CN106622812A

CN106622812A - Telescopic extension rod

Info

Publication number: CN106622812A
Application number: CN201611067090.1A
Authority: CN
Inventors: 李淑红
Original assignee: NINGBO LIS INDUSTRIAL Co Ltd
Current assignee: NINGBO LIS INDUSTRIAL Co Ltd
Priority date: 2016-11-28
Filing date: 2016-11-28
Publication date: 2017-05-10
Anticipated expiration: 2036-11-28
Also published as: CN106622812B

Abstract

The invention provides a telescopic extension rod. The telescopic extension rod comprises a handle trigger assembly and a pulling rod; one end of an outer pipe is connected with the handle trigger assembly in an inserting mode, and a quick clamp assembly is installed at the other end of the outer pipe; one end of a telescopic pipe is installed in the outer pipe in a penetrating mode, a connecting seat is installed at the other end of the telescopic pipe, and a supporting pipe is installed on the connecting seat in an inserting mode; one end of a pulling assembly is located in the supporting pipe, and the other end of the pulling assembly is located in the connecting seat; a threaded rod is installed in the telescopic pipe, and the end of the threaded rod is connected with the pulling assembly in a linkage mode; a clamping assembly is installed in the telescopic pipe, the threaded rod is sleeved with a clamping seat, one ends of clamping claws are hinged to the clamping seat, the thread ends are installed at the other ends of the clamping claws, and two hinge pieces are hinged to the other ends of the clamping claws; and the pulling rod is located in the telescopic pipe, one end of the pulling rod is connected with the handle trigger assembly in a linkage mode, and the other end of the pulling rod is hinged to the two hinge pieces. The telescopic extension rod has the beneficial effects that the structure is reasonable, a spraying gun can be effectively controlled to spray after the telescopic extension rod stretches out or draws back, and the telescopic extension rod is extremely reliable when being used.

Description

Scalable extension rod

Technical field

The invention belongs to spray gun fittings technical field, is related to scalable extension rod.

Background technology

Extension rod is to apply a kind of part on spray gun, because spray gun needs to be sprayed onto eminence, so needing to use extension rod To increase the spray distance of spray gun.

At present, extension rod can be divided into long extension rod and short extension rod according to length, as the term suggests, long extension rod is exactly to grow The longer extension rod of degree, in some special occasions, such as when needing to spray higher object, it is necessary in spray gun End connect long extension rod.

Such as a kind of Chinese patent of Application No. 201110275104.X, discloses a kind of lengthening operating handle for spray gun, Including gun fixture, expansion link, handle frame, spanner and drawstring, it is provided between the gun fixture and expansion link Fixed connecting base, described fixed connecting base one end is fixedly connected with expansion link one end, the fixed connecting base other end adjustable angle It is connected on gun fixture rear end, the fixed connecting base side is provided with ships and resell on another market, gun fixture opposite side degree Hoisting mechanism is provided with, described drawstring one end connects spanner, and the other end bypasses gun fixture front end and be fixed on volume through shipping and reselling on another market Raise in mechanism.

Above-mentioned lengthening operating handle for spray gun is substantially exactly a kind of extension rod of spray gun, though this rifle extended operation handle So can effectively realize extending, and can effectively adjust the angle of spray gun, realize nozzle angle and be sprayed-on face generally vertically, Improve the spraying effect sprayed under remote or higher position.

But above-mentioned telescopic extendable bar, because structure is not reasonable, it is unable to effective control after stretching, extension or indentation Spray gun spraying, it is unreliable when in use.

The content of the invention

The purpose of the present invention is the problems referred to above existed for prior art, it is proposed that scalable extension rod.

The purpose of the present invention can be realized by following technical proposal：A kind of scalable extension rod, including：

Handle trigger component；

Outer tube, its one end is plugged on the handle trigger component, and quick clip assembly is provided with the other end；

Telescoping tube, its one end is located in the outer tube, and relative with outer tube holding by the quick clip assembly It is fixed, connecting seat is provided with the other end of the telescoping tube, the support tube for connecting spray gun is plugged with the connecting seat；

Component, its one end is affected to be located in the support tube, the other end is located in the connecting seat, described for pulling The trigger of spray gun；

Screw rod, it is arranged in the telescoping tube, and the end of the screw rod affects component to be connected with described；

Clamp assemblies, it is arranged in the telescoping tube, the clamp assemblies include grip slipper, at least two gripper jaws with And at least two hinge plates, the grip slipper is set in outside the screw rod, and one end of the gripper jaw is hinged on the grip slipper Have on the upper other end for clamping the screw flight end, and the hinge plate cuts with scissors with the other end of the gripper jaw Connect；

Pull bar, it is located in the telescoping tube, and one end of the pull bar is connected with the handle trigger component, another End is hinged with the hinge plate, for driving the gripper jaw to clamp the screw rod.

