A multi-pin valve island

Abstract

The present invention discloses a multi-pin valve island, which includes a manifold, an electric control box assembly arranged along the length direction of the manifold, and solenoid valves symmetrically arranged on both sides of the manifold and electrically connected to the electric control box assembly. An air inlet P and an air outlet A are provided on one side of the solenoid valve adjacent to the manifold. The manifold is provided with an air inlet channel, air guide channels corresponding to the solenoid valves one by one, and air outlet channels corresponding to the solenoid valves one by one. The air inlet P is communicated with the air inlet channel through the corresponding air guide channel. The first end of the air outlet channel is communicated with the corresponding air outlet A, and the second end of the air outlet channel is arranged at the other end of the manifold relative to the electric control box assembly. Through the above settings, the structure of the multi-pin valve island is more compact and has a higher integration level.

Description

Technical Field

[0001] The present invention relates to the technical field of valve islands, and particularly to a multi-pin valve island. Background Art

[0002] A valve island includes a plurality of valve units, and these valves are separate components with their own housings. The valves can be attached to a separate fastening structure, i.e., a separate component, close to each other in a straight line direction. The valves and a common fastening structure form a valve island, and the valves can be attached to and removed from the fastening structure. Thus, the valve island is a flexibly usable module, and the number of valves attached to the fastening structure can be easily adapted to the use and purpose of the valve island. The valve island is, for example, a component for actuating a complex pneumatic system, and a plurality of valves can thus be structurally combined at one position and can be supplied with electrical energy and fluid energy, for example, via a common central supply unit (by pneumatic or hydraulic control fluid).

[0003] An existing valve island, such as a bus valve island disclosed in a Chinese patent (application number CN202110689399.9), includes a busbar and a plurality of solenoid valves fixedly arranged on the upper end face of the busbar. The following disadvantages exist in this structure:

[0004] 1. The solenoid valves are arranged on the upper end face of the busbar. If the number of solenoid valves needs to be increased, the busbar must be replaced (the length of the busbar needs to be longer) to accommodate more solenoid valves. At the same time, since the length of the busbar increases, the overall volume of the valve island will inevitably become larger, and thus it does not meet the requirements of miniaturization and light weight.

[0005] 2. In an existing solenoid valve, a push rod assembly for overhauling or testing the solenoid valve is generally arranged along a direction perpendicular to the sliding direction of the moving iron core. The push rod pushes the moving iron core upward through an inclined surface to open the valve port. Since the contact area between the push rod and the moving iron core is small, the moving iron core is easily damaged during pushing. At the same time, the push rod assembly arranged along a direction perpendicular to the sliding direction of the moving iron core makes the overall lateral width of the valve island larger. Also, when the valve island is installed in a narrow space, due to space limitations, this structure is not conducive to the operation of the operator. Summary of the Invention

[0006] The purpose of the present invention is to provide a multi-pin valve island with a more compact structure and higher integration.

[0007] The above technical object of the present invention is achieved by the following technical solutions: A multi-pin valve island includes a manifold plate, an electric control box assembly arranged along the length direction of the manifold plate, and solenoid valves symmetrically arranged on both sides of the manifold plate and electrically connected to the electric control box assembly. An air inlet P and an air outlet A are provided on one side of the solenoid valve adjacent to the manifold plate. A gas guiding cavity communicating the air inlet P and the air outlet A is provided in the solenoid valve. A valve port for conducting or blocking the gas guiding cavity is provided in the solenoid valve. The manifold plate is provided with an air inlet passage, gas guiding channels corresponding to the solenoid valves one by one, and air outlet channels corresponding to the solenoid valves one by one. The air inlet P communicates with the air inlet passage through the corresponding gas guiding channel. The first end of the air outlet channel communicates with the corresponding air outlet A, and the second end of the air outlet channel is arranged at the other end of the manifold plate relative to the electric control box assembly.

[0008] Further, the solenoid valve includes a valve body, a sleeve, a moving iron core, a static iron core, and a coil. The sleeve is fixedly connected to the valve body. The static iron core is fixedly installed in the sleeve. The coil is wound around the outer periphery of the sleeve corresponding to the static iron core. The moving iron core is slidably arranged in the sleeve and is located at the lower end of the static iron core. A first sealing plug is provided at the lower end of the moving iron core corresponding to the position of the valve port. The gas guiding cavity is conducted or blocked by the vertical sliding of the moving iron core. A return spring for driving the moving iron core to move away from the static iron core is provided in the valve body.

