CN115556813A - Quick plug pull rod assembly and transport tool comprising same - Google Patents

Abstract

The invention discloses a quick plugging pull rod assembly and a carrying tool formed by the same, wherein the quick plugging pull rod assembly comprises a pull rod and a scissor hook plugging assembly connected to the lower end of the pull rod; the carrying tool comprises a carrying tool body and the quick pull rod assembly. The scissors hook plug assembly is provided with a first hook and a second hook which are hinged together in a crossed mode, the whole quick plug pull rod assembly can be quickly connected to the carrying tool body through the first hook and the second hook, and the quick plug pull rod assembly and the carrying tool body can be quickly mounted and dismounted, and are convenient to use and store.

Description

Quick plug pull rod assembly and transport tool comprising same

Technical Field

The invention relates to the technical field of pull rods, in particular to a quick pull rod plugging assembly and a carrying tool formed by the same.

Background

The pull rod is an important part on carrying tools such as a trolley, a travel trailer box, a schoolbag, a luggage carrier and the like, and the carrying tools can be moved more conveniently by pulling the pull rod. At present, most of the pull rods are fixed on the body of the carrying tool through nuts or welding, for example, the invention patent with the application number of CN202020361572.3 discloses a trolley pull rod, the pull rod is installed on a trolley frame, when the trolley pull rod is installed, a pull rod base is arranged on the trolley frame, an air pressure rod is arranged on the pull rod base, and the pull rod is fixed at the top end of the air pressure rod through nuts, so that the pull rod can be stably installed on the trolley frame. However, the connection mode adopting the nut or welding has the big problem that the pull rod and the carrying tool body are inconvenient to disassemble, so that the whole carrying tool is inconvenient to store and occupies a large space.

Disclosure of Invention

The invention aims to solve the problems and provides a quick pull rod plugging assembly and a carrying tool formed by the quick pull rod plugging assembly.

The purpose of the invention is realized by the following technical scheme: the quick pull rod plugging assembly comprises a pull rod and a scissor hook plugging assembly connected to the lower end of the pull rod.

Furthermore, scissors hook plug subassembly includes shell and scissors hook, scissors hook set up in the shell, the shell then with the pull rod is connected.

Furthermore, the scissors hook comprises a first hook and a second hook which are hinged together through a connecting shaft in a crossed mode, and a spring connected between the control ends of the first hook and the second hook, and the first hook and the second hook can be opened and closed by taking the connecting shaft as a fulcrum.

Furthermore, the control ends of the first hook and the second hook are respectively provided with a pressing part, and the two opposite side walls of the shell are respectively provided with a through hole; the control ends of the first hook and the second hook are arranged in the shell, and the pressing parts on the first hook and the second hook respectively penetrate through the two through holes and then extend out of the shell; the hook ends of the first hook and the second hook extend out of the shell.

As another preferred scheme, the scissors hook plugging component is connected with the pull rod through a universal rotary connecting structure, and both the pull rod and the scissors hook plugging component can rotate relative to the universal rotary connecting structure.

Furthermore, the universal rotary connecting structure comprises a rotary connecting piece, a rotary shaft socket and a universal connecting shaft; one end of the universal connecting shaft is connected with the shell through a first rotating shaft screw, the other end of the universal connecting shaft is connected with the rotating connecting piece through a second rotating shaft screw, and the universal connecting shaft can rotate by taking the first rotating shaft screw and the second rotating shaft screw as fulcrums respectively.

Still further, the rotating connection spare upper end is provided with the rotation axis, the rotation axis receives the socket rotatable to be installed on the rotation axis, be provided with on the rotation axis and be used for preventing the rotation axis receive the socket with the steel axle that the rotation axis breaks away from, the rotation axis receives socket fixed connection in the lower extreme of pull rod.

The first rotating shaft screw and the second rotating shaft screw are vertically distributed at 90 degrees.

After the universal connecting shaft rotates by taking the first rotating shaft screw as a fulcrum, a minimum included angle alpha formed between the universal connecting shaft and the upper surface of the shell is 80-88 degrees, and when the universal connecting shaft rotates to the position of the minimum included angle alpha, the lower end of the rotating connecting piece is in contact with the upper surface of the shell.

