Oil damper cylinder oil filling gun device

Abstract

The present invention provides an oil damper cylinder oil filling gun device, comprising a handle, a connecting rod, a piston, an oil inlet pipe group, an oil outlet pipe group and a device body; the oil inlet pipe group and the oil outlet pipe group are arranged inside the device body, the handle is connected to the piston, the piston is connected to the oil inlet pipe sleeve of the oil inlet pipe group, and the oil inlet pipe group and the oil outlet pipe group are both provided with flow-guiding elements, so that the fluid therein can only flow in one direction. By operating the piston through the handle, the oil inlet pipe sleeve can form a negative pressure or a positive pressure, so as to perform oil inlet or oil outlet operations. The oil damper cylinder oil filling gun device provided by the present invention can effectively realize continuous oil filling of the oil chamber, and can also realize pressurizing the oil chamber. By using the oil cylinder oil filling gun device, the oil cylinder can also be changed, and the oil can be extracted from the inside of the oil cylinder, so as to realize the integration of the oil filling and oil extraction devices.

Description

Technical Field

[0001] The invention relates to the technical field of energy dissipation and shock absorption, and in particular to an oil damper cylinder oil filling gun device. Background Art

[0002] Oil cylinders are widely used in various equipment, such as hydraulic devices, oil dampers in the field of energy dissipation and shock absorption, etc. The common oil filling methods for closed oil cylinders are direct pouring, or opening a small hole in the oil cylinder and filling it with tools such as a funnel. However, these oil filling methods are difficult to ensure that the oil cavity is completely filled, and high-pressure oil filling of the oil cylinder cannot be achieved.

[0003] In order to solve the above problems existing in the prior art, the present invention provides a cylinder oil filling gun device, which can effectively realize continuous oil filling of the oil chamber and pressurize the oil chamber at the same time. The cylinder oil filling gun device can also realize oil change of the cylinder, and the oil can be extracted from the inside of the cylinder, realizing the integration of oil filling and oil extraction devices. Summary of the invention

[0004] The invention provides an oil damper oil cylinder oil filling gun device, comprising a handle, a connecting rod, a piston, an oil inlet pipe group, an oil outlet pipe group and a device body.

[0005] The device body is provided with a connecting rod seat, the connecting rod is rotatably arranged on the connecting rod seat, and the handle is rotatably connected to the connecting rod; the piston comprises a piston rod and a piston body, the piston body is fixed on the device body, and the piston rod is rotatably connected to the handle via a pin.

[0006] The oil inlet pipe group is arranged inside the device body, and includes an oil inlet branch pipe, an oil inlet pipe sleeve, an upper branch pipe of the oil inlet pipe, and a lower branch pipe of the oil inlet pipe; one end of the oil inlet branch pipe is connected to the oil inlet pipe sleeve, and the other end is connected to the outside of the device body; the oil inlet pipe sleeve is connected to the piston body through the upper branch pipe of the oil inlet pipe.

[0007] The oil outlet pipe group is arranged inside the device body, and includes an oil outlet pipe casing and an oil outlet branch pipe; one end of the oil outlet branch pipe is connected to the oil outlet pipe casing, and the other end is connected to the outside of the device body; the oil outlet pipe casing is connected to the oil inlet pipe casing through the oil inlet pipe lower branch pipe.

[0008] The oil inlet pipe group and the oil outlet pipe group are both provided with flow-guiding elements, so that the fluid therein can only flow in one direction.

[0009] Specifically, an elastic piston is provided at the end of the piston rod, and the elastic piston is in sealing contact with the inner wall of the piston body; a piston cover is provided on the top of the piston body, and the piston rod is inserted into the piston cover; the lower outlet of the piston body is connected to the upper branch of the oil inlet pipe, and the size of the lower outlet is smaller than the diameter of the elastic piston. Specifically, the elastic piston is made of rubber material.