[0009] Further, an installation cavity parallel to the sliding direction of the moving iron core is provided at the lower end of the valve body. A push rod assembly is arranged in the installation cavity. The push rod assembly includes a push rod and an insertion plate. The push rod is slidably configured in the installation cavity. A sealing ring for sealingly cooperating with the cavity wall of the installation cavity is provided on the outer periphery of the push rod. An elastic member for driving the push rod to move away from the moving iron core is provided in the installation cavity. The insertion plate is inserted into the valve body. The push rod is provided with a slot for plugging and cooperating with the insertion plate. The push rod is fixed in the installation cavity through the insertion plate. The valve port is opened by pushing the push rod inward to push the moving iron core upward.

[0010] Further, a receiving groove arranged perpendicular to the sliding direction of the push rod is provided in the valve body. The insertion plate is arranged in the receiving groove. The limit cooperation or release of the limit cooperation between the insertion plate and the push rod is realized by inserting and pulling out the insertion plate.

[0011] Further, a first exhaust passage communicating with the gas guiding cavity is provided in the moving iron core. A second exhaust passage communicating with the air is provided in the static iron core. A communication port for communicating the first exhaust passage and the second exhaust passage is provided at the lower end of the static iron core. A second sealing plug for sealing the communication port is provided at the upper end of the moving iron core.

[0012] Further, the electronic control box assembly includes a wiring base, a PCB board fixedly arranged inside the wiring base, and a connector socket arranged at one end of the wiring base and electrically connected to the PCB board. The wiring base is provided with a socket for the pins of the solenoid valve to extend into, and the PCB board is provided with a socket that is in plug-in fit with the pins.

[0013] Further, the wiring base is formed by snap-fitting a plurality of unit bases. Elastic clamping feet are arranged on both sides of the unit base, and the bus bar is provided with clamping grooves that are in clamping fit with the elastic clamping feet.

[0014] Further, a support column for supporting the PCB board is arranged at one end of the bus bar corresponding to the electronic control box assembly, and a limiting block for cooperating with the support column to fix the PCB board is arranged at the inner end of the wiring base.

[0015] Further, end caps are respectively arranged at both ends of the bus bar. One end cap is used to seal one port of the air inlet passage, and the other end cap is provided with an air inlet joint connecting the other port of the air inlet passage.

[0016] Further, the second end ports of the air outlet passages on both sides of the bus bar are arranged staggeredly.

[0017] In summary, the present invention has the following beneficial effects:

[0018] 1. Improve the gas path structures of the bus bar and the solenoid valve, so that the solenoid valve can be integrated on both sides of the bus bar, forming a multi-pin valve island with a more compact structure, higher integration level, and smaller size.

[0019] 2. Arrange the ejector rod assembly for overhauling or testing the solenoid valve in the installation cavity parallel to the sliding direction of the moving iron core, so that when the ejector rod is operated, the ejector rod can push the moving iron core inward. On the one hand, this arrangement increases the contact area between the ejector rod and the moving iron core to prevent the moving iron core from being damaged when the ejector rod pushes the moving iron core. On the other hand, arranging the ejector rod assembly in the installation cavity parallel to the sliding direction of the moving iron core can reduce the lateral width of the solenoid valve body, and further reduce the overall lateral width of the valve island, making the valve island more suitable for use in a narrow space.

[0020] 3. Set the wiring base of the control box assembly to be formed by snap-fitting a plurality of unit bases, so that the wiring base can be extended or shortened according to the number of solenoid valves arranged, without replacing the entire wiring base, thus greatly reducing the use cost of the wiring base. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of the first perspective of the present invention.

[0022] Figure 2 is a schematic structural diagram of the second perspective of the present invention.

[0023] Figure 3 It is a cross-sectional view of the first perspective of the present invention.

[0024] Figure 4 It is an enlarged view of part A of the present invention.

[0025] Figure 5 It is an enlarged view of part B of the present invention.

[0026] Figure 6 It is a schematic diagram of the connection structure of the unit base of the present invention.

[0027] Figure 7 It is a schematic diagram of the structure of the unit base of the present invention.

[0028] Figure 8 It is a cross-sectional view of the second perspective of the present invention.

[0029] Figure 9 It is a schematic diagram of the structure of the PCB board of the present invention.

