CN215913582U

CN215913582U - Anti-blocking pull rod

Info

Publication number: CN215913582U
Application number: CN202122099034.9U
Authority: CN
Inventors: 王剑河
Original assignee: Quanzhou Wenhao Plastic Products Co ltd
Current assignee: Quanzhou Wenhao Plastic Products Co ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-03-01
Anticipated expiration: 2031-09-01

Abstract

The utility model discloses an anti-jamming pull rod, which comprises a handle, wherein the top of the handle is fixedly connected with a parallel mounting frame, the bottom of the mounting frame is fixedly connected with one end of a pull rod, the other end of the pull rod is slidably mounted in a fixed rod, a tooth block on the wall of an inserted shaft is meshed with a pinion by pressing a pressing block, so that a large gear drives a sliding plate to move upwards in a sliding groove, a main pull rope is pulled, a linkage branch pull rope controls an arc-shaped fixture block to slide on a limiting rod through the main pull rope, one end of the arc-shaped fixture block is separated from a through hole and a limiting hole, a limiting structure is unlocked, the pull rod can be pulled in the fixed rod, if the limiting is required to be carried out, the pressing block is loosened to move upwards the inserted shaft under the action of a spring, the main pull rope is not dragged by force, the arc-shaped fixture block slides downwards under the action of an arc-shaped groove under the action of the arc-shaped groove, and automatically moves until the arc-shaped fixture block passes through the through hole and the limiting hole, has the function of limiting.

Description

Anti-blocking pull rod

Technical Field

The utility model relates to the technical field of pull rod equipment, in particular to an anti-blocking pull rod.

Background

In order to facilitate long-time traveling, people usually select bags to carry personal articles, the bags generally comprise a box body, pulleys arranged on the box body and a pull rod, the pull rod plays a role of dragging the bags, the existing pull rod is usually formed by splicing an upper section and a lower section to form a telescopic structure so as to realize the storage and extension of the pull rod, but the structure brings inconvenience to users under the condition of telescopic blockage in the using process.

To this end, the chinese utility model patent that the grant bulletin number is CN212212965U discloses a prevent case and bag pull rod that card went on, including the tow-pull handle that the body of rod, the last body of rod and the last body of rod were equipped with down, the mounting groove with last body of rod adaptation is seted up to body of rod axial top one side down, it sets up in the mounting groove to go up the body of rod grafting, it is the square with mounting groove radial cross-section to go up the body of rod, go up the body of rod and the mounting groove and open first ball spout and the second ball spout that are equipped with the equidimension mutually, it is equipped with the ball to fill between first ball spout and the second ball spout, second ball tank bottom is equipped with the magnet layer, the ball is the indisputable ball.

The anti-jamming pull rod structure in the above case is not obvious enough for the anti-jamming processing result, and the limit structure in the above case cannot perform a good limit effect, so we propose an anti-jamming pull rod to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a jamming prevention drawbar, which solves the above problems.

In order to achieve the purpose, the utility model provides the following technical scheme: the anti-jamming pull rod comprises a handle, wherein the top of the handle is fixedly connected with a parallel mounting frame, the bottom of the mounting frame is fixedly connected with one end of a pull rod, and the other end of the pull rod is slidably mounted in a fixed rod;

a cavity is formed in the mounting frame, parallel through holes are formed in the bottom of the mounting frame, a cavity is formed in the top of the drawing rod in a penetrating mode, a sliding cavity is formed in the fixed rod, the bottom of the drawing rod is arranged in the sliding cavity, the cavity and the sliding cavity are communicated with each other, a limiting plate is fixedly arranged at the joint of the drawing rod and the fixed rod, a limiting ring is fixedly arranged in the middle of the limiting plate, and the limiting ring is arranged at the end wall of the fixed rod;

the bottom of the parallel fixed rods is fixedly connected with a bottom plate.

Preferably, the pressing block is slidably mounted inside the mounting frame, the top of the pressing block movably penetrates through the top of the mounting frame, the middle of the pressing block inside the mounting frame is fixedly connected with the insertion shaft, the insertion shaft movably penetrates through a through hole formed in the top wall of the handle and penetrates into the cavity, and the top wall of the handle inside the mounting frame is movably connected with the bottom wall of the pressing block through a spring.

