A striker valve

Abstract

The present invention relates to a striker valve, which belongs to the field of mechanical technology. The present invention provides a striker valve, which includes a valve body, a striker seat and at least two groups of connecting devices, the connecting devices including an upper connecting member, a lower connecting member and a fastener, one of the side surfaces of the upper connecting member protrudes outward to form a convex block, the top surface and one of the side surfaces of the lower connecting member are simultaneously recessed inward to form a groove for accommodating the convex block, the fastener is screwed into the threaded holes of the lower connecting member and the upper connecting member in sequence, so that the lower connecting member and the upper connecting member are fastened together by the cooperation between the convex block and the groove, wherein the upper connecting member is fixed on the valve body, and the lower connecting member is fixed on the striker seat, so that the striker seat is fixed below the valve body by the cooperation between the upper connecting member and the lower connecting member, or the lower connecting member is fixed on the valve body, and the upper connecting member is fixed on the striker seat, so that the striker seat is fixed below the valve body by the cooperation between the lower connecting member and the upper connecting member.

Description

Technical Field

[0001] The invention relates to a striker valve and belongs to the technical field of machinery. Background Art

[0002] In industrial production, dispensing is needed in many places, such as integrated circuits, semiconductor packaging, printed circuit boards, color LCD screens, electronic components, automotive parts, etc.

[0003] Traditional glue dispensing is done manually by workers. With the rapid development of automation technology, manual glue dispensing can no longer meet industrial requirements.

[0004] The needle valve is a dispensing valve that can realize automatic dispensing. It needs to be used in conjunction with a continuous glue supply system and a continuous air supply system. It has a good control effect on fluids with too low viscosity.

[0005] However, the needle of the striker valve is easily damaged and is a consumable item, which needs to be replaced in time, and it is difficult to replace the needle of the existing striker valve. Therefore, it is urgent to find a striker valve with an easily replaceable needle. Summary of the invention

[0006] In order to solve the above problems, the present invention provides a striker valve, which includes a valve body, a striker seat located below the valve body, and at least two sets of connecting devices for fixing the striker seat below the valve body; the connecting device includes an upper connecting piece, a lower connecting piece and a fastener; the upper connecting piece is in the shape of a square, one of the side surfaces of the upper connecting piece protrudes outward to form a bump, the cross section of the bump is trapezoidal, and the cross-sectional area of ​​the bump becomes smaller and smaller in the direction toward the lower connecting piece; the lower connecting piece is in the shape of a square, the top surface and one of the side surfaces of the lower connecting piece are simultaneously recessed inward to form a groove for accommodating the bump; The bottom surface of the connecting piece is inward to form a threaded hole; the bottom surface of the lower connecting piece is recessed inward to form a threaded hole that passes through the groove; the fastener is screwed into the threaded holes of the lower connecting piece and the upper connecting piece in sequence, so that the lower connecting piece and the upper connecting piece are fastened together through the fit between the protrusion and the groove; the upper connecting piece is fixed to the valve body, and the lower connecting piece is fixed to the striker seat, so that the striker seat is fixed under the valve body through the fit between the upper connecting piece and the lower connecting piece, or, the lower connecting piece is fixed to the valve body, and the upper connecting piece is fixed to the striker seat, so that the striker seat is fixed under the valve body through the fit between the lower connecting piece and the upper connecting piece.

[0007] In one embodiment of the present invention, the portion of the groove close to the bottom surface is narrower than the portion of the protrusion close to the bottom surface, so that the connection strength between the upper connecting member and the lower connecting member can be increased as the depth of the fastener screwed into the protrusion increases.

[0008] In one embodiment of the present invention, the valve body includes an upper valve body and a lower valve body located below the upper valve body; the striker seat is located below the lower valve body; a first drive device and an air inlet are provided in the upper valve body; the first drive device includes a first inner cavity, and a spring and a piston located inside the first inner cavity; the spring is located above the piston, and its top end is connected to the top end of the first inner cavity, and its bottom end is connected to the top end of the piston; the air inlet is connected to the first inner cavity, so that the piston can move upward or downward under the action of the gas introduced into the air inlet; a liquid outlet device and a liquid inlet are provided in the lower valve body; The liquid outlet device includes a second inner cavity and a striker located inside the second inner cavity; the top end of the striker extends into the first inner cavity and is connected to the bottom end of the piston; the part of the second inner cavity close to the first inner cavity is in close contact with the striker, and a gap is left between the part away from the first inner cavity and the striker; the liquid inlet hole is connected to the second inner cavity, so that the liquid introduced into the liquid inlet hole can enter the gap between the second inner cavity and the striker; the striker seat includes a third inner cavity and a needle located inside the third inner cavity; the third inner cavity is in close contact with the needle, and the third inner cavity is connected to the second inner cavity, so that the liquid in the second inner cavity can flow into the needle.

