CN208108926U - A kind of built-in unlocking mechanism of flexible reverse drawing - Google Patents

Abstract

The utility model discloses a kind of flexible built-in unlocking mechanisms of reverse drawing, including unlock driving mechanism, latching device and telescopic unlock reverse drawing bar；Telescopic unlock reverse drawing bar is equipped between unlock driving mechanism and latching device；Unlocking method is to give telescopic one reversal interlocking relay of unlock reverse drawing bar by unlocking driving mechanism, is unlocked by reversal interlocking relay to latching device.Utilize the structure of the utility model, unlock rod solution lock end is arranged backwards, unlock rod the space occupied is small, and after baton retracts, telescopic unlock reverse drawing bar can be folded, so that there are enough use spaces in the inner cavity of holding rod, space can be made full use of, and has used telescopic unlock reverse drawing bar, therefore, stable structure, maintenance cost are low.

Description

A kind of built-in unlocking mechanism of flexible reverse drawing

Technical field

The utility model relates to batons, the especially baton of reverse drawing unlock.

Background technique

Retractable spontoon is a kind of alert tool, and retractable spontoon is retracted position when unused, using then by throwing away use.

There are mainly two types of structures for current retractable spontoon, and one is resistance structure, another kind is to realize lock by mechanical structure Only and unlock.

Chinese Patent Application No. be 201710269991.7 applyings date be 2017.4.24 patent document in disclose one Kind Telescopic spontoon.Including outer tube；Middle pipe；After manage；Middle pipe locking mechanism；Pipe locking mechanism afterwards；Unlocking mechanism；Impact head, Feature is：Middle pipe locking mechanism includes the first drum butterfly, the second drum butterfly and a pair of drum abjusting spring, and the first drum butterfly slides with the first drum butterfly Vallecular cavity is slidably matched, and there is the first drum butterfly ear in the first drum butterfly side of lumen in, and the central location of the first drum butterfly ear has first Butterfly solution lockhole is roused, there is the first drum butterfly protecting against shock slot on the right side of the first drum butterfly, the second drum butterfly side of lumen in has second to rouse Butterfly ear, the second position for rousing on butterfly ear and corresponding to the first drum butterfly solution lockhole set the second drum butterfly solution lockhole, the right side of the second drum butterfly There is the second drum butterfly protecting against shock slot, a pair of drum abjusting spring is supported between the first drum butterfly and the second drum butterfly.Ensure the left end of middle pipe with The right end positive lock of outer tube, the left end of rear pipe is same as the right end of middle pipe can be by positive lock.The unlocking mechanism includes The left end mating of support cap, unlock rod fixing seat, unblock button, unlock spring and unlock rod, support cap and the outer tube and It is insinuated into the outer lumen, which has a unlock spring cavity, unlock rod fixing seat and the bearing for being provided with support cap The unlock rod fixing seat matching hole of the central location of base wall is slidably matched, and the position that unblock button corresponds to unlock spring cavity is set It sets, unlock spring is located in unlock spring cavity, and one end of the springlock spring is supported on unblock button towards unlock rod fixing seat Side, and the other end for unlocking spring is supported on the support cap bottom wall towards the side of unlock spring cavity, and unlock rod is located at In the outer lumen, the unlock rod left end constitute have a screw head, the screw head successively screw in unlock rod fixing seat with And unblock button, it is formed with a unlock rod guide head in the right end of unlock rod, the unlock rod guide head and the first drum butterfly It solves lockhole and the second drum butterfly solution lockhole is corresponding.

The Telescopic spontoon of above structure, when unused, middle pipe and rear pipe are retracted in outer tube, and unlock rod promotes first Drum dish, the second drum dish overcome bulging dish spring to move inwardly, and equally, unlock rod promotes third drum dish, the 4th drum dish to overcome bulging dish Spring moves inwardly.Such as need to hold outer tube using baton, throw away middle pipe and rear pipe outward, at this time in pipe locking mechanism with It is moved with middle pipe, rear pipe locking mechanism is moved with subsequent pipe, when the first drum dish and the second drum dish move at unlock rod guide head When, the first drum dish and the second drum dish move out under the action of drum dish spring, and the first drum dish and second rouses dish holding to middle pipe In lock slots, when pipe locking mechanism is moved at guide head in the middle, rear pipe locking mechanism has been detached from unlock rod, when after pipe lock When after mechanism kinematic arriving at pipe lock slots, third drum dish and the 4th drum dish move out under the action of drum dish spring, third drum After dish and the 4th drum dish holding are arrived in pipe lock slots.Such as need to withdraw baton, being unlocked by pressing mechanism, unlock rod is applied to the first drum Dish and the second drum dish, under the action of unlock rod, the first drum dish and the second drum dish overcome the elastic force of bulging dish spring inwardly to move, the Pipe lock slots in one drum dish and the second drum dish disengaging, middle pipe is retracted into outer tube, while rear pipe follows middle pipe to move, and pipe contracts in the middle After returning to outer tube in place, being unlocked by pressing mechanism, unlock rod is applied to third drum dish and the 4th drum dish, under the action of unlock rod, Third drum dish and the 4th drum dish overcome the elastic force of bulging dish spring inwardly to move, and pipe locks after third drum dish and the 4th drum dish disengaging Slot, rear pipe are retracted into middle pipe.The structure, to realize in pipe and rear pipe throw away locking, middle pipe lock slots have to close to outside The rear end of pipe is arranged, and rear pipe lock slots have to be arranged close to the rear end of middle pipe, in this way, the length of unlock rod is bound to occupy outside Most of position of pipe axial space, and guide head needs backwards, and after pipe and rear pipe retract in the middle, outer tube internal cause is unlocked bar It occupies and does not utilize space more.In addition, unlock rod needs are fixedly connected with unlocking mechanism is just able to achieve above-mentioned stretch The function of formula baton.

