Automatic oil supply type chain saw

Abstract

The utility model discloses an automatic oil supply type chain saw which comprises a shell, a middle rotating shaft is connected to the shell in a rotating mode, a transmission disc is connected to the middle rotating shaft, the transmission disc is connected with a rotating output assembly, a worm end is arranged on the middle rotating shaft, the worm end is connected with an oil pump unit, and the oil pump unit is connected with an oil pump. And a turbine end meshed with the worm end is arranged on the oil pump unit. According to the automatic oil supply type chain saw, the oil pump unit can be integrated on the hand saw, the oil pump unit can be indirectly and automatically driven to work through an existing driving device, an independent oil pump unit driving device does not need to be provided, and therefore automatic oil supply of the device is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of chain saws, in particular to an automatic oil supply chain saw. Background Art

[0002] With the continuous development and popularization of tools, easy-to-use electric hand saws have gradually entered daily life. Compared with traditional electric saws, the advantages of hand saws are high degree of integration, small size, and portability.

[0003] For example, publication number "CN218799569U" discloses a "single-hand saw with a movable baffle," comprising a single-hand saw housing, a motor, a protective baffle, a gear transmission assembly, a chain, and a main control panel. The single-hand saw housing includes a drive unit and a handheld portion. The motor and gear transmission assembly are disposed within the drive unit. A guide plate is disposed at the end of the drive unit away from the handheld portion. The chain slides over the guide plate. The chain and motor form a transmission mechanism via a gear set. The main control panel is disposed within the handheld portion. The motor and main control panel are electrically connected. A protective baffle is movably disposed at the end of the single-hand saw housing near the guide plate. A torsion spring is provided at the connection between the protective baffle and the single-hand saw housing. However, in actual use, due to the compact structure of the hand saw, a separate oil supply and lubrication device cannot be provided, and manual lubrication is often used during use. Summary of the Invention

[0004] In response to the problem that the existing technology mentioned in the background technology cannot automatically supply oil, the utility model provides an automatic oil supply chain saw, which can integrate the oil pump unit into the hand saw and can indirectly and automatically drive the oil pump unit through the existing drive device, without providing a separate oil pump unit drive device, thereby realizing automatic oil supply of the device.

[0005] In order to achieve the above-mentioned purpose, the present utility model adopts the following technical solutions.

[0006] An automatic oil supply chain saw includes a housing, an intermediate shaft rotatably connected to the housing, a transmission disc connected to the intermediate shaft, a rotation output assembly connected to the transmission disc, a worm end provided on the intermediate shaft, an oil pump unit connected to the oil pump unit, and a worm wheel end meshing with the worm end provided on the oil pump unit. In the present application, the housing is provided with an intermediate shaft, wherein the intermediate shaft can rotate relative to the housing, a transmission disc provided on the intermediate shaft, the transmission disc is connected to the rotation output assembly, the rotation output assembly can output torque, which is converted into a rotational movement of the intermediate shaft through the transmission disc, wherein the rotation of the intermediate shaft can drive the chain to rotate, thereby completing the output of the hand saw. Furthermore, in the present application, the intermediate shaft is provided with a worm end, wherein the worm end is provided with helical teeth, and accordingly, the worm end is connected to the oil pump unit, and the oil pump unit is provided with a worm wheel end, and the rotation of the worm wheel end can drive the oil pump unit to work, and the worm wheel end meshes with the worm end. When the rotation After the dynamic output component drives the transmission disk to rotate, the transmission disk synchronously drives the intermediate rotating shaft to rotate, and the intermediate rotating shaft can drive the worm end thereon to rotate. Since the worm wheel end is engaged with the worm end, the worm end rotates synchronously. Therefore, the oil pump unit can work synchronously through the output of the rotating output component to realize automatic oil supply. The oil supply of the oil pump unit in this application is connected to the working transmission component of the hand saw in this application, which can not only realize synchronous oil supply, but also avoid the need to set up a separate oil supply drive device, thereby ensuring the compactness of the structure to the greatest extent. Through the synchronous drive of the intermediate rotating shaft, the oil supply and on-off of the oil pump can be adaptively controlled to improve adaptability and flexibility.

