A special fluid valve with a ball-type connection mechanism

Abstract

This utility model discloses a special fluid valve with a bead-type connection mechanism, relating to the field of valve technology. It includes a valve body, valve disc, drive device, and bead-type connection mechanisms at both ends of the medium flow channel. The bead-type connection mechanism comprises a bead sleeve and a fastening nut. Both ends of the medium flow channel are provided with annular grooves and bottom connecting concave rings. One end of the bead sleeve has an interference fit with the connecting concave ring, while the outer wall of the other end forms an insertion groove with the inner wall of the annular groove. The fastening nut has a threaded fit with the end of the medium flow channel and includes a pressing part. After the hose is inserted, tightening the nut presses the hose against the bead sleeve to achieve a seal. The hose requires no prefabrication; it can be installed and removed simply by tightening / loosening the nut, requiring no special tools and offering high efficiency. The interference fit of the bead sleeve and the pressing of the nut form a double seal, preventing leakage. With only two core components—the bead sleeve and the nut—the processing and usage costs are low, and it can be reused for maintenance, resulting in excellent economic efficiency.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a special fluid valve with a ball-type connection mechanism. Background Technology

[0002] As a key control component in media conveying systems, the reliability of fluid valves' connections with hoses and the ease of assembly and disassembly directly affect system operation and maintenance efficiency. Current methods for connecting fluid valves and hoses include threaded connections, clamp connections, or adhesive connections. Threaded connections require pre-fabricated matching threads at the hose end, resulting in high processing costs and cumbersome operation due to repeated rotation during assembly and disassembly. Clamp connections, while simple in structure, are prone to loosening after prolonged use, leading to decreased sealing performance, and require specialized tools for assembly and disassembly. Adhesive connections are non-removable, requiring damage to the connection structure for repair or replacement, making them uneconomical.

[0003] In view of the problems of inconvenient disassembly and assembly, insufficient sealing reliability, or poor economy of the above connection methods, there is an urgent need for a fluid valve and hose connection mechanism with simple structure, convenient disassembly and assembly, and stable sealing performance to meet the actual needs of efficient operation and maintenance of fluid control systems. Utility Model Content

[0004] To address the shortcomings of the prior art, this utility model provides a special fluid valve with a bead-type connection mechanism.

[0005] The technical solution adopted by this utility model is: a special fluid valve with a bead-type connection mechanism, including a valve body, a valve plate and a driving device. The valve body is provided with a medium flow channel, and a valve seat adapted to the valve plate is provided in the medium flow channel. The driving device is used to drive the valve plate to move away from or towards the valve seat. The two ends of the medium flow channel are provided with bead-type connection mechanisms, which include bead sleeves and fastening nuts. The two ends of the medium flow channel are provided with annular grooves for installing bead sleeves, and the bottom of the annular grooves is provided with connecting concave rings. One end of the bead sleeve is provided with a connecting ring that is interference-fitted with the connecting concave ring, and the outer wall of the other end forms an insertion connecting groove with the inner wall of the ring groove. The fastening nut is threaded to the outer wall of the end of the medium flow channel, and a clamping part is provided inside the fastening nut.

[0006] Furthermore, the top of the inner wall of the connecting concave ring is provided with a "V"-shaped connecting part, and the bottom of the bead sleeve is provided with a "V"-shaped connecting groove that matches the "V"-shaped connecting part.

[0007] Furthermore, the insertion connection groove includes a straight cylindrical portion at the bottom and a tapered portion at the end, wherein the groove spacing of the tapered portion gradually decreases from the opening to the straight cylindrical portion.

[0008] Furthermore, the end of the bead sleeve furthest from the connecting ring is provided with an inlet bevel.

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

[0010] Furthermore, the outer wall of the fastening nut is provided with a number of long vertical strips at intervals, and at least one short vertical strip is provided between the long vertical strips.

