CN201139177Y - Safety anti-clamping structure for pull rod - Google Patents

Abstract

The utility model relates to a pull rod safety anti-pinch structure, which comprises an outer rod, an inner rod and a clamping body, wherein clamping holes, positioning holes and limiting holes are appropriately arranged at two sides of a rod frame of the outer rod, and corresponding clamping holes and through holes are respectively arranged at two sides of the end of the rod frame of the inner rod, wherein the clamping holes are used to clamp the clamping body; when a user presses a pressing piece at the top of the inner rod to make the right clamping rod of the clamping body disengage from the clamping hole of the outer rod, the inner rod can be quickly pressed down, and before the inner rod is completely retracted, the left clamping rod of the clamping body will be completely pressed down by the pressing piece and will be clamped in the limiting hole of the outer rod through the through hole of the rod frame of the inner rod, so that a reserved space for accommodating fingers appears at the top of the outer rod and the top of the inner rod, thereby achieving the purpose of safety and preventing the fingers of the user from being clamped.

Description

Pull rod safety anti-pinch structure

technical field

This case relates to a pull rod, especially a pull rod safety anti-pinch structure that can be locked before the inner rod is fully folded, so that a space for fingers is accommodated between the inner rod and the outer rod to prevent hands from being pinched.

Background technique

Press, the suitcase trolley 1 seen in the general market, please refer to shown in Fig. 1, and it comprises outer rod 10, inner rod 11 and clamping body 12, and wherein outer rod 10 is installed on the inside of the middle section of rod frame 101 on both sides. There are several clamping holes 102, and a positioning hole 103 is provided at its end; the inner rod 11 is to make the rod holders 110 on both sides of it can be accommodated in the rod holders 101 on both sides of the outer rod 10, and on the rod The inside of the frame 110 is provided with a linkage rod 112 pressed by its top pressing part 111; Phase clamping, it is made up of left side cover 120, right side cover 121, clip 122, spring 123 and push rod 125 combined with a spring 124, please refer to shown in Figure 2; Make clamping body 12, inner After the rod 11 and the outer rod 10 are assembled, the clamping rod 128 of the clamping body 12 clip 122 clamped with the inner rod 11 will snap into one of the clamping holes 102 provided by the rod frame 101 of the outer rod 10, so that the inner rod 11 Positioned at this position; please refer to Fig. 3, when pressing the pressing part 111 on the top of the inner rod 11 to drive the linkage rod 112 to move down, the linkage rod 112 will make the pressing edge 114 at the end of the linkage rod press the locking body 12 top push rod 125, when the push rod 125 is pushed down by it, the slope 126 at the bottom will contact the slope 127 on the top of the clip 122, and thereby push the clip 122 to the outside rod 10. The reverse displacement of the hole 102 makes the clamping rod 128 break away from the clamping hole 102, so that the inner rod 11 can move up and down; Hold the pressing piece 111 and quickly press down the inner rod 11 to the bottom. Therefore, it is very easy to cause the fingers holding the top of the inner rod 11 to be caught between the top of the outer rod 10 and the top of the inner rod 11 and get injured, as shown in FIG. 4 .

In view of this, in order to improve the above-mentioned common shortcomings, the inventor has developed a new safety anti-pinch structure of the pull rod based on years of experience in the industry and various tests.

Contents of the invention

The purpose of this utility model is to provide a safety anti-pinch structure of the pull rod, which is to allow the user to press the pressing part and quickly press down the inner rod of the pull rod, before it reaches the end point of the bottom end and is completely folded, it will be locked , so that there is a reserved space for fingers on the top of the outer rod and the top of the inner rod. After releasing the pressing part, the inner rod can continue to move down to the end point, thereby preventing the user's fingers from being pinched .