Chinese Patent Application No. be 201310422167.2 applyings date be 2013.9.16 patent document in disclose one The pushing handle telescopic control mechanism of kind baton, the pushing handle telescopic control mechanism include an arrestment mechanism and a relieving mechanism, wherein the arrestment mechanism It is located on an interior tube body position of neighbouring one end, the other end of the interior tube body can be and outer by this by one end of an outer tube body The other end of tube body exposes, in addition, the inner wall of its neighbouring other end is equipped with a blocking groove in the outer tube body, when the interior tube body One end against the other end to the outer tube body when, an at least brake block for the arrestment mechanism can be expanded outwardly because of elastic force, and embedding Enter to the blocking groove, the tube body extends and one length of formation is stick-like, in addition, the relieving mechanism is installed in the one of the outer tube body End, when one end of the relieving mechanism is pressed, the other end can be inserted into a relief hole of the arrestment mechanism, to discharge the braking Block makes the brake block inside contract and no longer be embedded in the blocking groove, which is condensed in the outer tube body and formation one is short It is stick-like.The relieving mechanism has a release body of rod, and the pushing handle telescopic control mechanism which records is with Chinese Patent Application No. 201710269991.7 Telescopic spontoon it is essentially identical, the problem of equally existing is：It completes to brake and discharge, release lever The length of body is bound to most of position of outer tube body axial space to be occupied, and the free end for discharging the body of rod need backwards, when After interior tube body retracts, outer tube body internal cause is released the body of rod and occupies not more using space.In addition, the release body of rod needs The function of being just able to achieve above-mentioned Telescopic spontoon is fixedly connected with relieving mechanism.

Applicant has applied for a kind of entitled negative drawing unlock retractable spontoon, including holding rod and strike bar, hits bar One end is plugged in holding rod；Card slot is equipped in the front inner wall of holding rod；It is connected with unlock driving mechanism in the rear end of holding rod, The rear end of strike bar is connected with unlocking mechanism, and connector is equipped between unlock driving mechanism and unlocking mechanism；The unlock Mechanism includes deck, snap ring, unlock rod and elastic component, and deck is connected on strike bar, and blocking part is equipped in deck, It is equipped with accommodating cavity in deck, the sliding vallecular cavity communicated with accommodating cavity radially extended is equipped on deck, snap ring is located at appearance It sets intracavitary and passes through sliding vallecular cavity, snap ring can cooperate with card slot, and unlock rod passes through blocking part and snap ring, unlock rod packet Big end and small end are included, small end is connected to the rear end of big end, is connected in small end and keeps out pull ring portion, keeps out pull ring portion Positioned at the rear end of blocking part, blocking part, which is withstood, keeps out pull ring portion, and elastic component is connected between unlock rod and deck, and connector connects It connects and is keeping out between pull ring portion and unlock driving mechanism.It is drawstring that connector, which uses, but during actual experiment, repeatedly Go out rod and receive rod during, drawstring is easy to be pulled off, so that the birthday noodle of baton are short, structure is unreliable, maintenance frequently, cost It is high.

Summary of the invention

The purpose of the utility model is to provide a kind of flexible built-in unlocking mechanisms of reverse drawing.Utilize the knot of the utility model Structure, unlock rod solution lock end are arranged backwards, and unlock rod the space occupied is small, and after baton retracts, telescopic unlock reverse drawing bar can It folds, so that there are enough use spaces in the inner cavity of holding rod, space can be made full use of, and used telescopic unlock reverse drawing Bar, therefore, stable structure, maintenance cost is low.

In order to achieve the above objectives, a kind of built-in unlocking mechanism of flexible reverse drawing, it is characterised in that：Including unlocking driving machine Structure, latching device and telescopic unlock reverse drawing bar；Telescopic unlock reverse drawing is equipped between unlock driving mechanism and latching device Bar；

The unlock driving mechanism includes pedestal, driving plate, link mechanism and resetting-mechanism, and driving plate is located at pedestal Interior, link mechanism and driving plate act on, and resetting-mechanism is located between pedestal and driving plate；

The latching device includes deck, unlock rod, elastic component and holding device, and deck has axially extending lead to Hole, holding device are located on deck, and unlock rod passes through through-hole or extend into through-hole from the front end of deck, and unlock rod and holding fill The effect of setting, elastic component are located between deck and unlock rod；

The telescopic unlock reverse drawing bar includes the telescoping tube of two sections or more, the mutual sliding plug of adjacent telescoping tube, It is equipped with limiting device between adjacent expansion pipe, one end of unlock rod is connected to close to the telescoping tube of unlock rod, far from unlock rod one The telescoping tube at end is connected in unlock driving mechanism.

Above structure, under the premise of not giving unlock rod reversal interlocking relay, unlock rod will not be under the action of the elastic member After move.It such as needs to unlock, presses driving plate, driving plate drive link mechanism overcomes the power of resetting-mechanism to give telescopic unlock One pulling force of reverse drawing bar, telescopic unlock reverse drawing bar drive unlock rod that the elastic force of elastic component is overcome to move backward, are promoted by unlock rod It moves the outer end of holding device inwardly, realizes unlock.In this configuration, by reversely installing unlock rod, and it is real using pulling force It now unlocks, unlock rod the space occupied is small, and telescopic unlock reverse drawing bar is contracted, the telescopic unlock reverse drawing bar phase of retraction When in the length of a telescoping tube, therefore, telescopic unlock reverse drawing bar and latching device the space occupied are small, moreover, using stretching Contracting formula unlocks reverse drawing bar, and telescopic unlock reverse drawing bar is less likely to be damaged, and improves the service life of baton, reduce repair at This.

Further, the hole of bead of the more than one circle distribution radially extended communicated with through-hole is equipped on deck, The holding device is the ball being located in the hole of bead；The unlock rod includes the body of rod and the unlock for being connected to body of rod rear end Section, the outer diameter of the body of rod are less than the outer diameter of unlock section, and the telescoping tube close to unlock rod is connected in unlock section.The structure, using rolling Pearl structure then converts sliding friction for rolling friction, and therefore, frictional force is small.Above structure, since the outer diameter of the body of rod is less than Unlock section outer diameter, therefore, when ball with unlock fragment position to it is corresponding when ball be ejected, at body of rod position, ball has return Space.

