Lubricating system of lithium battery mini chain saw

Abstract

The utility model provides a lubricating system of a lithium battery mini chain saw, which comprises a shell of the chain saw, a guide plate arranged on one side of the shell, an oil tank arranged on the other side of the shell, a chain arranged on the periphery of the guide plate and a guide groove used for installing the chain, a protective plate arranged at one end of the shell close to the oil tank and used for protecting the guide plate and the chain, and an oil outlet arranged on the oil tank. An oil conveying channel is arranged between the oil tank and the guide groove of the guide plate, a blocking block capable of separating from or blocking the oil outlet is arranged in the oil tank, a first spring and a second spring which drive and press the blocking block to keep the blocking state are arranged at the two ends of the blocking block, the first spring is connected with the oil tank, and the second spring is connected with the shell. A push rod capable of pushing the plug block to be separated from the oil outlet is arranged between the first spring or the second spring and the plug block, a transmission rod for rotating the protection plate to drive the push rod is arranged between the protection plate and the push rod, and a reset spring enabling the protection plate to reset is arranged between the shell and the protection plate. The device is small in occupied space and convenient to operate, and the use amount can be manually controlled.

Description

Technical Field

[0001] The utility model relates to the field of lithium-electric garden tools, in particular to a lubrication system for a lithium-electric mini chain saw. Background Art

[0002] Chain saw is a commonly used power tool, which uses a motor to drive the chain to cut wood. Fruit trees in orchards and trees in communities have thin branches, and using traditional chainsaws to prune them is a bit like "cutting chickens with a sledgehammer". Therefore, a lithium-powered mini chainsaw is designed for this type of usage scenario. However, due to its compact structure and the lack of a lubrication system, the chain and guide plate cannot be lubricated during use, greatly reducing its service life.

[0003] Some existing chain saw lubrication systems use electric gears to drive automatic oil pumps, which have complex structures and occupy large spaces. They are not suitable for smaller lithium-powered mini chain saws. Moreover, the automatic oil pumping system keeps pumping oil when the machine is turned on, and the amount of oil pumped is large, which easily causes waste. Summary of the invention

[0004] In order to solve the above problems of the prior art, the utility model provides a lubrication system for a lithium-electric mini chain saw, which has a simple structure, a small size, is manually operated, and can control the oil output.

[0005] The technical solutions adopted are as follows:

[0006] A lubrication system for a lithium-ion mini chain saw comprises a housing of the chain saw, wherein a guide plate is provided on one side of the housing and an oil tank is provided on the other side, a chain and a guide groove for installing the chain are provided on the outer periphery of the guide plate, a protective plate for protecting the guide plate and the chain is also provided on the housing near one end of the oil tank, an oil outlet is provided on the oil tank, an oil delivery channel is provided between the oil tank and the guide groove of the guide plate, a block capable of detaching from or blocking the oil outlet is provided in the oil tank, a driving mechanism capable of driving the block to detach from or block the oil outlet is also provided, and a transmission rod capable of rotating the protective plate to drive the block to move, and a reset spring for resetting the protective plate are provided.

[0007] Furthermore, the driving mechanism includes a first spring and a second spring arranged at both ends of the block to drive the block to maintain a blocked state, the first spring is connected to the oil tank, the second spring is connected to the housing, and a push rod is provided between the first spring or the second spring and the block to push the block away from the oil outlet.

[0008] Furthermore, the blocking block may be a steel ball that matches the size of the oil outlet.

[0009] Furthermore, the oil delivery channel includes an oil delivery groove arranged on the shell corresponding to the oil outlet and an oil outlet hole arranged on the guide plate and communicating with the guide groove. An oil outlet sealing plug is arranged in the oil delivery groove, and a small hole is arranged on the oil delivery groove corresponding to the oil outlet hole.

[0010] Furthermore, both ends of the push rod are provided with protrusions, the protrusion at one end contacts the blocking block, and the protrusion at the other end penetrates into the first spring or the second spring. The push rod is also provided with an extension arm extending outwardly and connected to the transmission rod.

[0011] Furthermore, the transmission rod is arranged between the protective plate and the push rod, and the transmission rod is provided with a paddle plate that cooperates with the extension arm and can swing to push the push rod, and is also provided with a card slot that cooperates with and is connected to the extension arm.

