CN201139177Y

CN201139177Y - Safety clamping-proof structure of pull rod

Info

Publication number: CN201139177Y
Application number: CNU2007201988377U
Authority: CN
Inventors: 刘庆铭
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-04
Filing date: 2007-12-04
Publication date: 2008-10-29
Anticipated expiration: 2017-12-04

Abstract

The utility model relates to a safe clamping-proof structure for pull rods, which comprises an outer rod, an inner rod and a blocking body, wherein, proper positions on both sides of the rod frame of the outer rod are provided with blocking holes, positioning holes and limited holes, and both sides of the tail end of the rod frame of the inner rod are respectively provided with corresponding blocking holes and through holes; wherein, the blocking holes can be clamped by the blocking body. The right blocking rod of the blocking body can be disengaged from the blocking hole of the outer rod when a pressing piece on the top of the inner rod is pressed by a user, and the inner rod can be pressed downwards rapidly; before closing entirely, the left blocking rod of the blocking body can be blocked in the limited hole of the outer rod via the through hole of the rod frame of the inner rod as the pressing piece is pressed downward entirely, the reserved spaces by which fingers can be positioned are presented on the top of the outer and the inner rods, thereby, the purpose of safety, and the protection of the fingers of the user can be realized.

Description

Pull bar safety anti-clamping structure

Technical field

This case is about a kind of pull bar, refers to especially a kind ofly can be subjected to card before bar folds fully in it and end, and makes itself and outer bar generation one supply to point ccontaining space and the pull bar safety anti-clamping structure that can prevent tong.

Background technology

Press, the being seen trunk draw bar 1 in general market sees also shown in Figure 1ly, and it comprises outer bar 10, interior bar 11 and fastening convex side 12, and inboard suitable locating is provided with some blockings hole 102 to its China and foreign countries' bar 10 in its both sides bridge 101 stage casings, and is provided with a locating hole 103 in addition in its end; Interior bar 11 is to make the bridge 110 of its both sides can be placed in the bridge 101 of outer bar 10 both sides, and is provided with the trace 112 that is subjected to its top pressing piece 111 to push interlock in its bridge 110 inside; Fastening convex side 12, be in the space of bar 11 both sides bridges 110 in can placing, and fix mutually with the open-work 113 of bridge 110, it is to be combined by left cap 120, right cap 121, fastener 122, spring 123 and the push rod 125 that is combined with a spring 124, sees also shown in Figure 2; After making fastening convex side 12,

interior bar

11 and 10 assemblings of outer bar, the kelly 128 of fastening convex side 12 fasteners 122 that fix with interior bar 11 can snap in the set wherein blocking hole 102 of outer bar 10 bridges 101, makes interior bar 11 be positioned this position; See also shown in Figure 3, bar 11 top pressing pieces 111 in pushing, when its drive trace 112 is moved down, this trace 112 can make the edge 114 of pushing of its end push fastening convex side 12 top push rods 125, this push rod 125 is subjected to its promotion and when moving down, set inclined-plane 126, its bottom can contact with set inclined-plane 127, fastener 122 tops, and by this with the fastener 122 reverse displacement in the blocking hole 102 of bar 10 outward, and then make its kelly 128 break away from blocking hole 102, and bar 11 is done upper and lower displacement in convenient; So, this kind structure since the user order should in bar 11 when moving down, be to pin this pressing piece 111 fast interior bar 11 to be pressed to the end, therefore, very easily cause hold in the finger at bar 11 tops be sandwiched between outer bar 10 tops and interior bar 11 tops and injured, as shown in Figure 4.

Given this, the inventor is for improving above-mentioned shortcoming commonly used, be based on for many years from the experience of cause and through test in many ways, a kind of new pull bar safety anti-clamping structure and develop.

Summary of the invention

The purpose of this utility model is to provide a kind of pull bar safety anti-clamping structure, be to make the user push the interior bar that its pressing piece also presses down this pull bar fast, arrive at the bottom terminal point at it, before folding fully, can be subjected to card and end, and make the top of outer masthead portion and interior bar occur waiting to decontrol this pressing piece for the ccontaining headspace of finger, bar continues to be displaced downwardly to terminal terminal point in can making, and prevents that by this user's finger from being crushed.

