation slot (4) is movably mounted on the bottom of the first screw rod (207), and a first rotating disk (208) is fixedly mounted on the top of the first screw rod (207).

Images