A fluid valve with an inner liner

Abstract

The utility model discloses a lining fluid valve relates to valve technical field, including valve body, valve cover, transmission screw sleeve, valve piece screw rod, wheel disc, sealed valve piece and the newly added dial and indicating sleeve, the medium flow channel with lining is equipped in the valve body, and transmission screw sleeve and valve cover rotate and cooperate, and valve piece screw rod is connected with transmission screw sleeve and is sealed valve piece, and the dial of annular groove installation with slot and scale line is established to wheel disc, and the indicating sleeve is sleeved on valve piece screw rod and is equipped with the indicating board of adaptive slot, and the indicating board has the indicating slope of adaptive scale line. When rotating wheel disc drives valve piece screw rod up and down, and the indicating slope is aligned to different scale line and realizes the opening degree indication. Opening degree indication is direct, and control precision is improved, and the structure is simple and compact, and cost is reduced, and the original structure is adapted, and the compatibility is strong, and mechanical indication is stable and reliable, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a lined fluid valve. Background Technology

[0002] Lined fluid valves are widely used in the field of fluid control due to the protective effect of the lining on the medium flow channel. Their core is to use the valve plate screw to drive the sealing valve plate to adjust the opening degree, thereby realizing the medium flow and flow control.

[0003] Most existing lined fluid valves only have basic on / off and regulation functions, lacking an intuitive opening indication structure. Operators must rely on experience to judge the valve opening degree, making it difficult to accurately control the flow rate and significantly limiting their suitability for high-precision control scenarios. Some valves with opening indicators have complex structures, requiring additional independent transmission mechanisms linked to the indicator components, leading to increased manufacturing costs and reduced reliability.

[0004] Therefore, there is an urgent need for a lined fluid valve with a simple structure that can intuitively indicate the opening degree, in order to solve the problems of missing opening degree indication or complex structure in the existing technology. Utility Model Content

[0005] To address the shortcomings of the prior art, this utility model provides a lined fluid valve.

[0006] The technical solution adopted by this utility model is: a lined fluid valve, including a valve body, a valve cover, a transmission screw sleeve, a valve plate screw, a wheel disc and a sealing valve plate. The valve body is provided with a medium flow channel. The transmission screw sleeve is rotatably engaged with the valve cover. The valve plate screw is threadedly connected to the internal thread hole of the transmission screw sleeve. One end of the valve plate screw extends out of the valve cover and the other end extends into the valve cover and connects with the sealing valve plate. The medium flow channel is fixed with an inner liner. It also includes a scale and an indicator sleeve. The wheel is provided with a ring groove, and the aforementioned scale is installed in the ring groove. The scale is provided with a slot and scale lines, and the scale lines are spaced apart along the length of the slot. The indicator sleeve is fitted onto the valve plate screw. One side of the indicator sleeve is provided with an indicator plate that matches the slot, and the upper side of the indicator plate is provided with an indicator slope that matches the scale line.

[0007] Furthermore, the indicator sleeve is fitted onto the valve plate screw and then fixed to the valve plate screw by bolts.

[0008] Furthermore, the dial is covered with a transparent cover.

[0009] Furthermore, the transmission sleeve and the valve cover are rotated together via a bearing.

[0010] Furthermore, the bottom of the wheel is provided with a polygonal connection port, the upper end of the transmission screw sleeve is provided with a polygonal connection part that matches the polygonal connection port, and each side wall of the polygonal connection port is provided with a fastening screw hole.

[0011] Furthermore, the valve body and valve cover have outwardly extending fixed steps at their ends, and the outer ring of the sealing valve plate has a connecting portion extending into the fixed steps of the valve body and valve cover, and the fixed steps and the connecting portion are fixedly connected by bolts.

[0012] Furthermore, an upward protrusion forms a valve seat within the medium flow channel that is compatible with the sealing valve plate. The valve seat has a "V" shaped structure and a sealing plane is formed on its top.

[0013] The beneficial effects of this utility model are: 1. Achieve intuitive opening indication and improve control accuracy: By adding a dial and an indicator sleeve, when the rotating wheel drives the valve plate screw, the indicating slope of the indicator sleeve can be accurately aligned with different scale lines on the dial. Operators can intuitively obtain valve opening information without relying on experience, effectively solving the problem of ambiguous opening judgment in traditional lined fluid valves and adapting to the needs of high-precision flow control scenarios.

