Large flow one-way switch valve

Abstract

The utility model relates to fluid control equipment technical field discloses a large flow disposable on -off valve, including drive cylinder, valve body, valve seat, valve core, linkage, adapter and needle, drive cylinder and valve seat are located two sides of valve body respectively, and the side of drive cylinder sets up the connecting block, and one end of valve seat sets up at least one first screw hole that extends to the connecting block through itself, is equipped with first screw rod in first screw hole, passes through first screw rod and inserts valve seat and the first screw hole of connecting block in, to make valve seat and drive cylinder detachable connection, the both ends of valve body are seted up fluid inlet and fluid outlet, is equipped with valve cavity in valve body, and fluid inlet and fluid outlet are through valve cavity, and valve core sets up in valve cavity, and the one end of valve core is close to drive cylinder, extends to drive cylinder direction, and is detachable connection through linkage with the working end of drive cylinder, adapter sets up in the fluid outlet of valve body and is connected with needle, and this scheme is simple in structure, and is convenient to replace.

Description

Technical Field

[0001] This utility model relates to the field of fluid control equipment technology, specifically to a high-flow-rate one-time switching valve. Background Technology

[0002] In automated fluid dispensing and potting processes, on / off valves are commonly used to control the flow of adhesive. However, for high-viscosity fluids, especially ultra-high viscosity thermally conductive adhesives with viscosities reaching 150,000 cps, current technologies face significant challenges. 1. Difficult to clean: The adhesive residue is very easy to remain and solidify in the internal flow channels and sealing surfaces of the valve. Every time the machine is stopped or the type of adhesive is changed, organic solvents are required for tedious cleaning, which is time-consuming, labor-intensive and pollutes the environment.

[0003] 2. Stringing and dripping: Traditional direct-acting valves compress the fluid when closing, which easily causes stringing and internal seepage, contaminating the valve body and drive components, and affecting dispensing accuracy.

[0004] 3. The trade-off between flow rate and cost: While rotary valves (such as ball valves) can provide good shearing and cutting effects, they are usually designed for reusability, resulting in complex structures and high manufacturing costs. After use with high-viscosity adhesives, the cleaning costs and time are exorbitant. Furthermore, existing valves struggle to meet the demands of high flow rates (e.g., 0.7 ml / s) while simultaneously achieving a low-cost design suitable for single-use applications.

[0005] 4. Cumbersome operation: The process of disassembling, cleaning, and reinstalling increases the burden on operators and the downtime of equipment, reducing production efficiency.

[0006] Therefore, there is a need for a simple and easy-to-replace on / off valve. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a novel high-flow-rate disposable switching valve, which solves the problems of complex structure and difficult cleaning of existing switching valves.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: A high-flow-rate disposable switching valve for easy replacement includes a drive cylinder, a valve body, a valve seat, a valve core, a linkage, an adapter, and a needle. The drive cylinder and the valve seat are located on opposite sides of the valve body. A connecting block is provided on the side of the drive cylinder. One end of the valve seat has at least one first threaded hole that penetrates through itself and extends to the connecting block. A first threaded rod is provided in the first threaded hole. The first threaded rod is inserted into the first threaded holes of the valve seat and the connecting block to make the valve seat and the drive cylinder detachably connected. The valve body has a fluid inlet and a fluid outlet at both ends. The valve body has a valve cavity, and the fluid inlet and fluid outlet pass through the valve cavity. The valve core is disposed in the valve cavity. The valve core is located at one end near the drive cylinder, extends towards the drive cylinder, and protrudes from the valve body. It is detachably connected to the working end of the drive cylinder through the linkage. The adapter is located at the fluid outlet of the valve body and connected to the needle so that the needle communicates with the fluid outlet.

[0009] Furthermore, the driving cylinder is a rotary cylinder.

[0010] Furthermore, the linkage component includes linkage block one and linkage block two. The end of the valve core near the drive cylinder is connected to linkage block one, and the working end of the drive cylinder is connected to linkage block two.

[0011] Furthermore, a locking block is provided at one end of the linkage block one near the linkage block two, and a notch is provided at the lower part of the linkage block two near the linkage block one, corresponding to the position of the locking block.

[0012] Furthermore, a protrusion is provided on each of the two opposite sides of the middle of the card block.

[0013] Furthermore, the valve core has a through hole inside, and the diameter of the through hole is not less than 5mm.

