CN113387242A

CN113387242A - Pet pulling rope

Info

Publication number: CN113387242A
Application number: CN202110852642.4A
Authority: CN
Inventors: 万大霞
Original assignee: Shaoxing Heou Leisure Article Co ltd
Current assignee: Shaoxing Heou Leisure Article Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2021-09-14

Abstract

The invention discloses a pet leash, which comprises a shell forming a hollow annular channel, wherein a leash outlet is arranged on the shell, a leash winding ring is arranged in the annular channel, a leash is wound on the periphery of the leash winding ring, a braking mechanism and a leash collecting mechanism are arranged on the shell, a first gear ring and a second gear ring extending towards a rotation center are respectively arranged on two end faces of the leash winding ring, a guide support is arranged in the shell, the periphery of the guide support is in threaded fit with the leash winding ring, a screw hole is formed in the guide support, a screw rod is in threaded fit with the screw hole, a first gear is arranged on the screw rod and is meshed with the first gear ring, the leash collecting mechanism comprises a plurality of groups of second gears and coil springs which are overlapped, the inner ends of the coil springs are fixed on a positioning shaft, the outer ends of the coil springs are fixed on inner rings of the second gears, and one of the second gears is meshed with the second gear ring. The pull rope can prolong the length of the rope on the premise of not increasing the overall size of the pull rope, and the pull force of the rope winding mechanism to the rope is more uniform in the rope winding and unwinding process.

Description

Pet pulling rope

Technical Field

The invention belongs to the technical field of pet hauling ropes, in particular to a pet hauling rope, and particularly relates to a pet hauling rope capable of automatically retracting the rope.

Background

With the increasing living standard of people, more and more families choose pets as family members of daily companions and playmates which are enjoyed at leisure. Because some pets have certain aggressiveness, more and more cities require that the pets are pulled by owners through the pulling ropes when going out, and the pulling of the pulling ropes can control the moving range of the pets and prevent the pets from being lost. The existing pet leash generally comprises an automatic rolling function and a locking function at a certain leash outlet length, for example, CN101518211 discloses a leash assembly capable of stretching and locking, which comprises: a hollow annular lead housing; a spool located within the hollow annular lead housing and extending through the circumference of the hollow annular lead housing; a length of rope having one end connected to the spool inside the hollow annular draft gear housing and extending from a rope opening provided on the surface of the hollow annular draft gear housing and the other end outside the hollow annular draft gear housing; a retraction device within the hollow annular lead housing, the retraction device exerting a force to retract the cord around the spool into the hollow annular lead housing; and a brake trigger accessible by a user, said trigger having at least one braking position and a free position; and a portion of the hollow annular leash housing distal from the leash opening and retraction means forms a handle, wherein the retraction means comprises a pair of leash housing halves and. The handle portion of the device is provided with a pair of rubber or rubber-like soft gripping halves. The second gear housing is integrally formed with the belt housing halves and defines a generally cylindrical space having a spring shaft. The spur second gear has an outer second gear rim and a central opening on a shaft that fits within the second gear housing. A coil spring is mounted in the positive second gear, and a coil spring cover is assembled with and receives the coil spring in the positive second gear. When the positive second gear rotates around the shaft and applies a recoil torque, the coil spring elastically deforms to restore the positive second gear to the original direction. The entire retraction device is assembled together by six screws. This kind of pet haulage rope includes the automatic rolling function and at the locking function of certain play rope length, but because the space in the annular tractive belt casing is limited, the space of wind spring installation receives the restriction, and the wind spring volume is limited, and it is limited to lead to the number of turns that the wind spring can rotate the energy storage along with the second gear, and the number of turns of rotation of spool receives the restriction, only can rotate several rings, consequently leads to the restriction that the length of rope received, and the rope can not the overlength. The length of rope just can be prolonged to the size that must enlarge whole area tractive subassembly, this weight and the volume that leads to whole area tractive subassembly are showing and is increasing, and it is inconvenient to use, and the moment of exporting by the coil spring when tightening is big moreover, and when being close relaxing entirely, the moment of export can reduce a lot, leads to the coil spring to the pulling force of rope inhomogeneous, and required pulling force is too big when the afterbody will pull out the rope.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the pet hauling rope which can prolong the length of the rope on the premise of not increasing the overall size of the hauling rope and ensure that the pulling force of the rope collecting mechanism on the rope is more uniform in the process of collecting and releasing the rope.