Preferably, parallel fixed shafts are fixedly installed on the side wall of the inner portion of the cavity, the fixed shafts are sleeved with large gears, the fixed shafts above the large gears are sleeved with small gears, sliding grooves are formed in the side wall of the cavity beside the fixed shafts, sliding blocks are connected inside the sliding grooves in a sliding mode, and one side wall of each sliding block is fixedly connected with a sliding plate.

Preferably, a plurality of tooth blocks with small diameters are fixedly connected to one side wall of the inserting shaft in the cavity and meshed with tooth grooves of the outer ring of the pinion, a plurality of tooth blocks are fixedly connected to the bottom side wall of the sliding plate and meshed with tooth grooves of the outer ring of the large gear, and a flexible main pull rope is fixedly connected to the bottom of the sliding plate and penetrates through the cavity.

Preferably, one end of the main pull rope in the cavity is fixedly connected with the two branch pull ropes, the inner side wall of one end of the cavity is fixedly connected with a parallel limiting rod, the limiting rod is movably connected with an arc-shaped fixture block, the middle of the arc-shaped fixture block is provided with an arc-shaped groove in a penetrating mode, and the limiting rod penetrates through the arc-shaped groove.

Preferably, the limiting rod at the top of the arc-shaped groove is fixedly connected with a fixing ring, one end of the arc-shaped clamping block is provided with a connecting hole in a penetrating mode, and the other end of the branch pull rope is fixedly connected in the connecting hole in a penetrating mode.

Preferably, one end of the pulling rod is provided with a penetrating opening in a penetrating mode, two side walls of the fixing rod are provided with a plurality of limiting holes with the same interval, and one end of the arc-shaped clamping block movably penetrates through the penetrating opening and the limiting holes.

Compared with the prior art, the utility model has the beneficial effects that:

the gear block on the wall of the inserted shaft is meshed with the pinion by pressing the pressing block, so that the gear wheel drives the sliding plate to move upwards in the sliding groove, the main pull rope is pulled, the linkage branch pull rope controls the arc-shaped fixture block to slide on the limiting rod through the main pull rope, the arc-shaped fixture block is separated from the through hole and the limiting hole, and the arc-shaped fixture block cannot be momentarily sensed as long as one end of the arc-shaped fixture block does not touch the wall of the sliding cavity, so that blocking is avoided;

simultaneously, the pressing block is loosened to enable the inserting shaft to move upwards under the action of the spring, so that the main pull rope gives up traction, and the arc-shaped clamping block autonomously displaces under the limiting effect of the arc-shaped groove until penetrating through the penetrating port and the limiting hole to play a limiting effect.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

fig. 4 is a schematic structural view of an arc-shaped fixture block according to the present invention.

In the figure: 1. a handle; 10. a chamber; 101. a chute; 102. perforating; 103. a port; 2. drawing a rod; 21. a cavity; 22. perforating; 3. a limiting plate; 31. a limiting ring; 4. fixing the rod; 41. a slide chamber; 42. A limiting hole; 5. a base plate; 6. installing a frame; 61. a pressing block; 62. a spring; 63. inserting a shaft; 7. a fixed shaft; 71. a pinion gear; 72. a bull gear; 73. a slide plate; 731. a slider; 74. a tooth block; 75. a main pull rope; 751. a branch pull rope; 8. a limiting rod; 80. a fixing ring; 81. an arc-shaped fixture block; 811. an arc-shaped slot; 82. and connecting the holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a jamming prevention pull rod comprises a handle 1, wherein the top of the handle 1 is fixedly connected with a parallel mounting frame 6, the bottom of the mounting frame 6 is fixedly connected with one end of a pull rod 2, and the other end of the pull rod 2 is slidably mounted in a fixed rod 4;

a cavity 10 is formed in the mounting frame 6, parallel through holes 103 are formed in the bottom of the mounting frame 6, a cavity 21 is formed in the top of the drawing rod 2 in a penetrating mode, a sliding cavity 41 is formed in the fixed rod 4, the bottom of the drawing rod 2 is arranged in the sliding cavity 41, the cavity 21, the cavity 10 and the sliding cavity 41 are communicated with each other, a limiting plate 3 is fixedly arranged at the joint of the drawing rod 2 and the fixed rod 4, a limiting ring 31 is fixedly arranged in the middle of the limiting plate 3, and the limiting ring 31 is arranged at the end wall of the fixed rod 4;

the bottom of the parallel fixed rods 4 is fixedly connected with a bottom plate 5.