Further, the sliding vallecular cavity communicated with through-hole radially extended is equipped on deck, the holding device is Snap ring, snap ring pass through sliding vallecular cavity, and unlock rod includes big end and small end, after small end is connected to big end End, the telescoping tube close to unlock rod are connected in small end.Above structure, when not unlocking, snap ring in radial directions Corresponding with the position of small end, unlock rod does not have active force to snap ring, such as needs to unlock, and gives unlock rod one and reversely draws The big end of power, unlock rod squeezes snap ring, and snap ring bounces back under the action of big end, realizes unlock.

Further, it is equipped with baffle in the front end of unlock rod, elastic component is covered in the unlock being located on baffle and deck On bar；It is equipped with annular groove on the rear end outer wall of deck, is equipped with elastic ring in a ring groove.

Further, there is chamfering between the body of rod and unlock section.During allowing ball and unlock section overhead, pass through setting Chamfering, and ball is spherical shape, and therefore, ball is more easier to enter from the body of rod from unlock section.

Further, interconnecting piece is equipped between big end and small end, interconnecting piece is in truncated cone-shaped.In this way, being solved pulling When locking bar, it is easier that big end is allowed to be inserted into snap ring by interconnecting piece.

Further, the telescoping tube in telescopic unlock reverse drawing bar is sequentially reduced from front end rear end diameter；The limit Position device be located on wherein flexible inside pipe wall one end in keep out ring and be located on the outer wall of adjacent expansion pipe one end outer supports Baffle ring, the outer ring of keeping out in same limiting device are located at the interior front for keeping out ring；Interior limit is equipped on the rear end inner wall of unlock rod Position ring, extend on one end outer wall in unlock rod in the telescoping tube close to unlock rod and is equipped with outer stop collar, and outer stop collar is located at The front of interior stop collar is inserted into unlock rod close to what the telescoping tube of unlock rod slided.The structure, when telescopic unlock reverse drawing After bar recycling, telescopic unlock reverse drawing bar can be hidden in unlock rod by interior completely, in this way, the telescopic unlock reverse drawing bar of recycling There is no need to other occupied spaces.Due to keeping out ring inside and outside being provided with, when applying reversal interlocking relay, will not therefore stretch The deformation of pipe and adjacent telescoping tube is detached from, this it is telescopic unlock reverse drawing bar stress it is more reliable.Due to being provided with Therefore inside and outside stop collar when applying reversal interlocking relay, will not make telescoping tube be detached from solution because of the deformation of telescoping tube and unlock rod The stress of locking bar, the structure is more reliable.

Further, the pedestal has the accommodating cavity that middle part is extended forwardly to from rear end, has in the front end of pedestal Extend rearward to the cavity of accommodating cavity；The driving plate is located in accommodating cavity；The link mechanism includes first connecting rod, Two connecting rods and third connecting rod are hinged on the pedestal of side within the cavity in the middle part of first connecting rod, the middle part hinge of second connecting rod Connect it is within the cavity and on the pedestal of first connecting rod opposite side, the both ends of third connecting rod be equipped with waist type groove, third connect Between first connecting rod and second connecting rod, pass through between the waist type groove of one end of the front end and third connecting rod of first connecting rod has bar First sliding pin, the rear end of first connecting rod are located at the front of driving plate, the waist of the other end of the front end and third connecting rod of second connecting rod Passing through between type groove has the second sliding pin, and the rear end of second connecting rod is located at the front of driving plate；The resetting-mechanism includes pull rod And reset spring, pull rod pass through pedestal and are connected in driving plate, reseting spring sleeve is in the pull rod between pedestal and driving plate On；The telescopic unlock reverse drawing bar is connected to the middle part of third connecting rod.

The structure, under the action of resetting-mechanism, driving plate receives power backward always, when giving driving plate one forward Power when, driving plate overcomes the elastic force of reset spring to travel forward, and driving plate drives first connecting rod and second connecting rod to swing, thus It drives third connecting rod to move backward in parallel, reversal interlocking relay is provided.In this configuration, due to being provided with waist type groove, when first Connecting rod and second connecting rod can then drive third connecting rod to move along a straight line when swinging, which does not use swing rod structure, allow telescopic solution Lock reverse drawing bar is connected to the middle part of third connecting rod, allows the uniform force of telescopic unlock reverse drawing bar.

Detailed description of the invention

Fig. 1 is the perspective view of Telescopic spontoon.

Fig. 2 is the exploded view of 1 Telescopic spontoon of embodiment.

Fig. 3 is main view when embodiment 1 hits bar stretching based on Telescopic spontoon.

Fig. 4 is A-A cross-sectional view in Fig. 3.

Fig. 5 is B-B cross-sectional view in Fig. 4.

Fig. 6 is the schematic diagram that embodiment 1 hits Telescopic spontoon after bar recycling.

Fig. 7 is the exploded view for unlocking driving mechanism.

Fig. 8 is the top view for unlocking driving mechanism.

Fig. 9 is C-C cross-sectional view in Fig. 8.

Figure 10 is the perspective view of 1 latching device of embodiment.

Figure 11 is the exploded view of 1 latching device of embodiment.

Figure 12 is the cross-sectional view of 1 latching device of embodiment.

Figure 13 is the exploded view of telescopic unlock reverse drawing bar.

Figure 14 is the exploded view of 2 Telescopic spontoon of embodiment.

Figure 15 is main view when 2 Telescopic spontoon of embodiment hits bar stretching.

Figure 16 is D-D cross-sectional view in Figure 15.

Figure 17 is E-E cross-sectional view in Figure 16.

Figure 18 is the schematic diagram that embodiment 2 hits Telescopic spontoon after bar recycling.

Figure 19 is the perspective view of 2 latching device of embodiment.

Figure 20 is the exploded view of 2 latching device of embodiment.

Figure 21 is the cross-sectional view of 2 latching device of embodiment.

