CN211925359U - An anti-dropping structure of an electric chain saw oil pipe - Google Patents

Abstract

The utility model discloses an anti-dropping structure for an oil pipe of an electric chain saw, which comprises an oil pump main body, a positioning inner pipe and a positioning outer pipe. so that the end hole of the positioning inner tube is communicated with the oil passage hole, the positioning inner tube is located in the middle of the positioning outer tube, and the end wall of the positioning outer tube is fixed on the outer wall of the oil pump main body, the outer wall of the positioning inner tube and the positioning outer tube are There is a gap between the inner walls of the oil pump body, and the outer wall of the oil pump main body, the outer wall of the positioning inner pipe and the inner wall of the positioning outer pipe are surrounded to form a positioning groove. With the aging of the tubing, the volume of the tubing gradually expands, and the inner wall of the positioning outer tube can fully restrict the outer wall of the tubing, thereby increasing the holding force of the outer wall of the positioning inner tube and the inner wall of the positioning outer tube to the side wall of the tubing, ensuring that The oil pipe will not fall off, which ensures the long-term stability of the connection strength between the oil pipe and the main body of the oil pump.

Description

An anti-dropping structure of an electric chain saw oil pipe

【Technical field】

The utility model relates to an anti-dropping structure of an electric chain saw oil pipe, which belongs to the field of oil pipes of an electric chain saw.

【Background technique】

Usually, the chain saw is equipped with a lubrication system, the lubricating oil can lubricate the chain, reduce the friction and heat generation of the chain, and the lubricating oil can also take away part of the heat on the chain saw. Existing chainsaw lubrication systems are usually connected by hoses. To ensure the sealing effect, the hoses and related materials are tightly connected. The inner wall of the hose There is no limit. Over time, the hose will expand, age and deform. In this state, the hose will easily fall off, causing waste and pollution to the environment.

【Content of utility model】

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an oil pipe anti-dropping structure of an electric chain saw with more stable oil pipe connection strength.

To solve the above-mentioned technical problems, the utility model adopts the following technical solutions:

An anti-dropping structure of an electric chain saw oil pipe comprises an oil pump main body, a positioning inner pipe and a positioning outer pipe. An oil passage hole is opened on the outer wall of the oil pump main body, and the end wall of the positioning inner pipe is fixed on the outer wall of the oil pump main body, so that the positioning The end hole of the inner pipe is communicated with the oil passage hole, the positioning inner pipe is located in the middle of the positioning outer pipe, and the end wall of the positioning outer pipe is fixed on the outer wall of the oil pump main body, and there is a gap between the outer wall of the positioning inner pipe and the inner wall of the positioning outer pipe. There is a gap, and the outer wall of the main body of the oil pump, the outer wall of the positioning inner pipe and the inner wall of the positioning outer pipe are surrounded to form a positioning groove.

The beneficial effects of the present utility model are:

After the oil pipe is inserted into the positioning groove, the end hole of the positioning inner pipe ensures the communication between the oil pipe and the oil passage hole. The outer wall of the positioning inner pipe is matched with the inner wall of the positioning outer pipe, and the side wall of the oil pipe is pressed and positioned from the inner and outer directions of the oil pipe, so as to ensure the tightness between the oil pipe and the oil passage. In addition, with the aging of the oil pipe, the volume of the oil pipe gradually expands, and the inner wall of the positioning outer pipe can fully restrict the outer wall of the oil pipe, thereby increasing the holding force of the outer wall of the positioning inner pipe and the inner wall of the positioning outer pipe to the side wall of the oil pipe. Ensure that the oil pipe will not fall off, and ensure the long-term stability of the connection strength between the oil pipe and the main body of the oil pump.

The end of the oil pipe of the utility model is inserted into the positioning groove, the outer wall of the oil pipe is pressed against the inner wall of the positioning outer pipe, and the inner wall of the oil pipe is pressed against the outer wall of the positioning inner pipe.

The end wall of the oil pipe of the utility model is pressed against the outer wall of the main body of the oil pump.

There are two oil passage holes in the utility model, and the two oil passage ports are an oil inlet port and an oil outlet port respectively.

The anti-dropping structure of the electric chainsaw oil pipe of the utility model further comprises a turbine rod, one end of the turbine rod is located in the main body of the oil pump, the other end of the turbine rod is located outside the main body of the oil pump and is equipped with a transmission tooth, the transmission tooth and the output on the outer wall of the output shaft The teeth mesh, the end of the turbine rod located in the main body of the oil pump is concave to form an oil passage, one of the oil inlet and the oil outlet is communicated with the oil passage, and the other is sealed by the outer wall of the turbine rod.

