A throttle valve for easily adjusting flow rate

Abstract

The utility model discloses a throttling valve convenient to adjust flow, including valve body, the valve body lateral wall and bottom all integrative conveying pipe, the valve body is slidably connected with the sealing washer, the sealing washer is fixedly connected with the valve core through two groups of connecting rods, the valve body top rotary connection has the threaded rod, the threaded rod is connected with the sealing washer through the connecting mechanism, the valve body upper end is installed with lubricating mechanism. The utility model through servo motor drive incomplete gear and gear meshing, realize threaded rod adjustment and lubricating mechanism's linkage, when the valve core removes, reciprocating screw rod drives piston action, makes lubricant to enter the spray ring through the connecting pipe and even sprays in the threaded rod outer wall, need not manual regular filling, avoided the influence of traditional manual lubrication by dust, damp etc. Environmental factor, ensure that the threaded rod and the screw engagement surface of sliding block always get timely lubrication, effectively reduce the clearance produced because of friction wear, reduce the risk of jam.

Description

Technical Field

[0001] This utility model relates to the field of throttle valve technology, specifically a throttle valve that facilitates flow rate adjustment. Background Technology

[0002] Throttling valves, as key components in fluid control systems, are widely used in petroleum, chemical, water conservancy, and machinery manufacturing industries. Their core function is to precisely regulate fluid flow by changing the fit clearance between the valve core and the flow channel, so as to meet the flow control requirements under different operating conditions.

[0003] In existing technologies, the core transmission components of throttle valves (such as the threaded rod and nut) are prone to developing gaps due to friction and wear on the threaded meshing surfaces after prolonged use. Especially in the absence of timely lubrication, this can lead to jamming, causing the valve core to adjust sluggishly or malfunction. Existing lubrication methods mostly rely on manual, periodic application of lubricant, which is cumbersome and easily affected by environmental factors (such as dust and humidity), making it difficult to guarantee lubrication effectiveness. In severe cases, this can shorten the service life of the equipment. Therefore, this utility model proposes a throttle valve that facilitates flow adjustment, solving the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the problems of cumbersome manual lubrication and susceptibility to environmental factors leading to wear and jamming of threaded rods in existing technologies, a servo motor is used to drive an incomplete gear linkage lubrication mechanism, enabling the spray ring to automatically lubricate the threaded rod. Combined with stable valve core adjustment, flow control and lubrication are synchronized, avoiding jamming and adjustment lag.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a throttle valve for easy flow regulation, comprising a valve body, wherein a conveying pipe is integrally formed on the side wall and bottom of the valve body, and a flange is provided at the end of the conveying pipe; a flow groove is opened at the bottom of the valve body, and a valve core is slidably connected in the flow groove; the outer and inner walls of the valve core are conical and in close contact with the inner wall of the flow groove; a sealing gasket is slidably connected in the valve body, and the sealing gasket is fixedly connected to the valve core through two sets of connecting rods; a threaded rod is rotatably connected to the top of the valve body, and the threaded rod is connected to the sealing gasket through a connecting mechanism; and a lubrication mechanism is installed at the upper end of the valve body.

[0008] The connecting mechanism is used to drive the valve core to move up and down, thereby regulating the flow rate;

[0009] The lubrication mechanism is used to lubricate the outer wall of the threaded rod to ensure the accuracy of adjusting the valve core height.

[0010] Preferably, the connecting mechanism includes a slider rotatably connected to the threaded section of the threaded rod, two sets of reciprocating screws are fixedly connected to the lower end of the slider, the ends of the two sets of reciprocating screws are fixedly connected to the end face of the valve core, two sets of limiting rods are fixedly connected to the top of the valve body, the slider is slidably connected to the outer wall of the two sets of limiting rods, and a limiting block is fixedly connected to the end of the threaded rod.

[0011] Preferably, the lubrication mechanism includes a side plate fixedly connected to the upper end of the valve body, a device box fixedly connected to the end face, two sets of connecting pipes installed on the end face of the device box, a spray ring fixedly connected to the top of the valve body, and the spray ring sleeved on the outer wall of the threaded rod, one set of the connecting pipes communicating with the spray ring, a reciprocating screw rotatably connected to the bottom of the device box, a screw sleeve threadedly connected to the threaded section of the reciprocating screw, and a piston connected to the screw sleeve through a moving rod.

