Anti-burst pet traction device

Abstract

The utility model provides an anti-burst pet traction device, relates to the field of pet traction devices, and solves the problems that the pet traction device is poor in pet burst prevention effect and has potential safety hazards. The device comprises a shell, a swing body located in the shell, an elastic reset piece and a wire spool used for winding or releasing a pull wire, the swing body is rotationally connected to the wire spool, the fixed end of the elastic reset piece is fixed to the wire spool, the free end of the elastic reset piece abuts against one end of the swing body, and the other end of the swing body is provided with an abutting part; a protruding part is arranged on the shell, the swing body can synchronously rotate at a low speed along with the wire spool, the swing body can rotate relative to the wire spool when the wire spool rotates at a high speed, and then the abutting part abuts against the protruding part, so that the wire spool is prevented from continuing to rotate, the protection effect is achieved, and damage caused by pet burst is prevented. And after the wire spool stops rotating, the elastic reset piece is used for resetting the swing body.

Description

Technical Field

[0001] The utility model relates to the technical field of pet traction devices, in particular to an explosion-proof pet traction device. Background Art

[0002] The anti-rushing pet leash is a piece of equipment specially designed to reduce the pet's rushing behavior. It not only protects the pet's neck and respiratory tract from injury, but also prevents the leash holder from physical injuries caused by pulling.

[0003] The applicant has found that the prior art has at least the following technical problems: the pet traction device in the prior art is not effective in preventing the pet from rushing out, which leads to inconvenience in use and potential safety hazards. Utility Model Content

[0004] The purpose of the utility model is to provide an explosion-proof pet traction device to solve the technical problems that the pet traction device in the prior art is not effective in preventing pet explosion and has safety hazards; the many technical effects that can be produced by the preferred technical solution among the many technical solutions provided by the utility model are detailed as follows.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model provides an explosion-proof pet traction device, comprising a housing, a swinging body located in the housing, an elastic reset member, and a winding drum for winding or releasing a traction line, wherein:

[0007] The swing body is rotatably connected to the winding drum, the fixed end of the elastic reset member is fixed to the winding drum, and the free end thereof abuts against one end of the swing body, and the other end of the swing body is provided with an abutting portion;

[0008] The shell is provided with a protrusion, and the swinging body can rotate synchronously with the winding drum at a low speed. The swinging body can rotate relative to the winding drum when the winding drum rotates at a high speed, so that the abutting portion contacts the protrusion, thereby limiting the winding drum from continuing to rotate; after the winding drum stops rotating, the elastic reset member is used to reset the swinging body.

[0009] Preferably, the middle part of the swing body is rotatably connected to the winding drum through a first rotating shaft, and the first rotating shaft is located beside the axis of the winding drum; a groove body is provided on the winding drum, and a mounting column is provided at one end of the swing body, the elastic reset member is sleeved on the mounting column, and the fixed end of the elastic reset member is fixed in the groove body.

[0010] Preferably, a limiting flange is provided on the housing, the limiting flange is an annular structure, and the swinging body is located inside the limiting flange;

[0011] When the swinging body rotates synchronously with the winding drum at a low speed, the abutting portion is located on the inner side of the protruding portion;

[0012] The protrusion is arranged on the inner wall of the limiting flange, and the protrusion is arranged along the radial direction of the limiting flange.

[0013] Preferably, the raised portions are arranged at intervals around the center of the limiting flange.

[0014] Preferably, the winding reel comprises a reel body, a cover body and a torsion spring, wherein:

[0015] The disc body is formed with a receiving cavity, a shaft portion is arranged in the receiving cavity, the shaft portion is rotatably connected to the housing, one end of the torsion spring is fixed to the shaft portion, and the other end is fixed to the side wall of the receiving cavity, the cover body is covered on the disc body, and closes the opening of the receiving cavity;

[0016] The swinging body and the elastic reset member are located on the cover body.

[0017] Preferably, a positioning protrusion is provided on the cover body, and an arc-shaped groove is provided on the swinging body. When the abutting portion abuts against the protruding portion, the positioning protrusion abuts against the inner wall of the arc-shaped groove, thereby limiting the rotation angle of the swinging body compared to the winding reel.

