A guide plate for a chain saw

Abstract

The utility model discloses a chain saw guide plate, including inner guide plate and the outer guide plate of setting up on two sides of inner guide plate, the two side edges of inner guide plate are enclosed with outer guide plate and form the track groove of accommodating chain, the tail end of outer guide plate is provided with the oil hole of communicating track groove, and the side of inner guide plate corresponding oil hole is equipped with the lug close to the tail end of inner guide plate.

Description

Technical Field

[0001] This utility model relates to the field of chainsaws, and in particular to a chainsaw guide plate. Background Technology

[0002] The chainsaw guide plate is mounted on the chainsaw base to support the chain movement. When the chainsaw is working, the motor on the chainsaw base drives the chain to move in the guide plate groove. The blades on the chain cut the tree, and at the same time, they will drive the wood chips out from the cut. The chain needs lubricating oil to move in the guide plate groove. The pump body in the chainsaw base pumps lubricating oil into the groove through the oil hole to lubricate the chain. The wood chips moving with the chain can easily block the oil hole, affecting the flow of lubricating oil, resulting in the chain not being effectively lubricated, which can easily damage the chain and the guide plate. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a chainsaw guide plate that effectively blocks sawdust and prevents it from clogging the oil holes.

[0004] The technical solution of this utility model is as follows:

[0005] A chainsaw guide plate includes an inner guide plate and an outer guide plate that is attached to both sides of the inner guide plate. The two sides of the inner guide plate and the outer guide plate enclose each other to form a rail groove for accommodating the chain. An oil hole communicating with the rail groove is opened at the tail end of the outer guide plate. A protrusion is provided on the side of the inner guide plate corresponding to the oil hole near the tail end of the inner guide plate.

[0006] In a further technical solution, each of the two outer guide plates is provided with an oil hole, and the oil holes are respectively connected to the two side rail grooves.

[0007] In a further technical solution, the cross-section of the bump is an arc-shaped protrusion.

[0008] In a further technical solution, the side of the protrusion facing the inner guide plate is provided with a movable block integrally formed with the protrusion, the inner guide plate is provided with a movable groove matching the movable block, and the outer guide plate is provided with a fine-tuning structure that adjusts the movable block up and down along the movable groove.

[0009] In a further technical solution, the fine-tuning structure includes a waist-shaped hole, a through hole, a screw, and a nut. The waist-shaped hole is located on the outer guide plate and communicates with the movable slot. The screw passes through the waist-shaped hole and the through hole and is connected to the nut.

[0010] The beneficial effects of this utility model are:

[0011] 1. Based on the existing chainsaw guide plate, a protrusion is set near the oil hole of the inner guide plate. The protrusion can block most of the wood chips that move with the chain, prevent the oil hole from being blocked by wood chips, ensure the normal lubrication of the chain, and avoid damage to the chain and guide plate.

[0012] 2. The height of the bump can be adjusted and its position locked according to the specific tension of the chain, ensuring the bump's blocking effect on wood chips. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the chainsaw guide plate described in an embodiment of the present invention;

[0014] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0015] Figure 3 This is a cross-sectional schematic diagram of the oil hole in the chainsaw guide plate according to an embodiment of the present invention;

[0016] Figure 4 This is a cross-sectional schematic diagram of the fine-tuning structure of the chainsaw guide plate described in this embodiment of the utility model.

[0017] Explanation of reference numerals in the attached figures:

[0018] 10. Inner guide plate; 11. Protrusion; 12. Movable block; 20. Outer guide plate; 21. Oil hole; 31. Waist-shaped hole; 32. Through hole; 33. Screw; 34. Nut. Detailed Implementation

[0019] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0020] Example:

