Ejection type conical valve
By adopting a floating connection structure and lifting drive mechanism in the conical valve, the adaptive swing and opening and closing action of the valve body is solved, and the problem of poor sealing caused by scratches is improved, the service life and sealing effect are improved, and material waste is reduced.
Patent Information
- Application Number
- CN202422084920.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-08-27
AI Technical Summary
During long-term use, the valve surface is scratched due to repeated opening and closing actions, and the gaps are difficult to completely seal, resulting in powder or small particles being easily leaked, resulting in waste of raw materials.
The ejection-out conical valve is adopted, and the valve seat and the valve body are connected through a floating connection structure, so that the valve body can swing relative to the valve seat when under pressure, achieving adaptive sealing, and the valve body is driven to complete the opening and closing action through the lifting and lowering driving mechanism.
It effectively reduces the impact of valve surface scratches, improves the service life of the valve, reduces material waste, and ensures complete sealing of the discharge port.
Smart Images
Figure CN222973672U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of packaging equipment, in particular to an ejecting conical valve. Background Art
[0002] Existing feeding devices are generally equipped with a special stop valve at the discharge port of the discharge pipe. The feeding action is controlled by controlling the opening and closing of the valve. Currently, the commonly used stop valve is generally a conical valve. The conical valve uses the characteristics of the conical body to seal the discharge port when closed. However, in actual use, since the conical valve is generally relatively fixed, the surface between the conical surface and the discharge port will be scratched due to repeated opening and closing actions during long-term use. In this way, gaps will appear at the severely scratched positions, making it difficult to be completely sealed. When the material in the discharge pipe is powder or granular material with small particle size, it is easy to leak from the gaps, resulting in waste of raw materials. Content of the Utility Model
[0003] The main technical problem to be solved by the utility model is to provide an ejecting conical valve, which can reduce the influence of valve surface scratching and improve the service life of the valve.
[0004] To solve the above technical problem, a technical solution adopted by the utility model is: to provide an ejecting conical valve, the ejecting conical valve is installed at the discharge port of the discharge pipe, and the ejecting conical valve includes: a valve body, a valve seat, a floating connector and a lifting drive mechanism. The valve body is triangular, and the valve body can just seal the discharge port of the discharge pipe. A bottom groove is provided at the middle position of the bottom of the valve body, and a through hole penetrating the top of the entire valve body is provided at the top of the bottom groove. The floating connector includes a floating joint, a joint fixing mechanism and a bottom shaft. The joint fixing mechanism fixes the floating joint in the through hole at the top of the valve body and is directly above the center of gravity of the valve body. One end of the bottom shaft is movably connected to the floating joint, and the other end is fixedly connected to the valve seat. A gap is left between the surface of the valve seat and the bottom of the valve body. The lifting drive mechanism is connected to the valve seat through a plurality of symmetrically arranged traction rods, and can drive the valve seat to reciprocate up and down through the traction rods, thereby driving the valve body to complete the opening and closing action of the discharge port.
[0005] In a preferred embodiment of the utility model, the joint fixing mechanism includes an upper connecting plate and a lower connecting plate. The lower connecting plate is arranged at the top of the bottom groove, and the upper connecting plate is arranged at the top of the valve body. The upper connecting plate and the lower connecting plate are connected by fastening bolts. Through holes are provided at the central positions of the upper connecting plate and the lower connecting plate. The top end of the floating joint passes through the through hole on the upper connecting plate and is fixed to the upper connecting plate through a nut. The top end of the bottom shaft extends into the through hole on the lower connecting plate and is connected to the floating joint.
[0006] The feed pipe includes a screw conveyor, a spiral casing, a dust suction pipe and a cut-off pipe. The screw conveyor is installed in the spiral casing, the dust suction pipe is sleeved outside the spiral casing, the traction rod is arranged in the space between the spiral casing and the dust suction pipe, the cut-off pipe is fixed on the pipe mouth of the spiral casing, the screw conveyor enters the cut-off pipe after passing through the spiral casing, and the ejection cone valve is installed on the pipe mouth of the cut-off pipe. The pipe mouth length of the dust suction pipe is greater than the length of the spiral casing, the tail end of the screw conveyor is located between the pipe mouth of the spiral casing and the pipe mouth of the dust suction pipe, and the pipe mouth of the cut-off pipe exceeds the pipe mouth of the dust suction pipe. The outer wall of the pipe mouth of the spiral casing is provided with a traction rod guide sleeve. A sintered mesh is also installed in the spiral casing, and the inner diameter of the sintered mesh is the same as the inner diameter of the cut-off pipe.
[0007] In a preferred embodiment of the utility model, the valve seat includes a bottom plate and a connecting plate, the lower end of the bottom shaft is fixed at the center of the bottom plate, the area of the bottom plate is larger than the opening area of the valve body groove, and the connecting plates are symmetrically distributed around the bottom plate, corresponding one by one to the traction position of the traction rod.
