CN211135762U

CN211135762U - Electric chain saw of high security

Info

Publication number: CN211135762U
Application number: CN201922353897.7U
Authority: CN
Inventors: 陈振明
Original assignee: Changsha Mingpu Electromechanical Equipment Co ltd
Current assignee: Changsha Mingpu Electromechanical Equipment Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-07-31
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses an electric chain saw of high security, including the shell, the other end fixedly connected with backup pad of shell, the outside of backup pad is provided with the saw chain, and the cavity has been seted up to the inside of shell, is provided with the motor in the cavity, the main shaft fixedly connected with gear of motor, the gear outside with the saw chain transmission is connected, the support frame with saw chain elasticity adjustment mechanism connects, and the shell is close to lower wall is provided with first protection machanism and second protection machanism respectively on one side of saw chain, is provided with the braking in the cavity the arrestment mechanism of gear. The utility model discloses be provided with first protection machanism and second protection machanism, prevent that the chain on the electric chain saw from breaking off from top or bottom, hinder to operating personnel, when the chain disconnection, operating personnel can make arrestment mechanism brake the gear to improve the security of this device greatly, through swivel nut, can adjust the horizontal position of gear, thereby carry out the tensioning operation to the chain.

Description

Electric chain saw of high security

Technical Field

The utility model relates to a chain saw equipment technical field, in particular to electric chain saw of high security.

Background

With the continuous development of the industry, the electric chain saw is adopted for lumbering, cutting and the like to improve the working efficiency, the chain saw is also called as a chain saw, is a hand-held saw taking a gasoline engine as power and is mainly used for lumbering and material making, the working principle of the chain saw is that L-shaped blades staggered on a saw chain move transversely to perform shearing action, the chain saws on the market are various in types and different in functions, and the chain saws are generally classified into a power chain saw and a non-power chain saw.

However, the conventional motor chain saw has no protection mechanism, so that when the chain on a guide plate of the motor chain saw is suddenly cut off in the using process of the motor chain saw, the cut chain hurts an operator due to the rotation inertia of the chain, thereby bringing personal danger to the operator and being inconvenient for using the electric chain saw.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem and providing an electric chain saw with high safety.

In order to solve the above problem, the utility model provides a technical scheme: the utility model provides an electric chain saw of high security, includes the shell, the one end fixedly connected with first handle of shell, the upper surface of shell is provided with second handle, its characterized in that: the utility model discloses a saw chain, including the casing, the casing is provided with saw chain, the first in command internally mounted has the switch, the other end fixedly connected with backup pad of casing, the outside of backup pad is provided with the saw chain, the cavity has been seted up to the inside of casing, be provided with the motor in the cavity, motor fixed mounting is on the support frame, the main shaft of motor runs through support frame fixedly connected with gear, the gear outside with the saw chain transmission is connected, be provided with saw chain tightness adjustment mechanism in the cavity, the support frame with saw chain tightness adjustment mechanism connects, the casing is close to lower wall is provided with first protection machanism and second protection machanism respectively on one side of saw chain, be provided with the braking in.

As preferred, saw chain elasticity adjustment mechanism includes lead screw, lead screw cover, nut, spout and slider, the one end of lead screw is rotated and is connected the cavity inner wall, the other end of lead screw extends to the outer fixed connection nut of cavity, the lead screw cover is established on the lead screw and with the lead screw spiral shell closes and is connected, the support frame with lead screw cover fixed connection, the spout has been seted up to the cavity inner wall, sliding connection slider in the spout, the slider with lead screw cover fixed connection.

Preferably, the first protection mechanism comprises a first outer sleeve plate and a first telescopic plate, one end of the first telescopic plate is inserted into the first outer sleeve plate, one end, far away from the first telescopic plate, of the first outer sleeve plate is hinged to the shell, a plurality of bolt holes are formed in the upper surfaces of the first outer sleeve plate and the first telescopic plate along the length direction, fastening bolts are arranged in the bolt holes, the upper surface of the shell is hinged to a first electric telescopic rod, and the other end of the first electric telescopic rod is hinged to the upper surface of the first outer sleeve plate.

