Gear transmission transmission valve and conveying pipeline
Through the design of the gear transmission valve, the problem of uneven force under the valve plate is solved, stable movement and efficient transmission of the valve plate are achieved, and the working reliability and life of the transmission valve are improved.
Patent Information
- Application Number
- CN202422504273.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-10-16
AI Technical Summary
When used in rectangular pipes, the valve plate is subjected to uneven force, easily deformed or stuck, and the consistency of movement of multiple valve stems cannot be guaranteed.
The gear transmission valve is adopted to drive the two driving racks to move simultaneously through the drive member, mesh the driven gear, and the connecting rod is hinged with the driven gear, so as to realize the synchronous movement of the two valve stems and uniformly drive the valve plate to slide.
The smoothness of valve plate movement and the stability of the transmission valve are achieved, avoiding stagnation, and improving transmission efficiency and life.
Smart Images
Figure CN223076282U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of valves, in particular to a gear-driven transmission valve and a conveying pipeline. Background Art
[0002] A transmission valve (also known as a control valve) is a valve used to control the flow of a medium, and it can adjust the pressure, flow rate, temperature or liquid level of the medium. The gate-type transmission valve is one of the most commonly used transmission valves. The movement of the main gate controls the medium in the pipeline. Since the direction of movement of the valve plate is perpendicular to the direction of medium flow, it is more labor-saving to open and close compared with other valves, and generally only a single valve rod is used to drive the movement of the valve plate.
[0003] There is a pipeline whose cross-section perpendicular to the direction of medium flow is generally rectangular. When a gate valve is adapted to the above pipeline, the length direction of the valve plate is perpendicular to the movement direction of the valve plate. If only a single valve rod is used to drive the movement of the valve plate, it will cause the force on the valve plate to be concentrated, and the valve plate is prone to deformation and other adverse effects after long-term use; if multiple valve rods are used to drive the movement of the valve plate synchronously, it is impossible to ensure the consistency of the movement of multiple valve rods, and the valve plate is prone to jamming during the movement process. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a gear-driven transmission valve and a conveying pipeline, so that the valve plate moves smoothly and the working stability of the transmission valve is improved.
[0005] To achieve this purpose, the utility model adopts the following technical solutions:
[0006] A gear-driven transmission valve, the gear-driven transmission valve includes a valve body and a valve plate. A valve hole is opened in the valve body along the direction of medium flow. The valve plate is slidably arranged inside the valve body. The valve plate slides along a direction perpendicular to the direction of medium flow and can block the valve hole. The gear-driven transmission valve further includes a driving assembly, and the driving assembly includes:
[0007] A driving housing, the driving housing is located on one side of the valve body;
[0008] A driving member, the driving member is arranged inside the driving housing. The driving member can move along a direction parallel to the sliding direction of the valve plate. Two driving racks are arranged on the driving member along the length direction of the valve plate. Fixed racks are arranged on the sides of both driving racks away from the driving member. The fixed racks are fixedly connected to the driving housing. A driven gear is meshed between a single driving rack and a single fixed rack. The axis of the driven gear is perpendicular to the sliding direction of the valve plate; and
[0009] The valve stem, two valve stems are arranged along the length direction of the valve plate, one end of the valve stem is connected to the valve plate, and a connecting rod is hinged between the other end of the valve stem and the driven gear; when the driving member moves, it can continuously drive the valve plate to slide away from or close to the valve body.
[0010] Preferably, a driving cylinder is arranged inside the driving housing, a sealing cavity is arranged inside the driving cylinder, a piston is arranged inside the sealing cavity and slides along a direction parallel to the sliding direction of the driving member, a driving shaft is connected to the piston, and the end of the driving shaft away from the piston extends out of the sealing cavity and is connected to the driving member.
[0011] Preferably, the piston divides the interior of the sealing cavity into a first chamber and a second chamber along its sliding direction, and the driving housing is provided with a first interface communicating with the first chamber and a second interface communicating with the second chamber.
[0012] Preferably, a connecting ring is arranged on the driving member, a connecting shaft is arranged at the other end of the driving shaft, the diameter of the connecting shaft is smaller than that of the driving shaft, the connecting shaft passes through the connecting ring and is threadedly connected with a locking nut.
