CN106622812B

CN106622812B - Scalable extension rod

Info

Publication number: CN106622812B
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: 2018-11-06
Anticipated expiration: 2036-11-28
Also published as: CN106622812A

Abstract

The present invention provides a kind of scalable extension rods, including：Handle trigger component；Outer tube one end is plugged on handle trigger component, and quick clip assembly is provided on the other end；Telescoping tube one end is threaded through in outer tube, and connecting seat is provided on the other end, support tube is plugged on connecting seat；Component one end is affected to be located in support tube, the other end is located in connecting seat；Screw rod is arranged in telescoping tube, and the end of screw rod is connected with component is affected；Clamp assemblies are arranged in telescoping tube, and grip slipper is set in outside screw rod, and one end of gripper jaw, which is hinged on grip slipper on the other end, has the end of thread, and two hinge plates are hinged with the other end of two gripper jaws respectively；Pull rod is located in telescoping tube, and one end and the handle trigger component of pull rod are connected, and the other end and two hinge plates are hinged；Beneficial effects of the present invention are：It is reasonable for structure, it can effectively control spray gun spraying after stretching, extension or retraction, when use is very reliable.

Description

Scalable extension rod

Technical field

The invention belongs to spray gun fittings technical fields, are related to scalable extension rod.

Background technology

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

Currently, extension rod can be divided into long extension rod and short extension rod according to length, as its name suggests, long extension rod is exactly to grow Longer extension rod is spent, 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 it is a kind of application No. is the Chinese patents of 201110275104.X, disclose a kind of lengthening operating handle for spray gun, Including gun fixture, telescopic rod, handle frame, spanner and drawstring are equipped between the gun fixture and telescopic rod Fixed connecting base, described fixed connecting base one end are fixedly connected with telescopic rod one end, the fixed connecting base other end adjustable angle It is connected on gun fixture rear end to degree, the fixed connecting base side is equipped with and ships and resell on another market, gun fixture opposite side Equipped with hoisting mechanism, described drawstring one end connects spanner, and the other end is passed through and shipped and resell on another market, and is fixed on volume around gun fixture front end It raises 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 It so can effectively realize extension, 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 cannot be controlled effectively since structure is not reasonable after stretching, extension or retraction Spray gun spraying, it is unreliable when in use.

Invention content

The purpose of the present invention is in view of the above-mentioned problems existing in the prior art, it is proposed that scalable extension rod.

Object of the invention can be realized by the following technical scheme：A kind of scalable extension rod, including：

Handle trigger component；

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

Telescoping tube, one end are threaded through in the outer tube, and keep opposite by the quick clip assembly and the outer tube It is fixed, it is provided with connecting seat on the other end of the telescoping tube, the support tube for connecting spray gun is plugged on the connecting seat；

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

Clamp assemblies, be 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 are set in outside the screw rod, one end of the gripper jaw is hinged on the grip slipper Have on the upper other end for the screw flight end to be clamped, and the other end of the hinge plate and the gripper jaw is cut with scissors It connects；

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

Preferably, described, to affect component further include linkage block and lock, and the linkage block setting is in second installation It can slide on seat and in second mounting base, the lock is arranged in the linkage block, is worn in second connecting rod Equipped with rotational pin, the rotational pin passes through the lock and the linkage block, the lock that can be rotated around the rotational pin, institute It states and offers open slot on the rear end that head rod is located in second mounting base, the front end of the lock is provided with positioning Pin, the positioning pin is connected in the open slot, to make the head rod be connected with second connecting rod.

Preferably, being provided with plunger knob on the connecting seat, it is provided in 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 solid Be scheduled on the connecting seat, the plunger rod be threaded through 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 both ends contradicts with the plunger rod and the plunger stud connect respectively It connects, the plunger rod is contradicted by the elastic force of the plunger spring in the lock upper surface, to limit the positioning pin In the open slot.

Preferably, being fixedly installed guide pad in the telescoping tube, the pull rod and the screw rod both pass through described lead 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 contradicts on the guide pad on trigger component.

Preferably, the quick clip assembly includes clamp and speeder wrench, be provided on the clamp gap slot with And two correspond to gap slot sandwich end respectively, is provided with for hold-down bolt, institute on the clamping end of rear end It states speeder wrench to be arranged on the clamping end of front end, changes the size of gap slot by pulling the speeder wrench 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 post on the guide pad, the end of the guide post is threaded through the grip slipper.

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

1, beneficial effects of the present invention are：It is reasonable for structure, spray gun spraying can be effectively controlled after stretching, extension or retraction, made Used time is very reliable.

2, the first mounting base and the second mounting base are split type structure, and support tube is also dismountable seperated with connecting seat Formula structure, and support tube is connect with spray gun, so when dismantling installation, it is only necessary to remove support tube from connecting seat, just The separation that can realize spray gun and extension rod has the advantages that effect easy to disassemble, and can also realizing transmission screw motion.