[0009] In one embodiment of the present invention, the air inlet hole is connected to the first inner cavity through the bottom end of the first inner cavity, so that the piston can move upward under the action of the gas introduced into the air inlet hole.

[0010] In one embodiment of the present invention, the top end of the striker is inserted into the piston from the bottom end of the piston.

[0011] In one embodiment of the present invention, the needle partially extends downward from the bottom of the third inner cavity.

[0012] In one embodiment of the present invention, the striker seat further includes a fourth inner cavity for accommodating the bottom of the lower valve body; the fourth inner cavity is located above the third inner cavity, and the fourth inner cavity is communicated with the third inner cavity.

[0013] In one embodiment of the present invention, the fastener is a bolt.

[0014] In one embodiment of the present invention, a sealing ring is provided on the top surface of the firing pin seat.

[0015] In one embodiment of the present invention, the sealing ring is a rubber ring.

[0016] The technical solution of the present invention has the following advantages:

[0017] The present invention provides a striker valve, which comprises a valve body, a striker seat located below the valve body, and at least two sets of connecting devices for fixing the striker seat below the valve body, wherein the connecting device comprises an upper connecting piece, a lower connecting piece and a fastener, wherein one of the side surfaces of the upper connecting piece protrudes outward to form a convex block, and the top surface and one of the side surfaces of the lower connecting piece are simultaneously recessed inward to form a groove for accommodating the convex block, and the fastener is screwed into the threaded holes of the lower connecting piece and the upper connecting piece in sequence, so that the lower connecting piece and the upper connecting piece are fastened together through the cooperation between the convex block and the groove, wherein the upper connecting piece is fixed at On the valve body, the lower connecting piece is fixed on the striker seat, so that the striker seat is fixed under the valve body by the cooperation between the upper connecting piece and the lower connecting piece, or, the lower connecting piece is fixed on the valve body, and the upper connecting piece is fixed on the striker seat, so that the striker seat is fixed under the valve body by the cooperation between the lower connecting piece and the upper connecting piece; the needle of the striker valve is very easy to be damaged and is a consumable. The setting of the connecting device allows the striker valve of the present invention to quickly remove the needle when the needle needs to be replaced or overhauled, making the replacement or overhaul process of the needle more convenient (when replacing or overhauling the needle, the striker seat is generally replaced or overhauled as a whole).

[0018] Furthermore, the portion of the groove close to the bottom surface is narrower than the portion of the protrusion close to the bottom surface, so that the connection firmness between the upper connecting member and the lower connecting member can be increased as the screwing depth of the fastener in the protrusion increases.

[0019] Furthermore, a sealing ring is provided on the top surface of the striker seat, and the sealing ring can well fill the gap between the striker seat and the valve body to ensure the sealing performance between the striker seat and the valve body. In addition, the sealing ring is elastic and will be flattened when squeezed. Therefore, as the fastener is screwed into the protrusion more deeply, the filling degree of the upper connecting part in the lower connecting part also increases, and thus the sealing performance between the striker seat and the valve body is also better. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 : A schematic diagram of the overall structure of an implementation method of a needle valve of the present invention.

[0021] Figure 2 : A front view structural schematic diagram of an embodiment of the valve body of the striker valve of the present invention.

[0022] Figure 3 : A cross-sectional view in the front view direction of an embodiment of the valve body of the striker valve of the present invention.

[0023] Figure 4 : A right side structural schematic diagram of an embodiment of the valve body of the striker valve of the present invention.

[0024] Figure 5: A cross-sectional view of a valve body of a needle valve of the present invention as viewed from the right side.

[0025] Figure 6 : A schematic diagram of the overall structure of an embodiment of a connection assembly of a striker valve of the present invention.

[0026] Figure 7 : A schematic diagram of the overall structure of an embodiment of the upper connecting piece of the striker valve of the present invention.

[0027] Figure 8 : A schematic diagram of the overall structure of an implementation scheme of the lower connecting piece of the striker valve of the present invention.