[0011] The beneficial effects of this utility model are: 1. Convenient and efficient assembly and disassembly: Adopting a ball-type connection mechanism, the hose does not require pre-drilled threads or other complex structures. It is directly inserted between the ball sleeve and the clamping part of the fastening nut. The sealing connection is completed by tightening the fastening nut. When disassembling, simply loosen the nut in the opposite direction to pull out the hose. No special tools are required, which greatly simplifies the operation process and improves the efficiency of assembly and disassembly.

[0012] 2. High sealing reliability: The ball sleeve is interference-fitted with the connecting ring and the connecting groove of the medium flow channel to achieve a reliable connection between the ball sleeve and the valve body. When the fastening nut is tightened, its pressing part tightly presses the hose onto the ball sleeve, forming a double sealing and fastening guarantee, effectively avoiding medium leakage and adapting to the sealing requirements of fluid transportation.

[0013] 3. Simple structure and high economy: The connection mechanism consists of only a ball sleeve and a fastening nut, with fewer parts and lower processing difficulty; the hose does not require special processing, reducing the overall cost of use; at the same time, it avoids the structural damage problems of non-removable connections such as adhesives, and the valve body and connecting parts can be reused during maintenance and replacement, improving economy.

[0014] In addition to the objectives, features and advantages described above, this utility model has other objectives, features and advantages.

[0015] The present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is an exploded view of the present invention.

[0018] Figure 3 for Figure 1 Enlarged diagram of point A in the middle.

[0019] Figure 1-3In the middle section: 1. Valve body; 2. Valve plate; 3. Drive device; 4. Medium flow channel; 5. Valve seat; 6. Ball sleeve; 7. Fastening nut; 8. Ring groove; 9. Connecting concave ring; 10. Connecting ring; 11. Insertion connecting groove; 12. Pressing part; 13. "V" type connecting part; 14. "V" type connecting groove; 15. Straight cylinder part; 16. Conical part; 17. Inlet inclined surface; 18. Long vertical bar; 19. Short vertical bar. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0022] This invention provides a special fluid valve with a bead-type connection mechanism.

[0023] In this embodiment, refer to Figure 1-3 The special fluid valve with a bead-type connection mechanism includes a valve body 1, a valve plate 2, and a drive device 3. The valve body is provided with a medium flow channel 4, and a valve seat 5 adapted to the valve plate is provided in the medium flow channel 4. The drive device is used to drive the valve plate to move away from or towards the valve seat. The two ends of the medium flow channel are provided with bead-type connection mechanisms, which include bead sleeves 6 and fastening nuts 7. The two ends of the medium flow channel are provided with annular grooves 8 for installing bead sleeves, and the bottom of the annular grooves 8 is provided with connecting concave rings 9. One end of the bead sleeve is provided with a connecting ring 10 that is interference-fitted with the connecting concave ring, and the outer wall of the other end forms an insertion connecting groove 11 between the inner wall of the ring groove; The fastening nut is threaded to the outer wall of the end of the medium flow channel, and a clamping part 12 is provided inside the fastening nut.

[0024] In the above technical solution, annular grooves and bottom connecting concave rings are provided at both ends of the fluid valve medium flow channel. The ball sleeve is fixed in the annular groove by the end connecting ring and the connecting concave ring through an interference fit, forming an insertion connecting groove. The fastening nut is threaded with the end of the medium flow channel. By tightening the nut, the internal pressing part presses the hose inserted into the connecting groove against the ball sleeve, achieving a sealed connection. It is easy to assemble and disassemble, has a reliable seal, and a simple structure.

[0025] Specifically, the top of the inner wall of the connecting concave ring is provided with a "V"-shaped connecting part 13, and the bottom of the bead sleeve is provided with a "V"-shaped connecting groove 14 that matches the "V"-shaped connecting part.

[0026] In this embodiment, a "V"-shaped connecting part is provided at the top of the inner wall of the connecting concave ring, and a matching "V"-shaped connecting groove is provided at the bottom of the bead sleeve. During assembly, the two fit together, and the interference fit between the bead sleeve and the connecting concave ring forms a composite positioning structure, which increases the connection and sealing area of ​​the two and improves the sealing effect.