Specific embodiment

The present invention will be further described in detail with reference to the accompanying drawings and detailed description.

Embodiment 1.

As shown in Figures 1 to 6, Telescopic spontoon includes holding rod 1, strike bar 2, unlock driving mechanism 3,4 and of latching device Telescopic unlock reverse drawing bar 5.The rear end of strike bar 2 is plugged in holding rod 1.

In the present invention, referring to Fig. 3, the left end in view is rear end, and the right end of view is front end.

The built-in unlocking mechanism of flexible reverse drawing of the utility model includes unlock driving mechanism 3, latching device 4 and telescopic Unlock reverse drawing bar 5.

As shown in Figures 1 to 6, card slot 11 is equipped in the front inner wall of holding rod 1, in the front that holding rod is located at card slot 11 Wall is equipped with annular groove 12, and elastic ring 110 is equipped in annular groove 12, and internal screw thread is equipped on the rear end inner wall of holding rod 1.

It is equipped with internal screw thread in the rear end of strike bar 2, is equipped with internal screw thread in the front inner wall of strike bar 2.

As shown in Figure 7 to 9, the unlock driving mechanism 3 includes pedestal 31, driving plate 32, link mechanism 33 and answers Position mechanism 34.

Pedestal 31 has pan frontward end 312 and base rear end 311, and the diameter of base rear end 311 is greater than pan frontward end 312 Diameter is equipped with external screw thread on the outer wall of pan frontward end 312, and the external screw thread and the screw-internal thread fit of 1 rear end of holding rod connect pedestal It is connected on holding rod 1；Escape 310 is equipped between pan frontward end 312 and base rear end 311.The pedestal 31 has from rear End extends forwardly to the accommodating cavity 313 at middle part, has the cavity 314 for extending rearward to accommodating cavity 313 in the front end of pedestal 31, holds The section of chamber 313 is set as circle, the section of cavity 314 is rectangle.

The driving plate 32 is located in accommodating cavity 313.

The link mechanism 33 includes first connecting rod 331, second connecting rod 332 and third connecting rod 333, first connecting rod 331 Middle part be hinged on the pedestal 31 of side in cavity 314 by the first articulated shaft 334, set on the first articulated shaft 334 The slot for having blind hole or radially extending is equipped with the screw 338 for extending into blind hole or slot on pedestal 31, in this way, first can be prevented Articulated shaft 334 moves axially, and first connecting rod 331 is avoided to be detached from pedestal 31；The middle part of second connecting rod 332 passes through the second articulated shaft 335 be hinged in cavity 314 and on the pedestal of first connecting rod opposite side 31, on the second articulated shaft 335 be equipped with it is blind Hole or the slot radially extended are equipped with the screw 339 for extending into blind hole or slot on pedestal 31, in this way, can prevent second hinged Axis 335 moves axially, and second connecting rod 332 is avoided to be detached from pedestal 31；It is equipped with waist type groove 3331 at the both ends of third connecting rod 333, the Three-link 33 is between first connecting rod 331 and second connecting rod 332, the front end of first connecting rod 331 and one end of third connecting rod 333 Waist type groove between pass through have the first sliding pin 336, the rear end of first connecting rod 331 is located at the front of driving plate 32, second connecting rod 332 Front end and third connecting rod 333 the other end waist type groove between pass through and have the second sliding pin 337, the rear end position of second connecting rod 332 In the front of driving plate 32.

The resetting-mechanism 34 includes pull rod 341 and reset spring 342, and pull rod 341 is bolt, before pull rod passes through pedestal End 312 is threadedly attached in driving plate 32 through accommodating cavity, 342 sets of reset spring be located at pan frontward end and driving plate 32 it Between pull rod 341 on.

As shown in Figure 10 to Figure 12, latching device 4 includes deck 41, unlock rod 42, elastic component 43 and energy holding to card slot Interior holding device 45.

Deck 41 includes deck rear end 411 and deck front end 412, and external screw thread is equipped on deck front end 412, outer by this Screw thread connect the rear end that deck 41 is connected to strike bar 2 with the internal screw thread of strike rod rear end.Deck 41 has axially extending Through-hole 413 is equipped with the counter sink 414 coaxial with through-hole 413 in the front end of deck, is equipped with and through-hole 413 on deck rear end 411 The hole of bead 415 of the more than one circle distribution radially extended communicated, the holding device 45 are the rolling being located in the hole of bead Pearl 451；Mountable multiple balls 451 in the same hole of bead.

Unlock rod 42 is hollow structure, and unlock rod passes through through-hole or extend into through-hole from the front end of deck, the solution Locking bar 42 includes the body of rod 421 and the unlock section 422 for being connected to 421 rear end of the body of rod, and the outer diameter of the body of rod 421 is less than unlock section 422 Outer diameter, has a chamfering 425 between the body of rod 421 and unlock section 422, i.e. chamfered transition, in this way, allowing ball 451 and unlock section 422 During overhead, by the way that chamfering is arranged, and ball is spherical shape, and therefore, ball is more easier to enter from the body of rod from unlock section. Baffle 423 is equipped in the front end of the body of rod 421.The elastic component is spring, and 43 sets of elastic component are being located at baffle 423 and are sinking On unlock rod in head bore, spring can be limited using counter sink.

It is equipped with annular groove 416 on the rear end outer wall of deck, is equipped with elastic ring 46 in a ring groove.In general, such as Fig. 4 It is shown, it is equipped with groove 61 in the front inner wall that holding rod 1 is located at card slot, elastic ring 62 is equipped in groove, and due in deck Elastic ring also is provided on 41, therefore, when hit bar 2 stretch out after, at the both ends of card slot by elastic ring, elastic ring can allow holding rod and Hit bar between gap it is small, and two elastic rings by holding rod and strike bar between uniform force, therefore, strike bar relative to Holding rod is not easy to shake.

As shown in figure 12, interior stop collar 424 is equipped on the rear end inner wall of unlock rod.