[0028] Figure 1-8 In the figure, there are valve body 1, striker seat 2, connecting device 3, upper connecting piece 4, lower connecting piece 5, fastener 6, protrusion 7, groove 8, upper valve body 9, lower valve body 10, first drive device 11, air inlet 12, first inner cavity 13, spring 14, piston 15, liquid outlet device 16, liquid inlet 17, second inner cavity 18, striker 19, third inner cavity 20, needle 21, fourth inner cavity 22 and sealing ring 23. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with specific embodiments and drawings.

[0030] Example 1: A striker valve

[0031] like Figure 1-8The present invention provides a striker valve, which comprises a valve body 1, a striker seat 2 located below the valve body 1, and at least two groups of connecting devices 3 for fixing the striker seat 2 below the valve body 1; the connecting device 3 comprises an upper connecting piece 4, a lower connecting piece 5 and a fastener 6; the upper connecting piece 4 is in a square shape, one of the side surfaces of the upper connecting piece 4 protrudes outward to form a convex block 7, the cross section of the convex block 7 is a trapezoid, and the cross-sectional area of ​​the convex block 7 becomes smaller and smaller in the direction toward the lower connecting piece 5; the lower connecting piece 5 is in a square shape, the top surface and one of the side surfaces of the lower connecting piece 5 are simultaneously concave inward to form a groove 8 for accommodating the convex block 7; the bottom of the upper connecting piece 4 The bottom surface of the lower connecting member 5 is recessed inward to form a threaded hole extending through the groove 8. The fastener 6 is screwed into the threaded holes of the lower connecting member 5 and the upper connecting member 4 in sequence, so that the lower connecting member 5 and the upper connecting member 4 are fastened together by the fit between the protrusion 7 and the groove 8. The upper connecting member 4 is fixed on the valve body 1, and the lower connecting member 5 is fixed on the striker seat 2, so that the striker seat 2 is fixed below the valve body by the fit between the upper connecting member 4 and the lower connecting member 5. Alternatively, the lower connecting member 5 is fixed on the valve body 1, and the upper connecting member 4 is fixed on the striker seat 2, so that the striker seat 2 is fixed below the valve body 1 by the fit between the lower connecting member 5 and the upper connecting member 4.

[0032] Preferably, the portion of the groove 8 close to the bottom surface is narrower than the portion of the protrusion 7 close to the bottom surface, so that the connection strength between the upper connecting member 4 and the lower connecting member 5 can be increased as the screwing depth of the fastener 6 in the protrusion 7 increases.

[0033] Preferably, the valve body 1 includes an upper valve body 9, and a lower valve body 10 located below the upper valve body 9; the striker seat 2 is located below the lower valve body 10; a first drive device 11 and an air inlet 12 are provided in the upper valve body 9; the first drive device 11 includes a first inner cavity 13, and a spring 14 and a piston 15 located inside the first inner cavity 13; the spring 14 is located above the piston 15, and its top end is connected to the top end of the first inner cavity 13, and its bottom end is connected to the top end of the piston 15; the air inlet 12 is connected to the first inner cavity 13, so that the piston 15 can move upward or downward under the action of the gas introduced into the air inlet 12; a liquid outlet device 16 and a liquid inlet 17 are provided in the lower valve body 10; the liquid outlet device 16 includes A second inner cavity 18, and a striker 19 located inside the second inner cavity 18; the top end of the striker 19 extends into the first inner cavity 13 and is connected to the bottom end of the piston 15; the portion of the second inner cavity 18 close to the first inner cavity 13 is in close contact with the striker 19, and a gap is left between the portion away from the first inner cavity 13 and the striker 19; the liquid inlet hole 17 is connected to the second inner cavity 18, so that the liquid introduced into the liquid inlet hole 17 can enter the gap between the second inner cavity 18 and the striker 19; the striker seat 2 includes a third inner cavity 20, and a needle 21 located inside the third inner cavity 20; the third inner cavity 20 is in close contact with the needle 21, and the third inner cavity 20 is connected to the second inner cavity 18, so that the liquid in the second inner cavity 18 can flow into the needle 21.

[0034] Preferably, the air inlet hole 12 is connected to the first inner cavity 13 through the bottom end of the first inner cavity 18 , so that the piston 15 can move upward under the action of the gas introduced into the air inlet hole 12 .

[0035] Preferably, the top end of the striker 19 is inserted into the piston 15 from the bottom end of the piston 15 .

[0036] Preferably, the needle 21 partially extends downward from the bottom of the third inner cavity 20 .

