Self-closing gate valve capable of adjusting liquid conveying amount

Abstract

The invention discloses a liquid delivery amount adjustable self-closing gate valve which comprises a pipe gate valve pipe structure, a flow driving adjusting structure is fixedly installed in the pipe gate valve pipe structure, the pipe gate valve pipe structure comprises a gate valve pipe with flange connecting discs at the two ends, and a cavity shell is welded and fixed to the surface of the gate valve pipe. Meanwhile, a bearing barrel is fixedly welded to the upper portion of the cavity shell, a hand wheel rotating rod extending into the cavity shell is arranged in the bearing barrel, a driving shaft with a connecting gear is fixedly welded to the bottom of the hand wheel rotating rod, and meanwhile one end of the driving shaft extends into the gate valve pipe to be rotationally connected; an arc-shaped groove plate is fixedly installed in the gate valve pipe, a circulation groove is formed in the arc-shaped groove plate in a penetrating mode, meanwhile, a valve element with a circulation groove is arranged in the arc-shaped groove plate, the valve element is fixedly connected with the bottom of the driving shaft, and according to the self-closing gate valve capable of adjusting the liquid conveying amount, connecting, fixing and driving are achieved through the arranged driving shaft.

Description

Technical Field

[0001] The present invention relates to the technical field of gate valves, and specifically to an adjustable self-closing gate valve for liquid delivery volume. Background Art

[0002] Gate valves are important components of liquid delivery pipelines. Currently, the designed and manufactured gate valves are just general simple combinations without auxiliary functions. They must be manually operated by human power or other forces when opening and closing. This is the case for both large pipeline main control gate valves and small faucets. They can neither quantitatively control the liquid delivery volume to save resources, nor control the deliberate waste behavior of resources. In fields with high requirements for theoretical control precision, computerized programmed control can be applied, but it requires electrical energy and has high energy consumption, and the equipment investment is large, which is not suitable for ordinary fields with general control requirements. Summary of the Invention

[0003] The purpose of the present invention is to provide an adjustable self-closing gate valve for liquid delivery volume in view of the deficiencies of the prior art, so as to solve the problems put forward in the above background art that when opening and closing, it must be manually operated by human power or other forces. This is the case for both large pipeline main control gate valves and small faucets. They can neither quantitatively control the liquid delivery volume to save resources, nor control the deliberate waste behavior of resources. In fields with high requirements for theoretical control precision, computerized programmed control can be applied, but it requires electrical energy and has high energy consumption, and the equipment investment is large, which is not suitable for ordinary fields with general control requirements.

[0004] To achieve the above purpose, the present invention provides the following technical solution: An adjustable self-closing gate valve for liquid delivery volume, including a pipe gate valve pipe structure, and a flow driving and adjusting structure is fixedly installed inside the pipe gate valve pipe structure;

[0005] The pipe gate valve pipe structure includes a gate valve pipe with flange connection discs at both ends, and a cavity shell is fixedly welded on the surface of the gate valve pipe. At the same time, a bearing cylinder is fixedly welded and installed above the cavity shell;

[0006] A handwheel rotating rod extending into the cavity shell is arranged inside the bearing cylinder, and a driving shaft with a connecting gear is fixedly welded at the bottom of the handwheel rotating rod. At the same time, one end of the driving shaft extends into the gate valve pipe and is rotationally connected.

[0007] By adopting the above technical solution, the driving shaft is set to play a role in connecting and fixing and driving.

[0008] Preferably, an arc-shaped groove plate is fixedly installed inside the gate valve pipe, and a flow-through groove is penetrated through the arc-shaped groove plate. At the same time, a valve core with a flow-through groove is also arranged inside the arc-shaped groove plate, and the valve core is fixedly connected to the bottom of the driving shaft.

[0009] By adopting the above technical solution, the arc-shaped groove is provided to achieve the wrapping and relative rotation adjustment.