[0013] Preferably, a first sealing ring is arranged on the outer periphery of the piston, and the outer ring of the first sealing ring abuts against the inner wall of the sealing cavity.
[0014] Preferably, a second sealing ring is arranged on the driving cylinder, the driving shaft passes through the inner ring of the second sealing ring and abuts against the inner ring of the second sealing ring.
[0015] Preferably, the connection point of the connecting rod and the driven gear does not coincide with the axis of the driven gear.
[0016] Preferably, a guiding hole communicating with the valve hole is opened on the driving housing corresponding to each valve stem, and the valve stem is slidably arranged inside the guiding hole.
[0017] Preferably, both ends of the connecting rod are respectively hinged to the valve stem and the driven gear through pin shafts, and buckles are arranged at both ends of the pin shafts.
[0018] A conveying pipeline, the conveying pipeline includes a pipeline body and a gear transmission valve, and the gear transmission valve is installed in the middle section of the pipeline body.
[0019] Advantages of the present utility model:
[0020] The gear transmission valve of the present utility model drives two driving racks to move synchronously through a driving member. Since the fixed rack is fixedly connected to the driving housing, and the driven gear meshes between the driving rack and the fixed rack, the driven gear moves in the same direction as the driving rack while rotating, that is, the driven gear can move along the direction parallel to the movement direction of the valve plate. Thus, the other ends of the two valve rods are driven by the two driven gears to move synchronously and continuously in the direction away from or close to the valve body, so as to drive the valve plate to slide through the valve rod, realizing the opening and closing of the gear transmission valve; The gear transmission valve of the present utility model arranges two valve rods along the length direction of the valve plate, and drives the two valve rods to move synchronously through a driving member by means of the transmission mode of gear and rack, so that the force on the valve plate is more uniform, it is not easy to get stuck, and the work is more stable; In addition, the transmission mode of gear and rack also has the advantages of accurate transmission ratio, stable transmission, high transmission efficiency, compact structure, long service life, reliable work, etc. Brief Description of the Drawings
[0021] Figure 1 is the front view of the gear transmission valve of the present utility model;
[0022] Figure 2 is Figure 1 the sectional view taken along the line A-A in
[0023] Figure 3 is the right view of the gear transmission valve of the present utility model;
[0024] Figure 4 is Figure 1 the sectional view taken along the line B-B in
[0025] In the figure:
[0026] 1, valve body; 11, valve hole; 12, chute; 2, valve plate; 3, driving housing; 31, opening; 32, first interface; 33, second interface; 34, fixed rack; 35, guiding hole; 4, driving member; 41, connecting ring; 42, driving rack; 43, driven gear; 5, valve rod; 51, connecting rod; 511, pin shaft; 512, buckle; 6, driving cylinder; 61, piston; 611, first sealing ring; 62, first chamber; 63, second chamber; 64, driving shaft; 641, connecting shaft; 642, locking nut; 65, second sealing ring. Detailed Description of the Preferred Embodiments
[0027] The following further describes the present utility model in detail with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.
[0028] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0029] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.
[0030] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0031] The following refers to Figures 1 to 4 to illustrate the gear transmission valve and the conveying pipeline provided by the present utility model.
[0032] The conveying pipeline includes a pipeline body and a gear transmission valve. The gear transmission valve is installed in the middle section of the pipeline body. In this embodiment, the pipeline body is horizontally arranged, and in the cross-section of the pipeline body perpendicular to the medium flow direction, the length direction of the cross-section is the horizontal direction, and the width direction of the cross-section is the vertical direction. The gear transmission valve is used to control the flow of the medium inside the pipeline body to adjust the pressure, flow rate, or liquid level inside the pipeline body. For the specific structure of the gear transmission valve, please refer to the following content of this embodiment.
[0033] The gear transmission transfer valve includes a valve body 1, a valve plate 2 and a driving component. A valve hole 11 is formed in the valve body 1 along the flow direction of the medium. The valve plate 2 is slidably arranged inside the valve body 1. The valve body 1 slides along a direction perpendicular to the flow direction of the medium. The valve plate 2 can block the valve hole 11. The driving component is used to drive the valve plate 2 to slide so as to realize the opening and closing of the gear transmission transfer valve.