Referring to fig. 2 or 3, the pressing block 61 is slidably mounted inside the mounting frame 6, the top of the pressing block 61 movably penetrates through the top of the mounting frame 6, the middle portion of the pressing block 61 inside the mounting frame 6 is fixedly connected with the inserting shaft 63, the inserting shaft 63 movably penetrates through a through hole 102 formed in the top wall of the handle 1 to the cavity 10, and the top wall of the handle 1 inside the mounting frame 6 is movably connected with the bottom wall of the pressing block 61 through a spring 62.

Referring to fig. 2 or 3, a parallel fixed shaft 7 is fixedly installed on a side wall inside the chamber 10, the fixed shaft 7 is sleeved with a large gear 72, the fixed shaft 7 above the large gear 72 is sleeved with a small gear 71, a sliding groove 101 is formed on the side wall of the chamber 10 beside the fixed shaft 7, a sliding block 731 is slidably connected inside the sliding groove 101, and a side wall of the sliding block 731 is fixedly connected with a sliding plate 73.

Referring to fig. 2 or 3, a plurality of tooth blocks 74 with smaller diameters are fixedly connected to one side wall of the spindle 63 inside the chamber 10, the plurality of tooth blocks 74 with smaller diameters are engaged with tooth spaces of an outer ring of the pinion 71, a plurality of tooth blocks 74 are fixedly connected to a bottom side wall of the sliding plate 73, the plurality of tooth blocks 74 are engaged with tooth spaces of an outer ring of the bull gear 72, a flexible main pull rope 75 is fixedly connected to a bottom of the sliding plate 73, and the main pull rope 75 penetrates through the cavity 21.

Referring to fig. 2 or 3, one end of the main rope 75 inside the cavity 21 is fixedly connected with two branch ropes 751, an inner side wall of one end of the cavity 21 is fixedly connected with a parallel limiting rod 8, the limiting rod 8 is movably connected with an arc-shaped block 81, an arc-shaped groove 811 is formed in the middle of the arc-shaped block 81, and the limiting rod 8 penetrates through the arc-shaped groove 811.

Referring to fig. 4, the fixing ring 80 is fixedly connected to the limiting rod 8 at the top of the arc-shaped groove 811, one end of the arc-shaped block 81 is provided with a connecting hole 82 in a penetrating manner, and the other end of the branch pull rope 751 is fixedly connected in the connecting hole 82 in a penetrating manner.

Referring to fig. 1 or 2, a through opening 22 is formed through one end of the pulling rod 2, a plurality of limiting holes 42 with the same distance are formed on two side walls of the fixing rod 4, and one end of the arc-shaped fixture block 81 movably penetrates through the through opening 22 and the limiting holes 42.

Under the action of the main pull rope 75, the arc-shaped fixture block 81 is displaced under the action of the arc-shaped groove 811, the displacement distance is equal to the distance between the through opening 22 and the limiting hole 42, and the main pull rope 75 and the branch pull rope 751 are made of flexible materials.

The working principle is as follows: when the device is used normally, the gear block 74 on the wall of the inserting shaft 63 is meshed with the pinion 71 by pressing the pressing block 61, so that the large gear 72 drives the sliding plate 73 to move upwards in the sliding groove 101, the main pulling rope 75 is pulled by the sliding plate, the linkage branch pulling rope 751 controls the arc-shaped clamping block 81 to slide on the limiting rod 8 through the main pulling rope 75, one end of the arc-shaped clamping block 81 is separated from the penetrating port 22 and the limiting hole 42, the pulling rod 2 can be pulled in the fixing rod 4 by unlocking the limiting structure, when the limiting is needed to be newly limited, the inserting shaft 63 is enabled to move upwards by loosening the pressing block 61 under the action of the spring 62, the main pulling rope 75 is not forced to give up traction, the arc-shaped clamping block 81 slides downwards under the action of the arc-shaped groove 811 due to the action of the arc-shaped groove 811, the arc-shaped clamping block automatically displaces until penetrating port 22 and the limiting hole 42, and plays a limiting role.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an anti-sticking pull rod that pauses, includes handle (1), parallel installing frame (6) of top rigid coupling of handle (1), the one end of pole (2) is taken out to installing frame (6) bottom rigid coupling, the other end slidable mounting of taking out pole (2) is in dead lever (4), its characterized in that:

