Viscous material pump body with superposed vacuum negative pressure

By designing a larger plunger and piston linkage in the grease machine, the superposition of vacuum negative pressure in the oil reservoir is increased, solving the problem of grease being difficult to suck in, and realizing effective grease suck-in at low temperatures and vacuum negative pressure suck-in under sealed conditions.

CN223924488UActive Publication Date: 2026-02-17楼正左
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Patent Information

Application Number
CN202520184490.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-06
Publication Date
2026-02-17
Estimated Expiration
2035-02-06

AI Technical Summary

Technical Problem

The existing plunger outer diameter and stroke design of grease machines result in insufficient vacuum pressure, making it difficult for grease to pass through the filter and be drawn into the oil reservoir. Especially at low temperatures, the grease becomes more viscous, and the piston and plunger cannot work together to form a seal, thus failing to generate vacuum pressure to draw in the grease.

Method used

Design a pump body for viscous materials with superimposed vacuum negative pressure, using a larger plunger and a larger piston linked to it. By increasing the superimposed vacuum negative pressure in the oil storage tank, it is ensured that the lubricating grease can be drawn in through the filter screen. The piston can be cylindrical, disc-shaped, or square-shaped, as long as it can be linked with the plunger to form a sealing condition.

Benefits of technology

When the grease does not flow at room temperature, the combined design of the plunger and piston achieves the superposition of vacuum negative pressure, which allows the grease to be effectively drawn into the oil reservoir, solving the problem of grease viscosity at low temperatures and ensuring effective intake under sealed conditions.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223924488U_ABST
Patent Text Reader

Abstract

The utility model discloses a stacked vacuum negative pressure viscous material pump body, which relates to the field of pump bodies, and comprises a pump body, a discharge hole, a one-way valve, a one-way valve compression spring, a discharge hole, a plunger rod, a thick piston, a plunger rod compression spring, an eccentric shaft and an eccentric shaft bearing. In order to increase the vacuum negative pressure of the pump body, the thicker piston is linked at the tail end of the plunger rod, the vacuum negative pressure generated by the plunger rod in the discharge port and the vacuum negative pressure generated by the superposed thick piston are superposed together, lubricating grease is easily sucked through the filter screen, and the superposed piston can be in any shape, a cylinder shape, a wafer shape, a square sheet shape and a square shape. As long as the piston can be linked with the plunger, form a certain sealing condition with the pump body and can generate vacuum negative pressure to suck lubricating grease into the oil storage bin, the piston is cylindrical currently, the plunger and the linked thick piston are rebounded by the spring to retract, and the eccentric shaft rotates to extrude the thick piston.
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Description

TECHNICAL FIELD

[0001] The utility model relates to pump body field, concretely is a kind of viscous material pump body of superimposed vacuum negative pressure. BACKGROUND

[0002] Pump body is an important device of hydraulic system. It relies on the reciprocating motion of plunger in cylinder, so that the volume of sealed working cavity changes to realize oil absorption and oil pressing. Pump body has the advantages of high rated pressure, compact structure, high efficiency and convenient flow regulation. Pump body is widely used in high pressure, large flow and flow regulation occasions, such as hydraulic machine, engineering machinery and ship.

[0003] Nowadays, the outer diameter of plunger is generally 8mm, and the stroke is 20mm in order to improve the pressure. The vacuum negative pressure formed in the oil storage bin is not large when pump body absorbs butter, and the lubricating grease is not easy to be sucked into the oil storage bin through the filter screen with 1mm hole. Especially in winter, the lubricating grease is more dense, the piston and plunger cannot be linked, cannot form a certain sealing condition with pump body, and cannot produce vacuum negative pressure to suck lubricating grease into the oil storage bin.

[0004] Therefore, the skilled in the art provides a viscous material pump body of superimposed vacuum negative pressure to solve the problems raised in the above background. CONTENT OF UTILITY MODEL

