CN211297751U

CN211297751U - Labor-saving garden saw

Info

Publication number: CN211297751U
Application number: CN201921956614.1U
Authority: CN
Inventors: 李欢; 朱婧
Original assignee: Zhejiang College of Construction
Current assignee: Zhejiang College of Construction
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-08-21
Anticipated expiration: 2029-11-13

Abstract

The utility model discloses a laborsaving saw in gardens, including the mount, its characterized in that: the mount, the mount upper end is equipped with the support, is equipped with the saw bit in the mount, and the saw bit passes through screw and mount fixed connection, and in the support was located to the saw bit upper end, the support rear end was equipped with rotatable handle mechanism, and the support front end was equipped with telescopic handrail mechanism, and the saw bit upper end is located to handrail mechanism lower extreme, is equipped with the laborsaving mechanism of angularly adjustable in the middle of the support, the beneficial effects of the utility model: the utility model discloses set up the fulcrum in the handle front side, when the higher branch of user of service cutting height, apply ascending power to the handle, then the saw bit front end pushes down under lever principle's effect, has changed the direction of application, has reduced the degree of difficulty of user of service application of force, has reduced intensity of labour.

Description

Labor-saving garden saw

Technical Field

The utility model belongs to the gardens field relates to the wood saw device, especially relates to a laborsaving saw in gardens.

Background

The garden saw generally comprises a handle and a saw blade, has a simple structure and a wide application range, but has the problem of difficult force application due to the fact that the handle is arranged at the rear end of the saw blade. For this reason, long-term research has been conducted, and various solutions have been proposed.

For example, the chinese patent document discloses a portable finishing wood saw [ application No.: 201620608285.1], including handle and saw bit, the saw bit passes through rivet riveting on hand, the upper portion of handle is equipped with the bellying, is equipped with two spouts in the bellying, and sliding connection has the pull rod in the spout, and the other end of pull rod is connected with the cushion, and the bottom of cushion be equipped with long banding recess and with the top cooperation of saw bit, the top of cushion is equipped with the cushion, still is equipped with lighting device on the cushion, the utility model discloses a set up a cushion at the top of handle, when the saw bit is being pressed to carpenter's master, can show the pressure that reduces the palm and receive, and then alleviate the injury to the palm, and simple structure, convenient operation, in addition, through setting up lighting device at the front end of cushion, can play the effect of auxiliary lighting when light is darker, improve the efficiency of construction.

Above-mentioned scheme is when cutting the higher branch of saw height, and the unable contact cushion of user of service reaches laborsaving effect by the cushion, has reduced the practicality.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, provide a laborsaving saw in gardens, set up the fulcrum in the handle front side, when the higher branch of user of service cutting height, apply ascending power to the handle, then the saw bit front end pushes down under lever principle's effect, has changed the direction of application, has reduced the degree of difficulty of user of service application of force, has reduced intensity of labour.

In order to achieve the above purpose, the utility model adopts the following technical proposal: this laborsaving saw in gardens includes mount, its characterized in that: the improved multifunctional saw is characterized in that a support is arranged at the upper end of the fixing frame, a saw blade is arranged in the fixing frame and fixedly connected with the fixing frame through a screw, the upper end of the saw blade is arranged in the support, a rotatable handle mechanism is arranged at the rear end of the support, a telescopic handrail mechanism is arranged at the front end of the support, the lower end of the handrail mechanism is arranged at the upper end of the saw blade, and a labor-saving mechanism with an adjustable angle is arranged in the middle of.

The utility model discloses creatively designed laborsaving mechanism increases the fulcrum through setting up the horizontal pole in the handle front side, when the higher branch of user of service cutting height to the horizontal pole is exerted ascending power to the handle as the fulcrum, then pushes down the saw bit front end under lever principle's effect, has changed the direction of application of force, has reduced the degree of difficulty of user of service application of force, has reduced intensity of labour.

In foretell laborsaving saw in gardens, handle mechanism includes the handle, the support bottom is equipped with the recess, be equipped with the connecting rod in the recess, the handle upper end is equipped with the connecting hole, the handle upper end is located in the recess, the connecting rod is located in the connecting hole, recess one side is equipped with the cavity, be equipped with the locking block in the cavity, the locking block with be equipped with first spring between the cavity inner wall, the handle top is equipped with a plurality of evenly distributed's draw-in groove, the locking block outer end is located in the draw-in groove, the locking block inner is equipped with the push pedal, the push pedal upper end extends to the support upside.

In the labor-saving garden saw, the handrail mechanism comprises a first telescopic rod, the first telescopic rod is arranged in the support, a second telescopic rod is arranged in the first telescopic rod, the lower end of the second telescopic rod is arranged at the upper end of the saw blade, and a handrail assembly is arranged at the front end of the second telescopic rod.

