Tubular electromagnetic directional valve

Abstract

The utility model discloses a tubular electromagnetic directional valve which comprises a shell, a steel sleeve is fixedly connected in the shell, a left side installation chamber is arranged on the left side of the shell, and the tubular electromagnetic directional valve comprises a multi-channel reversing mechanism and a reversing driving mechanism. The multi-channel reversing mechanism comprises a rotating rod, a cylindrical valve element, a three-way channel, a first one-way channel, a second one-way channel and a sealing blocking opening, the cylindrical valve element is rotationally connected to the interior of the steel sleeve through the rotating rod, the three-way channel is formed in the upper side of the outer arc face of the cylindrical valve element, and the first one-way channel is formed in the front side of the outer arc face of the cylindrical valve element; a second one-way channel is formed in the rear side of the outer cambered surface of the cylindrical valve element, and a sealing blocking opening is fixedly connected to the lower left side of the outer cambered surface of the cylindrical valve element. According to the tubular electromagnetic directional valve, the adjusting and reversing response speed is high, the sealing effect is good, and fluid is not prone to overflowing.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electromagnetic reversing valve, concretely to a pipe type electromagnetic reversing valve. BACKGROUND

[0002] The pipe type electromagnetic valve is an industrial equipment controlled by electromagnetism, is an automation basic element for controlling fluid, belongs to the actuator, and is not limited to hydraulic pressure, pneumatic, wherein the electromagnetic valve can cooperate with different circuits to realize the expected control, and the control precision and flexibility can be guaranteed, and different electromagnetic valves play roles at different positions of the control system.

[0003] In the prior art, the patent with the authorized publication number CN202320038325.3 discloses a pipe type electromagnetic reversing valve, which comprises an electromagnetic reversing valve body, an installation plate is arranged above the middle position of the electromagnetic reversing valve body, a through hole is formed in the top end of the installation plate, the through hole is in mutual butt joint with the pipeline connecting hole at the top end of the electromagnetic reversing valve body, a slot is formed in the inside of the installation plate, the slot is located outside the through hole, extrusion blocks are arranged on the inside of the slot at both sides, the extrusion blocks are located at both sides of the slot, and rubber pads are arranged on the inner walls of the extrusion blocks.

[0004] The pipe type electromagnetic reversing valve has the problems that the valve core structure is not optimized, the electromagnetic coils at both sides of the valve core are subjected to strong pulling force for a long time, the wear speed is fast, the pulling effect on the valve core is poor after wear, the response speed is slow, the sealing effect is poor, and the fluid is prone to overflow after wear. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem of overcoming the defects in the prior art, provides a pipe type electromagnetic reversing valve, adjusts the reversing response speed, and has good sealing effect, fluid is not easy to overflow, and can effectively solve the problems in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a pipe type electromagnetic reversing valve, which comprises an outer shell, a steel sleeve is fixedly connected in the inside of the outer shell, a left mounting chamber is arranged on the left side of the outer shell, and a multi-pass reversing mechanism and a reversing drive mechanism are arranged in the left mounting chamber.

[0007] The multi-pass reversing mechanism comprises a rotating rod, a cylindrical valve core, a three-way channel, a first single-pass channel, a second single-pass channel and a sealing plug, the cylindrical valve core is rotationally connected to the inside of the steel sleeve through the rotating rod, the three-way channel is formed in the upper side of the outer arc surface of the cylindrical valve core, the first single-pass channel is formed in the front side of the outer arc surface of the cylindrical valve core, the second single-pass channel is formed in the rear side of the outer arc surface of the cylindrical valve core, and the sealing plug is fixedly connected to the lower left side of the outer arc surface of the cylindrical valve core.

[0008] The reversing driving mechanism is arranged on the left side of the steel sleeve, has fast reversing response speed, and has good sealing effect and is not easy to overflow.

[0009] Further, the left side of the left mounting chamber is provided with a controller, and an input end of the controller is electrically connected with an external power supply to control normal operation of the motor.

[0010] Further, the reversing driving mechanism comprises a worm and a worm wheel, the worm is rotatably connected between front and rear inner walls of the left mounting chamber, an outer arc surface left end of the rotating rod is fixedly connected with the worm wheel, the worm is meshingly connected with the worm wheel, and the transmission function is realized.