[0027] Specifically, the insertion connection groove includes a straight cylindrical portion 15 at the bottom and a tapered portion 16 at the end, and the groove spacing of the tapered portion gradually decreases from the opening to the straight cylindrical portion.

[0028] In this embodiment, the insertion connection groove is designed with a straight cylindrical section at the bottom and a tapered section at the end. The groove spacing of the tapered section gradually decreases from the opening to the straight cylindrical section, adapting to the guidance of the hose during insertion and the deformation after compression. When tightening the nut, the hose is squeezed along the tapered section to the straight cylindrical section, forming a gradual compression and avoiding local stress concentration. The transition structure between the tapered and straight sections ensures that the hose fully fits against the groove wall, enhancing sealing reliability.

[0029] Specifically, the end of the bead sleeve away from the connecting ring is provided with an inlet ramp 17.

[0030] In this embodiment, an inlet ramp is provided at the end of the bead sleeve away from the connecting ring, and the guiding characteristics of the ramp are used to adapt to the insertion of the hose and the clamping action of the fastening nut.

[0031] Specifically, the driving device is a cylinder.

[0032] In this embodiment, a cylinder is used as the driving device. The extension and retraction of the cylinder piston rod directly or indirectly drives the valve plate away from / near the valve seat, thereby realizing the on / off control of the medium flow channel.

[0033] Specifically, the outer wall of the fastening nut is provided with a number of long vertical strips 18 at intervals, and at least one short vertical strip 19 is provided between the long vertical strips 18.

[0034] In this embodiment, several long vertical strips are spaced apart on the outer wall of the fastening nut, with at least one short vertical strip between each long strip. This alternating concave-convex structure increases the friction of the hand or tools. It also serves as a reinforcing rib, increasing the overall strength of the fastening nut. Furthermore, the concave-convex structure allows for better contact with tools such as wrenches, preventing slippage and improving assembly / disassembly efficiency.

[0035] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.

Claims

1. A special fluid valve with a bead-type connection mechanism, comprising a valve body, a valve disc, and a drive device, wherein a medium flow channel is provided in the valve body, and a valve seat adapted to the valve disc is provided in the medium flow channel, and the drive device is used to drive the valve disc to move away from or towards the valve seat, characterized in that: Both ends of the medium flow channel are provided with bead-type connection mechanisms, which include bead sleeves and fastening nuts. Both ends of the medium flow channel are provided with annular grooves for installing bead sleeves, and the bottom of the annular grooves is provided with connecting concave rings. One end of the bead sleeve is provided with a connecting ring that is interference-fitted with the connecting concave ring, and the outer wall of the other end forms an insertion connecting groove with the inner wall of the ring groove. The fastening nut is threaded to the outer wall of the end of the medium flow channel, and a clamping part is provided inside the fastening nut.

2. The special fluid valve with a bead-type connection mechanism according to claim 1, characterized in that: The inner wall of the connecting concave ring is provided with a "V"-shaped connecting part at the top, and the bottom of the bead sleeve is provided with a "V"-shaped connecting groove that matches the "V"-shaped connecting part.

3. The special fluid valve with a bead-type connection mechanism according to claim 1, characterized in that: The insertion connection groove includes a straight cylindrical portion at the bottom and a tapered portion at the end, wherein the groove spacing of the tapered portion gradually decreases from the opening to the straight cylindrical portion.

4. The special fluid valve with a bead-type connection mechanism according to claim 1 or 3, characterized in that: The end of the bead sleeve furthest from the connecting ring is provided with an inlet ramp.

5. The special fluid valve with a bead-type connection mechanism according to claim 1, characterized in that: The driving device is a cylinder.

6. The special fluid valve with a bead-type connection mechanism according to claim 1, characterized in that: The outer wall of the fastening nut is provided with several long vertical strips at intervals, and at least one short vertical strip is provided between the long vertical strips.

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