In order to solve the technical problem, the invention is solved by the following technical scheme: the pet leash comprises a shell forming a hollow annular channel, a leash outlet is formed in the shell, a leash winding ring is arranged in the annular channel, a leash is wound on the periphery of the leash winding ring, one end of the leash is connected to the leash winding ring, the other end of the leash extends out of the leash outlet, a braking mechanism and a leash collecting mechanism are arranged on the shell, a first tooth ring and a second tooth ring extending towards a rotation center are respectively arranged on two end faces of the leash winding ring, a guide support is arranged in the shell, the periphery of the guide support is in threaded fit with the leash winding ring, a screw hole is formed in the guide support, a screw is in threaded fit with the screw, a first gear is arranged on the screw and is meshed with the first tooth ring, the leash collecting mechanism comprises a plurality of groups of overlapped second gears and coil springs, and the inner ends of the coil springs are fixed on a positioning shaft, the outer end of the second gear is fixed to the inner ring of the second gear, one of the second gears is meshed with the second gear, when the rope winding ring rotates along the rope outlet direction, the rope winding ring is matched with the guide support to move towards the direction of the second gear, the first gear ring is matched with the first gear to screw the screw rod into the screw hole at the same moving speed as the rope winding ring, when the second gear ring is separated from the second gear on the front side, the second gear ring is meshed with the second gear on the adjacent rear side, and the screw rod is inserted between the gear teeth of the second gear on the front side or in the limiting hole to limit the second gear on the front side; when the rope winding ring rotates along the rope winding direction, the rope winding ring and the guide support are matched to move back to the second gear, the first gear ring and the first gear are matched to screw the screw out of the screw hole at the same moving speed as the rope winding ring, and when the screw is separated from the space between the gear teeth of the second gear or the limiting hole, the second gear ring is meshed with the second gear. The pet leash is provided with a plurality of second gears and coil springs, a rope winding ring can be matched with a guide support to move transversely in the process of rope outlet, can be respectively meshed with the second gears in the process of transverse movement, the second gears are limited by a screw rod when the second gears on the front side are disengaged to keep the elastic potential energy of the coil springs in the rope winding ring, the coil springs in the rope winding ring are meshed through the second gears to store the elastic potential energy, the rope winding ring can rotate for more circles on the premise of not increasing the outer diameters of the second gears and the coil springs, so that the length of the rope can be prolonged on the premise of not increasing the whole size of the leash, the rope winding ring can be simultaneously meshed with two adjacent second gears in a period of transverse movement, one potential energy of the two second gears is larger, the potential energy is smaller, and the second gear on the front side has certain elastic potential energy when the second gear on the rear side is disengaged, the tension of the rope is kept to float in a small range all the time, and the tension of the rope winding mechanism to the rope is more uniform in the rope winding and unwinding process.

Among the above-mentioned technical scheme, preferred, the casing is formed by first casing and second casing through the snap-fit amalgamation. Adopt this structure to make things convenient for the equipment of this pet haulage rope.

In the above technical solution, preferably, the guide bracket is fixed to the first housing by a screw.

In the above technical solution, preferably, the first housing and the second housing are spliced, and a rope retracting mechanism accommodating portion for accommodating and limiting the rope retracting mechanism is formed between the second housing and the guide bracket. By adopting the structure, the second gear can be prevented from shifting to be disengaged from the rope winding ring or being disengaged from the screw rod for limiting, and the elastic potential energy of the internal coil spring can be released accidentally.

In the above technical solution, preferably, the positioning shaft is arranged in the accommodating part of the rope winding mechanism, and the positioning shaft is fixed on the guide bracket.

