CN213524203U

CN213524203U - Pull rod assembly

Info

Publication number: CN213524203U
Application number: CN202022423352.1U
Authority: CN
Inventors: 张海波
Original assignee: Shanghai Denghe Trading Co ltd
Current assignee: Shanghai Denghe Trading Co ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-06-25
Anticipated expiration: 2030-10-28

Abstract

The utility model discloses a pull rod assembly, including the pull rod seat, it has the pull handle groove to dig on the pull rod seat, be equipped with the pull handle in the pull handle groove, the below in pull handle groove is equipped with the piston section of thick bamboo of fixing on the pull rod seat, the piston section of thick bamboo has the piston chamber that is perpendicular upper and lower extension, be equipped with relative its gliding pull rod about doing on the pull rod seat, the pull handle is connected to the one end of pull rod, the other end is equipped with the piston of sliding connection in the piston chamber, be equipped with intake pipe and the outlet duct that is linked together with the piston chamber on the piston section of thick bamboo, there is miniature pump through the pipe connection in the intake pipe, there is miniature aspirator through the pipe connection on the outlet duct, be equipped with the power that gives miniature pump and miniature aspirator power supply on the pull rod seat, still be equipped with the first switch that is. The pull rod assembly has the characteristics of automatic lifting and convenient use, and has complete overall functions and strong practicability.

Description

Pull rod assembly

Technical Field

The utility model relates to a draw-bar box makes technical field, and more specifically says that it relates to a draw bar assembly.

Background

Traditional draw bar assembly is set up on the case and bag main part, realizes the pull rod extension or shortens through manual pressing, carries out dragging of box. After the pull rod assembly is repeatedly stretched and retracted, gaps among the parts are increased, so that the pull rod naturally falls under the stretching state to influence the dragging and moving use of the box body, and the manual opening and closing is laborious, so that the overall effect is poor. Therefore, the utility model provides a draw bar assembly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the above-mentioned prior art, provide a draw bar assembly, this draw bar assembly has automatic rising, convenient to use's characteristics.

In order to solve the technical problem, the purpose of the utility model is to realize like this: the utility model relates to a pull rod assembly, which comprises a pull rod seat, wherein a pull rod groove is dug on the pull rod seat, a pull rod is arranged in the pull rod groove, a piston cylinder fixed on the pull rod seat is arranged below the pull rod groove, the piston cylinder is provided with a piston cavity extending vertically, a pull rod which slides up and down relative to the pull rod seat is arranged on the pull rod seat, one end of the pull rod is connected with the pull handle, the other end of the pull rod is provided with a piston which is connected in a piston cavity in a sliding way, the piston cylinder is provided with an air inlet pipe and an air outlet pipe which are communicated with the piston cavity, the air inlet pipe is connected with a micro inflator pump through a pipeline, the air outlet pipe is connected with a micro air pump through a pipeline, the pull rod seat is provided with a power supply for supplying power to the micro air pump and the micro air pump, the pull rod seat is also provided with a first switch which is electrically connected with the power supply and is used for controlling the operation of the micro air pump and a second switch for controlling the operation of the micro air pump.

The utility model discloses further set up to: the pull handle groove is internally provided with an upper protective pipe sleeved on the pull rod, a middle protective pipe sleeved on the upper protective pipe and a lower protective pipe sleeved on the middle protective pipe, the top of the upper protective pipe is connected with the pull handle, the outer pipe wall of the bottom of the upper protective pipe is provided with a first limiting ring, the bottom of the lower protective pipe is connected with the pull rod seat, the inner pipe wall of the top of the lower protective pipe is provided with a second limiting ring, the inner pipe wall of the middle protective pipe is provided with a third limiting ring close to the top, the third limiting ring is sleeved on the upper protective pipe and limits the first limiting ring to go upwards, the outer pipe wall of the middle protective pipe is provided with a fourth limiting ring close to the bottom, and the second limiting ring is sleeved on the middle protective pipe and limits the fourth limiting ring to.

The utility model discloses further set up to: the air inlet pipe is connected with a first one-way valve communicated from the outside to the piston cavity in series, and the air outlet pipe is connected with a second one-way valve communicated from the piston cavity to the outside in series.