[0014] Furthermore, a mounting groove is provided on the side of the valve seat near the drive cylinder, and the valve body is placed in the mounting groove.

[0015] Furthermore, a connecting seat is provided on the side of the valve seat away from the drive cylinder, and the bottom of the connecting seat is provided with a positioning groove that is compatible with the adapter.

[0016] Furthermore, the upper part of the connecting seat is provided with at least one second threaded hole that penetrates itself and extends to the valve seat. A second screw is provided in the second threaded hole. The second screw is inserted into the second threaded holes of the connecting seat and the valve seat so that the valve seat and the connecting seat can be detachably connected.

[0017] Furthermore, the adapter is a Luer adapter, and the needle is a beveled needle.

[0018] Compared to existing technologies, the advantages of this invention are that, by adopting the above solution, the structure is simple and suitable for conveying systems of high-viscosity, easily curable fluids (such as two-component adhesives and thermally conductive adhesives). First, the valve core is installed into the valve cavity of the valve body to form a sealing pair. Then, the valve seat is fitted onto the valve body, and the valve body is connected to the working end of the drive cylinder via a linkage. The first screw is then screwed into the first screw hole of the valve seat and connecting block to connect the valve seat and the drive cylinder. The needle is connected to the fluid outlet located at the bottom of the valve body via an adapter. During feeding, simply connect the feed pipe to the fluid inlet at the top of the valve body and the air pipe to the air source port of the drive cylinder. The drive cylinder operates, causing the valve core to rotate approximately 90 degrees, aligning the through hole inside the valve core with the flow channel of the valve body, thus opening the fluid passage. For replacement, simply insert and remove the feed pipe, unscrew the first screw, and disassemble the valve seat to remove the valve body for replacement. The replacement process can be completed within seconds, greatly improving equipment utilization and production efficiency, and possessing significant market application value. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a high-flow-rate one-time switching valve according to an embodiment of the present invention; Figure 2 For the present utility model Figure 1 A cross-sectional view of the high-flow-rate one-time switching valve in the embodiment; Figure 3 For the present utility model Figure 1 Exploded view of the high-flow-rate one-time switching valve in the embodiment; In the diagram, 1 is the drive cylinder; 11 is the connecting block; 2 is the valve body; 21 is the fluid inlet; 22 is the fluid outlet; 3 is the valve seat; 31 is the first screw hole; 32 is the first screw; 33 is the mounting groove; 34 is the connecting seat; 35 is the second screw hole; 36 is the second screw; 4 is the valve core; 5 is the linkage component; 51 is the first linkage block; 52 is the second linkage block; 53 is the locking block; 54 is the notch; 6 is the adapter; and 7 is the needle. Detailed Implementation

[0020] To facilitate understanding of this utility model by those skilled in the art, specific embodiments of this utility model are described below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described in this specification. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0021] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "mounted," "fixed," "end," "through," and similar expressions used in this specification are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0023] One embodiment of this utility model is as follows: Figure 1 , 2 As shown, this high-flow disposable switching valve, designed for easy replacement, includes a drive cylinder 1, a valve body 2, a valve seat 3, a valve core 4, a linkage 5, an adapter 6, and a needle 7. The drive cylinder 1 and the valve seat 3 are located on opposite sides of the valve body 2. A connecting block 11 is provided on the side of the drive cylinder 1. One end of the valve seat 3 has at least one first screw hole 31 that penetrates through itself and extends to the connecting block 11. A first screw 32 is provided in the first screw hole 31. The first screw 32 is inserted into the first screw hole 31 of the valve seat 3 and the connecting block 11, so that the valve seat 3 and the drive cylinder 1 can be detachably connected. The valve body 2 has a fluid inlet 21 and a fluid outlet 22 at both ends. The valve body 2 has a valve cavity inside. The fluid inlet 21 and the fluid outlet 22 pass through the valve cavity. The valve core 4 is disposed in the valve cavity. The valve core 4 is located at one end near the drive cylinder 1, extends towards the drive cylinder 1, and protrudes from the valve body 2. It is detachably connected to the working end of the drive cylinder 1 through the linkage 5. The adapter 6 is located at the fluid outlet 22 of the valve body 2 and is connected to the needle 7 so that the needle 7 communicates with the fluid outlet 22.

