Piston oil outlet device

Abstract

The utility model belongs to the technical field of mechanical equipment, and particularly relates to a piston oil outlet device. The oil cylinder is provided with an oil storage cavity, the oil inlet pipe is arranged outside the oil cylinder, one end of the oil inlet pipe is communicated with the oil storage cavity, the oil outlet pipe is arranged outside the oil cylinder, one end of the oil outlet pipe is communicated with the oil storage cavity, the piston assembly is movably arranged in the oil storage cavity, and the piston driving part is used for driving the piston assembly to move. The piston driving piece drives the piston assembly to move in the oil storage cavity, negative pressure is generated in the oil storage cavity, lubricating oil can be sucked into the oil storage cavity through the oil inlet pipe, then the piston driving piece drives the piston assembly to move reversely in the oil storage cavity, and the lubricating oil in the oil storage cavity is pressed out and discharged through the oil outlet pipe. The oil inlet pipe is prevented from being soaked in oil for a long time to cause blockage, and normal refueling work is guaranteed.

Description

[Technical Field]

[0001] This utility model belongs to the field of mechanical equipment technology, and in particular relates to a piston oil outlet device. [Background Technology]

[0002] Existing mechanical equipment requires lubrication during normal operation, thus necessitating the use of auxiliary equipment to deliver lubricating oil. A utility model patent with application number CN201922419523.0 discloses an electric lubricating grease pump. In its operation, oil from the storage tank enters the main pump body through a drain hole. A motor then drives a cam to rotate, which in turn drives a piston rod to force the oil out of the outlet. However, because the drain hole is located on the main pump body, the oil in the storage tank is constantly immersed in the drain hole, which can easily lead to blockage and affect normal oil output. [Utility Model Content]

[0003] The purpose of this invention is to provide a piston oil outlet device that avoids clogging and ensures normal oil output.

[0004] This utility model is achieved by the following technical solution:

[0005] A piston oil delivery device, comprising:

[0006] The hydraulic cylinder has an oil storage chamber inside;

[0007] The oil inlet pipe is located outside the oil cylinder, with one end connected to the oil storage chamber;

[0008] The oil outlet pipe is located outside the oil cylinder, and one end is connected to the oil storage chamber;

[0009] The piston assembly is movably located within the oil reservoir.

[0010] Piston drive, which is used to drive the movement of piston assembly.

[0011] As described above, in a piston oil delivery device, the piston drive component includes a hydraulic cylinder or a pneumatic cylinder.

[0012] As described above, in a piston oil outlet device, an oil inlet check valve is provided at the end of the oil inlet pipe away from the oil storage chamber.

[0013] As described above, in a piston oil outlet device, an oil outlet one-way valve is provided at the end of the oil outlet pipe away from the oil storage chamber.

[0014] As described above, in a piston oil delivery device, the piston assembly includes:

[0015] A piston block is movably disposed within an oil reservoir, and a sealing mounting groove is provided on the periphery of the piston block.

[0016] The piston rod has one end connected to the piston block and the other end connected to the drive end of the piston drive component.

[0017] A sealing element, which is embedded in the sealing mounting groove.

[0018] As described above, in a piston oil outlet device, the piston block is threadedly connected to one end of the piston rod.

[0019] As described above, in a piston oil delivery device, the oil cylinder includes:

[0020] The cylinder body has a relief hole at one end and an internal thread at the other end;

[0021] The cylinder head has an oil supply hole that communicates with the oil reservoir and an external thread that connects with the internal thread.

[0022] The piston oil delivery device described above also includes an oil delivery pipe, one end of which is detachably connected to the cylinder head and communicates with the oil delivery hole, and the other end is communicated with the oil inlet pipe and the oil outlet pipe.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] This utility model provides a piston oil outlet device, including an oil cylinder with an oil storage chamber, an oil inlet pipe located outside the oil cylinder and connected at one end to the oil storage chamber, an oil outlet pipe located outside the oil cylinder and connected at one end to the oil storage chamber, a piston assembly movably located inside the oil storage chamber, and a piston drive component for driving the piston assembly. In use, the oil inlet pipe is inserted into the oil tank, and the piston drive component drives the piston assembly to move within the oil storage chamber, creating a negative pressure in the oil storage chamber. This allows lubricating oil to be drawn into the oil storage chamber through the oil inlet pipe. Then, the piston drive component drives the piston assembly to move in the opposite direction within the oil storage chamber, thereby pressurizing the lubricating oil out of the oil storage chamber and discharging it through the oil outlet pipe. This avoids the oil inlet pipe from being soaked in oil for a long time, causing blockage and ensuring normal refueling operation. [Attached Image Description]

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0026] Figure 1 This is a schematic diagram of the piston oil outlet device in a specific embodiment of this utility model;

[0027] Figure 2 This is a cross-sectional view of the piston oil outlet device in a specific embodiment of this utility model;

[0028] Figure 3 This is an exploded view of the piston oil outlet device in a specific embodiment of this utility model;

[0029] Figure 4 This is an exploded view of the piston oil outlet device in a specific embodiment of this utility model.

