CN214339371U

CN214339371U - Dog leash retracting device with single hand

Info

Publication number: CN214339371U
Application number: CN202023112416.2U
Authority: CN
Inventors: 谢成豪; 陈超峰
Original assignee: Dalian University of Technology
Current assignee: Dalian University of Technology
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-10-08
Anticipated expiration: 2030-12-22

Abstract

The utility model provides a dog leash is received to one hand relates to dog leash technical field, which comprises a housin, the casing comprises inferior valve and the epitheca that corresponds with the inferior valve, inferior valve and epitheca constitute hollow accommodating structure, be provided with the ratchet in the hollow accommodating structure, the epaxial winding of ratchet has the dog leash and is equipped with a roll spring in axle center department, the ratchet top is equipped with link mechanism, be equipped with first pawl and second pawl on the link mechanism and mesh with the ratchet, link mechanism passes through the lever and links to each other with grab handle one end, the grab handle other end links to each other with the grab handle spring, the grab handle spring other end is fixed in inside the casing. The utility model discloses a ratchet pawl structure realizes the one-way function of tightening up dog rope and auto-lock dog rope.

Description

Dog leash retracting device with single hand

Technical Field

The utility model relates to a dog leash technical field especially relates to a dog leash is received to one hand.

Background

Modern fast rhythm life lets many people support pet dog and alleviates pressure and ease anxiety, but the pet dog often likes to run east and west and can't restrain and bring the vexation for the user when going out the dog of walking, especially strength little women user, if can't in time regain the action that the dog rope restricted the pet dog, will probably bring inconvenience and danger for dog owner or passerby. Therefore, people invented a dog leash.

The existing dog leash generally adopts a mode of rebounding and winding a rope by a coil spring, and also adopts an elastic rope or a belt as a dog rope to keep a certain traction force between a pet dog and the dog leash. However, when the dog leash is retracted, the existing dog leash pulling device needs a user to stop releasing the leash with one hand, and retract the dog leash with the other hand under the action of the elastic force of a spring, so that the existing dog leash pulling device needs to be operated with two hands, and is very inconvenient in some cases. On the other hand, the elasticity of the coil spring or the elastic rope is reduced along with the advance of time. In conclusion, the invention provides a dog leash which can be used by one hand and has high durability.

SUMMERY OF THE UTILITY MODEL

The utility model provides a dog leash is received to one hand's ware that leads has solved the problem that current dog leash needs both hands to use.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

the utility model provides a dog leash is received to one hand, includes the casing, the casing comprises inferior valve and the epitheca that corresponds with the inferior valve, inferior valve and epitheca constitute hollow structure of acceping, hollow structure of acceping is provided with the ratchet, the epaxial winding of ratchet has the dog rope and is equipped with a roll spring in axle center department, the ratchet top is equipped with link mechanism, link mechanism is last to be equipped with first pawl and second pawl and with the ratchet meshing, link mechanism passes through the lever and links to each other with grab handle one end, the grab handle other end links to each other with the grab handle spring, the grab handle spring other end is fixed in inside the casing.

Preferably, a first stop block is arranged on the outer side of the first pawl, and a first spring is arranged on the inner side of the first pawl; and a second spring is arranged on the outer side of the second pawl, and a second stop block is arranged on the inner side of the second pawl.

Preferably, a handle hole penetrating through the shell is vertically formed in the shell, and one side of the grab handle extends out of the shell in the handle hole.

Preferably, a switching spring is arranged between the first pawl and the second pawl, and the switching spring is connected with a switching button extending out of the shell.

Preferably, a rope outlet is formed in the side face of the shell and used for enabling the dog rope to pass through.

Preferably, the ratchet wheel outside is equipped with first gyro wheel, it is equipped with the second gyro wheel to go out the rope mouth inboard, the dog rope is stretched out from a rope mouth by the first gyro wheel of ratchet shaft through, second gyro wheel.

Preferably, the housing interior is provided with a first column and a second column for defining a first detent position, and the housing interior is provided with a third column and a fourth column for defining a second detent position.

Preferably, the first and second pawls act as a ratchet having a circumferential diameter greater than the diameter of the dog leash wound around the ratchet shaft.