[0008] The beneficial effects of the utility model are as follows: the utility model is a further optimization on the basis of the existing discharge port conical valve installation structure, and the valve seat and the valve body are connected by adopting a floating connection structure, so that the valve body can swing relative to the valve seat when subjected to force, so that when actually closed, the valve body will adaptively change its posture according to the force conditions after being subjected to force, so as to achieve the purpose of sealing, and because the floating joint is arranged directly above the body center of gravity of the valve body, each time the valve is opened, the valve body will drop vertically under the action of the center of gravity and will not tilt in any direction, so that after loosening, the valve body will only rotate slightly in the horizontal direction, so that when closed next time, the conical surface of the valve body will change its contact position relative to the discharge port, so that the probability of difficult-to-close gaps appearing in the local position of the conical surface due to repeated scraping due to long-term repeated same actions will not be reduced, thereby improving the service life of the valve body and reducing material waste. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a front cross-sectional structural schematic diagram of a preferred embodiment of the utility model;
[0010] Figure 2 is a schematic diagram of a side cross-sectional structure of the illustrated embodiment;
[0011] The markings of the components in the accompanying drawings are as follows:
[0012] 1. Screw conveyor, 2. Screw casing, 3. Truncated connection pipe, 4. Dust suction pipe, 5. Towing rod, 6. Sintered mesh, 7. Valve body, 8. Bottom groove, 9. Floating joint, 10. Bottom shaft, 11. Upper connecting plate, 12. Lower connecting plate, 13. Tightening bolt, 14. Valve seat, 15. Towing rod guide sleeve. Detailed implementation mode
[0013] The following elaborates on the preferred embodiments of the present utility model in conjunction with the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the protection scope of the present utility model more clearly defined.
[0014] Please refer to Figure 1 and Figure 2 , the embodiments of the present utility model include:
[0015] A push-out type conical valve, the push-out type conical valve is installed at the discharge port of the blanking pipe, and the push-out type conical valve includes: a valve body 7, a valve seat 14, a floating connector and a lifting drive mechanism. The valve body 7 is triangular, and the valve body 7 can just close the discharge port of the blanking pipe. A bottom groove 8 is provided at the middle position of the bottom of the valve body 7, and a through hole penetrating the top of the entire valve body is provided at the top of the bottom groove 8. The floating connector includes a floating joint 9, a joint fixing mechanism and a bottom shaft 10. The joint fixing mechanism fixes the floating joint 9 in the through hole at the top of the valve body 7 and is directly above the center of gravity of the valve body 7. One end of the bottom shaft 10 is movably connected to the floating joint 9, and the other end is fixedly connected to the valve seat 14. A gap is left between the surface of the valve seat 14 and the bottom of the valve body 7. The lifting drive mechanism is connected to the valve seat 14 through 2 symmetrically arranged towing rods 5, and can drive the valve seat 14 to reciprocate up and down through the towing rods 5, thereby driving the valve body 7 to complete the opening and closing action of the discharge port. In actual use, the lifting drive mechanism is generally a towing cylinder arranged at the top end of the discharge pipe, and the telescopic rod of the towing cylinder drives the two towing rods 5 to act synchronously to drive the valve body 7 to complete the opening and closing action.
[0016] The joint fixing mechanism includes an upper connecting plate 11 and a lower connecting plate 12. The lower connecting plate 11 is disposed on the top of the bottom groove 8, and the upper connecting plate 11 is disposed on the top of the valve body 7. The upper connecting plate 11 and the lower connecting plate 12 are connected by fastening bolts 13. Through holes are provided at the central positions of the upper connecting plate 11 and the lower connecting plate 12. The top end of the floating joint 9 passes through the through hole on the upper connecting plate 11 and is fixed to the upper connecting plate 11 by a nut. The top end of the bottom shaft 10 extends into the through hole on the lower connecting plate 12 and is connected to the floating joint 9. In this way, the bottom shaft can swing within the range defined by the through hole on the lower connecting plate. On the one hand, when closing, the valve body 7 has sufficient adaptability and can adjust its posture according to the force condition to achieve complete closure of the discharge port. On the other hand, after opening, the deviation amplitude of the valve body 7 is not too large and will not affect the actions in the next cycle.
[0017] The blanking pipe includes a screw conveyor 1, a screw casing 2, a dust suction pipe 4, and a cut-off connecting pipe 3. The screw conveyor 1 is installed inside the screw casing 2. The dust suction pipe 4 is sleeved outside the screw casing 2. The traction rod 5 is arranged in the space between the screw casing 2 and the dust suction pipe 4. The cut-off connecting pipe 3 is fixed to the pipe orifice of the screw casing 2. A sintered mesh 6 is also installed inside the screw casing 2. The inner diameter of the sintered mesh 6 is the same as the inner diameter of the cut-off connecting pipe 4. The screw conveyor 1 passes through the screw casing 2 and enters the cut-off connecting pipe 3. The ejector cone valve is installed on the pipe orifice of the cut-off connecting pipe 3. The pipe orifice length of the dust suction pipe 4 is greater than the length of the screw casing 2. The tail end of the screw conveyor 1 is located between the pipe orifice of the screw casing 2 and the pipe orifice of the dust suction pipe 4. The pipe orifice of the cut-off connecting pipe 3 extends beyond the pipe orifice of the dust suction pipe 4. A traction rod guiding sleeve 15 is provided on the outer wall of the pipe orifice of the screw casing 2. In this way, the traction rod 5 is arranged between the dust suction pipe 4 and the screw casing 2, which not only does not affect the traction action but also makes the appearance more regular. The traction rod guiding sleeve 15 provided on the outer wall of the pipe orifice of the screw casing 2 can effectively limit the movement of the traction rod 5 and prevent the traction rod 5 from swaying left and right during movement, improving the action stability.