[0018] Preferably, a locking assembly is provided in the shell, and a slot is provided on the peripheral wall of the winding drum, and one or more slots are provided around the center of the winding drum, and at least a part of the locking assembly can extend into the slot when the winding drum stops rotating, and disengage from the slot when the winding drum rotates.

[0019] Preferably, the locking assembly comprises a rotating body and an elastic sheet, wherein:

[0020] The rotating body is rotatably connected to the shell, a clamping block is arranged on the outer edge of the rotating body, the elastic sheet is fixed to the shell and connected to the rotating body, the elastic sheet is in an original state, and when the winding drum stops rotating, the clamping block extends into the clamping slot;

[0021] When the winding drum rotates, the rotating body rotates under the push of the winding drum and compresses the elastic sheet, so that the clamping block is separated from the clamping slot; the elastic sheet is used to push the rotating body to reset.

[0022] Preferably, the rotating body is a fan-shaped structure, the arcuate side of the fan-shaped structure is arranged toward the winding drum, and the clamping block is fixed on the arcuate side.

[0023] Preferably, the elastic sheet includes a first force arm and a second force arm fixed on the housing, wherein:

[0024] The connection part of the first force arm and the second force arm is fixed to the side of the rotating body away from the winding drum. The first force arm and the second force arm are respectively located on the opposite sides of the rotating body. When the rotating body rotates, the first force arm or the second force arm can be compressed.

[0025] Compared with the prior art, the explosion-proof pet traction device provided by the utility model has the following beneficial effects: when the winding drum rotates at a lower speed, the swing body rotates synchronously with the winding drum at a low speed, the swing body does not rotate compared with the winding drum, the abutment part does not conflict with the protrusion, and the winding drum rotates normally to release the traction line; when an explosion occurs, the winding drum rotates rapidly, and is subjected to the centrifugal force, the swing part rotates compared with the winding drum, and the abutment part conflicts with the protrusion on the shell, thereby limiting the winding drum from continuing to rotate, playing a protective role, and preventing the pet from being hurt by the explosion. And the elastic reset member can reset the swing body, so that the traction device can continue to work. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of the external structure of the explosion-proof pet traction device;

[0028] Figure 2 It is a schematic diagram of the matching structure of the winding drum body and the locking assembly;

[0029] Figure 3 It is a schematic diagram of the matching structure of the swinging member, the elastic reset member and the winding drum;

[0030] Figure 4 It is a schematic diagram of the matching structure of the locking assembly, the winding drum and the housing;

[0031] Figure 5 It is a structural schematic diagram of the limiting flange.

[0032] In the figure, 100 is the shell; 101 is the wire outlet hole; 1 is the winding reel; 11 is the reel body; 111 is the slot; 12 is the cover body; 121 is the positioning protrusion; 13 is the shaft portion; 21 is the swinging body; 211 is the abutting portion; 212 is the arc groove; 22 is the elastic reset member; 23 is the first shaft; 31 is the rotating body; 311 is the block; 32 is the elastic sheet; 321 is the first force arm; 322 is the second force arm; 4 is the limiting flange; 41 is the protrusion. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0034] In the description of the present invention, it should be understood that the terms "center", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "side" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0035] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The embodiment of the utility model provides an explosion-proof pet traction device, wherein the abutment portion 211 abuts against the raised portion 41 on the housing 100, thereby limiting the winding reel 1 from continuing to rotate, thereby playing a protective role and preventing the pet from being injured by the explosion.

[0037] Combine the following Figure 1-Figure 5 The technical solution provided by the utility model is described in more detail.