[0024] This high-flow-rate disposable on / off valve is designed for use in systems transporting high-viscosity, easily curable fluids (such as two-component adhesives and thermally conductive adhesives). First, the valve core 4 is installed into the valve cavity of the valve body 2, forming a sealing pair. Then, the valve seat 3 is fitted onto the valve body 2, and the valve body 2 is connected to the working end of the drive cylinder 1 via the linkage 5. Next, the first screw 32 is screwed into the first screw hole 31 of the valve seat 3 and the connecting block 11 to connect the valve seat 3 and the drive cylinder 1. The needle 7 is then inserted... The adapter 6 is connected to the fluid outlet 22 located at the bottom of the valve body 2. When feeding, simply connect the feed pipe to the fluid inlet 21 at the top of the valve body 2 and connect the air pipe to the air source port of the drive cylinder 1. The drive cylinder 1 works, driving the valve core 4 to rotate about 90 degrees, so that the through hole inside the valve core 4 is aligned with the flow channel of the valve body 2, and the fluid passage is opened. When replacing, simply insert and remove the feed pipe, unscrew the first screw to disassemble the valve seat, and the valve body can be taken out for replacement. The replacement process can be completed in a few seconds, which greatly improves the equipment utilization rate and production efficiency.

[0025] In this embodiment, as Figure 2 , 3 As shown, the driving cylinder 1 is a rotary cylinder.

[0026] Specifically, the rotary cylinder and the valve seat 3 are located on the left and right sides of the valve body 2, respectively. A connecting block 11 is screwed to the front side of the rotary cylinder. A first screw hole 31 is provided at the front end of the valve seat 3, which penetrates itself and extends to the connecting block 11. A first screw 32 is screwed into the first screw hole 31 of the valve seat 3 and the connecting block 11, so that the valve seat 3 and the drive cylinder 1 can be detachably connected.

[0027] Specifically, the rotary cylinder is equipped with an air source port to connect to an external air source. The air pressure of the external air source is 0.4MPa to 0.7MPa. The rotary cylinder is driven to rotate the valve core 4 by about 90 degrees, so that the through hole inside the valve core 4 is aligned with the flow channel of the valve body 2, and the fluid passage is opened. When closed, the rotary cylinder is driven in the opposite direction, causing the valve core 4 to rotate 90 degrees in the opposite direction. The rotational motion of the valve core 4 is used to shear the fluid and instantly cut off the flow channel.

[0028] The two-way valve body 2, Luer adapter and oblique needle 7 of the high flow one-time switching valve are connected in sequence to form a one-time use integrated functional module. The first screw is a Torx bolt to facilitate the disassembly of the valve seat and replacement of the valve body.

[0029] After one usage cycle, disconnect the gas line and inlet line, remove the entire integrated module (two-way valve body 2, Luer adapter, angled needle 7) from the equipment and discard it as a whole. Replace it with a new pre-installed integrated module.

[0030] In this embodiment, as Figure 2 , 3 As shown, the linkage 5 includes linkage block 1 51 and linkage block 2 52. The end of the valve core 4 near the drive cylinder 1 is connected to linkage block 1 51, and the working end of the drive cylinder 1 is connected to linkage block 2 52.

[0031] Specifically, the rotary cylinder is located on the left side of the valve body 2, with its output shaft pointing to the right. The second linkage block 52 is sleeved on the right end of the output shaft of the rotary cylinder. The left end of the valve core 4 extends to the left and protrudes from the valve body 2. The extended part is connected to the first linkage block 51. The first linkage block 51 and the second linkage block 52 are detachably connected so that the rotary cylinder drives the valve core 4 to rotate, thereby opening and closing the switch valve.

[0032] In this embodiment, as Figure 2 , 3 As shown, a locking block 53 is provided at one end of the first linkage block 51 near the second linkage block 52, and a notch 54 is provided at the lower part of the second linkage block 52 near the first linkage block 51, corresponding to the position of the locking block 53.

[0033] Specifically, the left end of the first linkage block 51 is provided with a locking block 53, and the right end of the second linkage block 52 is provided with a notch 54 that matches the locking block 53. When the valve body 2 and the rotary cylinder are assembled, the locking block 53 at the left end of the first linkage block 51 is inserted into the notch 54 at the right end of the second linkage block 52, which is mounted on the output shaft of the rotary cylinder, so that the rotary cylinder and the valve body 2 can be detachably connected.

[0034] In this embodiment, as Figure 2 , 3 As shown, each of the two opposite sides of the middle of the card block 53 has a protrusion.

