CN217694861U

CN217694861U - Traction apparatus

Info

Publication number: CN217694861U
Application number: CN202220508280.7U
Authority: CN
Inventors: 薛元潮; 虞晓春; 李娜; 张丽
Original assignee: Hangzhou Hongwang Pet Products Co ltd
Current assignee: Hangzhou Hongwang Pet Products Co ltd
Priority date: 2022-03-10
Filing date: 2022-03-10
Publication date: 2022-11-01
Anticipated expiration: 2032-03-10

Abstract

The utility model discloses a tractor, which comprises a shell and a rotary disc accommodated in the shell, wherein the shell is also provided with a locking mechanism for locking the rotary disc, the locking mechanism comprises a pressing plate rotationally connected with the shell, the pressing plate is connected with a locking pin, and the pressing plate can rotate between a locking position and a releasing position relative to the shell; when the locking position is adopted, the locking pin clamps the turntable, and when the locking pin is released, the locking pin is separated from the turntable; the button is rotatably connected to the pressing plate, and when the pressing plate is located at the locking position, the button can rotate between the limiting position and the free position relative to the shell; the rotating direction of the pressing plate from the locking position to the releasing position is consistent with the rotating direction of the button from the free position to the limiting position, and the rotating friction between the pressing plate and the shell is smaller than that between the button and the pressing plate. The utility model discloses have dual fail-safe, keep pressing the locking position of board through the button structure, it is more convenient to use, and the stability of carousel braking is higher, and safer.

Description

Traction apparatus

Technical Field

The utility model relates to a pet articles for use technical field especially relates to tractor that pet was used.

Background

To prevent pets from wandering, owners often equip the pet with a retractor. At present, the pet retractors available on the market have various structural forms, and generally comprise a housing, a rotating disc arranged in the housing, a traction rope wound on the rotating disc, and a rotating disc braking mechanism.

The existing turntable brake mechanism needs to press the control end all the time when the turntable brake is locked so as to ensure continuous braking, is inconvenient to use, and is easy to damage due to the impact on the related control end structure caused by the pulling of a pet on a traction rope.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a tractor with small force application, stable braking and convenient use.

In order to realize the purpose, the utility model adopts the following technical scheme:

the tractor comprises a shell and a rotary disc accommodated in the shell, wherein the shell is also provided with a locking mechanism for locking the rotary disc, the locking mechanism comprises a pressing plate which is rotationally connected with the shell, the pressing plate is connected with a locking pin, and the pressing plate can rotate between a locking position and a releasing position relative to the shell;

when the locking position is adopted, the locking pin clamps the turntable, and when the locking pin is released, the locking pin is separated from the turntable;

the button is rotatably connected to the pressing plate, and when the pressing plate is located at the locking position, the button can rotate between the limiting position and the free position relative to the shell;

when the button is in the limiting position, the movement of the pressing plate relative to the shell is limited, and the movement of the button relative to the shell is not limited;

the rotating direction of the pressing plate from the locking position to the releasing position is consistent with the rotating direction of the button from the free position to the limiting position, and the rotating friction between the pressing plate and the shell is smaller than that between the button and the pressing plate.

Preferably, the button is pivotally connected to the button plate and is restrained relative to the button plate when the button plate is in the release position.

Preferably, the pressing plate is provided with a connecting end and a movable end, the connecting end is rotatably connected to the shell through a shaft, and the button is far away from the connecting end for installation.

Preferably, a spring is mounted in contact between the movable end of the pressing plate and the housing, and the elastic force of the spring provides a driving force for switching the pressing plate from the locking position to the releasing position.

Preferably, the end part of the movable end of the pressing plate, which is far away from the connecting end, is provided with an extension block, the extension block is positioned in the shell, and when the pressing plate is in a loosening position, the contact between the extension block and the shell is limited.

Preferably, the peripheral side of the rotary disk is provided with a rotatable convex tooth, and when the pressing plate is in the locking position, the locking pin enters the rotating path of the convex tooth to block the rotation of the convex tooth.

Preferably, the housing is provided with a guide rail for guiding the locking pin into a path of rotation of the convex teeth.

Preferably, the button has an operation end and an execution end, and the operation end is led out of the press plate and the housing.

Preferably, the execution end is embedded into the shell, a limiting groove is formed in the execution end, a limiting column is embedded into the limiting groove and fixed on the shell, a limiting area is arranged at the tail end of the limiting groove, and when the limiting column is located in the limiting area, the pressing plate is limited in movement relative to the shell.

