Oil pumping mechanism for electric saw or chain saw

Abstract

The invention provides an oil pumping structure for an electric saw or a chain saw, which comprises a shell of the electric saw or the chain saw, an oil pumping structure body and a lubricating oil way connected with the oil pumping structure body, the oil pumping mechanism body comprises a first pipeline, a second pipeline and an elastic compression pipe arranged between the first pipeline and the second pipeline, and a compression structure capable of compressing the elastic compression pipe to pump oil and a driving structure used for driving the compression structure to rotate are arranged at the matching position of the outer wall of the elastic compression pipe. And the compression structure is provided with at least one compression wheel which is matched with the elastic compression pipe and can extrude the elastic compression pipe, and a rotating frame or a rotating wheel for mounting the compression wheel. The device is simple in structure and small in occupied space.

Description

Technical Field

[0001] The invention relates to the technical field of electric saws or oil saws, in particular to an oil pump mechanism for electric saws or oil saws. Background Art

[0002] Existing electric saws or oil saws usually use standard oil pump bodies. The engine drives the pump body to pump oil through the crankshaft. The pump body includes a variety of parts such as the pump body, pump cover, pump shaft and pump plate. The structure is complex and large in size, which will increase the volume inside the oil saw housing, thereby affecting the overall volume of the electric saw or oil saw. The large volume of the oil pump body will occupy a larger position in the electric saw or oil saw housing or engine, affecting the layout of other parts. Summary of the invention

[0003] In order to solve the above problems of the prior art, the present invention provides an oil pump mechanism for an electric saw or a chain saw, which has a simple structure, occupies a small space, and is convenient for reasonable layout.

[0004] The technical solutions adopted are as follows:

[0005] An oil pump structure for an electric saw or an oil saw, comprising a housing of the electric saw or the oil saw, an oil pump structure body, and a lubricating oil circuit connected to the oil pump structure body, wherein the housing is provided with a cavity for mounting the oil pump structure body, the oil pump structure body comprises a first pipeline, a second pipeline, and an elastic compression tube disposed between the first pipeline and the second pipeline, a compression structure for pumping oil with a compressible elastic compression tube and a driving structure for driving the compression structure to rotate are disposed at a mating position of the outer wall of the elastic compression tube, the compression structure is provided with at least one compression wheel that cooperates with the elastic compression tube and can squeeze the elastic compression tube, and a rotating frame or rotating wheel for mounting the compression wheel.

[0006] Furthermore, the first pipeline is an oil inlet pipe connected to the oil tank, and the second pipeline is an oil outlet pipe connected to the lubricating oil circuit.

[0007] Furthermore, the rotating frame or rotating wheel is arranged on the driving shaft of the driving structure.

[0008] Furthermore, there are four compression wheels evenly distributed on the periphery of the rotating frame or the rotating wheel, and a mounting frame for mounting the compression wheels is provided on the periphery of the rotating frame or the rotating wheel.

[0009] Furthermore, the compression wheel is provided with a groove which cooperates with the elastic compression tube.

[0010] Furthermore, the elastic compression tube is annularly arranged on the outer periphery of the rotating frame or the rotating wheel and cooperates with the compression wheel.

[0011] Furthermore, the oil pump structure body can be used for an electric saw, the cavity of the electric saw is arranged near the outside of the shell, the elastic compression tube is directly arranged in the cavity of the electric saw shell, the shell near the outside end is provided with a cover plate covering the cavity, and the driving structure is installed near the inside end of the shell.

[0012] Furthermore, the oil pump structure body can be used for an oil saw, and a mounting shell for mounting an elastic compression tube is provided in the cavity of the oil saw, and an oil pump cover plate, a needle bearing, a sprocket, a passive plate, and a clutch are sequentially provided near the outer end of the shell.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention provides an oil pump structure for an electric saw or an oil saw, the oil pump structure includes a first pipeline and a second pipeline connected to an oil circuit. The first and second pipelines can be used as oil inlet pipes or oil outlet pipes and respectively connected to an oil tank connection or a lubricating oil circuit as required. An elastic compression tube is connected between the first and second pipelines, a compression structure is provided in the middle of the elastic compression tube, the compression structure includes a rotating frame or a rotating wheel driven to rotate by a driving structure, a compression wheel is provided on the outer wall of the rotating frame or the rotating wheel, and the elastic compression tube is provided on the outer periphery of the rotating frame or the rotating wheel. The rotating frame or the rotating wheel rotates to squeeze the elastic compression tube through the compression wheel, and combined with the elastic reset of the compression tube, the elastic compression tube is repeatedly compressed and elastically reset to creep, so that a continuous negative pressure is generated inside the compression tube, and the lubricating oil is sucked and transmitted to the lubricating oil circuit. The present invention has a simple structure, occupies a small space, does not affect the layout of other parts in the oil saw or the electric saw, can be provided at a location where lubrication is required, optimizes the structure of the entire oil saw or the electric saw, and enables the entire oil saw or the electric saw to be redesigned and reduced in size. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the oil pump structure installed in the chain saw;