For reaching above-mentioned purpose, pull bar safety anti-clamping structure of the present utility model, the bridge of its China and foreign countries' bar is provided with blocking hole, spacing hole and locating hole; Interior bar inside is provided with trace, and this trace combines and be subjected to its interlock with its pressing piece, and interior bar lower end also is provided with blocking hole and open-work; Fastening convex side comprises left cap, right cap, fastener, spring and push rod; Be primarily characterized in that:

Outer bar in its bridge lateral surface, is provided with a spacing hole between blocking hole and the terminal locating hole;

Interior bar, its bridge outside is provided with the corresponding open-work in blocking inboard with it hole;

Fastening convex side, wherein left cap is provided with an open-work; Right cap also be provided with an open-work with the corresponding section set open-work of left cap; Fastener respectively is provided with left and right kelly in its body both sides, and left jamming rod has the ccontaining groove in the sheathed back of an ammunition feed spring outward, and the fastener bodies top is then extended the flange on a tool inclined-plane; Push rod is a sheathed spring outside its vertical rod, and the one side is provided with an inclined-plane that matches with the inclined-plane of the set flange of fastener; Make the outer sheathed spring of left jamming rod of fastener, right jamming rod is inserted in the open-work of right cap, and push rod places in the space of right cap, and makes its spring fall within fully outside the right cap end face, makes that left cap and right cap are smooth-going to be combined again;

Make fastening convex side place in the bridge of interior bar, and make its right jamming rod fix mutually with the blocking hole of interior bar, bar is inserted in the bridge of outer bar in the order again.

Be with, design by the left and right kelly of the utility model fastening convex side fastener, when push rod pressed down and with fastener to left translation, then its right jamming rod breaks away from the blocking hole of outer bar, interior bar can carry out upper and lower displacement, when interior bar be displaced downwardly to the left jamming rod that makes fastener with outside during the spacing hole blocking of bar, interior bar can't be again to bottom offset, and produce one for the finger accommodation space with outer masthead portion, be to have the effect that prevents to crush the user.

Description of drawings

Fig. 1 is the three-dimensional exploded view of using always.

Fig. 2 is the three-dimensional exploded view of the fastening convex side used always.

Fig. 3 is the part section action schematic diagram of using always.

Fig. 4 is the user mode reference diagram of using always.

Fig. 5 is a three-dimensional exploded view of the present utility model.

Fig. 6 is the three-dimensional combination figure of fastening convex side of the present utility model.

Fig. 7 is the three-dimensional exploded view of fastening convex side of the present utility model.

Fig. 8 is a part sectioned view of the present utility model.

Fig. 9 is a part section action schematic diagram of the present utility model.

Figure 10 is a user mode reference diagram of the present utility model.

The specific embodiment

Pull bar safety anti-clamping structure of the present utility model sees also shown in Figure 5ly, and it comprises outer bar 2, interior bar 3 and fastening convex side 4, wherein:

Outer bar 2, inboard suitable place is provided with some blockings hole 201 in its both sides bridge 20 stage casings, and be provided with a locating hole 202 in addition in its end, and respectively being provided with a spacing hole 203 in its both sides bridge 20 lateral surfaces below, the position of this spacing hole 203 is between blocking hole 201 and locating hole 202;

Interior bar 3, be to make the bridge 30 of its both sides can be placed in the bridge 20 of outer bar 2 both sides, and respectively be provided with the trace 32 that is subjected to its top pressing piece 31 to push interlock in its both sides bridge 30 inside, these trace 32 ends are provided with pushes edge 320, and bridge 30 terminal both sides respectively are provided with corresponding blocking hole 301 and open-work 302;

Fastening convex side 4 is in the space of bar 3 both sides bridges 30 in can placing, and fixes mutually with the blocking hole 301 of bridge 30, and the push rod 45 that it comprises left cap 40, right cap 41, fastener 42, spring 43 and is combined with a spring 44 sees also Fig. 6 to shown in Figure 8; Wherein left cap 40 is provided with an open-work 401 in its closed side, and inside is provided with one can be for the ccontaining space 402 of the body 420 of fastener 42, and an edge clipping 403 is extended in its lower end, closed side, and both sides, open side top respectively are provided with the circular groove 404 that aligns; Right cap 41, be to stand on the sheet 413, the corresponding section with left cap 40 set open-works 401 in its closed side also is provided with an open-work 410, its inside also is provided with can be for the ccontaining space 411 of the body 420 of fastener 42, its both sides, open side top respectively are provided with and the set circular groove 404 corresponding round bars 412 in left cap 40 open side tops, and its sheet 413 is provided with a hole clipping 414 that supplies left cap 40 bottom edge clippings 403 to plug; Fastener 42, it is can place in the set space 402,411 of left and

right side cover

40,41, a left and right kelly 421,422 is respectively extended in its body 420 both sides, then be provided with the ccontaining grooves 423 in an ammunition feed spring 43 sheathed backs outside this left jamming rod 421, be extended with the triangle flange 425 on a tool inclined-plane 424 in its body 420 tops; Push rod 45 is to be the L type, a sheathed spring 44 outside its vertical rod 450, and with latch 46 with its restriction, its bottom one side is provided with an inclined-plane 451 that can match with the inclined-plane 424 of fastener 42 triangle flanges 425; Make the body 420 of fastener 42 place in 411 belows, space of right cap 41, then its right jamming rod 422 can wear outside its set open-work 410, it is outer and place in the groove 423 that spring 43 is sheathed on the left jamming rod 421 of fastener 42, the push rod 45 that will be arranged with spring 44 again makes its underpart place 411 tops, right cap 41 spaces, and make its sheathed spring 44 fall within fully outside the end face of right cap 41, left cap 40 is inserted in the set hole clipping 414 of the seat sheet 413 of right cap 41 with its bottom edge clipping 403, make right cap 41 insert in the set circular groove 404 in left cap 40 tops again with the set round bar 412 in its top, make left cap 40 and right cap 41 smooth-going combinations, then the left jamming rod 421 of fastener 42 outer an end of sheathed spring 43 can be butted on the inner face of left cap 40 set open-works 401;

