Adjustable lithium electric saw

Abstract

The utility model belongs to the technical field of electric saws, and particularly relates to an adjustable lithium electric saw which comprises an electric saw body and a gland, a guide plate is detachably arranged between the electric saw body and the gland, a chain is arranged on the guide plate, a driving device used for driving the chain to move is arranged in the electric saw body, and the guide plate is arranged between the electric saw body and the gland in a sliding mode. A knob is rotationally arranged on the gland, an eccentric driving lever is arranged on the knob, and a driving surface matched with the eccentric driving lever is arranged on the guide plate; a ratchet part is arranged on the gland, a ratchet piece and an elastic piece for driving the ratchet piece to be matched with the ratchet part are arranged on the knob, the ratchet piece is matched with the ratchet part so that the knob can only rotate in one direction relative to the gland, a control part is arranged on the ratchet piece, and the ratchet piece can be controlled to be separated from the ratchet part through the control part, so that the chain is loosely matched with the guide plate; the utility model aims to provide the adjustable lithium electric saw which is simple in structure and convenient for a user to use.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electric saw technical field, especially relate to an adjustable lithium electric saw. BACKGROUND

[0002] Lithium electric saw, also known as electric chain saw, refers to the chain saw that is used to cut wood.

[0003] The common lithium electric saw on the market mostly supports the chain through the guide plate, and the chain saw slides along the outer periphery of the guide plate during use, such as the chain saw chain adjusting tension structure disclosed in Chinese utility model patent CN 202321965779.1, which comprises a shell, a chain plate and a chain, the shell is provided with a power output shaft connected with the motor, the power output shaft is provided with a sprocket, the chain is installed on the chain saw through the chain plate and the sprocket, one side of the shell is provided with an adjusting groove, the adjusting groove is provided with a chain adjusting assembly, the chain adjusting assembly comprises an adjusting screw, an adjusting knob and an adjusting positioning rod, the adjusting knob is fixed on one end of the adjusting screw, the adjusting positioning rod is screwed on the other end of the adjusting screw, the adjusting groove is provided with a first slot on the pressing plate fixed on the shell, the adjusting positioning rod is arranged in the adjusting hole of the chain plate and drives the chain plate to move; the shell is provided with a locking bolt penetrating through the second slot, the pressing plate is provided with a through hole for the locking bolt to penetrate out, and the outer end of the locking bolt is screwed with a locking knob for locking the chain plate.

[0004] The above structure adjusts the relative position of the chain plate on the shell through the adjusting screw and the adjusting knob, and controls the relative fixation of the chain plate and the shell through the locking bolt and the locking knob, so as to avoid the relative movement of the chain plate and the shell during use, but the structure is not convenient to operate, and the adjusting knob and the locking knob need to be driven respectively during use, which is not convenient for quick adjustment. SUMMARY

[0005] In order to overcome the defects in the prior art, the purpose of the utility model is to provide an adjustable lithium electric saw which is simple in structure and convenient for users to use.

[0006] The utility model discloses a purpose is realized as follows:

[0007] An adjustable lithium electric saw, comprising an electric saw main body and a gland, a guide plate is detachably arranged between the electric saw main body and the gland, a chain is arranged on the guide plate, a driving device for driving the chain to move is arranged in the electric saw main body, the guide plate is slidably arranged between the electric saw main body and the gland, a knob is rotatably arranged on the gland, an eccentric lever is arranged on the knob, a driving surface matched with the eccentric lever is arranged on the guide plate, the knob is rotated, the eccentric lever can abut on the driving surface and drive the guide plate to slide, so as to drive the guide plate to abut tightly on the chain.

[0008] The ratchet part is arranged on the cover, the ratchet gear part is arranged on the knob, and the elastic part is arranged to drive the ratchet gear part to cooperate with the ratchet part, so that the knob can only rotate in one direction with the cover, thereby avoiding loosening of the chain and the guide plate.

[0009] The utility model further sets up: control convex is arranged on the knob, the sliding slot is arranged in the control convex, the control part is arranged in the sliding slot, and the control part is exposed outside from one end of the sliding slot.

[0010] The utility model further sets up: the receiving groove is arranged on the cover, the ratchet part is arranged on the side wall of the receiving groove, the control convex and the control part are exposed from the receiving groove, and the ratchet part of the control part on one side extends into the receiving groove, and the elastic part drives the ratchet part to abut on the ratchet part and avoids the control part from separating from the sliding slot.