Preferably, described affect component to include the first mounting seat, the second mounting seat, pull rope, head rod and the Two connecting rods, first mounting seat is arranged in the support tube, and second mounting seat is arranged in the connecting seat, institute State that head rod is movably arranged in first mounting seat and the rear end of the head rod is located in described second In mounting seat, second connecting rod is arranged in second mounting seat, and one end of second connecting rod with it is described The screw rod connection other end is connected with the head rod, the two ends of the pull rope respectively with the head rod with And the trigger of the spray gun is connected.

Preferably, described affect component also to include linkage block and lock, the linkage block is arranged on described second and installs Can slide on seat and in second mounting seat, the lock is arranged in the linkage block, is worn in second connecting rod Rotational pin is provided with, the rotational pin can be rotated through the lock and the linkage block, the lock around the rotational pin, institute State head rod and offer open slot on the rear end in second mounting seat, the front end of the lock is provided with positioning Pin, the alignment pin is connected in the open slot, so that the head rod is connected with second connecting rod.

Preferably, being provided with plunger knob on the connecting seat, it is provided with the linkage block for contradicting in the lock The latch spring of end face is detained, the plunger knob includes plunger stud, plunger rod and plunger spring, and the plunger stud is consolidated Be scheduled on the connecting seat, the plunger rod be located in the plunger stud and can along the axial movement of the plunger stud, The plunger spring is set on the plunger rod and its two ends contradicts with the plunger rod and the plunger stud connect respectively Connect, the plunger rod is contradicted in the lock upper surface by the elastic force of the plunger spring, so as to the alignment pin be limited In the open slot.

Preferably, being fixedly installed guide pad in the telescoping tube, the pull bar and the screw rod both pass through described leading To block.

Preferably, being provided with guide support pipe in the outer tube, one end of the guide support pipe is contradicted in the handle The other end is contradicted on the guide pad on trigger component.

Preferably, the quick clip assembly includes clamp and speeder wrench, gap slotted eye is provided with the clamp with And two respectively correspond to gap slotted eye sandwich termination, be provided with for hold-down bolt, institute on the clamping termination of rear end State speeder wrench to be arranged on the clamping termination of front end, by pulling the speeder wrench size of gap slotted eye is changed So as to embrace the telescoping tube.

Preferably, being provided with the end cap for limiting its flexible stroke on the rear end of the telescoping tube.

Preferably, being provided with guide pillar on the guide pad, the end of the guide pillar is located in the grip slipper.

Compared with prior art, beneficial effects of the present invention are：

1st, beneficial effects of the present invention are：Rational in infrastructure, its energy effective control spray gun spraying after stretching, extension or indentation makes Used time is very reliable.

2nd, the first mounting seat and the second mounting seat are split type structure, and support tube is also dismountable split with connecting seat Formula structure, and support tube is connected with spray gun, so when removing and installing, it is only necessary to which support tube is pulled down from connecting seat, just Can realize that spray gun is separated with extension rod, with easy-to-dismount advantage, and also can realize transmitting the effect of screw motion.

3rd, by the clamping of alignment pin and open slot, head rod is made to fix with lock, and the one end for latching passes through Rotational pin is fixed in the second connecting rod, it is only necessary to rotate lock, it becomes possible to which the one end for making its correspondence head rod tilts, this Sample can just be such that alignment pin separates with open slot, this makes it possible to from the second mounting seat extract head rod out, so that Support tube is separated with connecting seat, that is, the first mounting seat is separated with the second mounting seat.