[0010] Preferably, a branch pipe is embedded and installed through the bottom of the gate valve pipe, and a through-hole disc is fixedly installed inside the branch pipe. At the same time, a concave-hole seat with a torsion spring inside is fixedly installed on one side of the through-hole disc. A baffle plate covering and connecting with the through-hole disc is rotatably installed inside the concave-hole seat through the torsion spring and a connecting shaft.

[0011] By adopting the above technical solution, the baffle plate is provided to achieve the small-flow blocking.

[0012] Preferably, the flow driving and adjusting structure includes a through-hole cavity box body with a hollow structure inside. A through groove with a guiding sliding groove is penetrated and opened on one side of the through-hole cavity box body. At the same time, the through-hole cavity box body is fixed inside the gate valve pipe, and the bottom of the through-hole cavity box body is connected with the branch pipe through a through connection for conveying.

[0013] By adopting the above technical solution, the through-hole cavity box body is provided to achieve the fixing and opening.

[0014] Preferably, a movable connecting rod penetrates through the inside of the through-hole cavity box body. A through-hole concave block is fixedly installed on the surface of the movable connecting rod. At the same time, the through-hole concave block is rotatably connected with an adjusting baffle plate through a connecting pin and a double-hole connecting plate. The adjusting baffle plate is movably arranged inside the through groove through a guiding slide bar.

[0015] By adopting the above technical solution, the movable connecting rod is provided to achieve the movable sliding adjustment.

[0016] Preferably, a push plate is fixedly installed at one end of the movable connecting rod. The other end of the movable connecting rod penetrates through a through cylinder to a through-hole push plate. At the same time, the through-hole push plate is in contact connection with one end of a connecting spring. The other end of the connecting spring is fixedly connected with the inner wall of the through cylinder, and the through cylinder is fixedly installed inside the gate valve pipe.

[0017] By adopting the above technical solution, the push plate is provided to achieve the liquid pushing adjustment.

[0018] Preferably, the other end of the movable connecting rod penetrates through the gate valve pipe and extends into the cavity shell. A rack is fixedly installed on the inner side of the movable connecting rod. At the same time, the rack is meshed with a connecting gear.

[0019] By adopting the above technical solution, the rack is provided to achieve the rotation and meshing drive adjustment.

[0020] Preferably, 2 groups of flow-through grooves are opened, and the flow-through grooves are arranged in a rotational docking manner.

[0021] By adopting the above technical solution, the opened flow-through grooves are provided to achieve the rotational docking to control the flow rate.

[0022] Preferably, 4 through grooves are provided, and the through grooves are symmetrically provided on the surface of the through hole cavity box body.

[0023] By adopting the above technical solution, the through grooves provided play a role in sliding opening and closing.

[0024] Compared with the prior art, the beneficial effects of the present invention are: for this liquid delivery volume adjustable self-closing gate valve,

[0025] (1) In this case, through the set pipe gate valve pipe structure, the problem that manual or other forces must be used for operation during both opening and closing is solved. Whether it is the main control gate valve of the pipeline or the faucet, it is the same. It can neither quantitatively control the liquid delivery volume and save resources, nor control the deliberate waste behavior of resources. In fields with high requirements for theoretical control fineness, computer program control can be applied, but it requires electric energy and high energy consumption, and the equipment investment is large, which is not suitable for general control requirements in ordinary fields. When the flow rate inside the gate valve pipe is too large, at this time, the liquid pushes the movable connecting rod to drive the driving shaft to rotate. When the driving shaft rotates under force, it drives the handwheel threaded rod and the valve core to rotate synchronously under force. When the valve core rotates under force, when the flow groove on the surface of the valve core gradually rotates and overlaps with the flow groove on the inner wall of the arc-shaped groove plate, the liquid with different delivery volumes is opened and transported;

