A drip-proof valve for a lubricating oil filling line
By introducing worm gear transmission and sealing ring design into the anti-drip valve of the lubricating oil filling line, the problems of flow rate control and valve operation difficulties have been solved, achieving precise flow rate control and convenient use of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN TAIZHUO TECH CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-06-26
AI Technical Summary
The existing anti-drip valves in lubricating oil filling lines cannot freely control the fluid flow rate, and require considerable force to close, which may result in the valves not closing tightly.
The system employs an adjustment and installation mechanism, including a worm gear drive and a sealing ring design, to achieve precise flow rate control and convenient operation, while preventing dripping and backflow through a sealing plate and spring structure.
It enables free control of fluid flow rate and convenient operation, prevents dripping and backflow, and simplifies the disassembly and maintenance process of the device.
Smart Images

Figure CN224409719U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of anti-drip valve technology, and in particular relates to an anti-drip valve for a lubricating oil filling line. Background Technology
[0002] According to the published patent CN205678185U, a drip-proof valve includes a valve body, an inlet pipe, and an outlet pipe. A cover plate is hinged inside the inlet pipe, and a torsion spring is installed at the hinge point between the cover plate and the inlet pipe. A limit plate is installed on the front side of the inlet pipe, and the cover plate contacts the limit plate under the action of the torsion spring, blocking the inlet pipe. The inlet pipe is equipped with a pressure regulating device. This device has a simple structure and is easy to use. Through the cooperation of the pressure regulating device and the cover plate, it can effectively prevent dripping, prevent fluid backflow, and restrict the fluid flow direction. However, it still has the following shortcomings:
[0003] The above-mentioned equipment can prevent dripping and backflow of fluid and restrict the flow direction of fluid. However, it is not convenient to freely control the flow rate of fluid. When closing the valve, due to the pressure of the material, the user needs a lot of force to turn the valve. Furthermore, the valve may not close tightly due to insufficient strength of the user. Therefore, we propose an anti-drip valve for lubricating oil filling line. Utility Model Content
[0004] The purpose of this utility model is to provide a drip-proof valve for a lubricating oil filling line. Through the adjustment mechanism and the installation mechanism, it solves the problems of existing equipment, which can prevent dripping and backflow of fluid and restrict the flow direction of fluid, but is not convenient for free control of the flow rate of fluid. Furthermore, when closing the valve, due to the pressure of the material, the user needs a lot of force to turn the valve, and the valve may not close tightly due to insufficient strength of the user.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model is a drip-proof valve for a lubricating oil filling line, including a conveying pipe, a fixing block fixedly connected to the outer wall of the conveying pipe, and an adjustment mechanism provided on the outer wall of the fixing block;
[0007] The adjusting mechanism includes a baffle plate, a second baffle plate rotatably connected to the outer wall of the baffle plate, a connecting plate fixedly connected to the outer wall of the baffle plate, a second connecting plate fixedly connected to the outer wall of the connecting plate near the first connecting plate, a sliding plate slidably connected to the inner wall of the fixed block near the second connecting plate, a plurality of arc-shaped grooves formed on the inner wall of the sliding plate near the connecting plate, a threaded rod sleeve fixedly connected to the outer wall of the sliding plate away from the arc-shaped grooves, a threaded rod threadedly connected to the inner wall of the threaded rod sleeve, a worm gear fixedly connected to the outer wall of the threaded rod away from the threaded rod sleeve, a worm rotatably connected to the inner wall of the fixed block near the worm gear, and an installation mechanism provided on the outer wall of the conveying pipe.
[0008] Furthermore, the outer wall of the baffle plate is rotatably connected to the inner wall of the conveying pipe, the outer walls of the connecting plate and the second connecting plate are slidably connected to the inner wall of the arc groove, the outer wall of the worm wheel is rotatably connected to the inner wall of the fixed block, and the outer wall of the worm meshes with the outer wall of the worm wheel.
[0009] Furthermore, the installation mechanism includes a sealing ring, the outer wall of which is slidably connected to the top outer wall of the delivery pipe.
[0010] Furthermore, the outer wall of the sealing ring is slidably connected to a connecting pipe, and the outer wall of the conveying pipe near the sealing ring is fixedly connected to a slide rail.
[0011] Furthermore, a locking block is fixedly connected to the outer wall of the end of the connecting pipe near the slide rail, and several locking blocks are slidably connected to the inner wall of the slide rail, with the outer wall of the locking blocks slidably connected to the outer wall of the locking blocks.
