CN210050155U

CN210050155U - A quick adjustable telescopic link structure for garden instrument

Info

Publication number: CN210050155U
Application number: CN201920407209.8U
Authority: CN
Inventors: 程蓓; 洪威博
Original assignee: NINGBO CHEERY GARDEN TOOLS Co Ltd
Current assignee: NINGBO CHEERY GARDEN TOOLS Co Ltd
Priority date: 2019-03-28
Filing date: 2019-03-28
Publication date: 2020-02-11
Anticipated expiration: 2029-03-28

Abstract

The utility model discloses a quick adjustable telescopic rod structure for garden tools, which comprises a lower telescopic rod, wherein an upper telescopic rod is inserted in the lower telescopic rod; a fastening device is arranged between the upper telescopic rod and the lower telescopic rod and comprises a fixing sleeve and a locking sleeve, the fixing sleeve is fixedly connected to the outer wall of the lower telescopic rod, and the locking sleeve is sleeved on the outer wall of the upper telescopic rod; the locking sleeve is provided with a communicating hole, and a pressing block is arranged in the communicating hole; the pressing block is abutted against the side wall of the upper telescopic rod; the locking sleeve is rotationally connected with a wrench pressing plate; the inner wall of the locking sleeve is provided with a propping surface, two sides of the propping surface are provided with guide surfaces, and the propping surface and the guide surfaces are matched with the side wall of the upper telescopic rod in a propping manner. The utility model has the advantages of it is following and effect: the novel mechanical structure is utilized, the fastening device is adopted, the length of the telescopic rod can be adjusted at will, the telescopic rod is convenient, rapid and easy to control, and the upper telescopic rod is not easy to deform; the pressing block is provided with a groove, so that deformation is increased, and the pressing effect is good; and the installation is more stable by adopting the staggered installation holes.

Description

A quick adjustable telescopic link structure for garden instrument

Technical Field

The utility model relates to a gardens clipper technical field, in particular to a quick adjustable telescopic rod structure for garden instrument.

Background

At present can use horticulture instrument frequently in the horticulture construction, plant is pruned to very big convenience, uses the branches of tall trees instrument to cut usually in the air of height, and common branches of tall trees instrument comprises two telescopic links that cup joint together, and the upper end sets up the tool bit, and the branches of tall trees instrument is vertical upwards to lift up alright cut the branches of tall trees during the use.

The utility model provides a current structure is adjusted to telescopic link, including lower telescopic link and last telescopic link, lower telescopic link is cavity, and the lower extreme of going up the telescopic link inserts in lower telescopic link, lower telescopic link is provided with the lock sleeve with last telescopic link grafting department, lock sleeve fixed connection is in telescopic link top lateral wall down, and lock sleeve and last telescopic link clearance fit, the breach has been seted up along the lock sleeve axial to the lateral wall that the lock sleeve is located telescopic link department, the both sides of breach are provided with the lug, the locking hole has all been seted up in the lug, locking hole female connection has adjusting bolt. When adjusting the relative length between telescopic link and the lower telescopic link, unscrew adjusting bolt, the lug loses behind adjusting bolt's the fastening effect, the breach clearance increases, make the clearance increase between lock sleeve inner wall and the last telescopic link, thereby it can slide to go up the telescopic link relative lower telescopic link, and then can adjust length, adjust accomplish the back, with adjusting bolt tighten again can, adjusting bolt screws the back lug and is close to relatively and makes the breach clearance diminish, thereby the lock sleeve inner wall is hugged closely again with last telescopic link.

However, the telescopic rod adjusting structure has the following disadvantages: in flexible adjustment process, if adjusting bolt is rotatory too tightly, then make the telescopic link take place deformation easily, if adjusting bolt rotates the pine, then locking effect is relatively poor, the problem that the regulation degree is difficult to control when having the regulation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a quick adjustable telescopic link structure for garden instrument adopts the briquetting to support the telescopic link and realizes locking on tight face, the spigot surface, has the effect of adjusting convenience, easy control.