[0012] Preferably, a second limiting rod is fixedly connected to the bottom of the device box, the lead screw sleeve is slidably connected to the outer wall of the second limiting rod, the end of the reciprocating lead screw is fixedly connected to a second limiting block, and a one-way valve is installed in both sets of connecting pipes.

[0013] Preferably, the valve body end face is rotatably connected to an incomplete gear and a gear, the incomplete gear and the gear mesh with each other, the incomplete gear is coaxially and fixedly connected to a threaded rod, and the gear is coaxially and fixedly connected to a reciprocating lead screw.

[0014] Preferably, a servo motor is fixedly connected to the upper end of the side plate, and the output shaft of the servo motor is coaxially and fixedly connected to the incomplete gear.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a throttle valve that facilitates flow adjustment, and has the following beneficial effects:

[0017] 1. This utility model uses a servo motor to drive an incomplete gear to mesh with another gear, thereby realizing the linkage between the threaded rod adjustment and lubrication mechanism. When the valve core moves, the reciprocating screw drives the piston to move, so that the lubricant enters the spray ring through the connecting pipe and is evenly sprayed on the outer wall of the threaded rod. There is no need for manual periodic addition, avoiding the influence of environmental factors such as dust and moisture on traditional manual lubrication. It ensures that the threaded meshing surface of the threaded rod and the slider is always lubricated in a timely manner, effectively reducing the gap caused by friction and wear and reducing the risk of jamming.

[0018] 2. This utility model achieves a tight fit between the conical structure of the valve core and the flow groove, enhanced sealing performance with the sealing gasket, and smooth sliding of the slider along the limit rod under the continuous lubrication of the threaded rod. This reduces the shaking or offset of the valve core during adjustment, improves the stability and accuracy of flow regulation, and extends the service life of the core transmission components of the throttle valve by protecting the threaded rod with the lubrication mechanism. It also solves the problem of adjustment lag or failure caused by untimely lubrication in traditional throttle valves. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a throttle valve that facilitates flow adjustment according to this utility model;

[0020] Figure 2 for Figure 1 Schematic diagram of cross-section structure;

[0021] Figure 3 for Figure 2 Schematic diagram of the structure of the threaded rod, servo motor and device box;

[0022] Figure 4 for Figure 3 Cross-sectional structural diagram of the central assembly box;

[0023] In the diagram: 1. Valve body; 2. Delivery pipe; 3. Side plate; 4. Flow groove; 5. Valve core; 6. Sealing gasket; 7. Connecting rod; 8. Threaded rod; 9. Spray ring; 10. Limiting block one; 11. Slider; 12. Incomplete gear; 13. Gear; 14. Limiting rod one; 15. Device box; 16. Connecting pipe; 17. Reciprocating screw; 18. Limiting rod two; 19. Limiting block two; 20. Piston; 21. Moving rod; 22. Screw sleeve; 23. Servo motor. Detailed Implementation

[0024] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0025] This utility model provides a technical solution for a throttle valve that facilitates flow rate adjustment:

[0026] Please see Figure 1-4A throttle valve for easy flow regulation includes a valve body 1. The valve body 1 has a conveying pipe 2 integrally formed on its side wall and bottom. The conveying pipe 2 is provided with a flange at its end. A flow groove 4 is opened in the bottom of the valve body 1. A valve core 5 is slidably connected in the flow groove 4. The outer and inner walls of the valve core 5 are conical and in close contact with the inner wall of the flow groove 4. A sealing gasket 6 is slidably connected in the valve body 1. The sealing gasket 6 is fixedly connected to the valve core 5 through two sets of connecting rods 7. A threaded rod 8 is rotatably connected in the top of the valve body 1. The threaded rod 8 is connected to the sealing gasket 6 through a connecting mechanism. A lubrication mechanism is installed at the upper end of the valve body 1.

[0027] The connecting mechanism is used to drive the valve core 5 to move up and down, thereby regulating the flow rate;

[0028] The lubrication mechanism is used to lubricate the outer wall of the threaded rod 8 to ensure the accuracy of the height of the regulating valve core 5;

[0029] Furthermore, the conical structure of the valve core 5 fits tightly against the inner wall of the flow groove 4, and together with the sealing gasket 6, it can enhance the sealing performance inside the valve body 1 and reduce fluid leakage; the lubrication mechanism can lubricate the threaded rod 8 in a timely manner, preventing it from developing gaps due to friction and wear, and reducing the risk of jamming.