[0011] The utility model further sets up: the guide convex is arranged on both sides of the control part, and the guide groove is arranged on the both side walls of the sliding slot and is matched with the guide convex.

[0012] The utility model further sets up: the guide block is arranged on the electric saw main part, the guide groove is arranged on the one end of the guide plate between the electric saw main part and the cover, the guide block is connected with the guide groove and is slid, and the guide block can be exposed from the end of the guide groove and make the guide plate separate from the electric saw main part.

[0013] The utility model further sets up: the guide surface of inclination is arranged on the end of the guide groove, and the guide block can be guided and inserted into the guide groove through the guide surface.

[0014] The utility model further sets up: the knob includes the knob part and the driving part, and the knob part and the driving part are arranged on both sides of the cover respectively, the hinge hole is arranged on the cover, the hinge shaft is arranged on the driving part and is matched with the hinge hole, and the knob part and the driving part abut on both ends of the hinge hole respectively.

[0015] The utility model further sets up: the first positioning convex is arranged on the driving part, the first positioning hole is arranged on the knob part and is matched with the first positioning convex, and the control part and the eccentric lever are arranged on the same side of the hinge hole.

[0016] The utility model further sets up: the cover includes the cover main part and the mounting seat of detachable connection, the ratchet part is arranged on the mounting seat, the second positioning convex is arranged on the mounting seat, and the second positioning hole is arranged on the cover main part and is matched with the second positioning convex.

[0017] Compared with the prior art, the utility model has the advantages of:

[0018] 1. In this utility model, the knob drives the guide plate through an eccentric lever, which has a simple structure and is easy to manufacture. During use, the ratchet and ratchet mechanism prevent the knob from reversing, and the chain will not detach from the outside of the guide plate during adjustment. When in use, the user can adjust the guide plate by turning the knob without having to drive the ratchet separately, which is convenient for the user. When the user needs to disassemble the chain or guide plate, the ratchet can be driven to disassemble from the ratchet through the control unit, which facilitates the disassembly and installation of the chain and guide plate.

[0019] 2. The control protrusion in this utility model facilitates user control of the knob rotation. Furthermore, the sliding groove within the control protrusion allows for one-handed control of both the knob and the ratchet, enhancing user convenience. The ratchet portion on the side wall of the storage groove ensures proper engagement between the ratchet and the ratchet during knob rotation. The control protrusion and control unit protrude from the storage groove, facilitating user control of both the knob and the ratchet. The guide protrusion and guide groove facilitate stable sliding of the ratchet on the knob, enhancing user control.

[0020] 3. The guide block and guide groove in this utility model facilitate the stable sliding of the guide plate on the electric saw body. Since the guide groove is located at one end of the guide plate, the guide plate can be disassembled or installed without disassembling the pressure cap and the electric saw body during use, which facilitates the replacement and maintenance of the guide plate. The guide surface facilitates the quick cooperation between the guide groove and the guide block, facilitates the quick installation of the guide plate and the electric saw body, and facilitates the assembly and production of lithium electric saws.

[0021] 4. The knob and drive parts respectively located on both sides of the pressure cover in this utility model facilitate the stable installation of the knob and the pressure cover. The knob does not need to be disassembled during the disassembly of the pressure cover and the main body of the electric saw, which facilitates the disassembly and maintenance of the lithium electric saw. The hinge part facilitates the stable rotation of the knob and the pressure cover. The first positioning protrusion and the first positioning hole facilitate the positioning and installation of the knob and the drive part. Since the control part and the eccentric lever are located on the same side of the hinge hole, it is easy for the user to know the position of the eccentric lever and to adjust and control it. This structure also facilitates the synchronous rotation of the knob and the drive part, avoiding relative rotation between the knob and the drive part during use.