Preferably, the push plate is received in a mounting slot in the housing and the button is located adjacent a handle portion provided on the housing.

Has the advantages that: compared with the traditional tractor structure, the utility model has double insurance, wherein the rotary disc is braked by the locking pin under the execution of the press plate, and simultaneously, the press plate is limited by the button structure of the press plate, thereby, when in the locking position, the manual continuous force application is not needed, the locking position of the press plate can be kept by the button structure, the use is more convenient, the stability of the rotary disc brake is higher, and the rotary disc brake is safer;

further, the utility model discloses a two arresting members, the button is the same with the direction of rotation that presses the board to button itself just sets up on pressing the board, in the design, presses the rotational friction of board and casing to be less than the button and the rotational friction who presses the board, so in use, only need press the button can, because the friction of pressing board and casing is little at the initial stage, so press the board can rotate in advance and block the carousel, continuously press the button this moment, the button then carries out the rotation lock and dies the board.

Drawings

FIG. 1 is a schematic view of the release position of the pressing plate in the retractor of the present invention;

fig. 2 is a schematic view of the structure of the locking position of the pressing plate in the retractor of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, the retractor comprises a housing and a rotating disc 3 accommodated in the housing, wherein a locking mechanism for locking the rotating disc 3 is further arranged on the housing;

referring to the figure, the housing comprises a handle portion 1 and a cord winding portion 2, a turntable 3 is located in the cord winding portion, and a locking mechanism is close to the handle portion 1, so that one-hand-held operation is facilitated.

The locking mechanism comprises a pressing plate 4 movably connected with the shell, the pressing plate 4 is connected with a locking pin 12, and the pressing plate 4 can move between a locking position and a releasing position relative to the shell;

as shown in fig. 2, in the locking position, the locking pin 12 catches the turntable 3; in the release position, shown in figure 1, the blocking pin 12 is disengaged from the dial 3;

the button is arranged on the pressing plate 4, and when the pressing plate 4 is located at the locking position, the button can move between the limiting position and the free position relative to the shell;

when in the limiting position as shown in fig. 2, the movement of the pressing plate 4 relative to the housing is limited; as shown in fig. 1, the movement of the pressing plate 4 with respect to the housing is not limited.

In summary, in the embodiment, the rotary disk 3 is braked by the locking pin 12 through the operation of the press plate 4, and the press plate 4 is kept at the locking position through the adjustment of the push button, so that the brake of the rotary disk 3 by the locking pin 12 is kept, and the continuous force application is not needed in the operation process, so that the use is more convenient.

In particular, the connection structure of the pressing plate 4, shown in the figures, has a connecting end, which is rotatably connected to the casing via a shaft 5, and a movable end, at which the push-button is mounted, which is close to the handle portion 1. A spring 11 is arranged between the movable end and the shell, one stressed end of the spring 11 is in contact with the bottom of the press plate, the other stressed end of the spring 11 is in contact with the shell, and a step is led out from the side wall of the shell and used for installing the spring. When the pressing plate 4 is in the loosening position, the spring is in a loosening state, and when the pressing plate is in the locking position, the spring is in a pressing state so as to be reset. In addition, the end of the movable end of the pressing plate is provided with an extension block 8, the extension block 8 is positioned in the shell, when the pressing plate is in a release position, the contact between the extension block 8 and the inner edge wall of the mounting groove is limited, and referring to fig. 1, the extension block 8 is used for preventing the pressing plate 4 from being ejected out of the shell under the action of a spring.

Referring to fig. 1 and 2, the push button is rotatably connected to the pressing plate 4, and when the pressing plate 4 is in the release position, a rotation path of the push button in at least one direction with respect to the pressing plate 4 is limited, and when the pressing plate 4 is in the lock position, the push button has a rotation path in at least one direction with respect to the pressing plate 4, and the limit position of the push button is set on the rotation path; in the reference figure, the top of the button is provided with an operation end 7, the bottom of the operation end 7 is provided with an execution end 9, and the operation end 7 is led out of the upper surface of the pressing plate, so that the handheld operation is facilitated. The execution end 9 is embedded into the shell, a limiting groove is formed in the execution end, a limiting column 6 is embedded into the limiting groove, the limiting column 6 is fixed on the shell, a limiting area is arranged at the tail end of the limiting groove, and when the limiting column 6 is located in the limiting area, the pressing plate 4 is limited relative to the shell in movement. As shown in the figure, the limiting groove is of an L-shaped structure, the L-shaped limiting groove is provided with a straight line section and a corner section, and the corner section is a limiting area. Referring initially to FIG. 1, when the push plate 4 is in the released condition, the button is in the free position as shown, where movement of the button relative to the housing is coordinated with the push plate 4. The guide post 6 is located in a straight line segment, and the extending direction of the straight line segment coincides with the movable direction of the pressing plate 4. When the button plate 4 moves relative to the housing, the button also moves with the button plate in the path of the retaining groove. With the movement of the push button, the push plate 4 is also in the locking position when the guide post 6 is at the end of the straight section (the junction of the straight section and the corner section). Referring to fig. 2, when the push button operation end 7 is rotated, the guide post 6 is pushed into the corner section (i.e., the state shown in fig. 2), and in this state, the push plate 4 and the push button cannot move along the original path with respect to the housing, and the push plate 4 is held at the current lock position with respect to the housing.