In foretell laborsaving saw in gardens, the handrail subassembly includes the handrail frame, the inboard both ends of handrail frame respectively are equipped with branch, be equipped with the fixed block in the middle of the branch, the fixed block upper end with be equipped with the second spring between the handrail frame inner wall, the fixed block bottom is equipped with the friction plate, be equipped with the movable block in the middle of the handrail frame, the fixed block upper end with the contact of the movable block outside, be equipped with the spacing groove in the middle of the movable block, handrail frame front end is equipped with the stopper and locates the spacing inslot, the movable block upper end extends to handrail frame upside and is equipped with the cushion.

Labor-saving mechanism includes the horizontal pole, the horizontal pole is located the support upside, the support both sides respectively are equipped with the straight flute, the horizontal pole both ends respectively are equipped with the dead lever, the dead lever lower extreme is located in the straight flute, the straight flute rear side is equipped with the spout, the spout extends to the straight flute lower extreme, be equipped with the depression bar in the middle of the spout, the depression bar both ends respectively are equipped with the connecting plate, the connecting plate extends to the spout lower extreme is equipped with the fixed plate, the fixed plate upper end is located the straight flute lower extreme and with the contact of dead lever lower extreme, the spout both sides respectively are equipped with the groove that resets, the connecting plate rear end is equipped with the board that resets and locates reset the inslot, reset the board with reset spring is.

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

1. the utility model provides a handle mechanism increases whole length through rotatory handle to cut the higher branch of saw, when the handle is rotatory to the horizontality, hold the handle bottom in order to reach the distance between extension saw bit and the arm, improved the practicality, die the handle through the locking piece lock simultaneously, prevent that the handle from rotating by oneself because of the atress is too big in cutting process, improved stability.

2. The utility model provides a handrail mechanism is through setting up the fulcrum in the saw bit upper end, and convenient to use personnel exert pressure at the saw bit front end simultaneously in cutting process, can effectively reduce the application of force degree of difficulty, reduce intensity of labour, and handrail frame just can fix on the saw bit when pressing, prevents that handrail frame from sliding the influence cutting because of the atress changes when pressing, has improved stability, can remove handrail frame at will when not using simultaneously, has improved the convenience.

3. The utility model provides a laborsaving mechanism increases the fulcrum through set up the horizontal pole in the handle front side, when the higher branch of user of service cutting height to the horizontal pole is exerted ascending power to the handle as the fulcrum, then the saw bit front end pushes down under lever principle's effect, has changed the direction of application, has reduced the degree of difficulty of user's application of force, has reduced intensity of labour.

Drawings

Fig. 1 is a front view of the garden labor-saving saw provided by the utility model.

Fig. 2 is a rear view of the garden labor-saving saw provided by the utility model.

Fig. 3 is a partial sectional view of a section a of the garden labor-saving saw provided by the utility model.

Fig. 4 is a partial sectional view of a B section of the garden labor-saving saw provided by the utility model.

Fig. 5 is a partial sectional view of a B-section of the garden labor-saving saw provided by the utility model.

Fig. 6 is a partial sectional view of a C-section of the garden labor-saving saw provided by the utility model.

In the figure, 1, a fixed frame; 2. a support; 3. a saw blade; 4. a screw; 10. a handle mechanism; 11. a handle; 12. a groove; 13. a connecting rod; 14. connecting holes; 15. a cavity; 16. a locking block; 17. a first spring; 18. a card slot; 19. pushing the plate; 20. an armrest mechanism; 21. an armrest mechanism; 22. a second telescopic rod; 23. a handrail frame; 24. a fixed block; 25. a strut; 26. a second spring; 27. a friction plate; 28. a moving block; 29. a limiting groove; 30. a limiting block; 31. a soft cushion; 40. a labor-saving mechanism; 41. a cross bar; 42. fixing the rod; 43. a straight groove; 44. (ii) a 45. A chute; 46. a pressure lever; 47. a connecting plate; 48. a fixing plate; 49. a reset groove; 50. a reset plate; 51. a return spring.

Detailed Description

As shown in fig. 1 and 2, the utility model discloses laborsaving saw in gardens includes mount 1, and 1 upper end of mount is equipped with support 2, is equipped with saw bit 3 in the mount 1, and saw bit 3 passes through screw 4 and 1 fixed connection of mount, and in support 2 was located to 3 upper ends of saw bit, 2 rear ends of support were equipped with

rotatable handle mechanism

10, and 2 front ends of support are equipped with

telescopic handrail mechanism

20, and 3 upper ends of saw bit are located to handrail mechanism 20 lower extreme, are equipped with the laborsaving mechanism 40 of angularly adjustable in the middle of the support 2.