[0026] (2) Through the set flow rate driving and adjusting structure, the above problems are solved. When the liquid is transported inside the gate valve pipe, at this time, the liquid pushes the movable connecting rod to move. When the movable connecting rod moves under force, it drives the adjusting baffle to slide through the double-hole connecting plate. When the adjusting baffle slides, the through groove is opened to facilitate the rapid flow of liquid with different flow rates, and also through the connecting spring provided in the flow rate driving and adjusting structure, the opened adjusting baffle and the valve core are automatically closed, thus avoiding the situation that manual closing is required after opening;

[0027] (3) Through the branch pipe, through hole disc, concave hole seat, and baffle provided in the pipe gate valve pipe structure, the problem that small-flow liquid cannot be transported when it cannot push the baffle is solved. When small-flow liquid is transported, after being transported into the branch pipe through the adjusting baffle, it is directly transported into the gate valve pipe through the branch pipe for transportation, thus avoiding the need for small-flow liquid to pass through the valve core for transportation. And when the branch pipe is set with a thick and thin pipe structure, it is convenient for large-flow liquid to not only share the transportation pressure of the branch pipe when passing through the branch pipe, but also because the side branch of the branch pipe is thin, a large amount of flowing liquid converges and is transported into the gate valve pipe through the thick branch pipe and is adjusted and transported through the valve core;

[0028] (4) Through the bearing cylinder and the handwheel rotating rod provided in the pipe gate valve pipe structure, the structure of manual operation is retained, which also avoids the problem that when the automatic opening and closing structure fails, manual maintenance cannot be carried out immediately, resulting in excessive internal pressure in the gate valve pipe and accidents. Brief Description of the Drawings

[0029] Figure 1 Schematic front sectional structure view of the present invention;

[0030] Figure 2 Schematic structure view of the gate valve pipe, cavity housing, bearing cylinder, handwheel rotating rod, driving shaft, connecting gear, arc-shaped groove plate, flow-through groove, valve core and branch pipe of the present invention;

[0031] Figure 3 Schematic structure view of the arc-shaped groove plate and the flow-through groove of the present invention;

[0032] Figure 4 For the present invention Figure 3 Enlarged structure view at A in;

[0033] Figure 5 Schematic structure view of the through-hole cavity box body, movable connecting rod, through-hole concave block, double-hole connecting plate, adjusting baffle, push plate, through-tube, through-hole push plate and connecting spring of the present invention;

[0034] Figure 6 Schematic partial structure view of the through-hole cavity box body of the present invention;

[0035] Figure 7 For the present invention Figure 6 Enlarged structure view at B in;

[0036] Figure 8 Schematic structure view of the adjusting baffle and the guiding slide bar of the present invention;

[0037] Figure 9 Schematic structure view of the rack of the present invention.

[0038] In the figure: 1. Pipe gate valve pipe structure; 101. Gate valve pipe; 102. Cavity housing; 103. Bearing cylinder; 104. Handwheel rotating rod; 105. Driving shaft; 106. Connecting gear; 107. Arc-shaped groove plate; 108. Flow-through groove; 109. Valve core; 1010. Branch pipe; 1011. Through-hole disk; 1012. Concave hole seat; 1013. Baffle; 2. Flow driving and adjusting structure; 201. Through-hole cavity box body; 202. Through groove; 203. Guiding sliding groove; 204. Movable connecting rod; 205. Through-hole concave block; 206. Double-hole connecting plate; 207. Adjusting baffle; 208. Guiding slide bar; 209. Push plate; 2010. Through-tube; 2011. Through-hole push plate; 2012. Connecting spring; 2013. Rack. Detailed implementation mode

