Magnetic speed regulating valve
The external magnetic ring drives the movement of the internal valve core components, which solves the problems of the existing flow-limiting valve core being easily contaminated and complex structures and difficult to clean, and achieves a sterile design without dead corners, reducing production costs and part losses.
Patent Information
- Application Number
- CN202311301415.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-10
- Publication Date
- 2025-04-11
AI Technical Summary
The existing flow-limiting valves have problems such as easy contamination of the valve core, complex structure and difficult to clean, and increase production costs.
The external magnetic ring is used to drive the movement of the internal valve core components, achieving a sterile design without dead corners, which is convenient for cleaning and reduces part losses.
The external magnetic ring drives the valve core assembly to move, realize high-speed and slow movement of the speed control valve, reduce production costs, and improve cleaning convenience.
Smart Images
Figure CN119802313A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of speed regulating valves, and in particular to a magnetic speed regulating valve. Background Art
[0002] In general filling situations, the traditional flow limiting valve can achieve the flow limiting effect by adding a flow limiting plate to the front end of the filling pipeline, but the flow limiting plate achieves the adjustment effect through the size of the throttle hole and has no adjustment effect. In actual application, it is necessary to match different liquid flow rates for different use occasions. At present, the flow limiting valve uses an electromagnetic coil to form a magnetic field as the control power. Under the action of the electromagnetic coil, the flow limiting valve can be controlled. There are also direct cylinder control methods. The flow limiting valve is driven up and down by the cylinder. Therefore, when connected to the cylinder, the filling valve needs to be equipped with a set of dynamic sealing devices. At the same time, the interior of the flow limiting valve contains a complex valve core structure. The flow rate of the flow limiting valve is adjusted by controlling the valve core. Therefore, the valve core will be in contact with the material for a long time, which is easy to cause pollution. The complex valve core structure has multi-directional dead corners that are difficult to clean, and it is easy to breed bacteria and increase the risk of leakage. The external connection structure also requires additional connection structures, which increases the production cost. Summary of the invention
[0003] In order to overcome the shortcomings of the above-mentioned prior art, the purpose of the present invention is to provide a magnetic speed control valve, which drives the movement of the internal valve core assembly by an external magnetic ring, thereby realizing a sterile design with no dead angles, facilitating cleaning, and reducing parts loss; the external magnetic ring and the bracket are integrated into one design to reduce space, which is smart and practical and convenient for use in various occasions.
[0004] To achieve the above-mentioned purpose, the technical scheme provides a magnetic speed control valve, including a valve body assembly and a cylinder assembly, the valve body assembly including a valve sleeve, a valve body which is sleeved on the valve sleeve and can be displaced left and right, a first flange is provided at one end of the valve sleeve; a second flange is connected to one end of the valve body; the cylinder assembly is installed on the first flange; a valve core assembly which can move in the valve sleeve is provided in the valve sleeve, the valve core assembly includes a valve core, a valve core column connected to the valve core, a valve core magnet is provided in the valve core column; a magnetic ring is provided between the valve body and the valve sleeve; a connecting cover is installed on the first flange.
[0005] Furthermore, in order to provide displacement power for the valve body, the cylinder assembly includes a cylinder sleeve, a connecting block installed on the cylinder sleeve and a piston rod, one end of the piston rod passes through the connecting block and is installed in the cylinder sleeve; the cylinder sleeve is fixed on the first flange; a sealing sleeve is provided at one end of the piston rod located in the cylinder sleeve, a retaining ring is provided on the piston rod in front of the sealing sleeve, the other end of the piston rod extends out of the cylinder sleeve and is connected to the second flange, a bushing is provided between the piston rod and the connecting block, and a joint is provided between the piston rod and the second flange.
[0006] Furthermore, the magnetic ring is fixedly mounted on the second flange.
[0007] Furthermore, a material port is provided on the valve core.
[0008] Furthermore, to ensure that the valve core assembly can be effectively driven within a short stroke, the valve core magnets are provided in two pieces, the two valve core magnets are separated by a first spacer, and the valve core magnets are arranged opposite to each other with the same poles.