[0005] The utility model aims at providing a viscous material pump body of superimposed vacuum negative pressure to solve the problems raised in the above background that nowadays, the outer diameter of plunger is generally 8mm, and the stroke is 20mm in order to improve the pressure. The vacuum negative pressure formed in the oil storage bin is not large when pump body absorbs butter, and the lubricating grease is not easy to be sucked into the oil storage bin through the filter screen with 1mm hole. Especially in winter, the lubricating grease is more dense, the piston and plunger cannot be linked, cannot form a certain sealing condition with pump body, and cannot produce vacuum negative pressure to suck lubricating grease into the oil storage bin.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] The utility model provides a viscous material pump body of superimposed vacuum negative pressure, including oil storage bucket, oil storage bucket barrel, gear group and bottom support block, be equipped with the pump body in the oil storage bucket, be equipped with cavity isolation plate in the oil storage bucket barrel, the outer wall of cavity isolation plate is equipped with side hole, the top surface of cavity isolation plate is equipped with barrel upper cavity, the bottom surface of cavity isolation plate is equipped with barrel bottom cavity, the top surface of bottom support block is equipped with drive case, the outer wall of drive case is equipped with drive motor, one side of drive motor is equipped with connecting wire, the top surface of drive case is equipped with locking screw block, the top surface of drive case is sleeved with rotary stirring vane, the top surface of drive case is equipped with pump body oil storage, one end of drive case is sleeved with discharge gate, the top surface of gear group is sleeved with drive motor and rotary connector, the top surface of rotary connector is equipped with rotating shaft, one side of rotary connector is equipped with piston, one side of piston is equipped with piston spring, one side of piston spring is equipped with discharge gate, be equipped with guide rod in the discharge gate, the inside fixed connection of piston is equipped with plunger rod, the inboard side of pump body is provided with storage cavity, the side of discharge gate is provided with inlet and outlet, the inboard side of pump body is fixedly provided with piston sleeve, the bottom surface of pump body is inserted with eccentric shaft, the outside of eccentric shaft is fixedly sleeved with eccentric shaft bearing, the top surface of pump body is fixedly connected with slide sleeve bearing, the top surface of pump body is horizontally connected with filter screen, the inboard side of pump body is connected with one way valve steel ball, the side of one way valve steel ball is horizontally connected with one way valve spring.

[0008] As a preferred embodiment of the utility model: the oil storage bucket includes an oil storage bucket barrel, a cavity isolation plate, a barrel upper cavity, a barrel bottom cavity, and a side hole.

[0009] As a preferred embodiment of the utility model: the pump body includes a discharge gate, a drive case, a bottom support block, a connecting wire, a drive motor, a rotary stirring vane, a pump body oil storage, and a locking screw block. The inside of the pump body and the piston are provided with a piston sleeve structure.

[0010] As a preferred embodiment of the utility model: the plunger rod is located inside the piston, the piston spring, and the discharge gate.

[0011] As a preferred embodiment of the utility model: the drive case includes a gear group, a rotary connector, a rotating shaft, a piston, a piston spring, a discharge gate, a guide rod, and a plunger rod.

[0012] As a preferred embodiment of the utility model: the central axis of the piston, the piston spring, the discharge gate, the guide rod, and the plunger rod is perpendicular to the central axis of the rotary connector and the rotating shaft.

[0013] Compared with the prior art, the utility model has the advantages of:

[0014] The utility model relates to a kind of viscous material pump body of superimposed vacuum negative pressure, lubricating grease is thick greasy semi-solid, not flow at room temperature, butter machine is the tool of lubricating grease filling of pump body, pump suction port is set in oil storage depot, when plunger is retracted in discharge port, vacuum is formed in discharge port, and lubricating grease is inhaled, vacuum is also formed in oil storage depot simultaneously, lubricating grease is inhaled in oil storage depot through filter screen, when plunger is moved forward in discharge port, high pressure is generated in discharge port, and lubricating grease is extruded.For increasing vacuum negative pressure, the machine uses thicker plunger, a larger piston is linked on plunger, vacuum negative pressure generated by plunger and piston in oil storage depot is superimposed together, lubricating grease is inhaled through filter screen easily, piston can be arbitrary shape, cylindrical, round piece type, square piece type and square type, as long as it can be linked with plunger, form certain sealing condition with pump body, vacuum negative pressure can be generated to inhale lubricating grease to oil storage depot, and currently cylindrical is used, lubricating grease is viscous semi-solid, lubricating grease will block gap, and good sealing condition is not needed, vacuum negative pressure can be formed. BRIEF DESCRIPTION OF DRAWINGS

[0015] Other features, objects, and advantages of the utility model will become more apparent through reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 It is a kind of viscous material pump body of superimposed vacuum negative pressure whole three-dimensional structure schematic view;

[0017] Figure 2 It is a kind of viscous material pump body of superimposed vacuum negative pressure in whole top view three-dimensional structure schematic view;

[0018] Figure 3 It is a kind of viscous material pump body of superimposed vacuum negative pressure in whole bottom view three-dimensional structure schematic view;

[0019] Figure 4 It is a kind of viscous material pump body of superimposed vacuum negative pressure in pump body three-dimensional structure schematic view.