Strike bar inner wall on be equipped with clamping groove 91, snap ring 92 is equipped on clamping groove 91, strike pipe in be equipped with Snap ring connection or the jacking block 93 by snap ring overhead, jacking block 93 are used to limit the front end of unlock rod, and unlock rod is avoided to be detached from from deck, Improve the reliability used.It is of course also possible to limit unlock rod by the way that limits device is arranged between deck and unlock rod Position, outward flange such as is set in the rear end of unlock rod, outward flange is withstood by deck, the structure, baffle and unlock rod Between need to be connected through a screw thread, in this way, unlock rod could be installed, naturally it is also possible to be that limiting slot is arranged in deck, solve Locking bar is equipped with limited block, and limited block is located in limiting slot, limits unlock rod by the interaction of limited block and limiting slot.

As shown in Fig. 2,4,5 and Figure 13, the telescopic unlock reverse drawing bar 5 includes the telescoping tube 51 of two sections or more, phase The adjacent mutual sliding plug of telescoping tube, the telescopic telescoping tube unlocked in reverse drawing bar are sequentially reduced from front end rear end diameter；Phase Between adjacent telescoping tube be equipped with limiting device, the limiting device be located on wherein flexible inside pipe wall one end in keep out ring 512 and be located on the outer wall of adjacent expansion pipe one end it is outer keep out ring 511, the outer ring of keeping out in same limiting device is located at interior keep out The front of ring.It is extend on one end outer wall in unlock rod in the telescoping tube close to unlock rod and is equipped with outer stop collar 50, outer limit Ring 50 is located at the front of interior stop collar 424, is inserted into unlock rod close to what the telescoping tube of unlock rod slided.Far from unlock rod one The telescoping tube at end is threadedly attached to the middle part of third connecting rod, except the telescoping tube connecting with third connecting rod can be solid or hollow Outside, other telescoping tubes are hollow structure.

Above structure, under the premise of not giving unlock rod reversal interlocking relay, unlock rod will not be backward under the action of the spring Movement, when hitting bar retracted state, ball is corresponding with the position of the body of rod in radial directions, and since the outer diameter of the body of rod is less than The outer diameter of section is unlocked, therefore, stuck phenomenon will not occur with holding rod inner wall in ball.It such as needs using throwing away forward or pull out Bar is hit, ball is corresponding with the position of the body of rod, and after in ball holding to card slot, unlock section withstands ball, and ball is arrived by holding In card slot, and under the action of not to unlock rod reversal interlocking relay, under the action of the elastic member, overhead is rolling unlock section always On pearl, strike bar is prevented to be detached from holding rod or retraction, such as needs to recycle strike bar, it is anti-to telescopic unlock by unlock driving mechanism One reversal interlocking relay of pull rod, the working principle for unlocking driving mechanism are：Under the action of reset spring, driving plate receive always to Power afterwards, when giving one forward power of driving plate, driving plate overcomes the elastic force of reset spring to travel forward, driving plate driving the One connecting rod and second connecting rod are swung, so that third connecting rod be driven to move backward in parallel, provide reversal interlocking relay.In this configuration, by In being provided with waist type groove, therefore, can then third connecting rod be driven to move along a straight line when first connecting rod and second connecting rod swing, the knot Structure does not use swing rod structure, and telescopic unlock reverse drawing bar is allowed to be connected to the middle part of third connecting rod, allows telescopic unlock reverse drawing bar Uniform force.When third connecting rod moves backward, telescopic unlock reverse drawing bar under tension drives unlock rod to move backward, solves It locks section and is detached from ball, the body of rod gives the space that ball one inwardly moves, and under the action of pulling force, ball is detached from card slot, realization pair Hit the recycling of bar.Bar is hit during retraction, telescoping tube is retracted into adjacent telescoping tube, and what is connect with unlock rod stretches The draw is recovered in unlock tube.In this configuration, by reversely installing unlock rod, and unlock is realized using pulling force, unlock rod is only It needs to be arranged in the rear end of strike bar and the recycling of strike bar can be realized in the little space for occupying strike rod rear end, when strike bar After recycling, latching device is located in the rear end of holding rod, and telescopic unlock reverse drawing bar is contracted, and the telescopic unlock of retraction is anti- Pull rod is equivalent to the length of a telescoping tube, and therefore, telescopic unlock reverse drawing bar and latching device the space occupied are small, exists in this way The middle front end of holding rod releases a large amount of space, a large amount of due to having released in the middle front end of holding rod and the middle front end of strike bar The space mountable other such as torches, torch ejection assemblies auxiliary using space, in the strike bar.Therefore, this reality The technology prejudice that existing unlock rod is arranged forward is overcome with novel unlock rod setting.Moreover, anti-using telescopic unlock Pull rod, under the action of limiting device, telescopic unlock reverse drawing bar is less likely to be damaged, and improves the service life of baton, reduces Maintenance cost.In addition, as shown in fig. 6, telescopic unlock reverse drawing bar being capable of quilt completely after the recycling of telescopic unlock reverse drawing bar It is inside hidden in unlock rod, in this way, there is no need to other occupied spaces for the telescopic unlock reverse drawing bar of recycling, is equivalent to unlock driving Mechanism is very close in latching device, after baton recycling, further releases the space in holding rod.It is inside and outside due to being provided with Keep out ring, therefore, when applying reversal interlocking relay, will not therefore stretching tube deformation and adjacent telescoping tube is detached from, this is stretched The stress that contracting formula unlocks reverse drawing bar is more reliable.Due to being provided with inside and outside stop collar, when applying reversal interlocking relay, no Telescoping tube can be made to be detached from unlock rod because of the deformation of telescoping tube and unlock rod, the stress of the structure is more reliable.

During using baton, during strike bar needs to carry out repeatedly to go out rod and receives rod, and holding device is realized With the holding of card slot, then when the non-holding of holding device is in card slot, holding device need with holding rod in wall friction, and use rolling Pearl structure then converts sliding friction for rolling friction, and therefore, frictional force is small, it is not easy to damage holding rod inner wall, reduce to police The influence of rod intensity improves the service life of baton.