In order to achieve the above purpose, the safety anti-pinch structure of the pull rod of the utility model, wherein the rod frame of the outer rod is provided with a clamping hole, a limit hole and a positioning hole; And by its linkage, the lower end of the inner rod is provided with a clamping hole and a through hole; the clamping body includes a left cover, a right cover, a clamp, a spring and a push rod; its main features are:

The outer rod is provided with a limit hole on the outer surface of the rod frame, between the clamping hole and the end positioning hole;

Inner rod, the outer side of the rod frame is provided with a through hole corresponding to the carding hole in the inner side;

The clamping body, wherein the left cover is provided with a through hole; the right cover is also provided with a through hole corresponding to the through hole set on the left cover; , and the outside of the left card rod has a groove for the spring to be sleeved and accommodated, and the top of the card body extends a beveled flange; the push rod is provided with a spring outside its vertical rod, and one side is provided with The inclined surface of the flange provided by the clip matches the inclined surface; the left clip lever of the clip is covered with a spring, the right clip lever is inserted into the through hole of the right cover, and the push rod is placed in the space of the right cover, and the Its spring falls completely outside the top surface of the right side cover, and then the left side cover and the right side cover are combined smoothly;

The clamping body is placed in the rod frame of the inner rod, and the right clamping rod is fixed with the clamping hole of the inner rod, and then the inner rod is inserted into the rod frame of the outer rod.

Therefore, with the design of the left and right clamping rods of the clamping body clamp of the present invention, when the push rod is pressed down to push the clamping member to the left, the right clamping rod will break away from the clamping hole of the outer rod, and the inner rod will It can move up and down. When the inner rod moves down to the limit hole of the left clamping rod of the clip and the outer rod, the inner rod can no longer move downwards, and forms a gap with the top of the outer rod for fingers to accommodate. The space has the effect of preventing the user from being pinched.

Description of drawings

Figure 1 is a commonly used three-dimensional exploded view.

Fig. 2 is a three-dimensional exploded view of a commonly used clamping body.

Fig. 3 is a schematic diagram of a commonly used partial section action.

Figure 4 is a commonly used reference diagram of the use state.

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

Fig. 6 is a three-dimensional assembled view of the clamping body of the present invention.

Fig. 7 is a three-dimensional exploded view of the locking body of the present invention.

Fig. 8 is a partial sectional view of the utility model.

Fig. 9 is a partial cross-sectional action schematic diagram of the present invention.

Fig. 10 is a reference diagram of the use state of the utility model.

Detailed ways

Please refer to Figure 5 for the safety anti-pinch structure of the pull rod of the present utility model, which includes an outer rod 2, an inner rod 3 and a clamping body 4, wherein:

The outer rod 2 is provided with a plurality of clamping holes 201 at the inner side of the middle section of the rod frame 20 on both sides, and a positioning hole 202 is provided at its end, and a limit hole is respectively provided under the outer surfaces of the rod frames 20 on both sides. 203, the position of the limiting hole 203 is located between the clamping hole 201 and the positioning hole 202;

The inner rod 3 is such that the rod holders 30 on both sides can be accommodated in the rod holders 20 on both sides of the outer rod 2 , and inside the rod holders 30 on both sides, there are respectively provided with the rod holders 30 that are pressed and moved by the top pressing parts 31 . A linkage rod 32, the end of the linkage rod 32 is provided with a pressing edge 320, and the two sides of the end of the rod frame 30 are respectively provided with corresponding clamping holes 301 and through holes 302;