[0014] 2. Simple and compact structure, reducing implementation costs: The dial is installed through the annular groove of the wheel, and the indicator sleeve is directly fitted onto the valve plate screw and the indicator plate is adapted to the groove of the dial. There is no need to add an independent transmission or detection mechanism. While realizing the opening indication function, it does not significantly increase the overall structural complexity of the valve, which is easy to process and assemble and the manufacturing cost is controllable.

[0015] 3. Adaptable to existing structures and highly compatible: The new components are only compatible with existing core components such as the wheel disc and valve plate screw. There is no need to make major modifications to the main structure such as the valve body, valve cover, and sealing valve plate. It can be directly upgraded on the basis of existing lined fluid valves, with a wide range of applications and low modification difficulty.

[0016] 4. Stable and reliable indication, extended service life: The indicating sleeve moves synchronously with the valve disc screw, and the scale and the indicating plate are matched through a mechanical structure to achieve indication, avoiding problems such as the susceptibility of electronic components to media corrosion and electromagnetic interference. It can maintain stable indication performance under complex working conditions and improve the overall operational reliability of the valve.

[0017] In addition to the objectives, features and advantages described above, this utility model has other objectives, features and advantages.

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a cross-sectional schematic diagram of the present invention.

[0021] Figure 3 This is an exploded view of the present invention.

[0022] Figure 4 This is a schematic diagram of the transmission screw sleeve and the wheel.

[0023] Figure 1-4 In the middle section: 1. Valve body; 2. Valve cover; 3. Transmission screw sleeve; 4. Valve plate screw; 5. Wheel disc; 6. Sealing valve plate; 7. Medium flow channel; 8. Liner; 9. Dial; 10. Indicator sleeve; 11. Annular groove; 12. Slot; 13. Scale line; 14. Indicator plate; 15. Indicator bevel; 16. Bolt; 17. Transparent cover; 18. Bearing; 19. Polygonal connection port; 20. Polygonal connection part; 21. Fastening screw hole; 22. Fixing step; 23. Connection part; 24. Sealing plane; 25. Valve seat. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] This utility model provides a lined fluid valve.

[0027] In this embodiment, refer to Figure 1-4 The liner fluid valve includes a valve body 1, a valve cover 2, a transmission screw sleeve 3, a valve plate screw 4, a wheel 5, and a sealing valve plate 6. The valve body is provided with a medium flow channel 7. The transmission screw sleeve is rotatably engaged with the valve cover. The valve plate screw is threadedly connected to the internal thread hole of the transmission screw sleeve. One end of the valve plate screw extends out of the valve cover, and the other end extends into the valve cover and connects with the sealing valve plate. The medium flow channel is fixed with a liner 8. The valve also includes a scale 9 and an indicator sleeve 10. The wheel 5 is provided with a ring groove 11, and the aforementioned scale 9 is installed in the ring groove 11. The scale 9 is provided with a slot 12 and scale lines 13, and the scale lines are spaced apart along the length of the slot. The indicator sleeve is fitted onto the valve plate screw. One side of the indicator sleeve is provided with an indicator plate 14 that matches the slot. The upper side of the indicator plate 14 is provided with an indicator slope 15 that matches the scale line.

[0028] In the above technical solution, based on the existing lined fluid valve, a graduated dial with slots and scale lines is installed through the annular groove of the wheel. Simultaneously, an indicator sleeve is fitted onto the valve plate screw. The indicator plate of the indicator sleeve is adapted to the slot of the graduated dial (if the lifting length is too long and a larger indicator plate is required, a corresponding slot can also be set on the bottom wall of the annular groove, such as...). Figure 3 As shown, the indicating bevel of the indicator plate matches the scale lines. When the wheel is rotated, the transmission sleeve drives the valve plate screw to move up and down, synchronously driving the indicating sleeve to move, so that the indicating bevel aligns with different scale lines on the dial as the valve plate screw moves, forming a mechanically linked opening indication. By directly linking the valve plate screw movement and the scale indication through a mechanical structure, the valve opening can be displayed intuitively without an additional transmission mechanism, solving the problem of traditional valve opening judgment relying on experience; the structure is simple, achieving the function only through the cooperation of the dial and the indicating sleeve, without adding complex parts, reducing costs and facilitating assembly.

[0029] Specifically, the indicator sleeve is fitted onto the valve plate screw and then fixed to the valve plate screw by bolts 16.

[0030] In this embodiment, after the indicator sleeve is fitted onto the valve plate screw, it is axially fixed by bolts to ensure that the indicator sleeve and the valve plate screw move up and down synchronously, avoiding relative sliding between the two and causing indication errors.

[0031] Specifically, the dial is covered with a transparent cover 17.