In the above technical solution, preferably, the second gear and the rope winding ring are integrally formed, and the first gear ring is fixedly connected to the rope winding ring through a screw. Adopt this structure to make things convenient for the equipment of this pet haulage rope, when the installation, at first the first ring gear of packing into in first casing, then pack screw rod and guide holder and pass through screw fixed mounting with guide holder and first casing, later with the rope winding ring guide holder of screwing in again, pass through screw fixed mounting with first ring gear and rope winding ring again, later the spring of coiling and second gear of packing into, pass through the buckle lock with second casing and first casing again.

In the above technical solution, preferably, a plurality of spacers for adjusting the position and the distance of the second gear are disposed between the adjacent second gears and/or on the outer sides of the second gears at both ends. Through setting up the interval that the gasket can be convenient between the adjacent second gear of regulation and the position of the relative wire winding ring of second gear to convenient regulation when meshing with rear side second gear, the distance of front side second gear and the second ring gear meshing on the wire winding ring, thereby the size of controlling total elastic potential energy.

In the above technical solution, preferably, the spacer is sleeved on the positioning shaft. The structure is adopted to facilitate the positioning of the gasket.

In the above technical scheme, preferably, an opening is formed in the outer end face of the second gear on the housing, the brake mechanism includes a limiting arm, one end of the limiting arm is rotatably connected with the second gear on the outermost side, a limiting head is arranged at the other end of the limiting arm, an elastic telescopic mechanism is arranged on the limiting arm, a clamping groove for positioning the limiting head is formed in the housing, and the limiting head is clamped into the clamping groove to elastically limit the second gear on the outermost side. The braking mechanism can be started when the length of the released rope reaches the second gear on the outermost side and is meshed with the rope winding ring, the length of the rope released when a pet is stroked generally enables the second gear on the outermost side to be meshed with the rope winding ring, so that the use is not influenced, the strength of some large dogs is large, if the large dogs run suddenly, people can be easily pulled down by adopting a fixed braking mechanism, the fixed braking mechanism can be clamped into the clamping groove through the limiting head by adopting the structure, the second gear on the outermost side is elastically limited by the elasticity of the elastic telescopic mechanism on the limiting arm, when the large dogs run suddenly, the expansion of the elastic telescopic mechanism can play a role in buffering, the second gear on the outermost side can still overcome the elasticity of the elastic telescopic mechanism to rotate the released rope when the large tensile force is received, and the people are prevented from being pulled down.

In the above technical scheme, preferably, a central hole is formed in the housing, a support arm is arranged in the central hole, and a plurality of clamping grooves with different center distances from the second gear are arranged on the support arm. Adopt this structure can enough strengthen the intensity of whole casing, can be convenient again with spacing head card income draw-in groove on the spacing arm to through the size of the adjustable buffer power of draw-in groove that changes spacing head card income, the user can be according to the size of self strength, factors such as bodily form adjust the buffer power.

Compared with the prior art, the invention has the following beneficial effects: the pet leash is provided with a plurality of second gears and coil springs, a rope winding ring can be matched with a guide support to move transversely in the process of rope outlet, can be respectively meshed with the second gears in the process of transverse movement, the second gears are limited by a screw rod when the second gears on the front side are disengaged to keep the elastic potential energy of the coil springs in the rope winding ring, the coil springs in the rope winding ring are meshed through the second gears to store the elastic potential energy, the rope winding ring can rotate for more circles on the premise of not increasing the outer diameters of the second gears and the coil springs, so that the length of the rope can be prolonged on the premise of not increasing the whole size of the leash, the rope winding ring can be simultaneously meshed with two adjacent second gears in a period of transverse movement, one potential energy of the two second gears is larger, the potential energy is smaller, and the second gear on the front side has certain elastic potential energy when the second gear on the rear side is disengaged, the tension of the rope is kept to float in a small range all the time, and the tension of the rope winding mechanism to the rope is more uniform in the rope winding and unwinding process.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.

Fig. 2 is a schematic diagram of an internal structure according to an embodiment of the present invention.

Fig. 3 is an exploded schematic view of main parts in the embodiment of the present invention.

Fig. 4 is a schematic structural view of the first housing with the first ring gear and the guide bracket installed therein according to the embodiment of the present invention.

Fig. 5 is a schematic sectional structure diagram of the embodiment of the present invention during installation.

