Quick reversing structure of multi-way reversing valve

Abstract

The utility model discloses a multi-way reversing valve quick reversing structure, and particularly relates to the technical field of reversing valves, the multi-way reversing valve quick reversing structure comprises a lower valve plate and an upper valve plate, the lower valve plate and the upper valve plate are connected to form a sealing valve body, a driving box is installed on one side of the sealing valve body, a valve cavity is formed in the sealing valve body, a valve rod is installed in the valve cavity, and the driving box is installed on the other side of the sealing valve body. A plurality of valve plugs are installed on the valve rod, one end of the valve rod is connected with a toothed plate arranged in the driving box, the bottom end of the toothed plate is in sliding connection with a sliding rail, the top end of the toothed plate is in meshed connection with the driving assembly, and a supporting seat is arranged at one end of the driving assembly; a valve plug arranged at one end of the valve rod is matched with the upper valve plate to divide the valve cavity into a pressure measuring cavity, and a pressure sensor installed on the upper valve plate is arranged on one side of the pressure measuring cavity. The reversing valve has the advantages of being efficient in reversing, reliable in sealing, accurate in detection and capable of effectively improving the performance of the reversing valve.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of reversing valve, more specifically, the utility model relates to multi -way reversing valve quick reversing structure. BACKGROUND

[0002] In the modern mechanical equipment operation system, as the core component of controlling fluid flow direction and flow, the performance of reversing valve plays a decisive role on the overall efficiency of the equipment.

[0003] In various mechanical processing equipment fields, such as numerical control machine tool, metal cutting machine tool, etc., the drawbacks of traditional multi -way reversing valve are more and more prominent. The machining process of machine tool needs to frequently switch the flow direction of cooling liquid, lubricating oil and other fluids to meet the precise demand of cooling and lubricating position in different processing procedures. However, the manual operation characteristics of traditional reversing valve make the reversing operation time-consuming, which seriously reduces the automatic processing efficiency of machine tool and increases the labor intensity and operation difficulty of operators.

[0004] For heavy machinery equipment, such as mining machinery, construction machinery, the harsh working environment of equipment poses a severe challenge to the sealing performance of reversing valve. Dust and sand in construction site easily invade the internal part of reversing valve, which aggravates the wear of sealing components. The relatively weak sealing design of traditional reversing valve frequently appears medium leakage under the influence of mechanical vibration, high pressure impact and impurity erosion. This not only causes the waste of expensive working medium, but also causes the instability of equipment hydraulic or lubricating system pressure, which further affects the accuracy of equipment power transmission and action execution, increases the probability of equipment failure, and even may cause damage to key components, making the equipment in long-term downtime maintenance state, which greatly affects the engineering progress and production efficiency.

[0005] Moreover, in the production and assembly process of mechanical equipment, the traditional reversing valve detection means has been difficult to adapt to modern high-precision production standards. Due to the lack of effective real-time monitoring and accurate detection technology, it is difficult to quickly and accurately identify the potential sealing defects and reversing dysfunction of reversing valve in the assembly link, which causes a large number of reversing valves with hidden dangers to be installed in the equipment, which lays many uncertain factors for the stable operation of the equipment, increases the equipment debugging cycle and after-sales maintenance cost, and reduces the market competitiveness of mechanical equipment manufacturing enterprises.

[0006] Therefore, the multi -way reversing valve quick reversing structure is proposed. INVENTION CONTENTS

[0007] In order to overcome the above-mentioned defects of the prior art, the utility model provides multi -way reversing valve quick reversing structure to solve the problems in the above background technology.

[0008] To achieve the above object, the utility model provides the following technical scheme: Multi -way reversing valve quick reversing structure, including lower valve plate and upper valve plate, lower valve plate and upper valve plate connection form sealed valve body, sealed valve body one side is installed with drive box, the sealed valve body inside forms valve cavity, valve stem is installed in valve cavity, a plurality of valve plugs are installed on the valve stem, the valve stem one end is connected with the gear plate set in the drive box, the gear plate bottom end sliding connection has slide rail, the gear plate top end is engaged with drive assembly, drive assembly one end is provided with support seat, the valve plug of valve stem one end sets up and is cooperated with upper valve plate and separates out a pressure measuring cavity with valve cavity, pressure sensor is installed on the upper valve plate one side of pressure measuring cavity.

[0009] Preferably, the valve cavity one side is provided with first liquid inlet channel and second liquid inlet channel, first liquid inlet channel and second liquid inlet channel are connected with first liquid inlet and second liquid inlet respectively, the other side of valve cavity is provided with first liquid outlet channel, second liquid outlet channel and third liquid outlet channel, first liquid outlet channel, second liquid outlet channel and third liquid outlet channel are connected with first liquid outlet, second liquid outlet and third liquid outlet respectively.

[0010] Preferably, the valve plug is uniformly provided with a plurality of grooves, and a sealing ring is installed in each groove.