Preferably, the second protection mechanism comprises a transverse plate, connecting seats, limiting blocks, a rotating shaft, a first magnet, a second magnet, a fixed seat, a pulling block, a limiting rod, a spring and a limiting groove, the connecting seats are fixedly connected to the front side and the rear side of the bottom of the shell, the rotating shaft is rotatably connected between the connecting seats, two ends of the rotating shaft penetrate through the connecting seats and are fixedly connected with the limiting blocks, the transverse plate is fixedly connected to the rotating shaft, the limiting groove is formed in one side wall of the limiting block, which is far away from the transverse plate, the first magnet is fixedly installed on the bottom wall of one end, which is close to the first handle, of the shell, the second magnet is installed on the transverse plate, the fixed seat is fixedly connected to the outer wall of the front side of the shell, a through hole is formed in the fixed seat, the limiting rod is slidably connected, one end of the spring is connected with the pulling block, the other end of the spring is connected with the fixing seat, and the limiting rod is connected with the limiting groove in a clamping mode.

Preferably, the braking mechanism comprises a second electric telescopic rod, a braking block and a braking bulge, the surface of one side, far away from the motor, of the gear is provided with the braking bulges, the braking bulges surround to form an annular shape, the inner wall of the cavity is fixedly connected with the second electric telescopic rod, one end, close to the gear, of the second electric telescopic rod is fixedly connected with the braking block, and the braking block is matched with the braking bulge.

Preferably, a battery pack is arranged in the shell.

Preferably, the first handle and the second handle are both covered with sponge.

Preferably, the input ends of the switches are electrically connected with the battery pack, and the output ends of the switches are electrically connected with the motor, the first electric telescopic rod and the second electric telescopic rod respectively.

The utility model has the advantages that:

1. the utility model discloses be provided with first protection machanism and second protection machanism, prevent that the chain on the electric chain saw from breaking off from top or bottom, hinder to operating personnel, avoided current electric chain saw not have protection machanism to bring danger for operating personnel.

2. The utility model discloses a second protection machanism can place the diaphragm perpendicularly when using, goes into the spacing groove with the gag lever post card and fixes, and when idle, can be rotatory to parallel with the shell diapire with the diaphragm, thereby first magnet attracts fixed diaphragm with second magnet mutually, and the diaphragm interferes placing of electric chain saw when avoiding idle to the practicality of electric chain saw has been improved.

3. The utility model discloses when the chain disconnection, operating personnel can make arrestment mechanism brake the gear to the security of this device has been improved greatly.

4. The utility model discloses a swivel nut can adjust the horizontal position of gear to carry out the tensioning operation to the chain.

Drawings

For ease of illustration, the invention is described in detail by the following detailed description and accompanying drawings.

FIG. 1 is a schematic view of the external structure of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is a top view of the interior of the present invention;

fig. 4 is a schematic view of the gear of the present invention.

1-a housing; 2-a saw chain tightness adjusting mechanism; 21-a screw rod; 22-a screw rod sleeve; 23-a nut; 24-a chute; 25-a slide block; 3-a first protection mechanism; 31-a first outer race plate; 32-a first expansion plate; 33-a first electric telescopic rod; 4-a second protection mechanism; 41-a transverse plate; 42-a connecting seat; 43-a limiting block; 44-a rotating shaft; 45-a first magnet; 46-a second magnet; 47-a fixed seat; 48-pulling the block; 49-a limiting rod; 410-a spring; 411-a limiting groove; 5-a braking mechanism; 51-a second electric telescopic rod; 52-brake pads; 53-braking protrusions; 6-a first handle; 7-a second handle; 8-a switch; 9-a support plate; 10-saw chain; 11-a cavity; 12-a motor; 13-a support frame; 14-a gear; 15-battery pack.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the efficacy and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