[0010] Specifically, the handle includes a handle body and a handle fork arm, one end of the handle fork arm is rotatably connected to the connecting rod through a pin, and the other end is fixedly connected to the handle body; the piston rod is rotatably fixed to the handle fork arm through a pin.

[0011] Specifically, the guide element is a one-way valve, which is arranged in an oil inlet branch pipe and an oil outlet branch pipe. The one-way valve in the oil inlet branch pipe allows oil to flow into the device body, and the one-way valve in the oil outlet branch pipe allows oil to flow out of the device body.

[0012] Preferably, in another embodiment of the present invention, the flow-guiding element is arranged in the following manner: a first spring and a first sealing ball are arranged in the oil inlet pipe sleeve, and a second spring and a second sealing ball are arranged in the oil outlet pipe sleeve; the diameter of the first sealing ball is larger than the inner diameter of the oil inlet branch pipe, the first sealing ball contacts one end of the first spring, and seals the connection between the oil inlet pipe sleeve and the oil inlet branch pipe under the action of the first spring; the diameter of the second sealing ball is larger than the inner diameter of the lower branch pipe of the oil inlet pipe, the second sealing ball contacts one end of the second spring, and seals the connection between the oil outlet pipe sleeve and the lower branch pipe of the oil inlet pipe under the action of the second spring. Through the above arrangement, the first spring and the first sealing ball, the second spring and the second sealing ball act as flow-guiding elements to make the fluid in the oil inlet pipe group and the oil outlet pipe group flow in one direction respectively. More preferably, the first sealing ball and the second sealing ball are made of elastic material such as rubber.

[0013] The working process of the oil damper cylinder oil filling gun device provided by the present invention is as follows: when the handle drives the piston rod to move upward, negative pressure is formed in the piston body and the oil inlet pipe sleeve connected thereto, so that the guide element in the oil inlet pipe group starts to work, for example, the one-way valve in the oil inlet branch pipe is turned on, or the first sealing ball compresses the first spring under the action of negative pressure, so that the oil inlet branch pipe and the oil inlet pipe sleeve are turned on, and the external hydraulic oil starts to enter the oil inlet pipe group; when the handle drives the piston rod to move downward and squeezes the piston body, when the pressure in the piston body and the oil inlet pipe sleeve connected thereto exceeds the pressure in the damper cylinder, the guide element in the oil outlet pipe group starts to work, for example, the one-way valve in the oil outlet branch pipe is turned on, or the second sealing ball compresses the second spring under the action of negative pressure, so that the lower branch of the oil inlet pipe is turned on and the oil outlet pipe sleeve is turned on, and the hydraulic oil in the oil inlet pipe sleeve starts to be injected into the damper cylinder through the oil outlet branch pipe. When the oil cylinder needs to be pumped out, just connect the oil cylinder to the oil inlet branch pipe and then perform the above operation.

[0014] In summary, the beneficial effects of the present invention are:

[0015] 1. The oil damper cylinder oil filling gun device is used to continuously and controllably fill the oil into the cylinder, and the oil filling rate and amount are fully controllable;

[0016] 2. When filling the damper cylinder with oil, there is basically no need to consider the oil supply pressure, and pressurized oil filling can be achieved;

[0017] 3. The oil cylinder oiling gun device is used. When in use, the oil pumping function can be realized by using it in the reverse direction. The oil in the oil cylinder can be pumped out, realizing the integration of oil filling and oil pumping devices, which is convenient for the maintenance and replacement of the oil damper cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 , 2 It is a schematic diagram of the oil damper cylinder oil filling gun device in the embodiment;

[0020] Figure 3 It is a schematic diagram of the disassembly of parts of the oil damper cylinder oil filling gun device in the embodiment;

[0021] Figure 4 Schematic diagram of the internal structure of the oil damper cylinder oil gun device in the embodiment;

[0022] Figure 5 Schematic diagram of the oil inlet pipe assembly in the embodiment;

[0023] Figure 6Schematic diagram of the oil outlet pipe assembly in the embodiment;

[0024] Figure 7 Schematic diagram of the piston cover in the embodiment. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0026] like Figure 1 As shown in 2, this embodiment provides an oil damper cylinder oil filling gun device, including a handle 1, a connecting rod 2, a piston 3, an oil inlet pipe group 4, an oil outlet pipe group 5 and a device body 6.