[0011] Preferably, the drive assembly includes a motor, a rotating rod, and a drive gear, the motor is installed in the drive box, the motor output end is connected with the rotating rod, and the rotating rod is installed with the drive gear.

[0012] Preferably, the drive gear is engaged with the gear plate, and the gear plate is coaxially arranged with the valve cavity.

[0013] Preferably, the drive box is installed with a reversing switch connected with the motor.

[0014] The technical effects and advantages of the utility model are as follows:

[0015] 1. The motor drive gear is engaged with the gear plate, which drives the valve rod and the valve plug to move, realizes the quick change of the communication state of the inlet and outlet channels, greatly improves the reversing efficiency and precision compared with the traditional manual reversing mode, and better meets the demand for quick switching of medium flow direction under complex working conditions.

[0016] 2. By setting grooves and sealing rings on the valve plug, the sealing of the inlet and outlet liquid after reversing is enhanced, the mixing of the medium overflow is effectively prevented, the stability and safety of the system operation are ensured, and the equipment failure and medium waste caused by leakage are reduced.

[0017] 3、By using the pressure measuring cavity and the pressure sensor, not only the working state of the liquid outlet can be determined through the air pressure change in the reversing process, but also the sealing performance of the reversing valve can be detected during assembly, so that early debugging is facilitated, the risk of leakage in use is reduced, and the overall reliability and service life of the equipment are improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the utility model.

[0019] Figure 2 It is a lower valve plate and valve rod valve plug cooperation structure schematic view of the utility model.

[0020] Figure 3 It is an upper valve plate and valve rod valve plug cooperation structure schematic view of the utility model.

[0021] Figure 4 It is a driving assembly connection structure schematic view of the utility model.

[0022] The figure mark is: 1, lower valve plate;2, upper valve plate;3, driving box;4, first liquid inlet;5, second liquid inlet;6, first liquid outlet;7, second liquid outlet;8, third liquid outlet;9, valve cavity;10, first liquid inlet channel;11, second liquid inlet channel;12, first liquid outlet channel;13, second liquid outlet channel;14, third liquid outlet channel;15, valve rod;16, valve plug;17, toothed plate;18, slide rail;19, driving assembly;1901, motor;1902, rotating rod;1903, driving gear;20, support seat;21, pressure measuring cavity;22, pressure sensor. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] As shown in the accompanying drawings Figures 1-4The illustrated multi-way reversing valve quick reversing structure comprises a lower valve plate 1 and an upper valve plate 2 which are connected to form a sealed valve body, one side of the sealed valve body is provided with a driving box 3, a valve cavity 9 is formed in the sealed valve body, a valve rod 15 is installed in the valve cavity 9, a plurality of valve plugs 16 are installed on the valve rod 15, one end of the valve rod 15 is connected with a tooth plate 17 arranged in the driving box 3, the bottom end of the tooth plate 17 is slidably connected with a slide rail 18, the top end of the tooth plate 17 is in meshing connection with a driving assembly 19, one end of the driving assembly 19 is provided with a supporting seat 20, the valve plug 16 arranged at one end of the valve rod 15 cooperates with the upper valve plate 2 to divide the valve cavity 9 into a pressure measuring cavity 21, one side of the pressure measuring cavity 21 is provided with a pressure sensor 22 installed on the upper valve plate 2.

[0025] In specific implementation, through the operation of the driving assembly 19, the tooth plate 17 can be moved on the slide rail 18, thereby dragging the valve rod 15 to move, so as to change the positions of the valve plugs 16, thereby changing the communication between the inlet and outlet channels, so as to realize quick reversing, and in the process of reversing, the pressure sensor 22 can detect the air pressure in the pressure measuring cavity 21, and through the air pressure change value, it can be determined which liquid outlets are used for liquid output at this time, and at the same time, when assembling the whole reversing valve, through reversing adjustment, the pressure change of the pressure measuring cavity 21 can be observed through the pressure sensor 22, so as to judge the sealing performance of the reversing valve according to the air pressure stability in the pressure measuring cavity 21, thereby the sealing performance can be debugged before installation, so as to avoid leakage in use.

[0026] One side of the valve cavity 9 is provided with a first liquid inlet channel 10 and a second liquid inlet channel 11, the first liquid inlet channel 10 and the second liquid inlet channel 11 are respectively connected with a first liquid inlet 4 and a second liquid inlet 5, the other side of the valve cavity 9 is provided with a first liquid outlet channel 12, a second liquid outlet channel 13 and a third liquid outlet channel 14, the first liquid outlet channel 12, the second liquid outlet channel 13 and the third liquid outlet channel 14 are respectively connected with a first liquid outlet 6, a second liquid outlet 7 and a third liquid outlet 8.