The pull rod comprises a small pull rod pipe and a large pull rod pipe sleeved outside the small pull rod pipe, the small pull rod pipe is connected with the rotating shaft through a socket, and the large pull rod pipe can move up and down along the small pull rod pipe; the pull rod big pipe is provided with a plurality of locating hole from top to bottom, be provided with on the pull rod tubule and run through the length location card beans of locating hole.

The application also discloses a carrying tool, which comprises a carrying tool body and the quick plugging pull rod assembly; be provided with two hook spare on the handling tool body, can hold with a hook tightly respectively and loosen two hook spare when the scissors hook on the quick plug pull rod assembly opens and closes.

Compared with the prior art, the method has the following beneficial effects:

(1) According to the invention, the lower end of the pull rod is connected with the scissors hook plugging component, the scissors hook plugging component is provided with the first hook and the second hook which are hinged together in a crossed manner, and the whole quick plugging pull rod component can be quickly connected to the carrying tool body through the first hook and the second hook, so that the quick plugging pull rod component and the carrying tool body can be quickly installed and detached.

(2) The scissor hook plugging component is connected with the pull rod through the universal rotary connecting structure, so that the pull rod can swing left and right by taking the second rotary shaft screw on the universal rotary connecting structure as a fulcrum, and can swing up and down by taking the first rotary shaft screw on the universal rotary connecting structure as a fulcrum, and the practicability of the scissor hook plugging component is greatly improved.

(3) The rotating shaft and the rotating shaft receiving socket can rotate, so that the pull rod can rotate, arms cannot be screwed tightly when the carrying tool is pulled, and the carrying tool is more in line with human engineering.

(4) The telescopic pull rod can be stretched, so that the telescopic pull rod is suitable for people with different heights, and meanwhile, the telescopic pull rod occupies a smaller area after being contracted and is convenient to store.

(5) After the universal connecting shaft rotates by taking the first rotating shaft screw as a fulcrum, the minimum included angle alpha formed between the universal connecting shaft and the upper surface of the shell is 80-88 degrees, when the universal connecting shaft rotates to the position of the minimum included angle alpha, the lower end of the rotating connecting piece is contacted with the upper surface of the shell, when the carrying tool does not need to be pulled, the pull rod can be pushed to the position of the minimum included angle alpha, the pull rod can always incline and stand towards one side of the carrying tool body by means of the gravity of the pull rod, the pull rod is prevented from falling to the ground, and meanwhile, the design of the minimum included angle alpha can enable the pull rod not to excessively influence the space above the carrying tool body.

Additional features of the present application will be set forth in part in the description which follows. Additional features of some portions of the present application will be apparent to those skilled in the art upon examination of the following description and accompanying drawings or may be learned by the manufacture or operation of the embodiments. The features disclosed in this application may be realized and attained by practice or use of various methods, instrumentalities and combinations of the specific embodiments described below.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. Like reference symbols in the various drawings indicate like elements. Wherein, the first and the second end of the pipe are connected with each other,

fig. 1 is a structural diagram of the quick pull rod assembly of the present invention.

Fig. 2 is a structural view of a drawbar of the present invention.

Fig. 3 is a structural diagram of the connection between the scissors hook plugging component and the universal rotary connection structure.

Fig. 4 is a structural view of the housing of the present invention.

Fig. 5 is a structural view of the scissor hook of the present invention.

Fig. 6 is a schematic view of the connection between the quick pull rod assembly and the carrying tool body according to the present invention.

Fig. 7 is a schematic view of the carrier body of the present invention provided with a hook.

Fig. 8 is an enlarged schematic view of a portion a of fig. 6.

The reference numbers in the above figures refer to: the tool comprises a carrying tool body, 2-universal rotary connecting structure, 3-pull rod, 4-sinking platform, 5-hook inserting hole, 6-hook fastening piece, 7-handle, 8-length positioning clamping bean, 9-pull rod large tube, 10-positioning hole, 11-thick tube sleeve, 12-pull rod small tube, 13-thrust positioning clamping bean, 14-rotating shaft, 15-rotating shaft receiving socket, 16-sliding gasket, 17-rotary connecting piece, 18-universal connecting shaft, 19-scissor hook plug-pull assembly, 20-shell, 21-through hole, 22-first hook, 23-second hook, 24-pressing part, 26-spring, 27-connecting shaft, 28-first rotating shaft screw, 29-second rotating shaft screw, 30-steel shaft and 31-scissor hook.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort shall fall within the protection scope of the present application.