[0030] The connecting mechanism includes a slider 11 rotatably connected to the threaded section of the threaded rod 8. Two sets of reciprocating screws 17 are fixedly connected to the lower end of the slider 11. The ends of the two sets of reciprocating screws 17 are fixedly connected to the end face of the valve core 5. Two sets of limiting rods 14 are fixedly connected to the top of the valve body 1. The slider 11 is slidably connected to the outer wall of the two sets of limiting rods 14. A limiting block 10 is fixedly connected to the end of the threaded rod 8.

[0031] Furthermore, the slider 11 slides along the limiting rod 14, which can prevent the valve core 5 from shaking or shifting during the adjustment process and reduce the wear of the connection between the reciprocating screw 17 and the valve core 5; the limiting block 10 can limit the movement range of the slider 11 and prevent it from disengaging from the threaded rod 8.

[0032] The lubrication mechanism includes a side plate 3 fixedly connected to the upper end of the valve body 1, a device box 15 fixedly connected to the end face, two sets of connecting pipes 16 installed on the end face of the device box 15, a spray ring 9 fixedly connected to the top inside the valve body 1, and the spray ring 9 is sleeved on the outer wall of the threaded rod 8. One set of connecting pipes 16 communicates with the spray ring 9. A reciprocating screw 17 is rotatably connected to the bottom inside the device box 15. A screw sleeve 22 is threadedly connected to the threaded section of the reciprocating screw 17. The screw sleeve 22 is connected to the piston 20 through the moving rod 21.

[0033] Furthermore, the spray ring 9 is fitted onto the outer wall of the threaded rod 8, which can evenly spray lubricant onto the threaded meshing surface of the threaded rod 8 when the lubrication mechanism is working, eliminating the need for regular manual lubrication and avoiding the impact of environmental factors such as dust and humidity on traditional manual lubrication. The piston 20 moves with the lead screw sleeve 22 via the moving rod 21, which can continuously provide lubricant to the spray ring 9, ensuring timely lubrication of the threaded rod 8 and reducing jamming. It should be noted that the lubricant sprayed onto the outer wall of the threaded rod 8 can drip onto the outer wall of the threaded rod 8 under its own weight. In specific lubrication applications, another connecting pipe 16 can be connected to an external container containing lubricating fluid.

[0034] A second limit rod 18 is fixedly connected to the bottom of the device box 15. The screw sleeve 22 is slidably connected to the outer wall of the second limit rod 18. A second limit block 19 is fixedly connected to the end of the reciprocating screw 17. A one-way valve is installed in both sets of connecting pipes 16.

[0035] Furthermore, the limit rod 18 can restrict the movement trajectory of the lead screw sleeve 22, prevent it from deflecting on the reciprocating lead screw 17, and ensure that the piston 20 stably pushes the lubricant; the one-way valve can prevent the lubricant in the device box 15 from flowing back.

[0036] The valve body 1 has an incomplete gear 12 and a gear 13 rotatably connected to its end face. The incomplete gear 12 and the gear 13 mesh with each other. The incomplete gear 12 is coaxially and fixedly connected to the threaded rod 8, and the gear 13 is coaxially and fixedly connected to the reciprocating screw 17.

[0037] Furthermore, the incomplete engagement of gear 12 and gear 13 allows the reciprocating screw 17 to be driven to operate the lubrication mechanism simultaneously while the threaded rod 8 rotates to adjust the valve core 5, thus achieving linkage between the adjustment of the valve core 5 and the lubrication of the threaded rod 8.

[0038] A servo motor 23 is fixedly connected to the upper end of the side plate 3, and the output shaft of the servo motor 23 is fixedly connected to the incomplete gear 12 on the same axis.

[0039] In practical use, the working principle of this utility model is as follows:

[0040] When the operator needs to adjust the flow rate of the throttle valve, the servo motor 23 on the side plate 3 is started. The output shaft of the servo motor 23 drives the incomplete gear 12 to rotate. Since the incomplete gear 12 meshes with the gear 13, the gear 13 rotates along with it, which in turn drives the threaded rod 8, which is coaxial with it, to start rotating. When the threaded rod 8 rotates, the slider 11 on its threaded section slides smoothly along the limit rod 14, and pushes the valve core 5 up and down in the flow groove 4 through the two sets of reciprocating screws 17. When the valve core 5 moves downward, the flow area between it and the flow groove 4 is reduced, and the flow rate decreases accordingly.

