Combined control valve

Abstract

The utility model provides a combined control valve. The combined control valve comprises a valve body, a first liquid outlet pipe and a second liquid outlet pipe are fixedly installed on the top of the valve body, a valve element is installed in the valve body in a sliding mode, a liquid conveying groove is formed in the valve element, a liquid outlet hole is formed in the valve element, the liquid conveying groove is communicated with the liquid outlet hole, an annular groove is formed in the outer wall of the valve element, and the annular groove is communicated with the liquid outlet hole. The annular groove is located between the first liquid outlet pipe and the second liquid outlet pipe, a first mounting plate is mounted on one side of the valve body, and a liquid inlet pipe is fixedly mounted on the first mounting plate. The combined control valve provided by the utility model has the advantages that the control valve can be quickly assembled when the control valve is used, and the response speed of the control valve can be improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to control valve technical field, especially relate to a combined control valve. BACKGROUND

[0002] Control valve is composed of two main combined parts: valve body assembly and actuator assembly (or actuator system), and is divided into four series: single seat series control valve, double seat series control valve, sleeve series control valve and self force type series control valve. Variants of the four types of valves can result in many different applicable structures, and each structure has its special application, characteristics, advantages and disadvantages.

[0003] The existing control valve is mostly modular production, and the valve is assembled during use. However, the existing control valve is troublesome to assemble, and the hydraulic oil flows slowly during hydraulic control, which leads to slow response speed of the control valve and is inconvenient.

[0004] Therefore, it is necessary to provide a new combined control valve to solve the above technical problems. INVENTION CONTENTS

[0005] The utility model solves the technical problem that a combined control valve can be quickly assembled during use of the control valve, and the response speed of the control valve can be improved.

[0006] To solve the above technical problems, the combined control valve provided by the utility model comprises a valve body, a first liquid outlet pipe and a second liquid outlet pipe are fixedly installed on the top of the valve body, a valve core is slidably installed in the valve body, a liquid conveying groove is formed in the valve core, a liquid outlet hole is formed in the valve core, the liquid conveying groove and the liquid outlet hole are in communication, an annular groove is formed in the outer wall of the valve core, the annular groove is located between the first liquid outlet pipe and the second liquid outlet pipe, a first mounting plate is installed on one side of the valve body, and a liquid inlet pipe is fixedly installed on the first mounting plate.

[0007] As a further scheme of the utility model, a second mounting plate is installed on one side of the valve body, a hollow column is fixedly installed on the second mounting plate, a piston is slidably installed in the hollow column, reset springs are fixedly installed on both sides of the piston, the mutually remote ends of the two reset springs are fixedly connected with the inner wall of the hollow column, a connecting rod is fixedly installed on the piston, one end of the connecting rod extends into the valve body, and a hydraulic oil inlet pipe and a hydraulic oil outlet pipe are fixedly installed on the outer wall of the hollow column.

[0008] As a further scheme of the utility model, an internal thread ring is fixedly installed on the outer wall of the valve core, an external thread is arranged at one end of the connecting rod, the connecting rod is screwed with the internal thread ring, and a positioning bolt is screwed on the internal thread ring.

[0009] As a further scheme of the utility model, four first fastening bolts are fixedly installed on the first mounting plate, four second fastening bolts are fixedly installed on the second mounting plate, and the first fastening bolts and the second fastening bolts are all in threaded connection with the valve body.

[0010] As a further scheme of the utility model, annular sealing gaskets are installed on the first mounting plate and the second mounting plate, and one side of the two annular sealing gaskets is in contact with the valve body.

[0011] As a further scheme of the utility model, a positioning slot is formed at the top of the connecting rod, and the bottom end of the positioning bolt extends into the positioning slot and is matched with the positioning slot.

[0012] Compared with the related art, the combined control valve has the following beneficial effects:

[0013] The utility model can quickly assemble the control valve in use, has simple structure and is convenient to assemble, and the flow-out and flow-in speed of the hydraulic oil in the hollow column can be accelerated through the elastic force of the reset spring, so that the response speed of the control valve can be improved when closing the valve. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in combination with the drawings.

[0015] Figure 1 The overall structure schematic view of the combined control valve provided by the utility model is shown in the figure.

[0016] Figure 2 The cross-sectional structure schematic view of the combined control valve provided by the utility model is shown in the figure.

[0017] Figure 3 The Figure 2 The enlarged structure schematic view of the middle A part is shown in the figure.

[0018] Figure 4 The partial cross-sectional structure schematic view of the combined control valve provided by the utility model is shown in the figure.