[0035] Specifically, the protrusion has an arc-shaped structure, making the middle part of the locking block 53 circular, so as to strengthen the connection with the notch 54 at the right end of the linkage block 2 52, so as to transmit sufficient torque to overcome the viscous resistance of the high-viscosity fluid to the valve core 4.

[0036] In this embodiment, as Figure 2 , 3 As shown, the valve core 4 has a through hole inside, and the diameter of the through hole is not less than 5mm.

[0037] Specifically, the diameter of the through hole of the valve core 4 is not less than 5mm to ensure a large flow rate. The rotating cylinder is driven to rotate the valve core 4 by about 90 degrees, so that the through hole inside the valve core 4 is aligned with the flow channel of the valve body 2, the fluid passage is opened, the inner wall of the flow channel is smooth and there is no abrupt change in cross-section, so as to reduce the resistance to high viscosity fluids.

[0038] In this embodiment, as Figure 2 , 3 As shown, the valve seat 3 is provided with a mounting groove 33 on the side near the drive cylinder 1, and the valve body 2 is placed in the mounting groove 33.

[0039] Specifically, the left side of the valve seat 3 is provided with an installation groove 33 that is compatible with the valve body 2. During assembly, the valve core 4 is first installed into the valve cavity of the valve body 2 to form a sealing pair. Then, the valve body 2 is pressed into the installation groove 33 of the valve seat 3. Then, the locking block 53 at the left end of the linkage block 1 51 is inserted into the recess 54 at the right end of the linkage block 2 52 mounted on the output shaft of the rotary cylinder. Then, the first screw 32 is screwed into the first screw hole 31 of the valve seat 3 and the connecting block 11 to connect the valve seat 3 and the driving cylinder 1.

[0040] In this embodiment, as Figure 2 , 3 As shown, a connecting seat 34 is provided on the side of the valve seat 3 away from the driving cylinder 1, and the bottom of the connecting seat 34 is provided with a positioning groove that is adapted to the adapter 6.

[0041] Specifically, the lower part of the connecting seat 34 bends and extends toward the fluid outlet 22 at the bottom of the valve body 2, and a positioning groove is provided at its bottom to position the adapter 6 and to make the adapter 6 firmly connected to the valve body 2.

[0042] In this embodiment, as Figure 2 , 3 As shown, the upper part of the connecting seat 34 is provided with at least one second screw hole 35 that penetrates itself and extends to the valve seat 3. A second screw 36 is provided in the second screw hole 35. The second screw 36 is inserted into the second screw hole 35 of the connecting seat 34 and the valve seat 3 so that the valve seat 3 and the connecting seat 34 can be detachably connected.

[0043] Specifically, the connecting seat 34 is located at the right end of the valve seat 3. A second screw hole 35 is provided on the upper part of the connecting seat 34, which penetrates itself and extends to the valve seat 3. A second screw 36 is screwed into the second screw hole 35 of the connecting seat 34 and the valve seat 3 so that the valve seat 3 and the connecting seat 34 can be detachably connected.

[0044] In this embodiment, as Figure 2 , 3 As shown, the adapter 6 is a Luer adapter, and the needle 7 is a slanted needle.

[0045] Specifically, the high-flow disposable switching valve integrates the two-way valve body, Luer adapter, and angled needle into a disposable functional module that can be disposed of as a whole. After one use cycle, the valve seat can be disassembled and the valve body replaced simply by unscrewing the Torx bolt.

[0046] Furthermore, a shear-type opening and closing method is adopted, using a rotary cylinder to drive the valve core 4 to rotate 90 degrees to open and close the flow channel, and breaking the glue through shearing action to solve the stringing problem; for the specific performance target of achieving a flow rate of 0.7 ml / s at a viscosity of 150,000 cps, the diameter of the through hole of the valve core 4, the flow channel design, and the driving parameters are optimized and combined.