[0007] Preferably, the housing is provided with an oil tank, which is provided with an oil inlet pipe connected to an oil pump unit, which is provided with an output pipe connected to an oil supply unit. The housing is provided with an oil tank connected to the oil pump unit, wherein the oil tank and the oil pump unit are connected via an oil inlet pipe, and the oil pump unit is provided with an output pipe connected to the oil supply unit. The oil supply unit can provide oil lubrication for the rotating chain. The oil inlet and output pipes allow the position of the oil pump unit to be flexibly set, and can avoid interference with the intermediate shaft, thereby achieving a compact structure.

[0008] Preferably, the housing is connected to a guide plate, a chain is movably connected to the guide plate, and the oil supply unit is disposed on the guide plate. The guide plate connected to the housing can position the chain, and the chain rotates on the guide plate. The oil supply unit is disposed on the guide plate to fix the position of the oil supply unit. The oil supply unit is disposed close to the chain, thereby enabling sufficient lubrication of various parts of the moving chain.

[0009] Preferably, the rotation output assembly includes an output rotor, wherein an output bevel gear is connected to one end of the output rotor near the transmission disc, and the transmission disc is provided with a transmission bevel gear. The rotation output assembly includes an output rotor, wherein the output rotor is provided with an output bevel gear, and the output bevel gear meshes with the transmission bevel gear, so that the output bevel gear and the transmission bevel gear can change the direction of rotational transmission, making the placement of the output rotor more compact.

[0010] Preferably, the output bevel gear and the transmission bevel gear are both provided with helical gears. Setting both as helical gears can ensure smooth transmission, be suitable for high-speed transmission, and reduce noise.

[0011] Preferably, the housing is connected to a guide plate, the guide plate being provided with a connecting hole, a tensioner being provided within the housing, and a connecting shaft being provided on the tensioner and passing through the connecting hole. The housing is connected to a guide plate, the guide plate being provided with a connecting hole, wherein the connecting hole engages with the connecting shaft, and the connecting shaft is provided on the tensioner. The tensioning of the tensioner drives the guide plate to adaptively tension the chain, thereby improving the flexibility and stability of the hand saw during operation, avoiding the complex operation of manually adjusting the tension, and achieving different tensioning effects under different working conditions.

[0012] Preferably, a slide groove is provided in the housing, a tension block is slidably connected in the slide groove, a reset member connected to the tension block is provided in the slide groove, and the connecting shaft is provided on the tension block. A slide groove is provided on the housing, and the tension block designed in the slide groove can slide relatively therein, wherein a reset member is provided in the slide groove, and the reset member includes but is not limited to a spring. The reset member abuts against the tension block, and the movement of the tension block can be changed under different external forces, thereby producing different tensioning effects. The movement of the tension block drives the guide plate to move synchronously through the connecting shaft.

[0013] Preferably, the housing is provided with a locking knob, which passes through the housing and abuts the guide plate. The housing is provided with a locking knob, wherein the locking knob can produce different tightening and loosening effects when rotated in different directions, wherein the locking knob can abut the guide plate, and the locking button abuts the guide plate. When the locking button rotates, the squeezing force on the guide plate can be controlled. When the squeezing force on the guide plate is sufficient, a large friction force is generated between the guide plate and the housing, thereby preventing the tensioning block from driving the guide plate to move, and producing a limiting effect on the tensioning of the tensioning block. When the locking button releases the squeezing of the guide plate, when the tensioning state of the tensioning block changes, the tensioning degree of the guide plate will be driven to change, thereby achieving automatic tensioning.

[0014] Preferably, the locking knob is rotatably connected to a toggle plate, the locking knob is provided with a rotating shaft, the rotating shaft is connected to a torsion spring, and the toggle plate is rotatably connected to the rotating shaft. The rotating button is provided with a toggle plate, wherein the toggle plate can rotate relative to the locking button, and the toggle plate rotates around the rotating shaft. The toggle plate is provided with a torsion spring on the rotating shaft, thereby driving the toggle plate to reset. The rotation of the toggle plate can better drive the locking knob to rotate, making it easier for the user to adjust the force.

[0015] Preferably, the housing includes a handle portion, a battery is disposed at the rear end of the handle portion, the battery being connected to a rotation output assembly disposed on the side of the intermediate shaft proximal to the battery, and the oil pump unit disposed on the side of the intermediate shaft distal to the battery. The housing includes a handle portion, and the battery is disposed at the rear end of the handle portion, the rear end being the side of the handle portion distal to the guide plate and saw blade. Thus, the battery provides a balancing effect on the device. The rotation output assembly and the oil pump unit are disposed on either side of the intermediate shaft, respectively, thereby achieving balance for the entire device. Furthermore, the layout of the various components is more rational, minimizing interference and ensuring uniform weight distribution.