The above technical purpose of the present invention can be achieved by the following technical solutions: a quick adjustable telescopic rod structure for garden tools comprises a lower telescopic rod, an upper telescopic rod is movably inserted into the top end of the lower telescopic rod, a fastening device is arranged between the upper telescopic rod and the lower telescopic rod, the fastening device comprises a fixing sleeve and a locking sleeve, the fixing sleeve and the locking sleeve are integrally formed, the fixing sleeve is fixedly connected to the outer wall of the lower telescopic rod, the locking sleeve is sleeved on the outer wall of the upper telescopic rod, and the locking sleeve is in clearance fit with the upper telescopic rod; the side wall of the locking sleeve is provided with a communicating hole, a pressing block is movably arranged in the communicating hole, and the pressing block abuts against the side wall of the upper telescopic rod; the locking sleeve is rotatably connected with a wrench pressing plate for driving the pressing block to lock the upper telescopic rod; the inner wall of the locking sleeve is provided with a propping surface opposite to the communicating hole, two sides of the propping surface are provided with guide surfaces, and the propping surface and the guide surfaces are matched with the side wall of the upper telescopic rod in a propping manner.

Through adopting above-mentioned technical scheme, when adjusting telescopic link length, pull earlier to keeping away from the lock sleeve lateral wall and pull the clamp plate, make the briquetting reduce gradually to the power of supporting of last telescopic link, can stretch out or insert lower telescopic link afterwards with last telescopic link, when last telescopic link is adjusted to suitable position, pull to being close to the lock sleeve lateral wall and pull the clamp plate and make it rotate, pull the clamp plate and produce the power of supporting to the briquetting gradually at the rotation in-process, and press last telescopic link to the face of supporting through the briquetting, at this in-process, the lateral wall of going up the telescopic link pastes with the spigot surface earlier and slides to the face of supporting along the spigot surface, when going up the telescopic link lateral wall and supporting the face and offset, it is in locking state promptly to pull the clamp plate. So, go up the telescopic link lateral wall and support four face contacts offsets altogether of tight face, two spigot surfaces and briquetting, make the frictional force between telescopic link and briquetting and the lock sleeve great, the locking is more firm. In addition, compare in prior art, the telescopic link is convenient, quick, easy control in accommodation process, and upper and lower telescopic link can also prevent to fall the lacquer in the junction, and the briquetting has the cushioning effect to a certain extent, can prevent that the telescopic link from taking place deformation.

The utility model discloses a further set up to: the radial section of the upper telescopic rod is a regular hexagon; the radial section of the locking sleeve is a regular hexagon corresponding to the upper telescopic rod.

Through adopting above-mentioned technical scheme, be the cross-section for regular hexagon last telescopic link peg graft in the cross-section is regular hexagon's locking cover equally, can play the effect of spline to a certain extent, and then can improve the fastness of locking.

The utility model discloses a further set up to: the locking sleeve is provided with a rotating shaft, the pulling and buckling pressing plate is provided with a propping column, the propping column is provided with an eccentric hole along the axial direction, the pulling and buckling pressing plate is connected to the rotating shaft through the rotation of the eccentric hole, and the side wall of the propping column is propped against the pressing block.

Through adopting above-mentioned technical scheme, when pulling the knot clamp plate and rotate around the rotation axis, under the effect of eccentric orfice, the adjustable tight power of supporting of post to the briquetting that supports.

The utility model discloses a further set up to: one side of the pressing block, which is pressed against the wrench-buckling pressing plate, is provided with a plurality of grooves.

Through adopting above-mentioned technical scheme, set up the recess on the briquetting, when supporting tight post and producing the extrusion to the briquetting, the briquetting can take place to warp to a certain extent, adds the deformation degree that the recess can increase the briquetting, and then can make the briquetting with support tight post, go up the tight effect of supporting between the telescopic link lateral wall better.

The utility model discloses a further set up to: the pull buckle pressing plate comprises a connecting part, a clinging part and a pulling part which sequentially extend along the side wall of the abutting column, and when the abutting column abuts against the pressing block, the clinging part is attached to the outer side wall of the locking sleeve.

By adopting the technical scheme, when the pulling pressing plate is pulled, a user can pull the whole pulling pressing plate through the pulling part, and the pulling part is far away from the eccentric hole, so that the pulling process is labor-saving.

The utility model discloses a further set up to: the connecting part is provided with a reinforcing rib.