[0032] In this embodiment, a transparent cover is placed over the dial to form a physical protective layer, which isolates the dial and indicator structure from external dust, moisture or other media.

[0033] Specifically, the transmission sleeve and the valve cover are rotated together via a bearing 18.

[0034] In this embodiment, the transmission sleeve and the valve cover are rotated together by a bearing, and the rolling friction of the bearing is used to replace the sliding friction, thereby reducing the resistance when the two rotate relative to each other.

[0035] Specifically, the bottom of the wheel is provided with a polygonal connection port 19, the upper end of the transmission screw sleeve is provided with a polygonal connection part 20 that is adapted to the polygonal connection port 19, and each side wall of the polygonal connection port is provided with a fastening screw hole 21.

[0036] In this embodiment, the wheel is circumferentially fixed by fitting its bottom polygonal connector with the upper polygonal connector of the transmission sleeve; axially fixed by tightening the bolts in the fastening screw holes, ensuring that the wheel and transmission sleeve rotate synchronously. The polygonal fit ensures efficient power transmission between the wheel and transmission sleeve and prevents slippage; the bolt tightening enhances connection stability, facilitates wheel disassembly and maintenance, and improves structural reliability and ease of repair.

[0037] Specifically, the valve body and valve cover have outwardly extending fixed steps 22 at their ends, and the outer ring of the sealing valve plate has a connecting portion 23 extending into the space between the fixed steps of the valve body and valve cover. The fixed steps and the connecting portion are fastened together by bolts.

[0038] In this embodiment, the fixed step of the valve body and valve cover is fixed to the outer ring of the sealing valve plate by bolts, so that the edge of the sealing valve plate is clamped and fixed, and at the same time, it forms an auxiliary seal at the connection between the valve body and the valve cover. This enhances the installation stability of the sealing valve plate and prevents it from shifting under medium pressure; at the same time, the cooperation between the connecting part and the fixed step improves the sealing performance at the joint between the valve body and the valve cover, preventing medium leakage.

[0039] Specifically, a valve seat 25 that is adapted to the sealing valve plate is formed by an upward protrusion inside the medium flow channel. The valve seat 25 has a "V" shaped structure and a sealing plane 24 is formed on its top.

[0040] In this embodiment, the top of the "V"-shaped valve seat in the medium flow channel forms a sealing plane. When it cooperates with the sealing valve plate, the sealing surface is made to fit together by the clamping force of the valve plate. The "V"-shaped structure can enhance the structural strength and pressure bearing capacity of the valve seat.

[0041] 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 lined fluid valve, comprising a valve body, a valve cover, a drive screw sleeve, a valve plate screw, a wheel disc, and a sealing valve plate, wherein a medium flow channel is provided in the valve body, the drive screw sleeve is rotatably engaged with the valve cover, the valve plate screw is threadedly connected to the internal thread hole of the drive screw sleeve, one end of the valve plate screw extends out of the valve cover, and the other end extends into the valve cover and connects to the sealing valve plate, and a liner is fixedly provided in the medium flow channel, characterized in that: It also includes a dial and indicator sleeve; The wheel is provided with a ring groove, and the aforementioned scale is installed in the ring groove. The scale is provided with a slot and scale lines, and the scale lines are spaced apart along the length of the slot. The indicator sleeve is fitted onto the valve plate screw. One side of the indicator sleeve is provided with an indicator plate that matches the slot, and the upper side of the indicator plate is provided with an indicator slope that matches the scale line.

2. The lined fluid valve according to claim 1, characterized in that: The indicator sleeve is fitted onto the valve plate screw and then fixed to the valve plate screw with bolts.

3. The lined fluid valve according to claim 1, characterized in that: The dial is covered with a transparent cover.

4. The lined fluid valve according to claim 1, characterized in that: The transmission sleeve and the valve cover are rotated together via a bearing.

5. The lined fluid valve according to claim 1, characterized in that: The bottom of the wheel is provided with a polygonal connection port, and the upper end of the transmission screw sleeve is provided with a polygonal connection part that matches the polygonal connection port. Each side wall of the polygonal connection port is provided with a fastening screw hole.

6. The lined fluid valve according to claim 1, characterized in that: The valve body and valve cover have outwardly extending fixed steps at their ends, and the outer ring of the sealing valve plate has a connecting portion extending into the fixed steps between the valve body and valve cover. The fixed steps and the connecting portion are fixedly connected by bolts.

7. The lined fluid valve according to claim 1, characterized in that: The medium flow channel has an upward protrusion forming a valve seat that matches the sealing valve plate. The valve seat has a "V" shaped structure and a sealing plane is formed on its top.

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