a cavity (10) is formed in the mounting frame (6), parallel through holes (103) are formed in the bottom of the mounting frame (6), a cavity (21) is formed in the top of the drawing rod (2) in a penetrating mode, a sliding cavity (41) is formed in the fixed rod (4), the bottom of the drawing rod (2) is arranged in the sliding cavity (41), the cavity (21), the cavity (10) and the sliding cavity (41) are communicated with each other, a limiting plate (3) is fixedly arranged at the joint of the drawing rod (2) and the fixed rod (4), a limiting ring (31) is fixedly arranged in the middle of the limiting plate (3), and the limiting ring (31) is arranged at the end wall of the fixed rod (4);

the bottom of the parallel fixed rods (4) is fixedly connected with a bottom plate (5).

2. The anti-jamming pull rod of claim 1, wherein: the mounting frame is characterized in that the pressing block (61) is slidably mounted inside the mounting frame (6), the top of the pressing block (61) movably penetrates through the top of the mounting frame (6), the middle of the pressing block (61) inside the mounting frame (6) is fixedly connected with an inserting shaft (63), the inserting shaft (63) movably penetrates through a through hole (102) formed in the top wall of the handle (1) to the cavity (10), and the top wall of the handle (1) inside the mounting frame (6) is movably connected with the bottom wall of the pressing block (61) through a spring (62).

3. The anti-jamming pull rod of claim 1, wherein: the side wall of the inside of the chamber (10) is fixedly provided with a parallel fixed shaft (7), the fixed shaft (7) is sleeved with a large gear (72), the fixed shaft (7) above the large gear (72) is sleeved with a small gear (71), the side wall of the chamber (10) beside the fixed shaft (7) is provided with a sliding groove (101), the sliding groove (101) is connected with a sliding block (731) in a sliding mode, and one side wall of the sliding block (731) is fixedly connected with a sliding plate (73).

4. The anti-jamming pull rod of claim 3, wherein: the cavity-type gear shifting device is characterized in that a plurality of tooth blocks (74) with small diameters are fixedly connected to one side wall of a plug shaft (63) inside the cavity (10), the tooth grooves of the outer rings of the tooth blocks (74) with small diameters and the pinion (71) are meshed with each other, a plurality of tooth blocks (74) are fixedly connected to the bottom side wall of the sliding plate (73), the tooth blocks (74) are meshed with the tooth grooves of the outer ring of the bull gear (72), the bottom of the sliding plate (73) is fixedly connected with a flexible main pull rope (75), and the main pull rope (75) penetrates through the cavity (21).

5. The anti-jamming pull rod of claim 4, wherein: one of the main pull rope (75) in the cavity (21) is fixedly connected with two branch pull ropes (751), the inner side wall of one end of the cavity (21) is fixedly connected with a parallel limiting rod (8), the limiting rod (8) is movably connected with an arc-shaped fixture block (81), the middle of the arc-shaped fixture block (81) is penetrated and provided with an arc-shaped groove (811), and the limiting rod (8) is penetrated and provided with the arc-shaped groove (811).

6. The anti-jamming pull rod of claim 5, wherein: the limiting rod (8) at the top of the arc-shaped groove (811) is fixedly connected with a fixing ring (80), one end of the arc-shaped fixture block (81) penetrates through a connecting hole (82), and the other end of the branch pull rope (751) is fixedly connected in the connecting hole (82) in a penetrating manner.

7. An anti-jamming tie rod according to claim 5 or 6, wherein: one end of the drawing rod (2) is provided with a penetrating opening (22) in a penetrating mode, two side walls of the fixing rod (4) are provided with a plurality of limiting holes (42) with the same interval, and one end of the arc-shaped clamping block (81) movably penetrates through the penetrating opening (22) and the limiting holes (42).