It further include one or more second level strike bar, close to the one of the second level strike bar of strike bar as another structure End is plugged in strike bar, level-one card slot is equipped in the front inner wall of strike bar, successively grafting connects other second level strike bars It connects, latching device is installed in the rear end of second level strike bar, before other second levels strike bar except the second level of front end strike bar It holds inner wall to be equipped with second level card slot, is connected with telescopic unlock reverse drawing bar between adjacent latching device.The structure, as needed to make With, second level strike bar is thrown away or pulls out, when latching device follows second level strike bar to move at second level card slot, holding device card It sets in second level card slot.It such as needs to recycle baton, gives pulling force, all telescopic unlock reverse drawing bars by unlocking driving mechanism Reversal interlocking relay will be generated, holding device is promoted to be detached from card slot and second level card slot, strike bar and second level strike bar are retracted.The knot Structure is able to achieve the retraction of second level strike bar using identical unlocking mechanism, can not only increase the use length of baton, and retract It is convenient, fast.

Embodiment 2.

As shown in Figure 14 to Figure 18, Telescopic spontoon includes holding rod 1, strike bar 2, unlock driving mechanism 3, latching device 4 With telescopic unlock reverse drawing bar 5.The rear end of strike bar 2 is plugged in holding rod 1.

In the present invention, referring to Figure 15, the left end in view is rear end, and the right end of view is front end.

The built-in unlocking mechanism of flexible reverse drawing of the utility model includes unlock driving mechanism 3, latching device 4 and telescopic Unlock reverse drawing bar 5.

As shown in Figure 14 to Figure 18, it is equipped with card slot 11 in the front inner wall of holding rod 1, is located at the front of card slot 11 in holding rod Inner wall is equipped with annular groove 12, and elastic ring 110 is equipped in annular groove 12, and internal screw thread is equipped on the rear end inner wall of holding rod 1.

It is equipped with internal screw thread in the rear end of strike bar 2, is equipped with internal screw thread in the front inner wall of strike bar 2.

As shown in Figure 7 to 9, the unlock driving mechanism 3 includes pedestal 31, driving plate 32, link mechanism 33 and answers Position mechanism 34.

Pedestal 31 has pan frontward end 312 and base rear end 311, and the diameter of base rear end 311 is greater than pan frontward end 312 Diameter is equipped with external screw thread on the outer wall of pan frontward end 312, and the external screw thread and the screw-internal thread fit of 1 rear end of holding rod connect pedestal It is connected on holding rod 1；Escape 310 is equipped between pan frontward end 312 and base rear end 311.The pedestal 31 has from rear End extends forwardly to the accommodating cavity 313 at middle part, has the cavity 314 for extending rearward to accommodating cavity 313 in the front end of pedestal 31, holds The section of chamber 313 is set as circle, the section of cavity 314 is rectangle.

The driving plate 32 is located in accommodating cavity 313.

The link mechanism 33 includes first connecting rod 331, second connecting rod 332 and third connecting rod 333, first connecting rod 331 Middle part be hinged on the pedestal 31 of side in cavity 314 by the first articulated shaft 334, set on the first articulated shaft 334 The slot for having blind hole or radially extending is equipped with the screw 338 for extending into blind hole or slot on pedestal 31, in this way, first can be prevented Articulated shaft 334 moves axially, and first connecting rod 331 is avoided to be detached from pedestal 31；The middle part of second connecting rod 332 passes through the second articulated shaft 335 be hinged in cavity 314 and on the pedestal of first connecting rod opposite side 31, on the second articulated shaft 335 be equipped with it is blind Hole or the slot radially extended are equipped with the screw 339 for extending into blind hole or slot on pedestal 31, in this way, can prevent second hinged Axis 335 moves axially, and second connecting rod 332 is avoided to be detached from pedestal 31；It is equipped with waist type groove 3331 at the both ends of third connecting rod 333, the Three-link 33 is between first connecting rod 331 and second connecting rod 332, the front end of first connecting rod 331 and one end of third connecting rod 333 Waist type groove between pass through have the first sliding pin 336, the rear end of first connecting rod 331 is located at the front of driving plate 32, second connecting rod 332 Front end and third connecting rod 333 the other end waist type groove between pass through and have the second sliding pin 337, the rear end position of second connecting rod 332 In the front of driving plate 32.

The resetting-mechanism 34 includes pull rod 341 and reset spring 342, and pull rod 341 is bolt, before pull rod passes through pedestal End 312 is threadedly attached in driving plate 32 through accommodating cavity, 342 sets of reset spring be located at pan frontward end and driving plate 32 it Between pull rod 341 on.

As shown in Figure 19 to Figure 21, latching device 4 includes deck 41, unlock rod 42, elastic component 43 and energy holding to card slot Interior holding device 45.

Deck 41 includes deck rear end 411 and deck front end 412, and external screw thread is equipped on deck front end 412, outer by this Screw thread connect the rear end that deck 41 is connected to strike bar 2 with the internal screw thread of strike rod rear end.Deck 41 has axially extending Through-hole 413 is equipped with the counter sink 414 coaxial with through-hole 413 in the front end of deck, be equipped on deck 41 radially extend with it is logical The sliding vallecular cavity 400 that hole communicates, the holding device 45 are snap ring.

The snap ring include two snap rings 401 being oppositely arranged relative to deck center and setting two snap rings it Between reset spring 402.Snap ring 401 includes snap ring ontology 4011, the fastening part 4012 for being located at 4011 outside of snap ring ontology and sets Set the solution lock ear 4013 on the inside of snap ring ontology, the thickness of fastening part 4012 is less than the thickness of snap ring ontology 4011, on two snap rings Solution lock ear shifted to install in front-rear direction, the solution lock ear on two snap rings have overlapping bit, solution lock ear 4013 on be equipped with unlock Hole 40131, solution lockhole are waist-shaped hole, and the solution lockhole in two solution lock ears has the overlapping bit being mutually communicated.In the intracavitary cunning of sliding groove Dynamic is equipped with snap ring 401.