[0030] In the figure: 1. Busbar; 11. Intake channel; 12. Air guide channel; 13. Outlet channel; 131. Outlet joint; 14. Card slot; 15. Support column; 16. End cover; 161. Intake joint; 2. Electric control box assembly; 21. Wiring seat; 211. Unit base; 2111. Card projection; 2112. Hook; 212. Elastic card foot; 213. Limit block; 22. PCB board; 23. Connector socket; 3. Solenoid valve; 31. Valve body; 311. Air guide cavity; 312. Valve port; 313. Installation cavity; 314. Accommodation groove; 32. Sleeve; 33. Moving iron core; 331. First exhaust channel; 332. First sealing plug; 333. Second sealing plug; 334. Flange; 34. Static iron core; 341. Second exhaust channel; 342. Communication port; 35. Coil; 36. Return spring; 37. Thumb rod assembly; 371. Thumb rod; 3711. Slot; 372. Insertion plate; 373. Sealing ring; 374. Elastic member. Detailed implementation manners

[0031] The present invention will be further described below with reference to the accompanying drawings.

[0032] As Figures 1-9As shown in the figure, a multi-needle valve island includes a manifold 1, an electric control box assembly 2 arranged along the length direction of the manifold 1, and solenoid valves 3 symmetrically arranged on both sides of the manifold 1 and electrically connected to the electric control box assembly 2. The solenoid valves 3 are fixedly installed on the manifold 1 through fastening devices. An air inlet P and an air outlet A are provided on one side of the solenoid valve 3 adjacent to the manifold 1. A gas guiding cavity 311 communicating the air inlet P and the air outlet A is provided in the solenoid valve 3. A valve port 312 capable of conducting or blocking the gas guiding cavity 311 is provided in the solenoid valve 3. The manifold 1 is provided with an air inlet passage 11, air guiding passages 12 corresponding to the solenoid valves 3 one by one, and air outlet passages 13 corresponding to the solenoid valves 3 one by one. The air inlet P of the solenoid valve 3 is communicated with the air inlet passage 11 through the corresponding air guiding passage 12. The first end of the air outlet passage 13 is communicated with the corresponding air outlet A, and the second end of the air outlet passage 13 is arranged at the other end of the manifold 1 relative to the electric control box assembly 2. A joint pipe is installed at the position of the manifold 1 corresponding to the second end of the air outlet passage 13.

[0033] Improve the gas path structures of the manifold 1 and the solenoid valve 3, so that the solenoid valves 3 can be arranged and integrated on both sides of the manifold 1, forming a multi-needle valve island with a more compact structure, higher integration degree and more miniaturization.

[0034] The solenoid valve 3 includes a valve body 31, a sleeve 32, a moving iron core 33, a static iron core 34 and a coil 35. The sleeve 32 is fixedly connected to the valve body 31. The static iron core 34 is fixedly installed in the sleeve 32. The coil 35 is wound around the position of the sleeve 32 corresponding to the outer circumference of the static iron core 34. The moving iron core 33 is slidably arranged in the sleeve 32 and is located at the lower end of the static iron core 34. A first sealing plug 332 is provided at the lower end of the moving iron core 33 corresponding to the position of the valve port 312. The gas guiding cavity 311 is conducted or blocked by the vertical sliding of the moving iron core 33. A return spring 36 for driving the moving iron core 33 to move away from the static iron core 34 is provided in the valve body 31. Specifically, a flange 334 is provided at one end of the moving iron core 33 corresponding to the valve port 312. The lower end of the return spring 36 acts on the flange 334, and the upper end of the return spring 36 acts on the valve body 31. In the present invention, the return spring 36 is a conical spring. The working principle of the solenoid valve 3: when the coil 35 of the solenoid valve 3 is energized, the moving iron core 33 slides upward along the sleeve under the suction of the static iron core 34, and then the first sealing plug 332 is disengaged from the valve port 312. At this time, the gas guiding cavity 311 is conducted, that is, the air inlet P is communicated with the air outlet A; when the coil 35 of the solenoid valve 3 is de-energized, the moving iron core 33 slides downward along the sleeve under the elastic force of the return spring 36, and then the first sealing plug 332 seals the valve port 312. At this time, the gas guiding cavity 311 is blocked, that is, the air inlet P is not communicated with the air outlet A.

[0035] Further, an installation cavity 313 is provided at the lower end of the valve body 31 and is arranged parallel to the sliding direction of the moving iron core 33. A push rod assembly 37 is arranged in the installation cavity 313. The push rod assembly 37 includes a push rod 371 and an insertion plate 372. The push rod 371 is slidably disposed in the installation cavity 313. A sealing ring 373 that is in sealing fit with the cavity wall of the installation cavity 313 is provided on the outer periphery of the push rod 371. An elastic member 374 for driving the push rod 371 to move away from the moving iron core 33 is provided in the installation cavity 313. The insertion plate 372 is inserted into the valve body 31. The push rod 371 is provided with a slot 3711 that is in plug-in fit with the insertion plate 372. The push rod 371 is fixed in the installation cavity 313 through the insertion plate 372. By pushing the push rod 371 inward, the push rod 371 can push the moving iron core 33 upward to open the valve port 312.