[0034] Specifically, in this embodiment, the flow direction of the medium is the horizontal direction, that is, the valve hole 11 is formed horizontally. A sliding groove 12 is formed in the side wall at the top of the valve hole 11 along a direction perpendicular to the flow direction of the medium. The sliding groove 12 penetrates the valve body 1 upward. The valve plate 2 is slidably arranged inside the sliding groove 12, and a part of the valve plate 2 is always located inside the sliding groove 12. Thus, after the gear transmission transfer valve is opened, the valve plate 2 is accommodated by the sliding groove 12, and the valve plate 2 is guided and limited when the valve plate 2 slides. In other embodiments, the sliding groove 12 can also be formed in the side wall at the bottom of the valve hole 11.
[0035] Specifically, the driving component includes a driving housing 3, a driving member 4 and a valve rod 5. The driving housing 3 is connected to one side of the valve body 1. In this embodiment, the driving housing 3 is located at the top of the valve body 1, and the inside of the driving housing 3 is hollow. An opening 31 is formed in one side of the driving housing 3, and a cover plate (not shown in the figure) is detachably connected to the opening 31. The inside of the driving housing 3 can be conveniently overhauled by removing the cover plate.
[0036] Further, the driving member 4 is slidably arranged inside the driving housing 3, and the driving member 4 can move along a direction parallel to the movement direction of the valve plate 2, that is, the driving member 4 slides vertically. Exemplarily, a driving cylinder 6 is connected inside the driving housing 3 in this embodiment. The driving cylinder 6 is arranged vertically, and both ends of the driving cylinder 6 are closed, so that a sealed cavity is formed inside the driving cylinder 6. A piston 61 is slidably arranged inside the sealed cavity. The piston 61 slides vertically. The piston 61 divides the inside of the sealed cavity into a first chamber 62 and a second chamber 63 vertically. The first chamber 62 is located below the second chamber 63. A first interface 32 communicating with the first chamber 62 and a second interface 33 communicating with the second chamber 63 are arranged on the driving housing 3. A driving shaft 64 is connected to the piston 61. One end of the driving shaft 64 away from the piston 61 extends out of the sealed cavity and is connected to the driving member 4.
[0037] Based on the above, when the driving cylinder 6 works, both the first chamber 62 and the second chamber 63 are filled with a medium, which can be hydraulic oil or air, etc. When the medium is injected into the first chamber 62 through the first interface 32, the medium inside the second chamber 63 flows out through the second interface 33, which can push the piston 61 upward, thereby driving the driving member 4 upward. Conversely, it can push the piston 61 downward and drive the driving member 4 downward. Optionally, in some other embodiments, components such as an oil cylinder, an electric cylinder, or a servo motor can directly drive the driving member 4 to move.
[0038] Furthermore, in this embodiment, the driving member 4 is arranged in a sheet shape, and a connecting ring 41 is connected to the driving member 4. The other end of the driving shaft 64 is provided with a connecting shaft 641, and the diameter of the connecting shaft 641 is smaller than that of the driving shaft 64. The connecting shaft 641 passes through the connecting ring 41 and is threadedly connected with a locking nut 642, so that the driving shaft 64 is stably connected to the driving member 4. In other embodiments, the driving member 4 and the connecting shaft 641 can also be connected by means of flange connection or welding, etc., which will not be elaborated here.
[0039] It should be noted that, in order to improve the overall sealing performance of the driving cylinder 6, a first sealing ring 611 is arranged on the outer periphery of the piston 61, and the outer ring of the first sealing ring 611 abuts against the inner wall of the sealing cavity. In this embodiment, an annular installation groove is formed on the outer periphery of the piston 61, and the first sealing ring 611 is partially fixedly embedded in the installation groove; in some other embodiments, the inner ring of the first sealing ring 611 can be directly fixedly connected to the piston 61. In addition, a second sealing ring 65 is arranged on the driving cylinder 6, and the driving shaft 64 passes through the inner ring of the second sealing ring 65 and abuts against the inner ring of the second sealing ring 65. In this embodiment, an annular installation groove is also formed on the driving cylinder 6, and the second sealing ring 65 is partially fixedly embedded in the installation groove; in some other embodiments, the outer ring of the second sealing ring 65 can be directly fixedly connected to the driving cylinder 6. The sealing performance between the piston 61 and the inner wall of the sealing cavity is improved through the first sealing ring 611, so that the isolation between the first chamber 62 and the second chamber 63 is more thorough; the sealing performance between the driving cylinder 6 and the driving shaft 64 is improved through the second sealing ring 65, so that the medium inside the second chamber 63 is not easily leaked.