[0020] Figure 5 It is a kind of viscous material pump body of superimposed vacuum negative pressure in pump body internal structure schematic view.

[0021] Figure 6 It is a kind of viscous material pump body of superimposed vacuum negative pressure in pump body internal equiaxial side view structure schematic view;

[0022] Figure 7 It is a kind of viscous material pump body of superimposed vacuum negative pressure in pump body three-dimensional structure schematic view;

[0023] Figure 8 It is a kind of viscous material pump body of superimposed vacuum negative pressure in pump body internal structure schematic view;

[0024] Figure 9 This is a front view cross-sectional diagram of a pump body in a pump body for viscous materials with superimposed vacuum negative pressure.

[0025] In the diagram: 1. Oil storage tank; 101. Oil storage tank body; 102. Cavity partition plate; 103. Upper cavity of the tank; 104. Bottom cavity of the tank; 105. Side through hole; 2. Pump body; 201. Discharge port; 202. Drive box; 2021. Gear set; 2022. Rotary connector; 2023. Rotating shaft; 2024. Piston; 2025. Piston spring; 2026. Discharge port one; 202 7. Guide rod; 2028. Piston rod; 203. Bottom support block; 204. Connecting wire; 205. Drive motor; 206. Rotating stirring blade; 207. Pump body oil storage tank; 208. Locking screw block; 3. Material storage chamber; 4. Inlet and outlet; 5. Piston sleeve; 6. Eccentric shaft; 7. Eccentric shaft bearing; 8. Sliding sleeve bearing; 9. Filter screen; 10. One-way valve steel ball; 11. One-way valve spring. Detailed Implementation

[0026] Please see Figures 1-6The utility model discloses an embodiment of a kind of viscous material pump body of superimposed vacuum negative pressure, including oil storage bucket 1, oil storage bucket barrel body 101, gear set 2021 and bottom support block 203, pump body 2 is equipped in oil storage bucket 1, lubricating grease is thick grease-like semi-solid, not flow at normal temperature, butter machine is the tool of pump body greasing, pump body suction port is arranged in oil storage bin, when plunger is retracted in discharge port, vacuum is formed in discharge port, and lubricating grease is inhaled, vacuum is also formed in oil storage bin simultaneously, lubricating grease is inhaled in oil storage bin by filter screen, when plunger is moved forward in discharge port, high pressure is generated in discharge port, and lubricating grease is extruded. Cavity isolation plate 102 is equipped in oil storage bucket barrel body 101, the outer wall of cavity isolation plate 102 is equipped with side through-hole 105, the top surface of cavity isolation plate 102 is equipped with barrel upper cavity 103, the bottom surface of cavity isolation plate 102 is equipped with barrel bottom cavity 104, the top surface of bottom support block 203 is equipped with drive box 202, the outer wall of drive box 202 is equipped with driving motor 205, one side of driving motor 205 is equipped with connecting wire 204, the top surface of drive box 202 is equipped with locking screw block 208, the top surface of drive box 202 is sleeved with rotary stirring vane 206, the top surface of drive box 202 is equipped with pump oil storage bin 207, one end of drive box 202 is sleeved with discharge port 201, when using, cavity isolation plate 102 can divide oil storage bucket barrel body 101 into barrel upper cavity 103 and barrel bottom cavity 104, the top surface of barrel upper cavity 103 is equipped with rotary stirring vane 206 and pump oil storage bin 207, discharge port 201, drive box 202, bottom support block 203, connecting wire 204, driving motor 205 and locking screw block 208 are all arranged in barrel bottom cavity 104, and the effect of bottom support is formed to drive box 203, and piston sleeve structure is arranged between the inside of pump body 2 and piston 2024, driving motor 205 and rotary connector 2022 are sleeved on the top surface of gear set 2021, rotary shaft 2023 is equipped on the top surface of rotary connector 2022, piston 2024 is equipped on one side of rotary connector 2022, piston spring 2025 is equipped on one side of piston 2024, discharge port one 2026 is equipped on one side of piston spring 2025, guide rod 2027 is equipped in discharge port 201, and plunger rod 2028 is fixedly connected in the inside of piston 2024.