[0022] 5. The detachable connection between the cap body and the mounting base in this utility model facilitates the production and assembly of the cap. Manufacturers can install the mounting base on caps of different specifications, which helps to reduce the production cost of the cap. The setting of the second positioning protrusion and the second positioning hole facilitates the positioning and installation of the cap body and the mounting base, and avoids the relative rotation of the mounting base and the cap body during use, which would cause the knob to rotate in the opposite direction. This is beneficial to the stable installation of the chain and the guide plate. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 is the explosion schematic view of the utility model;

[0025] Figure 3 is the partial sectional view of the utility model;

[0026] Figure 4 is the structure schematic view of the electric saw main body in the utility model;

[0027] Figure 5 is the explosion schematic view of the utility model in the gland;

[0028] Figure 6 is the structure schematic view of the mounting seat in the utility model

[0029] Figure 7 is the structure schematic view of the knob part in the utility model;

[0030] Figure 8 is the structure schematic view of the driving part in the utility model;

[0031] Figure 9 is the explosion schematic view of the utility model in the ratchet piece;

[0032] Figure 10 is the structure schematic view of the guide plate in the utility model.

[0033] The meaning of the reference numerals in the drawing: 1-electric saw main body;11-guiding block;12-positioning groove;13-arc end face;2-gland;21-gland main body;22-mounting seat;211-hinge hole;212-second positioning hole;221-receiving groove;222-ratchet part;223-second positioning protrusion;3-knob;31-knob part;32-driving part;

[0034] 311-control protrusion;312-slotted guide;313-guiding groove;321-eccentric lever;322-hinge shaft;

[0035] 323-first positioning protrusion;4-ratchet piece;41-control part;42-ratchet part;43-guiding protrusion;5-elastic member;6-guide plate;61-guiding groove;62-guiding surface;63-driving surface;7-driving device. DETAILED DESCRIPTION

[0036] The utility model will be further described in conjunction with the specific embodiment and the accompanying drawings:

[0037] Referring to Figures 1 to 10As shown, an adjustable lithium electric saw includes an electric saw body 1 and a gland 2, a guide plate 6 is detachably arranged between the electric saw body 1 and the gland 2, a chain is arranged on the guide plate 6, a driving device 7 for driving the chain to move is arranged in the electric saw body 1, the guide plate 6 is slidingly arranged between the electric saw body 1 and the gland 2, a knob 3 is rotatably arranged on the gland 2, an eccentric lever 321 is arranged on the knob 3, a driving surface 63 adapted to the eccentric lever 321 is arranged on the guide plate 6, the knob 3 is rotated, the eccentric lever 321 can abut against the driving surface 63 and drive the guide plate 6 to slide, so as to drive the guide plate 6 to abut against the chain; a ratchet part 222 is arranged on the gland 2, a ratchet piece 4 and an elastic piece 5 driving the ratchet piece 4 to cooperate with the ratchet part 222 are arranged on the knob 3, the cooperation of the ratchet piece 4 and the ratchet part 222 enables the knob 3 to rotate with the gland 2 in one direction only, so as to avoid the chain from being loose with the guide plate 6, and a control part 41 is arranged on the ratchet piece 4, the ratchet piece 4 can be controlled to be separated from the ratchet part 222 through the control part 41, so as to make the chain loose with the guide plate 6.

[0038] In the above structure, the knob 3 drives the guide plate 6 to move through the eccentric lever 321, the structure is simple, convenient for production and processing, and the knob 3 is prevented from being reversed through the ratchet piece 4 and the ratchet part 222 during use, the guide plate 6 will not be reversed during adjustment to cause the chain to be separated from the outside of the guide plate 6, the user can adjust the guide plate 6 by rotating the knob 3 during use, the ratchet piece 4 does not need to be driven separately, which is convenient for the user to use, when the user needs to dismount the chain or the guide plate 6, the ratchet piece 4 can be driven to be separated from the ratchet part 222 through the control part 41, which is convenient for dismounting and mounting the chain and the guide plate 6.

[0039] The electric saw body 1 is provided with a guide block 11 in the utility model, one end of the guide plate 6 penetrating between the electric saw body 1 and the gland 2 is provided with a guide groove 61, the guide block 11 is slidingly connected with the guide groove 61, and the guide block 11 can penetrate out of the end of the guide groove 61 and make the guide plate 6 separate from the electric saw body 1, the guide block 11 and the guide groove 61 are provided to facilitate the guide plate 6 to stably slide on the electric saw body 1, and since the guide groove 61 is arranged at one end of the guide plate 6, the guide plate 6 can be dismounted or mounted without dismounting the gland 2 from the electric saw body 1 during use, which is convenient for the replacement and maintenance of the guide plate 6.