[0040] Furthermore, two driving racks 42 are arranged on the driving member 4 along the length direction of the valve plate 2, and the tooth surfaces of the two driving racks 42 face away from each other. Fixed racks 34 are arranged on the sides of the two driving racks 42 away from the driving member 4, that is, the two fixed racks 34 are respectively located on the sides of the two driving racks 42 facing away from each other, and the fixed racks 34 are fixedly connected to the driving housing 3. A driven gear 43 is meshed between each single driving rack 42 and each single fixed rack 34. The axis of the driven gear 43 is perpendicular to the sliding direction of the driving member 4, and the axes of the two driven gears 43 are parallel to each other.
[0041] There are two valve stems 5 evenly arranged along the length direction of the valve plate 2. One end of each valve stem 5 is connected to the valve plate 2, and a connecting rod 51 is hinged between the other end of each valve stem 5 and the driven gear 43. In this embodiment, the connection point of the connecting rod 51 and the driven gear 43 does not coincide with the axis of the driven gear 43, that is, the connection point of the connecting rod 51 and the driven gear 43 is close to the edge position of the driven gear 43. Both ends of the connecting rod 51 are respectively hinged to the valve stem 5 and the driven gear 43 through a pin shaft 511, and a buckle 512 is arranged at the end of the pin shaft 511.
[0042] Based on the above, when the gear transmission transfer valve is in the closed position, the valve plate 2 is at the lowest position. At this time, the connection point of the connecting rod 51 and the driven gear 43 is directly below the axis of the driven gear 43, that is, the connection point of the connecting rod 51 and the driven gear 43 is at the lowest position.
[0043] When the gear transmission transfer valve needs to be opened, the driving member 4 moves upward and drives the two driving racks 42 to move upward synchronously. Since the fixed rack 34 is fixedly connected to the driving housing 3, and the driven gear 43 is engaged between the driving rack 42 and the fixed rack 34, the two driven gears 43 rotate and move upward at the same time, so that the connection point of the connecting rod 51 and the driven gear 43 gradually moves upward. When the driven gear 43 rotates 180 degrees, the connection point of the connecting rod 51 and the driven gear 43 is directly above the axis of the driven gear 43. At this time, the connection point of the connecting rod 51 and the driven gear 43 is at the highest point, that is, the connecting rod 51, the valve stem 5 and the valve plate 2 all reach the highest position, and the gear transmission transfer valve is in the open state. When the gear transmission transfer valve needs to be closed, the driving member 4 moves downward.
[0044] It should be noted that since the connection point of the connecting rod 51 and the driven gear 43 is close to the edge position of the driven gear 43, the connecting rod 51 will move upward during the rotation and upward movement of the driven gear 43. When the stroke of the driving member 4 is limited, the stroke of the valve plate 2 can be maximally increased, which helps to reduce the consumption of materials and reduce the size of the entire gear transmission transfer valve. In some other embodiments, the connection point of the connecting rod 51 and the driven gear 43 may also coincide with the axis of the driven gear 43.
[0045] In addition, the two valve stems 5 are arranged along the length direction of the valve plate 2, and the two valve stems 5 are driven to move by one driving member 4, which can make the force on the valve plate 2 more uniform, not easy to get stuck, and the work is more stable. The driving member 4 drives the two valve stems 5 to move synchronously through the transmission mode of gear and rack, which has the advantages of accurate transmission ratio, stable transmission, high transmission efficiency, compact structure, long service life, and reliable work.
