Spliced electromagnetic valve seat

Abstract

This invention discloses a solenoid valve accessory assembly, and more specifically, a modular solenoid valve seat. The key technical features are: a modular solenoid valve seat comprising at least two valve seat units connected end-to-end, each valve seat unit having an internally connected air intake pipe, and a venting groove on its surface. Each air intake pipe and venting groove has an air hole for connecting to the solenoid valve port. Each valve seat unit has a first limiting structure for inserting other valve seat units and creating bidirectional constraints in both the parallel end-to-end direction and the insertion direction. This invention has a simple structure, is tightly assembled, and can be flexibly assembled to adapt to different numbers of solenoid valves.

Description

Technical Field

[0001] This invention relates to the field of solenoid valve technology, and in particular to a modular solenoid valve seat. Background Technology

[0002] Solenoid valves are mainly divided into three types: pipe connection, plate connection, and series connection. Among them, plate connection solenoid valves must be equipped with corresponding solenoid valve seats during use.

[0003] Solenoid valve seats, also known as manifolds, typically adopt an integrated multi-position structure in the current market. (See attached image.) Figure 1 This means that a single solenoid valve seat is equipped with multiple air passages. In use, a single valve seat carries multiple sets of solenoid valves to form an integrated valve island. The valve seat is uniformly inlet, and each set of solenoid valves independently controls the air outlet and venting of the corresponding air passage on the valve seat.

[0004] In the production process of automated equipment, although the solenoid valve seat with the above-mentioned integrated multi-position structure can play the role of centralized air supply, exhaust and space saving, the number of solenoid valves required for the production of different equipment is not the same. This means that the valve seat manufacturer needs to customize and stock valve seats of different position models to meet customer needs. This not only extends the production and delivery cycle, but also indirectly increases the production cost. Summary of the Invention

[0005] The purpose of this invention is to provide a modular solenoid valve seat, which has the advantages of simple structure, tight assembly, and flexible assembly to adapt to different numbers of solenoid valves.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0007] A splicing solenoid valve seat includes at least two or more valve seat units connected end to end. Each valve seat unit has an internal air intake pipe that is interconnected with each other. The surface of each valve seat unit is provided with a venting groove. Each air intake pipe and venting groove has an air hole that connects to the solenoid valve port. Each valve seat unit is provided with a first limiting structure for inserting other valve seat units and generating bidirectional constraints in the parallel valve seat unit end-to-end direction and the insertion direction.

[0008] By adopting the above technical solution, the traditional integrated structure of solenoid valve seats has been changed. Users can insert any number of valve seat units end to end to obtain solenoid valve seats of corresponding number specifications to meet production assembly needs, which greatly simplifies the production process, eliminates the cost for manufacturers to customize solenoid valve seats of different numbers, and shortens the manufacturer's preparation cycle. In addition, the valve seat units are connected by plugging, and the valve seat units are constrained at the beginning and end and in the plugging direction, so that the valve seat assembly obtained by splicing is structurally reliable and not easy to separate when in use.

[0009] Further configuration: The first limiting structure includes a connecting groove disposed at the first end of the valve seat unit and a connecting part disposed at the last end of the valve seat unit. The width of the first end of the connecting part away from the valve seat unit is greater than the width of its last end near the valve seat unit, so that when the connecting part is inserted into the connecting groove, a lateral constraint parallel to the first and last directions of the valve seat unit is generated. It also includes a second limiting structure that generates a longitudinal constraint between the connecting part and the connecting groove.

[0010] By adopting the above technical solution, when the connecting part at the tail end of a single valve seat unit is longitudinally inserted into the connecting groove at the head end of another valve seat unit, the widths at the head and tail ends of the connecting part are different. When the valve seat units that are inserted into each other tend to separate in the head-to-tail direction under the action of external force, the head end with the larger width of the connecting part generates lateral constraint by adhering to and squeezing the inner wall of the connecting groove, thereby offsetting the external force and preventing the valve seat units from separating from each other. It can also offset the lateral pressure generated by the gas on the valve seat unit during the equipment ventilation process, thereby preventing air leakage.

[0011] Further configuration: The second limiting structure includes a first notch opened at the bottom of the connecting groove, and a first locking block that fits into the first notch is provided on the same side of the bottom of the connecting part. The first locking block forms a fitting connection with the first notch by its upper surface abutting against the lower surface of the first notch, thereby generating opposite longitudinal constraints on the valve seat units spliced ​​together in the insertion direction.