[0009] Furthermore, to ensure that the valve core assembly can be effectively driven, the magnetic ring is composed of four magnet columns and is equidistantly surrounded by the valve core assembly. The magnet columns are respectively composed of a press sleeve and two magnetic strips installed in the press sleeve. A spacer is provided between the magnetic strips, and the magnetic strips are arranged opposite to each other with the same poles; a threaded end cover is provided on the second flange, and the press sleeve is fixed on the end cover; the cylinder assembly is installed between the magnet columns.
[0010] Furthermore, a piston spring is provided between the sealing sleeve and the connecting block; a sealing bracket is provided between the sealing sleeve and the inner wall of the cylinder sleeve, and a sealing ring is provided between the sealing bracket and the sealing sleeve.
[0011] Furthermore, a first opening is provided at one end of the valve sleeve, and a second opening is provided on the connecting cover, so that the connecting cover and the valve sleeve are sealed and connected.
[0012] Furthermore, an O-ring is provided between the valve core and the valve core column; a connecting cover is also provided on one side of the valve body, and an O-ring is provided between the connecting cover and the valve body.
[0013] Preferably, the magnetic strip and the valve core magnet are both bar magnets.
[0014] The beneficial effects of the present invention are: a magnetic speed regulating valve, composed of a valve body assembly and a cylinder assembly, the valve body assembly includes a valve sleeve, a valve body sleeved on the valve sleeve and capable of left and right displacement, a first flange being provided at one end of the valve sleeve; a second flange being connected to one end of the valve body, the cylinder assembly being mounted on the first flange, the cylinder assembly including a cylinder sleeve, a connecting block and a piston rod being mounted on the cylinder sleeve, one end of the piston rod being installed in the cylinder sleeve through the connecting block; a sealing sleeve being provided at one end of the piston rod located in the cylinder sleeve, the other end of the piston rod extending out of the cylinder sleeve and being connected to the second flange through a joint, and the valve body being driven by the cylinder to move on the valve sleeve.
[0015] A valve core assembly that can move in the valve sleeve is provided in the valve sleeve, and the valve core assembly includes a valve core and a valve core column connected to the valve core, and a valve core magnet is provided in the valve core column; a magnetic ring is provided between the valve body and the valve sleeve, and the magnetic ring is composed of four magnet columns and surrounds the valve core assembly equidistantly for one circle, and the magnetic column is composed of two magnetic strips, and a spacer is provided between the magnetic strips, and each magnetic strip is installed in a manner that the same poles are arranged opposite to each other (i.e., N pole to N pole). The second flange sleeve is connected to the valve body on the valve sleeve, and the magnet column is fixedly installed on one side of the second flange. When the external magnetic ring moves, the interaction between the magnetic poles drives the valve core assembly to move in the same direction, thereby realizing high-speed and slow-speed actions of the speed regulating valve. Therefore, the internal valve core is driven by the external magnetic ring, so as to realize a sterile design without dead angles, facilitate cleaning, and reduce parts loss; the external magnetic ring and the bracket are designed as a whole, which reduces space, is smart and practical, and is convenient for use in various occasions. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] For ease of explanation, the present invention is described in detail with reference to the following preferred embodiments and the accompanying drawings.
[0017] Figure 1 It is a schematic diagram of the overall structure of a magnetic speed regulating valve of the present invention; Figure 2 It is a structural schematic diagram of a magnetic speed regulating valve of the present invention after eliminating the valve body; Figure 3 It is a front view of a magnetic speed regulating valve of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of a magnetic speed regulating valve in a low-speed state of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of a magnetic speed regulating valve in a high-speed state of the present invention; Figure 6 It is a schematic diagram of the magnetic pole position of a magnetic speed regulating valve in a low-speed state of the present invention; Figure 7 It is a schematic diagram of the magnetic pole position of a magnetic speed regulating valve in a high-speed state according to the present invention.