Through adopting above-mentioned technical scheme, because connecting portion are connected with supporting tight post, pull the clamp plate and pull the in-process connecting portion atress great, easily be pulled absolutely, set up the structural strength that the strengthening rib can strengthen connecting portion, make its difficult fracture to can increase of service life.

The utility model discloses a further set up to: the side wall of the locking sleeve is provided with an upper limiting block and a lower limiting block, and when the tightly-attached part is attached to the side wall of the locking sleeve, the pulling part is positioned between the upper limiting block and the lower limiting block.

Through adopting above-mentioned technical scheme, after the laminating of hugging closely portion and lock sleeve, go up spacing piece and spacing piece down can inject the position of pulling the portion, and also can play the guard action to pulling the portion to a certain extent, prevent to pull the portion and receive along the axial impact of lock sleeve and cause the damage.

The utility model discloses a further set up to: the side wall of the lower telescopic rod is provided with a mounting hole, the side wall of the fixed sleeve is provided with a bolt hole corresponding to the mounting hole, the bolt hole is internally threaded with a fixing bolt, and the fixed sleeve is fixedly connected to the lower telescopic rod through the fixing bolt.

Through adopting above-mentioned technical scheme, when installing fixed cover in telescopic link upper end down, earlier fixed cover overlaps in telescopic link's upper end down, makes the bolt hole aim at the mounting hole, then twists in the mounting hole after penetrating fixing bolt in the bolt hole, so can be with fixed cover fixed connection on telescopic link down.

The utility model discloses a further set up to: the mounting hole is including being relative first mounting hole and the second mounting hole that sets up, and first mounting hole and second mounting hole are along the setting of flexible pole axial dislocation down.

Through adopting above-mentioned technical scheme, fixed cover fixed connection is on lower telescopic link with the second mounting hole of dislocation set's first mounting hole, can reduce fixed cover horizontal hunting's degree to a certain extent, makes to connect more stably.

The utility model discloses a further set up to: the lower extreme of fixed cover has seted up the breach along fixed cover axial, and the fixed cover lateral wall of breach both sides is provided with the lug, and the locking hole has been seted up to the lug, and locking hole female connection has locking bolt, and locking bolt's other end threaded connection has hexagon nut.

Through adopting above-mentioned technical scheme, after fixed cover sleeve in telescopic link upper end down, twist and move the locking bolt and make both sides lug be close to each other, make the breach diminish gradually simultaneously, so can adjust the fastening degree that fixed cover installed in telescopic link down.

To sum up, the utility model discloses following beneficial effect has:

1. the side wall of the upper telescopic rod is contacted and abutted with the abutting surface, the two guide surfaces and the side wall of the pressing block, so that the friction force between the upper telescopic rod and the pressing block as well as the locking sleeve is larger, the locking is firmer, the length of the telescopic rod can be adjusted at will, the telescopic rod is more convenient, rapid and easy to control, and the paint can be prevented from falling at the joint;

2. the pressing block is provided with the groove, so that the deformation degree of the pressing block when the pressing block is pressed can be increased, the pressing effect between the pressing block and the pressing column and between the pressing block and the upper telescopic rod is better, and the upper telescopic rod is not easy to deform;

3. the two mounting holes which are arranged in a staggered manner are adopted, so that the left-right swinging degree of the fixing sleeve can be reduced to a certain extent, and the connection is more stable;

4. the locking bolt is matched with the lug, and the fastening degree of the fixing sleeve arranged on the lower telescopic rod can be adjusted.

Drawings

Fig. 1 is a schematic diagram of the overall structural relationship of the embodiment.

Fig. 2 is a schematic structural relationship diagram of the fastening device of the embodiment when disassembled.

Fig. 3 is a schematic connection diagram illustrating the upper and lower telescopic rods in an inserted connection according to the embodiment, wherein the lower telescopic rod is a sectional view.

FIG. 4 is a schematic diagram of the structure of the embodiment when the trigger pressing plate is separated from the locking sleeve.

