CN215346007U

CN215346007U - Extensible small chain saw

Info

Publication number: CN215346007U
Application number: CN202121695294.6U
Authority: CN
Inventors: 赵亮; 余长林; 李晓中
Original assignee: CIXI CITY BEST POWER TOOLS CO LTD
Current assignee: CIXI CITY BEST POWER TOOLS CO LTD
Priority date: 2021-07-24
Filing date: 2021-07-24
Publication date: 2021-12-31
Anticipated expiration: 2031-07-24

Abstract

The utility model discloses a small extensible chain saw, which comprises a chain saw shell, wherein a detachable rod-shaped assembly is arranged on the rear end surface of the chain saw shell, the rod-shaped assembly comprises a connecting shell and a rod piece arranged in the connecting shell, a fixing piece is horizontally arranged on the connecting shell, and sliding grooves are formed in the left end and the right end of the connecting shell; the chain saw shell is close to and offers the fixed slot that supplies the joint shell to peg graft and the spliced eye that supplies the mounting to peg graft on the terminal surface of shaft-like subassembly, both ends all are provided with to slide about the fixed slot peg graft in the joint piece of spout. The present application has the effect of increasing the distance range over which the chain saw operates.

Description

Extensible small chain saw

Technical Field

The utility model relates to the field of portable machines and tools, in particular to a chain saw capable of being lengthened.

Background

The existing general chain saw comprises a chain saw main body and a chain saw shell, wherein a handle with a chain saw press switch is arranged on the chain saw shell, and when a worker uses the chain saw, the worker holds the handle and presses the switch to operate. The chain saw is of a fixed length and can be operated over a range of heights while being used by an operator.

In the above related art, when the worker needs to work higher with the chain saw, for example: the chain saw is short in length, so that workers need to run a large safety risk to finish a cutting task by using tools such as ladders, and the inventor thinks that the chain saw has the defect of small working distance range.

SUMMERY OF THE UTILITY MODEL

In order to solve the defect that the working distance range of the chain saw is small in the prior art, the application provides a chain saw capable of being lengthened.

The application provides a can prolong small chain saw adopts following technical scheme:

a small extensible chain saw comprises a chain saw shell, wherein a detachable rod-shaped assembly is arranged on the rear end face of the chain saw shell, the rod-shaped assembly comprises a connecting shell, a fixing piece penetrates through the connecting shell, and sliding grooves are formed in the left end and the right end of the connecting shell; the chain saw shell is close to set up on the terminal surface of connecting the shell and supply the fixed slot that the connecting shell pegged graft and the spliced eye that supplies the mounting is pegged graft, both ends all are provided with to slide about the fixed slot peg graft in the joint piece of spout.

Through adopting above-mentioned technical scheme, when needs are connected shaft-like subassembly on the chain saw casing, need at first connect the shell and remove to being located the fixed slot directly over, slide the joint piece again and peg graft in the spout to realized the preliminary location of connecting the shell on the chain saw casing, simultaneously, with mounting fixed connection in the spliced eye, in order to realize the further location to connecting the shell, the fixed connection of connecting the shell has improved the high range of chain saw main part work. On the other hand, when the connecting shell needs to be disassembled, the fixing piece needs to be taken out firstly, then force is applied to the connecting shell, and the connecting shell is lifted to be separated from the chain saw shell, so that the connecting shell can be assembled and disassembled at any time, and the purpose that the working height range of the chain saw main body can be changed at any time is improved.

Optionally, the fixing element includes a fixing rod inserted into the insertion hole and having a thread at a middle section, a spring sleeved on the fixing rod, and a limiting element disposed at an end of the spring away from the insertion hole.

Through adopting above-mentioned technical scheme, when needing to peg graft the mounting in order to realize the further fixed of connecting shell and chain saw casing in the spliced eye, need at first insert the dead lever front end, in the threaded section precession spliced eye with the dead lever again, and set up the locating part on the dead lever and remove towards the direction that the dead lever removed, the elasticity towards locating part indentation opposite direction is applyed for the locating part to the spring of compressed simultaneously, when the mounting is pulled down to needs, the staff as long as rotate out the threaded section of dead lever, and then, the dead lever will directly pop out under the elastic force effect, dismantle the mounting for the staff and provide convenience and improved work efficiency.

Optionally, the limiting part comprises a baffle plate which is sleeved on the fixing rod and is abutted against one end, far away from the insertion hole, of the spring, and a limiting plate which is abutted against one end, far away from the spring, of the baffle plate, and an annular groove for clamping the limiting plate is formed in the outer wall of the fixing rod.

