An automatic oiling mechanism for the inner wall of a valve cavity

By designing an automatic oiling mechanism with compatible oil rods and boosters, the problem of uneven manual oiling was solved, achieving automatic and uniform oiling of the valve cavity inner wall, thus improving oiling efficiency and uniformity.

CN224271889UActive Publication Date: 2026-05-26SANHUA CO LTD (JIANGXI) AUTOMATIC CONTROL COMPONENTS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SANHUA CO LTD (JIANGXI) AUTOMATIC CONTROL COMPONENTS
Filing Date
2025-06-16
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In the existing technology, the coating of oil on the inner wall of the valve cavity mainly relies on manual operation, which leads to uneven coating.

Method used

An automatic oiling mechanism for the inner wall of a valve cavity was designed, including a memory, an oil rod, and an booster. The shape of the oil rod is adapted to the shape of the valve cavity. The booster pushes the pusher to press down, causing the oil to overflow from the evenly distributed oil outlet holes, thus achieving automatic and uniform oiling.

Benefits of technology

It achieves automatic and uniform oiling of the valve cavity inner wall, reduces the influence of human factors, and improves the uniformity and efficiency of oiling.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This utility model discloses an automatic oiling mechanism for the inner wall of a valve cavity, comprising: a memory, wherein the memory has a cavity for storing oil, and a pusher element with its outer ring tightly attached to the inner wall of the cavity is disposed within the cavity; the memory also has an oil nozzle; an oil rod disposed at the bottom of the memory, having an internal cavity communicating with the cavity, and having several oil outlet holes evenly arranged around its outer wall, communicating with the cavity, for embedding into the valve cavity to oil the inner wall of the valve cavity; the shape of the oil rod is adapted to the shape of the valve cavity; and an assist device. When the oil rod is inserted into the valve cavity, the assist device presses down on the pusher element to cause oil to overflow from the oil outlet holes, thereby achieving automatic oiling of the inner wall of the valve cavity; because the shape of the oil rod is adapted to the shape of the valve cavity, and the oil outlets are evenly arranged around the outer wall of the oil rod, the oil can be evenly coated on the inner wall of the valve cavity during dispensing, unaffected by human factors.
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Description

Technical Field

[0001] This utility model relates to the field of oiling technology, and more specifically, to an automatic oiling mechanism for the inner wall of a valve cavity. Background Technology

[0002] A gate valve is a commonly used type of valve, primarily used to control the flow of media in pipelines. It achieves fluid opening or closing through the contact or separation between a movable valve disc and a valve seat, offering good regulating performance and sealing.

[0003] Before processing and assembly, the inner wall of the valve cavity of the gate valve needs to be coated with oil. Currently, most oiling is done manually. However, manual oiling is affected by many factors such as technique and condition, resulting in uneven oiling. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide an automatic oiling mechanism for the inner wall of the valve cavity that can automatically apply oil and apply oil evenly.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] An automatic oiling mechanism for the inner wall of a valve cavity, comprising:

[0007] The memory has an internal cavity for storing oil, and a pusher with an outer ring tightly attached to the inner wall of the cavity is provided inside the cavity. The memory is also provided with an oil filling nozzle.

[0008] An oil rod, disposed at the bottom of the storage device, has an internal cavity communicating with the receptacle. Its outer wall is evenly surrounded by several oil outlet holes communicating with the cavity, used to be embedded in the valve cavity to apply oil to the inner wall of the valve cavity. The shape of the oil rod is adapted to the shape of the valve cavity.

[0009] The booster is used to push the pusher down to make oil overflow from the oil outlet to coat the inner wall of the valve chamber.

[0010] Compared with the prior art, the present invention has at least the following beneficial effects:

[0011] When the oil rod is inserted into the valve cavity, the oil can be overflowed from the oil outlet by pressing down the push plug with the booster, thereby automatically coating the inner wall of the valve cavity with oil. Since the shape of the oil rod is adapted to the shape of the valve cavity, and the oil outlet is evenly arranged around the outer wall of the oil rod, the oil can be evenly coated on the inner wall of the valve cavity when it is dispensed, without being affected by human factors.

[0012] Preferably, the pusher is provided with a guide rod that vertically guides and engages with the shaft hole at the top of the memory.

[0013] Preferably, the booster is an air pump, which is connected to the oil nozzle to inflate the cavity with air to push the push plug down.

[0014] Preferably, the oiling mechanism further includes a first support member and a first lifting component disposed on the first support member, wherein the output end of the first lifting component is connected to the memory to drive the oil rod to move up and down.

[0015] Preferably, a partition is provided on the top of the memory; the booster is a telescopic driver disposed on the partition and whose output end is connected to the guide rod.