The beneficial effects of the utility model reside in that:

1. the utility model adopts a ratchet wheel and pawl structure to realize the functions of one-way tightening dog rope and self-locking dog rope;

2. The utility model discloses the circumference diameter of first pawl and second pawl effect ratchet is greater than the diameter of dog rope winding ratchet axle, thereby reaches laborsaving purpose according to the moment balance theorem.

Drawings

In order to clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an internal structure diagram of the present invention.

Fig. 2 is a perspective view of the present invention.

Fig. 3 is a front view of the present invention.

Fig. 4 is a structural view of the ratchet pawl of the present invention.

The reference numbers illustrate:

1. a housing; 2. a ratchet wheel; 3. a dog leash; 4. a coil spring; 5. a link mechanism; 6. a first pawl; 7. a second pawl; 8. a lever; 9. a handle; 10. a handle spring; 11. a first stopper; 12. a first spring; 13. a second spring; 14. a second stopper; 15. a handle aperture; 16. a switching spring; 17. a switch button; 18. a rope outlet; 19. a first roller; 20. a second roller; 21. column one; 22. column II; 23. column III; column No. 24 four.

Detailed Description

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

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below 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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. 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.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element in question must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The utility model provides a technical scheme: a dog leash capable of being collected by one hand is structurally shown in figures 1-4 and comprises a shell 1, wherein the shell 1 is composed of a lower shell and an upper shell corresponding to the lower shell, the lower shell and the upper shell form a hollow containing structure, a ratchet 2 is arranged in the hollow containing structure, a dog leash 3 is wound on a shaft of the ratchet 2, a winding spring 4 is arranged at the center of the shaft, and the dog leash 3 can be collected by the winding spring 4 in a counter-clockwise mode. The side of the shell 1 is provided with a rope outlet 18 for the dog rope 3 to pass through, the outer side of the ratchet wheel 2 is provided with a first roller wheel 19, the inner side of the rope outlet 18 is provided with a second roller wheel 20, the dog rope 3 passes through the first roller wheel 19 by the shaft of the ratchet wheel 2, and the second roller wheel 20 extends out of the rope outlet 18. A link mechanism 5 is arranged above the ratchet wheel 2, a first pawl 6 and a second pawl 7 are fixed on the link mechanism 5 and are meshed with the ratchet wheel 2, a switching spring 16 is arranged between the first pawl 6 and the second pawl 7, and the switching spring 16 is connected with a switching button 17 extending out of the shell 1. A first stop block 11 is arranged on the outer side of the first pawl 6, and a first spring 12 is arranged on the inner side; the second spring 13 is arranged on the outer side of the second pawl 7, and the second stop 14 is arranged on the inner side.

When the first pawl 6 engages the ratchet 2, the first spring 12 presses the first pawl 6 tightly against the ratchet teeth of the ratchet 2. The position of the second pawl 7 is limited by the second stopper 14 and the second spring 13. Similarly, when the second pawl 7 engages the ratchet 2, the second spring 13 will press the second pawl 7 tightly against the ratchet teeth of the ratchet 2. A first column 21 and a second column 22 for limiting the position of a first pawl 6 are arranged in the shell 1, a third column 23 and a fourth column 24 for limiting the position of a second pawl 7 are arranged in the shell 1, the circumferential diameter of the ratchet 2 acted by the first pawl 6 and the second pawl 7 is larger than the diameter of the dog rope 3 wound around the shaft of the ratchet 2, and the force acted on the ratchet 2 by the pawls is smaller than the outward pulling force of the dog rope 3 according to the moment balance theorem, so that the aim of saving labor is fulfilled. The link mechanism 5 is connected with one end of a grab handle 9 through a lever 8, the other end of the grab handle 9 is connected with a grab handle spring 10, the other end of the grab handle spring 10 is fixed inside the shell 1, a handle hole 15 penetrating through the shell 1 is vertically arranged on the shell 1, and one side of the grab handle 9 extends out of the shell 1 in the handle hole 15.