The utility model is provided with a convex block on the outer wall of the middle part of the turbine rod, the convex block is located outside the main body of the oil pump, the convex block is provided with a piston groove axially inclined relative to the turbo rod, and the outer wall of the oil pump main body is provided with a push-pull buckle. The push-pull is located in the piston groove.

The main body of the oil pump of the utility model is also provided with a piston sleeve, the piston sleeve is provided with two through holes, the two through holes are respectively connected with the oil inlet and the oil outlet, and the turbine rod is rotatably arranged in the middle of the piston sleeve.

The outer wall of the oil pump body of the utility model is provided with a fixing column, a fixing hole is opened in the middle of the fixing column, a fixing shaft is arranged on the support plate, the fixing shaft is inserted in the fixing hole, and the output shaft penetrates the supporting plate.

Other features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings.

【Description of drawings】

The utility model will be further described below in conjunction with the accompanying drawings:

Fig. 1 is the three-dimensional structure schematic diagram of the anti-dropping structure of the electric chainsaw oil pipe according to the embodiment of the present invention;

Fig. 2 is the front sectional structure schematic diagram of the anti-dropping structure of the electric chainsaw oil pipe according to the embodiment of the present utility model;

Fig. 3 is the front sectional structural schematic diagram of the use state of the anti-dropping structure of the electric chainsaw oil pipe according to the embodiment of the present invention;

4 is a schematic three-dimensional structural diagram of the use state of the anti-dropping structure of the electric chainsaw oil pipe according to the embodiment of the present invention;

FIG. 5 is a schematic diagram of the explosion structure in the use state of the oil pipe anti-dropping structure of the electric chainsaw according to the embodiment of the present invention.

【Detailed ways】

The technical solutions of the embodiments of the present invention will be explained and described below in conjunction with the embodiments of the present invention and the accompanying drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the examples in the implementation manner, other examples obtained by those skilled in the art without creative work, all belong to the protection scope of the present invention.

In the following description, the appearance of terms such as "inner", "outer", "upper", "lower", "left", "right" etc. to indicate orientation or positional relationship is only for the convenience of describing the embodiment and simplifying the description, rather than Indicating or implying that the referred device or element must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention.

Example:

Referring to FIGS. 1-5 , this embodiment provides an anti-dropping structure for an electric chainsaw oil pipe, including an oil pump body 1 , a positioning inner pipe 2 and a positioning outer pipe 3 .

The outer wall of the oil pump main body 1 is provided with two oil passage holes, and the two oil passage ports are an oil inlet port 4 and an oil outlet port 5 respectively. The number of positioning inner tubes 2 and positioning outer tubes 3 is opposite to the number of oil passage holes. There are two positioning inner tubes 2 and positioning outer tubes 3 respectively, and one positioning inner tube 2 and one positioning outer tube 3 are arranged in the inlet. Oil port 4 , another positioning inner pipe 2 and another positioning outer pipe 3 are arranged at the oil outlet 5 .

The positioning inner tube 2 and the positioning outer tube 3 at the oil inlet 4 and the oil outlet 5 have the same structure, so the positioning inner tube 2 and the positioning outer tube 3 at the oil inlet 4 are used for description.

The end wall of the positioning inner pipe 2 is fixed on the outer wall of the oil pump main body 1 , so that the end hole of the positioning inner pipe 2 is communicated with the oil inlet 4 . The positioning inner tube 2 is located in the middle of the positioning outer tube 3 , and the end wall of the positioning outer tube 3 is fixed on the outer wall of the oil pump main body 1 . Generally speaking, the positioning inner tube 2 , the positioning outer tube 3 and the oil pump main body 1 are made by integral molding.

There is a gap between the outer wall of the positioning inner tube 2 and the inner wall of the positioning outer tube 3, so that the outer wall of the oil pump body 1, the outer wall of the positioning inner tube 2 and the inner wall of the positioning outer tube 3 are surrounded to form a positioning groove.