3, by the clamping of positioning pin and open slot, head rod is made to be fixed with lock, and the one end latched passes through Rotational pin is fixed in the second connecting rod, it is only necessary to rotation lock, it will be able to and so that it is corresponded to one end of head rod and tilts, this Sample can be such that positioning pin is detached with open slot, this makes it possible to extract head rod out out of second mounting base, to make Support tube is detached with connecting seat, that is, the first mounting base is made to be detached with the second mounting base.

4, plunger knob can be such that positioning pin and open slot is clamped, and so that support tube is fixed in mounting base, due to plunger spiral shell Column can be threadedly attached in mounting base, so that 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 made to overcome the elastic force of latch spring, positioning pin is located in open slot at this time, and head rod is fixed on one with lock It rises, when rotation pulls plunger rod, plunger rod overcomes the elastic force of plunger spring, is detached from lock, and lock is snapped spring top It rises, positioning pin is detached with open slot, and head rod can be extracted out from the second mounting base, and this dismountable structure is very Reliably, it and removes and is 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 vertical view of the scalable extension rod of the present invention；

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

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

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

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

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

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

In figure, 100, handle trigger component；200, outer tube；210, guide support pipe；300, quick clip assembly；310, it presss from both sides Body；311, gap slot；312, end is clamped；313, hold-down bolt；320, speeder wrench；400, telescoping tube；410, connecting seat； 420, plunger knob；421, plunger stud；422, plunger rod；423, plunger spring；430, support tube；440, guide pad；441, Guide post；450, end cap；510, the first mounting base；520, the second mounting base；530, traction rope；540, head rod；550, Two connecting rods；560, linkage block；561, latch spring；570, it latches；571, positioning pin；580, rotational pin；600, screw rod；710, Grip slipper；720, gripper jaw；721, the end of thread；730, hinge plate；800, pull rod.

Specific implementation mode

Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described, However, the present invention is not limited to these examples.

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, telescoping tube 400, affects component, screw rod 600, clamp assemblies and pull rod 800 at outer tube 200, outer tube 200 and stretches The draw 400 is socketed, and telescoping tube 400 can be pulled out or be retracted in an axial direction in outer tube 200, and handle trigger component 100 can lead to Pull rod 800 is crossed to affect screw rod 600, screw rod 600 pulls again affects component, and the trigger of component and spray gun is affected to be connected, from And for controlling spray gun work.

Handle trigger component 100, is fixed on the rearmost end of outer tube 200, handle trigger component 100 include handle and Trigger, by pulling trigger, it will be able to pull pull rod 800, it is very easy to use, and handle trigger component 100 with it is outer Pipe 200 is to be detachably connected, and is easily installed and repairs.

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

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

Telescoping tube 400 is the pipe that an outer diameter is less than 200 internal diameter of outer tube, this makes it possible to be plugged in outer tube 200, this Place it is worth noting that, the rear end of telescoping tube 400 is threaded through in the outer tube 200, and passes through the quick clip assembly 300 and institute The holding of outer tube 200 is stated to be 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 then unclamps the one end for clamping telescoping tube 400, so that telescoping tube 400 is slided, work as adjusting when needing flexible When the stroke of good telescoping tube 400, then front end is clamped, telescoping tube 400 is made to be kept fixed with outer tube 200.

It is provided with connecting seat 410 on the front end of the telescoping tube 400, is plugged on the connecting seat 410 for connecting spray The support tube 430 of rifle；It is worth noting that, a connector sleeve, connector sleeve and connecting seat can also be worn in connecting seat 410 herein 410 cooperations, can play better connection function；The fixation of support tube 430 is threaded through in connector sleeve, and is connect with spray gun, to Spray gun is fixed on to the front end of the extension rod.

It is a kind of linkage mechanism to affect component, is divided into first half and latter half, and first half one end is located at institute It states in support tube 430, one end of latter half is located in the connecting seat 410, the trigger for pulling the spray gun.

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

It is worth noting that, although with thread on screw rod 600, but it, which is not, is connected through a screw thread to realize herein It is axially moved, but is pressed from both sides by clamp assemblies by the thread increasing friction force on screw rod 600 to coordinate with clamp assemblies Firmly screw rod 600, and axially pull screw rod 600.

Clamp assemblies be it is a kind of can pull the mechanism of screw rod 600 by being clamped, be arranged in 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 the screw rod 600 to be clamped, 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, the centre bore that there are one tools wears for screw rod 600, two Side is to hinged gripper jaw 720；The quantity of gripper jaw 720 is two, is respectively hinged at the both ends of grip slipper 710, and two folders Holding pawl 720 can rotate towards the direction of screw rod 600, 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 with the front side of two gripper jaws 720 respectively, two hinge plates 730 lower end is hinged on pull rod 800, by pushing hinge plate 730, it will be able to gripper jaw 720 be forced 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 When two 720 clamping screws 600 of gripper jaw, two hinge plates 730 form V-arrangement.