[0016] Figure 2 This is a disassembly diagram of the oil pump structure installed in the chain saw;

[0017] Figure 3 It is a schematic diagram of the oil pump structure installed in the electric saw;

[0018] Figure 4 It is a schematic diagram of the structure of the oil pump structure in the electric saw;

[0019] Among them, the shell 1, the oil pump structure body 2, the oil inlet pipe 201, the oil outlet pipe 202, the elastic compression tube 203, the compression structure 4, the compression wheel 401, the rotating frame or rotating wheel 402, the mounting frame 403, the oil tank 5, the cavity 6, the drive shaft 7, the cover plate 8, the mounting shell 9, the needle bearing 10, the sprocket 11, the passive disk 12, and the clutch 13. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with specific embodiments.

[0021] refer to Figure 1-4 , an oil pump structure for an electric saw or an oil saw, comprising a housing 1 of the electric saw or the oil saw, an oil pump structure body 2, and a lubricating oil circuit connected to the oil pump structure body, the housing 1 being provided with a cavity 6 for mounting the oil pump structure body 2, the oil pump structure body 2 comprising a first pipeline, a second pipeline, an elastic compression tube 203 disposed between the first pipeline and the second pipeline, a compression structure 4 for compressing the elastic compression tube 203 to pump oil and a driving structure for driving the compression structure 4 to rotate, the compression structure 4 being provided with at least one compression wheel 401 that cooperates with the elastic compression tube 203 and can squeeze the elastic compression tube 203, and a rotating frame or rotating wheel 402 for mounting the compression wheel 401.

[0022] The first and second pipelines can be connected to the oil tank 5 or the lubricating oil circuit as needed. The first pipeline described in this embodiment is the oil inlet pipe 201 connected to the oil tank 5, which is used to absorb the lubricating oil in the oil tank, and the second pipeline is the oil outlet pipe 202 connected to the lubricating oil circuit. The oil outlet pipe 202 can allow the lubricating oil to flow into the lubricating oil circuit through the oil outlet nozzle to lubricate the position of the electric saw or chain saw that needs lubrication. The lubricating oil circuit can be set at the position that needs lubrication, such as the inside of the engine, the chain, etc.

[0023] The rotating frame or rotating wheel 402 is connected to the driving shaft 7 of the driving structure. The compression wheel 401 is arranged on the outer periphery of the rotating frame or rotating wheel 402, and the outer periphery of the rotating frame or rotating wheel 402 is provided with a mounting frame 403 for mounting the compression wheel 401. The driving structure can drive the rotating frame or rotating wheel 402 to rotate. When the rotating frame or rotating wheel 402 rotates, the compression wheel 401 will rotate accordingly. The compression wheel 401 cooperates with the outer wall of the elastic compression tube 203 to squeeze the elastic compression tube 203. The elastic compression tube 203 adopts a hose, which is convenient for the compression wheel 401 to squeeze and elastically reset, thereby forming a peristaltic action, which can continuously generate negative pressure to absorb oil from the oil tank. As the rotating frame or rotating wheel 402 rotates, the compression wheel 401 will intermittently and continuously compress the elastic compression tube 203, so that the oil in the elastic compression tube 203 is pumped out from the oil outlet 202. When the elastic compression tube is intermittently disengaged from the compression wheel 401 , the elastic reset generates negative pressure, and oil is sucked from the oil tank through the oil inlet pipe 201 .

[0024] The lubricating oil enters the elastic compression tube 203 from the oil tank 5 through the oil inlet pipe 201, and the compression wheel 401 rotates with the rotating frame or the rotating wheel 402, and continuously rotates to squeeze the elastic compression tube 203. The elastic compression tube 203 is arranged on the outer periphery of the rotating frame or the rotating wheel 402. The rotating frame or the rotating wheel 402 rotates to squeeze the elastic compression tube 203 for one circle, and the lubricating oil in the elastic compression tube 203 is pumped out from the second pipeline 202 through squeezing.