In the figure: 1. a lower telescopic rod; 2. an upper telescopic rod; 3. a fastening device; 31. fixing a sleeve; 311. bolt holes; 312. fixing the bolt; 313. a notch; 32. a locking sleeve; 321. a communicating hole; 322. a pressing surface; 323. a guide surface; 324. a rotating shaft; 4. mounting holes; 41. a first mounting hole; 42. a second mounting hole; 5. a lug; 51. a locking hole; 52. locking the bolt; 53. a hexagonal nut; 6. briquetting; 61. a groove; 7. turning and buckling the pressing plate; 71. tightly abutting against the column; 711. an eccentric hole; 72. a connecting portion; 721. reinforcing ribs; 73. a close-fitting portion; 74. a pulling part; 8. an upper limit block; 9. a lower limit block.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

A quick adjustable telescopic rod structure for garden tools is shown in figure 1 and comprises a hollow lower telescopic rod 1, an upper telescopic rod 2 is movably inserted at the top end of the lower telescopic rod 1, the radial section of the lower telescopic rod 1 is circular, and the radial section of the upper telescopic rod 2 is regular hexagon; a fastening device 3 is arranged between the upper telescopic rod 2 and the lower telescopic rod 1, the fastening device 3 comprises a fixing sleeve 31 and a locking sleeve 32, and the fixing sleeve 31 and the locking sleeve 32 are integrally arranged.

As shown in fig. 2 and 3, two mounting holes 4 are formed in the side wall of the lower telescopic rod 1, each mounting hole 4 includes a first mounting hole 41 and a second mounting hole 42, the two mounting holes 4 are arranged on opposite surfaces, and the height of the first mounting hole 41 is higher than that of the second mounting hole 42; two bolt holes 311 corresponding to the mounting holes 4 are formed in the side wall of the fixed sleeve 31, fixing bolts 312 are connected to the bolt holes 311 in an internal thread mode, and the fixed sleeve 31 is fixedly connected to the lower telescopic rod 1 through the fixing bolts 312; the lower end of the fixed sleeve 31 is axially provided with a notch 313 along the fixed sleeve 31, the side walls of the fixed sleeve 31 on the two sides of the notch 313 are respectively provided with a lug 5, the lug 5 is provided with a locking hole 51, the two locking holes 51 are internally threaded with a locking bolt 52, and the other end of the locking bolt 52 is threaded with a hexagon nut 53.

When the fixing sleeve 31 is mounted on the upper end of the lower telescopic rod 1, the fixing sleeve 31 is firstly sleeved on the upper end of the lower telescopic rod 1, the bolt hole 311 is aligned with the mounting hole 4, and then the fixing bolt 312 is inserted into the bolt hole 311 and screwed into the mounting hole 4, so that the fixing sleeve 31 can be fixedly connected on the lower telescopic rod 1. The tightening degree of the fixing sleeve 31 mounted on the lower telescopic rod 1 can be adjusted by screwing the locking bolt 52 to make the lugs 5 on both sides approach each other and make the gap 313 gradually smaller. The first mounting hole 41 and the second mounting hole 42 with different heights fixedly connect the fixing sleeve 31 to the lower telescopic rod 1, so that the degree of the left-right swing of the fixing sleeve 31 can be reduced to a certain extent, and the connection is more stable.