4th, plunger knob can make alignment pin and open slot clamping, support tube is fixed in mounting seat, due to plunger spiral shell Post can be threadedly attached in mounting seat, the lower end of plunger rod is contradicted in the upper end of lock by the elastic force of plunger spring On face, lock is set to overcome the elastic force of latch spring, now alignment pin is located in open slot, head rod is fixed on one with lock Rise, when rotation pulls plunger rod, plunger rod overcomes the elastic force of plunger spring, separates from lock, and lock is snapped spring top Rise, alignment pin is separated with open slot, and head rod just can be extracted out from the second mounting seat, and this dismountable structure is very It is reliable, and remove and be convenient to.

Description of the drawings

Fig. 1 is the schematic diagram of the scalable extension rod of the present invention；

Fig. 2 is the top view of the scalable extension rod of the present invention；

Fig. 3 is the A-a generalized sections of Fig. 2；

Fig. 4 is the B portions enlarged diagram of Fig. 3；

Fig. 5 is the C portions enlarged diagram of Fig. 3；

Fig. 6 is the position view of the clamp assemblies, quick clip assembly and guide pad of the present invention；

Fig. 7 is the structural representation of the clamp assemblies of the present invention；

Fig. 8 is the structural representation for affecting component of the present invention.

In figure, 100, handle trigger component；200th, outer tube；210th, guide support pipe；300th, quick clip assembly；310th, press from both sides Body；311st, gap slotted eye；312nd, termination is clamped；313rd, hold-down bolt；320th, speeder wrench；400th, telescoping tube；410th, connecting seat； 420th, plunger knob；421st, plunger stud；422nd, plunger rod；423rd, plunger spring；430th, support tube；440th, guide pad；441、 Guide pillar；450th, end cap；510th, the first mounting seat；520th, the second mounting seat；530th, pull rope；540th, head rod；541st, open Mouth groove；550th, the second connecting rod；560th, linkage block；561st, latch spring；570th, latch；571st, alignment pin；580th, rotational pin； 600th, screw rod；710th, grip slipper；720th, gripper jaw；721st, the end of thread；730th, hinge plate；800th, pull bar.

Specific embodiment

The following is the specific embodiment of the present invention and combine accompanying drawing, technical scheme is further described, But the present invention is not limited to these embodiments.

As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, a kind of scalable extension rod, including：Handle trigger Component 100, outer tube 200, telescoping tube 400, component, screw rod 600, clamp assemblies and pull bar 800 are affected, outer tube 200 and stretched The draw 400 is socketed, and telescoping tube 400 can vertically be pulled out or indentation in outer tube 200, and handle trigger component 100 can lead to Cross pull bar 800 to affect screw rod 600, screw rod 600 to pull affect component again, affect component to be connected with the trigger of spray gun, from And be used for controlling spray gun work.

Handle trigger component 100, it is fixed on the rearmost end of outer tube 200, handle trigger component 100 include handle and Trigger, by pulling trigger, it becomes possible to pull pull bar 800, it is very easy to use, and handle trigger component 100 with it is outer Pipe 200 is easily installed and keeps in repair to be detachably connected.

The rear end of outer tube 200 is plugged on the handle trigger component 100, and quick clip assembly 300 is provided with front end, and And an antiskid handle can also be arranged on outer tube 200, antiskid is so being sprayed anti-slip veins are above provided with to eminence Tu Shi, user can be with a hand control handle trigger component 100, and another hand is held in antiskid upper, consequently facilitating behaviour Make.

For functionally, outer tube 200 can provide initial extension function, in order to realize telescopic purpose, outer tube 200 can be that telescoping tube 400 provides the space retracted.

Telescoping tube 400 is pipe of the external diameter less than the internal diameter of outer tube 200, this makes it possible to be plugged in outer tube 200, this Place it is worthy of note that, the rear end of telescoping tube 400 is located in the outer tube 200, and by the quick clip assembly 300 and institute State outer tube 200 to keep being relatively fixed；The fixation principle of quick clip assembly 300 is exactly that outer tube 200 is clamped in rear end, and front end is clamped flexible The pipe shaft of pipe 400, when needing flexible, then unclamps the one end for clamping telescoping tube 400, allows telescoping tube 400 to slide, and works as regulation During the stroke of good telescoping tube 400, then front end is clamped, make telescoping tube 400 keep fixing with outer tube 200.