[0027] Please refer to Figure 1 、 Figure 4 and Figure 6, the oil storage barrel 1 includes an oil storage barrel body 101, a cavity isolation plate 102, a barrel top cavity 103, a barrel bottom cavity 104 and a side edge through hole 105. The driving motor 205 drives the gear set 2021 on the top surface of the bottom support block 203 to perform gear driving, the top surface of the gear set 2021 is provided with a rotating connector 2022, the rotating connector 2022 drives the rotating shaft 2023 on the top to move, thereby driving the rotating stirring blade 206 to rotate and stir, and the rotating connector 2022 drives the piston 2024, the piston spring 2025 and the plunger rod 2028 inside the discharge port one 2026 to move. The pump body 2 includes a discharge port 201, a driving box 202, a bottom support block 203, a connecting wire 204, a driving motor 205, a rotating stirring blade 206, a pump body oil storage bin 207 and a locking screw block 208. The plunger rod 2028 is located inside the piston 2024, the piston spring 2025 and the discharge port one 2026. The driving box 202 includes a gear set 2021, a rotating connector 2022, a rotating shaft 2023, a piston 2024, a piston spring 2025, a discharge port one 2026, a guide rod 2027 and a plunger rod 2028. In order to increase the vacuum negative pressure, the machine uses a larger plunger rod 2028, and a larger piston is connected with the plunger rod 2028. The vacuum negative pressure generated by the plunger rod 2028 and the piston in the pump body oil storage bin 207 is superimposed together, so that the lubricating grease is easily sucked through the filter screen. The piston can be of any shape, such as cylindrical, disc-shaped, square-shaped and cubic, as long as it can be connected with the plunger rod 2028, form a certain sealing condition with the pump body, generate vacuum negative pressure and suck the lubricating grease into the pump body oil storage bin 207. The present application adopts a cylindrical shape. The lubricating grease is a viscous semi-solid, and the lubricating grease will block the gap, so that the vacuum negative pressure can be formed without good sealing condition. The central axes of the piston 2024, the piston spring 2025, the discharge port one 2026, the guide rod 2027 and the plunger rod 2028 are perpendicular to the central axes of the rotating connector 2022 and the rotating shaft 2023. The inner side edge of the pump body 2 is provided with a storage cavity 3. The side edge of the discharge port one 2026 is provided with an inlet and outlet port 4. The inner side edge of the pump body 2 is fixedly provided with a piston sleeve 5. The bottom surface of the pump body 2 is inserted with an eccentric shaft 6. The outer side edge of the eccentric shaft 6 is fixedly sleeved with an eccentric shaft bearing 7. The top surface of the pump body 2 is fixedly clamped with a sliding sleeve bearing 8. The top surface of the pump body 2 is horizontally clamped with a filter screen 9. The inner side edge of the pump body 2 is clamped and provided with a one-way valve steel ball 10. The side edge of the one-way valve steel ball 10 is horizontally butt jointed with a one-way valve spring 11.

[0028] It needs to be explained that the utility model is a kind of viscous material pump body of superimposed vacuum negative pressure, including 1, oil storage bucket;101, oil storage bucket body;102, cavity isolation plate;103, barrel cavity;104, barrel bottom cavity;105, side through-hole;2, pump body;201, discharge port;202, drive box;2021, gear set;2022, rotating connector;2023, rotating shaft;2024, piston;2025, piston spring;2026, discharge port one;2027, guide rod;2028, plunger rod;203, bottom support block;204, connecting wire;205, drive motor;206, rotary stirring blade;207, pump body oil storage;208, locking screw block;3, storage cavity;4, inlet and outlet;5, piston sleeve;6, eccentric shaft;7, eccentric shaft bearing;8, sliding sleeve bearing;9, filter screen;10, one-way valve steel ball;11, one-way valve spring, component is all general standard parts or the component known to those skilled in the art, its structure and principle are all known to the technical personnel and can be known by conventional experimental method.