It should be noted that if the terms "first", "second", etc. are used in the description and claims of this application and in the above-described drawings, they are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the application herein. Furthermore, if the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, if the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", etc. are referred to, their indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

In addition, in this application, the terms "mounted," "disposed," "provided," "connected," "coupled," and the like should be construed broadly if they refer to one another. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example 1

The embodiment discloses a quick pull rod plugging assembly, which comprises a pull rod 3 and a scissor hook plugging assembly 19, wherein the scissor hook plugging assembly 19 is connected to the lower end of the pull rod 3.

Specifically, as shown in fig. 2, the pull rod 3 includes a small pull rod tube 12 and a large pull rod tube 9, the lower end of the small pull rod tube 12 is connected to the scissor hook plug assembly 19, and the large pull rod tube 9 is sleeved outside the small pull rod tube 12 and can move up and down along the small pull rod tube 12, so that the length of the pull rod 3 can be extended and contracted, the rapid plug pull rod assembly of the present application can be suitable for people of different heights, and the rapid plug pull rod assembly can be better accommodated.

In order to fix the position of the large pull rod tube 9, the large pull rod tube 9 is provided with a plurality of positioning holes 10 from top to bottom, the small pull rod tube 12 is provided with a length positioning clamping bean 8, and after the position of the large pull rod tube 9 is adjusted, the length positioning clamping bean 8 penetrates through the corresponding positioning holes 10 to fix the positions of the large pull rod tube 9 and the small pull rod tube 12.

In addition, the lower end of the small pull rod pipe 12 is also provided with a thrust positioning clamping bean 13, and the thrust positioning clamping bean 13 can prevent the small pull rod pipe 12 from being inserted into the large pull rod pipe 9 too deeply.

Meanwhile, the lower end of the large pull rod pipe 9 is provided with a thick pipe sleeve 11, and the thick pipe sleeve 11 is arranged to avoid deformation of the pull rod caused by overlarge stress of a joint part of the small pull rod pipe 12 and the large pull rod pipe 9. In addition, the top end of the pull rod large tube 9 is also provided with a handle 7.

As shown in fig. 4 and 5, the scissors hook plug assembly 19 includes a housing 20 and scissors hooks 31, the scissors hooks 31 are disposed in the housing 20, and on the basis of this structure, the housing 20 can be connected to the lower end of the pull rod small tube 12.

Specifically, the scissor hook 31 comprises a first hook 22 and a second hook 23 which are hinged together through a connecting shaft 27 in a crossed manner, the first hook 22 and the second hook 23 can be opened and closed by taking the connecting shaft 27 as a fulcrum, and the whole quick-plugging pull rod assembly can be installed on the carrying tool body through the first hook 22 and the second hook 23.

In addition, a spring 26 is connected between the control ends of the first hook 22 and the second hook 23, and pressing portions 24 are provided on the control ends of the first hook 22 and the second hook 23. Correspondingly, through holes 21 are formed in two opposite side walls of the shell 20, control ends of the first hook 22 and the second hook 23 are installed in the shell 20, pressing portions 24 of the first hook 22 and the second hook 23 penetrate through the two through holes 21 respectively and then extend out of the shell 20, and hook ends of the first hook 22 and the second hook 23 also extend out of the shell 20, so that the carrying tool is conveniently connected with the carrying tool body. In particular, the two ends of the connecting shaft 27 can be fixed to the housing 20, so that the scissors hook 31 can be more stably mounted on the housing 20.

In the above structure, when the spring 26 is in a natural state, the first hook 22 and the second hook 23 are in an open state, and when the pressing portions 24 on the first hook 22 and the second hook 23 are pressed at the same time, the spring 26 is pressed to contract, the first hook 22 and the second hook 23 rotate around the connecting shaft 27 as a fulcrum, and the entire scissor hook 31 is in a closed state.

During the use, extrude simultaneously and press the splenium 24 on first couple 22 and the second couple 23, make scissors hook 31 then be in closed state, insert scissors hook 31 in the latch hook structure on the handling tool body, then loosen and press the splenium 24 on first couple 22 and the second couple 23, first couple 22 and second couple 23 reset to open the state under the effect of spring 26, first couple 22 and second couple 23 then can hook the latch hook structure on the handling tool body this moment, make quick the connecting on the handling tool body of whole quick pull rod subassembly.