[0012] Furthermore, the oil tank is provided with an oil outlet cylinder, the oil outlet is provided on the oil outlet cylinder, the push rod is provided between the blocking block and the second spring, the first spring and the blocking block outer cover are provided with a clamping sleeve, and the clamping sleeve is provided in the oil outlet cylinder in the oil tank.

[0013] Furthermore, a sealing ring is provided between the ferrule and the protrusion provided on the push rod, and a through hole corresponding to the oil outlet is provided on the ferrule.

[0014] Furthermore, one end of the transmission rod is rotatably connected to the shell and is connected to the protective plate through the shell.

[0015] The protection plate is provided with a sliding block, and the shell is provided with a sliding groove which matches with the sliding block and allows the protection plate to rotate.

[0016] Compared with the prior art, the beneficial effects produced by the utility model are:

[0017] The utility model provides a lubrication system for a lithium-ion mini chain saw, including a guide plate and a casing of the chain saw. The guide plate is provided with a guide groove for installing a chain, and the chain can continuously move in the guide groove. The oil tank is provided on one side of the casing, and the guide plate is provided on the other side of the casing. The oil tank is provided with an oil outlet, and the casing is provided with a corresponding oil delivery channel, so that the lubricating oil in the oil tank can be guided into the guide groove to lubricate the entire chain. The oil outlet is provided with a movable block and a driving mechanism for driving the block to move. A transmission rod is provided between the driving mechanism and the protective plate, and the protective plate drives the transmission rod to move after rotation. The transmission rod drives the block to close or disengage from the oil outlet through the driving mechanism, thereby controlling the oil outlet. The protective plate is manually operated to control the oil outlet, which is very convenient and prevents waste. The driving mechanism is simple and occupies little space. The existing oil pipeline is replaced by an oil delivery channel, which saves space and delivers oil quickly. It is suitable for the internal space of a mini chain saw. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a disassembly diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the protective plate of the utility model in the working state;

[0020] Figure 3 It is a schematic diagram of the position of the block in the working state of the utility model;

[0021] Figure 4 This is a schematic diagram of the protective plate of the utility model in a non-working state;

[0022] Figure 5 This is a schematic diagram of the position of the block in the non-working state of the utility model;

[0023] Figure 6 It is a partial structural schematic diagram of the utility model;

[0024] Figure 7 This is a disassembly diagram of the utility model from another angle;

[0025] Figure 8 This is a schematic diagram of the protective plate and guide plate structure of the utility model;

[0026] Fig. 9 for Figure 8 Enlarged view of point a;

[0027] Among them, the housing 1, the guide plate 2, the guide groove 3, the oil tank 4, the oil outlet 401, the protective plate 5, the block 6, the first spring 7, the second spring 8, the push rod 9, the protrusion 901, the extension arm 902, the transmission rod 10, the paddle plate 1001, the slot 1002, the return spring 11, the oil delivery channel 12, the oil delivery groove 1201, the oil outlet hole 1202, the oil outlet sealing plug 1203, the sleeve 13, the slider 14, the slide groove 15, the oil outlet cylinder 16, the sealing ring 17, the driving mechanism 18, and the chain 19. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with specific embodiments.

[0029] In the description of the present invention, it should be understood that the terms "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and should not be understood as limitations on the present invention.

[0030] refer to Figure 1-9A lubrication system for a lithium-ion mini chain saw, comprising a housing 1 of a chain saw, wherein a guide plate 2 is provided on one side of the housing 1, and an oil tank 4 is provided on the other side. A chain 19 and a guide groove 3 for installing the chain are provided on the outer periphery of the guide plate. A protective plate 5 for protecting the guide plate and the chain is provided on one end of the housing 1 near the oil tank. An oil outlet 401 is provided on the oil tank 4. An oil delivery channel 12 is provided between the oil tank and the guide groove 3 of the guide plate. A driving mechanism 18 is also provided for driving a block to disengage from or block the oil outlet. The driving mechanism and the protective plate 5 are provided with a transmission rod 10 that can rotate the protective plate to drive the block to move, and a reset spring 11 that resets the protective plate. The driving mechanism 18 includes a first spring 7 and a second spring 8 that are provided at both ends of the block 6 to drive the block to maintain a blocked state. The first spring 7 is connected to the oil tank, and the second spring 8 is connected to the housing 1. A push rod 9 that can push the block 6 to disengage from the oil outlet is provided between the first spring or the second spring and the block 6.

[0031] The chain and the guide plate as the cutting components can adopt the existing technology.

