Solenoid directional valve with optimized structure

Abstract

The invention is suitable for the technical field of reversing valves, and provides a structure-optimized electromagnetic reversing valve which comprises an oil outlet assembly additionally arranged on a reversing valve body, the oil outlet assembly comprises a plurality of unit oil outlet pipes, each unit oil outlet pipe comprises a caliber adjusting pipe and an inner elastic cylinder, the caliber adjusting pipe is arranged on the outer side of the inner elastic cylinder in a sleeving mode, and the caliber adjusting pipe is arranged in the inner elastic cylinder in a sleeving mode. The inner elastic cylinder is connected with the outer elastic cylinder; the caliber adjusting pipe comprises a plurality of caliber adjusting rings; the oil outlet hole diameter of the oil outlet channel of the unit oil outlet pipe is adjusted by adjusting the hole diameters of the local caliber adjusting rings; the electromagnetic reversing valve further adjusts the fluid pressure according to actual needs, the situation that multiple unit oil outlet pipes need to be independently connected with an external pneumatic device, dependence on an external air source is caused, the system size and energy consumption are increased, and an air path prone to faults is avoided is avoided.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of reversing valves, in particular to a structure-optimized electromagnetic reversing valve. BACKGROUND

[0002] The electromagnetic reversing valve is an automatic control element for realizing fluid (oil or gas) on-off and flow direction switching through electromagnetic force driving valve core movement; mainly comprising a valve body, a flow channel, a valve core assembly and an electromagnetic driving system, the electromagnetic driving system generates a magnetic field after the electromagnetic coil is electrified, attracts the armature to push the valve core to move or transmits the thrust through hydraulic oil; the reset spring forces the valve core to return to the middle position when power is off.

[0003] The core application field of the electromagnetic reversing valve is industrial hydraulic systems, hygienically sensitive scenarios and automated production lines and the like, in the automated production line, the electromagnetic reversing valve is mainly applied to the industrial robot end effector air path switching (grasping / release) of the automated production line, and the response frequency is greater than 10 Hz.

[0004] In order to cope with further fluid pressure adjustment according to actual needs, or to select to close the flow channel that has been connected according to actual needs, the prior art electromagnetic reversing valve adds some fluid pressure adjustment mechanisms; for example, the "pressure adjustment mechanism" for fluid pressure adjustment disclosed in the patent "an integrated adjustable pressure electromagnetic reversing valve" (application number 202110628559.9) needs to be independently connected with external pneumatic devices, which depends on external air source, increases the system volume and energy consumption, and the air path is prone to failure. SUMMARY

[0005] (I) Technical problems solved The purpose of the embodiment of the application is to provide a structure-optimized electromagnetic reversing valve, which aims to solve the problems that the prior art electromagnetic reversing valve adds some fluid pressure adjustment mechanisms in order to cope with further fluid pressure adjustment according to actual needs, or to select to close the flow channel that has been connected according to actual needs, the pressure adjustment mechanisms need to be independently connected with external pneumatic devices, which causes dependence on external air source, increases the system volume and energy consumption, and the air path is prone to failure.

[0006] (II) Technical solutions Specifically, the application discloses a structure-optimized electromagnetic reversing valve, which comprises an oil outlet assembly arranged on a reversing valve body, wherein the oil outlet assembly comprises a plurality of unit oil outlet pipes, each of which comprises a caliber adjusting pipe and an inner elastic cylinder; the caliber adjusting pipe is arranged outside the inner elastic cylinder and is connected with the inner elastic cylinder; the caliber adjusting pipe comprises a plurality of caliber adjusting rings; the caliber of the caliber adjusting rings is adjusted to adjust the oil outlet caliber of the oil outlet passage of the unit oil outlet pipe; the oil outlet caliber of the oil outlet passage of the unit oil outlet pipe is adjusted by adjusting the caliber of the caliber adjusting rings on the oil outlet assembly; the electromagnetic reversing valve can be further adjusted according to actual needs to avoid the independent connection of the plurality of unit oil outlet pipes with external pneumatic devices, thereby avoiding the dependence on external air sources, the increase of system volume and energy consumption and the avoidance of the air path prone to failure.