Example 2

This embodiment is substantially the same as embodiment 1, except that the scissors hook plugging member 19 in this embodiment is connected to the pull rod 3 through the universal rotation connecting structure 2, as shown in fig. 1. On the basis of the structure, the pull rod 3 and the scissors hook plugging component 19 can rotate relative to the universal rotary connecting structure 2.

Specifically, as shown in fig. 3, the universal rotary joint structure 2 includes a rotary joint 17, a rotary shaft receiving socket 15, and a universal joint shaft 18. When connected, one end of the universal connecting shaft 18 is connected to the housing 20 by a first rotating shaft screw 28, and the other end thereof is connected to the rotary connector 17 by a second rotating shaft screw 29. In the specific arrangement, the housing 20 and the rotary connector 17 can be provided with U-shaped openings, and two ends of the universal connecting shaft 18 are respectively located in the U-shaped openings of the housing 20 and the rotary connector 17, so that the universal connecting shaft 18 can rotate by taking the first rotating shaft screw 28 and the second rotating shaft screw 29 as fulcrums respectively.

Since the first rotation axis screw 28 and the second rotation axis screw 29 are vertically arranged at 90 degrees to each other, the swivel connector 17 can swing up and down as well as left and right, and the utility of the present application is improved.

Further, a rotary shaft 14 is provided at the upper end of the rotary joint 17, and a rotary shaft receiving socket 15 is attached to the rotary shaft 14. The diameter of the rotating shaft 14 is smaller than the diameter of the mounting hole of the rotating shaft receiving socket 15, so that the rotating shaft receiving socket 15 can rotate on the rotating shaft 14. In addition, the rotating shaft 14 is provided with a steel shaft 30 for preventing the rotating shaft from being separated from the rotating shaft 14 by the socket 15.

A sliding gasket 16 is also arranged between the rotating shaft socket 15 and the rotating connecting piece 17, and the sliding gasket 16 can reduce the friction force between the rotating shaft socket 15 and the rotating connecting piece 17.

When the device is installed, the rotating shaft socket 15 can be inserted into the small pull rod tube 12 and is in over-hard fit with the small pull rod tube 12, and the rotating shaft socket 15 can also be welded and fixed with the lower end of the small pull rod tube 12. Since the rotation shaft receiving socket 15 can rotate on the rotation shaft 14, the drawbar 3 can also rotate.

Through foretell revolution mechanic, no matter the user can adjust to a more comfortable angle of exerting oneself with which hand pulling fast plug pull rod assembly about with, the arm can not be twisted up with strength, more accords with human engineering.

In addition, as shown in fig. 8, due to the blocking effect of the U-shaped opening on the housing 20, after the universal connection shaft 18 rotates around the first rotation shaft screw 28 as a fulcrum, the minimum included angle α formed between the universal connection shaft and the upper surface of the housing 20 is 80 to 88 degrees, in this embodiment, the minimum included angle α is set to 85 degrees, that is, when the scissor hook 31 is horizontally inserted into the carrying tool body and the pull rod 3 is rotated upward, the pull rod 3 can only be rotated to a position of 85 degrees with the upper surface of the housing 20, as shown in fig. 8. When not using this quick plug pull rod assembly, can push back pull rod 3 to foretell 85 degrees positions, pull rod 3 is in the state of erectting toward the slope of handling tool body one side this moment, and under the action of gravity of pull rod 3 self, pull rod 3 can not overturn downwards and fall subaerial and be polluted, then need not bow when wanting to reuse the pull rod and pick up the pull rod. In addition, when the pull rod 3 is located at the position, the upper space of the carrying tool body cannot be excessively occupied, and the influence on the stacking of goods is avoided.