[0041] While adjusting the flow rate, the incomplete gear 12 drives the reciprocating screw 17 in the device box 15 to rotate synchronously via the gear 13. When the reciprocating screw 17 rotates, the screw sleeve 22 moves reciprocally along the limit rod 18, driving the piston 20 to move back and forth in the device box 15 via the moving rod 21. When the piston 20 moves towards the spray ring 9, the lubricant in the device box 15 is squeezed and enters the spray ring 9 through the connecting pipe 16, and is evenly sprayed on the threaded meshing surface of the threaded rod 8 to form continuous lubrication. When the piston 20 moves in the opposite direction, the container containing lubricating fluid replenishes the lubricant in the device box 15 through another set of connecting pipes 16. The one-way valves in the two sets of connecting pipes 16 prevent the lubricant from flowing back, ensuring the continuity of the lubrication process.

[0042] When it is necessary to stop adjusting or maintain a certain flow rate, the servo motor 23 is turned off, and all components immediately stop operating. The valve core 5 stabilizes in its current position, and the spray ring 9 also stops spraying lubricant. This linkage design between flow regulation and thread lubrication avoids the problem of wear or jamming of the threaded rod 8 caused by untimely manual lubrication in traditional throttle valves.

[0043] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A throttle valve for easy flow regulation, comprising a valve body (1), characterized in that: The valve body (1) has a conveying pipe (2) integrally formed on its side wall and bottom. The conveying pipe (2) is provided with a flange at its end. The valve body (1) has a flow groove (4) at its bottom. A valve core (5) is slidably connected in the flow groove (4). The outer and inner walls of the valve core (5) are conical and are in close contact with the inner wall of the flow groove (4). A sealing gasket (6) is slidably connected in the valve body (1). The sealing gasket (6) is fixedly connected to the valve core (5) through two sets of connecting rods (7). A threaded rod (8) is rotatably connected to the top of the valve body (1). The threaded rod (8) is connected to the sealing gasket (6) through a connecting mechanism. A lubrication mechanism is installed at the upper end of the valve body (1). The connecting mechanism is used to drive the valve core (5) to move up and down to adjust the flow rate; The lubrication mechanism is used to lubricate the outer wall of the threaded rod (8) to ensure the accuracy of the height of the regulating valve core (5).

2. A throttle valve for easy flow adjustment according to claim 1, characterized in that: The connecting mechanism includes a slider (11) rotatably connected to the threaded section of the threaded rod (8). Two sets of reciprocating screws (17) are fixedly connected to the lower end of the slider (11). The ends of the two sets of reciprocating screws (17) are fixedly connected to the end face of the valve core (5). Two sets of limiting rods (14) are fixedly connected to the top of the valve body (1). The slider (11) is slidably connected to the outer wall of the two sets of limiting rods (14). A limiting block (10) is fixedly connected to the end of the threaded rod (8).

3. A throttling valve for easy flow adjustment according to claim 2, characterized in that: The lubrication mechanism includes a side plate (3) fixedly connected to the upper end of the valve body (1), a device box (15) fixedly connected to the end face, two sets of connecting pipes (16) installed on the end face of the device box (15), a spray ring (9) fixedly connected to the top inside the valve body (1), and the spray ring (9) is sleeved on the outer wall of the threaded rod (8), one set of the connecting pipes (16) is connected to the spray ring (9), a reciprocating screw (17) is rotatably connected to the bottom inside the device box (15), a screw sleeve (22) is threadedly connected to the threaded section of the reciprocating screw (17), and the screw sleeve (22) is connected to a piston (20) through a moving rod (21).

4. A throttling valve for easy flow adjustment according to claim 3, characterized in that: The bottom of the device box (15) is fixedly connected to a limiting rod two (18), the screw sleeve (22) is slidably connected to the outer wall of the limiting rod two (18), the end of the reciprocating screw (17) is fixedly connected to a limiting block two (19), and one-way valves are installed in both sets of the connecting pipes (16).

5. A throttling valve for easy flow adjustment according to claim 4, characterized in that: The valve body (1) is rotatably connected to an incomplete gear (12) and a gear (13). The incomplete gear (12) and the gear (13) mesh with each other. The incomplete gear (12) is coaxially fixedly connected to the threaded rod (8), and the gear (13) is coaxially fixedly connected to the reciprocating screw (17).

6. A throttle valve for easy flow adjustment according to claim 5, characterized in that: A servo motor (23) is fixedly connected to the upper end of the side plate (3), and the output shaft of the servo motor (23) is coaxially fixedly connected to the incomplete gear (12).

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