Pull rod 800 is located in the telescoping tube 400, and one end of the pull rod 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 rod 800 can be hinged simultaneously by axis pin and two hinge plates 730.

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

When needing to control spray gun, then handle trigger component 100 is pulled, to pull pull rod 800, pull rod 800 to be pulled rearward It is dynamic, to drive two hinge plates 730 to rotate, to make two gripper jaws 720 clamp screw rod 600, and drive screw rod 600 backward It is mobile；Make when screw rod 600 moves backward, can drive and component is affected to move backward, 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 by Telescoping tube 400, which changes telescopic location, to be influenced.

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

First mounting base 510 and the second mounting base 520 are half-round tubular structure, and this split type structure, which has, to be convenient for The advantages of dismounting, first mounting base 510 are arranged in the support tube 430, and second mounting base 520 is arranged described In connecting seat 410, support tube 430 is dismountable split structure with connecting seat 410, and support tube 430 is connect with spray gun, So when dismantling installation, it is only necessary to remove support tube 430 from connecting seat 410, can be achieved with point of spray gun and extension rod From, and also have the function of that transmitting screw rod 600 moves.

The head rod 540 is movably arranged in first mounting base 510 and the head rod 540 Rear end is threaded through in second mounting base 520, and second connecting rod 550 is arranged in second mounting base 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 traction rope Trigger of 530 both ends respectively with the head rod 540 and the spray gun is connected.

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

As shown in Fig. 3, Fig. 4, Fig. 8, on the basis of the above embodiment, described to affect component further include linkage block 560 And lock 570, the linkage block 560 is arranged in the bottom of second mounting base 520, and can be in second mounting base It is slided on 520, head rod 540 is flat strip shaped structure, and there are one for head rod for the front end face tool of the second mounting base 520 540 openings worn, head rod 540 passes through the opening, and is connected with the second connecting rod 550 by lock 570.

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

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

Open slot, the lock are offered on the rear end that the head rod 540 is located in second mounting base 520 570 front end is provided with positioning pin 571, and the positioning pin 571 is connected in the open slot, to make the head rod 540 are connected with second connecting rod 550.

This linked manner has the advantages that convenient disassembly, by the clamping of positioning pin 571 and open slot, makes the first connection Bar 540 is fixed with lock 570, and one end of lock 570 is fixed on by rotational pin 580 in the second connecting rod 550, it is only necessary to Rotation lock 570, it will be able to make it correspond to one end of head rod 540 and tilt, this makes it possible to make positioning pin 571 and opening Slot detaches, this makes it possible to extract head rod 540 out out of second mounting base 520, to make support tube 430 and connecting seat 410 separation, that is, the first mounting base 510 is made to be detached with the second mounting base 520.

It is said from linkage principle, the second connecting rod 550, lock 570 and linkage block 560 are fixed together, can be together Movement, head rod 540 is connect 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 can also pull linkage block 560 by rotational pin 580.

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

Since lock 570 is hinged in the second connecting rod 550, so latch spring 561 can be by 570 top of lock It rises, when making lock 570 not by outer force effect, positioning pin 571 is constantly in open slot to be detached.

The plunger knob 420 includes plunger stud 421 and plunger rod 422, is provided with and is threaded on connecting seat 410 There is external screw thread and through-hole, the plunger stud 421 to be threaded in the connecting seat 410 for the sheath in hole, plunger stud 421 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 are the rod-like structure with handle, and plunger spring 423 is arranged in 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 contradicts on the inner wall of the through-hole of plunger stud 421, and lower end contradicts on the boss of 422 lower end of plunger rod, To push up plunger rod 422 downwards by the elastic force of itself, that is, plunger rod 422 is pushed up to the upper surface for arriving lock 570, from And the positioning pin 571 is limited in the open slot.

What plunger knob 420 can play is fixed on support tube 430 in mounting base, since plunger rod 422 can be worn It in plunger stud 421, and can pull up and down, and plunger rod 422 is withstood on the upper end of lock 570 by plunger spring 423 On face, this makes it possible to the elastic force for making lock 570 overcome latch spring 561 to move downward, and positioning pin 571 is located at open slot at this time Interior, head rod 540 is fixed together with lock 570.

When plunger rod 422 pulls up, plunger rod 422 overcomes the elastic force of plunger spring 423, and this makes it possible to from lock When being detached on 570, lock 570 is snapped the jack-up of spring 561, and positioning pin 571 is detached with open slot, 540 energy of head rod Enough to be extracted out from the second mounting base 520, this dismountable structure is very reliable, and removes and be convenient to.