[0029] The working principle of the utility model is: the lubricating grease is thick and greasy semi-solid, and does not flow at room temperature, the butter machine is a tool for filling lubricating grease in the pump body, the pump body suction inlet is arranged in the oil storage bin, when the plunger is retracted in the discharge port, vacuum is formed in the discharge port, the lubricating grease is sucked, vacuum is also formed in the oil storage bin, the lubricating grease is sucked into the oil storage bin through the filter screen, when the plunger is moved forward in the discharge port, high pressure is generated in the discharge port, and the lubricating grease is squeezed out. When in use, the cavity isolation plate 102 can divide the oil storage barrel body 101 into the upper cavity 103 and the bottom cavity 104, the top surface of the upper cavity 103 is provided with the rotary stirring blade 206 and the pump body oil storage bin 207, the discharge port 201, the driving box 202, the bottom supporting block 203, the connecting wire 204, the driving motor 205 and the locking screw block 208 are all arranged in the bottom cavity 104, the bottom supporting effect is realized through the bottom supporting block 203, then the driving motor 205 drives the gear set 2021 on the top surface of the bottom supporting block 203 to realize gear driving, the top surface of the gear set 2021 is provided with the rotary connector 2022, the rotary connector 2022 drives the rotary shaft 2023 on the top to move, so as to drive the rotary stirring blade 206 to rotate and stir, meanwhile, the rotary connector 2022 drives the plunger rod 2028 in the piston 2024, the piston spring 2025 and the discharge port one 2026 to move, in order to increase the vacuum negative pressure, the machine uses a thicker plunger rod 2028, a larger piston is linked on the plunger rod 2028, the vacuum negative pressure generated by the plunger rod 2028 and the piston in the pump body oil storage bin 207 is superimposed together, so that the lubricating grease is easily sucked through the filter screen, the piston can be of any shape, cylindrical, round piece type, square piece type and square type, as long as the piston can be linked with the plunger rod 2028, a certain sealing condition is formed with the pump body, the vacuum negative pressure can be generated to suck the lubricating grease into the pump body oil storage bin 207, and the cylindrical shape is adopted at present, the lubricating grease is viscous semi-solid, and the lubricating grease can block the gap, so that the vacuum negative pressure can be formed without good sealing condition.

[0030] The above is only the preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A viscous material pump body superimposed with vacuum negative pressure, comprising an oil storage bucket (1), an oil storage bucket body (101), a gear set (2021) and a bottom support block (203), characterized in that, The oil storage bucket (1) is provided with a pump body (2), the oil storage bucket barrel (101) is provided with a cavity isolation plate (102), the outer wall of the cavity isolation plate (102) is provided with a side hole (105), the top surface of the cavity isolation plate (102) is provided with a barrel cavity (103), the bottom surface of the cavity isolation plate (102) is provided with a barrel bottom cavity (104), the top surface of the bottom support block (203) is provided with a drive box (202), the outer wall of the drive box (202) is provided with a drive motor (205), one side of the drive motor (205) is provided with a connecting wire (204), the top surface of the drive box (202) is provided with a locking screw block (208), the top surface of the drive box (202) is sleeved with a rotating stirring blade (206), the top surface of the drive box (202) is provided with a pump body oil storage bin (207), one end of the drive box (202) is sleeved with a discharge port (201), the top surface of the gear set (2021) is sleeved with a drive motor (205) and a rotating connector (2022), the top surface of the rotating connector (2022) is provided with a rotating shaft (2023), one side of the rotating connector (2022) is provided with a piston (2024), one side of the piston (2024) is provided with a piston spring (2025), one side of the piston spring (2025) is provided with a discharge port (2026), the discharge port (201) is provided with a guide rod (2027), the piston (2024) is fixedly connected with a plunger rod (2028) in the inside, the inside of the pump body (2) is provided with a storage cavity (3), the side of the discharge port (2026) is provided with an inlet and outlet port (4), the bottom surface of the pump body (2) is inserted with an eccentric shaft (6), the eccentric shaft (6) is fixedly sleeved with an eccentric shaft bearing (7) on the outside, the top surface of the pump body (2) is fixedly connected with a sliding sleeve bearing (8), the top surface of the pump body (2) is horizontally connected with a filter screen (9), the inside of the pump body (2) is connected with a one-way valve steel ball (10), the side of the one-way valve steel ball (10) is horizontally connected with a one-way valve spring (11).

2. The pump body according to claim 1, wherein The oil storage bucket (1) includes an oil storage bucket barrel (101), a cavity isolation plate (102), a barrel cavity (103), a barrel bottom cavity (104), and a side hole (105).

3. The pump body according to claim 1, wherein The pump body (2) includes a discharge port (201), a drive box (202), a bottom support block (203), a connecting wire (204), a drive motor (205), a rotating stirring blade (206), a pump body oil storage bin (207), and a locking screw block (208), and the inside of the pump body (2) is provided with a piston sleeve structure between the piston (2024).

4. The pump body according to claim 1, wherein The plunger rod (2028) is located in the inside of the piston (2024), the piston spring (2025), and the discharge port (2026).

5. The pump body of claim 1, wherein The driving box (202) comprises a gear set (2021), a rotating connector (2022), a rotating shaft (2023), a piston (2024), a piston spring (2025), a discharge port I (2026), a guide rod (2027) and a plunger rod (2028).

6. The pump body of claim 1, wherein The central axes of the piston (2024), the piston spring (2025), the discharge port I (2026), the guide rod (2027) and the plunger rod (2028) are vertically arranged with the central axes of the rotating connector (2022) and the rotating shaft (2023).