[0027] In specific implementation, through pushing the valve rod 15 into the valve cavity 9, the pressure sensor 22 in the pressure measuring cavity 21 detects that the air pressure increases, so that the first liquid inlet channel 10 is in communication with the second liquid outlet channel 13, and the second liquid inlet channel 11 is in communication with the third liquid outlet channel 14, thereby making the medium enter from the first liquid inlet 4 and the second liquid inlet 5 and exit from the second liquid outlet 7 and the third liquid outlet 8;

[0028] When the valve rod 15 is pulled by the driving assembly 19 to the driving box 3, the pressure sensor 22 in the pressure measuring cavity 21 detects the decrease of air pressure, at this time, the first liquid inlet channel 10 and the first liquid outlet channel 12 are communicated, the second liquid inlet channel 11 and the second liquid outlet channel 13 are communicated, so that the medium enters from the first liquid inlet 4 and the second liquid inlet 5 respectively and is discharged from the first liquid outlet 6 and the second liquid outlet 7, so as to realize the quick reversing.

[0029] The valve plug 16 is uniformly provided with a plurality of grooves, and a sealing ring is arranged in each groove.

[0030] In specific implementation, the sealing of the liquid inlet and outlet after reversing can be improved by the multiple sealing rings and the valve cavity 9, and the medium overflow and mixing can be avoided.

[0031] The driving assembly 19 comprises a motor 1901, a rotating rod 1902 and a driving gear 1903, the motor 1901 is arranged in the driving box 3, the rotating rod 1902 is connected to the output end of the motor 1901, and the driving gear 1903 is arranged on the rotating rod 1902.

[0032] The driving gear 1903 is in meshing connection with the toothed plate 17, and the toothed plate 17 is coaxially arranged with the valve cavity 9.

[0033] In specific implementation, the motor 1901 is operated to rotate the rotating rod 1902, so that the driving gear 1903 is in meshing connection with the toothed plate 17 to rotate the toothed plate 17, the toothed plate 17 is dragged to move the valve rod 15 on the sliding rail 18, so that the operation of the motor 1901 can control the quick reversing adjustment of the multi-way reversing valve, and the precise control of the motor 1901 is much more accurate and convenient than manual control.

[0034] The driving box 3 is provided with a reversing switch connected with the motor 1901.

[0035] In specific implementation, the motor 1901 can be operated by pressing the reversing switch to realize the quick automatic and precise reversing.

[0036] The above only describes the preferred embodiments of the utility model and is not used for limiting the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A multi-way directional valve quick-switching structure, comprising a lower valve plate (1) and an upper valve plate (2), characterized in that: The lower valve plate (1) and the upper valve plate (2) are connected to form a sealed valve body. A drive box (3) is installed on one side of the sealed valve body. A valve cavity (9) is formed inside the sealed valve body. A valve stem (15) is installed in the valve cavity (9). Multiple valve plugs (16) are installed on the valve stem (15). One end of the valve stem (15) is connected to a toothed plate (17) set in the drive box (3). A slide rail (18) is slidably connected to the bottom end of the toothed plate (17). The top end of the toothed plate (17) is engaged with the drive assembly (19). A support seat (20) is provided at one end of the drive assembly (19). The valve plug (16) at one end of the valve stem (15) cooperates with the upper valve plate (2) to separate a pressure measuring chamber (21) from the valve cavity (9). A pressure sensor (22) is installed on the upper valve plate (2) on one side of the pressure measuring chamber (21).

2. The rapid switching structure of the multi-way directional valve according to claim 1, characterized in that: The valve chamber (9) has a first liquid inlet channel (10) and a second liquid inlet channel (11) on one side. The first liquid inlet channel (10) and the second liquid inlet channel (11) are respectively connected to a first liquid inlet (4) and a second liquid inlet (5). The valve chamber (9) has a first liquid outlet channel (12), a second liquid outlet channel (13) and a third liquid outlet channel (14) on the other side. The first liquid outlet channel (12), the second liquid outlet channel (13) and the third liquid outlet channel (14) are respectively connected to a first liquid outlet (6), a second liquid outlet (7) and a third liquid outlet (8).

3. The rapid switching structure of the multi-way directional valve according to claim 2, characterized in that: The valve plug (16) has multiple grooves evenly spaced, and each groove is fitted with a sealing ring.

4. The rapid switching structure of the multi-way directional valve according to claim 3, characterized in that: The drive assembly (19) includes a motor (1901), a rotating rod (1902), and a drive gear (1903). The motor (1901) is installed in the drive box (3). The output end of the motor (1901) is connected to the rotating rod (1902), and the drive gear (1903) is installed on the rotating rod (1902).

5. The rapid switching structure of the multi-way directional valve according to claim 4, characterized in that: The drive gear (1903) meshes with the toothed plate (17), and the toothed plate (17) is coaxially arranged with the valve chamber (9).

6. The rapid switching structure of the multi-way directional valve according to claim 5, characterized in that: The drive box (3) is equipped with a reversing switch connected to the motor (1901).

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