As shown in fig. 1 to 3, the handle mechanism 10 includes a handle 11, the handle 11 is L-shaped, a groove 12 is formed at the bottom end of the support 2, a connecting rod 13 is arranged in the groove 12, a connecting hole 14 is formed at the upper end of the handle 11, the upper end of the handle 11 is arranged in the groove 12, the connecting rod 13 is arranged in the connecting hole 14, the connecting rod 13 is rotatably connected with the connecting hole 14 through clearance fit, a cavity 15 is formed in the front side of the groove 12, a locking block 16 is arranged in the cavity 15, a first spring 17 is arranged between the locking block 16 and the inner wall of the cavity 15, at least two clamping grooves 18 which are uniformly distributed are formed at the top end of the handle 11, the outer end of the locking block 16 is arranged in the clamping groove 18, a pushing plate 19 is arranged at the inner end of the locking block 16, the upper end of the pushing plate 19. Handle mechanism 10 increases overall length through rotatory handle 11 to the higher branch of cut saw, when handle 11 rotated to the horizontality, held handle 11 bottom in order to reach the distance between extension saw bit 3 and the arm, improved the practicality, deadly handle 11 through locking piece 16 lock simultaneously, prevent that handle 11 from rotating by oneself because of the atress is too big in the cutting process, improved stability.

As shown in fig. 1, 2, 4 and 5, the handrail mechanism 20 includes a first telescopic rod 21, the first telescopic rod 21 is disposed in the support 2, the first telescopic rod 21 and the support 2 are in sliding fit, a second telescopic rod 22 is disposed in the first telescopic rod 21, the second telescopic rod 22 and the first telescopic rod 21 are in sliding fit, the lower end of the second telescopic rod 22 is disposed at the upper end of the saw blade 3 and attached to each other, and a handrail assembly is disposed at the front end of the second telescopic rod 22.

The handrail component comprises a handrail frame 23, two ends of the inner side of the handrail frame 23 are respectively provided with a support rod 25, a fixed block 24 is arranged in the middle of the support rod 25 and is in clearance fit with the support rod 25 in a rotatable mode, a second spring 26 is arranged between the upper end of the fixed block 24 and the inner wall of the handrail frame 23, the bottom end of the fixed block 24 is provided with a friction plate 27, the outer end of the friction plate 27 is made of a material with large friction force, a moving block 28 is arranged in the middle of the handrail frame 23, the upper end of the fixed block 24 is in contact with the outer side of the moving block 28, a limit groove 29 is arranged in the middle of the moving block 28, the front end of the handrail frame 23 is provided with a limit block 30 and.

When the moving block 28 moves downwards, the lower end of the moving block 28 pushes the upper end of the fixed block 24 to deflect outwards, and the friction plate 27 is in contact with the outer end of the saw blade 3. The handrail mechanism 20 is through setting up the fulcrum in saw bit 3 upper end, and the user of being convenient for exerts pressure at the saw bit 3 front end simultaneously in the cutting process, can effectively reduce the application of force degree of difficulty, reduces intensity of labour, and handrail frame 23 only just can fix on saw bit 3 when pressing, prevents that handrail frame 23 from sliding because of the atress changes when pressing and influencing the cutting, has improved stability, can remove handrail frame 23 at will when not using simultaneously, has improved the convenience.

As shown in fig. 2 and 6, the labor saving mechanism 40 includes a cross bar 41, the cross bar 41 is disposed on the upper side of the support 2, straight grooves 43 are disposed on two sides of the support 2, fixing bars 42 are disposed on two ends of the cross bar 41, lower ends of the fixing bars 42 are disposed in the straight grooves 43, the fixing bars 42 are in sliding fit with the straight grooves 43, sliding grooves 45 are disposed on the rear sides of the straight grooves 43, the sliding grooves 45 extend to the lower ends of the straight grooves 43, pressing bars 46 are disposed in the middle of the sliding grooves 45, connecting plates 47 are disposed on two ends of the pressing bars 46, the connecting plates 47 are in sliding fit with the sliding grooves 45, the connecting plates 47 extend to the lower ends of the sliding grooves 45 and are provided with fixing plates 48, the upper ends of the fixing plates 48 are disposed at the lower ends of the straight grooves 43 and contact with the lower ends of the fixing bars 42, the upper ends of the fixing plates 48 are made of a material with large. The labor-saving mechanism 40 is provided with the cross rod 41 on the front side of the handle 11 to increase a fulcrum, when a user cuts a branch with a higher height, the cross rod 41 is used as the fulcrum to apply upward force to the handle 11, the front end of the saw blade 3 is pressed downwards under the action of a lever principle, the direction of the applied force is changed, the difficulty of the force application of the user is reduced, and the labor intensity is reduced.