[0011] Further, the reversing driving mechanism further comprises a brushless motor, the brushless motor is fixedly connected to the middle part of the front side of the left mounting chamber, an output shaft of the brushless motor is fixedly connected with the front end of the worm, and an input end of the brushless motor is electrically connected with an output end of the controller to provide power for reversing adjustment.

[0012] Further, the upper right side of the steel sleeve is provided with a feeding pipe, the upper left side of the steel sleeve is symmetrically provided with two discharging pipes, the lower ends of the feeding pipe and the two discharging pipes respectively extend to the inside of the steel sleeve, and screw thread joints are respectively formed in the upper sides of the outer arc surfaces of the feeding pipe and the two discharging pipes, so that external feeding equipment can be connected.

[0013] Further, the lower side of the shell is provided with uniformly distributed supporting legs, screw thread holes are respectively formed in the middle parts of the supporting legs, and the screw thread installation function is realized.

[0014] Further, the left side of the first single-pass channel extends to the upper front side of the cylindrical valve core, and the left side of the second single-pass channel extends to the lower front side of the cylindrical valve core, so that the different channels and different discharging pipes are communicated.

[0015] Compared with the prior art, the pipe type electromagnetic reversing valve has the following advantages.

[0016] The structure adopts a worm and worm wheel transmission structure, utilizes a brushless motor to drive the cylindrical valve core to rotate in real time by a specified angle in the steel sleeve, and then forms different passages through the three-way channel, the first single-pass channel and the second single-pass channel, so that external fluid is conveyed through one of the three-way channel, the first single-pass channel and the second single-pass channel, the reversing response speed is fast, the sealing effect is good, and the fluid is not easy to overflow. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model;

[0018] Figure 2 It is a sectional view of the utility model;

[0019] Figure 3 It is the schematic diagram of the cylindrical valve core structure of the utility model

[0020] Figure 4 It is the schematic diagram of the front side structure of the cylindrical valve core of the utility model

[0021] Figure 5 It is the schematic diagram of the overhead structure of the cylindrical valve core of the utility model

[0022] Figure 6 It is the schematic diagram of the rear view structure of the cylindrical valve core of the utility model

[0023] Figure 7 It is the schematic diagram of the overhead structure of the utility model.

[0024] In the figure: 1 shell, 2 multi-pass reversing mechanism, 21 rotating rod, 22 cylindrical valve core, 23 three-way channel, 24 first single-pass channel, 25 second single-pass channel, 26 sealing plug, 3 left side mounting chamber, 4 reversing drive mechanism, 41 worm, 42 worm gear, 43 brushless motor, 5 controller, 6 support leg, 7 feed pipe, 8 discharge pipe, 9 steel sleeve. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to 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 scope of protection of the utility model.

[0026] Please refer to Figures 1-7 The embodiment provides a technical scheme: a tubular electromagnetic reversing valve, which comprises a shell 1, a steel sleeve 9 fixedly connected inside the shell 1, a left side mounting chamber 3 arranged on the left side of the shell 1, a controller 5 arranged on the left side of the left side mounting chamber 3, an input end of the controller 5 electrically connected with an external power supply, a feed pipe 7 arranged on the upper right side of the steel sleeve 9, discharge pipes 8 symmetrically arranged on the upper left side of the steel sleeve 9, the lower ends of the feed pipe 7 and the two discharge pipes 8 respectively extending to the inside of the steel sleeve 9, threaded joints respectively arranged on the outer arc upper sides of the feed pipe 7 and the two discharge pipes 8, support legs 6 evenly arranged on the lower side of the shell 1, threaded holes respectively arranged in the middle parts of the support legs 6, a multi-pass reversing mechanism 2 and a reversing drive mechanism 4, when the tubular electromagnetic reversing valve is needed, the reversing valve can be installed on a specified station through external bolts and threaded holes on the support legs 6, then an external feed pipe is connected with the feed pipe 7 through the threaded joints, and the remaining pipes are connected with the two discharge pipes 8.