[0016] Preferably, the oiling mechanism further includes a second support member and a second lifting assembly disposed on the second support member, the output end of the second lifting assembly being connected to the memory or shelf.

[0017] Preferably, the oil outlet holes are arranged in several rings at uniform intervals along the axial direction of the oil rod.

[0018] Preferably, the outer wall of the oil rod is provided with a coating layer for absorbing oil, and the coating layer is provided with a plurality of through holes corresponding to the oil outlet holes. Attached Figure Description

[0019] Figure 1 This is a front view of the present invention;

[0020] Figure 2 This is a cross-sectional view of the present invention;

[0021] Figure 3 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the overall structure of another embodiment of the present invention;

[0023] Figure 5 A schematic diagram of the oil rod structure of this utility model.

[0024] Explanation of the labels in the diagram:

[0025] 1. Memory; 11. Cavity; 12. Push plug; 13. Oil nozzle; 2. Oil; 3. Oil rod; 31. Cavity; 32. Outlet hole; 33. Coating layer; 331. Through hole; 4. Valve cavity; 5. Spacer; 6. Booster; 7. First lifting assembly; 8. First support member. Detailed Implementation

[0026] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] refer to Figure 1-2 An automatic oiling mechanism for the inner wall of a valve cavity includes: a storage device 1, an oil rod 3, and an auxiliary device 6. The storage device 1 has a cavity 11 for storing oil 2, and a pusher 12 with its outer ring tightly attached to the inner wall of the cavity 11. The storage device 1 also has an oil inlet 13. The oil rod 3 is located at the bottom of the storage device 1, and has an internal cavity 31 communicating with the cavity 11. Several oil outlet holes communicating with the cavity 31 are evenly arranged around its outer wall for embedding into the valve cavity 4 to oil the inner wall of the valve cavity 4. The shape of the oil rod 3 is adapted to the shape of the valve cavity 4. The auxiliary device 6 pushes the pusher 12 downwards to cause the oil 2 to overflow from the oil outlet holes to oil the inner wall of the valve cavity 4.

[0028] Understandably, the memory 1 is a component for storing the oil 2, such as a canister structure or the outer tube structure of a syringe, but not limited to these. The pusher 12 is a component for pressing down the oil 2, such as a disc structure or a spherical structure, but not limited to these. The nozzle 13 is a component for injecting the oil 2 or gas into the cavity 11, such as a one-way valve structure that injects only into the cavity 11, or a tube structure or a tube structure combined with a plug structure, but not limited to these. The shape of the oil rod 3 is adapted to the shape of the valve cavity 4, that is, after the oil rod 3 is embedded in the valve cavity 4, the outer wall of the oil rod 3 can be close to the inner wall of the valve cavity 4, for example, the valve cavity 4 is cylindrical, and the oil rod 3 is also cylindrical, but not limited to these. The booster 6 can be pneumatic or mechanical, but not limited to these.

[0029] With this configuration, the oil rod 3 is inserted into the valve cavity 4. The booster 6 presses down on the pusher 12, causing the oil 2 to overflow from the oil outlet, thus automatically coating the inner wall of the valve cavity 4. Because the shape of the oil rod 3 matches the shape of the valve cavity 4, and the oil outlet is evenly arranged around the outer wall of the oil rod 3, the oil 2 can be evenly coated on the inner wall of the valve cavity 4 during oil dispensing, unaffected by human factors. During oil filling, the booster 6 can move the pusher 12 back to its original position and above the oil filling nozzle 13, from which the oil 2 is injected into the cavity 11.

[0030] In some embodiments, the booster 6 is an air pump connected to the oil inlet 13 to inflate the cavity 11 with air, thus pressing down the push plug. The air pump is not shown in the accompanying drawings. It can be externally mounted on the ground or other components and connected to the oil inlet 13 via a pipe. The oil inlet 13 can be used for both oil filling and air filling. If only one oil inlet 13 is provided, air filling and oil filling can be used separately by detaching the pipe connected to the oil inlet 13. Alternatively, two oil inlets 13 can be provided, one specifically for oil filling and the other specifically for air filling. A control valve can also be installed on the air pump to precisely control the air volume, thereby precisely controlling the oil output and achieving consistency in the amount of oil applied to each valve cavity 4. Thus, the air pump inflation method is structurally simple and easy to control.

[0031] Further reference Figure 3 The oiling mechanism also includes a first support member 8 and a first lifting component 7 disposed on the first support member 8. The output end of the first lifting component 7 is connected to the memory to drive the oil rod 3 to move up and down.