When the chain saw oil pipe anti-dropping structure is in use, the end of an oil pipe 6 is inserted into the positioning groove beside the oil inlet 4, and the oil pipe 6 is an oil inlet pipe correspondingly. The end of the other oil pipe 6 is inserted into the positioning groove beside the oil outlet 5, corresponding to the oil pipe 6 as the oil outlet pipe. The notch area of the positioning groove is large, and the bottom area of the groove is small, forming a structure with a large outside and small inside, so that the side wall of the oil pipe 6 can be easily inserted into the positioning groove.

After the oil pipe 6 is inserted into the positioning groove, the outer wall of the oil pipe 6 is pressed against the inner wall of the positioning outer pipe 3, the inner wall of the oil pipe 6 is pressed against the outer wall of the positioning inner pipe 2, and the end wall of the oil pipe 6 is pressed against the oil pump. On the outer wall of the main body 1, the side wall of the oil pipe 6 fills the entire positioning groove as much as possible through deformation, so as to ensure the tightness and connection strength of the connection position between the oil pipe 6 and the oil pump main body 1. After the oil inlet pipe is assembled in place, its end hole is communicated with the oil inlet port 4 , and after the oil outlet pipe is assembled in place, its end hole is communicated with the oil outlet port 5 .

The oil pipe 6 is gradually aged during use, and the volume of the side wall of the oil pipe 6 is gradually expanded. Due to the limiting effect of the inner wall of the positioning outer pipe 3, the inner wall of the oil pipe 6 will not be separated from the outer wall of the positioning inner pipe 2, but the outer wall of the positioning inner pipe 2 and the inner wall of the positioning outer pipe 3 are increased to hug the side wall of the oil pipe 6. The tightening force ensures that the oil pipe 6 will not be detached from the positioning groove, and ensures the long-term stability of the connection strength between the oil pipe 6 and the oil pump main body 1 .

The anti-dropping structure of the oil pipe of the electric chainsaw in this embodiment further includes a turbine rod 9 , one end of the turbine rod 9 is located in the oil pump main body 1 , the turbine rod 9 is rotatably arranged in the middle of the oil pump main body 1 , and the other end of the turbine rod 9 is located outside the oil pump main body 1 . A transmission tooth 10 is fixedly installed, and the transmission tooth 10 rotates to drive the turbine rod 9 to rotate in the middle of the main body 1 of the oil pump.

The transmission teeth 10 mesh with the output teeth 19 on the outer wall of the output shaft 18 , and the output shaft 18 rotates to drive the output teeth 19 to rotate, thereby transmitting the transmission teeth 10 and making the transmission teeth 10 rotate.

In order to adapt to the rotation process of the turbine rod 9 , the oil pump main body 1 is further provided with a piston sleeve 12 , and the piston sleeve 12 is fixed to the inner wall of the oil pump main body 1 . The piston sleeve 12 is provided with two through holes 13, the two through holes 13 are respectively connected with the oil inlet 4 and the oil outlet 5, the turbine rod 9 is rotatably arranged in the middle of the piston sleeve 12, and the outer wall of the turbine rod 9 is located in the through hole 13. When the through hole 13 is blocked, the turbine rod 9 blocks the two through holes 13 so that the two through holes 13 cannot be directly communicated. The end of the turbine rod 9 located in the main body 1 of the oil pump is concave to form an oil passage 20 . When the oil passage 20 is rotated to the through hole 13 , it communicates with the through hole 13 , so that the oil pipe 6 is communicated with the oil passage 20 .

When the oil inlet 4 communicates with the oil channel 20, the oil inlet pipe supplies oil to the oil channel 20. At this time, the oil outlet 5 is sealed with the inner side of the piston sleeve 12 through the outer wall of the turbine rod 9, and the oil pump body 1 does not supply oil into the oil outlet pipe. After the turbine rod 9 is rotated at a certain angle, the oil passage 20 is neither connected with the oil inlet 4 nor with the oil outlet 5, the two through holes 13 are sealed by the outer wall of the turbine rod 9, and the lubricating oil in the oil passage 20 is brought into the piston sleeve 12 . After the turbine rod 9 continues to rotate at a certain angle, the oil outlet 5 communicates with the oil passage 20, and the lubricating oil in the oil passage 20 is sent to the oil outlet pipe. Through the above method, a pressure difference is formed between the oil pipe 6 and the oil passage 20, thereby providing lubricating oil power.