[0027] Multi-channel reversing mechanism 2: it includes rotating rod 21, cylindrical valve core 22, three-way channel 23, first single-channel channel 24, second single-channel channel 25 and sealing plug 26, cylindrical valve core 22 is rotatably connected to the inside of steel sleeve 9 through rotating rod 21, the outer arc surface upper side of cylindrical valve core 22 is provided with three-way channel 23, the outer arc surface front side of cylindrical valve core 22 is provided with first single-channel channel 24, the outer arc surface rear side of cylindrical valve core 22 is provided with second single-channel channel 25, the outer arc surface left lower side of cylindrical valve core 22 is fixedly connected with sealing plug 26 (sealing plug 26 is made of rubber material), the channel left side of first single-channel channel 24 extends to the upper front side of cylindrical valve core 22, the channel left side of second single-channel channel 25 extends to the lower front side of cylindrical valve core 22, three-way channel 23, first single-channel channel 24 and second single-channel channel 25 respectively form complete and sealed channels with the inner arc surface of steel sleeve 9, thereby driving cylindrical valve core 22 to rotate in steel sleeve 9, and rotating three-way channel 23 to the uppermost side, at this time, the lower end of feeding pipe 7 is vertically corresponding to the upper and lower positions of three-way channel 23, the lower ends of two discharge pipes 8 respectively correspond to the left front channel and left rear channel of three-way channel 23, at this time, the material enters through feeding pipe 7 and is divided through three-way channel 23, and is discharged through two discharge pipes 8 in turn, when only one discharge pipe 8 is needed for conveying, cylindrical valve core 22 can be controlled to rotate by 90 degrees or rotate by 180 degrees, when cylindrical valve core 22 rotates by 90 degrees, feeding pipe 7 forms a channel with the rear discharge pipe 8 through first single-channel channel 24, when cylindrical valve core 22 rotates by 180 degrees, feeding pipe 7 forms a channel with the rear discharge pipe 8 through second single-channel channel 25, single-channel operation is carried out at the corresponding positions respectively, when the conveying operation needs to be stopped, sealing plug 26 moves to the uppermost side to block two discharge pipes 8, at this time, three-way channel 23, first single-channel channel 24 and second single-channel channel 25 of cylindrical valve core 22 are not connected with feeding pipe 7, so as to prevent the material from continuing to enter the inside of steel sleeve 9;

[0028] Reversing drive mechanism 4: it is arranged on the left side of steel sleeve 9: reversing drive mechanism 4 includes worm 41 and worm gear 42, worm 41 is rotatably connected between the front and rear inner walls of left mounting chamber 3, the outer arc surface left end of rotating rod 21 is fixedly connected with worm gear 42, worm 41 is meshingly connected with worm gear 42, reversing drive mechanism 4 further includes brushless motor 43, brushless motor 43 is fixedly connected to the middle part of the front side of left mounting chamber 3, the output shaft of brushless motor 43 is fixedly connected with the front end of worm 41, the input end of brushless motor 43 is electrically connected with the output end of controller 5, then the external conveying equipment can be controlled, when the reversing valve needs to carry out double-channel conveying, controller 5 can be controlled, brushless motor 43 operates, the output shaft of brushless motor 43 rotates by a specified number of turns, thereby driving rotating rod 21 to rotate through worm 41 and worm gear 42.

[0029] The working principle of the pipe type electromagnetic reversing valve is as follows: when the pipe type electromagnetic reversing valve needs to be used, the reversing valve can be installed on the specified work station through the external bolt and the threaded port on the supporting leg 6, then the external feeding pipe is connected with the feeding pipe 7 through the threaded joint, the remaining pipes are connected with the two discharge pipes 8, then the external conveying equipment can be controlled, when the reversing valve needs to be used for double passage conveying, the controller 5 can be controlled, the brushless motor 43 is operated, the output shaft of the brushless motor 43 rotates for a specified number of times, then the worm gear 41 and the worm wheel 42 drive the rotating rod 21 to rotate, then the cylindrical valve core 22 rotates in the steel sleeve 9, and the three-way channel 23 is turned to the uppermost side, at this time, the lower end of the feeding pipe 7 is vertically corresponding to the upper and lower positions of the three-way channel 23, the lower ends of the two discharge pipes 8 correspond to the left front channel and the left rear channel of the three-way channel 23 respectively, at this time, the material enters the three-way channel 23 through the feeding pipe 7 and is discharged through the two discharge pipes 8 in turn, when only one discharge pipe 8 needs to be used for conveying, the cylindrical valve core 22 can be controlled to rotate by 90 degrees or to rotate by 180 degrees, when the cylindrical valve core 22 rotates by 90 degrees, the feeding pipe 7 and the rear discharge pipe 8 form a passage through the first single passage channel 24, when the cylindrical valve core 22 rotates by 180 degrees, the feeding pipe 7 and the rear discharge pipe 8 form a passage through the second single passage channel 25, the single passage operation of the corresponding positions is carried out respectively, when the material conveying operation needs to be stopped, the sealing block hole 26 moves to the uppermost side to block the two discharge pipes 8, at this time, the three-way channel 23, the first single passage channel 24 and the second single passage channel 25 of the cylindrical valve core 22 are not connected with the feeding pipe 7, and the arc surface of the cylindrical valve core 22 blocks the feeding pipe 7, so that the material continues to enter the inside of the steel sleeve 9.