[0016] The beneficial effects of the utility model are as follows:

[0017] (1) The oil pump unit can be integrated into the hand saw, and the oil pump unit can be driven automatically and indirectly by the existing drive device, without providing a separate oil pump unit drive device, thereby realizing automatic oil supply of the device;

[0018] (2) It can be tensioned adaptively to ensure the connection stability between the guide plate and the chain;

[0019] (3) Ability to control the adaptive tensioning switch to ensure flexibility in responding to different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of the present utility model.

[0021] Figure 2 It is the first partial axonometric drawing of the present invention.

[0022] Figure 3 yes Figure 1 Front view of the oil pump unit.

[0023] Figure 4 It is the second partial axonometric drawing of the present invention.

[0024] Figure 5 It is the third partial axonometric drawing of the present invention.

[0025] Figure 6 yes Figure 5 Schematic diagram of the structure of the middle locking knob.

[0026] Figure 7 It is a partial axonometric drawing of the guide plate in the utility model.

[0027] Figure 8 It is an axonometric drawing of the locking knob in the utility model.

[0028] In the picture:

[0029] 1 housing, 11 handle, 12 battery;

[0030] 2 intermediate rotating shaft, 21 transmission plate, 211 transmission bevel gear, 22 worm end;

[0031] 3 rotates the output assembly, 31 outputs the rotor, and 311 outputs the bevel gear;

[0032] 4 oil pump unit, 41 worm gear end, 42 oil tank, 43 oil inlet pipe, 44 output pipe, 45 oil supply part;

[0033] 5 guide plates, 51 connecting holes;

[0034] 6 chains;

[0035] 7 tensioner, 71 connecting shaft, 72 tensioning block, 73 reset member;

[0036] 8 chutes;

[0037] 9 locking knob, 91 toggle plate, 92 rotating shaft, 93 torsion spring. DETAILED DESCRIPTION

[0038] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0039] Example 1:

[0040] like Figure 1 、 2 As shown, an automatic oil supply chain saw includes a housing 1, an intermediate shaft 2 is rotatably connected to the housing 1, a transmission plate 21 is connected to the intermediate shaft 2, a rotation output assembly 3 is connected to the transmission plate 21, a worm end 22 is provided on the intermediate shaft 2, the worm end is connected to an oil pump unit 4, and the oil pump unit 4 is provided with a worm wheel end 41 that engages with the worm end 22.

[0041] In the present application, an intermediate rotating shaft 2 is provided on the housing 1, wherein the intermediate rotating shaft 2 can rotate relative to the housing 1, and a transmission disc 21 is provided on the intermediate rotating shaft 2, and the transmission disc 21 is connected to the rotation output component 3. The rotation output component 3 can output torque, which is converted into a rotational action of the intermediate rotating shaft 2 through the transmission disc 21, wherein the rotation of the intermediate rotating shaft 2 can drive the chain 6 to rotate, thereby completing the output of the hand saw. Further, in the present application, a worm end 22 is provided on the intermediate rotating shaft 2, wherein the worm end 22 is provided with helical teeth, and accordingly, the worm end 22 is connected to the oil pump unit 4, and the oil pump unit 4 is provided with a worm gear end 41. The rotation of the worm gear end 41 can drive the oil pump unit 4 to work, and the worm gear end 41 and the worm gear end 41 are connected to the worm. The end 22 is engaged. When the rotating output component 3 drives the transmission disk 21 to rotate, the transmission disk 21 synchronously drives the intermediate shaft 2 to rotate. The intermediate shaft 2 can drive the worm end 22 thereon to rotate. Since the worm wheel end 41 is engaged with the worm end 22, the worm end 22 rotates synchronously. Therefore, the oil pump unit 4 can work synchronously through the output of the rotating output component 3 to realize automatic oil supply. The oil supply of the oil pump unit 4 in this application is connected to the working transmission component of the hand saw in this application, which can not only realize synchronous oil supply, but also avoid the need to set up a separate oil supply drive device, thereby ensuring the compactness of the structure to the greatest extent. Through the synchronous drive of the intermediate shaft 2, the oil supply and on-off of the oil pump can be adaptively controlled to improve adaptability and flexibility.