[0027] like Figure 3 As shown, the handle 1 includes a handle body 11 and a handle fork arm 12, the handle fork arm 12 is fixedly connected to the handle body 11, one end of the connecting rod 2 is rotatably arranged on the connecting rod seat 21, and the other end is rotatably connected to the handle fork arm 12, and the handle fork arm 12 is rotatably connected to the piston rod 31 of the piston 3, so that the piston rod 31 can be operated through the handle body 11. The above-mentioned rotation connection is realized by a plurality of pins 22.

[0028] The piston 3 includes a piston rod 31 and a piston body 32, wherein the piston body 32 is fixed on the surface of the device body 6, and an elastic piston 33 is provided at the end of the piston rod 31, and the elastic piston 33 is in sealing contact with the inner wall of the piston body 32; a piston cover 34 is provided on the top of the piston body 32, and the piston cover 34 is in the shape of a cover with an edge, and the piston rod 31 is penetrated on the piston cover 34; the lower outlet of the piston body 32 is connected to the upper branch pipe 43 of the oil inlet pipe, and the size of the lower outlet is smaller than the diameter of the elastic piston 33, so that the elastic piston 33 is always confined inside the piston body 32 during the process.

[0029] like Figure 3 , Figure 5 As shown, the oil inlet pipe group 4 includes an oil inlet branch pipe 41, an oil inlet pipe sleeve 42, an oil inlet pipe upper branch pipe 43, and an oil inlet pipe lower branch pipe 44; a first spring 45 and a first sealing ball 46 are provided in the oil inlet pipe sleeve 42, one end of the first spring 45 is fixed to the end of the oil inlet pipe sleeve 42, and the other end contacts the first sealing ball 46 and provides initial pressure to the first sealing ball 46.

[0030] like Figure 3 , Figure 6As shown, the oil outlet pipe assembly 5 includes an oil outlet branch pipe 51 and an oil outlet pipe sleeve 52; a second spring 53 and a second sealing ball 54 are arranged in the oil outlet pipe sleeve 52, one end of the second spring 53 is fixed to the end of the oil outlet pipe sleeve 52, and the other end contacts the second sealing ball 54 and provides initial pressure to the second sealing ball 54. The first sealing ball and the second sealing ball are both made of rubber material.

[0031] The device body 6 includes a body shell 61 and a body base 62, the connecting rod seat 21 and the piston body 31 are arranged on the upper part of the body shell 61, and the oil inlet branch pipe 41 and the oil outlet branch pipe 51 are both penetrated on the side wall of the body shell 61, and the body shell 61 is provided with corresponding mounting holes.

[0032] like Figure 4 As shown, the oil inlet branch pipe 41 passes through the side wall of the main body shell 61 and is connected to the oil inlet pipe sleeve 42. The upper part of the oil inlet pipe sleeve 42 is connected to the piston body 31 through the oil inlet pipe upper branch pipe 43, and the lower part is connected to the oil outlet pipe sleeve 52 through the oil inlet pipe lower branch pipe 44. The oil outlet branch pipe 51 passes through the main body shell 61 and is connected to the oil outlet pipe sleeve 52.

[0033] Among them, the diameter of the oil inlet pipe sleeve 42 is larger than the diameter of the oil inlet branch pipe 41, so the first sealing ball 46 in the oil inlet pipe sleeve 42 seals the connection between the oil inlet branch pipe 41 and the oil inlet pipe sleeve 42 under the pressure of the first spring 45; the diameter of the oil outlet pipe sleeve 52 is larger than the diameter of the oil inlet pipe lower branch pipe 44, so the second sealing ball 54 in the oil outlet pipe sleeve 52 seals the connection between the oil inlet pipe lower branch pipe 44 and the oil outlet pipe sleeve 52 under the pressure of the second spring 53.