Detailed Description

The invention is described in further detail below with reference to the following detailed description and accompanying drawings: referring to fig. 1 to 5, the pet leash comprises a housing 100 forming a hollow annular channel 103, the housing 100 is provided with a leash outlet 104, the annular channel 103 is internally provided with a leash winding ring 1, a leash 2 is wound around the periphery of the leash winding ring 1, one end of the leash 2 is connected to the leash winding ring 1, the other end of the leash 2 extends out of the leash outlet 104, the housing 100 is provided with a braking mechanism 3 and a leash retracting mechanism 4, two end faces of the leash winding ring 1 are respectively provided with a first gear ring 11 and a second gear ring 12 extending towards a rotation center, the housing 100 is internally provided with a guide bracket 5, the periphery of the guide bracket 5 is in threaded fit with the leash winding ring 1, the guide bracket 5 is provided with a screw hole 51, the screw hole 51 is in threaded fit with a screw rod 52, the screw rod 52 is provided with a first gear 53, the first gear 53 is engaged with the first gear ring 11, the leash retracting mechanism 4 comprises three groups of second gears 41 and a coil spring 42, the inner ends of the coil springs are fixed on a positioning shaft 54, the outer end of the second gear 41 is fixed on the inner ring of the second gear 41, wherein a second gear 41 is meshed with a second gear ring 12, when the rope winding ring 1 rotates along the rope outlet direction, the rope winding ring 1 is matched with the guide bracket 5 to move towards the direction of the second gear 41, the first gear ring 11 is matched with the first gear 53 to screw the screw rod 52 into the screw hole 51 at the same moving speed as the rope winding ring 1, when the second gear ring 12 is separated from the second gear 41 on the front side, the second gear ring 12 is meshed with the adjacent second gear 41 on the rear side, and the screw rod 52 is inserted between the gear teeth of the second gear 41 on the front side or in the limiting hole to limit the second gear 41 on the front side; when the rope winding ring 1 rotates along the rope winding direction, the rope winding ring 1 and the guide bracket 5 are matched to move back to the second gear 41, the first gear ring 11 and the first gear 53 are matched to screw the screw rod 52 out of the screw hole 51 at the same moving speed as the rope winding ring 1, and when the screw rod 52 is separated from the gear teeth or the limiting hole of the second gear 41, the second gear ring 12 is meshed with the second gear 41. In this embodiment, the screw 52 is inserted between the teeth of the second gear 41 to limit the second gear 41, in other embodiments, a limit hole may be disposed in the axial direction of the second gear 41, the screw 52 is inserted into the limit hole to limit the second gear 41, the pet leash has a plurality of second gears 41 and coil springs 42, the leash winding ring 1 can cooperate with the guide bracket 5 to move laterally in the leash discharging process, and can be respectively engaged with each second gear 41 in the lateral moving process, and the screw 52 limits the second gear 41 to maintain the elastic potential energy of the coil spring 42 therein when the second gear 41 on the front side is disengaged, the plurality of coil springs 42 inside the leash winding ring store the elastic potential energy by the engagement of the plurality of second gears 41, the leash winding ring 1 can rotate more circles without increasing the outer diameters of the second gears 41 and the coil springs 42, so that the length of the leash can be extended without increasing the overall size of the leash, when the rope winding ring 1 moves transversely, the rope winding ring can be meshed with two adjacent second gears 41 at the same time for a while, one potential energy of the two second gears 41 is larger, and the other potential energy of the two second gears 41 is smaller, and when the second gear 41 at the front side is separated, the coil spring 42 in the second gear 41 at the rear side has certain elastic potential energy, so that the tension of the rope 2 always keeps floating within a smaller range, and the tension of the rope 2 by the rope winding mechanism 4 is more uniform in the rope winding and unwinding process.

In this embodiment, in order to facilitate the assembly of the traction rope, the housing 100 is formed by splicing the first housing 101 and the second housing 102 through a snap fit.

In this embodiment, in order to facilitate the assembly of the traction rope, the guide bracket 5 is fixed to the first housing 101 by screws.