In addition, when the pull rod 3 rotates to the above 85-degree position, the lower end of the rotary connecting piece 17 is in linear contact with the upper surface of the shell 20, and the pull rod 3 cannot swing left and right through the abutting action of the rotary connecting piece 17, so that the pull rod 3 is prevented from swinging left and right and falling to the ground. Through the structure, the pull rod can be limited at a fixed position by the gravity of the pull rod through simple action without adding additional parts. Of course, it is also possible to provide a washer between the universal joint shaft 18 and the swivel connection 17 to increase the rotational damping between the two, which makes it possible to better secure the pull rod in this position. Because most parts of the quick pull rod plugging assembly are positioned at the lower end of the quick pull rod plugging assembly, the gravity center of the quick pull rod plugging assembly can be reduced, and the pull rod is more stable in the position.

Example 3

As shown in fig. 6, the present embodiment discloses a carrying tool, which includes a carrying tool body 1 and the quick pull/pull rod assembly of embodiment 2, wherein the quick pull/pull rod assembly is detachably mounted on the carrying tool body 1, and when in use, the whole carrying tool can be pulled by the quick pull/pull rod assembly.

The carrying tool body 1 may be a flatbed body, a trunk body, a bag body, or the like, and in the present embodiment, the carrying tool body 1 is taken as the flatbed body for illustration.

When the flat car body is arranged specifically, a lock hook structure can be arranged on the flat car body, for example, two hook members 6 are arranged, the distance between the two hook members 6 needs to be larger than the width of the closed scissors hook 31, when the flat car body is used, the scissors hook 31 is controlled to be closed, the scissors hook 31 passes through the space between the two hook members 6, then the scissor hook 31 is loosened, the scissor hook 31 is pulled back, the first hook 22 and the second hook 23 on the scissor hook 31 hook the two hook members 6 respectively, and thus the quick pull rod assembly can be quickly installed on the body of the flat car. When the quick pull-out and pull-in rod assembly needs to be disassembled, the scissor hook plugging assembly 19 is pushed forward, the first hook 22 and the second hook 23 are separated from the two hook members 6, the two pressing portions 24 are pressed, the scissor hook 31 is closed, and finally the scissor hook 31 is withdrawn from between the two hook members 6.

The two hooks 6 may be shaped as desired, and may be two shafts or two hook holes, so long as the first hook 22 and the second hook 23 can hook thereon.

Alternatively, as shown in fig. 7, the side walls of the body of the flat car may be provided with hook insertion holes 5, and the two hooking members 6 are located in the hook insertion holes 5. When the scissors hook is used, the scissors hook 31 is inserted into the hook insertion hole 5 and then hooked on the two hook members 6, so that the hook members 6, the scissors hook 31 and other parts can be prevented from being exposed outside to influence the appearance.

Since stress is concentrated at the position where the scissor hook 31 is combined with the hanger insertion hole 5 and the scissor hook 31 is relatively weak, it is possible to achieve a better fixing effect by allowing a portion of the housing 20 to be inserted into the hanger insertion hole 5 when the hanger insertion hole 5 is designed. For this reason, this embodiment sets up heavy platform 4 on the lateral wall of flatbed body, and the interior profile of heavy platform is unanimous with the appearance of shell 20, and couple patchhole 5 is located the bottom of heavy platform 4, and when hooking cleaver hook 31 hook clasp 6, the front end of shell 20 can be inserted into heavy platform 4, so not only can increase joint strength, can also restrict scissors hook plug subassembly 19 and swing about and rotatory, improves the stability of connecting.

When the multi-rod pulling device is specifically implemented, the lock hook structures can be installed at different positions of the flat car body, so that the pull rod assembly capable of being quickly plugged and pulled can be installed at different positions of the flat car body, and the multi-rod pulling device can achieve the cooperative work of pulling multiple rods at the same time. Of course, the latch hook structure can be preassembled on different pulled pieces, so that application scenes that different products are pulled by the same pull rod and the like are realized.

The standardized quick plug pull rod assembly has the advantages of being low in cost, quick in replacement, free in combination, resource-saving and the like. If movable products such as a flat car, a camper, a baby carriage, a draw-bar box and the like can adopt the standardized quick plugging draw-bar assembly, more cost can be saved, more resources are saved, and the maintenance time and the cost are reduced.

It should be noted that all features disclosed in this specification, or all steps of a method or process so disclosed, may be combined in any combination, except features and/or steps that are mutually exclusive.