The clamping body 4 can be placed in the space of the rod frame 30 on both sides of the inner rod 3, and is fixed with the clamping hole 301 of the rod frame 30. It includes a left cover 40, a right cover 41, and a clamp 42. , a spring 43 and a push rod 45 combined with a spring 44, please refer to Figures 6 to 8; wherein the left side cover 40 is provided with a through hole 401 on its closed side, and a body 420 for the clip 42 is provided inside. There is a space 402 for setting, and a card edge 403 extends from the lower end of the closed side, and a round groove 404 aligned with each other is provided on both sides of the top of the open side; A through hole 410 is also provided at the corresponding place of the established through hole 401 of the left side cover 40, and a space 411 for the body 420 of the clamp 42 is also provided inside it, and a left side and a left side are respectively provided on both sides of the top of the opening side. The round bar 412 corresponding to the round groove 404 provided at the top of the opening side of the side cover 40 has a seat piece 413 provided with a card hole 414 for inserting the card edge 403 at the bottom of the left side cover 40; the card part 42 can be placed on the left side 1. In the spaces 402, 411 provided by the right side covers 40, 41, a left and a right clamping rod 421, 422 are respectively extended on both sides of the main body 420, and a spring 43 is set outside the left clamping rod 421 to accommodate The groove 423 of the main body 420 extends a triangular flange 425 with a bevel 424; the push rod 45 is L-shaped, and a spring 44 is set outside its vertical rod 450, and is limited by a latch 46. One side of the bottom is provided with a slope 451 that can match the slope 424 of the triangular flange 425 of the clip 42; if the body 420 of the clip 42 is placed under the space 411 of the right side cover 41, the right clip bar 422 will pass through. Set outside the through hole 410 provided by it, the spring 43 is sleeved outside the left clamping rod 421 of the clip 42 and placed in the groove 423, and then the push rod 45 that is sleeved with the spring 44 is placed on the right side. Above the space 411 of the side cover 41, and make the spring 44 set therein fall completely outside the top surface of the right side cover 41, insert the left side cover 40 into the seat piece 413 of the right side cover 41 with its bottom card edge 403 In the provided locking hole 414, the right side cover 41 is inserted into the round groove 404 provided on the top of the left side cover 40 with the round rod 412 provided on the top, so that the left side cover 40 and the right side cover 41 are smoothly combined, and the card is locked. One end of the spring 43 sleeved outside the left clamping rod 421 of the member 42 will be against the inner surface of the through hole 401 provided by the left side cover 40;

Make the clamping body 4 be placed in the rod frame 30 of the inner rod 3, and make its right clamping rod 422 be clamped in the clamping hole 301 of the rod frame 30 so that the clamping body 4 is combined with the inner rod 3, then the clamping body 4 is combined with the inner rod 3. The top surface of the push rod 45 of the body 4 will be in contact with the pressing edge 320 of the linkage rod 32, and then the rod frame 30 of the inner rod 3 will be inserted in the rod frame 20 of the outer rod 2, then the clamping body 4 will be pressed with its The right locking rod 422 protruding from the right side cover 41 is snapped into one of the locking holes 201 provided on the inside of the rod frame 20 of the outer rod 2, so that the inner rod 3 is positioned at this position, as shown in Figure 8 .

When in use, please refer to Fig. 5, Fig. 9, and Fig. 10, press the pressing piece 31 on the top of the inner rod 3 to move the linkage rod 32 downward, and the pressing edge 320 at the end will push the push rod of the clamping body 4 45 is pressed down, and when the push rod 45 is pressed down by it and moves down, the inclined surface 451 set at the bottom will gradually contact the inclined surface 424 set at the top of the clip 42, and thereby move the clip 42 toward the left side of the cover 40. The direction of the through hole 401 is passed, and then the clamping rod 422 is separated from the clamping hole 201 of the outer rod 2 rod frame 20, and the adjustment of the upper and lower positions of the inner rod 3 is convenient; When the clip 42 of the system body 4 falls to the position opposite to the limit hole 203 provided by the outer rod 2, since the user presses the pressing part 31 to the bottom, the clip 42 is pushed by the push rod 45 and is completely displaced to the left side cover. In the space 402 of 40, the right clamping rod 422 of the clamping body 4 clamping member 42 is further separated from the clamping hole 301 of the inner rod 3, so that the left clamping rod 421 passes through the through hole 401 and the inner rod 40 provided by the left side cover 40. The through hole 302 of the rod 3 is inserted into the limit hole 203 of the outer rod 2, so that the inner rod 3 cannot move down any further, and a space is created between the top of the inner rod 3 and the top of the outer rod 2 for the user's fingers 5. As shown in Figure 10, it can prevent the user from pinching his fingers due to too fast application of force; when the user relaxes the pressing member 31, the push rod 45 will bounce back to its original position under the restoring force of the spring 44 sheathed therein , the clip 42 is also displaced toward the right side cover 41 due to the restoring force of the spring 43, and then the left clip 421 is disengaged from the limiting hole 203 of the outer rod 2, so that the inner rod 3 can move downward again. Until the clamping body 4 is displaced, the right clamping rod 422 is clamped to the positioning hole 202 provided at the end of the outer rod 2 to complete the retraction of the inner rod 3 .

Claims (2)

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.

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