[0012] By adopting the above technical solution, not only can the valve seat unit be quickly positioned in the insertion direction by utilizing the mating relationship between the lower surface of the first notch and the lower surface of the first locking block during the valve seat unit insertion process, thus improving assembly efficiency; since the connecting parts and connecting grooves provided on both ends of the valve seat unit are subjected to opposite longitudinal constraints when they are inserted into the connecting grooves and connecting parts of other valve seat units, when several valve seat units are assembled into a valve seat assembly, the valve seat unit located in the middle of the valve seat assembly can be fixed in the insertion direction by the fitting of the first notch and the first locking block, thus improving the longitudinal stability of the valve seat assembly.

[0013] Further configuration: A second notch is provided on the upper surface of the first card block, and a second card block adapted to the second notch is provided on the upper surface of the first notch. The depth of the second notch is the same as the thickness of the second card block in the vertical direction, and the second card block fits against the bottom surface of the second notch through its lower surface.

[0014] By adopting the above technical solution, during the insertion process, the first locking block of the connecting part is embedded into the first notch of the mounting connecting groove, and at the same time, the second locking block on the surface of the first notch is embedded into the second notch on the surface of the first locking block, which changes the original unidirectional fitting assembly of the first locking block and the first notch into a bidirectional interlocking assembly, greatly improving the longitudinal splicing strength in the insertion direction and maximizing the clamping and fixing.

[0015] Further configuration: The upper surface of the tail end of the valve seat unit and the upper surface of the connecting part are respectively provided with the same mounting hole. A single solenoid valve is fixedly mounted on the mounting hole at the tail end of the target valve seat unit and the mounting hole of the connecting part of the adjacent valve seat unit by fasteners.

[0016] By adopting the above technical solution, the mounting holes of a single solenoid valve are distributed to address the fixed installation problem. This allows the solenoid valve to be simultaneously fixedly connected to the valve seat units that are spliced ​​together by fasteners. This provides additional lateral constraint to the valve seat units in the parallel head-to-tail direction, further improving the structural strength and assembly integrity of the invention.

[0017] Further configuration: The valve seat unit is provided with a sealing structure at the junction with the intake pipe. The sealing structure includes a groove on the surface of the valve seat, the groove annularly wrapping one end opening of the intake pipe, and also includes an elastic sealing element embedded in the groove, the thickness of the elastic sealing element being greater than the depth of the groove.

[0018] By adopting the above technical solution, the lateral constraint generated during the insertion of the connecting part and the connecting groove can cause the elastic seal in the groove to continuously undergo elastic deformation, thereby wrapping the opening of the valve seat unit's air intake pipe in a ring shape and sealing the air intake pipe circumferentially, effectively preventing air leakage.

[0019] Further configuration: The valve seat unit has slots at both ends that can be spliced ​​together. The slots of adjacent valve seat units are spliced ​​together and are fitted with buckles. The buckles are made of elastic material and deform under the support of the slots to apply opposing pressures to adjacent valve seat units.

[0020] By adopting the above technical solution, the integrity of the valve seat unit in the valve seat assembly in the head and tail direction can be further enhanced. The buckle is deformed by the buckle groove, and the valve seat units spliced ​​together are subjected to opposing compressive forces, so that the splicing surfaces of the head and tail of the valve seat units always maintain a tendency to fit together. The opposing compressive forces generated by the buckle are applied to the elastic seal in the groove through the splicing surface of the valve seat unit, so that it maintains a reliable sealing effect and improves the air tightness of the intake pipe.

[0021] Further configuration: The valve seat unit has a first notch at its front end and a second notch at its rear end. The first notch and the second notch are joined together at the front and rear ends of the valve seat unit to form a complete groove-shaped hole.

[0022] By adopting the above technical solution, fasteners such as screws can be added to the slot-shaped hole formed by the first notch and the second notch according to assembly needs, thereby strengthening the longitudinal constraint between adjacent valve seat units and improving assembly strength.

[0023] Further features: Both the connecting part and the connecting groove are provided with matching curved surface structures, and the intersection of adjacent surfaces of the connecting part and the connecting groove are provided with rounded corners.

[0024] By adopting the above technical solution, curved surface structures are set on the connecting part and the connecting groove, which increases the insertion area of ​​the connecting part and the connecting groove. When the valve seat unit is subjected to external force and tends to separate at both ends, the connecting part and the connecting groove are more likely to form surface contact, thereby improving the lateral constraint force.

[0025] Further detail: The valve seat unit is made of plastic.