[0038] like Figure 1-Figure 5 As shown, the explosion-proof pet traction device provided by the utility model includes a shell 100, a swinging body 21 located in the shell 100, an elastic reset member 22, and a winding drum 1 for winding or releasing the traction line, wherein: the swinging body 21 is rotatably connected to the winding drum 1, the fixed end of the elastic reset member 22 is fixed to the winding drum 1, and its free end abuts against one end of the swinging body 21, and the other end of the swinging body 21 is provided with a supporting portion 211; a protrusion 41 is provided on the shell 100, and the swinging body 21 can rotate synchronously with the winding drum 1 at a low speed, and the swinging body 21 can rotate relative to the winding drum 1 when the winding drum 1 rotates at a high speed, so that the abutting portion 211 is in conflict with the protrusion 41, thereby limiting the winding drum 1 from continuing to rotate; after the winding drum 1 stops rotating, the elastic reset member 22 is used to reset the swinging body 21.

[0039] The housing 100 is provided with a wire outlet hole 101 for the traction wire to pass through. The "elastic reset member 22" may be a reset spring.

[0040] In the explosion-proof pet traction device of this embodiment, when the winding drum 1 rotates at a lower speed, the swinging body 21 rotates synchronously with the winding drum 1 at a low speed, and the swinging body 21 does not rotate compared with the winding drum 1, and the abutting part 211 does not conflict with the protrusion 41, and the winding drum rotates normally to release the traction line; when an explosion occurs, the winding drum 1 rotates rapidly, and is subjected to the centrifugal force, and the swinging part rotates compared with the winding drum 1, and the abutting part 211 conflicts with the protrusion 41 on the housing 100, thereby limiting the winding drum 1 from continuing to rotate, playing a protective role, and preventing the pet from being hurt by the explosion. And the elastic reset member 22 can reset the swinging body 21, so that the traction device can continue to work.

[0041] Among them, see Figure 2 As shown, as an optional embodiment, the winding reel 1 includes a reel body 11, a cover body 12 and a torsion spring (not shown in the figure), wherein: a accommodating cavity is formed in the reel body 11, a rotating shaft portion 13 is arranged in the accommodating cavity, the rotating shaft portion 13 is rotatably connected to the shell body 100, one end of the torsion spring is fixed on the rotating shaft portion 13, and the other end is fixed on the side wall of the accommodating cavity, the cover body 12 covers the reel body 11 and closes the opening of the accommodating cavity; the swinging body 21 and the elastic reset member 22 are located on the cover body 12.

[0042] The winding drum 1 of the above structure can rotate under the pulling of the traction line, thereby releasing the traction line.

[0043] As an alternative embodiment, see Figure 3As shown, the middle part of the swing body 21 is rotatably connected to the winding drum 1 through the first rotating shaft 23, and the first rotating shaft 23 is located beside the axis of the winding drum 1; a groove body is provided on the winding drum 1, and a mounting column is provided at one end of the swing body 21, and the elastic reset member 22 is sleeved on the mounting column, and the fixed end of the elastic reset member 22 is fixed in the groove body.

[0044] See also Figure 3 As shown, the above structure enables the swing body 21 to be rotatably connected to the cover body 12 of the winding drum 1, and no relative interference occurs between the torsion spring in the winding drum 1 and the swing body 21.

[0045] When the winding drum 1 rotates at a low speed under the action of external force, the swing body 21 will not rotate relative to the winding drum 1, and the swing body 21 rotates synchronously with the winding drum 1. The power for the relative rotation between the swing body 21 and the winding drum 1 comes from the centrifugal force caused by the high-speed rotation of the winding drum 1.

[0046] As an alternative embodiment, see Figure 5 As shown, a limiting flange 4 is provided on the shell 100, and the limiting flange 4 is a ring structure. The swinging body 21 is located inside the limiting flange 4; when the swinging body 21 rotates synchronously with the winding drum 1 at a low speed, the abutting portion 211 is located on the inner side of the protruding portion 41; the protruding portion 41 is provided on the inner wall of the limiting flange 4, and the protruding portion 41 is provided along the radial direction of the limiting flange 4.

[0047] Combination Figure 3 and Figure 5 As shown, when the winding drum 1 rotates at a low speed under the action of external force, the swinging body 21 will not rotate relative to the winding drum 1, and the swinging body 21 and the winding drum 1 rotate synchronously. At this time, the abutting portion 211 does not interfere with the raised portion 41 on the limiting flange 4, and the winding drum 1 rotates normally. When an explosion occurs, the winding drum 1 rotates rapidly, and under the action of centrifugal force, the swinging member rotates compared to the winding drum 1. As the swinging member rotates, the position of the swinging member changes, and the abutting portion 211 can conflict with the raised portion 41 on the housing 100. At this time, the abutting portion 211 on the housing 100 limits the rotation of the swinging member, and then limits the rotation of the winding drum 1, which has the effect of preventing explosions and ensuring safety in use.