[0018] The valve seat 14 includes a bottom plate and connecting pieces. The end of the bottom shaft 10 is fixed to the central position of the bottom plate by a nut. The area of the bottom plate is larger than the area of the notch of the bottom groove 8. There are two connecting pieces in total, which are symmetrically distributed on both sides of the bottom plate and correspond one by one to the traction positions of the traction rod 5. In this way, the bottom plate is connected to the traction rod 5 through the connecting pieces. On the one hand, it can drive the valve body 7 as a support plate of the valve body, and on the other hand, it is larger than the notch of the bottom groove 8, which can prevent sundries from entering the groove.
[0019] The working principle of the present utility model is that when it is actually in use and the valve needs to be closed, the traction rod 5 drives the entire valve seat 14 to rise under the action of the lifting drive mechanism. Since the valve seat 14 and the valve body 7 are connected through the bottom shaft 10 and the floating joint 9 before, the valve body 7 can move relative to the valve seat 14 within the range defined by the round hole on the lower connecting plate 12. Therefore, during the closing process, the attitude will be automatically adjusted according to the force, achieving a tight seal of the discharge port and effectively preventing the problem of material leakage from the discharge port.
[0020] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.
Claims
1. A top-out cone valve, which is installed at the discharge port of a feed pipe, characterized in that: The ejection type conical valve comprises: a valve body, a valve seat, a floating connector and a lifting drive mechanism. The valve body is triangular and can just close the discharge port of the feed pipe. A bottom groove is provided in the middle of the bottom of the valve body, and a through hole is provided on the top of the bottom groove which runs through the entire top of the valve body. The floating connector comprises a floating joint, a joint fixing mechanism and a bottom shaft. The joint fixing mechanism fixes the floating joint in the through hole on the top of the valve body, and is directly above the center of gravity of the valve body. One end of the bottom shaft is movably connected to the floating joint, and the other end is fixedly connected to the valve seat. A gap is left between the surface of the valve seat and the bottom of the valve body. The lifting drive mechanism is connected to the valve seat through a plurality of symmetrically arranged traction rods, and can pull the valve seat to reciprocate up and down through the traction rods, thereby driving the valve body to complete the opening and closing action of the discharge port.
2. The ejection cone valve according to claim 1, characterized in that: The joint fixing mechanism includes an upper connecting plate and a lower connecting plate, the lower connecting plate is arranged at the top of the bottom groove, and the upper connecting plate is arranged at the top of the valve body. The upper connecting plate and the lower connecting plate are connected by fastening bolts, and the center positions of the upper connecting plate and the lower connecting plate are provided with through circular holes. The top end of the floating joint passes through the circular hole on the upper connecting plate and is fixed to the upper connecting plate by a nut, and the top end of the bottom shaft extends into the circular hole on the lower connecting plate and is connected to the floating joint.
3. The ejection cone valve according to claim 1, characterized in that: The feed pipe includes a screw conveyor, a spiral casing, a dust suction pipe and a cut-off pipe. The screw conveyor is installed in the spiral casing, the dust suction pipe is sleeved outside the spiral casing, the traction rod is arranged in the space between the spiral casing and the dust suction pipe, the cut-off pipe is fixed on the pipe mouth of the spiral casing, the screw conveyor enters the cut-off pipe after passing through the spiral casing, and the ejection cone valve is installed on the pipe mouth of the cut-off pipe.
4. The ejection cone valve according to claim 3, characterized in that: The length of the nozzle of the dust suction pipe is greater than the length of the spiral sleeve, the tail end of the screw conveyor is located between the nozzle of the spiral sleeve and the nozzle of the dust suction pipe, and the nozzle of the cut-off pipe exceeds the nozzle of the dust suction pipe.
5. The ejection cone valve according to claim 3, characterized in that: The outer wall of the spiral sleeve pipe mouth is provided with a traction rod guide sleeve.
6. The ejection cone valve according to claim 3, characterized in that: A sintered mesh is also installed in the spiral sleeve, and the inner diameter of the sintered mesh is the same as the inner diameter of the cut-off pipe.
7. The ejection cone valve according to claim 1, characterized in that: The valve seat includes a bottom plate and a connecting piece. The lower end of the bottom shaft is fixed at the center of the bottom plate. The area of the bottom plate is larger than the opening area of the valve body groove. The connecting pieces are symmetrically distributed around the bottom plate and correspond one-to-one to the traction positions of the traction rod.