The utility model discloses a concrete operation mode of specific embodiment does: when a user presses the soft pad 31 and applies force to perform cutting action, the soft pad 31 is stressed to drive the moving block 28 to move downwards, the moving block 28 pushes the upper end of the fixed block 24 at the outer end to deflect outwards, the lower end of the fixed block 24 deflects inwards, the front end of the friction plate 27 is attached to the outer end of the saw blade 3, the handrail frame 23 is fixed on the saw blade 3 under the action of friction force between the friction plate 27 and the saw blade 3, the handle 11 can be unlocked by pushing the push plate 19 forwards, the push plate 19 reaches the locking block 16 to move forwards in the pushing process, the rear end of the locking block 16 is separated from the clamping groove 18, the handle 11 can be rotated, when the position of the cross rod 41 needs to be adjusted, the pressing pressure rod 46 drives the fixed plate 48 to move downwards through the connecting plate 47, and the upper end of the fixed plate 48 is separated from the lower end.

The specific embodiments described herein are merely illustrative of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although terms such as fixed frame, support, push plate, connecting rod, connecting hole, locking block, handrail frame, fixed block, friction block, moving block, connecting plate, etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.

Claims

1. The utility model provides a laborsaving saw in gardens, includes mount (1), its characterized in that: mount (1) upper end is equipped with support (2), be equipped with saw bit (3) in mount (1), saw bit (3) through screw (4) with mount (1) fixed connection, saw bit (3) upper end is located in support (2), support (2) rear end is equipped with rotatable handle mechanism (10), support (2) front end is equipped with telescopic handrail mechanism (20), handrail mechanism (20) lower extreme is located saw bit (3) upper end, be equipped with the laborsaving mechanism (40) of angularly adjustable in the middle of support (2).

2. The garden labor-saving saw according to claim 1, characterized in that: the handle mechanism (10) comprises a handle (11), the bottom end of the bracket (2) is provided with a groove (12), a connecting rod (13) is arranged in the groove (12), a connecting hole (14) is arranged at the upper end of the handle (11), the upper end of the handle (11) is arranged in the groove (12), the connecting rod (13) is arranged in the connecting hole (14), a cavity (15) is arranged at one side of the groove (12), a locking block (16) is arranged in the cavity (15), a first spring (17) is arranged between the locking block (16) and the inner wall of the cavity (15), a plurality of clamping grooves (18) which are uniformly distributed are arranged at the top end of the handle (11), the outer ends of the locking blocks (16) are arranged in the clamping grooves (18), the inner end of the locking block (16) is provided with a push plate (19), and the upper end of the push plate (19) extends to the upper side of the support (2).

3. The garden labor-saving saw according to claim 1, characterized in that: handrail mechanism (20) include first telescopic link (21), first telescopic link (21) are located in support (2), be equipped with second telescopic link (22) in first telescopic link (21), second telescopic link (22) lower extreme is located saw bit (3) upper end, second telescopic link (22) front end is equipped with handrail component.

4. The garden labor-saving saw according to claim 3, characterized in that: the handrail subassembly includes handrail frame (23), handrail frame (23) inboard both ends respectively are equipped with branch (25), be equipped with fixed block (24) in the middle of branch (25), fixed block (24) upper end with be equipped with second spring (26) between handrail frame (23) inner wall, fixed block (24) bottom is equipped with friction plate (27), be equipped with movable block (28) in the middle of handrail frame (23), fixed block (24) upper end with the contact of movable block (28) outside, be equipped with spacing groove (29) in the middle of movable block (28), handrail frame (23) front end is equipped with stopper (30) and locates in spacing groove (29), movable block (28) upper end extends to handrail frame (23) upside and is equipped with cushion (31).

5. The garden labor-saving saw according to claim 4, characterized in that: when the moving block (28) moves downwards, the lower end of the moving block (28) pushes the upper end of the fixed block (24) to deflect outwards, and the friction plate (27) is in contact with the outer end of the saw blade (3).

6. The garden labor-saving saw according to claim 1, characterized in that: the labor-saving mechanism (40) comprises a cross rod (41), the cross rod (41) is arranged on the upper side of the support (2), straight grooves (43) are respectively arranged on two sides of the support (2), fixing rods (42) are respectively arranged on two ends of the cross rod (41), the lower ends of the fixing rods (42) are arranged in the straight grooves (43), sliding grooves (45) are arranged on the rear sides of the straight grooves (43), the sliding grooves (45) extend to the lower ends of the straight grooves (43), pressing rods (46) are arranged in the middle of the sliding grooves (45), connecting plates (47) are respectively arranged on two ends of the pressing rods (46), the connecting plates (47) extend to the lower ends of the sliding grooves (45) and are provided with fixing plates (48), the upper ends of the fixing plates (48) are arranged at the lower ends of the straight grooves (43) and are in contact with the lower ends of the fixing rods (42), reset grooves (49) are respectively arranged on two sides of the sliding grooves (45), reset plates (50, and a return spring (51) is arranged between the return plate (50) and the inner wall of the return groove (49).