[0042] like Figure 3 As shown, the housing 1 is provided with an oil tank 42, on which an oil inlet pipe 43 is provided. The oil inlet pipe 43 is connected to the oil pump unit 4. The oil pump unit 4 is provided with an output pipe 44, which is connected to an oil supply unit 45. The housing 1 is provided with an oil tank 42, which is connected to the oil pump unit 4. The oil tank 42 and the oil pump unit 4 are connected via an oil inlet pipe 43. The oil pump unit 4 is provided with an output pipe 44 connected to an oil supply unit 45. The oil supply unit 45 can provide oil lubrication for the rotating chain 6. The oil inlet pipe 43 and the output pipe 44 can flexibly set the position of the oil pump unit 4 and avoid interference with the intermediate shaft 2, thereby achieving a compact structure.

[0043] like Figure 1 、 2 As shown in Figures 3 and 4, the housing 1 is connected to a guide plate 5, a chain 6 is movably connected to the guide plate 5, and an oil supply portion 45 is provided on the guide plate 5. The guide plate 5 connected to the housing 1 can position the chain 6, and the chain 6 rotates on the guide plate 5. The oil supply portion 45 is provided on the guide plate 5, so that the position of the oil supply portion 45 can be fixed. The oil supply portion 45 is provided close to the chain 6, so that various parts of the chain 6 in motion can be fully lubricated.

[0044] like Figure 2As shown, the rotary output assembly housing 3 includes an output rotor 31. An output bevel gear 311 is connected to one end of the output rotor 31 near the transmission disc 21. The transmission disc 21 is provided with a transmission bevel gear 211. Both the output bevel gear 311 and the transmission bevel gear 211 are provided with helical gears. The rotary output assembly 3 includes an output rotor 31, wherein the output bevel gear 311 is provided on the output rotor 31. The output bevel gear 311 meshes with the transmission bevel gear 211, thereby enabling the output bevel gear 311 and the transmission bevel gear 211 to change the direction of rotational transmission, making the placement of the output rotor 31 more compact. The helical gears of both ensure smooth transmission, are suitable for high-speed transmission, and reduce noise.

[0045] The assembly and working process of the automatic oil supply chain saw in this embodiment are as follows: In this application, a housing 1 is provided, and an intermediate shaft 2 is rotatably connected in the housing 1. Further, a transmission disc 21 is provided on the intermediate shaft 2, and a transmission bevel gear 211 is provided on the transmission disc 21. The transmission bevel gear 211 is a helical gear structure. An output rotor 31 is meshed and connected to the transmission disc 21, wherein the output rotor 31 is provided on the rotation output component 3, and the output rotor 31 is connected to the battery 12 via a power line. A throttle switch is connected to the power line between the battery 12 and the output rotor 31, and the output of the output rotor 31 is controlled by the throttle switch. The output rotor 31 is provided with an output bevel gear 311, which is a helical gear structure. The output bevel gear 311 is engaged with the transmission bevel gear 211. A worm end 22 is provided at the end of the intermediate shaft 2. The setting orientation of the worm end 22 is opposite to the orientation of the transmission bevel gear 211. The worm end 22 is provided with helical teeth. The worm end 22 is connected to the oil pump unit 4, wherein the oil pump unit 4 is provided with a worm wheel end 41, which meshes with the worm end 22. When the intermediate shaft 2 rotates, the worm wheel end 41 can be driven to rotate through the worm end 22, thereby driving the oil pump unit 4 to work.

[0046] In the present application, the oil pump unit 4 and the rotation output assembly 3 are respectively arranged on the radial sides of the intermediate rotating shaft 2, and the oil pump unit 4 is connected to the oil tank 42, wherein the oil pump unit 4 is connected to the oil tank 42 through an oil inlet pipe 43, and the oil pump unit 4 is also connected to an output pipe 44, wherein the output pipe 44 is connected to the oil supply part 45, and the oil supply part 45 is arranged on the guide plate 5, and the oil supply part 45 is arranged close to the chain 6. The oil transported in the oil supply part 45 can contact the moving chain 6, thereby lubricating the chain 6, wherein the oil tank 42 is arranged on the side of the oil pump unit 4 away from the intermediate rotating shaft 2, and the oil pump unit 4 is arranged above the intermediate rotating shaft 2, and the oil pump unit 4 is connected to the housing 1 by bolts.