[0019] In the figure: 1, valve body; 2, first liquid outlet pipe; 3, second liquid outlet pipe; 4, valve core; 5, liquid conveying groove; 6, liquid outlet hole; 7, annular groove; 8, first mounting plate; 9, liquid inlet pipe; 10, second mounting plate; 11, hollow column; 12, piston; 13, reset spring; 14, connecting rod; 15, hydraulic oil inlet pipe; 16, hydraulic oil outlet pipe; 17, internal thread ring; 18, positioning bolt; 19, first fastening bolt; 20, second fastening bolt. DETAILED DESCRIPTION

[0020] Please refer to Figure 1 ,Figure 2 、 Figure 3 and Figure 4 wherein, Figure 1 is the overall structure schematic diagram of the combined control valve provided by the utility model; Figure 2 is the sectional structure schematic diagram of the combined control valve provided by the utility model; Figure 3 is Figure 2 the enlarged structure schematic diagram of part A; Figure 4 is the partial sectional structure schematic diagram of the combined control valve provided by the utility model. The combined control valve comprises: a valve body 1, a first liquid outlet pipe 2 and a second liquid outlet pipe 3 are fixedly installed on the top of the valve body 1, a valve core 4 is slidably installed in the valve body 1, a liquid conveying groove 5 is formed in the valve core 4, a liquid outlet hole 6 is formed in the valve core 4, the liquid conveying groove 5 and the liquid outlet hole 6 are communicated, an annular groove 7 is formed in the outer wall of the valve core 4, the annular groove 7 is located between the first liquid outlet pipe 2 and the second liquid outlet pipe 3, a first mounting plate 8 is installed on one side of the valve body 1, and a liquid inlet pipe 9 is fixedly installed on the first mounting plate 8.

[0021] As Figure 4 shown, a second mounting plate 10 is installed on one side of the valve body 1, a hollow column 11 is fixedly installed on the second mounting plate 10, a piston 12 is slidably installed in the hollow column 11, reset springs 13 are fixedly installed on the two sides of the piston 12, the mutually faraway ends of the two reset springs 13 are fixedly connected with the inner wall of the hollow column 11, a connecting rod 14 is fixedly installed on the piston 12, one end of the connecting rod 14 extends into the valve body 1, and a hydraulic oil inlet pipe 15 and a hydraulic oil outlet pipe 16 are fixedly installed on the outer wall of the hollow column 11.

[0022] By arranging the second mounting plate 10, the hollow column 11, the piston 12, the reset springs 13, the connecting rod 14, the hydraulic oil inlet pipe 15 and the hydraulic oil outlet pipe 16, a hydraulic execution module is formed, and the control valve can be driven.

[0023] As Figure 3 shown, an internally threaded ring 17 is fixedly installed on the outer wall of the valve core 4, one end of the connecting rod 14 is provided with external threads, the connecting rod 14 is screwed with the internally threaded ring 17, and a positioning bolt 18 is screwed on the internally threaded ring 17.

[0024] By arranging the internally threaded ring 17 and the positioning bolt 18, the connecting rod 14 and the valve body 1 can be connected, and the valve core 4 is driven to slide in the valve body 1 through the connecting rod 14.

[0025] As Figure 2As shown, the first mounting plate 8 is fixedly provided with four first fastening bolts 19, and the second mounting plate 10 is fixedly provided with four second fastening bolts 20, the first fastening bolts 19 and the second fastening bolts 20 are in threaded connection with the valve body 1.

[0026] By arranging the first fastening bolts 19 and the second fastening bolts 20, the first mounting plate 8 and the second mounting plate 10 can be mounted on the valve body 1 when the control valve is assembled.

[0027] As shown, Figure 2 The first mounting plate 8 and the second mounting plate 10 are both provided with annular sealing pads, and one side of the two annular sealing pads is in contact with the valve body 1.

[0028] By arranging the annular sealing pads, the sealing performance of the connection between the first mounting plate 8 and the second mounting plate 10 and the valve body 1 can be improved after the first mounting plate 8 and the second mounting plate 10 are mounted, so that liquid leakage is avoided.

[0029] As shown, Figure 3 And Figure 4 The top of the connecting rod 14 is provided with a positioning groove, and the bottom end of the positioning bolt 18 extends into the positioning groove and is matched with the positioning groove.

[0030] By arranging the positioning groove, the positioning bolt 18 can be conveniently inserted into the positioning groove, and relative rotation between the connecting rod 14 and the internal thread ring 17 is avoided, so that the connecting rod 14 is separated from the internal thread ring 17.