In order to further improve the power of the lubricating oil, the outer wall of the middle part of the turbine rod 9 is provided with a bump 7, the bump 7 is located outside the oil pump body 1, the outer wall of the middle part of the turbine rod 9 is concave, and the bump 7 is clamped on the turbine rod 9 At the concave position in the middle, so that the projection 7 and the turbine rod 9 are fixed. The boss 7 is provided with a piston groove 8 which is axially inclined relative to the turbine rod 9 . The piston groove 8 is an annular groove. When the turbine rod 9 rotates, the push-pull buckle 11 will press on the side wall of the piston groove 8, so that the turbine rod 9 reciprocates along its own axis. Since the oil passage 20 has a certain size, the oil passage 20 can communicate with the oil inlet 4 or the oil outlet 5 even if the turbine rod 9 is rotated when the axial movement occurs.

A fixing column 14 is provided on the outer wall of the oil pump main body 1 , and a fixing hole 15 is opened in the middle of the fixing column 14 . The support plate 16 is provided with a fixed shaft 17. When the electric chainsaw oil pipe anti-dropping structure is used, the fixed shaft 17 is inserted into the fixed hole 15, thereby fixing the oil pump main body 1 and the support plate 16, and the output shaft 18 penetrates the support plate 16. The output shaft 18 is axially and radially positioned on the support plate 16 , and the output shaft 18 is rotatably provided on the support plate 16 .

The above are only specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Those skilled in the art should understand that the present utility model includes but is not limited to those described in the above specific embodiments. content. Any modifications that do not depart from the functional and structural principles of the present invention are intended to be included in the scope of the claims.

Claims (8)

1. An electric chainsaw oil pipe anti-dropping structure is characterized in that, comprising an oil pump main body, a positioning inner pipe and a positioning outer pipe, an oil passage hole is provided on the outer wall of the oil pump main body, and the end wall of the positioning inner pipe is fixed on the oil pump main body. on the outer wall, so that the end hole of the positioning inner tube is communicated with the oil passage hole, the positioning inner tube is located in the middle of the positioning outer tube, and the end wall of the positioning outer tube is fixed on the outer wall of the oil pump main body, the positioning inner tube The outer wall and the positioning outer A space is left between the inner walls of the pipes, and the outer wall of the oil pump main body, the outer wall of the positioning inner pipe and the inner wall of the positioning outer pipe are surrounded to form a positioning groove. 2 . The anti-dropping structure of the electric chainsaw oil pipe according to claim 1 , wherein the end of the oil pipe is inserted into the positioning groove, the outer wall of the oil pipe is squeezed on the inner wall of the positioning outer pipe, and the inner wall of the oil pipe is squeezed. 3 . On the outer wall of the positioning inner tube. 3 . The anti-dropping structure of the electric chainsaw oil pipe according to claim 1 , wherein the end wall of the oil pipe is pressed against the outer wall of the main body of the oil pump. 4 . 4 . The anti-dropping structure of the electric chainsaw oil pipe according to claim 1 , wherein the number of the oil passages is two, and the two oil passages are an oil inlet and an oil outlet respectively. 5 . 5 . The anti-dropping structure of the electric chainsaw oil pipe according to claim 4 , wherein the anti-dropping structure of the electric chainsaw oil pipe further comprises a turbo rod, one end of the turbo rod is located in the main body of the oil pump, and the other end of the turbo rod is located in the main body of the oil pump. 6 . The outside of the main body of the oil pump is equipped with transmission teeth, which mesh with the output teeth on the outer wall of the output shaft. A seal through the outer wall of the turbine rod. 6 . The anti-dropping structure of the electric chainsaw oil pipe according to claim 5 , wherein the outer wall of the middle part of the turbine rod is provided with a bump, the bump is located outside the main body of the oil pump, and the bump is provided with a relative turbine rod. 7 . The axially inclined piston groove is provided with a push-pull buckle on the outer wall of the main body of the oil pump, and the push-pull buckle is located in the piston groove. 7 . The anti-dropping structure of the electric chainsaw oil pipe according to claim 6 , wherein the oil pump body is further provided with a piston sleeve, and the piston sleeve is provided with two through holes, and the two through holes are respectively connected to the oil inlet. 8 . The port is communicated with the oil outlet, and the turbine rod is rotatably arranged in the middle of the piston sleeve. 8 . The anti-dropping structure of the electric chainsaw oil pipe according to claim 5 , wherein a fixing column is provided on the outer wall of the oil pump main body, a fixing hole is opened in the middle of the fixing column, and a fixing shaft is provided on the support plate, 9 . The fixed shaft is inserted into the fixed hole, and the output shaft penetrates through the support plate.

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