[0007] The technical scheme of the application is further described below: In one of the embodiments, the columns of the plurality of caliber adjusting rings are arranged on the same straight line; the caliber adjusting ring comprises a plurality of arc-shaped expansion plates, the plurality of arc-shaped expansion plates are connected in sequence and form a ring shape; the arc-shaped expansion plates can be expanded and contracted along an arc-shaped track.

[0008] In one of the embodiments, the arc-shaped expansion plate comprises: a receiving plate, which is provided with a receiving cavity; the receiving plate is in an arc shape, the receiving cavities are distributed along the main body of the receiving plate, and the receiving cavities are in a one-way opening shape; the arc degree of the receiving plate matches the arc degree of the receiving cavities; a penetrating plate, which is movably penetrated into the receiving cavities; the arc degree of the penetrating plate matches the arc degree of the receiving cavities; the receiving cavities are provided with arc-shaped electric push rods for controlling the penetration of the penetrating plate into the receiving cavities.

[0009] Further, the receiving plate is provided with an electric telescopic rod outside the receiving plate, both ends of the electric telescopic rod are provided with hinged balls, the electric telescopic rod is arranged between the oil outlet assembly and the receiving plate, and the electric telescopic rod is hingedly connected to the oil outlet assembly and the receiving plate through the hinged balls.

[0010] In one of the embodiments, the oil outlet assembly comprises: an outer mounting table, which is detachably mounted on the reversing valve body; the reversing valve body is provided with a mounting groove matched with the outer mounting table; an oil outlet inner pipe is arranged through the outer mounting table, and a plurality of unit oil outlet pipes are arrayed in the oil outlet inner pipe; two locking plates, which are arranged on both sides of the outer mounting table; the locking plates are integrally and fixedly connected with the outer mounting table, and the locking plates are in an L shape; A plurality of bolts are distributed on the two locking plates; the bolts are used to detachably mount the locking plates on the reversing valve body; a plurality of threaded holes are formed on the reversing valve body and matched with the plurality of bolts in one-to-one correspondence.

[0011] Therefore, the oil outlet assembly including a plurality of unit oil outlet pipes can be detachably mounted on the reversing valve body through the external mounting table and the two locking plates, achieving unified sealing and avoiding the need for machining a plurality of precise mounting grooves, annular sealing grooves and pressure channels for the plurality of unit oil outlet pipes. The unified installation of the oil outlet assembly including a plurality of unit oil outlet pipes realizes a standardized pre-assembly module, which is detachably mounted on the reversing valve body through the plurality of bolts and the two locking plates, thereby reducing the complexity of machining the reversing valve body.

[0012] In one embodiment, a sealing assembly is mounted at one end of the oil outlet assembly, and is used to uniformly seal the oil outlet assembly mounted on the reversing valve body; a connecting pipe is arranged on the reversing valve body and is used to communicate with the oil outlet assembly; a sealing groove is formed on the reversing valve body outside the connecting pipe and matched with the sealing assembly; the sealing assembly and the sealing groove are matched to uniformly seal and communicate the connection between the oil outlet assembly and the connecting pipe.

[0013] Further, the sealing assembly includes: An inner pad is sleeved outside the connecting pipe; the inner pad is used to uniformly seal and communicate the connection between the oil outlet assembly and the connecting pipe; A locking band is wound outside the inner pad; the locking band is used to tightly lock the inner pad to the connection between the oil outlet assembly and the connecting pipe; A reinforcing member is sleeved outside the inner pad and between the inner pad and the locking band; the reinforcing member is used to reinforce the inner pad and the locking band to the connection between the oil outlet assembly and the connecting pipe; An outer shell is covered outside the inner pad, the reinforcing member and the locking band; the outer shell is used to stably position the inner pad, the reinforcing member and the locking band at the connection between the oil outlet assembly and the connecting pipe.