The utility model discloses further set up to: and the pull rod seat is provided with a power supply, a micro inflator pump and a mounting plate for fixing the micro air pump.

The utility model discloses further set up to: the piston cylinders are arranged on two sides of the bottom of the pull rod seat in a bilateral symmetry mode.

To sum up, the utility model discloses following beneficial effect has: the utility model relates to a pull rod assembly controls the interior gas capacity of a piston section of thick bamboo respectively through setting up miniature pump and miniature aspiration pump to realize that the piston slides about doing at the piston intracavity, and then realize drawing and take the pull rod to make lifting and decline, reach automatic rising's effect, convenient to use, whole function is perfect, and the practicality is strong.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of a part of the structure of the present invention.

Detailed Description

In order to better understand the technical solutions of the present invention for those skilled in the art, the following preferred embodiments of the present invention are described in conjunction with the specific examples, but it should be understood that these descriptions are only for the purpose of further explaining the features and advantages of the present invention, and are not intended to limit the patent requirements of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The invention will be further described with reference to the accompanying drawings and preferred embodiments.

Example 1

Referring to fig. 1, the pull rod assembly according to the present embodiment includes a pull rod base 1, a pull rod groove 2 is dug on the pull rod base 1, a pull rod 3 is disposed in the pull rod groove 2, a piston cylinder 4 fixed on the pull rod base 1 is disposed below the pull rod groove 2, the piston cylinder 4 has a piston cavity 5 extending vertically, the pull rod base 1 is provided with a pull rod 6 sliding vertically relative to the pull rod base, one end of the pull rod 6 is connected to the pull rod 3, the other end of the pull rod is provided with a piston 7 slidably connected to the piston cavity 5, the piston cylinder 4 is provided with an air inlet pipe 8 and an air outlet pipe 9 communicated with the piston cavity 5, the air inlet pipe 8 is connected to a micro inflator 10 through a pipe, the air outlet pipe 9 is connected to a micro air pump 11 through a pipe, the pull rod base 1 is provided with a power supply 12 for supplying power to the micro inflator 10 and the micro air pump 11, and the pull rod base 1 is further provided with a first switch 13, a, A second switch 14 for controlling the operation of the micro-pump 11.

Furthermore, a first one-way valve 22 which is communicated from the outside to the inside of the piston cavity 5 is connected in series with the air inlet pipe 8, and a second one-way valve 23 which is communicated from the inside to the outside of the piston cavity 5 is connected in series with the air outlet pipe 9.

Furthermore, a power supply 12, a micro inflator pump 10 and a mounting plate 24 fixed to the micro air pump 11 are arranged on the pull rod base 1. The mounting plate 24 is used for fixedly mounting the power supply 12, the micro inflator 10 and the micro air pump 11.

Preferably, the number of the piston cylinders 4 is two, and the piston cylinders 4 are arranged on two sides of the bottom of the pull rod seat 1 in a bilateral symmetry manner.

In this embodiment, first, the pull handle 3 is in a descending state (i.e. hidden in the pull handle groove 2), and when the pull rod 6 is required to carry the pull handle 3 to automatically lift, the first switch 13 can be pressed, so that the micro inflator pump 10 operates to inflate the piston cavity 5, and the piston 7 carries the pull rod 6 to move upwards to complete the lifting of the pull handle 3; when the pull rod 6 and the pull handle 3 need to descend automatically, the second switch 14 can be pressed, so that the micro air pump 11 operates to pump air to the piston cavity 5, the piston 7 and the pull rod 6 descend, and the descent of the pull handle 3 is completed.

Wherein, through the arrangement of the first one-way valve 22, the gas is prevented from leaking from the piston cavity 5 in a large amount when the inflation is stopped; wherein, through the setting of the second one-way valve 23, the gas leakage from the piston cavity 5 is avoided when the air suction is stopped.