Through adopting above-mentioned technical scheme, when the staff inserted the mounting in the spliced eye gradually, because the ring channel has restricted the removal of limiting plate on the dead lever to support the spring of tightly on one side of the baffle and compress gradually, the spring has applyed the elasticity with dead lever moving direction opposite direction to the baffle simultaneously, and then the one end of limiting plate supports the lateral wall tightly at the ring channel, thereby applyed the elasticity with dead lever moving direction opposite direction to the limiting plate dead lever. When the fixing piece needs to be screwed out by the worker, the thread section of the fixing rod is firstly screwed out, and then the fixing rod can be directly popped out under the action of the elastic force, so that the efficiency of mounting and dismounting the fixing piece by the worker is improved.

Optionally, a knob is arranged at one end, far away from the insertion hole, of the fixing rod.

Through adopting above-mentioned technical scheme, when the staff need install or pull down the dead lever, need the application of force to rotate the knob to the dead lever of screwing out, the setting up of knob makes the staff need not utilize appurtenance, can accomplish the installation and the dismantlement to the mounting with the hand, has improved the efficiency of installation and dismantlement dead lever promptly.

Optionally, one end of the connecting shell close to the chain saw shell is provided with a step block, so

And the chain saw shell is provided with a positioning groove for clamping the step block.

Through adopting above-mentioned technical scheme, when the connection shell is installed on the chain saw casing, the lower terminal surface of ladder piece supports tightly in order to restrict the vertical position of connecting the shell with the lower terminal surface of constant head tank, simultaneously, has realized that the position of the vertical direction of mounting and spliced eye corresponds, has made things convenient for the staff to insert the spliced eye with the mounting, has improved the convenience of the fixed chain saw casing of staff simultaneously.

Optionally, the connecting shell comprises a first connecting shell and is symmetrically arranged with the first connecting shell

The first connecting shell is provided with a first mounting groove at one end far away from the chain saw shell, and the second connecting shell is provided with a second mounting groove at one end far away from the chain saw shell.

Through adopting above-mentioned technical scheme, when needing to connect the member in the connection shell, at first place the member and realize preliminary location in the first mounting groove on first connection shell, it can to close second connection shell symmetry lid on first connection shell and fixed connection again. The split design of the connecting shell provides convenience for the replacement of the rod piece in the future.

Optionally, the knob includes the confession the circle piece that the dead lever was pegged graft circle piece week side is provided with a plurality ofly and tangent in the plectrum of circle piece.

By adopting the technical scheme, a common knob is usually controlled by relative rotation of two fingers, and because the operable space of the position where the knob is located is smaller, the knob with the shifting sheet is arranged, when a worker rotates the knob, the rotation of the knob can be realized by only using one finger to stir one end of the shifting sheet, and the worker can conveniently rotate the knob.

Optionally, the inner wall of the insertion hole is provided with a threaded sleeve.

Through adopting above-mentioned technical scheme, the setting of thread bush in the spliced eye for the dead lever when pegging graft, the dead lever through with thread bush be connected and realize with the fixed connection of spliced eye, if the dead lever is direct pegged graft in the spliced eye, and long-term back-out precession, the screw thread in the spliced eye can take place to warp or damage, then the setting of thread bush has reduced the possibility that the spliced eye damaged the deformation.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the fixed slot sets up on the terminal surface that the chain saw casing is close to the connection shell, and the both sides of fixed slot are provided with the joint piece, are provided with the spout spare that supplies the joint piece to peg graft to slide on the connection shell, and the connection of joint piece and spout has realized the location of connecting shell and chain saw casing at preliminary.

2. The fixing piece is inserted in the end face, close to the chain saw shell, of the connecting shell in a penetrating mode, the chain saw shell is provided with the inserting hole for the fixing piece to be inserted, and the fixing piece is fixedly connected with the inserting hole to further position and fix the connecting shell and the chain saw shell.

3. The constant head tank is seted up on the chain saw casing of fixed slot below, is provided with the ladder piece that supports terminal surface under the constant head tank on the connection shell to realize chain saw casing and connection shell and fix a position in the position of vertical direction, peg graft in the work of spliced eye for the mounting and provide convenience.

Drawings

FIG. 1 is a block diagram of an extendable small chain saw.

Fig. 2 is an exploded view of a rod assembly.

Fig. 3 is a block diagram of a rod assembly.

Fig. 4 is a connection diagram of the connection case and the chainsaw case.