[0014] The locking band is wound in multiple turns and includes: An inner locking ring is used to tightly lock the inner pad to the connection between the oil outlet assembly and the connecting pipe; the inner pad is inside the inner locking ring; An outer locking ring is an extension of the locking band extending from the inner locking ring and is used to be sleeved on the inner locking ring; the reinforcing member is between the inner locking ring and the outer locking ring; A connecting frame is fixed at the end of the inner locking ring; the connecting frame is in a U shape, and the U-shaped sealing end of the connecting frame is movably sleeved at the connection between the inner locking ring and the outer locking ring.

[0015] Therefore, after the sealing assembly is inserted outside the sealing groove, tightening the outer end of the locking band causes the U-shaped sealing end of the connecting frame to be movably fitted at the connection between the inner and outer locking rings. This allows the locking band to use the inner and outer locking rings to tightly and stably position the reinforcing member and the inner gasket at the connection between the oil outlet assembly and the connecting pipe. This achieves the cooperation between the sealing assembly and the sealing groove to uniformly seal and connect the oil outlet assembly and the connecting pipe, reducing the sealing connection process and connection steps, thus minimizing the risk of leakage. Simultaneously, a motor that works with the sensor can be added. When the sensor detects a decrease in pressure from the locking band compressing the connection between the inner and outer locking rings, the motor can rotate its shaft to tighten the locking band. This allows the locking band to be tightened at appropriate times during operation, ensuring that the inner and outer locking rings tightly and stably position the reinforcing member and the inner gasket at the connection between the oil outlet assembly and the connecting pipe, further facilitating the cooperation between the sealing assembly and the sealing groove to uniformly seal and connect the oil outlet assembly and the connecting pipe.

[0016] An insertion frame is installed on the outer shell, which facilitates the outer end of the locking strap to pass through.

[0017] The reinforcing member includes: The connecting strip is wound around the locking strip; Multiple abutment plates are evenly distributed on the connecting strip; The gap is created on the connecting strip.

[0018] (III) Beneficial Effects Compared with existing technologies, the structurally optimized electromagnetic directional valve of this invention can achieve the following: The unit oil outlet pipe on the oil outlet assembly adjusts the oil outlet diameter of the unit oil outlet pipe by adjusting the diameter of multiple local diameter adjustment rings; this enables the electromagnetic reversing valve to further regulate the fluid pressure according to actual needs, avoids the need for multiple unit oil outlet pipes to be independently connected to external pneumatic devices, thus avoiding dependence on external air sources, increasing system size and energy consumption, and avoiding air paths prone to failure. The oil outlet assembly, which includes multiple unit oil outlet pipes, can be detachably installed on the directional valve body using an external mounting platform and two locking plates, achieving a unified seal and avoiding the need to machine multiple precision mounting grooves, annular sealing grooves, and pressure channels for multiple unit oil outlet pipes. The unified installation of the oil outlet assembly, which includes multiple unit oil outlet pipes, realizes standardized pre-installed modules, which can be detachably installed on the directional valve body using multiple bolts and two locking plates, reducing the internal machining complexity of the directional valve body. After the sealing assembly is inserted into the outside of the sealing groove, tighten the outer end of the locking band. Because the U-shaped sealing end of the connecting frame is movably sleeved at the connection between the inner and outer locking rings, the locking band uses the inner and outer locking rings to tightly and stably position the reinforcing member and the inner gasket at the connection between the oil outlet assembly and the connecting pipe. This achieves the cooperation between the sealing assembly and the sealing groove to uniformly seal and connect the oil outlet assembly and the connecting pipe, reducing the sealing connection process and connection steps, thereby reducing the risk of leakage. A motor that works with the sensor can be added. When the sensor detects that the pressure at the connection between the inner and outer locking rings of the locking band has decreased, the motor can rotate the shaft to tighten the locking band. This allows the locking band to securely and stably position the reinforcing member and the inner gasket at the connection between the oil outlet assembly and the connecting pipe using the inner and outer locking rings. This facilitates the cooperation between the sealing assembly and the sealing groove to uniformly seal and connect the oil outlet assembly and the connecting pipe. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the optimized electromagnetic directional valve of the present invention; Figure 2 for Figure 1 Exploded view of a medium-sized optimized electromagnetic directional valve; Figure 3 for Figure 1 Schematic diagram of the oil outlet assembly; Figure 4 This is a schematic diagram of the unit oil outlet pipe in this invention; Figure 5 for Figure 4 Schematic diagram of the structure of the medium-diameter regulating pipe; Figure 6 for Figure 5 Schematic diagram of the structure of the medium-diameter regulating ring; Figure 7 for Figure 6 A demonstration diagram showing the shrinkage of the medium-diameter adjusting ring; Figure 8 for Figure 6 Schematic diagram of the structure of the arc-shaped telescopic plate; Figure 9 for Figure 5 A demonstration diagram showing how the diameter of the oil outlet channel can be adjusted using a medium-diameter regulating pipe; Figure 10A structure schematic diagram of the sealing assembly in the application; Figure 11 A structure schematic diagram of the sealing assembly in the application; Figure 10 A structure schematic diagram of the locking belt in the application; Figure 12 A structure schematic diagram of the sealing assembly in the application; Figure 11 A structure schematic diagram of the locking belt in the application; Figure 13 A structure schematic diagram of the sealing assembly in the application; Figure 10 A structure schematic diagram of the reinforcing member in the application; Figure 14 A structure schematic diagram of the sealing assembly in the application; Figure 10 A structure schematic diagram of the sealing assembly in the application.