[0048] As an alternative embodiment, see Figure 5 As shown, the protrusions 41 are arranged at intervals around the center of the limiting flange 4, so that the abutting portion 211 of the swinging member can abut against the protrusion 41 at the closest position.

[0049] As an alternative embodiment, see Figure 3As shown, a positioning protrusion 121 is provided on the cover body 12, and an arc groove 212 is provided on the swing body 21. When the abutting portion 211 abuts against the protruding portion 41, the positioning protrusion 121 abuts against the inner wall of the arc groove 212, thereby limiting the rotation angle of the swing body 21 compared to the winding reel 1.

[0050] The above structure can limit the rotation angle of the swing member, preventing the swing member from swinging too much and causing the swing member to be unable to reset.

[0051] As an alternative embodiment, see Figure 2-Figure 4 As shown, a locking assembly is provided in the housing 100, and a slot 111 is provided on the peripheral wall of the winding drum 1. One or more slots 111 are provided around the center of the winding drum 1. At least a portion of the locking assembly can extend into the slot 111 when the winding drum 1 stops rotating, and can be disengaged from the slot 111 when the winding drum 1 rotates.

[0052] The locking assembly can be disengaged from the winding drum 1 when the winding drum 1 rotates normally without affecting the rotation of the winding drum 1, and can extend into the card slot 111 of the winding drum 1 when the winding drum 1 stops rotating, thereby limiting the continuous rotation of the winding drum 1 and locking the length of the traction line.

[0053] As an alternative embodiment, see Figure 2-Figure 4 As shown, the locking assembly includes a rotating body 31 and an elastic sheet 32, wherein: the rotating body 31 is rotatably connected to the shell 100, a block 311 is provided on the outer edge of the rotating body 31, the elastic sheet 32 ​​is fixed to the shell 100 and connected to the rotating body 31, the elastic sheet 32 ​​is in the original state, and when the winding drum 1 stops rotating, the block 311 extends into the slot 111; when the winding drum 1 rotates, the rotating body 31 rotates under the push of the winding drum 1 and compresses the elastic sheet 32, thereby separating the block 311 from the slot 111; the elastic sheet 32 ​​is used to push the rotating body 31 to reset.

[0054] For details, see Figure 2 and Figure 4 As shown, the elastic sheet 32 ​​includes a first force arm 321 and a second force arm 322 fixed on the shell 100, wherein: the connecting portion of the first force arm 321 and the second force arm 322 is fixed to the side of the rotating body 31 away from the winding reel 1, and the first force arm 321 and the second force arm 322 are respectively located on the opposite sides of the rotating body 31, and the rotating body 31 can compress the first force arm 321 or the second force arm 322 when rotating.

[0055] When the winding drum 1 continues to rotate, the winding drum 1 pushes the block 311, and the rotating body 31 rotates to a position where it does not interfere with the winding drum 1. At this time, the elastic sheet 32 ​​is compressed. When the winding drum 1 stops rotating, the rotating body 31 returns to its original position under the elastic restoring force of the corresponding elastic sheet 32, and the block 311 of the rotating body 31 extends into the slot 111 of the winding drum 1, preventing the traction line from being continuously released and preventing the traction line from being recovered into the shell 100, thereby ensuring the stability of the traction device.

[0056] As an optional embodiment, the rotating body 31 is a fan-shaped structure, the arc side of the fan-shaped structure is arranged toward the winding drum 1, and the clamping block 311 is fixed on the arc side. The rotating body 31 of this structure can not interfere with the rotation of the winding drum 1 when rotating.

[0057] The explosion-proof pet traction device of this embodiment is also provided with a damping member for causing the traction line to rebound slowly. The damping member can be directly purchased from the market.