[0040] The end of the guide groove 61 is provided with an inclined guide surface 62, the guide block 11 can penetrate into the guide groove 61 through the guide surface 62, the guide surface 62 is provided to facilitate the quick cooperation of the guide groove 61 and the guide block 11, facilitate the quick mounting of the guide plate 6 and the electric saw body 1, and facilitate the assembly and production of the lithium electric saw, preferably, the end of the guide block 11 is provided with an arc-shaped end surface 13, the arc-shaped end surface 13 facilitates the guide hole 11 to quickly penetrate into the guide groove 61.

[0041] The electric saw body 1 is provided with a positioning groove 12, the pressing cover 2 is arranged in the positioning groove 12 and is fixed in the positioning groove 12 through a fastener, the driving surface 63 is a side wall of an arc-shaped groove, one end of the guide groove 61 is communicated with the side wall of the arc-shaped groove, the guide surface 62 is connected with the driving surface 63, and the driving surface 63 can guide the guide block 11 during installation of the guide plate 6.

[0042] The knob 3 is provided with a control protrusion 311, the control protrusion 311 is provided with a sliding groove 312, the control portion 41 is arranged in the sliding groove 312, and the control portion 41 is exposed outside from one end of the sliding groove 312, the control protrusion 311 is arranged to facilitate a user to control rotation of the knob 3, and since the sliding groove 312 is arranged in the control protrusion 311, the user can control the knob 3 and the ratchet piece 4 with one hand, and the user can use conveniently.

[0043] The pressing cover 2 is provided with a receiving groove 221, a ratchet wheel portion 222 is arranged on a side wall of the receiving groove 221, the control protrusion 311 and the control portion 41 are arranged in the receiving groove 221, the ratchet portion 42 on one side of the control portion 41 extends into the receiving groove 221, the elastic member 5 drives the ratchet portion 42 to abut against the ratchet wheel portion 222 and avoids the control portion 41 from being separated from the sliding groove 312, the ratchet wheel portion 222 arranged on the side wall of the receiving groove 221 facilitates the ratchet piece 4 to cooperate with the ratchet wheel portion 222 during rotation of the knob 3, and since the control protrusion 311 and the control portion 41 are arranged in the receiving groove 221, the user can control the knob 3 and the ratchet piece 4 with one hand, and the user can use conveniently.

[0044] Preferably, the control portion 41 is provided with a guide protrusion 43 on each side, a guide groove 313 matched with the guide protrusion 43 is arranged on each side wall of the sliding groove 312, and the guide protrusion 43 and the guide groove 313 are arranged to facilitate stable sliding of the ratchet piece 4 on the knob 3, and the user can use conveniently.

[0045] The knob 3 comprises a knob portion 31 and a driving portion 32, the knob portion 31 and the driving portion 32 are arranged on two sides of the pressing cover 2 respectively, the pressing cover 2 is provided with a hinged hole 211, the driving portion 32 is provided with a hinged shaft 322 matched with the hinged hole 211, and the knob portion 31 and the driving portion 32 abut against two ends of the hinged hole 211 respectively, the knob portion 31 and the driving portion 32 arranged on two sides of the pressing cover 2 facilitate stable installation of the knob 3 and the pressing cover 2, the pressing cover 2 does not need to be disassembled with the knob 3 during disassembly of the lithium electric saw, and the lithium electric saw is convenient to disassemble and maintain, and the hinged portion facilitates stable rotation of the knob 3 and the pressing cover 2.

[0046] The first positioning convex 323 is arranged on the driving part 32, the first positioning hole matched with the first positioning convex 323 is arranged on the knob part 31, the control part 41 and the eccentric lever 321 are arranged on the same side of the hinged hole 211, the first positioning convex and the first positioning hole are arranged to facilitate the positioning installation of the knob part 31 and the driving part 32, and the control part 41 and the eccentric lever 321 are arranged on the same side of the hinged hole 211, so that the position of the eccentric lever 321 is convenient for a user to understand, the user is convenient for adjusting and controlling, the structure is convenient for synchronous rotation of the knob part 31 and the driving part 32, and relative rotation of the knob part 31 and the driving part 32 in the use process is avoided.