[0021] In the drawing: The reversing valve body 1, the connecting pipe 11, the sealing groove 12; The oil outlet assembly 2, the oil outlet inner pipe 21, the outer mounting table 22, the locking plate 23, the bolt 24; The unit oil outlet pipe 3, the caliber adjusting pipe 31, the inner elastic cylinder 32, the caliber adjusting ring 33, the arc-shaped expansion plate 34, the oil outlet passage 35, the storage plate 341, the penetrating plate 342; The sealing assembly 4, the inner pad 41, the outer shell 42, the reinforcing member 43, the locking belt 44, the penetrating frame 421, the abutting plate 431, the notch 432, the connecting belt 433, the inner locking ring 441, the connecting frame 442, the outer locking ring 443. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the application more clear, the application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the application and not to limit the application. The specific implementation of the application is described in detail below in combination with specific examples.

[0023] In the embodiment of the application, as shown in Figure 1 , Figure 4 , Figure 5 and Figure 9 : A structure-optimized electromagnetic reversing valve, comprising an oil outlet assembly 2 installed on a reversing valve body 1, wherein the oil outlet assembly 2 comprises a plurality of unit oil outlet pipes 3, and each unit oil outlet pipe 3 comprises: An inner elastic cylinder 32; It should be noted that the inner elastic cylinder 32 is made of rubber material, and the inner surface of the inner elastic cylinder 32 is coated with a fluororubber or polytetrafluoroethylene coating to improve oil resistance and creep resistance. Rubber material, fluororubber and polytetrafluoroethylene are all existing materials that can be purchased directly on the market or obtained through literature, and are not protected by the application, so they are not described in detail here. The caliber adjusting pipe 31 is sleeved outside the inner elastic cylinder 32 and is connected with the inner elastic cylinder 32; the caliber adjusting pipe 31 comprises a plurality of caliber adjusting rings 33; by adjusting the caliber of the plurality of caliber adjusting rings 33, the oil outlet caliber of the oil outlet channel 35 of the unit oil outlet pipe 3 is adjusted. Therefore, by adjusting the caliber of the plurality of caliber adjusting rings 33, the oil outlet caliber of the oil outlet channel 35 of the unit oil outlet pipe 3 on the oil outlet assembly 2 is adjusted, so that the electromagnetic reversing valve can further adjust the fluid pressure according to actual needs, the plurality of unit oil outlet pipes 3 do not need to be independently connected with external pneumatic devices, the external air source is avoided, the system volume and energy consumption are reduced, and the pneumatic circuit which is prone to failure is avoided.