[0058] In the description of this specification, specific features, structures or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0059] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0060] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An explosion-proof pet traction device, characterized in that: It comprises a housing, a swinging body located in the housing, an elastic reset member, and a winding drum for winding or releasing a traction line, wherein: The swing body is rotatably connected to the winding drum, the fixed end of the elastic reset member is fixed to the winding drum, and the free end thereof abuts against one end of the swing body, and the other end of the swing body is provided with an abutting portion; The shell is provided with a protrusion, and the swinging body can rotate synchronously with the winding drum at a low speed. The swinging body can rotate relative to the winding drum when the winding drum rotates at a high speed, so that the abutting portion contacts the protrusion, thereby limiting the winding drum from continuing to rotate; after the winding drum stops rotating, the elastic reset member is used to reset the swinging body.

2. The explosion-proof pet traction device according to claim 1, characterized in that: The middle part of the swing body is rotatably connected to the winding drum through a first rotating shaft, and the first rotating shaft is located beside the axis of the winding drum; a groove body is provided on the winding drum, and a mounting column is provided at one end of the swing body, the elastic reset member is sleeved on the mounting column, and the fixed end of the elastic reset member is fixed in the groove body.

3. The explosion-proof pet traction device according to claim 1, characterized in that: A limiting flange is arranged on the housing, the limiting flange is an annular structure, and the swinging body is located inside the limiting flange; When the swinging body rotates synchronously with the winding drum at a low speed, the abutting portion is located on the inner side of the protruding portion; The protrusion is arranged on the inner wall of the limiting flange, and the protrusion is arranged along the radial direction of the limiting flange.

4. The explosion-proof pet traction device according to claim 3, characterized in that: The protrusions are arranged at intervals around the center of the limiting flange.

5. The explosion-proof pet traction device according to claim 1, characterized in that: The winding reel comprises a reel body, a cover body and a torsion spring, wherein: The disc body is formed with a receiving cavity, a shaft portion is arranged in the receiving cavity, the shaft portion is rotatably connected to the housing, one end of the torsion spring is fixed to the shaft portion, and the other end is fixed to the side wall of the receiving cavity, the cover body is covered on the disc body, and closes the opening of the receiving cavity; The swinging body and the elastic reset member are located on the cover body.

6. The explosion-proof pet traction device according to claim 5, characterized in that: The cover body is provided with a positioning protrusion, and the swing body is provided with an arc groove. When the abutting portion abuts against the protrusion, the positioning protrusion abuts against the inner wall of the arc groove, thereby limiting the rotation angle of the swing body compared to the winding drum.

7. The explosion-proof pet traction device according to claim 1, characterized in that: A locking assembly is provided in the shell, and a slot is provided on the peripheral wall of the winding drum. One or more slots are provided around the center of the winding drum. At least part of the locking assembly can extend into the slot when the winding drum stops rotating, and can be disengaged from the slot when the winding drum rotates.

8. The explosion-proof pet traction device according to claim 7, characterized in that: The locking assembly comprises a rotating body and an elastic sheet, wherein: The rotating body is rotatably connected to the shell, a clamping block is arranged on the outer edge of the rotating body, the elastic sheet is fixed to the shell and connected to the rotating body, the elastic sheet is in an original state, and when the winding drum stops rotating, the clamping block extends into the clamping slot; When the winding drum rotates, the rotating body rotates under the push of the winding drum and compresses the elastic sheet, so that the clamping block is separated from the clamping slot; the elastic sheet is used to push the rotating body to reset.

9. The explosion-proof pet traction device according to claim 8, characterized in that: The rotating body is a fan-shaped structure, the arcuate side of the fan-shaped structure is arranged toward the winding drum, and the clamping block is fixed on the arcuate side.

10. The explosion-proof pet traction device according to claim 8, characterized in that: The elastic sheet includes a first force arm and a second force arm fixed on the housing, wherein: The connection part of the first force arm and the second force arm is fixed to the side of the rotating body away from the winding drum. The first force arm and the second force arm are respectively located on the opposite sides of the rotating body. When the rotating body rotates, the first force arm or the second force arm can be compressed.

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