Unlock rod 42 passes through through-hole and conciliates lockhole.Unlock rod includes big end 426 and small end 427, and small end 427 connects In the rear end of big end 426.Unlock rod 42 is hollow structure, is equipped with baffle 423 in the front end of the body of rod 421.The elasticity Part is spring, and 43 sets of elastic component on the unlock rod being located on baffle 423 and counter sink, can carry out spring using counter sink Limit.

It is equipped with annular groove 416 on the rear end outer wall of deck, is equipped with elastic ring 46 in a ring groove.In general, as schemed Shown in 16, annular groove 12 is equipped in the front inner wall that holding rod 1 is located at card slot, equipped with elastic ring 110 in annular groove 12, and by In also being provided with elastic ring on deck 41, therefore, after hitting the stretching of bar 2, at the both ends of card slot by elastic ring, elastic ring energy Make the gap between holding rod and strike bar small, and two elastic rings are by the uniform force between holding rod and strike bar, therefore, strike Bar is not easy to shake relative to holding rod.

As shown in figure 21, interior stop collar 424 is equipped on the rear end inner wall of unlock rod.

As shown in figure 16, it is equipped with clamping groove 91 on strike bar inner wall, snap ring 92 is equipped on clamping groove 91, is being hit Be equipped in pipe connect with snap ring or by snap ring overhead jacking block 93, jacking block 93 avoids unlock rod for limiting the front end of unlock rod It is detached from from deck, improves the reliability used.It is of course also possible to by between deck and unlock rod be arranged limits device come The position of unlock rod is limited, outward flange such as is set in the rear end of unlock rod, outward flange is withstood by deck, which keeps out It needs to be connected through a screw thread between block and unlock rod, in this way, unlock rod could be installed, naturally it is also possible to be that limit is arranged in deck Position slot, is equipped with limited block on unlock rod, and limited block is located in limiting slot, is limited by the interaction of limited block and limiting slot Unlock rod.

As shown in Figure 14,16,17 and Figure 13, the telescopic unlock reverse drawing bar 5 includes the telescoping tube 51 of two sections or more, The mutual sliding plug of adjacent telescoping tube, the telescopic telescoping tube unlocked in reverse drawing bar are sequentially reduced from front end rear end diameter； Between adjacent expansion pipe be equipped with limiting device, the limiting device be located on wherein flexible inside pipe wall one end in keep out Ring 512 and be located on the outer wall of adjacent expansion pipe one end it is outer keep out ring 511, the outer ring of keeping out in same limiting device is located at interior support The front of baffle ring.It is extend on one end outer wall in unlock rod in the telescoping tube close to unlock rod and is equipped with outer stop collar 50, outer limit Position ring 50 is located at the front of interior stop collar 424, is inserted into unlock rod close to what the telescoping tube of unlock rod slided.Far from unlock rod The telescoping tube of one end is threadedly attached to the middle part of third connecting rod, except the telescoping tube connecting with third connecting rod can be solid or empty Outside the heart, other telescoping tubes are hollow structure.

Above structure, under the premise of not giving unlock rod reversal interlocking relay, unlock rod will not be backward under the action of the spring Movement, when hitting bar retracted state, snap ring is corresponding with the position of small end in radial directions, and unlock rod is to elastic card Ring does not have active force, such as needs using baton, throws away or pull out forward strike bar, when snap ring moves to groove position, In the outer end holding to card slot that snap ring makes snap ring under the elastic force effect of itself, such as needs to recycle strike bar, lead to It crosses unlock driving mechanism and telescopic unlock reverse drawing bar gives unlock rod one reversal interlocking relay, the big end of unlock rod squeezes elastic card Ring, snap ring bounces back under the action of big end is detached from card slot, to strike bar be withdrawn, since snap ring and card slot are Face contact, therefore, holding power are big, it is not easy to damage card slot.Unlock driving mechanism working principle be：In the effect of reset spring Under, driving plate receives power backward always, and when giving one forward power of driving plate, driving plate overcomes the elastic force of reset spring It travels forward, driving plate drives first connecting rod and second connecting rod to swing, so that third connecting rod be driven to move backward in parallel, provides anti- To pulling force.In this configuration, due to being provided with waist type groove, the can be then driven when first connecting rod and second connecting rod are swung Three-link linear motion, the structure do not use swing rod structure, and telescopic unlock reverse drawing bar is allowed to be connected to the middle part of third connecting rod, Allow it is telescopic unlock reverse drawing bar uniform force.Bar is hit during retraction, telescoping tube is retracted into adjacent telescoping tube, and The telescoping tube connecting with unlock rod is recovered in unlock tube.In this configuration, by reversely installing unlock rod, and it is real using pulling force Now unlock, unlock rod only need to be arranged in strike bar rear end and occupy strike rod rear end little space strike bar can be realized Recycling, when hit bar recycling after, latching device is located in the rear end of holding rod, and telescopic unlock reverse drawing bar is contracted, contract The telescopic unlock reverse drawing bar returned is equivalent to the length of a telescoping tube, and therefore, telescopic unlock reverse drawing bar and latching device account for Space is small, releases a large amount of space in the middle front end of holding rod in this way, due in the middle front end of holding rod and strike bar The space released in front end largely using space, in the strike bar is mountable other such as torches, torch injection group The auxiliaries such as part.Therefore, the unlock rod setting of the utility model overcomes the technology prejudice that existing unlock rod is arranged forward.And And using telescopic unlock reverse drawing bar, under the action of limiting device, telescopic unlock reverse drawing bar is less likely to be damaged, and improves The service life of baton, reduces maintenance cost.In addition, after the recycling of telescopic unlock reverse drawing bar, telescopic unlock reverse drawing bar It can be hidden in unlock rod by interior completely, in this way, there is no need to other occupied spaces for the telescopic unlock reverse drawing bar of recycling, quite It is very close in latching device in unlock driving mechanism, after baton recycling, further release the space in holding rod.Due to Keep out ring provided with inside and outside, therefore, when applying reversal interlocking relay, will not therefore stretching tube deformation and make adjacent telescoping tube It is detached from, the stress of the telescopic unlock reverse drawing bar is more reliable.Due to being provided with inside and outside stop collar, it is reversed applying When pulling force, telescoping tube will not be made to be detached from unlock rod because of the deformation of telescoping tube and unlock rod, the stress of the structure more may be used It leans on.