Make fastening convex side 4 place in the bridge 30 of interior bar 3, and make its right jamming rod 422 be equipped in the blocking hole 301 of this bridge 30 and fastening convex side 4 is combined with interior bar 3, then push rod 45 end faces of fastening convex side 4 can contact with the edge 320 of pushing of trace 32, bridge 30 with interior bar 3 is inserted in the bridge 20 of outer bar 2 again, then fastening convex side 4 can snap in the bridge 20 inboard set wherein blocking holes 201 of outer bar 2 with its right jamming rods 422 that stretch out in outside its right cap 41, and bar 3 is positioned this position in making, as shown in Figure 8.

During use, see also Fig. 5, Fig. 9, shown in Figure 10, the pressing piece 31 at bar 3 tops in pushing, trace 32 is moved down, then the edge 320 of pushing of its end can press down the push rod 45 of fastening convex side 4, this push rod 45 is pressed down by it and when moving down, set inclined-plane 451, its bottom can contact with set inclined-plane 424, fastener 42 tops gradually, and by this fastener 42 is passed toward the direction of the open-work 401 of left cap 40, and then make its kelly 422 break away from the blocking hole 201 of outer bar 2 bridges 20, and convenient interior bar 3 is done the adjustment of upper-lower position; When interior bar 3 is done down maneuver, and when dropping to the fastener 42 that makes fastening convex side 4 and falling within set spacing hole 203 relative positions of outer bar 2, because the user is pressed into the end with pressing piece 31, make the passing of fastener 42 drawn stems 45 and be moved to fully in the space 402 of left cap 40, the blocking hole 301 of bar 3 in then the right jamming rod 422 of fastening convex side 4 fasteners 42 further breaks away from, and make left jamming rod 421 by the set open-works 401 of left cap 40 and in bar 3 open-work 302 and snap in the spacing hole 203 of outer bar 2, and bar 3 can't move down again in making, then interior bar 3 tops produce one with outer bar 2 tops and are available for users to point ccontaining space 5, as shown in figure 10, can avoid user's application of force too fast and jam a finger; When the user loosens this pressing piece 31, make push rod 45 be subjected to its restoring force bounce-back homing of sheathed spring 44, then fastener 42 is also because of the side cover 41 direction displacements of turning right of the restoring force of spring 43, and then make left jamming rod 421 break away from the spacing hole 203 of outer bar 2, bar 3 can be done action to bottom offset again in making, and makes its right jamming rod 422 be equipped in the outer bar 2 set locating holes 202 of end again and the folding of bar 3 in finishing up to being moved to fastening convex side 4.

Claims

1, a kind of pull bar safety anti-clamping structure, the bridge of its China and foreign countries' bar is provided with blocking hole and locating hole; The bridge inside of interior bar is provided with trace, and this trace combines and be subjected to its interlock with the pressing piece of interior masthead portion, and its end has the edge of pushing, and there is the blocking hole the terminal inboard of interior bar bridge; Fastening convex side comprises left cap, right cap, fastener, spring and push rod; It is characterized in that:

Outer bar oppositely is provided with a spacing hole in its bridge between blocking hole and terminal locating hole;

Interior bar, in its bridge outside, the corresponding position in inboard set blocking hole is provided with an open-work with it;

Fastening convex side, wherein left cap is provided with an open-work, right cap also is provided with an open-work with corresponding section this open-work of left cap; Fastener is provided with left and right kelly in its both sides, and left jamming rod has the ccontaining groove in the sheathed back of an ammunition feed spring outward, and the flange on a tool inclined-plane is then extended at the top; Push rod is a sheathed spring outside its vertical rod, and the one side is provided with an inclined-plane that matches with the set inclined-plane of fastener; Make the outer sheathed spring of left jamming rod of fastener, right jamming rod is inserted in the open-work of right cap, and push rod places in the space of right cap, makes left cap combine with right cap again.

2, pull bar safety anti-clamping structure as claimed in claim 1, it is characterized in that: mat pressing piece wherein, trace presses down fastening convex side, make the right jamming rod of fastening convex side fastener break away from the blocking hole of outer bar, then interior bar can be displaced downwardly to the relative position place that makes fastening convex side fall within outer bar spacing hole, what make pressing piece again pushes the spacing hole that the left jamming rod that makes fastener enters outer bar fully, then in bar ended by this card, and in making bar and outer bar produce one for pointing ccontaining space the unlikely user of crushing.