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0040] Please refer to Figures 1-9 , the present invention provides a technical solution: an adjustable self-closing gate valve for liquid delivery volume, as Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, including a pipe gate valve pipe structure 1. The pipe gate valve pipe structure 1 includes a gate valve pipe 101 with flange connection plates at both ends. A cavity housing 102 is welded and fixed on the surface of the gate valve pipe 101. At the same time, a bearing cylinder 103 is welded and fixed above the cavity housing 102. A handwheel rotating rod 104 extending into the cavity housing 102 is arranged inside the bearing cylinder 103. A driving shaft 105 with a connecting gear 106 is welded and fixed at the bottom of the handwheel rotating rod 104. One end of the driving shaft 105 extends into the gate valve pipe 101 and is rotationally connected. Among them, the above components constitute a rotational adjustment structure. When using the rotational adjustment structure composed of the above components, the rotation direction of the valve core 109 can be effectively changed, thus facilitating the control of the liquid flow rate.

[0041] Further, in the above solution, an arc-shaped groove plate 107 is fixedly installed inside the gate valve pipe 101. A flow channel 108 is penetrated through the arc-shaped groove plate 107. At the same time, a valve core 109 with a flow channel 108 is arranged inside the arc-shaped groove plate 107. Two groups of flow channels 108 are provided, and the flow channels 108 are arranged in a rotational docking manner. When two groups of four flow channels 108 are provided through the above structure, it not only reflects the practicability of the above structure, but also reflects the rotational step-by-step docking and overlapping of the above structure. At the same time, when two groups of four flow channels 108 are provided through the above structure, the relative rotational adjustment of the above structure is reflected. The valve core 109 is fixedly connected to the bottom of the driving shaft 105.

[0042] Furthermore, in the above solution, a branch pipe 1010 is embedded and installed through the bottom of the gate valve pipe 101, and a through-hole disc 1011 is fixedly installed inside the branch pipe 1010. At the same time, a concave hole seat 1012 with a torsion spring inside is fixedly installed on one side of the through-hole disc 1011. Inside the concave hole seat 1012, a baffle 1013 covering and connecting with the through-hole disc 1011 is rotatably installed through the torsion spring and a connecting shaft. Among them, the above components constitute an elastic rotation adjustment structure. When using the elastic rotation adjustment structure composed of the above components, it can effectively intercept the small-flow liquid transportation, make the small-flow liquid change the transportation route to avoid the small-flow liquid passing through the valve core 109 for adjustment and transportation. And the branch pipe 1010 also has a water storage effect, avoiding the problem of frequent flow discharge of small-flow liquid. By setting the branch pipe 1010, the flowing small-flow liquid is stored in the water storage. When the small-flow liquid is stored at a certain pressure, the small-flow liquid is extruded into the gate valve pipe 101 through the pressure for transportation and discharge.

[0043] As Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 shown, a flow driving and adjusting structure 2 is fixedly installed inside the pipe gate valve pipe structure 1. The flow driving and adjusting structure 2 includes a through-hole cavity box body 201 with a hollow structure inside. And a through groove 202 with a guiding sliding groove 203 is penetrated and opened on one side of the through-hole cavity box body 201. There are 4 through grooves 202, and the through grooves 202 are symmetrically opened on the surface of the through-hole cavity box body 201. By opening 4 through grooves through the above structure, when using the above structure to open 4 through grooves, it not only reflects the practicality of the opening and setting of the above structure, but also reflects the symmetry and inner guiding sliding property of the opening and setting of the above structure. And when opening 4 through grooves through the above structure, it also reflects the beauty of the above structure at the same time. At the same time, the through-hole cavity box body 201 is fixed inside the gate valve pipe 101, and the bottom of the through-hole cavity box body 201 is connected with the branch pipe 1010 in a through transportation manner.