[0026] By adopting the above technical solution, the valve seat unit can be produced by injection molding. Manufacturers only need to design the corresponding injection mold to achieve large-scale mass production. Since the valve seat unit is made of plastic injection molding, there is no need for surface drilling, oxidation and other finishing steps, which greatly shortens the production cycle and increases the production capacity. Attached Figure Description

[0027] Figure 1 This is an assembly diagram of a solenoid valve and valve seat in the prior art;

[0028] Figure 2 This is an assembly diagram of the valve seat assembly;

[0029] Figure 3 This is a schematic diagram of the structure at the beginning of the connecting groove of the spliced ​​solenoid valve seat;

[0030] Figure 4 This is a schematic diagram of the structure of the tail end of the spliced ​​solenoid valve seat connection part;

[0031] Figure 5 This is a schematic diagram of the envelope structure;

[0032] Figure 6 This is an assembly diagram of the valve seat unit.

[0033] Reference numerals: 1. Solenoid valve; 2. Integrated valve seat; 3. Valve seat unit; 4. Seal; 41. Vent; 42. Fastening hole; 5. Inlet pipe; 6. Vent groove; 7. Air hole; 8. First limiting mechanism; 81. Connecting groove; 82. Connecting part; 83. Second limiting structure; 831. First notch; 832. Second locking block; 833. Second notch; 834. Second locking block; 84. Curved surface structure; 85. Rounded corner; 86. First notch; 87. Second notch; 88. Slot; 89. Snap-on; 9. Sealing structure; 91. Groove; 92. Elastic seal; 10. Assembly hole. Detailed Implementation

[0034] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0035] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0036] In the description of this invention, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0037] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0038] like Figure 2 , Figure 3 As shown, in a preferred embodiment of the present invention, a modular solenoid valve seat includes a valve seat assembly composed of several valve seat units 3 with identical structures connected end-to-end. Corresponding sleeves 4 are added to the front and rear ends of the valve seat assembly to protect the exposed valve seat units 3 on both sides of the assembly. A first limiting structure 8 is also provided to fit and insert into the valve seat units 3 at both ends of the assembly. Each valve seat unit 3 has a built-in air inlet pipe 5, and the air inlet pipes 5 of the valve seat units 3 are interconnected. A venting groove 6 is provided on the surface of the valve seat unit 3. The air inlet pipe 5 and the venting groove 6 each have an air hole 7 for connecting to a solenoid valve 1. The air holes 7 are uniformly located on the upper surface of the valve seat unit 3. The valve seat unit 3 has a first limiting structure 8 for inserting into other valve seat units 3 and creating bidirectional constraints in both the head-to-tail direction and the insertion direction. In use, the corresponding number of valve seat units 3 can be assembled arbitrarily according to the number of solenoid valves 1, allowing for flexible assembly and reliable structure. Furthermore, the valve seat unit 3 in this invention is made entirely of plastic injection molding. Manufacturers only need to design the corresponding injection mold to achieve large-scale mass production. Since the valve seat unit 3 is made of plastic, there is no need for surface drilling, oxidation and other finishing steps, resulting in a shorter production cycle.

[0039] refer to Figure 3The first limiting structure 8 includes a connecting groove 81 at the head end of the valve seat unit 3 and a connecting part 82 at the tail end of the valve seat unit 3. The width of the front end of the connecting part 82 away from the valve seat unit 3 is greater than the width of its end near the valve seat unit 3. Since the widths of the two ends of the connecting part 82 are different, when the valve seat units 3 that are inserted into each other tend to separate in the head-to-tail direction under the action of external force, the wider front end of the connecting part 82 creates a lateral constraint by adhering to and pressing the inner wall of the connecting groove 81, thereby offsetting the external force and preventing the valve seat units 3 from separating from each other. It can also offset the lateral pressure generated by the gas on the valve seat unit 3 during the equipment ventilation process, thereby preventing air leakage. The first limiting structure 8 also includes a second limiting structure 83 that creates a longitudinal constraint between the connecting part 82 and the connecting groove 81.