Connecting seat 410 is provided with the front end of the telescoping tube 400, is plugged with the connecting seat 410 for connecting spray The support tube 430 of rifle；Herein it is worthy of note that, an adapter sleeve, adapter sleeve and connecting seat can also be worn in connecting seat 410 410 coordinate, and can play more preferable connection function；Support tube 430 is fixed and is located in adapter sleeve, and is connected with spray gun, so as to Spray gun is fixed on into the front end of the extension rod.

Affect component to be a kind of link gear, be divided into first half and latter half, its first half one end is located at institute State in support tube 430, one end of latter half is located in the connecting seat 410, for pulling the trigger of the spray gun.

Screw rod 600 can be preferably with the screw rod 600 of full thread, and it is arranged in the telescoping tube 400, the screw rod 600 end affects component to be connected with described.

Herein it is worthy of note that, although with thread on screw rod 600, but it is not to be threaded connection to realize Axially-movable, but by the thread increasing friction force on screw rod 600, so as to coordinate with clamp assemblies, pressed from both sides by clamp assemblies Firmly screw rod 600, and axially pulling screw rod 600.

Clamp assemblies are a kind of mechanisms that can pull screw rod 600 by clamping, and it is arranged on the telescoping tube 400 Interior, the clamp assemblies include grip slipper 710, at least two gripper jaws 720 and at least two hinge plates 730, the clamping Seat 710 is set in outside the screw rod 600, and one end of the gripper jaw 720 is hinged on the grip slipper 710, gripper jaw 720 There is the end of thread 721 for clamping the screw rod 600, and the hinge plate 730 and the gripper jaw 720 on the other end The other end is hinged.

In a preferred embodiment, grip slipper 710 is one, and with a centre bore worn for screw rod 600, it two Side is to be hinged gripper jaw 720；The quantity of gripper jaw 720 is two, is respectively hinged at the two ends of grip slipper 710, and two folders Holding pawl 720 can rotate towards the direction of screw rod 600, so as to clamp screw rod 600, and pull screw rod 600；Hinge plate 730 Quantity is also two, and the upper end of two hinge plates 730 is hinged respectively with the anterior side of two gripper jaws 720, two hinge plates 730 lower end is hinged on pull bar 800, by promoting hinge plate 730, it becomes possible to force gripper jaw 720 to open or close up.

In actual clamping process, when two gripper jaws 720 unclamp screw rod 600, two hinge plates 730 form I shapes, when During two 720 clamping screws 600 of gripper jaw, two hinge plates 730 form V-arrangement.

Pull bar 800 is located in the telescoping tube 400, and one end of the pull bar 800 is linked with the handle trigger component 100 Connection, the other end is hinged with the hinge plate 730, for driving the gripper jaw 720 to clamp the screw rod 600, in hinge plate When 730 quantity is two, pull bar 800 can be simultaneously hinged by bearing pin with two hinge plates 730.

During actually used, when needing to adjust the length of extension rod, quick clip assembly 300 is opened, then will Telescoping tube 400 is pulled out or telescoping tube 400 is pushed in outer tube 200 from outer tube 200, is then clamped with quick clip assembly 300 Telescoping tube 400, makes telescoping tube 400 keep being relatively fixed with outer tube 200, this makes it possible to complete telescopic adjustment prolongation pole length Purpose, and the very convenient reliability when adjusting.

When needing to control spray gun, then handle trigger component 100 is pulled, so as to pull pull bar 800, pull bar 800 to be pulled rearward It is dynamic, so as to drive two hinge plates 730 to rotate, so that two gripper jaws 720 clamp screw rod 600, and drive screw rod 600 backward It is mobile；When screw rod 600 is moved rearwards by making, can drive and affect component to be moved rearwards by, so as to pull the trigger on spray gun；This structure Extension rod, can be on the architecture basics for realizing telescopic adjustment, the reliable purpose for realizing driving spray gun work will not be subject to Telescoping tube 400 changes telescopic location to be affected.

As shown in Fig. 3, Fig. 4, Fig. 8, on the basis of above-mentioned embodiment, on the basis of above-mentioned embodiment, in order to Linkage function is realized pulling spray gun trigger, and is easily installed dismounting, it is described affect component include the first mounting seat 510, Second mounting seat 520, pull rope 530, the connecting rod 550 of head rod 540 and second.