[0047] The high-flow, disposable on / off valve is completely cleaning-free, achieving zero pollution: Easily contaminated components are integrated into a disposable module, discarded entirely after use, fundamentally eliminating cross-contamination between different adhesives and tedious cleaning work, saving on cleaning agent and labor costs. It provides extremely clean dispensing, completely eliminating stringing: Utilizing a rotary cylinder-driven shearing opening and closing method, rather than the traditional squeeze-type closing, it can instantly cut the fluid like a knife, effectively solving the problems of stringing and dripping in high-viscosity fluids. It combines high flow rate and high viscosity handling capacity: Through optimized valve core 4-way diameter (≥5mm), flow channel design, and driving air pressure (0.4-0.7MPa), this invention can still achieve a maximum output flow rate of 0.7ml / s when handling ultra-high viscosity thermally conductive adhesives up to 150,000cps, meeting the needs of high-efficiency dispensing production. Extremely simple replacement operation, reducing downtime: The modular design makes replacement extremely simple. Simply plug and unplug the feed pipe, unscrew the first screw to disassemble the valve seat, and the valve body can be removed for replacement. The replacement process can be completed in seconds, greatly improving equipment utilization and production efficiency. Low overall cost: Despite integrating a cylinder, through simplified structure, the use of engineering plastics, and mass production, its unit cost is far lower than the cleaning and maintenance costs of reusable valves and the losses caused by downtime.

[0048] It should be noted that the above-mentioned technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification; and, for those skilled in the art, improvements or modifications can be made based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims of this utility model.

Claims

1. A high-flow-rate, one-time switching valve, used to facilitate valve replacement, characterized in that: The device includes a drive cylinder (1), a valve body (2), a valve seat (3), a valve core (4), a linkage (5), an adapter (6), and a needle (7). The drive cylinder (1) and the valve seat (3) are located on opposite sides of the valve body (2). A connecting block (11) is provided on the side of the drive cylinder (1). At least one first screw hole (31) is provided at one end of the valve seat (3) that penetrates itself and extends to the connecting block (11). A first screw (32) is provided in the first screw hole (31). The first screw (32) is inserted into the first screw hole (31) of the valve seat (3) and the connecting block (11) so that the valve seat (3) and the drive cylinder (1) can be detachably connected. The valve body (2) has a fluid inlet (21) and a fluid outlet (22) at both ends. The valve body (2) has a valve cavity inside. The fluid inlet (21) and the fluid outlet (22) pass through the valve cavity. The valve core (4) is located in the valve cavity. The valve core (4) is located near the end of the drive cylinder (1), extends towards the drive cylinder (1), and protrudes from the valve body (2). It is detachably connected to the working end of the drive cylinder (1) through the linkage (5). The adapter (6) is located at the fluid outlet (22) of the valve body (2) and connected to the needle (7) so that the needle (7) communicates with the fluid outlet (22).

2. The high-flow-rate one-time on / off valve according to claim 1, characterized in that, The driving cylinder (1) is a rotary cylinder.

3. The high-flow-rate one-time on / off valve according to claim 1, characterized in that, The linkage component (5) includes linkage block one (51) and linkage block two (52). The valve core (4) is connected to linkage block one (51) at one end near the drive cylinder (1), and the working end of the drive cylinder (1) is connected to linkage block two (52).

4. The high-flow-rate one-time on / off valve according to claim 3, characterized in that, A locking block (53) is provided at one end of the first linkage block (51) near the second linkage block (52). A notch (54) is provided at the lower part of the second linkage block (52) near the first linkage block (51) corresponding to the position of the locking block (53).

5. The high-flow-rate one-time on / off valve according to claim 4, characterized in that, The card block (53) has a protrusion on each of its two opposite sides in the middle.

6. The high-flow-rate one-time on / off valve according to claim 1, characterized in that, The valve core (4) has a through hole inside, and the diameter of the through hole is not less than 5mm.

7. The high-flow-rate one-time on / off valve according to claim 1, characterized in that, The valve seat (3) is provided with a mounting groove (33) on the side near the drive cylinder (1), and the valve body (2) is placed in the mounting groove (33).

8. The high-flow-rate one-time on / off valve according to claim 1, characterized in that, A connecting seat (34) is provided on the side of the valve seat (3) away from the driving cylinder (1), and the bottom of the connecting seat (34) is provided with a positioning groove that is compatible with the adapter (6).

9. The high-flow-rate one-time on / off valve according to claim 8, characterized in that, The upper part of the connecting seat (34) is provided with at least one second screw hole (35) that penetrates itself and extends to the valve seat (3). A second screw (36) is provided in the second screw hole (35). The second screw (36) is inserted into the second screw hole (35) of the connecting seat (34) and the valve seat (3) so that the valve seat (3) and the connecting seat (34) can be detachably connected.

10. The high-flow-rate one-time on / off valve according to claim 1, characterized in that, The adapter (6) is a Luer adapter, and the needle (7) is a slanted needle.

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