It is worth noting that, the upper surface of plunger stud 421 is slope, and plunger rod 422 is only needed when pulling herein It rotates, it will be able to be pulled up by the slope, be exactly Rotational Cylindrical stopper rod 422 in simple terms, plunger rod 422 is rotating When can pull up, to make it 570 be detached with lock.

Since the first mounting base 510 is located in support tube 430, the second mounting base 520 is located in connecting seat 410, first will branch Stay tube 430 is plugged into connecting seat 410, and the rear end of head rod 540 passes through the second mounting base 520 at this time, 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, positioning pin 571 is caught in open slot, and support tube 430 is made to be fixed in mounting base, to realize easy-to-dismount purpose；And And screw rod 600 when pulled, the second connecting rod 550 pull linkage block 560 and lock 570, lock 570 pull first connection Bar 540, head rod 540 pull traction rope 530, to realize the purpose of control spray gun work.

As shown in Fig. 3, Fig. 6, Fig. 7, on the basis of the above embodiment, it is fixedly installed and leads in the telescoping tube 400 To block 440, the pull rod 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 and the length of pull rod 800 are also very long, so need guide pad 440 come screw 600 with And the moving direction of pull rod 800, so that it is moved according to the direction of design, and can also move it more smooth.

As shown in Fig. 3, Fig. 6, on the basis of the above embodiment, guide support pipe is provided in the outer tube 200 210, 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 the role of support guide block 440, and screw rod 600 also passes through the guide support pipe 210 It is interior, the movement of screw 600 and support guide block 440 can be played in this way.

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

The clamping principle of the quick clip assembly 300 is exactly to clamp two different pipes of bore in itself by clamp 310 Son, since the different telescoping tube 400 of bore and outer tube 200, and clamp 310 can be clamped in two clamping ends 312 respectively Itself is integral, to make telescoping tube 400 be kept fixed with outer tube 200.

As shown in figure 3, on the basis of the above embodiment, being provided on 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 avoided to be taken off from outer tube 200 From.

As shown in Fig. 3, Fig. 6, Fig. 7, on the basis of the above embodiment, guide post is provided on the guide pad 440 441, the end of the guide post 441 is threaded through the grip slipper 710.

Specific embodiment described herein is only an example for the spirit of the invention.Technology belonging to the present invention is led The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.

Claims

1. a kind of scalable extension rod, which is characterized in that including：

Handle trigger component；

Telescoping tube, one end are threaded through in the outer tube, and are relatively fixed by the quick clip assembly and outer tube holding, It is provided with connecting seat on the other end of the telescoping tube, the support tube for connecting spray gun is plugged on the connecting seat；

Component, 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 are 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 are set in outside the screw rod, and one end of the gripper jaw is hinged on the grip slipper separately Have on one end for the screw flight end to be clamped, and the other end of the hinge plate and the gripper jaw is hinged；

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

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

3. scalable extension rod as described in claim 2, it is characterised in that：It is described affect component further include linkage block and Lock, the linkage block are arranged in second mounting base and can be slided in second mounting base, the lock setting In the linkage block, it is equipped with rotational pin in second connecting rod, the rotational pin passes through the lock and described Motion block, the lock can be rotated around the rotational pin, be opened on the rear end that the head rod is located in second mounting base Equipped with open slot, the front end of the lock is provided with positioning pin, and the positioning pin is connected in the open slot, described to make Head rod is connected with second connecting rod.

4. scalable extension rod as described in claim 3, it is characterised in that：It is provided with plunger knob on the connecting seat, It is provided in the linkage block for contradicting the latch spring in the lock lower face, the plunger knob includes plunger spiral shell Column, plunger rod and plunger spring, the plunger stud are fixed on the connecting seat, and the plunger rod is threaded through the plunger In stud and it can be set on the plunger rod along the axial movement of the plunger stud, the plunger spring and its both ends difference It contradicts and connects with the plunger rod and the plunger stud, the plunger rod is contradicted by the elastic force of the plunger spring in institute Lock upper surface is stated, to which the positioning pin to be limited in the open slot.

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

6. scalable extension rod as described in claim 5, it is characterised in that：Guide support pipe is provided in 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. scalable extension rod as described in claim 6, it is characterised in that：The quick clip assembly includes clamp and fast Fast spanner, is provided with gap slot and two clamping ends for corresponding to gap slot both sides respectively on the clamp, and one Hold-down bolt is provided on the clamping end, the speeder wrench is arranged on another clamping end, by pulling Speeder wrench is stated to change the size of gap slot to embrace the telescoping tube.

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

9. scalable extension rod as described in claim 5, it is characterised in that：Guide post is provided on the guide pad, it is described The end of guide post is threaded through the grip slipper.