[0032] The housing 1 is a partial housing of the chain saw, and the housing 1 is used to install the oil tank 4 and connect the oil tank and the guide plate.

[0033] The oil tank 4 is used to store oil. The oil in the oil tank can flow out from the oil outlet 401 and flow into the guide groove 3 through the oil delivery channel 12 to lubricate the entire chain. The oil delivery channel 12 includes an oil delivery groove 1201 corresponding to the oil outlet provided on the housing and an oil outlet hole 1202 provided on the guide plate and communicating with the guide groove. An oil outlet sealing plug 1203 is provided in the oil delivery groove, and a small hole is provided on the oil delivery groove corresponding to the oil outlet hole. After the lubricating oil flows out from the oil outlet 401 of the oil tank 4, it enters the oil delivery groove 1201 and then flows into the guide groove through the oil outlet hole 1202. The oil outlet sealing plug 1203 is provided to prevent the lubricating oil from leaking. The oil outlet sealing plug 1203 is sleeved on the outside of the oil outlet.

[0034] In the prior art, a relatively long oil delivery pipe is usually provided to spray the lubricating oil in the oil tank to the guide plate through the oil nozzle to lubricate the chain. The oil delivery pipe is provided in the housing, which takes up space and is not suitable for lithium-powered mini chain saws of smaller size. The utility model directly provides an oil delivery channel on the housing, and an oil outlet hole 1203 on the guide groove 3. The lubricating oil directly flows from the oil tank 4 into the guide groove through the oil delivery channel, which not only shortens the oil delivery time, but also saves the oil delivery pipe, has a simple structure, and occupies little space.

[0035] Preferably, the push rod 9 is arranged between the second spring 8 and the block 6, and protrusions 901 are arranged at both ends of the push rod 9, the protrusion at one end contacts the block 6, and the protrusion at the other end penetrates into the second spring, and the push rod is also provided with an extension arm 902 extending outward and connected to the transmission rod 10. The transmission rod 10 is provided with a paddle plate 1001 that cooperates with the extension arm 902 and swings to push the push rod, and is also provided with a slot 1002 that cooperates with and is connected to the extension arm 902. The extension arm 902 is inserted into the slot 1002 for connecting to the transmission rod 10.

[0036] by Figure 2-4 For example, when the transmission rod 10 swings to the right, the paddle plate 1001 will push the push rod 9 to move to the right. Figure 8 For example, the paddle plate 1001 is arranged on the left side of the push rod 9, and can push the push rod 9 to the right. The first spring 7 is in a compressed state. When the push rod 9 moves to the right, the first spring 7 drives the block 6 to move to the right and disengage from the oil outlet 401. At this time, the oil outlet 401 is not blocked, and oil can flow outward and flow into the guide groove 3 through the oil delivery channel 12. Since the chain can be driven to move continuously in the guide groove 3, the lubricating oil can flow through the entire chain through the continuous movement of the chain. At this time, the second spring 8 is in a compressed state, which helps the push rod 9 to reset when the transmission rod 10 resets.

[0037] Preferably, the blocking block 6 can be a steel ball that matches the size of the oil outlet 401. The steel ball can better match the oil outlet and better block the oil outlet to prevent the lubricating oil from flowing out when lubrication is not needed.

[0038] The oil tank 4 is provided with an oil outlet cylinder 16, and the oil outlet 401 is provided on the oil outlet cylinder 16. The outer cover of the first spring 7 and the blocking block 6 is provided with a ferrule 13, and the ferrule 13 is provided in the oil outlet cylinder in the oil tank. A sealing ring 17 is provided between the ferrule 13 and the protrusion provided on the push rod, and a through hole corresponding to the oil outlet is provided on the ferrule 13. Lubricating oil flows out of the oil tank into the oil outlet cylinder 16, passes through the through hole on the ferrule 13, and flows into the oil outlet. The sealing ring 17 can prevent the lubricating oil from leaking from the oil outlet cylinder 16.

[0039] One end of the transmission rod 10 is rotatably connected to the housing, and is connected to the protective plate 5 through the housing. When the protective plate 5 rotates, it can drive the transmission rod 10 to rotate, thereby pushing the push rod to move. Figure 4 , 5 , the protective plate 5 is in the original state, and the block 6 blocks the oil outlet to prevent oil from flowing out; Figure 2 , 3 , manually move the protective plate 5, the transmission rod 10 drives the push rod to move to the right, so that the block 6 is separated from the oil outlet, and the oil outlet lubricates the chain.