[0024] In the embodiment of the present application, as shown in Figures 4-9 The columns of the plurality of caliber adjusting rings 33 are on the same straight line. The caliber adjusting ring 33 comprises a plurality of arc-shaped expansion plates 34, the plurality of arc-shaped expansion plates 34 are connected in sequence and form a ring shape; the arc-shaped expansion plate 34 can be expanded and contracted along an arc-shaped track.

[0025] Therefore, since the arc-shaped expansion plate 34 can be expanded and contracted along an arc-shaped track, and the plurality of arc-shaped expansion plates 34 are connected in sequence and form a ring shape, by adjusting the length of the plurality of arc-shaped expansion plates 34, the caliber of the caliber adjusting ring 33 is adjusted, and the oil outlet caliber of the oil outlet channel 35 of the unit oil outlet pipe 3 is adjusted. For example Figure 7 In the embodiment, the plurality of arc-shaped expansion plates 34 are all expanded and contracted along an arc-shaped track, so that the caliber adjusting ring 33 is fully contracted to adjust the caliber.

[0026] In the embodiment of the present application, as shown in Figure 6 and Figure 8 The arc-shaped expansion plate 34 comprises: The receiving plate 341 is provided with a receiving cavity; the receiving plate 341 is in an arc shape, the receiving cavities are distributed along the main body of the receiving plate 341, and the receiving cavities are in a one-way opening shape; the arc degree of the receiving plate 341 matches the arc degree of the receiving cavities; The penetrating plate 342 is movably penetrated in the receiving cavities; the arc degree of the penetrating plate 342 matches the arc degree of the receiving cavities; the receiving cavities are internally provided with an arc-shaped electric push rod for controlling the penetration degree of the penetrating plate 342 into the receiving cavities.

[0027] The arc-shaped electric push rod belongs to the prior art, which can be directly purchased on the market, such as the Z-Mod-EP-35ZS-50 type linear push rod with arc-shaped motion matching mechanism of Huiling Technology, and the XDG750-50 type or XDG5000-50 type electric hydraulic arc-shaped push rod of Dingli / Flourish, and the like, which are not protected by the present application and will not be described in detail here. Meanwhile, the arc-shaped electric push rod can also be replaced by a plurality of arc-shaped electromagnetic coils, and the degree of insertion of the insertion plate 342 into the accommodation cavity is controlled by controlling the magnetism of the electromagnetic coils at different positions.

[0028] Therefore, the degree of insertion of the insertion plate 342 into the accommodation cavity is controlled by the arc-shaped telescopic adjustment of the arc-shaped electric push rod, and the caliber of the caliber adjusting ring 33 is adjusted by the arc-shaped telescopic adjustment of the plurality of arc-shaped telescopic plates 34 at one or more local positions.

[0029] Further, as shown in Figure 6 and Figure 8 , the accommodation plate 341 is provided with an electric telescopic rod on the outer side, the electric telescopic rod is provided with a hinged ball at both ends, the electric telescopic rod is between the oil outlet assembly 2 and the accommodation plate 341, and the electric telescopic rod is hingedly connected to the oil outlet assembly 2 and the accommodation plate 341 through the hinged balls.

[0030] The electric telescopic rod is used for positioning and telescopic adjustment of the arc-shaped telescopic plate 34.

[0031] In the embodiment of the present application, as shown in Figures 1-3 , the oil outlet assembly 2 comprises: An outer mounting table 22 is detachably mounted on the reversing valve body 1, the reversing valve body 1 is provided with a mounting groove matched with the outer mounting table 22, and a plurality of unit oil outlet pipes 3 are arrayed in the oil outlet inner pipe 21. Two locking plates 23 are distributed on both sides of the outer mounting table 22, and the locking plate 23 is integrally and fixedly connected with the outer mounting table 22, and the locking plate 23 is in L shape. A plurality of bolts 24 are distributed on the two locking plates 23, and the bolts 24 are used for detachably mounting the locking plate 23 on the reversing valve body 1, the reversing valve body 1 is provided with a plurality of threaded holes matched with the plurality of bolts 24, and the plurality of threaded holes and the plurality of bolts 24 are in one-to-one correspondence.