[0036] The push rod assembly 37 for overhauling or testing the solenoid valve 3 is arranged in the installation cavity 313 parallel to the sliding direction of the moving iron core 33, so that when the push rod 371 is operated, the push rod 371 can push the moving iron core 33 inward. On the one hand, this arrangement increases the contact area between the push rod 371 and the moving iron core 33 to prevent the moving iron core 33 from being damaged when the push rod 371 pushes the moving iron core 33. On the other hand, arranging the push rod assembly 37 in the installation cavity 313 parallel to the sliding direction of the moving iron core 33 can reduce the lateral width of the valve body 31 of the solenoid valve 3, and further reduce the overall lateral width of the valve island, making the valve island more suitable for use in a narrow space.

[0037] A receiving groove 314 is provided in the valve body 31 and is arranged perpendicular to the sliding direction of the push rod 371. The insertion plate 372 is arranged in the receiving groove 314. The operator can insert or pull out the insertion plate 372 from the slot 3711 of the push rod 371 by pulling the insertion plate 372, that is, the limiting fit or release of the limiting fit between the insertion plate 372 and the push rod 371 is realized by inserting and pulling out the insertion plate 372.

[0038] A first exhaust passage 331 communicating with the air guide cavity 311 is provided in the moving iron core 33. A second exhaust passage 341 communicating with the air is provided in the static iron core 34. A communication port 342 connecting the first exhaust passage 331 and the second exhaust passage 341 is provided at the lower end of the static iron core 34. A second sealing plug 333 for sealing the communication port 342 is provided at the upper end of the moving iron core 33.

[0039] The electric control box assembly 2 includes a wiring base 21, a PCB board 22 fixedly arranged inside the wiring base 21, and a connector socket 23 arranged at one end of the wiring base 21 and electrically connected to the PCB board 22. The wiring base 21 is provided with a socket for the pins of the solenoid valve 3 to extend into, and the PCB board 22 is provided with sockets that are plugged and matched with the pins. Specifically, one end of the bus bar 1 corresponding to the electric control box assembly 2 is provided with a support column 15 for supporting the PCB board 22, and the inner end of the wiring base 21 is provided with a limit block 213 that cooperates with the support column 15 to fix the PCB board 22.

[0040] The wiring base 21 is composed of a plurality of unit bases 211 buckled together. Specifically, one end of the unit base 211 is provided with a clamping protrusion 2111, the other end of the unit base 211 is provided with a clamping hook 2112 that is clamped and matched with the clamping protrusion 2111, and elastic clamping feet 212 are arranged on both sides of the unit base 211. The bus bar 1 is provided with a card slot 14 that is clamped and matched with the elastic clamping feet 212. The wiring base 21 of the control box assembly is arranged to be composed of a plurality of unit bases 211 buckled together, so that the wiring base 21 can be extended or shortened according to the number of solenoid valves 3 arranged, without replacing the entire wiring base 21, thereby greatly reducing the use cost of the wiring base 21.

[0041] End caps 16 are respectively arranged at both ends of the bus bar 1. One end cap 16 is used to seal one port of the air inlet channel 11, and the other end cap 16 is provided with an air inlet joint 161 connecting the other port of the air inlet channel 11. The connector socket 23 is arranged on the end cap 16 on the side of the air inlet joint 161.

[0042] The second end ports of the air outlet channels 13 on both sides of the bus bar 1 are arranged staggeredly, and the second end ports of the air outlet channels 13 are provided with air outlet joints 131. The staggered arrangement can prevent interference between the air outlet joints 131.

[0043] The above description is only a preferred embodiment of the present invention. Therefore, all equivalent changes or modifications made according to the structure, features, and principles described in the scope of the present invention patent application are included in the scope of the present invention patent application.