[0018] In the figure: valve body assembly 1, cylinder assembly 2, valve sleeve 3, valve body 4, first flange 31, second flange 41, valve core assembly 5, valve core 51, valve core column 52, valve core magnet 53, magnetic ring 6, connecting cover 7, cylinder sleeve 21, connecting block 22, piston rod 23, sealing sleeve 24, material port 511, first diaphragm 531, magnet column 61, magnetic strip 611, diaphragm 62, piston spring 25, sealing bracket 26, bushing 27, joint 28, sealing ring 8, first opening 32, second opening 71, O-ring 9, pressing sleeve 612, fixing seat 411, retaining ring 29, cylinder air port 211. Implementation
[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
[0021] The magnetic speed regulating valve of the present invention is further described below with reference to the accompanying drawings: like Figure 1-7 A magnetic speed regulating valve shown in the figure comprises a valve body assembly 1 and a cylinder assembly 2. The valve body assembly 1 comprises a valve sleeve 3 and a valve body 4 which is sleeved on the valve sleeve 3 and can be displaced left and right. A first flange 31 is provided at one end of the valve sleeve 3; a second flange 41 is connected to one end of the valve body 4; the cylinder assembly 2 is installed on the first flange 31; a valve core assembly 5 which can move in the valve sleeve 3 is provided in the valve sleeve 3, the valve core assembly 5 comprises a valve core 51 and a valve core column 52 connected to the valve core 51, a valve core magnet 53 is provided in the valve core column 52, two valve core magnets 53 are provided in total, and the two valve core magnets 53 are separated by a first spacer 531. The valve core magnets 53 are arranged with the same poles opposite to each other, that is, magnetic poles N and magnetic poles N are placed opposite to each other, and the first spacer forms a magnetic field transition area between the valve core magnets and the valve core magnets, and the magnetic field in this area is smaller than the magnetic field of the magnetic poles.
[0022] In this embodiment, the cylinder assembly 2 includes a cylinder sleeve 21, a connecting block 22 installed on the cylinder sleeve 21, and a piston rod 23, one end of the piston rod 23 passes through the connecting block 22 and is installed in the cylinder sleeve 21; the cylinder sleeve 21 is fixed on the first flange 31; a sealing sleeve 24 is provided at one end of the piston rod 23 located in the cylinder sleeve 21, a retaining ring 29 is provided on the piston rod in front of the sealing sleeve, the front end of the piston rod is slender, and the retaining ring is stuck at the slender position of the front end of the piston rod to prevent the sealing sleeve from falling off, the other end of the piston rod 23 extends out of the cylinder sleeve 21 and is connected to the second flange 41, and the piston rod drives the second flange; a piston spring 25 is provided between the sealing sleeve 24 and the connecting block 22; a sealing bracket 26 is provided between the sealing sleeve 24 and the inner wall of the cylinder sleeve 21, a sealing ring 8 is provided between the sealing bracket 26 and the sealing sleeve 24, and a cylinder port 211 is also provided on the cylinder sleeve 21, and the cylinder port 211 communicates with the cavity in the cylinder sleeve 21.
[0023] In this embodiment, a magnetic ring 6 is provided between the valve body 4 and the valve sleeve 3. The magnetic ring 6 is fixedly installed on one side of the second flange 41, specifically between the first flange and the second flange. The magnetic ring 6 is composed of four magnet columns 61, which are equidistantly arranged around the valve core assembly 5. The magnet columns 61 are respectively composed of a pressing sleeve 612 and two magnetic strips 611 installed in the pressing sleeve. A spacer 62 is provided between the magnetic strips 611 and the magnetic strips 611. The magnetic strips 611 are arranged with the same poles opposite to each other, that is, the magnetic poles N are placed opposite to the magnetic poles N, and the spacer allows the magnetic strips to be opposite to each other. A magnetic field transition region is formed between the magnetic strips, and the magnetic field in this region is smaller than the magnetic field of the magnetic poles. A threaded end cover 411 is provided on the second flange 41, and the pressing sleeve 612 is fixed on the end cover 411; the cylinder assembly 2 is installed between the magnet columns 61; a connecting cover 7 is installed on the first flange 31, a first opening 32 is provided at one end of the valve sleeve 3, and a second opening 71 is provided on the connecting cover 7. The connecting cover is installed on the first flange, and the first flange is installed on the valve sleeve, so the connecting cover 7 and the valve sleeve 3 are sealed and connected.