[0032] Therefore, the oil outlet assembly 2 comprising a plurality of unit oil outlet pipes 3 can be detachably mounted on the reversing valve body 1 through the external mounting table 22 and the two locking plates 23, achieving unified sealing and avoiding the need for multiple precision mounting grooves, annular sealing grooves and pressure channels for the plurality of unit oil outlet pipes 3. The unified installation of the oil outlet assembly 2 comprising a plurality of unit oil outlet pipes 3 realizes a standardized pre-installed module, which is detachably mounted on the reversing valve body 1 through a plurality of bolts 24 and the two locking plates 23, reducing the complexity of internal machining of the reversing valve body 1.

[0033] For example, the multiple "first oil outlet channel, second oil outlet channel, third oil outlet channel, fourth oil outlet channel" disclosed in the patent "Integrated adjustable pressure electromagnetic reversing valve" (application number 202110628559.9) need to be machined with multiple precision mounting grooves, annular sealing grooves and pressure channels, and multiple sets of sealing structures increase the risk of leakage.

[0034] In the embodiment of the present application, as shown in Figure 2 and Figure 10 : A sealing assembly 4 is installed at one end of the oil outlet assembly 2, and the sealing assembly 4 is used to uniformly seal and install the oil outlet assembly 2 on the reversing valve body 1; a connecting pipe 11 is provided on the reversing valve body 1, and the connecting pipe 11 is used to communicate to the oil outlet assembly 2; a sealing groove 12 is provided on the reversing valve body 1 outside the connecting pipe 11 in cooperation with the sealing assembly 4; The sealing assembly 4 and the sealing groove 12 cooperate to uniformly seal and connect the oil outlet assembly 2 and the connecting pipe 11.

[0035] Further, as shown in Figure 10 : The sealing assembly 4 comprises: An inner pad 41 is sleeved outside the connecting pipe 11; the inner pad 41 is used to uniformly seal and connect the oil outlet assembly 2 and the connecting pipe 11; A locking band 44 is wound outside the inner pad 41; the locking band 44 is used to tightly lock the inner pad 41 to the connection between the oil outlet assembly 2 and the connecting pipe 11; A reinforcing member 43 is sleeved outside the inner pad 41 and between the inner pad 41 and the locking band 44; the reinforcing member 43 is used to reinforce the inner pad 41 and the locking band 44 to the connection between the oil outlet assembly 2 and the connecting pipe 11; An outer shell 42 covers the inner pad 41, the reinforcing member 43 and the locking band 44 outside; the outer shell 42 is used to stably position the inner pad 41, the reinforcing member 43 and the locking band 44 at the connection between the oil outlet assembly 2 and the connecting pipe 11.

[0036] In the embodiment of the present application, as shown in Figures 10-12 : The locking band 44 is wound in multiple turns and comprises: The inner locking ring 441 is used for tightly locking the inner gasket 41 to the connection between the oil outlet assembly 2 and the connecting pipe 11; and the inner gasket 41 is located inside the inner locking ring 441. The outer locking ring 443 is an extension of the locking band 44 extending from the inner locking ring 441 and is used for sleeving the inner locking ring 441; and the reinforcing member 43 is located between the inner locking ring 441 and the outer locking ring 443. The connecting frame 442 is fixed at the end of the inner locking ring 441; and the connecting frame 442 is in a U shape, and the U-shaped sealing end of the connecting frame 442 is movably sleeved at the connection between the inner locking ring 441 and the outer locking ring 443.

[0037] Therefore, after the sealing assembly 4 is inserted outside the sealing groove 12, the outer end of the locking band 44 is pulled tight, and due to the U-shaped sealing end of the connecting frame 442 movably sleeving at the connection between the inner locking ring 441 and the outer locking ring 443, the locking band 44 tightly and stably positions the reinforcing member 43 and the inner gasket 41 at the connection between the oil outlet assembly 2 and the connecting pipe 11 by the inner locking ring 441 and the outer locking ring 443, so as to realize the cooperation of the sealing assembly 4 and the sealing groove 12 for uniformly sealing and connecting the oil outlet assembly 2 and the connecting pipe 11; and the sealing connection process and the connection steps are reduced, so as to reduce the risk of leakage.