[0032] Understandably, the first support member 8 is a component that supports the first lifting assembly 7, and can be, for example, a connecting arm structure or a frame structure, but is not limited to these. The first lifting assembly 7 can be a cylinder or an electric push rod, but is not limited to these. Thus, the valve chamber 4 is placed directly below the oil rod 3, and the first lifting assembly 7 drives the oil rod 3 to automatically move down and insert into the valve chamber 4 for oiling. Of course, to improve the uniformity of oiling, the oil rod 3 can also be driven to move up and down reciprocally to oil the valve chamber 4.

[0033] In some embodiments, reference Figure 4 The pusher 12 is provided with a guide rod that vertically guides the pusher 12 to the top shaft hole of the memory. Here, the guide rod is preferably located at the center of the pusher 12, so that it can vertically guide the pusher 12 when it is pressed down and prevent the pusher 12 from tipping over.

[0034] Furthermore, a partition 5 is provided on the top of the memory 1; the booster 6 is a telescopic actuator mounted on the partition 5 with its output end connected to the guide rod. The partition 5 is a component for fixing the telescopic actuator, and can be, for example, a frame structure or a combination structure of a support rod and a plate, but is not limited to these. The telescopic actuator is a component for pushing the guide rod and thus pressing down the pusher 12, and can be, for example, a cylinder or an electric push rod. In this way, by using the telescopic actuator in conjunction with the guide rod, the pressing down of the pusher 12 can be made more stable.

[0035] Furthermore, the oiling mechanism also includes a second support member and a second lifting assembly mounted on the second support member. The output end of the second lifting assembly is connected to the memory or the shelf 5. Here, the second support member and the second lifting assembly have similar structures and functions to the first support member 8 and the first lifting assembly 7, and will not be described in detail here.

[0036] In some embodiments, the oil outlet holes are evenly spaced in several rings along the axial direction of the oil rod 3. Here, the oil rod 3 is vertically arranged, and the several rings of oil outlet holes can cover the outer wall of the oil rod 3. This allows the oil to cover the entire inner wall of the valve cavity 4 as much as possible during oiling.

[0037] In some embodiments, reference Figure 5 The outer wall of the oil rod 3 is provided with a coating layer 33 for absorbing oil, and the coating layer 33 has several through-holes 331 corresponding to the oil outlet holes. Here, the coating layer 331 can be made of cloth or sponge, but is not limited to these. In this way, the coating layer 33 can absorb the oil 2 overflowing from the oil outlet holes and coat it on the inner wall of the valve cavity 4. Compared with the rigid direct contact between the oil rod 3 and the valve cavity 4, the coating layer 33 has a certain degree of elasticity, and the oil coating will be more uniform.

[0038] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. An automatic oiling mechanism for the inner wall of a valve cavity, characterized in that, include: The memory has an internal cavity for storing oil, and a pusher with an outer ring tightly attached to the inner wall of the cavity is provided inside the cavity. The memory is also provided with an oil filling nozzle. An oil rod is disposed at the bottom of the memory, with an internal cavity communicating with the cavity. Several oil outlet holes communicating with the cavity are evenly arranged around the outer wall. It is used to be embedded in the valve cavity to apply oil to the inner wall of the valve cavity, and the shape of the oil rod is adapted to the shape of the valve cavity. as well as The booster is used to push the pusher down to make oil overflow from the oil outlet to coat the inner wall of the valve chamber.

2. The automatic oiling mechanism for the inner wall of a valve cavity according to claim 1, characterized in that, The booster is an air pump, which is connected to the oil nozzle to inflate the cavity with air to push the pusher down.

3. The automatic oiling mechanism for the inner wall of a valve cavity according to claim 2, characterized in that, The oiling mechanism further includes a first support member and a first lifting component disposed on the first support member. The output end of the first lifting component is connected to the memory to drive the oil rod to move up and down.

4. The automatic oiling mechanism for the inner wall of a valve cavity according to claim 1, characterized in that, The pusher is provided with a guide rod that vertically guides and engages with the shaft hole at the top of the memory.

5. The automatic oiling mechanism for the inner wall of a valve cavity according to claim 4, characterized in that, The memory is provided with a partition on top; the booster is a telescopic driver that is mounted on the partition and whose output end is connected to the guide rod.

6. The automatic oiling mechanism for the inner wall of a valve cavity according to claim 5, characterized in that, The oiling mechanism also includes a second support member and a second lifting component disposed on the second support member, the output end of the second lifting component being connected to the memory or shelf.

7. The automatic oiling mechanism for the inner wall of a valve cavity according to claim 1, characterized in that, The oil outlet holes are evenly spaced in several circles along the axial direction of the oil rod.

8. The automatic oiling mechanism for the inner wall of a valve cavity according to claim 7, characterized in that, The outer wall of the oil rod is provided with a coating layer for absorbing oil, and the coating layer is provided with a number of through holes corresponding to the oil outlet holes.