Detailed Implementation Methods

[0030] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0031] When ordinal numbers such as "first" and "second" are mentioned in the embodiments of this utility model, unless they actually express the meaning of order according to the context, they should be understood as being used only for differentiation.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] Specific embodiments, such as Figure 1-4 The piston oil outlet device shown includes: an oil cylinder 1 with an oil storage chamber 2 inside; an oil inlet pipe 3 located outside the oil cylinder 1, with one end connected to the oil storage chamber 2; an oil outlet pipe 4 located outside the oil cylinder 1, with one end connected to the oil storage chamber 2; a piston assembly 5 movably disposed within the oil storage chamber 2; and a piston drive 6 for driving the piston assembly 5. In use, the oil inlet pipe is inserted into the oil container, and the piston drive 6 drives the piston assembly to move within the oil storage chamber, creating a negative pressure in the oil storage chamber. This draws lubricating oil into the oil storage chamber through the oil inlet pipe. The piston drive 6 then drives the piston assembly to move in the opposite direction within the oil storage chamber, forcing the lubricating oil out of the storage chamber and discharging it through the oil outlet pipe. This prevents the oil inlet pipe from being constantly immersed in oil and causing blockage, ensuring normal refueling operation.

[0034] Specifically, the piston drive component 6 includes a hydraulic cylinder or a pneumatic cylinder. Using the extension and retraction end of the hydraulic cylinder or pneumatic cylinder to directly drive the linear movement of the piston assembly 5 is more efficient and less costly than using the rotating end of the motor to drive the cam to rotate and thus move the piston rod linearly.

[0035] In addition, an oil inlet check valve 71 is provided at the end of the oil inlet pipe 3 away from the oil storage chamber 2. By setting the oil inlet check valve 71, the lubricating oil can only enter the oil storage chamber 2 through the oil inlet pipe 3, preventing the lubricating oil from being discharged from the oil inlet pipe 3 and preventing grease backflow.

[0036] Furthermore, an oil outlet check valve 72 is provided at the end of the oil outlet pipe 4 away from the oil storage chamber 2. The oil outlet check valve 72 prevents grease backflow. When the piston drive unit drives the piston assembly to move within the oil storage chamber, creating negative pressure, the oil inlet check valve 71 opens, and lubricating oil enters the oil storage chamber 2 through the oil inlet pipe 3. At this time, the oil outlet check valve 72 closes. When the piston drive unit drives the piston assembly to move in the opposite direction within the oil storage chamber to force the lubricating oil out of the storage chamber and discharge it through the oil outlet pipe, the oil outlet check valve 72 opens, and the oil inlet check valve 71 closes.

[0037] More specifically, the piston assembly 5 includes: a piston block 51, which is movably disposed within the oil storage chamber 2, and the piston block 51 has a sealing mounting groove 511 on its periphery; a piston rod 52, one end of which is connected to the piston block 51, and the other end of which is connected to the driving end of the piston drive member 6; and a seal 53, which is embedded in the sealing mounting groove 511. The seal 53 improves the oil suction and discharge efficiency of the piston assembly 5.

[0038] Furthermore, to facilitate disassembly and replacement, the piston block 51 is threaded to one end of the piston rod 52.

[0039] Furthermore, the hydraulic cylinder 1 includes: a cylinder body 11, one end of which is provided with a relief hole 111 and the other end is provided with an internal thread 112; a cylinder cover 12, which is provided with an oil delivery hole 121 communicating with the oil storage chamber 2 and an external thread 122 threadedly connected to the internal thread 112. This facilitates disassembly and replacement.

[0040] Specifically, the piston oil delivery device further includes an oil supply pipe 8, one end of which is detachably connected to the cylinder head 12 and communicates with the oil supply hole 121, and the other end is communicated with the oil inlet pipe 3 and the oil outlet pipe 4. Specifically, the oil supply pipe 8 is detachably connected to the cylinder head 12 by threads.

[0041] The above description is one embodiment provided in conjunction with specific content, and does not imply that the specific implementation of this utility model is limited to these descriptions. Furthermore, due to different industry naming conventions, it is not limited to the above names or English names. Any methods or structures similar to or identical to those of this utility model, or any technical deductions or substitutions made based on the concept of this utility model, should be considered within the scope of protection of this utility model.

Claims

1. A piston oil outlet device, characterized in that, include: The oil cylinder (1) has an oil storage chamber (2) inside, and the oil cylinder (1) includes: The cylinder body (11) has a relief hole (111) at one end and an internal thread (112) at the other end. The cylinder head (12) is provided with an oil supply hole (121) that communicates with the oil reservoir (2) and an external thread (122) that is threaded to the internal thread (112). The oil inlet pipe (3) is located outside the oil cylinder (1), and one end is connected to the oil storage chamber (2); The oil outlet pipe (4) is located outside the oil cylinder (1), and one end is connected to the oil storage chamber (2); Piston assembly (5), which is movably disposed within oil reservoir (2), includes: Piston block (51) is movably disposed in oil storage chamber (2), and a sealing mounting groove (511) is provided on the periphery of the piston block (51). The piston rod (52) has one end connected to the piston block (51) and the other end connected to the drive end of the piston drive (6); A sealing element (53) is embedded in the sealing mounting groove (511); Piston drive (6) is used to drive the piston assembly (5) to move.

2. The piston oil outlet device according to claim 1, characterized in that, The piston drive (6) includes a hydraulic cylinder or a pneumatic cylinder.

3. The piston oil outlet device according to claim 1, characterized in that, The oil inlet pipe (3) is equipped with an oil inlet check valve (71) at the end away from the oil storage chamber (2).

4. The piston oil outlet device according to claim 1, characterized in that, An oil outlet check valve (72) is provided at the end of the oil outlet pipe (4) away from the oil storage chamber (2).

5. The piston oil outlet device according to claim 1, characterized in that, The piston block (51) is threaded to one end of the piston rod (52).

6. The piston oil outlet device according to claim 1, characterized in that, It also includes an oil supply pipe (8), one end of which is detachably connected to the cylinder head (12) and communicates with the oil supply hole (121), and the other end is communicated with the oil inlet pipe (3) and the oil outlet pipe (4).

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