[0038] As for the structure for pulling the outer end of the locking band 44 tight, it can be a rotating shaft cooperating with a hanging buckle, that is, after the rotating shaft rotates to drive the locking band 44 to tighten the locking band 44, the hanging buckle is used for limiting; or it can be directly pulling the locking band 44 and limiting the locking band 44 on the shell 42 by a limiting pin, etc., all of which belong to the prior art and are not protected by the present application, and thus are not described in detail here. Meanwhile, a motor cooperating with a sensor can also be additionally installed, and after the sensor detects that the pressure of the locking band 44 extruding the connection between the inner locking ring 441 and the outer locking ring 443 becomes smaller, the motor can rotate the locking band 44 to tighten the locking band 44, so as to timely and stably position the reinforcing member 43 and the inner gasket 41 at the connection between the oil outlet assembly 2 and the connecting pipe 11 by the inner locking ring 441 and the outer locking ring 443 during work, which is beneficial to the cooperation of the sealing assembly 4 and the sealing groove 12 for uniformly sealing and connecting the oil outlet assembly 2 and the connecting pipe 11.

[0039] In the embodiment of the present application, as shown in Figure 10 and Figure 14 The shell 42 is additionally provided with a penetrating frame 421, and the penetrating frame 421 is beneficial to the outer end of the locking band 44 penetrating out.

[0040] As shown in Figure 10 and Figure 13 The reinforcing member 43 comprises: A plurality of connecting bands 433 are arranged on the locking bands 44 (in particular, the connecting bands 433 are arranged on the inner locking rings 441); A plurality of abutting plates 431 are arranged on the connecting bands 433 at equal intervals. A plurality of notches 432 are arranged on the connecting bands 433.

[0041] In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified. In the description of the present application, although embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A structurally optimized electromagnetic directional valve, comprising an oil outlet assembly (2) mounted on the valve body (1), the oil outlet assembly (2) comprising multiple unit oil outlet pipes (3), characterized in that, The unit oil outlet pipe (3) includes: Inner elastic cylinder (32); A diameter adjustment pipe (31) is sleeved on the outside of the inner elastic cylinder (32) and connected to the inner elastic cylinder (32); the diameter adjustment pipe (31) includes multiple diameter adjustment rings (33); by adjusting the aperture of the multiple diameter adjustment rings (33) locally, the oil outlet aperture of the oil outlet channel (35) of the unit oil outlet pipe (3) is adjusted.

2. The structurally optimized electromagnetic directional valve according to claim 1, characterized in that, The column centerlines of the multiple caliber adjustment rings (33) are on the same straight line; The caliber adjustment ring (33) includes multiple arc-shaped telescopic plates (34), which are connected end to end to form a ring shape; the arc-shaped telescopic plates (34) can extend and retract along the arc trajectory.

3. The structurally optimized electromagnetic directional valve according to claim 1, characterized in that, The arc-shaped telescopic plate (34) includes: The storage plate (341) has a storage cavity; the storage plate (341) is arc-shaped, and the storage cavity is distributed along the main body of the storage plate (341), and the storage cavity is unidirectionally open; the arc of the storage plate (341) matches the arc of the storage cavity. An insert plate (342) is movably inserted inside the storage cavity; the curvature of the insert plate (342) matches the curvature of the storage cavity; an arc-shaped electric push rod is installed inside the storage cavity to control the extent to which the insert plate (342) inserts into the storage cavity.

4. The structurally optimized electromagnetic directional valve according to claim 3, characterized in that, The storage plate (341) is provided with an electric telescopic rod on its outer side. Both ends of the electric telescopic rod are provided with hinged balls. The electric telescopic rod is located between the oil outlet assembly (2) and the storage plate (341). The electric telescopic rod is respectively ball-hinged to the oil outlet assembly (2) and the storage plate (341) through the hinged balls.