[0012] Furthermore, a pull rod is fixedly connected to the inner wall of the second locking block, and a number of springs are fixedly connected to the outer wall of the end of the pull rod near the second locking block, with the outer walls of the springs all fixedly connected to the outer wall of the second locking block.
[0013] Furthermore, an annular limiting block is fixedly connected to the inner wall of the end of the conveying pipe away from the baffle plate, and a sealing plate is slidably connected to the outer wall of the annular limiting block.
[0014] Furthermore, a fixing plate is fixedly connected to the outer wall of the sealing plate near the water baffle, and a second spring is fixedly connected to the outer wall of the fixing plate near the sealing plate. The outer wall of the second spring is fixedly connected to the outer wall of the annular limiting block, and the outer wall of the fixing plate is slidably connected to the inner wall of the conveying pipe.
[0015] This utility model has the following beneficial effects:
[0016] 1. This utility model features an arc-shaped groove on the sliding plate. When the equipment needs to be used and materials need to be conveyed through the conveying pipe, rotating the worm gear causes the worm wheel to rotate within the fixed block. The rotation of the worm wheel causes the threaded rod to rotate, moving the threaded rod sleeve away from the worm wheel. When the threaded rod sleeve moves, it causes the sliding plate to slide simultaneously within the arc-shaped groove. When the connecting plate moves, it causes the baffle plate on the right side to flip downwards. This allows the user to freely adjust the valve size according to the actual situation, precisely control the flow rate of the material inside the valve, and facilitates user operation, requiring only a small force to operate the device. Furthermore, it prevents material leakage when material conveying stops.
[0017] 2. This utility model features a sealing plate on an annular limiting block. During equipment use, multiple pull rods are simultaneously pulled outwards to move the second locking block and compress the spring. When the second locking block is completely disengaged from the locking block, the entire conveying pipe can be removed downwards and taken off the locking block. The sealing ring seals the connection between the conveying pipe and the connecting pipe. When the material inside the conveying pipe is being conveyed, it will squeeze the sealing plate, causing the second spring to move and compress the fixing plate. This allows the conveying pipe to be removed for replacement or maintenance when it becomes clogged after prolonged use. The installation and disassembly of the device are simple and convenient, and it also prevents backflow and leakage of materials.
[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a cross-sectional view of the adjustment mechanism of this utility model;
[0022] Figure 3 This is a schematic diagram of the internal structure of this utility model;
[0023] Figure 4 This is a cross-sectional view of the overall structure of this utility model;
[0024] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle.
[0025] The attached diagram lists the components represented by each number as follows:
[0026] 1. Conveying pipe; 101. Fixing block; 2. Adjusting mechanism; 201. Water baffle; 202. Water baffle two; 203. Connecting plate; 204. Connecting plate two; 205. Slide plate; 206. Arc groove; 207. Threaded rod sleeve; 208. Threaded rod; 209. Worm gear; 210. Worm; 3. Installation mechanism; 301. Sealing ring; 302. Connecting pipe; 303. Slide rail; 304. Locking block; 305. Locking block two; 306. Pull rod; 307. Spring; 308. Annular limit block; 309. Sealing plate; 310. Spring two; 311. Fixing plate. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0028] Please see Figure 1-5 As shown, this utility model is a drip-proof valve for a lubricating oil filling line, including a conveying pipe 1. A fixing block 101 is fixedly connected to the outer wall of the conveying pipe 1. An adjustment mechanism 2 is provided on the outer wall of the fixing block 101. The movement trajectory of the slide plate 205 can be limited by the fixing block 101, so that it can only slide within the fixing block 101, making the movement of the slide plate 205 more stable.
[0029] The regulating mechanism 2 includes a baffle plate 201, a second baffle plate 202 rotatably connected to the outer wall of the baffle plate 201, a connecting plate 203 fixedly connected to the outer wall of the baffle plate 201, and a second connecting plate 204 fixedly connected to the outer wall of the connecting plate 203 near the connecting plate 203. Due to the sealing rings on the baffle plates 201 and 202 near the inner wall of the conveying pipe 1, material leakage can be prevented when the baffle plates 201 and 202 are closed. A sliding plate 205 is slidably connected to the inner wall of the fixing block 101 near the second connecting plate 204. Several arc-shaped grooves 206 are formed on the inner wall of the sliding plate 205 near the connecting plate 203. A threaded rod sleeve 207 is fixedly connected to the outer wall of the sliding plate 205 away from the arc-shaped grooves 206. The arc groove 206 can limit the movement trajectory of the connecting plate 203 and the second connecting plate 204. Since the limiting shafts of the connecting plate 203 and the second connecting plate 204 slide inside the arc groove 206, when the slide plate 205 moves, it can drive the connecting plate 203 and the second connecting plate 204 to move simultaneously through the arc groove 206. The inner wall of the threaded rod sleeve 207 is threadedly connected to the threaded rod 208. The outer wall of the threaded rod 208 away from the threaded rod sleeve 207 is fixedly connected to the worm gear 209. The inner wall of the fixing block 101 near the worm gear 209 is rotatably connected to the worm 210. The outer wall of the conveying pipe 1 is provided with the installation mechanism 3. Since the worm 210 and the worm gear 209 directly mesh with each other, when the user rotates the worm 210, it can drive the worm gear 209 to rotate, causing the threaded rod 208 to rotate.