[0047] The gland 2 comprises a detachable gland body 21 and a mounting base 22, the ratchet part 222 is arranged on the mounting base 22, the second positioning convex 223 is arranged on the mounting base 22, the second positioning hole 212 matched with the second positioning convex 223 is arranged on the gland body 21, the detachable gland body 21 and the mounting base 22 facilitate production and assembly of the gland 2, the producer can install the mounting base 22 on the gland 2 of different specifications, the production cost of the gland 2 is reduced, the second positioning convex 223 and the second positioning hole 212 are arranged to facilitate positioning installation of the gland body 21 and the mounting base 22, the mounting base 22 and the gland body 21 are prevented from relatively rotating in the use process, the knob 3 is prevented from being reversely rotated, and the chain and the guide plate 6 are stably installed.

[0048] The above embodiment is only a preferred embodiment of the utility model, and does not limit the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. An adjustable lithium-ion electric saw, comprising a saw body (1) and a pressure cap (2), wherein a guide plate (6) is detachably disposed between the saw body (1) and the pressure cap (2), a chain is disposed on the guide plate (6), and a drive device (7) for driving the chain is disposed in the saw body (1), characterized in that: The guide plate (6) is slidingly arranged between the electric saw body (1) and the gland (2), the knob (3) is rotatably arranged on the gland (2), the eccentric lever (321) is arranged on the knob (3), the driving surface (63) is arranged on the guide plate (6) and matched with the eccentric lever (321), the knob (3) is rotated, the eccentric lever (321) can abut against the driving surface (63) and drive the guide plate (6) to slide, so that the guide plate (6) is driven to abut against the chain; The gland (2) is provided with a ratchet part (222), the knob (3) is provided with a ratchet part (4) and a elastic part (5) for driving the ratchet part (4) to cooperate with the ratchet part (222), the ratchet part (4) and the ratchet part (222) cooperate to make the knob (3) only rotate with the gland (2) in one direction, so as to avoid the chain and the guide plate (6) loose, and the control part (41) is arranged on the ratchet part (4), the ratchet part (4) and the ratchet part (222) can be controlled to be separated through the control part (41), so that the chain and the guide plate (6) are loose.

2. The adjustable lithium battery saw of claim 1, wherein: The knob (3) is provided with a control protrusion (311), the control protrusion (311) is provided with a sliding groove (312), the control part (41) is slidingly arranged in the sliding groove (312), and the control part (41) is exposed outside from one end of the sliding groove (312).

3. An adjustable lithium battery saw according to claim 2, characterized in that: The gland (2) is provided with a receiving groove (221), the ratchet part (222) is arranged on the side wall of the receiving groove (221), the control protrusion (311) and the control part (41) are arranged outside the receiving groove (221), and the ratchet part (42) of the control part (41) extends to the receiving groove (221) on one side.

4. An adjustable lithium battery saw according to claim 3, wherein: The control part (41) is provided with a guide protrusion (43) on both sides, and the guide groove (313) matched with the guide protrusion (43) is arranged on the both side walls of the sliding groove (312).

5. The adjustable lithium battery saw of claim 1, wherein: The electric saw body (1) is provided with a guide block (11), one end of the guide plate (6) between the electric saw body (1) and the gland (2) is provided with a guide groove (61), the guide block (11) is slidingly connected with the guide groove (61), and the guide block (11) can be arranged outside the guide groove (61) and make the guide plate (6) separate from the electric saw body (1).

6. An adjustable lithium electric saw according to claim 5, characterized in that: The end of the guide groove (61) is provided with an inclined guide surface (62), and the guide block (11) can be guided into the guide groove (61) through the guide surface (62).

7. The adjustable lithium battery saw of claim 1, wherein: The knob (3) comprises a knob part (31) and a driving part (32), the knob part (31) and the driving part (32) are arranged on both sides of the gland (2) respectively, the hinge hole (211) is arranged on the gland (2), the hinge shaft (322) matched with the hinge hole (211) is arranged on the driving part (32), and the knob part (31) and the driving part (32) abut against both ends of the hinge hole (211) respectively.

8. An adjustable lithium electric saw according to claim 7, characterized in that: The driving part (32) is provided with a first positioning protrusion (323), the knob part (31) is provided with a first positioning hole matched with the first positioning protrusion (323), and the control part (41) and the eccentric lever (321) are arranged on the same side of the hinged hole (211).

9. The adjustable lithium battery saw of claim 1, wherein: The gland (2) comprises a detachably connected gland body (21) and a mounting base (22), the ratchet part (222) is arranged on the mounting base (22), the mounting base (22) is provided with a second positioning protrusion (223), and the gland body (21) is provided with a second positioning hole (212) matched with the second positioning protrusion (223).

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