[0047] During operation, the output rotor 31 is controlled by the throttle switch to rotate and output, the output rotor 31 drives the transmission disc 21 to rotate, the transmission disc 21 drives the intermediate shaft 2 to rotate, the intermediate shaft 2 drives the worm end 22 to rotate, the worm end 22 engages with the worm wheel end 41, so that the worm wheel end 41 drives the oil pump unit 4 to work, and the oil pump unit 4 works to transport the oil in the oil tank 42 through the oil inlet pipe 43 to the output pipe 44, to the oil supply part 45, the oil supply part 45 is set on the guide plate 5, and the chain 6 rotates through the oil supply part 45, thereby achieving the lubrication effect of the chain 6.

[0048] Example 2:

[0049] like Figure 7 、 8 As shown, in this embodiment, the housing 1 is connected to a guide plate 5, which is provided with a connecting hole 51. A tensioner 7 is provided in the housing 1, and a connecting shaft 71 is provided on the tensioner 7, which passes through the connecting hole 51. The housing 1 is connected to the guide plate 5, which is provided with a connecting hole 51. The connecting hole 51 is engaged with the connecting shaft 71, and the connecting shaft 71 is provided on the tensioner 7. The tensioning of the tensioner 7 drives the guide plate 5 to adaptively tighten the chain 6, thereby improving the flexibility and stability of the hand saw during operation, avoiding the complex operation of manually adjusting the tension, and achieving different tensioning effects under different working conditions.

[0050] A chute 8 is provided in the housing 1, and a tensioning block 72 is slidably connected to the chute 8. A reset member 73 connected to the tensioning block 72 is provided in the chute 8, and a connecting shaft 71 is provided on the tensioning block 72. The housing 1 is provided with a chute 8, and the tensioning block 72 designed in the chute 8 can slide relatively therein. A reset member 73 is provided in the chute 8, and the reset member 73 includes but is not limited to a spring. The reset member 73 abuts against the tensioning block 72, and can change the movement of the tensioning block 72 under different external forces, thereby producing different tensioning effects. The movement of the tensioning block 72 drives the guide plate 5 to move synchronously through the connecting shaft 71.

[0051] like Figure 5 、 6 As shown, a locking knob 9 is provided on the shell 1, and the locking knob 9 passes through the shell 1 and abuts the guide plate 5. The locking knob 9 is rotatably connected to a toggle plate 91. The locking knob 9 is provided with a rotating shaft 92, and the rotating shaft 92 is connected to a torsion spring 93. The toggle plate 91 is rotatably connected to the rotating shaft 92.

[0052] The housing 1 is provided with a locking knob 9, wherein the locking knob 9 can produce different tightening and loosening effects when it is rotated in different directions, wherein the locking knob 9 can abut against the guide plate 5, and the locking button abuts against the guide plate 5. When the locking button rotates, the extrusion force on the guide plate 5 can be controlled. When the extrusion force on the guide plate 5 is sufficient, a large friction force is generated between the guide plate 5 and the housing 1, thereby preventing the tensioning block 72 from driving the guide plate 5 to move, and producing a limiting effect on the tensioning of the tensioning block 72, while the locking button is loosened. When the guide plate 5 is squeezed, when the tensioning state of the tensioning block 72 changes, the guide plate 5 will be driven to change its tensioning degree, thereby realizing automatic tensioning. A toggle plate 91 is provided on the rotary button, wherein the toggle plate 91 can be rotated relative to the locking button. The toggle plate 91 rotates around the rotating shaft 92, and a torsion spring 93 is provided on the rotating shaft 92, thereby driving the toggle plate 91 to reset. The rotation of the toggle plate 91 can better drive the locking knob 9 to rotate, which is convenient for the user to adjust the force.

[0053] like Figure 1 As shown, the housing includes a handle portion 11, with a battery 12 disposed at the rear end of the handle portion 11. The battery 12 is connected to the rotation output assembly 3, which is disposed on the side of the intermediate shaft 2 close to the battery 12, and the oil pump unit 4 is disposed on the side of the intermediate shaft 2 away from the battery 12. The housing includes a handle portion 11, and the battery 12 is disposed at the rear end of the handle portion 11, which is the side of the handle portion 11 away from the guide plate 5 and the saw blade. Therefore, the battery 12 can provide a balancing effect on the device, wherein the rotation output assembly 3 and the oil pump unit 4 are respectively disposed on either side of the intermediate shaft 2, thereby achieving balance of the entire device. The layout of the various components is more reasonable, reducing interference and ensuring uniform weight distribution.