[0030] The outer wall of the baffle plate 201 is rotatably connected to the inner wall of the conveying pipe 1. The outer walls of the connecting plate 203 and the connecting plate 204 are slidably connected to the inner wall of the arc groove 206. The outer wall of the worm gear 209 is rotatably connected to the inner wall of the fixing block 101. The outer wall of the worm 210 meshes with the outer wall of the worm gear 209. The mounting mechanism 3 includes a sealing ring 301, which can seal the connection between the conveying pipe 1 and the sealing ring 301 to prevent leakage when the conveying pipe 1 is conveying materials. The outer wall is slidably connected to the top outer wall of the conveying pipe 1. The outer wall of the sealing ring 301 is slidably connected to the connecting pipe 302. The outer wall of the conveying pipe 1 near the sealing ring 301 is fixedly connected to the slide rail 303. The outer wall of the connecting pipe 302 near the slide rail 303 is fixedly connected to the locking block 304. The inner wall of the slide rail 303 is slidably connected to several locking blocks 305. The slide rail 303 can limit the position of the locking blocks 305 so that they can only slide within the slide rail 303, and at the same time, it can prevent the locking blocks 305 from falling off.
[0031] The outer wall of the second locking block 305 is slidably connected to the outer wall of the locking block 304. A pull rod 306 is fixedly connected to the inner wall of the second locking block 305. Several springs 307 are fixedly connected to the outer wall of the pull rod 306 near the second locking block 305. The outer walls of the springs 307 are all fixedly connected to the outer wall of the second locking block 305. The springs 307 will always press the second locking block 305 with their own elastic force, so that it is locked on the locking block 304, and can enter a position that can fix the locking block 304. An annular limiting block 308 is fixedly connected to the inner wall of the end of the conveying pipe 1 away from the baffle plate 201. A sealing plate 309 is slidably connected to the outer wall of the annular limiting block 308. The sealing plate 309 is close to the baffle plate. A fixing plate 311 is fixedly connected to one end of the outer wall of 201. When the sealing plate 309 is pressed against the annular limiting block 308, the conveying pipe 1 can be sealed to prevent the material in the conveying pipe 1 from flowing back or dripping. A spring 310 is fixedly connected to the outer wall of the fixing plate 311 near the sealing plate 309. The outer wall of the spring 310 is fixedly connected to the outer wall of the annular limiting block 308. The outer wall of the fixing plate 311 is slidably connected to the inner wall of the conveying pipe 1. The spring 310 can squeeze the fixing plate 311 through its own elastic force, so that it can pull the sealing plate 309 tightly against the outer wall of the annular limiting block 308.
[0032] One specific application of this embodiment is:
[0033] When the equipment is needed, and materials need to be conveyed through the conveying pipe 1, the worm 210 is rotated. The rotation of the worm 210 drives the worm wheel 209 to rotate within the fixed block 101. The rotation of the worm wheel 209 drives the threaded rod 208 to rotate, causing the threaded rod sleeve 207 to move away from the worm wheel 209. When the threaded rod sleeve 207 moves, it drives the sliding plate 205, causing the connecting plate 203 and the second connecting plate 204 to slide simultaneously within the arc-shaped groove 206. When the connecting plate 203 moves, it drives the right side... When the baffle plate 201 flips downwards, the connecting plate 204 moves, causing the baffle plate 202 on the left side to flip downwards in the opposite direction. At this time, the material can pass normally through the baffle plate 201 and the connecting plate 203 and fall down. Both the baffle plate 201 and the baffle plate 202 have sealing rings at their ends near the inner wall of the conveying pipe 1, which can prevent material from dripping when the baffle plate 201 and the baffle plate 202 are closed. Because there is a speed difference in the transmission between the worm gear 210 and the worm wheel 209, when the user operates... With minimal force, baffle 201 and baffle 202 can be opened for user convenience. Over time, the conveying pipe 1 may become clogged. In this case, the entire conveying pipe 1 can be removed for replacement or maintenance. During disassembly, first pull multiple levers 306 outwards simultaneously to move the second locking block 305 and compress the spring 307. When the second locking block 305 is completely disengaged from the locking block 304, the entire conveying pipe 1 can be removed downwards and taken off from the locking block 304. The sealing ring 301 can seal the joint between the conveying pipe 1 and the connecting pipe 302. When the material in the conveying pipe 1 is conveyed, it will squeeze the sealing plate 309, causing the second spring 310 to move and compress the fixing plate 311. At this time, the material can be discharged from the gap between the sealing plate 309 and the annular limiting block 308. When the material in the conveying pipe 1 flows backward, the fixing plate 311 will squeeze the second spring 310, causing it to pull the sealing plate 309 to stick tightly to the annular limiting block 308, preventing the material from continuing to flow.