[0034] When the present embodiment is in use, negative pressure can be formed in the oil inlet pipe sleeve 42 by lifting the handle body 11 to drive the piston rod 31, so that the oil inlet branch pipe 41 and the oil inlet pipe sleeve 42 are connected; as the handle body 11 is continuously pressurized, the pressure in the oil inlet pipe sleeve 42 continues to increase until the second sealing ball 54 is pushed, so that the lower branch pipe 44 of the oil inlet pipe and the oil outlet pipe sleeve 52 are connected, and oil begins to be injected into the oil cylinder through the oil outlet branch pipe 51.

[0035] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An oil damper cylinder oil filling gun device, characterized in that: It includes a handle, a connecting rod, a piston, an oil inlet pipe group, an oil outlet pipe group and a device body; The device body is provided with a connecting rod seat, the connecting rod is rotatably arranged on the connecting rod seat, and the handle is rotatably connected to the connecting rod; The piston comprises a piston rod and a piston body, wherein the piston body is fixed on the device body, and the piston rod is rotatably connected to the handle; an elastic piston is arranged at the end of the piston rod, and the elastic piston is in sealing contact with the inner wall of the piston body; a piston cover is arranged on the top of the piston body, and the piston rod is passed through the piston cover; the lower outlet of the piston body is connected to the upper branch of the oil inlet pipe, and the size of the lower outlet is smaller than the diameter of the elastic piston; The oil inlet pipe group is arranged inside the device body, and includes an oil inlet branch pipe, an oil inlet pipe sleeve, an upper oil inlet pipe branch pipe, and a lower oil inlet pipe branch pipe; one end of the oil inlet branch pipe is connected to the oil inlet pipe sleeve, and the other end is connected to the outside of the device body; the oil inlet pipe sleeve is connected to the piston body through the upper oil inlet pipe branch pipe; The oil outlet pipe group is arranged inside the device body, and includes an oil outlet pipe casing and an oil outlet branch pipe; one end of the oil outlet branch pipe is connected to the oil outlet pipe casing, and the other end is connected to the outside of the device body; the oil outlet pipe casing is connected to the oil inlet pipe casing through the oil inlet pipe lower branch pipe; The oil inlet pipe group and the oil outlet pipe group are both provided with flow-guiding elements, so that the fluid therein can only flow in one direction; The guide element is arranged in the following manner: a first spring and a first sealing ball are arranged in the oil inlet pipe sleeve, and a second spring and a second sealing ball are arranged in the oil outlet pipe sleeve; the diameter of the first sealing ball is larger than the inner diameter of the oil inlet branch pipe, the first sealing ball contacts one end of the first spring, and seals the connection between the oil inlet pipe sleeve and the oil inlet branch pipe under the action of the first spring; the diameter of the second sealing ball is larger than the inner diameter of the lower branch pipe of the oil inlet pipe, the second sealing ball contacts one end of the second spring, and seals the connection between the oil outlet pipe sleeve and the lower branch pipe of the oil inlet pipe under the action of the second spring.

2. The oil damper cylinder grease gun device according to claim 1, characterized in that: The handle comprises a handle body and a handle fork arm, one end of the handle fork arm is rotatably connected to the connecting rod through a pin, and the other end is fixedly connected to the handle body; the piston rod is rotatably fixed to the handle fork arm through a pin.

3. The oil damper cylinder grease gun device according to claim 1, characterized in that: The flow guiding element is a one-way valve, and the one-way valve is arranged in the oil inlet branch pipe and the oil outlet branch pipe.

4. The oil damper cylinder grease gun device according to claim 1, characterized in that: The first sealing ball and the second sealing ball are both made of elastic material.

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