In addition, the above-described embodiments are exemplary, and those skilled in the art, having benefit of this disclosure, will appreciate numerous solutions that are within the scope of the disclosure and that fall within the scope of the invention. It should be understood by those skilled in the art that the present specification and figures are illustrative only and are not intended to be limiting on the claims. The scope of the invention is defined by the claims and their equivalents.

Claims (10)

1. The quick pull rod plugging assembly is characterized by comprising a pull rod (3) and a scissor hook plugging assembly (19) connected to the lower end of the pull rod (3).

2. The quick connect-disconnect lever assembly of claim 1, wherein the scissor hook disconnect assembly (19) comprises a housing (20) and a scissor hook (31), the scissor hook (31) being disposed within the housing (20), the housing (20) being connected to the lever (3).

3. The quick-connect pull rod assembly according to claim 2, wherein the scissor hook (31) comprises a first hook (22) and a second hook (23) which are hinged together in a crossed manner by a connecting shaft (27), and a spring (26) connected between control ends of the first hook (22) and the second hook (23), wherein the first hook (22) and the second hook (23) can be opened and closed by taking the connecting shaft (27) as a fulcrum.

4. The quick-plugging pull rod assembly according to claim 3, wherein the control ends of the first hook (22) and the second hook (23) are respectively provided with a pressing portion (24), and two opposite side walls of the housing (20) are respectively provided with a through hole (21); the control ends of the first hook (22) and the second hook (23) are installed in the shell (20), and pressing parts (24) on the first hook (22) and the second hook (23) respectively penetrate through the two through holes (21) and then extend out of the shell (20); the hook ends of the first hook (22) and the second hook (23) extend out of the shell (20).

5. The quick-plugging pull rod assembly according to claim 2, wherein the scissor hook plugging assembly (19) is connected with the pull rod (3) through a universal rotary connection structure (2), and both the pull rod (3) and the scissor hook plugging assembly (19) can rotate relative to the universal rotary connection structure (2).

6. The quick connect-disconnect lever assembly of claim 5, wherein the universal swivel connection structure (2) comprises a swivel connection (17), a swivel shaft receptacle (15), and a universal connection shaft (18); one end of the universal connecting shaft (18) is connected with the shell (20) through a first rotating shaft screw (28), the other end of the universal connecting shaft is connected with the rotating connecting piece (17) through a second rotating shaft screw (29), and the universal connecting shaft (18) can rotate by taking the first rotating shaft screw (28) and the second rotating shaft screw (29) as pivots respectively;

the utility model discloses a pull rod, including swivel connector (17), rotation axis (14), socket (15) are installed to the rotation axis, be provided with rotation axis (17) upper end, the rotation axis receives socket (15) rotatable installation on rotation axis (14), be provided with on rotation axis (14) and be used for preventing the rotation axis receive socket (15) with steel axle (30) that rotation axis (14) break away from, the rotation axis receive socket (15) fixed connection in the lower extreme of pull rod (3).

7. The quick-connect/disconnect lever assembly of claim 6, wherein the first pivot screw (28) and the second pivot screw (29) are disposed at 90 degrees relative to each other.

8. The quick connect-disconnect lever assembly according to claim 7, wherein the minimum angle α formed between the universal connecting shaft (18) and the upper surface of the housing (20) is 80-88 degrees after the universal connecting shaft (18) rotates around the first rotating shaft screw (28), and when the universal connecting shaft (18) rotates to the position of the minimum angle α, the lower end of the rotary connecting member (17) contacts the upper surface of the housing (20).

9. The quick-connect/disconnect pull rod assembly according to claim 6, wherein the pull rod (3) comprises a small pull rod tube (12) and a large pull rod tube (9) sleeved outside the small pull rod tube (12), the small pull rod tube (12) is connected with the rotating shaft receiving socket (15), and the large pull rod tube (9) can move up and down along the small pull rod tube (12); the pull rod large pipe (9) is provided with a plurality of positioning holes (10) from top to bottom, and the pull rod small pipe (12) is provided with length positioning clamping beans (8) capable of penetrating through the positioning holes (10).

10. A carrying tool, characterized in that it comprises a carrying tool body (1) and a quick-connect pull rod assembly as claimed in any one of claims 1 to 9; be provided with two hook spare (6) on handling tool body (1), can catch with a hook and loosen two hook spare (6) respectively when scissors hook (31) on the quick plug pull rod assembly open and close.

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