In this embodiment, the first housing 101 and the second housing 102 are joined together, and a rope winding mechanism accommodating portion 105 for accommodating and limiting the rope winding mechanism 4 is formed between the second housing 102 and the guide bracket 5. With this structure, it is possible to prevent the second gear 41 from shifting to disengage from the rope winding ring 1, or from being disengaged from the screw 52 to accidentally release the elastic potential energy of the internal coil spring 42 thereof.

In this embodiment, the positioning shaft 54 is provided in the rope winding mechanism accommodating portion 105, and the positioning shaft 54 is fixed to the guide bracket 5.

In this embodiment, the second gear 41 and the rope winding ring 1 are integrally formed, and the first gear 11 is fixedly connected to the rope winding ring 1 by screws. When the structure is adopted, the pet pulling rope is convenient to assemble, when in installation, the first toothed ring 11 is firstly arranged in the first shell 101, then the screw rod 52 and the guide support 5 are arranged, the guide support 5 and the first shell 101 are fixedly installed through screws, then the rope winding ring 1 is screwed into the guide support 5, then the first toothed ring 11 and the rope winding ring 1 are fixedly installed through screws, then the coil spring 42 and the second gear 41 are arranged, and then the second shell 102 and the first shell 101 are buckled through a buckle.

In this embodiment, a plurality of spacers 43 for adjusting the position and the distance between the second gears 41 are disposed on the outer sides of the second gears 41 between and/or at both ends of the adjacent second gears 41. The distance between the adjacent second gears 41 and the position of the second gear 41 relative to the rope winding ring 1 can be conveniently adjusted by arranging the gasket 43, so that the distance between the front second gear 41 and the second gear ring 12 on the rope winding ring 1 when the front second gear 41 is meshed with the rear second gear 41 can be conveniently adjusted, and the total elastic potential energy can be controlled.

In this embodiment, in order to facilitate the positioning of the gasket 43, the gasket 43 is sleeved on the positioning shaft 54.

In this embodiment, an opening 106 is provided on the outer end surface of the second gear 41 on the housing 100, the braking mechanism 3 includes a limiting arm 31, one end of the limiting arm 31 is rotatably connected to the outermost second gear 41, a limiting head 33 is provided at the other end of the limiting arm 31, an elastic telescopic mechanism 32 is provided on the limiting arm 31, a slot 34 for positioning the limiting head 33 is provided on the housing 100, and the limiting head 33 is clamped into the slot 34 to elastically limit the outermost second gear 41. The elastic expansion mechanism 32 in this embodiment is a spring, the brake mechanism 4 in this embodiment needs to be started when the rope releasing length reaches the point where the outermost second gear 41 is engaged with the rope winding ring 1, generally, the length of the rope released during walking a pet can cause the outermost second gear 41 to be engaged with the rope winding ring 1, so that the use is not affected, because some large dogs have great strength, if the large dogs run suddenly, people are easy to fall down by adopting a fixed brake mechanism, and by adopting the above structure, the large dogs can be clamped into the clamping groove 34 through the limiting head 33, because the elastic force of the elastic expansion mechanism 32 on the limiting arm 31 elastically limits the outermost second gear 41, when the large dogs run suddenly, because the expansion of the elastic expansion mechanism 32 can play a buffering role, when the large dogs run suddenly, the outermost second gear 41 can still overcome the elastic force of the elastic expansion mechanism 32 to rotate the rope releasing, thereby preventing the person from being pulled over.

In this embodiment, the housing 100 has a central hole 107 therein, a supporting arm 108 is disposed in the central hole 107, and the supporting arm 108 is provided with a plurality of slots 34 having different center distances from the second gear 41. Adopt this structure can enough strengthen whole casing 100's intensity, again can be convenient go into the spacing head 33 card on the spacing arm 31 draw-in groove 34 to through the size of the adjustable buffer power of the draw-in groove 34 that changes the spacing head 33 card and go into, the user can adjust the size of buffer power according to factors such as self strength, bodily form.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.