First mounting seat 510 and the second mounting seat 520 are half-round tubular structure, and this split type structure has to be easy to The advantage of dismounting, first mounting seat 510 is arranged in the support tube 430, and second mounting seat 520 is arranged on described In connecting seat 410, support tube 430 and connecting seat 410 are dismountable split-type structural, and support tube 430 is connected with spray gun, So when removing and installing, it is only necessary to which support tube 430 is pulled down from connecting seat 410, can be achieved with spray gun and extension rod point From, and also with the effect of the transmission motion of screw rod 600.

The head rod 540 is movably arranged in first mounting seat 510 and the head rod 540 Rear end is located in second mounting seat 520, and second connecting rod 550 is arranged in second mounting seat 520, and second The rear end of connecting rod 550 is threadedly coupled with screw rod 600, and front end is connected with the head rod 540, the pull rope 530 two ends are connected respectively with the trigger of the head rod 540 and the spray gun.

In actual practical process, the second connecting rod 550 is pulled by screw rod 600, so as to drive head rod 540 to move Dynamic, head rod 540 drives pull rope 530 when mobile, so as to pull the trigger of spray gun, the linkage principle of pull rope 530 Similar to the brake cable of bicycle.

It is described to affect component also to include linkage block 560 on the basis of above-mentioned embodiment as shown in Fig. 3, Fig. 4, Fig. 8 And lock 570, the linkage block 560 is arranged on the bottom of second mounting seat 520, and can be in second mounting seat Slide on 520, head rod 540 is flat strip shaped structure, the front end face of the second mounting seat 520 has one and supplies head rod 540 openings for wearing, head rod 540 is connected by lock 570 through the opening with the second connecting rod 550.

The lock 570 is arranged in the linkage block 560, its similar to a strip lid-like, Gai In one connecting rod 540 and the second connecting rod 550.

Rotational pin 580 is equipped with second connecting rod 550, the rotational pin 580 is through the lock 570 and institute Linkage block 560 is stated, the lock 570 can be rotated around the rotational pin 580, the second connecting rod 550 is by rotational pin 580 and linkage Block 560 is connected.

The head rod 540 is located on the rear end in second mounting seat 520 and offers open slot 541, described The front end of lock 570 is provided with alignment pin 571, and the alignment pin 571 is connected in the open slot 541, so that described the One connecting rod 540 is connected with second connecting rod 550.

This linked manner has the advantages that convenient disassembly, by the clamping of alignment pin 571 and open slot 541, makes first Connecting rod 540 is fixed with lock 570, and is latched 570 one end and be fixed in the second connecting rod 550 by rotational pin 580, Need to rotate lock 570, it becomes possible to which the one end for making its correspondence head rod 540 tilts, this makes it possible to make alignment pin 571 with Open slot 541 is separated, and this makes it possible to from the second mounting seat 520 extract head rod 540 out, so that support tube 430 Separate with connecting seat 410, that is, the first mounting seat 510 is separated with the second mounting seat 520.

From the perspective of in linkage principle, the second connecting rod 550, lock 570 and linkage block 560 are fixed together, can be together Motion, head rod 540 is connected by lock 570 with the second connecting rod 550, when the second connecting rod 550 is pulled by screw rod 600 When, head rod 540 can be pulled by lock 570, and also linkage block 560 can be pulled by rotational pin 580.

As shown in Fig. 4, Fig. 8, on the basis of above-mentioned embodiment, on the connecting seat 410 plunger knob is provided with 420, the latch spring 561 for contradicting in 570 lower surfaces of the lock is provided with the linkage block 560.

Because lock 570 is hinged in the second connecting rod 550, so latch spring 561 can push up lock 570 Rise, when lock 570 is not acted on by external force, alignment pin 571 is constantly in open slot 541 and separates.

The plunger knob 420 includes plunger stud 421 and plunger rod 422, is provided with connecting seat 410 and is threaded The sheath in hole, plunger stud 421 has external screw thread and through hole, and the plunger stud 421 is threaded in the connecting seat 410 On interior sheath, the plunger rod 422 is arranged in the through hole of the plunger stud 421 and lower end is contradicted in the lock 570 upper surfaces, plunger rod 422 is the rod-like structure with handle, and plunger spring 423 is arranged on plunger rod 422 and plunger stud In gap between 421, that is, in the through hole of plunger stud 421, and it is set on plunger rod 422, plunger spring 423 upper end is contradicted on the inwall of the through hole of plunger stud 421, and lower end is contradicted on the boss of the lower end of plunger rod 422, Plunger rod 422 is pushed up downwards so as to pass through the elastic force of itself, that is, plunger rod 422 is pushed up into the upper surface of lock 570, from And the alignment pin 571 is limited in the open slot 541.