[0031] The working principle of the combined control valve is as follows:

[0032] During assembly, the first mounting plate 8 is attached to the valve body 1, the first fastening bolts 19 pass through the first mounting plate 8 and are screwed into the valve body 1, the first mounting plate 8 is mounted on the valve body 1, the connecting rod 14 is screwed into the internal thread ring 17, the positioning bolt 18 is screwed into the internal thread ring 17, and the positioning bolt 18 is inserted into the positioning hole in the connecting rod 14, so that the connecting rod 14 is connected with the valve core 4, at this time, the valve core 4 is placed in the valve body 1, then the second mounting plate 10 is mounted on the valve body 1 through the second fastening bolts 20, and the assembly of the control valve is completed.

[0033] In use, the initial position of the annular groove 7 is between the first liquid outlet pipe 2 and the second liquid outlet pipe 3, at this time, the control valve is in the closed state, when it is needed to discharge the medium from the first liquid outlet pipe 2, hydraulic oil is injected into the hollow column 11 through the hydraulic oil inlet pipe 15 to make the piston 12 move to the right, the piston 12 drives the connecting rod 14 and the valve core 4 to move to the right, so that the second liquid outlet pipe 3 is opposite to the annular groove 7, at this time, the medium can be discharged from the second liquid outlet pipe 3, when it is needed to discharge the medium from the first liquid outlet pipe 2, the hydraulic oil in the hollow column 11 is pumped out through the hydraulic oil outlet pipe 16, so that the piston 12 moves to the left, the piston 12 drives the connecting rod 14 and the valve core 4 to move, so that the first liquid outlet pipe 2 is opposite to the annular groove 7, at this time, the medium can be discharged from the first liquid outlet pipe 2.

[0034] It should be noted that the device structure and the drawings of the utility model mainly describe the principle of the utility model, and the setting of the power mechanism, the power supply system and the control system of the device is not completely described in the technical principle of the design, and under the premise that the above-mentioned principle of the utility model is understood by the person skilled in the art, the specific of the power mechanism, the power supply system and the control system can be clearly known, and the control mode of the application file is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the person skilled in the art;

[0035] The standard parts used can be purchased from the market, and can be ordered according to the description and drawings, and the specific connection mode of each part adopts the conventional bolt, rivet, welding and other conventional means in the prior art, the mechanical parts and equipment adopt the conventional type in the prior art, and the components known by the person skilled in the art, the structure and principle thereof can be known by the person skilled in the art through the technical manual or through the conventional experimental method.

[0036] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations or direct or indirect application can be made to these embodiments without departing from the principle and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents, and the same reason includes the patent protection range of the utility model.

Claims

1. A combination control valve characterized by, Include: Valve body, the top of the valve body is fixedly installed with first liquid outlet pipe and second liquid outlet pipe, the valve core is slidably installed in the valve body, the liquid delivery groove is opened in the valve core, the liquid outlet hole is opened in the valve core, the liquid delivery groove and the liquid outlet hole are communicated, the annular groove is opened in the outer wall of the valve core, the annular groove is located between the first liquid outlet pipe and the second liquid outlet pipe, the first mounting plate is installed on one side of the valve body, the liquid inlet pipe is fixedly installed on the first mounting plate.

2. The combination control valve of claim 1, wherein: One side of the valve body is provided with a second mounting plate, a hollow column is fixedly installed on the second mounting plate, a piston is slidably installed in the hollow column, reset springs are fixedly installed on both sides of the piston, the mutually remote ends of the two reset springs are fixedly connected with the inner wall of the hollow column, a connecting rod is fixedly installed on the piston, one end of the connecting rod extends into the valve body, hydraulic oil inlet pipe and hydraulic oil outlet pipe are fixedly installed on the outer wall of the hollow column. The outer wall of the valve core is fixedly installed with an internal thread ring, one end of the connecting rod is provided with an external thread, the connecting rod is screwed with the internal thread ring, the internal thread ring is screwed with a positioning bolt.

3. The combination control valve of claim 2, wherein: Four first fastening bolts are fixedly installed on the first mounting plate, four second fastening bolts are fixedly installed on the second mounting plate, the first fastening bolts and the second fastening bolts are screwed with the valve body.

4. The combination control valve of claim 1, wherein: The first mounting plate and the second mounting plate are both provided with annular sealing pads, one side of the two annular sealing pads is in contact with the valve body.

5. The combination control valve of claim 2, wherein: The top of the connecting rod is provided with a positioning groove, the bottom end of the positioning bolt extends into the positioning groove and is matched with the positioning groove.

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