Referring again to fig. 1 and 2, the locking principle of the locking pin 12 is: the rotary disk 3 is located at the bottom of the pressing plate, the peripheral side of the rotary disk 3 is provided with a convex tooth 31, and when the pressing plate 4 is in the locking position, the locking pin 12 enters the rotating path of the convex tooth 31.

As shown, the locking pin 12 is mounted on the bottom of the push plate 4, and the housing is provided with a guide rail 10 for guiding the locking pin 12 into a path of rotation of the convex teeth. Since the push plate 4 is rotated in a swinging manner along the shaft 5, the locking pin 12 is disposed at an inclination as shown in the figure, whereby the locking pin 12 can be inserted between the convex teeth 31 of the turntable 3 in a radial direction, causing a blocking brake thereto (refer to fig. 1 and 2). It is worth mentioning that in the braking state (fig. 2), the movement path of the locking pin 12 is perpendicular to the movement path of the convex tooth 31, and the button causes self-locking to the pressing plate 4, so that even if the pet pulls the button, accidental unlocking can be caused, and the locking pin 12 is vertically contacted with the convex tooth 31, so that great abrasion can not be caused, and the service life is longer.

It should be mentioned that, in the design, the rotation friction between the pressing plate 4 and the casing is smaller than that between the button and the pressing plate, so that in use, only the button needs to be pressed, and at the initial stage, because the friction between the pressing plate 4 and the casing is small, the pressing plate 4 rotates to clamp the rotating disc 3 in advance, and at the moment, the button is continuously pressed, and the button rotates to lock the pressing plate 4.

The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims

1. The tractor is characterized by comprising a shell and a rotary disc accommodated in the shell, wherein the shell is also provided with a locking mechanism for locking the rotary disc, the locking mechanism comprises a pressing plate which is rotationally connected with the shell, the pressing plate is connected with a locking pin, and the pressing plate can rotate between a locking position and a releasing position relative to the shell;

2. The retractor of claim 1, wherein the button is pivotally attached to the push plate such that the button is restrained relative to the push plate when the push plate is in the release position.

3. The retractor of claim 1, wherein the push plate has a connecting end pivotally connected to the housing via a shaft and a movable end, the push button being mounted remotely from the connecting end.

4. The retractor of claim 3, wherein a spring is mounted in abutment between the movable end of the push plate and the housing, the spring force of the spring providing the urging force for the push plate to move from the locked position to the unlocked position.

5. The retractor of claim 4, wherein the movable end of the trigger plate is provided with an extension block at an end thereof remote from the attachment end, the extension block being disposed within the housing, the extension block being restrained from contacting the housing when the trigger plate is in the release position.

6. The retractor of claim 1, wherein the rotatable disk is provided with a peripheral side with a rotatable tooth, and wherein the locking pin is disposed in a rotational path of the tooth to block rotation of the tooth when the push plate is in the locked position.

7. The retractor of claim 6, wherein the housing includes a guide track for guiding the locking pin into the path of rotation of the lobe.

8. The retractor of claim 1, wherein the button has an operating end and an actuating end, the operating end exiting the push plate and the housing.

9. The retractor of claim 8, wherein the actuating end is inserted into the housing and has a retaining groove formed thereon, a retaining post being inserted into the retaining groove and fixed to the housing, and a retaining area being formed at an end of the retaining groove, wherein when the retaining post is located in the retaining area, movement of the pressing plate relative to the housing is retained.

10. The retractor of claim 1, wherein the push plate is received in a mounting slot in the housing and the push button is located adjacent a handle portion provided on the housing.