[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A drip-proof valve for a lubricating oil filling line, comprising a delivery pipe (1), characterized in that: A fixing block (101) is fixedly connected to the outer wall of the conveying pipe (1), and an adjustment mechanism (2) is provided on the outer wall of the fixing block (101). The adjusting mechanism (2) includes a baffle plate (201), a second baffle plate (202) is rotatably connected to the outer wall of the baffle plate (201), a connecting plate (203) is fixedly connected to the outer wall of the baffle plate (201), a second connecting plate (204) is fixedly connected to the outer wall of the connecting plate (203) near the connecting plate (203), a sliding plate (205) is slidably connected to the inner wall of the fixed block (101) near the second connecting plate (204), and the inner wall of the sliding plate (205) near the connecting plate (203) is open. The slide plate (205) is provided with several arc-shaped grooves (206). A threaded rod sleeve (207) is fixedly connected to the outer wall of the end of the slide plate (205) away from the arc-shaped groove (206). A threaded rod (208) is threadedly connected to the inner wall of the threaded rod sleeve (207). A worm gear (209) is fixedly connected to the outer wall of the end of the threaded rod (208) away from the threaded rod sleeve (207). A worm (210) is rotatably connected to the inner wall of the fixed block (101) near the worm gear (209). An installation mechanism (3) is provided on the outer wall of the conveying pipe (1).
2. The anti-drip valve for a lubricating oil filling line according to claim 1, characterized in that, The outer wall of the baffle plate (201) is rotatably connected to the inner wall of the conveying pipe (1), the outer walls of the connecting plate (203) and the second connecting plate (204) are slidably connected to the inner wall of the arc groove (206), the outer wall of the worm wheel (209) is rotatably connected to the inner wall of the fixed block (101), and the outer wall of the worm (210) meshes with the outer wall of the worm wheel (209).
3. The anti-drip valve for a lubricating oil filling line according to claim 2, characterized in that, The installation mechanism (3) includes a sealing ring (301), the outer wall of which is slidably connected to the top outer wall of the delivery pipe (1).
4. The anti-drip valve for a lubricating oil filling line according to claim 3, characterized in that, The outer wall of the sealing ring (301) is slidably connected to the connecting pipe (302), and the outer wall of the conveying pipe (1) near the sealing ring (301) is fixedly connected to the slide rail (303).
5. The anti-drip valve for a lubricating oil filling line according to claim 4, characterized in that, A locking block (304) is fixedly connected to the outer wall of the end of the connecting pipe (302) near the slide rail (303). Several locking blocks (305) are slidably connected to the inner wall of the slide rail (303). The outer wall of the locking blocks (305) is slidably connected to the outer wall of the locking block (304).
6. The anti-drip valve for a lubricating oil filling line according to claim 5, characterized in that, A pull rod (306) is fixedly connected to the inner wall of the second locking block (305). Several springs (307) are fixedly connected to the outer wall of the pull rod (306) near the second locking block (305). The outer walls of the several springs (307) are all fixedly connected to the outer wall of the second locking block (305).
7. A drip-proof valve for a lubricating oil filling line according to claim 6, characterized in that, An annular limiting block (308) is fixedly connected to the inner wall of the end of the conveying pipe (1) away from the baffle plate (201), and a sealing plate (309) is slidably connected to the outer wall of the annular limiting block (308).
8. The anti-drip valve for a lubricating oil filling line according to claim 7, characterized in that, A fixing plate (311) is fixedly connected to the outer wall of the sealing plate (309) near the water baffle (201). A spring (310) is fixedly connected to the outer wall of the fixing plate (311) near the sealing plate (309). The outer wall of the spring (310) is fixedly connected to the outer wall of the annular limiting block (308). The outer wall of the fixing plate (311) is slidably connected to the inner wall of the conveying pipe (1).