[0030] It is worth noting that the controller 5 core chip disclosed in the above embodiment is PLC single-chip microcomputer, and the specific model is STM32, and the brushless motor 43 can be freely configured according to the actual application scene, and the brushless motor 43 is recommended to be PBL2410018 type brushless direct current motor, and the controller 5 controls the brushless motor 43 to work by using the method commonly used in the prior art.

[0031] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation obtained by using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A tubular electromagnetic reversing valve, comprising a shell (1), the inside of the shell (1) is fixedly connected with a steel sleeve (9), the left side of the shell (1) is provided with a left side mounting chamber (3), characterized in that: The multi-path reversing mechanism (2) and the reversing drive mechanism (4) are included. The multi-path reversing mechanism (2) includes a rotating rod (21), a cylindrical valve core (22), a three-way channel (23), a first single-way channel (24), a second single-way channel (25), and a sealing plug (26). The cylindrical valve core (22) is rotatably connected to the inside of the steel sleeve (9) through the rotating rod (21). The outer arc surface of the cylindrical valve core (22) is provided with the three-way channel (23) on the upper side. The outer arc surface of the cylindrical valve core (22) is provided with the first single-way channel (24) on the front side. The outer arc surface of the cylindrical valve core (22) is provided with the second single-way channel (25) on the rear side. The outer arc surface of the cylindrical valve core (22) is fixedly connected with the sealing plug (26) on the lower left side. The reversing drive mechanism (4) is arranged on the left side of the steel sleeve (9).

2. A tube solenoid commutated valve according to claim 1, characterized in that: The left side of the left mounting chamber (3) is provided with a controller (5), and the input end of the controller (5) is electrically connected with an external power supply.

3. A tube solenoid commutated valve according to claim 2, characterised in that: The reversing drive mechanism (4) includes a worm (41) and a worm wheel (42). The worm (41) is rotatably connected between the front and rear inner walls of the left mounting chamber (3). The outer arc surface of the rotating rod (21) is fixedly connected with the worm wheel (42). The worm (41) is meshingly connected with the worm wheel (42).

4. A tube solenoid commutated valve according to claim 3, characterised in that: The reversing drive mechanism (4) further includes a brushless motor (43). The brushless motor (43) is fixedly connected to the middle part of the front side of the left mounting chamber (3). The output shaft of the brushless motor (43) is fixedly connected with the front end of the worm (41). The input end of the brushless motor (43) is electrically connected with the output end of the controller (5).

5. A tube solenoid commutated valve according to claim 1 wherein: The upper right side of the steel sleeve (9) is provided with a feeding pipe (7). The upper left side of the steel sleeve (9) is symmetrically provided with two discharge pipes (8). The lower ends of the feeding pipe (7) and the two discharge pipes (8) respectively extend into the inside of the steel sleeve (9). The outer arc surfaces of the feeding pipe (7) and the two discharge pipes (8) are respectively provided with threaded screw joints on the upper side.

6. A tube solenoid commutated valve according to claim 1 wherein: The lower side of the shell (1) is provided with evenly distributed supporting legs (6). The middle parts of the supporting legs (6) are respectively provided with threaded screw joints.

7. A tube solenoid commutated valve according to claim 1 wherein: The channel left side of the first single-way channel (24) extends to the upper front side of the cylindrical valve core (22). The channel left side of the second single-way channel (25) extends to the lower front side of the cylindrical valve core (22).

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