[0040] The protective plate 5 is provided with a slider 14, and the housing is provided with a slide groove 15 that cooperates with the slider and allows the protective plate to rotate. The slide groove 15 is arc-shaped, and when the protective plate 5 rotates, the slider 14 slides in the slide groove. A reset spring is provided between the protective plate 5 and the housing, and the reset spring is a torsion spring, and the protective plate 5 is reset under the drive of the torsion spring.

[0041] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A lubrication system for a lithium battery mini chain saw, comprising a housing (1) of the chain saw, wherein a guide plate (2) is provided on one side of the housing (1) and an oil tank (4) is provided on the other side, a chain (19) and a guide groove (3) for installing the chain are provided on the outer periphery of the guide plate, and a protective plate (5) for protecting the guide plate and the chain is also provided on one end of the housing (1) near the oil tank, wherein: The oil tank (4) is provided with an oil outlet (401), an oil delivery channel (12) is provided between the oil tank and the guide groove (3) of the guide plate, a block (6) capable of detaching from or blocking the oil outlet is provided in the oil tank (4), and a driving mechanism (18) capable of driving the block to detach from or block the oil outlet is also provided, and a transmission rod (10) capable of rotating the protective plate to drive the block to move, and a reset spring (11) capable of resetting the protective plate are provided between the driving mechanism and the protective plate (5).

2. The lubrication system for a lithium-ion mini chain saw according to claim 1, characterized in that: The driving mechanism (18) comprises a first spring (7) and a second spring (8) which are arranged at both ends of the blocking block (6) to drive the blocking block to maintain a blocked state, the first spring (7) is connected to the oil tank, the second spring (8) is connected to the housing (1), and a push rod (9) which can push the blocking block (6) away from the oil outlet is arranged between the first spring or the second spring and the blocking block (6).

3. The lubrication system for a lithium-ion mini chain saw according to claim 1, characterized in that: The blocking block (6) may be a steel ball having a size matching that of the oil outlet (401).

4. The lubrication system for a lithium-ion mini chain saw according to claim 1, characterized in that: The oil delivery channel (12) comprises an oil delivery groove (1201) provided on the housing and corresponding to the oil outlet, and an oil outlet hole (1202) provided on the guide plate and communicating with the guide groove. An oil outlet sealing plug (1203) is provided in the oil delivery groove, and a small hole is provided on the oil delivery groove and corresponds to the oil outlet hole.

5. The lubrication system for a lithium-ion mini chain saw as claimed in claim 2, characterized in that: The push rod (9) is provided with protrusions (901) at both ends, the protrusion at one end contacts the blocking block (6), and the protrusion at the other end penetrates into the first spring or the second spring. The push rod is also provided with an extension arm (902) extending outwardly and connected to the transmission rod (10).

6. The lubrication system for a lithium-ion mini chain saw as claimed in claim 2, characterized in that: The transmission rod (10) is arranged between the protective plate (5) and the push rod (9), and the transmission rod (10) is provided with a paddle plate (1001) that cooperates with the extension arm (902) and can swing to push the push rod, and is also provided with a clamping groove (1002) that cooperates with and is connected to the extension arm (902).

7. The lubrication system for a lithium-ion mini chain saw as claimed in claim 2, characterized in that: The oil tank (4) is provided with an oil outlet cylinder (16), the oil outlet (401) is provided on the oil outlet cylinder (16), the push rod is provided between the blocking block and the second spring, the outer cover of the first spring (7) and the blocking block (6) is provided with a clamping sleeve (13), and the clamping sleeve (13) is provided in the oil outlet cylinder in the oil tank.

8. The lubrication system for a lithium-ion mini chain saw as claimed in claim 7, characterized in that: A sealing ring (17) is provided between the ferrule (13) and the protrusion provided on the push rod, and a through hole corresponding to the oil outlet is provided on the ferrule (13).

9. The lubrication system for a lithium-ion mini chain saw according to claim 1, characterized in that: One end of the transmission rod is rotatably connected to the housing and is connected to the protective plate (5) through the housing.

10. The lubrication system for a lithium-ion mini chain saw according to claim 1, characterized in that: The protective plate (5) is provided with a sliding block (14), and the housing is provided with a sliding groove (15) which cooperates with the sliding block and allows the protective plate to rotate.

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