[0024] In this embodiment, an O-ring 9 is provided between the valve core 51 and the valve core column 52; an O-ring 9 is provided between the connecting cover 42 and the valve body 4, and a low-speed material port 511 is provided on the valve core 51. When the valve core 51 is located in the first opening 32, it is in a low-speed state. When the valve core 51 leaves the first opening 32, the first opening 32 is fully opened, and it is in a high-speed state.
[0025] Working principle: the valve sleeve is fixed by the first flange, the valve body is installed on the second flange, the cylinder is fixed on the first flange, the second flange is first driven by the cylinder, the valve body is installed on the second flange, a magnetic ring is provided between the valve body and the valve sleeve, the magnetic ring is installed on one side of the second flange, the magnetic ring is composed of four magnet columns, the magnetic ring can move with the cylinder, each magnet column is provided with two magnetic strips, the magnetic strips are installed so that the N poles correspond to each other, and the magnetic strips are fixed by a pressing sleeve.
[0026] The second flange and the valve body are sleeved on the valve sleeve. A valve core assembly is arranged in the valve sleeve. The valve core assembly consists of a valve core and a valve core column. A valve core magnet is arranged in the valve core column. There are two valve core magnets, and the valve core magnets are installed so that the N poles are arranged correspondingly. The valve core magnet is installed in the valve core column, and the magnetic ring corresponds to the valve core magnet.
[0027] The magnetic strip and valve core magnet are preferably bar magnets. According to the distribution of magnetic flux lines of the bar magnet, a strong magnetic field at both poles can be obtained, and the effect of enhancing the repulsive force can be achieved by shortening the distance between the same poles of the magnet.
[0028] like Figure 6 , Figure 7 When the valve core magnet and magnetic strip are installed, the magnetic poles N and S are parallel in the same direction and placed equidistantly to avoid mutual adsorption due to different magnetic poles, maximizing the use of the principle of like poles repelling each other.
[0029] In this embodiment, for the convenience of distinction, the N poles of two magnetic strips in the four magnet columns are respectively used as the N poles of the first zone and the N poles of the second zone; the N poles of the two valve core magnets are respectively used as the N poles of the third zone and the N poles of the fourth zone; wherein the N poles of the first zone are parallel to the N poles of the third zone, and their mutual repulsion is relatively stable under the constraints of the structure; the N poles of the second zone are parallel to the N poles of the fourth zone, and their mutual repulsion is relatively stable under the constraints of the structure. Structurally, the magnet column is stabilized by the pressing sleeve, and the valve core magnet is stabilized by the valve core column, thereby improving the stability, the magnetic field formed by the N poles of the first zone surrounds the N poles of the third zone, and the magnetic field formed by the N poles of the second zone surrounds the N poles of the fourth zone; the magnet column surrounds the valve core magnet for one circle, and its magnetic field is evenly distributed around the valve core magnet, the valve core magnet is wrapped with the valve core column on the periphery, and the valve core column adapts to the space inside the valve sleeve, so the valve core magnet can be stabilized in the magnetic field of the magnet column and will not deviate.
[0030] The N pole of the first zone is located forward relative to the N pole of the fourth zone, and the N pole of the second zone is located backward relative to the N pole of the third zone. When the speed control valve is in the high-speed state, the N pole of the first zone moves to the right when the cylinder controls the valve body to move, the distance between the N pole of the fourth zone and the N pole of the first zone decreases, and the repulsive force increases. The N pole of the fourth zone moves to the right under the repulsive force of the N pole of the first zone; the N pole of the second zone also moves to the right, and the distance between the N pole of the second zone and the N pole of the third zone increases. At this time, the repulsive force exerted by the N pole of the second zone on the N pole of the third zone decreases; on the contrary, when the speed control valve is in the low-speed state, the N pole of the first zone moves to the left when the cylinder controls the valve body to move to the left, the distance between the N pole of the fourth zone and the N pole of the first zone increases, and the repulsive force exerted by the N pole of the first zone on the N pole of the fourth zone decreases; the N pole of the second zone also moves to the left, the distance between the N pole of the second zone and the N pole of the third zone decreases, and the repulsive force exerted by the N pole of the first zone on the N pole of the fourth zone decreases; the N pole of the second zone also moves to the left, the distance between the N pole of the second zone and the N pole of the third zone decreases, and the N pole of the third zone moves to the left under the repulsive force of the N pole of the second zone.