As shown in fig. 1 to 4, the specific embodiment of the present invention adopts the following technical solutions: a high-safety electric chain saw comprises a housing 1, wherein a first handle 6 is fixedly connected to one end of the housing 1, and a second handle 7 is arranged on the upper surface of the housing 1, and is characterized in that: the utility model discloses a saw chain drive mechanism, including first in command 6, first in command, the other end fixedly connected with backup pad 9 of shell 1, the outside of backup pad 9 is provided with saw chain 10, cavity 11 has been seted up to the inside of shell 1, be provided with motor 12 in the cavity 11, motor 12 fixed mounting is on support frame 13, the main shaft of motor 12 runs through support frame 13 fixedly connected with gear 14, the gear 14 outside with saw chain 10 transmission is connected, be provided with saw chain tightness adjustment mechanism 2 in the cavity 11, the support frame with saw chain tightness adjustment mechanism 2 is connected, shell 1 is close to the wall is provided with first protection machanism 3 and second protection machanism 4 respectively about one side of saw chain 10, be provided with the braking in the cavity 11 gear 14's arrestment mechanism 5.

Wherein, saw chain tightness adjustment mechanism 2 includes lead screw 21, lead screw cover 22, nut 23, spout 24 and slider 25, the one end of lead screw 21 is rotated and is connected 11 inner walls of cavity, the other end of lead screw 21 extends to 11 outer fixed connection nuts 23 of cavity, 22 covers of lead screw cover are established on the lead screw 21 and with the spiral shell of lead screw 21 is connected, support frame 13 with 22 fixed connection of lead screw cover, spout 24 has been seted up to the upper wall in the cavity 11, sliding connection slider 25 in the spout 24, slider 25 with 22 fixed connection of lead screw cover.

Wherein, first protection machanism 3 includes first outer sleeve plate 31 and first expansion plate 32, the one end of first expansion plate 32 is inserted in first outer sleeve plate 31, first outer sleeve plate 31 is kept away from the one end of first expansion plate 32 with shell 1 is articulated, a plurality of bolt hole has all been seted up along length direction in the upper surface of first outer sleeve plate 31 and first expansion plate 32, be provided with fastening bolt in the bolt hole, the articulated first electric telescopic handle 33 of upper surface of shell 1, the other end of first electric telescopic handle 33 with first outer sleeve plate 31 upper surface is articulated.

Wherein, the second protection mechanism 4 comprises a transverse plate 41, a connecting seat 42, a limiting block 43, a rotating shaft 44, a first magnet 45, a second magnet 46, a fixed seat 47, a pulling block 48, a limiting rod 49, a spring 410 and a limiting groove 411, the front side and the rear side of the bottom of the shell 1 are fixedly connected with the connecting seat 42, the rotating shaft 44 is rotatably connected between the connecting seats 42, two ends of the rotating shaft 44 penetrate through the connecting seat 42 and are fixedly connected with the limiting block 43, the rotating shaft 44 is fixedly connected with a transverse plate 41, one side wall of the limiting block 43 far away from the transverse plate 41 is provided with the limiting groove 411, the bottom wall of one end of the shell 1 close to the first handle 6 is fixedly provided with the first magnet 45, the transverse plate 41 is provided with the second magnet 46 corresponding to the position of the first magnet 45, the outer wall of the front side of the shell, sliding connection has gag lever post 49 in the through-hole, gag lever post 49 top is connected with draws piece 48, the cover is equipped with spring 410 on the gag lever post 49, spring 410's one end is connected draw piece 48, spring 410's the other end is connected fixing base 47, gag lever post 49 with the spacing groove 411 joint.

The braking mechanism 5 comprises a second electric telescopic rod 51, a braking block 52 and a braking protrusion 53, wherein a plurality of braking protrusions 53 are arranged on the surface of one side, away from the motor 12, of the gear 14, the braking protrusions 53 form an annular shape, the inner wall of the cavity 11 is fixedly connected with the second electric telescopic rod 51, one end, close to the gear 14, of the second electric telescopic rod 51 is fixedly connected with the braking block 52, and the braking block 52 is matched with the braking protrusions 53.