As shown in fig. 1, 2 and 4, 2 outer walls of last telescopic link and with 2 clearance fit of last telescopic link are located to the lock sleeve 32 cover, and the radial cross-section of lock sleeve 32 sets up to the regular hexagon corresponding with last telescopic link 2, pegs graft in the same regular hexagon's of cross-section in the lock sleeve 32 with the last telescopic link 2 that the cross-section is regular hexagon, can play the effect of stalling to a certain extent, and then can improve the fastness of locking. A communicating hole 321 is formed in one side wall of the locking sleeve 32, a pressing block 6 is movably arranged in the communicating hole 321, the inner side of the pressing block 6 abuts against the side wall of the upper telescopic rod 2, a butting surface 322 opposite to the communicating hole 321 is arranged on the inner wall of the locking sleeve 32, guide surfaces 323 are arranged on two adjacent sides of the butting surface 322, and the butting surface 322 and the guide surfaces 323 are in abutting fit with the side wall of the upper telescopic rod 2; the locking sleeve 32 is provided with a rotating shaft 324 parallel to the axis of the locking sleeve 32, the rotating shaft 324 is rotatably connected with a pulling and buckling pressure plate 7, the pulling and buckling pressure plate 7 is provided with a propping column 71, the propping column 71 is provided with an eccentric hole 711 along the axial direction, the pulling and buckling pressure plate 7 is rotatably connected to the rotating shaft 324 through the eccentric hole 711, the side wall of the propping column 71 is propped against the outer side wall of the pressing block 6, and the pressing block 6 is propped against the outer side wall of the pulling and buckling pressure plate 7 and provided with a plurality of rectangular grooves 61. The wrench pressing plate 7 comprises a connecting part 72, a clinging part 73 and a wrenching part 74 which sequentially extend along the side wall of the abutting column 71, the connecting part 72 is provided with a plurality of reinforcing ribs 721, the connecting part 72 is connected with the abutting column 71, the connecting part 72 is stressed greatly in the wrenching process of the wrench pressing plate 7 and is easy to be wrenched, the reinforcing ribs 721 are arranged to enhance the structural strength of the connecting part 72, so that the connecting part is not easy to break, and the service life of the wrench pressing plate can be prolonged. The side wall of the locking sleeve 32 is provided with an upper limit block 8 and a lower limit block 9, when the abutting column 71 abuts against the pressing block 6, the clinging portion 73 is attached to the outer side wall of the locking sleeve 32, and the pulling portion 74 is located between the upper limit block 8 and the lower limit block 9.

The utility model discloses a basic operating principle does: when the length of the telescopic rod is adjusted, the wrenching pressing plate 7 is wrenched to the side wall far away from the locking sleeve 32 through the wrenching part 74 to enable the wrenching pressing plate 7 to rotate around the rotating shaft 324, and the wrenching part 74 is far away from the eccentric hole 711, so that labor is saved in the wrenching process. The pressing force of the pressing block 6 by the pressing column 71 is gradually reduced under the action of the eccentric hole 711, so that the pressing force between the pressing block 6 and the upper telescopic rod 2 is also gradually reduced, then the upper telescopic rod 2 can be extended out or inserted into the lower telescopic rod 1, when the upper telescopic rod 2 is adjusted to a proper position, the pulling and buckling plate 7 is pulled towards the side wall close to the locking sleeve 32 to rotate around the rotating shaft 324, the pressing block 6 is gradually generated in the rotating process of the pressing column 71, the upper telescopic rod 2 is pressed towards the abutting surface 322 through the pressing block 6, in the process, the side wall of the upper telescopic rod 2 is attached to the guide surface 323 and slides towards the abutting surface 322 along the guide surface 323, when the side wall of the upper telescopic rod 2 abuts against the abutting surface 322, the pulling and buckling plate 7 is in a locking state, at the moment, the abutting portion 73 is attached to the locking sleeve 32, the upper limit block 8 and the lower limit block 9 can limit the position of the moving portion 74, and to a certain extent, the pulling portion 74 can be protected to prevent the pulling portion 74 from being damaged by the collision force along the axial direction of the lock sleeve 32. Therefore, the side wall of the upper telescopic rod 2 is contacted and abutted with four surfaces of the abutting surface 322, the two guide surfaces 323 and the side wall of the pressing block 6, so that the friction force between the upper telescopic rod 2 and the pressing block 6 as well as the locking sleeve 32 is larger, and the locking is firmer. In addition, compare in prior art, the telescopic link is convenient, quick, easy control in accommodation process, and upper and lower telescopic link can also prevent to fall the lacquer in the junction, and briquetting 6 has the cushioning effect to a certain extent, can prevent to go up telescopic link 2 and take place deformation.

Because the pressing block 6 is provided with the groove 61, when the pressing block 6 is extruded by the abutting column 71, the pressing block 6 can deform to a certain extent, the deformation degree of the pressing block 6 can be increased by additionally arranging the groove 61, and the abutting effect between the pressing block 6 and the abutting column 71 and between the side walls of the upper telescopic rod 2 is better.

The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.