What plunger knob 420 can be played is fixed on support tube 430 in mounting seat, because plunger rod 422 can wear In plunger stud 421, and can pull up and down, and plunger rod 422 is withstood on plunger spring 423 upper end of lock 570 On face, the elastic force that this makes it possible to make lock 570 overcome latch spring 561 is moved downward, and now alignment pin 571 is located at open slot In 541, head rod 540 is fixed together with lock 570.

When plunger rod 422 is pulled up, plunger rod 422 overcomes the elastic force of plunger spring 423, this makes it possible to from lock When separating on 570, lock 570 is snapped the jack-up of spring 561, and alignment pin 571 is separated with open slot 541, and head rod 540 is just Can extract out from the second mounting seat 520, this dismountable structure is very reliable, and remove and be convenient to.

Herein it is worthy of note that, the upper surface of plunger stud 421 is slope, and plunger rod 422 is only needed when pulling Rotate, it becomes possible to pulled up by the slope, be exactly Rotational Cylindrical stopper rod 422 in simple terms, plunger rod 422 is being rotated When can pull up so that it 570 is separated with lock.

Because the first mounting seat 510 is located in support tube 430, the second mounting seat 520 is located in connecting seat 410, first will be propped up Stay tube 430 is plugged in connecting seat 410, and now the rear end of head rod 540 passes through the second mounting seat 520, wears lock In 570, plunger rod 422 is then turned, plunger rod 422 is pressed in the upper surface of lock 570, and lock 570 is pressed towards head rod 540, alignment pin 571 is snapped in open slot 541, support tube 430 is fixed in mounting seat, so as to realize easy-to-dismount mesh 's；And in screw rod 600 when pulled, the second connecting rod 550 pulls linkage block 560 and lock 570, lock 570 to pull the One connecting rod 540, the pulling traction rope 530 of head rod 540, so as to realize controlling the purpose of spray gun work.

As shown in Fig. 3, Fig. 6, Fig. 7, on the basis of above-mentioned embodiment, it is fixedly installed in the telescoping tube 400 and leads To block 440, the pull bar 800 and the screw rod 600 both pass through the guide pad 440, due to telescoping tube 400 and outer tube 200 Length it is longer, so screw rod 600 is also very long with the length of pull bar 800, so need guide pad 440 to carry out screw 600 with And the moving direction of pull bar 800 so as to according to design direction move, and also can move it is more smooth.

As shown in Fig. 3, Fig. 6, on the basis of above-mentioned embodiment, in the outer tube 200 guide support pipe is provided with 210, one end of the guide support pipe 210 contradicts the other end on the handle trigger component 100 and contradicts in the guide pad On 440, support tube 430 can play a part of support guide block 440, and screw rod 600 also through the guide support pipe 210 It is interior, can so play screw 600 and move, and support guide block 440.

As shown in Fig. 3, Fig. 6, Fig. 8, on the basis of above-mentioned embodiment, the quick clip assembly 300 includes clamp 310 And speeder wrench 320, gap slotted eye 311 is provided with the clamp 310 and two correspond to respectively the both sides of gap slotted eye 311 Clamping termination 312, is provided with for hold-down bolt 313 on the clamping termination 312 of rear end, and the speeder wrench 320 is arranged On the clamping termination 312 of front end, change the size of gap slotted eye 311 by pulling the speeder wrench 320 so as to Embrace the telescoping tube 400.

The clamping principle of the quick clip assembly 300 is exactly in itself clamping two different pipes of bore by clamp 310 Son, because two clamping terminations 312 can respectively clamp the different telescoping tube 400 of bore and outer tube 200, and clamp 310 This is overall as one, so that telescoping tube 400 keeps fixing with outer tube 200.

As shown in figure 3, on the basis of above-mentioned embodiment, being provided with the rear end of the telescoping tube 400 for limiting The end cap 450 of its flexible stroke, the end cap 450 can limit the flexible stroke of telescoping tube 400, it is to avoid it takes off from outer tube 200 From.