[0046] Furthermore, a guiding hole 35 is formed in the driving housing 3 corresponding to each valve rod 5. The guiding hole 35 communicates with the sliding groove 12. The valve rod 5 is slidably disposed inside the guiding hole 35, so as to guide and limit the valve rod 5 through the guiding hole 35. In this embodiment, the valve rod 5 is a corrugated pipe with a core shaft, and the corrugated pipe with a core shaft has good sealing performance, which can prevent the medium inside the valve hole 11 from entering the driving housing 3.
[0047] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.
Claims
1. Gear transmission transfer valve, the gear transmission transfer valve includes a valve body (1) and a valve plate (2), a valve hole (11) is provided on the valve body (1) along the medium flow direction, the valve plate (2) is slidably arranged inside the valve body (1), the valve plate (2) slides along a direction perpendicular to the medium flow direction and can block the valve hole (11), characterized in that, The gear transmission valve further includes a driving assembly, and the driving assembly includes: a driving housing (3), which is located on one side of the valve body (1); a driving member (4), which is arranged inside the driving housing (3). The driving member (4) can move along a direction parallel to the sliding direction of the valve plate (2). Two driving racks (42) are arranged on the driving member (4) along the length direction of the valve plate (2). Fixed racks (34) are arranged on the sides of the two driving racks (42) away from the driving member (4). The fixed racks (34) are fixedly connected to the driving housing (3). A driven gear (43) is meshed between a single driving rack (42) and a single fixed rack (34). The axis of the driven gear (43) is perpendicular to the sliding direction of the valve plate (2); and two valve stems (5), which are arranged along the length direction of the valve plate (2). One end of the valve stem (5) is connected to the valve plate (2), and a connecting rod (51) is hinged between the other end of the valve stem (5) and the driven gear (43). When the driving member (4) moves, it can continuously drive the valve plate (2) to slide away from or close to the valve body (1).
2. The gear transmission control valve according to claim 1, characterized in that, A driving cylinder (6) is arranged inside the driving housing (3). A sealing cavity is arranged inside the driving cylinder (6). A piston (61) is arranged inside the sealing cavity and slides along a direction parallel to the sliding direction of the driving member (4). A driving shaft (64) is connected to the piston (61). One end of the driving shaft (64) away from the piston (61) extends out of the sealing cavity and is connected to the driving member (4).
3. The gear transmission valve according to claim 2, wherein, The piston (61) divides the interior of the sealing cavity into a first chamber (62) and a second chamber (63) along its own sliding direction. A first interface (32) communicating with the first chamber (62) and a second interface (33) communicating with the second chamber (63) are arranged on the driving housing (3).
4. The gear transmission valve according to claim 2, wherein, A connecting ring (41) is arranged on the driving member (4). A connecting shaft (641) is arranged at the other end of the driving shaft (64). The diameter of the connecting shaft (641) is smaller than that of the driving shaft (64). The connecting shaft (641) penetrates through the connecting ring (41) and is threadedly connected with a locking nut (642).
5. The gear transmission control valve according to claim 2, characterized in that, A first sealing ring (611) is arranged on the outer periphery of the piston (61). The outer ring of the first sealing ring (611) abuts against the inner wall of the sealing cavity.
6. The gear transmission control valve according to claim 2, wherein, A second sealing ring (65) is arranged on the driving cylinder (6). The driving shaft (64) penetrates through the inner ring of the second sealing ring (65) and abuts against the inner ring of the second sealing ring (65).
7. The gear transmission valve according to any one of claims 1-6, characterized in that, The connection point of the connecting rod (51) and the driven gear (43) does not coincide with the axis of the driven gear (43).
8. The gear transmission valve according to any one of claims 1-6, characterized in that, A guiding hole (35) communicating with the valve hole (11) is formed in the driving housing (3) corresponding to each valve stem (5), and the valve stem (5) is slidably arranged inside the guiding hole (35).
9. The gear transmission valve according to any one of claims 1-6, characterized in that, Both ends of the connecting rod (51) are respectively hinged to the valve stem (5) and the driven gear (43) through a pin shaft (511).
10. A conveying pipeline, the conveying pipeline includes a pipeline body, characterized in that, The conveying pipeline further includes a gear transmission valve as described in any one of claims 1-9, and the gear transmission valve is installed in the middle section of the pipeline body.