Claims

1. The utility model provides a quick adjustable telescopic rod structure for garden instrument, is including lower telescopic link (1), the inside activity in top of lower telescopic link (1) is pegged graft and is had telescopic link (2), its characterized in that: a fastening device (3) is arranged between the upper telescopic rod (2) and the lower telescopic rod (1), the fastening device (3) comprises a fixed sleeve (31) and a locking sleeve (32), the fixed sleeve (31) and the locking sleeve (32) are integrally formed, the fixed sleeve (31) is fixedly connected to the outer wall of the lower telescopic rod (1), the locking sleeve (32) is sleeved on the outer wall of the upper telescopic rod (2), and the locking sleeve (32) is in clearance fit with the upper telescopic rod (2); a communicating hole (321) is formed in the side wall of the locking sleeve (32), a pressing block (6) is movably arranged in the communicating hole (321), and the pressing block (6) is abutted against the side wall of the upper telescopic rod (2); the locking sleeve (32) is rotatably connected with a wrench pressing plate (7) for driving the pressing block (6) to lock the upper telescopic rod (2); the inner wall of the locking sleeve (32) is provided with a propping surface (322) opposite to the communicating hole (321), two sides of the propping surface (322) are provided with guide surfaces (323), and the propping surface (322) and the guide surfaces (323) are matched with the side wall of the upper telescopic rod (2) in a propping manner.

2. The quick adjustable telescopic rod structure for garden tools according to claim 1, characterized in that: the radial section of the upper telescopic rod (2) is a regular hexagon; the radial section of the locking sleeve (32) is a regular hexagon corresponding to the upper telescopic rod (2).

3. The quick adjustable telescopic rod structure for garden tools according to claim 1, characterized in that: the locking device is characterized in that a rotating shaft (324) is arranged on the locking sleeve (32), a tightening column (71) is arranged on the wrench pressing plate (7), an eccentric hole (711) is formed in the tightening column (71) along the axial direction, the wrench pressing plate (7) is rotatably connected to the rotating shaft (324) through the eccentric hole (711), and the side wall of the tightening column (71) is pressed against the pressing block (6).

4. The quick adjustable telescopic rod structure for garden tools according to claim 1, characterized in that: one side of the pressing block (6) which is abutted against the wrench pressing plate (7) is provided with a plurality of grooves (61).

5. The quick adjustable telescopic rod structure for garden tools according to claim 3, characterized in that: the wrench pressing plate (7) comprises a connecting part (72), a clinging part (73) and a wrenching part (74) which sequentially extend along the side wall of the tightening column (71), and when the tightening column (71) is tightly propped against the pressing block (6), the clinging part (73) is attached to the outer side wall of the locking sleeve (32).

6. The quick adjustable telescopic rod structure for garden tools according to claim 5, characterized in that: the connecting part (72) is provided with a reinforcing rib (721).

7. The quick adjustable telescopic rod structure for garden tools according to claim 5, characterized in that: the side wall of the locking sleeve (32) is provided with an upper limiting block (8) and a lower limiting block (9), and when the clinging portion (73) is clung to the side wall of the locking sleeve (32), the pulling portion (74) is located between the upper limiting block (8) and the lower limiting block (9).

8. The quick adjustable telescopic rod structure for garden tools according to claim 1, characterized in that: mounting hole (4) have been seted up to lower telescopic link (1) lateral wall, fixed cover (31) lateral wall seted up with corresponding bolt hole (311) of mounting hole (4), bolt hole (311) internal thread connection has fixing bolt (312), fixed cover (31) pass through fixing bolt (312) fixed connection in on lower telescopic link (1).

9. The quick adjustable telescopic rod structure for garden tools according to claim 8, characterized in that: the mounting hole (4) is including being relative first mounting hole (41) and the second mounting hole (42) that sets up, first mounting hole (41) with second mounting hole (42) are followed stretch rod (1) axial dislocation set down.

10. The quick adjustable telescopic rod structure for garden tools according to claim 1 or 8, characterized in that: the lower extreme of fixed cover (31) is followed fixed cover (31) axial is seted up jaggedly (313), fixed cover (31) lateral wall of breach (313) both sides is provided with lug (5), locking hole (51) have been seted up in lug (5), locking hole (51) female connection has locking bolt (52), the other end threaded connection of locking bolt (52) has hexagon nut (53).