[0021] like Figures 1-3 As shown, a chainsaw guide plate includes an inner guide plate 10 and outer guide plates 20 that are attached to both sides of the inner guide plate 10. The two sides of the inner guide plate 10 and the outer guide plates 20 enclose each other to form a rail groove for accommodating the chain. Each of the two outer guide plates 20 has an oil hole 21 at its tail end that connects to the rail groove. The two oil holes 21 are respectively connected to the rail grooves on both sides, so that the entire chainsaw guide plate can be flipped over for use. No matter how it is flipped, it can be normally installed on the chainsaw base so that one of the oil holes 21 is connected to the pump body. A protrusion 11 is provided on the side of the inner guide plate 10 corresponding to the oil hole 21 near the tail end of the inner guide plate 10. The tail ends of the outer guide plates 20 and the inner guide plates 10 are both ends that are connected to the chainsaw base.

[0022] The working principle of the above technical solution is as follows:

[0023] After the chainsaw guide plate is installed on the chainsaw base, only one of the oil holes 21 is connected to the oil outlet of the pump body in the chainsaw base. The chain on the side where the oil hole 21 is located moves from the tail end to the head end along the inner guide plate 10. The wood chips carried on the chain are blocked by the protrusion 11 to prevent the oil hole 21 from being blocked by wood chips, ensuring normal lubrication of the chain and avoiding damage to the chain and guide plate.

[0024] In another embodiment, to prevent the chain from jamming when it comes into contact with the protrusion 11, the protrusion 11 is provided with an arc-shaped protrusion in cross section.

[0025] In another embodiment, such as Figure 1-4 As shown, the side of the protrusion 11 facing the inner guide plate 10 is provided with a movable block 12 integrally formed with the protrusion 11. The inner guide plate 10 is provided with a movable groove matching the movable block 12. The movable groove is connected to the rail groove on the corresponding side of the inner guide plate 10. The outer guide plate 20 is provided with a fine-tuning structure for adjusting the movable block 12 up and down along the movable groove. The fine-tuning structure includes a waist-shaped hole 31, a through hole 32, a screw 33 and a nut 34. The through hole 32 is on the movable block 12, and the waist-shaped hole 31 is provided on the outer guide plate 20. The length direction of the waist-shaped hole 31 is consistent with the adjustment direction of the movable block 12. The waist-shaped hole 31 is connected to the movable groove. The screw 33 passes through the waist-shaped hole 31 and the through hole 32 and is connected to the nut 34.

[0026] The height of the protrusion 11 can be adjusted and its position locked according to the specific tension of the chain by the fine-tuning structure, so as to ensure the blocking effect of the protrusion 11 on the sawdust. When adjusting, loosen the nut 34 and move the screw 33 along the waist-shaped hole 31 to drive the movable block 12 to move along the movable groove for adjustment. After adjustment, tighten the nut 34 again to lock the position of the movable block 12 and the protrusion 11.

[0027] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A chainsaw guide plate, characterized in that, It includes an inner guide plate and an outer guide plate that is attached to both sides of the inner guide plate. The two sides of the inner guide plate and the outer guide plate surround each other to form a rail groove for accommodating the chain. The tail end of the outer guide plate is provided with an oil hole that communicates with the rail groove. The inner guide plate is provided with a protrusion on the side of the inner guide plate corresponding to the oil hole near the tail end of the inner guide plate.

2. The chainsaw guide plate according to claim 1, characterized in that, Each of the two outer guide plates has an oil hole, which is connected to the rail grooves on both sides.

3. The chainsaw guide plate according to claim 1, characterized in that, The protrusion has a circular arc-shaped cross-section.

4. The chainsaw guide plate according to claim 3, characterized in that, The side of the protrusion facing the inner guide plate is provided with a movable block integrally formed with the protrusion. The inner guide plate is provided with a movable groove that matches the movable block. The outer guide plate is provided with a fine-tuning structure that adjusts the movable block up and down along the movable groove.

5. The chainsaw guide plate according to claim 4, characterized in that, The fine-tuning structure includes an oblong hole, a through hole, a screw, and a nut. The oblong hole is located on the outer guide plate and communicates with the movable slot. The screw passes through the oblong hole and the through hole and is connected to the nut.

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