[0025] Preferably, four compression wheels 401 are provided. The more compression wheels 401 there are, the better the squeezing effect is and the higher the oil pumping efficiency is.

[0026] The compression wheel 401 is provided with a groove matched with the elastic compression tube. The groove is arranged to fit with the elastic compression tube 203, so that the compression wheel 401 rotates more smoothly.

[0027] The elastic compression tube is annularly arranged on the outer periphery of the rotating frame or rotating wheel 402 and cooperates with the compression wheel 401. This is a main structure of the present invention. The compression wheel and the elastic compression tube, the annular elastic compression tube occupies a small space. It is only necessary to ensure that the compression wheel can rotate and squeeze the elastic compression tube to make the elastic compression tube creep. The rotating frame or rotating wheel can be made as small as possible according to actual conditions. Therefore, the present invention has a simple structure, occupies a small volume, and will not affect the layout of other parts in the oil saw or electric saw.

[0028] like Figure 3 , 4 The oil pump structure body 2 can be used for an electric saw. The cavity 6 of the electric saw is arranged near the outside of the shell 1. The elastic compression tube 203 is directly arranged in the cavity 6 of the electric saw shell. The elastic compression tube 203 is arranged close to the inner wall of the cavity. The shell 1 is provided with a cover plate 8 covering the cavity at one end near the outside, and the rotating drive structure is installed at one end near the inside of the shell 1.

[0029] like Figure 1 , 2 The oil pump structure body 2 can be used for an oil saw. A mounting shell 9 for mounting an elastic compression tube 203 is provided in a cavity 6 of the oil saw. An oil pump cover plate 3, a needle bearing 10, a sprocket 11, a passive disk 12, and a clutch 13 are sequentially provided near the outer end of the shell.

[0030] The above descriptions are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. An oil pump structure for an electric saw or an oil saw, comprising a housing (1) of the electric saw or the oil saw, an oil pump structure body (2), and a lubricating oil path connected to the oil pump structure body, wherein the housing (1) is provided with a cavity (6) for mounting the oil pump structure body (2), and characterized in that: The oil pump mechanism body (2) comprises a first pipeline, a second pipeline, and an elastic compression tube (203) arranged between the first pipeline and the second pipeline. A compression structure (4) capable of compressing the elastic compression tube (203) to pump oil and a driving structure for driving the compression structure (4) to rotate are arranged at the outer wall of the elastic compression tube (203). The compression structure (4) is provided with at least one compression wheel (401) that cooperates with the elastic compression tube (203) and can squeeze the elastic compression tube (203), and a rotating frame or a rotating wheel (402) for mounting the compression wheel (401).

2. The oil pump structure for an electric saw or a chain saw according to claim 1, characterized in that: The first pipeline is an oil inlet pipe (201) connected to the oil tank (5), and the second pipeline is an oil outlet pipe (202) connected to the lubricating oil circuit.

3. The oil pump structure for an electric saw or a chain saw according to claim 1, characterized in that: The rotating frame or rotating wheel (402) is connected to the driving shaft (7) of the driving structure.

4. The oil pump structure for an electric saw or a chain saw according to claim 1 or 3, characterized in that: There are four compression wheels (401) evenly distributed on the periphery of the rotating frame or the rotating wheel (402), and a mounting frame (403) for mounting the compression wheels is provided on the periphery of the rotating frame or the rotating wheel (402).

5. The oil pump structure for an electric saw or a chain saw according to claim 1, characterized in that: The compression wheel (401) is provided with a groove which cooperates with the elastic compression tube.

6. The oil pump structure for an electric saw or a chain saw according to claim 1, characterized in that: The elastic compression tube is annularly arranged on the outer periphery of the rotating frame or the rotating wheel (402) and cooperates with the compression wheel (401).

7. The oil pump structure for an electric saw or a chain saw according to claim 1, characterized in that: The oil pump structure body (2) can be used for an electric saw. The cavity (6) of the electric saw is arranged near the outer side of the shell (1). The elastic compression tube (203) is arranged in the cavity (6) of the shell of the electric saw. A cover plate (8) covering the cavity is arranged near the outer end of the shell (1). The driving structure is installed near the inner end of the shell (1).

8. The oil pump structure for an electric saw or a chain saw according to claim 1, characterized in that: The oil pump structure body (2) can be used for an oil saw. A mounting shell (9) for mounting an elastic compression tube (203) is provided in a cavity (6) of the oil saw. An oil pump cover plate (3), a needle bearing (10), a sprocket (11), a passive disc (12), and a clutch (13) are sequentially provided near an outer end of the shell.

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