[0037] Preferably, the striker seat 2 further includes a fourth inner cavity 22 for accommodating the bottom of the lower valve body 10 ; the fourth inner cavity 22 is located above the third inner cavity 20 , and the fourth inner cavity 22 is communicated with the third inner cavity 21 .

[0038] Preferably, the fastener 6 is a bolt.

[0039] Preferably, a sealing ring 23 is provided on the top surface of the striker seat 2 .

[0040] Preferably, the sealing ring 23 is a rubber ring.

[0041] Although the present invention has been disclosed as above in the form of a preferred embodiment, it is not intended to limit the present invention. Anyone familiar with this technology can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the definition of the claims.

Claims

1. A striker valve, characterized in that: The striker valve comprises a valve body, a striker seat located below the valve body, and at least two sets of connecting devices for fixing the striker seat below the valve body; the connecting device comprises an upper connecting piece, a lower connecting piece and a fastener; the upper connecting piece is in the shape of a square, one of the side surfaces of the upper connecting piece protrudes outward to form a bump, the cross section of the bump is trapezoidal, and the cross-sectional area of ​​the bump becomes smaller and smaller in the direction toward the lower connecting piece; the lower connecting piece is in the shape of a square, the top surface and one of the side surfaces of the lower connecting piece are simultaneously recessed inward to form a groove for accommodating the bump; the bottom surface of the upper connecting piece is inward, forming a The bottom surface of the lower connecting piece is inwardly recessed to form a threaded hole that penetrates to the groove; the fastener is screwed into the threaded holes of the lower connecting piece and the upper connecting piece in sequence, so that the lower connecting piece and the upper connecting piece are fastened together by the cooperation between the protrusion and the groove; the upper connecting piece is fixed to the valve body, and the lower connecting piece is fixed to the striker seat, so that the striker seat is fixed under the valve body by the cooperation between the upper connecting piece and the lower connecting piece, or the lower connecting piece is fixed to the valve body, and the upper connecting piece is fixed to the striker seat, so that the striker seat is fixed under the valve body by the cooperation between the lower connecting piece and the upper connecting piece; The valve body includes an upper valve body and a lower valve body located below the upper valve body; the striker seat is located below the lower valve body; a first drive device and an air inlet are provided in the upper valve body; the first drive device includes a first inner cavity, and a spring and a piston located inside the first inner cavity; the spring is located above the piston, and its top end is connected to the top end of the first inner cavity, and its bottom end is connected to the top end of the piston; the air inlet is connected to the first inner cavity, so that the piston can move upward or downward under the action of the gas introduced into the air inlet; a liquid outlet device and a liquid inlet are provided in the lower valve body; the liquid outlet ... The piston comprises a first inner cavity and a second inner cavity, and a striker located inside the second inner cavity; the top end of the striker extends into the first inner cavity and is connected to the bottom end of the piston; the portion of the second inner cavity close to the first inner cavity is in close contact with the striker, and a gap is left between the portion away from the first inner cavity and the striker; the liquid inlet is connected to the second inner cavity, so that the liquid introduced into the liquid inlet can enter the gap between the second inner cavity and the striker; the striker seat comprises a third inner cavity, and a needle located inside the third inner cavity; the third inner cavity is in close contact with the needle, and the third inner cavity is connected to the second inner cavity, so that the liquid in the second inner cavity can flow into the needle; A sealing ring is arranged on the top surface of the firing pin seat.

2. The striker valve according to claim 1, characterized in that The portion of the groove close to the bottom surface is smaller than the portion of the protrusion close to the bottom surface, so that the connection firmness between the upper connecting member and the lower connecting member can be increased as the screwing depth of the fastener in the protrusion increases.

3. The striker valve according to claim 1, characterized in that The air inlet hole is connected with the first inner cavity through the bottom end of the first inner cavity, so that the piston moves upward under the action of the gas introduced into the air inlet hole.

4. The striker valve according to claim 1, characterized in that The top end of the striker is inserted into the piston from the bottom end of the piston.

5. The striker valve according to claim 1, characterized in that The needle partially extends downward from the bottom of the third inner cavity.

6. The striker valve according to claim 1, characterized in that The striker seat also includes a fourth inner cavity for accommodating the bottom of the lower valve body; the fourth inner cavity is located above the third inner cavity, and the fourth inner cavity is communicated with the third inner cavity.

7. The striker valve according to claim 1 or 2, characterized in that: The fastener is a bolt.

8. The striker valve according to claim 1, wherein: The sealing ring is a rubber ring.

Images