[0044] Furthermore, in the above solution, a movable connecting rod 204 is disposed through the inside of the through-hole cavity box body 201, and a through-hole concave block 205 is fixedly installed on the surface of the movable connecting rod 204. At the same time, the through-hole concave block 205 is rotatably connected to the adjusting baffle 207 through a connecting pin and a double-hole connecting plate 206. The adjusting baffle 207 is movably disposed inside the through groove 202 through a guiding slide bar 208. Among them, the above-mentioned components constitute a pushing and sliding structure. When using the pushing and sliding structure composed of the above-mentioned components, it not only reflects the pushing and sliding property of the installation of the above-mentioned structure, but also reflects the synchronous pushing and sliding adjustment property of the above-mentioned components. And the movable connecting rod 204 is arranged in sections. When the movable connecting rod 204 is arranged in sections, it is ensured that only small-flow liquid can push the adjusting baffle 207 to slide and cannot push the connecting spring 2012 to move, so that the small-flow liquid does not pass through the valve core 109. At the same time, the other section of the movable connecting rod 204 is fixedly connected to the inside of the connecting spring 2012, so as to ensure that when the connecting spring 2012 elastically recovers, it drives the other section of the movable connecting rod 204 to move synchronously under force.

[0045] Furthermore, in the above solution, a pushing plate 209 is fixedly installed at one end of the movable connecting rod 204, and the other end of the movable connecting rod 204 passes through the through cylinder 2010 and the through-hole pushing plate 2011. At the same time, the through-hole pushing plate 2011 is in contact connection with one end of the connecting spring 2012, and the other end of the connecting spring 2012 is fixedly connected to the inner wall of the through cylinder 2010. And the through cylinder 2010 is fixedly installed inside the gate valve pipe 101. The other end of the movable connecting rod 204 passes through the gate valve pipe 101 and extends into the cavity shell 102. And a rack 2013 is fixedly installed on the inner side of the movable connecting rod 204. At the same time, the rack 2013 is meshed with the connecting gear 106. Among them, the above-mentioned components constitute a synchronous pushing and adjusting structure. When using the synchronous pushing and adjusting structure composed of the above-mentioned components, it effectively drives the rack 2013 to move under force synchronously, and then drives the connecting gear 106 to rotate and adjust synchronously under force. When the connecting gear 106 rotates and adjusts synchronously under force, it drives the valve core 109 to rotate at the same time to control the size of the flow delivery.

[0046] In the above solution, when a small flow of liquid is conveyed inside the gate valve pipe 101, the driving push plate 209 is forced to move. When the push plate 209 moves under force, it synchronously drives the adjusting baffle 207 to slide inside the through groove 202 through the movable connecting rod 204, the through-hole concave block 205, and the double-hole connecting plate 206. When the through groove 202 is opened, the small flow of liquid is conveyed into the through-hole cavity box body 201 and discharged into the branch pipe 1010. When the small flow of liquid entering the branch pipe 1010 cannot push the baffle 1013, the small flow of liquid is conveyed through the side pipe of the branch pipe 1010 and discharged inside the gate valve pipe 101. When a large flow of liquid also pushes open the adjusting baffle 207 and is conveyed into the through-hole cavity box body 201 and then conveyed into the branch pipe 1010 again, at this time, the large flow of liquid pushes open the baffle 1013 and is conveyed inside the gate valve pipe 101. At the same time, when the baffle 1013 is pushed open, the movable connecting rod 204 synchronously drives the rack 2013 to move under force. When the rack 2013 moves under force, it drives the driving shaft 105 and the valve core 109 to rotate synchronously under force through the connecting gear 106. At this time, when the valve core 109 rotates relative to the arc-shaped groove plate 107, the overlapping flow-through groove 108 enables the flow of liquid to be automatically adjusted and controlled for discharge. At the same time, when no liquid is conveyed, the connecting spring 2012 elastically recovers, so that the adjusting baffle 207 and the valve core 109 are adjusted and closed.

[0047] The orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only a simplified description for facilitating the description of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation on the protected content of the present invention.