[0040] refer to Figure 5 The front end of the valve seat assembly has a sleeve 4 with the same connecting groove 81 as the valve seat unit 3, and the front end of the sleeve 4 has a connecting part 82 with the same connecting part 3. The sleeve 4 is inserted into the valve seat unit 3 of the front and rear sections of the valve seat assembly through the connecting groove 81 and the connecting part 82. The two side sleeves 4 have vents 41 for connecting the air intake pipe 5 and fastening holes 42 for fastening the surface of the assembly station. During assembly, only screws and other fasteners need to be added to the fastening holes 42 on the surface of the sleeves 4 at both ends of the valve seat assembly to install the entire valve seat assembly on the target station. The valve seat units 3 in the valve seat assembly are fixed by interlocking with each other. In this embodiment, the connecting part 82 and the connecting groove 81 are set to the same dovetail shape. In addition, the connecting part 82 and the connecting groove 81 can also be set to a crescent shape, a hammer shape or other shapes that can generate lateral constraints. The openings of the air intake pipe 5 are respectively set at the front and rear ends of the valve seat unit 3, and there are two venting grooves 6, which are set on the opposite side of the valve seat unit.

[0041] refer to Figure 3 , Figure 4The second limiting structure 83 includes a first notch 831 opened at the bottom of the connecting groove 81. A first locking block 832 is provided on the same side of the bottom of the connecting part 82 to fit the first notch 831. The first locking block 832 forms a fitting connection with the first notch 831 by its upper surface abutting against the lower surface of the first notch 831. In this way, not only can the valve seat unit 3 be quickly positioned in the insertion direction by utilizing the cooperation relationship between the lower surface of the first notch 831 and the lower surface of the first locking block 832 during the insertion process, thus improving the assembly efficiency, but it also generates the opposite longitudinal constraint on the spliced ​​valve seat unit 3 in the insertion direction. Furthermore, a second notch 833 is laterally opened on the upper surface of the first locking block 832, and a second locking block 834 adapted to the second notch 833 is provided on the upper surface of the first notch 831. The depth of the second notch 833 is the same as the thickness of the second locking block 834 in the vertical direction. The second locking block 834 fits against the bottom surface of the second notch 833 through its lower surface, changing the original unidirectional fitting of the first locking block 832 and the first notch 831 into a bidirectional engagement, which greatly improves the longitudinal splicing strength in the insertion direction and maximizes the clamping and fixing. In addition, both the connecting part 82 and the connecting groove 81 are provided with a matching curved surface structure 84. The intersection of the adjacent surfaces of the connecting part 82 and the connecting groove 81 is provided with a rounded corner 85, which can increase the insertion area of ​​the connecting part 82 and the connecting groove 81. When the valve seat unit 3 is subjected to external force and tends to separate end to end, the connecting part 82 and the connecting groove 81 are more likely to form a surface contact, which improves the lateral restraint force.

[0042] refer to Figure 3 The valve seat unit 3 is also provided with a sealing structure 9 at the junction of the intake pipe 5. The sealing structure 9 includes a groove 91 on the surface of the valve seat. The groove 91 wraps around one end opening of the intake pipe 5 in an annular shape. An elastic sealing element 92 is embedded in the groove 91. The thickness of the elastic sealing element 92 is greater than the depth of the groove 91. When the two ends of the valve seat unit 3 are connected through the connecting part 82 and the connecting groove 81, the elastic sealing element 92 undergoes elastic deformation under the action of lateral extrusion force, and circumferentially wraps around the junction of the opening of the intake pipe 5 to prevent air leakage from the intake pipe 5.

[0043] refer to Figure 6 To meet the strength and production requirements of different working environments, the first limiting structure 8 in this invention is further provided with other structures. The valve seat unit 3 has a first notch 86 at its first end and a second notch 87 at its last end. The first notch 86 and the second notch 87 are joined together at the first and last ends of the valve seat unit 3 to form a complete slot-shaped hole. Screws and other fasteners are added inside the slot-shaped hole to provide additional longitudinal constraints for the valve seat unit 3, thereby improving the assembly strength in the insertion direction.

[0044] refer to Figure 6In addition, the valve seat unit 3 has splicable slots 88 at both ends. The slots 88 of adjacent valve seat units 3 are spliced ​​together and are fitted with buckles 89. The buckles 89 are made of elastic material and deform under the support of the slots 88 to apply opposing pressure to adjacent valve seat units 3, so that the splicing surfaces of the valve seat units 3 at both ends are kept tightly fitted, thereby continuously squeezing the elastic sealing element 92 and improving the airtightness of the equipment.