It further include one or more second level strike bar, close to the one of the second level strike bar of strike bar as another structure End is plugged in strike bar, level-one card slot is equipped in the front inner wall of strike bar, successively grafting connects other second level strike bars It connects, latching device is installed in the rear end of second level strike bar, before other second levels strike bar except the second level of front end strike bar It holds inner wall to be equipped with second level card slot, is connected with telescopic unlock reverse drawing bar between adjacent latching device.The structure, as needed to make With, second level strike bar is thrown away or pulls out, when latching device follows second level strike bar to move at second level card slot, holding device card It sets in second level card slot.It such as needs to recycle baton, gives pulling force, all telescopic unlock reverse drawing bars by unlocking driving mechanism Reversal interlocking relay will be generated, holding device is promoted to be detached from card slot and second level card slot, strike bar and second level strike bar are retracted.The knot Structure is able to achieve the retraction of second level strike bar using identical unlocking mechanism, can not only increase the use length of baton, and retract It is convenient, fast.

Claims (8)

1. a kind of built-in unlocking mechanism of flexible reverse drawing, it is characterised in that：Including unlock driving mechanism, latching device and telescopic Unlock reverse drawing bar；Telescopic unlock reverse drawing bar is equipped between unlock driving mechanism and latching device；

The unlock driving mechanism includes pedestal, driving plate, link mechanism and resetting-mechanism, and driving plate is located in pedestal, even Linkage and driving plate act on, and resetting-mechanism is located between pedestal and driving plate；

The latching device includes deck, unlock rod, elastic component and holding device, and deck has axially extending through-hole, card It sets device to be located on deck, unlock rod passes through through-hole or extend into through-hole from the front end of deck, and unlock rod and holding device are made With elastic component is located between deck and unlock rod；

The telescopic unlock reverse drawing bar includes the telescoping tube of two sections or more, and the mutual sliding plug of adjacent telescoping tube is adjacent It is equipped with limiting device between telescoping tube, one end of unlock rod is connected to close to the telescoping tube of unlock rod, far from unlock rod one end Telescoping tube is connected in unlock driving mechanism.

2. the built-in unlocking mechanism of flexible reverse drawing according to claim 1, it is characterised in that：It is equipped on deck and through-hole The hole of bead of the more than one circle distribution radially extended communicated, the holding device are the ball being located in the hole of bead；Institute The unlock rod stated includes the body of rod and the unlock section for being connected to body of rod rear end, and the outer diameter of the body of rod is less than the outer diameter of unlock section, close to solution The telescoping tube of locking bar is connected in unlock section.

3. the built-in unlocking mechanism of flexible reverse drawing according to claim 1, it is characterised in that：Radial prolong is equipped on deck The sliding vallecular cavity communicated with through-hole stretched, the holding device are snap ring, and snap ring passes through sliding vallecular cavity, unlock rod Including big end and small end, small end is connected to the rear end of big end, and the telescoping tube close to unlock rod is connected in small end.

4. the built-in unlocking mechanism of flexible reverse drawing according to claim 1, it is characterised in that：It is equipped in the front end of unlock rod Baffle, elastic component cover on the unlock rod being located on baffle and deck；Annular groove is equipped on the rear end outer wall of deck, Elastic ring is equipped in annular groove.

5. the built-in unlocking mechanism of flexible reverse drawing according to claim 2, it is characterised in that：Have between the body of rod and unlock section There is chamfering.

6. the built-in unlocking mechanism of flexible reverse drawing according to claim 3, it is characterised in that：Big end and small end it Between be equipped with interconnecting piece, interconnecting piece be in truncated cone-shaped.

7. the built-in unlocking mechanism of flexible reverse drawing according to claim 1, it is characterised in that：In telescopic unlock reverse drawing bar Telescoping tube be sequentially reduced from front end rear end diameter；The limiting device is to be located on wherein flexible inside pipe wall one end Inside keep out ring and be located on the outer wall of adjacent expansion pipe one end it is outer keep out ring, the outer ring of keeping out in same limiting device is located at interior support The front of baffle ring；It is equipped with interior stop collar on the rear end inner wall of unlock rod, extend into unlock rod in the telescoping tube close to unlock rod Interior one end outer wall is equipped with outer stop collar, and outer stop collar is located at the front of interior stop collar, and the telescoping tube close to unlock rod slides Be inserted into unlock rod.

8. the built-in unlocking mechanism of flexible reverse drawing according to claim 1, it is characterised in that：The pedestal has from rear End extends forwardly to the accommodating cavity at middle part, has the cavity for extending rearward to accommodating cavity in the front end of pedestal；The driving plate It is located in accommodating cavity；The link mechanism includes first connecting rod, second connecting rod and third connecting rod, and the middle part of first connecting rod is hinged It is hinged on the pedestal of side within the cavity, in the middle part of second connecting rod within the cavity and with first connecting rod opposite side On pedestal, it is equipped with waist type groove at the both ends of third connecting rod, third connecting rod is between first connecting rod and second connecting rod, first connecting rod Front end and third connecting rod one end waist type groove between pass through there is the first sliding pin, the rear end of first connecting rod to be located at driving plate before Square, passing through between the waist type groove of the other end of the front end and third connecting rod of second connecting rod has the second sliding pin, the rear end of second connecting rod Positioned at the front of driving plate；The resetting-mechanism includes pull rod and reset spring, and pull rod passes through pedestal and is connected in driving plate, Reseting spring sleeve is on the pull rod between pedestal and driving plate；The telescopic unlock reverse drawing bar is connected to third connecting rod Middle part.