Description of reference numerals: 1. a chain saw body; 2. a chainsaw housing; 3. a rod-like member; 4. a connecting shell; 5. a rod member; 6. mounting grooves; 7. a first mounting groove; 8. a second mounting groove; 9. mounting holes; 10. a first reinforcing rib; 11. a first connecting shell; 12. a second connection housing; 13. a through hole; 14. a chute; 15. a step block; 16. a fixing member; 17. fixing the rod; 18. a spring; 19. a baffle plate; 20. a limiting plate; 21. an annular groove; 22. a knob; 23. a round block; 24. a shifting sheet; 25. a clamping block; 26. inserting holes; 27. positioning a groove; 28. a threaded sleeve; 29. a second reinforcing rib; 30. an open slot; 31. fixing grooves; 32. and a limiting member.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a small chain saw capable of being lengthened. Referring to fig. 1, the extensible small chain saw includes a chain saw main body 1 and a chain saw housing 2 connected to the chain saw main body 1 through screws, a rod-shaped assembly 3 is detachably connected to one end of the chain saw housing 2, and the fixed connection of the rod-shaped assembly 3 enables a worker to hold the end portion of the rod-shaped assembly 3 away from the chain saw housing 2 to work, so that the working distance range of the extensible small chain saw is enlarged.

Referring to fig. 2 and 3, detachable shaft assembly 3 includes connecting shell 4, pegs graft at the member 5 of connecting shell 4 one end, and connecting shell 4 is close to the one end of member 5 and has offered the mounting groove 6 that supplies member 5 to peg graft, has offered two mounting holes 9 on the outer wall of connecting shell 4, and connecting shell 4 side an organic whole has moulded plastics first strengthening rib 10 to strengthen connecting shell 4's structural strength.

Referring to fig. 2 and 3, the connecting shell 4 has two sides far away from one end of the rod piece 5, and the chain saw housing 2 has two clamping blocks 25 inserted in the sliding grooves 14 in a sliding manner and integrally molded on the end surface near the connecting shell 4, and the connecting shell 4 is connected with the clamping blocks 25 in a sliding manner, so that the connecting shell 4 can be inserted and slid on the chain saw housing 2, and the primary positioning of the connecting shell 4 on the chain saw housing 2 is realized.

The fixing piece 16 is inserted and connected on one end face of the connecting shell 4 far away from the rod piece 5, an insertion hole 26 for inserting and connecting the fixing piece 16 is further formed in one end face of the chain saw shell 2 near the connecting shell 4, and the fixing piece 16 and the insertion hole 26 are connected and fixed, so that the chain saw shell 2 is further fixed by the connecting shell 4.

Referring to fig. 2 and 3, a step block 15 is integrally molded at a lower end of an end surface of the connecting shell 4 far away from the rod 5, a positioning groove 27 is further formed in an end surface of the chain saw shell 2 close to the connecting shell 4, the lower end surface of the step block 15 abuts against the lower end surface of the step block 27, so that the position of the chain saw shell 2 and the connecting shell 4 in the vertical direction is positioned, and convenience is provided for accurately inserting the fixing piece 16 into the insertion hole 26.

The threaded sleeve 28 is embedded in the inner wall of the insertion hole 26, and the direct connection between the threaded sleeve 28 and the fixing piece 16 reduces the damage of the fixing piece 16 to the insertion hole 26. The two sides of the fixing groove 31 of the chain saw housing 2 are also integrally provided with the second reinforcing ribs 29 in an injection molding mode, so that the structural strength of the chain saw housing 2 close to one end of the connecting shell 4 is enhanced, and the stability of the fixed connection between the chain saw housing 2 and the connecting shell 4 is improved.

Referring to fig. 3, the fixing element 16 includes a fixing rod 17 inserted into the insertion hole 26, a spring 18 sleeved on the fixing rod 17, and a limiting element 32 sleeved on the fixing rod 17. The stopper 32 includes a stopper plate 19 and a stopper plate 20.

The fixing rod 16 is cylindrical and provided with a threaded section at the middle section, when a worker needs to detach the fixing rod 16, the threaded section of the fixing rod 16 needs to be screwed out, and the fixing rod 16 can be directly popped out under the elastic force of the spring 18.

The one end of keeping away from the spliced eye of dead lever is connected with the knob, and knob 22 includes that circle piece 23 and integrative design are in 23 week sides of circle piece and tangent plectrum 24 in 23 outer walls of circle piece, and the staff can stir the plectrum through a finger and realize the rotary operation to knob 22 under the less condition of operating space to conveniently accomplish the installation and take out of dead lever 17.

The middle section of dead lever 17 has the screw thread and dead lever 17 still offers the ring channel 21 that supplies limiting plate 20 joint, supports the limiting plate 20 joint in the ring channel 21 on the terminal surface of keeping away from plug-in hole 26 at baffle 19 tightly, and has restricted the relative motion of limiting plate 20 on dead lever 17, then one end support tightly on connecting shell 4 inner wall and the other end support tightly the spring 18 compression on baffle 19 terminal surface. The limiting plate 20 is provided with a through hole 13 for the insertion of the fixing piece 16 and an open groove 30 communicated with the through hole 13, and a worker can apply force on the limiting plate 20 to clamp the limiting plate 20 in the annular groove 21.