Wherein, a battery pack 15 is arranged in the shell 1.

Wherein, the first handle 6 and the second handle 7 are both coated with sponge.

The input end of the switch 8 is electrically connected to the battery pack 15, and the output end of the switch 8 is electrically connected to the motor 12, the first electric telescopic rod 33 and the second electric telescopic rod 51 respectively.

The utility model discloses a user state does: the utility model is provided with the first protection mechanism and the second protection mechanism, thereby preventing the chain on the electric chain saw from being disconnected from the top or the bottom and hurting the operator, and avoiding the danger brought to the operator by the absence of the protection mechanism of the existing electric chain saw; the second protection mechanism of the utility model can vertically place the transverse plate when in use, and is clamped into the limiting groove by the limiting rod for fixing, when the second protection mechanism is not in use, the transverse plate can be rotated to be parallel to the bottom wall of the shell, the first magnet and the second magnet attract each other to fix the transverse plate, and the transverse plate is prevented from interfering the placement of the electric chain saw when the second protection mechanism is not in use, so that the practicability of the electric chain saw is improved; when the chain is disconnected, an operator can brake the gear by the brake mechanism, so that the safety of the device is greatly improved; the utility model discloses a swivel nut can adjust the horizontal position of gear to carry out the tensioning operation to the chain. When the electric saw is used, the transverse plate 41 is separated from the bottom wall of the shell 1, the transverse plate 41 is vertically placed and is pulled upwards to the pull block 48, the pull block 48 drives the limiting rod 49 to move upwards, the spring 410 is in a stretching state, the limiting rod 49 is aligned with the limiting groove 411, the pull block 48 is loosened, the limiting rod 49 is clamped in the limiting groove 411, the switch 8 electrically connected with the first electric telescopic rod 33 is pressed down, the angle between the first outer sleeve plate 31 and the first telescopic plate 32 is adjusted, the fastening bolt on the first outer sleeve plate 31 is loosened, the first telescopic plate 32 can be pulled away from the first outer sleeve plate 31, the fastening bolt is tightened again, the extending length of the first telescopic plate 32 is adjusted, the first handle 6 is held by one hand, the second handle 7 is held by the other hand, the switch 8 electrically connected with the motor 12 is pressed down, the motor 12 is started, the saw chain 10 is driven by the motor 12 to work, and when the chain is suddenly disconnected, an operator immediately loosens the switch 8 electrically connected, press the switch 8 of being connected with second electric telescopic handle 51, second electric telescopic handle 51 extension makes brake block 52 and braking arch 53 contact to gear 14 plays the braking action, greatly increased this device's security, swivel nut 23, nut 23 drive lead screw 21 is rotatory, lead screw 21 drives lead screw cover 22 and removes along spout 24, thereby the tensioning of regulation chain, when idle, make diaphragm 41 place the level and fix the diapire at shell 1.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, and it should be understood by those skilled in the art that the present invention is not limited by the above embodiments, which are only illustrative, but also various changes and modifications may be made without departing from the spirit and scope of the present invention, which fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. An electric chain saw of high security, includes shell (1), the one end fixedly connected with first handle (6) of shell (1), the upper surface of shell (1) is provided with second handle (7), its characterized in that: the automatic saw chain mechanism is characterized in that a switch (8) is installed inside the first handle (6), a supporting plate (9) is fixedly connected to the other end of the shell (1), a saw chain (10) is arranged on the outer side of the supporting plate (9), a cavity (11) is formed inside the shell (1), a motor (12) is arranged in the cavity (11), the motor (12) is fixedly installed on a supporting frame (13), a main shaft of the motor (12) penetrates through the supporting frame (13) and is fixedly connected with a gear (14), the outer side of the gear (14) is in transmission connection with the saw chain (10), a saw chain tightness adjusting mechanism (2) is arranged in the cavity (11), the supporting frame is connected with the saw chain tightness adjusting mechanism (2), a first protection mechanism (3) and a second protection mechanism (4) are respectively arranged on the upper wall and the lower wall of one side, close to the saw chain (10), of, and a braking mechanism (5) for braking the gear (14) is arranged in the cavity (11).