[0045] refer to Figure 6 The valve seat unit 3 and the connecting part 82 are each provided with mounting holes 10 for assembling the solenoid valve 1. When the valve seat unit 3 is spliced ​​with another valve seat unit 3, the hole spacing between the mounting holes 10 on the surface of the valve seat unit 3 and the mounting holes 10 on the surface of the connecting part 82 of the other valve seat unit 3 is the same as the hole spacing of the mounting hole of the solenoid valve 1. The purpose of this design is that when the valve seat units 3 are spliced ​​together to form a valve seat assembly, a single solenoid valve 1 can be connected to the adjacent spliced ​​valve seat units 3 through fasteners, so that the adjacent spliced ​​valve seat units 3 obtain additional lateral constraints, improve the assembly strength and integrity of the valve seat assembly, and improve the space utilization rate of the upper surface of the valve seat assembly through the above setting, which helps the manufacturer to reduce the overall volume of a single valve seat unit 3 and achieve the purpose of reducing costs.

[0046] The above embodiments are merely explanations of the present invention and are not intended to limit the present invention. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A modular solenoid valve seat, characterized in that: It includes two or more valve seat units (3) connected end to end. Each valve seat unit (3) has an air inlet pipe (5) built in and is connected to each other through the air inlet pipe (5). The surface of each valve seat unit (3) is provided with a vent groove (6). Each air inlet pipe (5) and vent groove (6) is provided with an air hole (7) for connecting to the solenoid valve (1). Each valve seat unit (3) is also provided with a first limiting structure (8) for inserting other valve seat units (3) and generating bidirectional constraints in the end-to-end direction and the insertion direction of the valve seat unit (3). The first limiting structure (8) includes a connecting groove (81) provided at the head end of the valve seat unit (3) and a connecting part (82) provided at the tail end of the valve seat unit (3). The width of the front end of the connecting part (82) away from the valve seat unit (3) is greater than the width of its end near the valve seat unit (3), so that when the connecting part (82) is inserted into the connecting groove (81), a lateral constraint parallel to the head and tail direction of the valve seat unit (3) is generated. It also includes a second limiting structure (83) that generates a longitudinal constraint between the connecting part (82) and the connecting groove (81). The second limiting structure (83) includes a first notch (831) opened at the bottom of the connecting groove (81), and a first locking block (832) that fits into the first notch (831) is provided on the same side of the bottom of the connecting part (82). The first locking block (832) forms a fitting connection with the first notch (831) by its upper surface abutting against the lower surface of the first notch (831), thereby generating opposite longitudinal constraints on the valve seat units (3) spliced ​​together in the insertion direction. The first card block (832) has a second notch (833) on its upper surface. The upper surface of the first notch (831) is provided with a second card block (834) that is adapted to the second notch (833). The depth of the second notch (833) is the same as the thickness of the second card block (834) in the vertical direction. The second card block (834) fits against the bottom surface of the second notch (833) through its lower surface.

2. The splicing solenoid valve seat according to claim 1, characterized in that: The upper surface of the tail end of the valve seat unit (3) and the upper surface of the connecting part (82) are respectively provided with the same mounting hole (10). The single solenoid valve (1) is fixedly installed on the mounting hole (10) at the tail end of the target valve seat unit (3) and the mounting hole (10) of the connecting part (82) of the adjacent valve seat unit (3) by fasteners.

3. The splicing solenoid valve seat according to claim 1, characterized in that: The valve seat unit (3) is provided with a sealing structure (9) at the junction of the intake pipe (5). The sealing structure (9) includes a groove (91) provided on the surface of the valve seat. The groove (91) is annularly wrapped around one end opening of the intake pipe (5). It also includes an elastic seal (92) embedded in the groove (91). The thickness of the elastic seal (92) is greater than the depth of the groove (91).

4. The splicing solenoid valve seat according to claim 3, characterized in that: The valve seat unit (3) has slots (88) at both ends that can be spliced. The slots (88) of adjacent valve seat units (3) are spliced ​​together and are fitted with buckles (89). The buckles (89) are made of elastic material and deform under the support of the slots (88) to apply opposing pressures to adjacent valve seat units (3).

5. The splicing solenoid valve seat according to claim 1, characterized in that: The valve seat unit (3) has a first notch (86) at its front end and a second notch (87) at its rear end. The first notch (86) and the second notch (87) are joined together by the valve seat unit (3) to form a complete slot-shaped hole.

6. The splicing solenoid valve seat according to claim 1, characterized in that: Both the connecting part (82) and the connecting groove (81) are provided with matching curved surface structures (84), and the intersection of adjacent surfaces of the connecting part (82) and the connecting groove (81) is provided with rounded corners (85).

7. The splicing solenoid valve seat according to any one of claims 1-6, characterized in that: The valve seat unit (3) is made of plastic.

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