Referring to fig. 4, the connection shell 4 includes a first connection shell 11 and a second connection shell 12 symmetrically connected to the first connection shell 11 by four screws, and the split design of the connection shell 4 facilitates the disassembly and replacement of the rod 5 in the future. Mounting groove 6 is including offering first mounting groove 7 on first connecting shell 11, offering second mounting groove 8 on second connecting shell 12, and member 5 is at first tentatively fixed a position on first mounting groove 7, and 8 symmetry laminatings of second mounting groove are on member 5 outer wall again to realize the preliminary location of mounting groove 6 on connecting shell 4 to member 5. The rod 5 is a hollow rod, a through hole 13 connected with the mounting hole 9 through a screw is formed in the outer wall of the periphery of the rod 5, and the screw penetrates through the mounting hole 9 and the through hole 13 in sequence to realize that the rod 5 is fixedly connected to the connecting shell 4.

The implementation principle of the extensible small chain saw is as follows: when the connecting shell 4 needs to be installed on the chain saw housing 2, the connecting shell 4 needs to be moved to a position right above the fixing groove 31, the clamping block 25 is slidably inserted into the sliding groove 14 until the lower end face of the step block 15 abuts against the lower end face of the positioning groove 27, preliminary positioning of the connecting shell 4 on the chain saw housing 2 is achieved, the vertical positions of the inserting hole 26 and the fixing piece 16 correspond to each other, and then the fixing piece 16 is fixedly connected into the inserting hole 26, so that the connecting shell 4 is further positioned. On the other hand, when the attachment case 4 needs to be detached, the fixing member 16 needs to be removed first, and the attachment case 4 needs to be lifted up to be detached from the chainsaw housing 2.

When the rod 5 needs to be installed and replaced, the rod 5 needs to be abutted against the first installation groove 7, the through hole 13 is communicated with the installation hole 9, the second connection shell 12 is installed at a position symmetrical to the first connection shell 11, and finally, the plurality of screws are screwed down to realize the installation and replacement of the rod 5.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An extendable small chain saw comprising a chain saw housing (2), characterized in that: a detachable rod-shaped assembly (3) is arranged on the rear end face of the chain saw shell (2), the rod-shaped assembly (3) comprises a connecting shell (4), a fixing piece (16) penetrates through the connecting shell (4), and sliding grooves (14) are formed in the left end and the right end of the connecting shell (4);

the chain saw shell (2) is close to the end face of the connecting shell (4) and is provided with a fixing groove (31) for the connecting shell (4) to be connected in an inserting mode and an inserting hole (26) for the fixing piece (16) to be connected in an inserting mode, and clamping blocks (25) which are slidably inserted into the sliding grooves (14) are arranged at the left end and the right end of the fixing groove (31).

2. An extendable small chain saw as defined in claim 1, wherein: the fixing piece (16) comprises a fixing rod (17) which is inserted into the insertion hole (26) in a plugging way, the middle section of the fixing rod is provided with threads, a spring (18) sleeved on the fixing rod (17), and a limiting piece (32) arranged at one end, far away from the insertion hole (26), of the spring (18).

3. An extendable small chain saw as defined in claim 2, wherein: the limiting part (32) comprises a baffle (19) which is sleeved on the fixing rod (17) and is abutted against one end, far away from the insertion hole (26), of the spring (18), and a limiting plate (20) which is abutted against one end, far away from the spring (18), of the baffle (19), and an annular groove (21) for clamping the limiting plate (20) is formed in the outer wall of the fixing rod (17).

4. An extendable small chain saw as defined in claim 2, wherein: and a knob (22) is arranged at one end of the fixing rod (17) far away from the inserting hole (26).

5. An extendable small chain saw as defined in claim 1, wherein: the connecting shell (4) is close to one end of the chain saw shell (2) is provided with a step block (15), and a positioning groove (27) for clamping the step block (15) is formed in the chain saw shell (2).

6. An extendable small chain saw as defined in claim 1, wherein: the connecting shell (4) comprises a first connecting shell (11) and a second connecting shell (12) which is symmetrically arranged with the first connecting shell (11), a first mounting groove (7) is formed in one end, far away from the chain saw shell (2), of the first connecting shell (11), and a second mounting groove (8) is formed in one end, far away from the chain saw shell (2), of the second connecting shell (12).

7. An extendable small chain saw as defined in claim 4, wherein: the knob (22) comprises a round block (23) for the fixing rod (17) to be inserted, and a plurality of poking pieces (24) tangent to the round block (23) are arranged on the periphery of the round block (23).

8. An extendable small chain saw as defined in claim 1, wherein: and a threaded sleeve (28) is arranged in the inner wall of the plug hole (26).