As shown in Fig. 3, Fig. 6, Fig. 7, on the basis of above-mentioned embodiment, on the guide pad 440 guide pillar is provided with 441, the end of the guide pillar 441 is located in the grip slipper 710.

Specific embodiment described herein is only explanation for example spiritual to the present invention.Technology neck belonging to of the invention The technical staff in domain can be made various modifications to described specific embodiment or supplement or replaced using similar mode Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.

Claims

1. a kind of scalable extension rod, it is characterised in that include：

Handle trigger component；

Telescoping tube, its one end is located in the outer tube, and keeps being relatively fixed by the quick clip assembly and the outer tube, Connecting seat is provided with the other end of the telescoping tube, the support tube for connecting spray gun is plugged with the connecting seat；

Component, its one end is affected to be located in the support tube, the other end is located in the connecting seat, for pulling the spray gun Trigger；

Clamp assemblies, it is arranged in the telescoping tube, and the clamp assemblies include grip slipper, at least two gripper jaws and extremely Few two hinge plates, the grip slipper is set in outside the screw rod, and one end of the gripper jaw is hinged on the grip slipper separately Have for clamping the screw flight end on one end, and the hinge plate is hinged with the other end of the gripper jaw；

Pull bar, it is located in the telescoping tube, and one end of the pull bar is connected with the handle trigger component, the other end with The hinge plate is hinged, for driving the gripper jaw to clamp the screw rod.

2. as described in claim 1 scalable extension rod, it is characterised in that：It is described affect component include the first mounting seat, Second mounting seat, pull rope, head rod and the second connecting rod, first mounting seat is arranged in the support tube, Second mounting seat is arranged in the connecting seat, the head rod be movably arranged in first mounting seat and The rear end of the head rod is located in second mounting seat, and second connecting rod is arranged on second mounting seat It is interior, and one end of second connecting rod is connected the other end with the screw rod and is connected with the head rod, it is described The two ends of pull rope are connected respectively with the trigger of the head rod and the spray gun.

3. as described in claim 2 scalable extension rod, it is characterised in that：It is described affect component also include linkage block and Lock, the linkage block is arranged in second mounting seat and can slide in second mounting seat, and the lock is arranged In the linkage block, rotational pin is equipped with second connecting rod, the rotational pin is latched and described through described Motion block, the lock can be rotated around the rotational pin, and the head rod is located on the rear end in second mounting seat and opens Open slot is provided with, the front end of the lock is provided with alignment pin, and the alignment pin is connected in the open slot, so that described Head rod is connected with second connecting rod.

4. as described in claim 3 scalable extension rod, it is characterised in that：Plunger knob is provided with the connecting seat, The latch spring for contradicting in the lock lower surface is provided with the linkage block, the plunger knob includes plunger spiral shell Post, plunger rod and plunger spring, the plunger stud is fixed on the connecting seat, and the plunger rod is located in the plunger In stud and can be along the axial movement of the plunger stud, the plunger spring be set on the plunger rod and its two ends is distinguished Contradict with the plunger rod and the plunger stud and be connected, the plunger rod is contradicted in institute by the elastic force of the plunger spring Lock upper surface is stated, so as to the alignment pin is limited in the open slot.

5. such as the scalable extension rod described in claim 1 or 4, it is characterised in that：It is fixedly installed in the telescoping tube and leads To block, the pull bar and the screw rod both pass through the guide pad.

6. as described in claim 5 scalable extension rod, it is characterised in that：Guide support pipe is provided with the outer tube, One end of the guide support pipe contradicts the other end on the handle trigger component and contradicts on the guide pad.

7. as described in claim 6 scalable extension rod, it is characterised in that：The quick clip assembly is including clamp and soon Fast spanner, is provided with gap slotted eye on the clamp and two correspond to respectively gap slotted eye sandwich termination, the institute of rear end State and be provided with for hold-down bolt on clamping termination, the speeder wrench is arranged on the clamping termination of front end, by pulling Move the speeder wrench to change the size of gap slotted eye so as to embrace the telescoping tube.

8. such as the scalable extension rod described in claim 1 or 7, it is characterised in that：It is provided with the rear end of the telescoping tube For limiting the end cap of its flexible stroke.

9. as described in claim 5 scalable extension rod, it is characterised in that：Guide pillar is provided with the guide pad, it is described The end of guide pillar is located in the grip slipper.