[0048] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A self-closing gate valve with adjustable liquid delivery volume, characterized in that: It comprises a pipe gate valve pipe structure (1), wherein a flow drive regulating structure (2) is fixedly installed inside the pipe gate valve pipe structure (1); The gate valve pipe structure (1) comprises a gate valve pipe (101) with flange connection plates at both ends, and a cavity shell (102) is welded and fixed on the surface of the gate valve pipe (101), and a bearing cylinder (103) is welded and fixed on the top of the cavity shell (102); A handwheel rotating rod (104) extending inside the cavity shell (102) is provided inside the bearing cylinder (103), and a driving shaft (105) with a connecting gear (106) is welded and fixedly installed at the bottom of the handwheel rotating rod (104), and one end of the driving shaft (105) extends inside the gate valve tube (101) for rotational connection.

2. A self-closing gate valve with adjustable liquid delivery volume according to claim 1, characterized in that: An arc-shaped groove plate (107) is fixedly installed inside the gate valve tube (101), and a flow groove (108) is opened through the arc-shaped groove plate (107). At the same time, a valve core (109) with a flow groove (108) is provided inside the arc-shaped groove plate (107), and the valve core (109) is fixedly connected to the bottom of the driving shaft (105).

3. According to claim 1, a self-closing gate valve with adjustable liquid delivery volume, characterized in that: The bottom of the gate valve tube (101) is inlaid with a branch pipe (1010) which is installed through the branch pipe (1010), and a through-hole disk (1011) is fixedly installed inside the branch pipe (1010). At the same time, a concave hole seat (1012) with an internal torsion spring is fixedly installed on one side of the through-hole disk (1011), and a baffle (1013) which is covered and connected to the through-hole disk (1011) is rotatably installed inside the concave hole seat (1012) via a torsion spring and a connecting shaft.

4. The self-closing gate valve with adjustable liquid delivery volume according to claim 1, characterized in that: The flow drive regulating structure (2) comprises a through-hole cavity box (201) with a hollow structure inside, and a through groove (202) with a guide sliding groove (203) is provided through one side of the through-hole cavity box (201). At the same time, the through-hole cavity box (201) is fixed inside the gate valve pipe (101), and the bottom of the through-hole cavity box (201) is connected to the branch pipe (1010) for through-transmission.

5. A self-closing gate valve with adjustable liquid delivery volume according to claim 4, characterized in that: A movable connecting rod (204) is provided inside the through-hole cavity box (201), and a through-hole recess block (205) is fixedly installed on the surface of the movable connecting rod (204). At the same time, the through-hole recess block (205) is rotatably connected to the adjustment baffle (207) through a connecting pin and a double-hole connecting plate (206), and the adjustment baffle (207) is movably arranged inside the through groove (202) through a guide slide bar (208).

6. A self-closing gate valve with adjustable liquid delivery volume according to claim 5, characterized in that: A push plate (209) is fixedly mounted on one end of the movable connecting rod (204), and the other end of the movable connecting rod (204) passes through the through-tube (2010) and the through-hole push plate (2011), while the through-hole push plate (2011) is in contact with one end of a connecting spring (2012), and the other end of the connecting spring (2012) is fixedly connected to the inner wall of the through-tube (2010), and the through-tube (2010) is fixedly mounted inside the gate valve tube (101).

7. The self-closing gate valve with adjustable liquid delivery volume according to claim 5, characterized in that: The other end of the movable connecting rod (204) passes through the gate valve tube (101) and extends into the interior of the cavity shell (102), and a rack (2013) is fixedly installed on the inner side of the movable connecting rod (204), and the rack (2013) is meshedly connected with the connecting gear (106).

8. The self-closing gate valve with adjustable liquid delivery volume according to claim 2, characterized in that: The circulation grooves (108) are provided in two groups, and the circulation grooves (108) are arranged in a rotationally docking manner.

9. The self-closing gate valve with adjustable liquid delivery volume according to claim 4, characterized in that: The through grooves (202) are provided in four numbers, and the through grooves (202) are symmetrically arranged with respect to the surface of the through hole cavity box body (201).

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