[0054] In addition to the aforementioned technical features, this embodiment further includes a housing 1, to which an intermediate shaft 2 is rotatably connected. A transmission plate 21 is connected to the intermediate shaft 2, which is connected to a rotation output assembly 3. A worm end 22 is provided on the intermediate shaft 2, which is connected to an oil pump unit 4. The oil pump unit 4 is provided with a worm gear end 41 that engages with the worm end 22. The housing 1 is provided with an oil tank 42, which is provided with an oil inlet pipe 43, which is connected to the oil pump unit 4. The oil pump unit 4 is provided with an output pipe 44, which is connected to an oil supply unit 45. A guide plate 5 is connected to the housing 1, to which a chain 6 is movably connected. The oil supply unit 45 is provided on the guide plate 5. The rotation output assembly 3 includes an output rotor 31 . An output bevel gear 311 is connected to one end of the output rotor 31 close to the transmission disc 21 . The transmission disc 21 is provided with a transmission bevel gear 211 . Both the output bevel gear 311 and the transmission bevel gear 211 are provided with helical gears.

Claims

1. An automatic oil supply chain saw, comprising a housing (1), characterized in that: The housing (1) is rotatably connected to an intermediate rotating shaft (2), the intermediate rotating shaft (2) is connected to a transmission plate (21), the transmission plate (21) is connected to a rotation output assembly (3), the intermediate rotating shaft (2) is provided with a worm end (22), the worm end (22) is connected to an oil pump unit (4), the oil pump unit (4) is provided with a worm wheel end (41) meshing with the worm end (22); the housing (1) is connected to a guide plate (5); the housing (1) is provided with a locking knob (9), the locking knob (9) passes through the housing (1) and abuts against the guide plate (5); the locking knob (9) is rotatably connected to a toggle plate (91), the locking knob (9) is provided with a rotating shaft (92), the rotating shaft (92) is connected to a torsion spring (93), and the toggle plate (91) is rotatably connected to the rotating shaft (92).

2. The automatic oil supply chain saw according to claim 1, characterized in that: The housing (1) is provided with an oil tank (42), the oil tank (42) is provided with an oil inlet pipeline (43), the oil inlet pipeline (43) is connected to an oil pump unit (4), the oil pump unit (4) is provided with an output pipeline (44), and the output pipeline (44) is connected to an oil supply unit (45).

3. The automatic oil supply chain saw according to claim 2, characterized in that: A chain (6) is movably connected to the guide plate (5), and the oil supply portion (45) is arranged on the guide plate (5).

4. The automatic oil supply chain saw according to claim 1, characterized in that: The rotation output assembly (3) comprises an output rotor (31), one end of the output rotor (31) close to the transmission disc (21) is connected to an output bevel gear (311), and the transmission disc (21) is provided with a transmission bevel gear (211).

5. The automatic oil supply chain saw according to claim 4, characterized in that: The output bevel gear (311) and the transmission bevel gear (211) are both provided with helical gears.

6. An automatic oil supply chain saw according to any one of claims 1 to 5, characterized in that: The guide plate (5) is provided with a connecting hole (51), a tensioner (7) is provided in the housing (1), and a connecting shaft (71) passing through the connecting hole (51) is provided on the tensioner (7).

7. The automatic oil supply chain saw according to claim 6, characterized in that: A slide groove (8) is provided in the housing (1), a tension block (72) is slidably connected in the slide groove (8), a reset member (73) connected to the tension block (72) is provided in the slide groove (8), and the connecting shaft (71) is provided on the tension block (72).

8. An automatic oil supply chain saw according to any one of claims 1 to 5, characterized in that: The housing (1) comprises a handle portion (11), a battery (12) being arranged at the rear end of the handle portion (11), the battery (12) being connected to a rotation output assembly (3), the rotation output assembly (3) being arranged on a side of the intermediate rotating shaft (2) close to the battery (12), and the oil pump unit (4) being arranged on a side of the intermediate rotating shaft (2) away from the battery (12).

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