Example 2

Referring to fig. 1 and 2, a drawbar assembly according to the present embodiment is further configured, based on embodiment 1, an upper protective pipe 15 sleeved on the pull rod 6, a middle protective pipe 16 sleeved on the upper protective pipe 15 and a lower protective pipe 17 sleeved on the middle protective pipe 16 are arranged in the pull handle groove 2, the top of the upper protective tube 15 is connected with the pull handle 3, the outer tube wall of the bottom is provided with a first limit ring 18, the bottom of the lower protective tube 17 is connected with the pull rod seat 1, the inner tube wall at the top is provided with a second limiting ring 19, the inner pipe wall of the middle protective pipe 16 is provided with a third limiting ring 20 close to the top, the third limiting ring 20 is sleeved on the upper protective pipe 15 and limits the first limiting ring 18 to move upwards, the outer pipe wall of the middle protective pipe 16 is provided with a fourth limiting ring 21 close to the bottom, and the second limiting ring 19 is sleeved on the middle protective pipe 16 and limits the fourth limiting ring 21 to move upwards.

In this embodiment, the upper protection tube 15, the middle protection tube 16, and the lower protection tube 17 are respectively sleeved with each other, and when the upper protection tube 15 moves upward until the first limiting ring 18 abuts against the third limiting ring 20, the middle protection tube 16 is carried to move upward continuously until the middle protection tube 16 moves upward until the fourth limiting ring 21 abuts against the second limiting ring 19, and then the pull rod 6 is in a completely lifted state, and the outer wall of the pull rod 6 is shielded by each protection tube, thereby playing a role in protection.

The utility model relates to a pull rod assembly controls the interior gas capacity of a piston section of thick bamboo respectively through setting up miniature pump and miniature aspiration pump to realize that the piston slides about doing at the piston intracavity, and then realize drawing and take the pull rod to make lifting and decline, reach automatic rising's effect, convenient to use, whole function is perfect, and the practicality is strong.

Unless otherwise specified, in the present invention, if the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate an orientation or positional relationship based on the actual orientation or positional relationship shown, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are used for illustrative purposes only, and should not be construed as limiting the present patent, it is possible for those skilled in the art to combine the embodiments and understand the specific meanings of the above terms according to specific situations.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass both fixed and removable connections, or integral connections; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides a pull rod assembly, includes the pull rod seat, has dug the pull handle groove on the pull rod seat, and the pull handle inslot is equipped with pull handle, its characterized in that: the air pump is characterized in that a piston barrel fixed on a pull rod seat is arranged below the pull rod groove, the piston barrel is provided with a piston cavity which vertically extends, a pull rod which slides up and down relative to the pull rod seat is arranged on the pull rod seat, one end of the pull rod is connected with the pull rod, the other end of the pull rod is provided with a piston connected in the piston cavity in a sliding manner, an air inlet pipe and an air outlet pipe which are communicated with the piston cavity are arranged on the piston barrel, a miniature inflator pump is connected to the air inlet pipe through a pipeline, the air outlet pipe is connected with the miniature ejector pump through a pipeline, a power supply which supplies power to the miniature inflator pump and the miniature ejector pump is arranged on the pull rod seat, and a first switch which is electrically connected with the power supply and is.

2. The handle assembly of claim 1, wherein: the pull handle groove is internally provided with an upper protective pipe sleeved on the pull rod, a middle protective pipe sleeved on the upper protective pipe and a lower protective pipe sleeved on the middle protective pipe, the top of the upper protective pipe is connected with the pull handle, the outer pipe wall of the bottom of the upper protective pipe is provided with a first limiting ring, the bottom of the lower protective pipe is connected with the pull rod seat, the inner pipe wall of the top of the lower protective pipe is provided with a second limiting ring, the inner pipe wall of the middle protective pipe is provided with a third limiting ring close to the top, the third limiting ring is sleeved on the upper protective pipe and limits the first limiting ring to go upwards, the outer pipe wall of the middle protective pipe is provided with a fourth limiting ring close to the bottom, and the second limiting ring is sleeved on the middle protective pipe and limits the fourth limiting ring to.

3. The handle assembly of claim 1 or 2, wherein: the air inlet pipe is connected with a first one-way valve communicated from the outside to the piston cavity in series, and the air outlet pipe is connected with a second one-way valve communicated from the piston cavity to the outside in series.

4. The handle assembly of claim 3, wherein: and the pull rod seat is provided with a power supply, a micro inflator pump and a mounting plate for fixing the micro air pump.

5. The handle assembly of claim 1, wherein: the piston cylinders are arranged on two sides of the bottom of the pull rod seat in a bilateral symmetry mode.