[0031] The present invention utilizes the repulsion between like poles when the cylinder drives the magnetic ring to move, and the valve core assembly will also move in the same direction under the action of the magnetic poles. The movement trajectory of the valve core assembly can be stably controlled within a small range of the cylinder stroke, and the low-speed and high-speed states of the speed control valve are effectively controlled. No additional structure is required inside the valve sleeve to control the valve core assembly, achieving a dead-angle and sterile design, facilitating cleaning, and reducing parts loss. The external magnetic ring and flange structure are designed as an integrated structure to reduce space, and are smart and practical, making them convenient for use in various occasions.
[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A magnetic speed regulating valve, comprising a valve body assembly and a cylinder assembly, characterized in that: The valve body assembly includes a valve sleeve, a valve body which is sleeved on the valve sleeve and can be displaced left and right, a first flange is provided at one end of the valve sleeve; a second flange is connected to one end of the valve body; the cylinder assembly is installed on the first flange; a valve core assembly which can move in the valve sleeve is provided in the valve sleeve, the valve core assembly includes a valve core, a valve core column connected to the valve core, a valve core magnet is provided in the valve core column; a magnetic ring is provided between the valve body and the valve sleeve; a connecting cover is installed on the first flange.
2. A magnetic speed regulating valve according to claim 1, characterized in that: The cylinder assembly includes a cylinder sleeve, a connecting block installed on the cylinder sleeve and a piston rod, one end of the piston rod passes through the connecting block and is installed in the cylinder sleeve; the cylinder sleeve is fixed on the first flange; a sealing sleeve is provided at one end of the piston rod located in the cylinder sleeve, a retaining ring is provided on the piston rod in front of the sealing sleeve, the other end of the piston rod extends out of the cylinder sleeve and is connected to the second flange, a bushing is provided between the piston rod and the connecting block, and a joint is provided between the piston rod and the second flange.
3. A magnetic speed regulating valve according to claim 1, characterized in that: The magnetic ring is fixedly mounted on the second flange.
4. A magnetic speed regulating valve according to claim 1, characterized in that: The valve core is provided with a material port.
5. The magnetic speed regulating valve according to claim 1, characterized in that: There are two valve core magnets, which are separated by a first spacer, and the valve core magnets are arranged opposite to each other with the same poles.
6. A magnetic speed regulating valve according to claim 3, characterized in that: The magnetic ring is composed of four magnet columns and is equidistantly surrounded by the valve core assembly. The magnet columns are respectively composed of a pressing sleeve and two magnetic strips installed in the pressing sleeve. A spacer is provided between the magnetic strips, and the magnetic strips are arranged opposite to each other with the same poles. The second flange is provided with a threaded end cover, and the pressing sleeve is fixed on the end cover. The cylinder assembly is installed between the magnet columns.
7. A magnetic speed regulating valve according to claim 2, characterized in that: A piston spring is arranged between the sealing sleeve and the connecting block; a sealing bracket is arranged between the sealing sleeve and the inner wall of the cylinder sleeve, and a sealing ring is arranged between the sealing bracket and the sealing sleeve.
8. The magnetic speed regulating valve according to claim 1, characterized in that: A first opening is provided at one end of the valve sleeve, and a second opening is provided on the connecting cover. The connecting cover and the valve sleeve are sealed and connected.
9. The magnetic speed regulating valve according to claim 1, characterized in that: An O-type sealing ring is arranged between the valve core and the valve core column; and an O-type sealing ring is arranged between the connecting cover and the valve body.
10. The magnetic speed regulating valve according to claim 1, characterized in that: The magnetic strip and the valve core magnet are both bar magnets.