Claims

1. A multi-pin valve island, characterized in that: It includes a bus bar (1), an electronic control box assembly (2) arranged along the length direction of the bus bar (1), and electromagnetic valves (3) symmetrically arranged on both sides of the bus bar (1) and electrically connected to the electronic control box assembly (2). An air inlet P and an air outlet A are provided on one side of the electromagnetic valve (3) adjacent to the bus bar (1). The bus bar (1) is provided with an air inlet channel (11), air guide channels (12) corresponding to the electromagnetic valves (3) one by one, and air outlet channels (13) corresponding to the electromagnetic valves (3) one by one. The air inlet P communicates with the air inlet channel (11) through the corresponding air guide channel (12). The first end of the air outlet channel (13) is communicated with the corresponding air outlet A, and the second end of the air outlet channel (13) is arranged at the other end of the bus bar (1) relative to the electronic control box assembly (2). An air guide cavity (311) communicating the air inlet P and the air outlet A is provided in the electromagnetic valve (3). A valve port (312) capable of conducting or blocking the air guide cavity (311) is provided in the electromagnetic valve (3). The electromagnetic valve (3) includes a valve body (31), a sleeve (32), a moving iron core (33), a static iron core (34), and a coil (35). The sleeve (32) is fixedly connected to the valve body (31). The static iron core (34) is fixedly installed in the sleeve (32). The coil (35) is wound around the outer periphery of the sleeve (32) corresponding to the static iron core (34). The moving iron core (33) is slidably arranged in the sleeve (32) and is located at the lower end of the static iron core (34). A first sealing plug (332) is provided at the lower end of the moving iron core (33) corresponding to the position of the valve port (312). The air guide cavity (311) is conducted or blocked by the vertical sliding of the moving iron core (33). A return spring (36) for driving the moving iron core (33) to move away from the static iron core (34) is provided in the valve body (31). An installation cavity (313) arranged parallel to the sliding direction of the moving iron core (33) is provided at the lower end of the valve body (31). A push rod assembly (37) is arranged in the installation cavity (313). The push rod assembly (37) includes a push rod (371) and an insertion plate (372). The push rod (371) is slidably configured in the installation cavity (313). A sealing ring (373) in sealing cooperation with the cavity wall of the installation cavity (313) is provided on the outer periphery of the push rod (371). An elastic member (374) for driving the push rod (371) to move away from the moving iron core (33) is provided in the installation cavity (313). The insertion plate (372) is inserted into the valve body (31). The push rod (371) is provided with a slot (3711) in plug-in cooperation with the insertion plate (372). The push rod (371) is fixed in the installation cavity (313) through the insertion plate (372). By pushing the push rod (371) inward, the push rod (371) is used to push the moving iron core (33) to move upward to open the valve port (312).

2. The multi-needle valve island according to claim 1, characterized in that: A receiving groove (314) arranged perpendicular to the sliding direction of the push rod (371) is provided in the valve body (31). The insertion plate (372) is arranged in the receiving groove (314). The limit cooperation or release of the limit cooperation between the insertion plate (372) and the push rod (371) is realized by inserting and pulling out the insertion plate (372).

3. A multi-needle valve island according to claim 1, characterized in that: A first exhaust passage (331) communicating with the air guide chamber (311) is provided in the moving iron core (33), a second exhaust passage (341) communicating with the air is provided in the static iron core (34), a communication port (342) connecting the first exhaust passage (331) and the second exhaust passage (341) is provided at the lower end of the static iron core (34), and a second sealing plug (333) for sealing the communication port (342) is provided at the upper end of the moving iron core (33).

4. A multi-pin valve island according to claim 1, characterized in that: The electric control box assembly (2) includes a wiring base (21), a PCB board (22) fixedly arranged in the wiring base (21), and a connector socket (23) arranged at one end of the wiring base (21) and electrically connected to the PCB board (22). The wiring base (21) is provided with a socket for the pins of the solenoid valve (3) to extend into, and the PCB board (22) is provided with sockets that are inserted and matched with the pins.

5. A multi-pin valve island according to claim 4, characterized in that: The wiring base (21) is formed by snap-fitting a plurality of unit bases (211). Elastic clamping feet (212) are provided on both sides of the unit base (211), and the busbar (1) is provided with a card slot (14) that is snap-fitted with the elastic clamping feet (212).

6. A multi-pin valve island according to claim 4, characterized in that: One end of the busbar (1) corresponding to the electric control box assembly (2) is provided with a support post (15) for supporting the PCB board (22), and a limiting block (213) that cooperates with the support post (15) to fix the PCB board (22) is provided at the inner end of the wiring base (21).

7. A multi-pin valve island according to claim 1, characterized in that: End caps (16) are respectively provided at both ends of the busbar (1). One end cap (16) is used to seal one port of the intake passage (11), and the other end cap (16) is provided with an intake joint (161) connecting the other port of the intake passage (11).

8. A multi-needle valve island according to claim 1, characterized in that: The second end ports of the air outlet passages (13) on both sides of the busbar (1) are staggered.

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