2. A high safety electric chain saw as set forth in claim 1, wherein: saw chain tightness adjustment mechanism (2) include lead screw (21), lead screw cover (22), nut (23), spout (24) and slider (25), the one end of lead screw (21) is rotated and is connected cavity (11) inner wall, the other end of lead screw (21) extends to cavity (11) outer fixed connection nut (23), lead screw cover (22) cover is established lead screw (21) go up and with lead screw (21) spiral shell is connected, support frame (13) with lead screw cover (22) fixed connection, spout (24) have been seted up to cavity (11) interior upper wall, sliding connection slider (25) in spout (24), slider (25) with lead screw cover (22) fixed connection.

3. A high safety electric chain saw as set forth in claim 1, wherein: first protection machanism (3) include first outer lagging (31) and first expansion plate (32), the one end of first expansion plate (32) is inserted in first outer lagging (31), first outer lagging (31) is kept away from the one end of first expansion plate (32) with shell (1) is articulated, a plurality of bolt hole has all been seted up along length direction to the upper surface of first outer lagging (31) and first expansion plate (32), be provided with fastening bolt in the bolt hole, the articulated first electric telescopic handle (33) of upper surface of shell (1), the other end of first electric telescopic handle (33) with first outer lagging (31) upper surface is articulated.

4. A high safety electric chain saw as set forth in claim 1, wherein: the second protection mechanism (4) comprises a transverse plate (41), a connecting seat (42), a limiting block (43), a rotating shaft (44), a first magnet (45), a second magnet (46), a fixing seat (47), a pulling block (48), a limiting rod (49), a spring (410) and a limiting groove (411), wherein the connecting seat (42) is fixedly connected with the front side and the rear side of the bottom of the shell (1), the rotating shaft (44) is rotatably connected between the connecting seats (42), two ends of the rotating shaft (44) penetrate through the fixing connecting seat (42) and the limiting block (43), the transverse plate (41) is fixedly connected onto the rotating shaft (44), the limiting groove (411) is formed in one side wall of the limiting block (43) far away from the transverse plate (41), a first magnet (45) is fixedly installed on the bottom wall of one end of the shell (1) close to the first handle (6), and a second magnet (46) is installed on the transverse plate (41) corresponding to the, shell (1) front side outer wall fixedly connected with fixing base (47), the through-hole has been seted up on fixing base (47), sliding connection has gag lever post (49) in the through-hole, gag lever post (49) top is connected with draws piece (48), the cover is equipped with spring (410) on gag lever post (49), the one end of spring (410) is connected draw piece (48), the other end of spring (410) is connected fixing base (47), gag lever post (49) with spacing groove (411) joint.

5. A high safety electric chain saw as set forth in claim 3, wherein: brake mechanism (5) include second electric telescopic handle (51), brake block (52) and braking arch (53), gear (14) are kept away from one side surface of motor (12) is equipped with a plurality of braking arch (53), braking arch (53) enclose into an annular, cavity (11) inner wall fixedly connected with second electric telescopic handle (51), second electric telescopic handle (51) are close to one end fixed connection brake block (52) of gear (14), brake block (52) with braking arch (53) cooperate.

6. A high safety electric chain saw as set forth in claim 5, wherein: a battery pack (15) is arranged in the shell (1).

7. A high safety electric chain saw as set forth in claim 1, wherein: the first handle (6) and the second handle (7) are both coated with sponge.

8. A high safety electric chain saw as set forth in claim 6, wherein: the input end of the switch (8) is electrically connected with the battery pack (15), and the output end of the switch (8) is electrically connected with the motor (12), the first electric telescopic rod (33) and the second electric telescopic rod (51) respectively.