Claims

1. Pet haulage rope, including casing (100) that forms cavity annular channel (103), be provided with out rope mouth (104) on casing (100), be provided with in annular channel (103) and wind becket bridle (1), it is equipped with rope (2) to wind becket bridle (1) periphery, rope (2) one end is connected the other end is followed on becket bridle (1) play rope mouth (104) stretch out, be provided with arrestment mechanism (3) and receipts rope mechanism (4), its characterized in that on casing (100): the rope winding mechanism is characterized in that a first gear ring (11) and a second gear ring (12) extending towards a rotation center are respectively arranged on two end faces of the rope winding ring (1), a guide support (5) is arranged in the shell (100), the periphery of the guide support (5) is in threaded fit with the rope winding ring (1), a screw hole (51) is arranged on the guide support (5), a screw rod (52) is in threaded fit with the screw hole (51), a first gear (53) is arranged on the screw rod (52), the first gear (53) is meshed with the first gear ring (11), the rope winding mechanism (4) comprises a plurality of groups of overlapped second gears (41) and coil springs (42), the inner end of each coil spring (42) is fixed on a positioning shaft (54), the outer end of each coil spring is fixed on the inner ring of the corresponding second gear (41), one of the second gears (41) is meshed with the second gear ring (12), when the rope winding ring (1) rotates along the rope outlet direction, the rope winding ring (1) is matched with the guide support (5) to move towards the direction of the second gear (41), the first gear ring (11) is matched with the first gear (53) to screw the screw rod (52) into the screw hole (51) at the same moving speed as the rope winding ring (1), when the second gear ring (12) is separated from the second gear (41) on the front side, the second gear ring (12) is meshed with the second gear (41) on the adjacent rear side, and the screw rod (52) is inserted between the gear teeth of the second gear (41) on the front side or in a limiting hole to limit the second gear (41) on the front side; when rope winding ring (1) rotates along the rope winding direction, rope winding ring (1) and guide support (5) are matched and are back to the second gear (41) to move, first gear ring (11) and first gear (53) are matched and are used for screwing screw rod (52) out of screw hole (51) at the same moving speed as rope winding ring (1), screw rod (52) is separated from gear teeth of second gear (41) or a limiting hole, and second gear ring (12) is meshed with second gear (41).

2. The pet leash of claim 1, wherein: the shell (100) is formed by splicing a first shell (101) and a second shell (102) through snap fit.

3. The pet leash of claim 1 or 2, wherein: the guide bracket (5) is fixed on the first shell (101) through a screw.

4. The pet leash of claim 2, wherein: the first shell (101) is spliced with the second shell (102), and a rope collecting mechanism accommodating part (105) for accommodating and limiting the rope collecting mechanism (4) is formed between the second shell (102) and the guide bracket (5).

5. The pet leash of claim 4, wherein: the rope winding mechanism accommodating part (105) is internally provided with the positioning shaft (54), and the positioning shaft (54) is fixed on the guide support (5).

6. The pet leash of claim 2, wherein: the second gear (41) and the rope winding ring (1) are integrally formed, and the first gear ring (11) is fixedly connected with the rope winding ring (1) through a screw.

7. The pet leash of claim 1, wherein: and a plurality of gaskets (43) for adjusting the positions and the intervals of the second gears (41) are arranged between the adjacent second gears (41) and/or on the outer sides of the second gears (41) at two ends.

8. The pet leash of claim 7, wherein: the gasket (43) is sleeved on the positioning shaft (54).

9. The pet leash of claim 1, wherein: lie in on casing (100) the outer terminal surface of second gear (41) is provided with opening (106), arrestment mechanism (3) are including spacing arm (31), spacing arm (31) one end and the outside second gear (41) rotate to be connected, the other end of spacing arm (31) is provided with spacing head (33), be provided with elastic expansion mechanism (32) on spacing arm (31), be provided with on casing (100) and be used for the location draw-in groove (34) of spacing head (33), spacing head (33) card is gone into draw-in groove (34) with the outside second gear (41) elasticity is spacing.

10. The pet leash of claim 9, wherein: the shell (100) is internally provided with a central hole (107), a supporting arm (108) is arranged in the central hole (107), and the supporting arm (108) is provided with a plurality of clamping grooves (34) with different center distances from the second gear (41).