5. The structurally optimized electromagnetic directional valve according to claim 1, characterized in that, The oil outlet assembly (2) includes: An external mounting platform (22) is detachably mounted on the reversing valve body (1); the reversing valve body (1) is provided with a mounting groove in cooperation with the external mounting platform (22); an oil outlet inner pipe (21) is provided through the external mounting platform (22), and multiple unit oil outlet pipes (3) are arrayed inside the oil outlet inner pipe (21); Two locking plates (23) are distributed on both sides of the outer mounting platform (22); the locking plates (23) are integrally fixedly connected to the outer mounting platform (22), and the locking plates (23) are L-shaped; Multiple bolts (24) are distributed on two locking plates (23); the bolts (24) are used to detachably install the locking plates (23) on the reversing valve body (1). Multiple threaded holes are provided on the reversing valve body (1) to cooperate with the multiple bolts (24), and the multiple threaded holes correspond one-to-one with the multiple bolts (24).

6. The structurally optimized electromagnetic directional valve according to claim 1, characterized in that, A sealing assembly (4) is installed at one end of the oil outlet assembly (2). The sealing assembly (4) is used to seal the oil outlet assembly (2) on the reversing valve body (1). A connecting pipe (11) is provided on the reversing valve body (1). The connecting pipe (11) is used to connect to the oil outlet assembly (2). A sealing groove (12) is provided on the reversing valve body (1) outside the connecting pipe (11) in cooperation with the sealing assembly (4). The sealing assembly (4) and the sealing groove (12) work together to seal and connect the oil outlet assembly (2) and the connecting pipe (11) in a unified manner.

7. The structurally optimized electromagnetic directional valve according to claim 6, characterized in that, The sealing assembly (4) includes: An inner gasket (41) is fitted over the outside of the connecting pipe (11); the inner gasket (41) is used to seal and connect the oil outlet assembly (2) and the connecting pipe (11) in a unified manner. A locking band (44) is wrapped around the outside of the inner pad (41); the locking band (44) is used to tightly lock the inner pad (41) to the connection between the oil outlet assembly (2) and the connecting pipe (11); A reinforcing member (43) is fitted over the inner pad (41) and positioned between the inner pad (41) and the locking band (44); the reinforcing member (43) is used to reinforce the connection between the inner pad (41) and the locking band (44) to the oil outlet assembly (2) and the connecting pipe (11); The outer casing (42) covers the outside of the inner pad (41), the reinforcement (43) and the locking band (44); the outer casing (42) is used to stably position the inner pad (41), the reinforcement (43) and the locking band (44) at the connection between the oil outlet assembly (2) and the connecting pipe (11).

8. The structurally optimized electromagnetic directional valve according to claim 7, characterized in that, The locking band (44) is wound in multiple turns, including: An inner locking ring (441) is used to tightly lock the inner gasket (41) to the connection between the oil outlet assembly (2) and the connecting pipe (11); the inner gasket (41) is located inside the inner locking ring (441); The outer locking ring (443) is an extension of the locking band (44) extending from the inner locking ring (441) and is used to be fitted onto the inner locking ring (441); the reinforcing member (43) is located between the inner locking ring (441) and the outer locking ring (443); The connecting frame (442) is fixed at the end of the inner locking ring (441); the connecting frame (442) is U-shaped, and the U-shaped sealing end of the connecting frame (442) is movably sleeved at the connection between the inner locking ring (441) and the outer locking ring (443).

9. The structurally optimized electromagnetic directional valve according to claim 7, characterized in that, An insert frame (421) is installed on the outer shell (42), which facilitates the outer end of the locking strap (44) to pass through.

10. The structurally optimized electromagnetic directional valve according to claim 7, characterized in that, The reinforcing member (43) includes: The connecting strip (433) is wound around the locking strip (44); Multiple abutment plates (431) are evenly distributed on the connecting strip (433); The gap (432) is opened on the connecting strip (433).

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