The utility model discloses when packing up dog rope 3, hold between the fingers down grab handle 9 after, under the effect of lever 8, link mechanism 5 can make first pawl 6, second pawl 7 move the angle of a ratchet on ratchet 2. The grip 9 then returns to its original position under the action of the grip spring 10. Continued depression of the grip 9 allows intermittent counterclockwise motion of the double pawl ratchet to tighten the dog leash 3. One pawl prevents rotation and one pawl pushes the ratchet.

The utility model discloses a when auto-lock state was for releasing grab handle 9, first pawl 6, second pawl and link mechanism 5 were the locking state, and ratchet 2 does not rotate, and dog rope 3 is tight.

The utility model discloses when releasing dog rope 3, press down the switching button 17 behind the lower cover and can promote link mechanism 5 and drive first pawl 6, second pawl 7 and break away from the meshing of ratchet 2 and be pushed to the upper cover. At this time, the ratchet wheel 2 is only acted by the anticlockwise rotation of the coil spring 4 and the pulling force of the dog leash 3, and the state is equivalent to the loosening state of the dog leash 3.

The utility model discloses when tightening up the dog rope after releasing the dog rope, the position that the upper cover corresponds first pawl 6 has a post 21 and No. two posts 22, and these two columellas can let first pawl 6 basically to its position at the ratchet, promptly between two ratchets of ratchet 2. The function of column three 23 and column four 24 is the same. The purpose of these four posts is to prevent the first 6 and second 7 pawls from moving too far out of position during reset. To allow dog leash 3 to be tightened again, switch button 17 is released and linkage 5 is pushed back into place under the action of switch spring 16. If the first pawl 6 and the second pawl 7 interfere with the ratchets of the pawl 2, the dog rope 3 is pulled to rotate the ratchet 2 for a certain angle, so that the first pawl 6 and the second pawl 7 can be restored to be meshed with the ratchet 2.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. The utility model provides a dog leash ware that leads of rope is received to one hand which characterized in that: including casing (1), casing (1) comprises inferior valve and the epitheca that corresponds with the inferior valve, inferior valve and epitheca constitute hollow structure of acceping, be provided with ratchet (2) in the hollow structure of acceping, ratchet (2) epaxial winding have dog rope (3) and locate to be equipped with at the axle center and roll up spring (4), ratchet (2) top is equipped with link mechanism (5), be equipped with first pawl (6) and second pawl (7) on link mechanism (5), first pawl (6) and second pawl (7) mesh with ratchet (2), link mechanism (5) link to each other with grab handle (9) one end through lever (8), grab handle (9) other end links to each other with grab handle spring (10), grab handle spring (10) other end is fixed in inside casing (1).

2. The single-handed leash retractor of claim 1, wherein: a first stop block (11) is arranged on the outer side of the first pawl (6), and a first spring (12) is arranged on the inner side of the first pawl; and a second spring (13) is arranged on the outer side of the second pawl (7), and a second stop block (14) is arranged on the inner side.

3. The single-handed leash retractor of claim 1, wherein: the handle is characterized in that a handle hole (15) penetrating through the shell (1) is vertically formed in the shell (1), and one side of the grab handle (9) extends out of the shell (1) in the handle hole (15).

4. The single-handed leash retractor of claim 1, wherein: a switching spring (16) is arranged between the first pawl (6) and the second pawl (7), and the switching spring (16) is connected with a switching button (17) extending out of the shell (1).

5. The single-handed leash retractor of claim 1, wherein: the side surface of the shell (1) is provided with a rope outlet (18) for the dog rope (3) to pass through.

6. The single-handed leash retractor of claim 5, wherein: ratchet (2) outside is equipped with first gyro wheel (19), go out rope mouth (18) inboard is equipped with second gyro wheel (20), dog rope (3) are stretched out from going out rope mouth (18) by ratchet (2) axle through first gyro wheel (19), second gyro wheel (20).

7. The single-handed leash retractor of claim 1, wherein: a first column (21) and a second column (22) for limiting the position of the first pawl (6) are arranged inside the shell (1), and a third column (23) and a fourth column (24) for limiting the position of the second pawl (7) are arranged inside the shell (1).

8. The single-handed leash retractor of claim 1, wherein: the circumferential diameter of the ratchet wheel (2) acted by the first pawl (6) and the second pawl (7) is larger than the diameter of the dog rope (3) wound around the shaft of the ratchet wheel (2).