An electric release mechanism and pet leash

Abstract

This invention relates to the field of pet supplies technology, specifically to an electric release mechanism. It includes a housing, a locking assembly, an unlocking assembly, and a rotary drive assembly. The housing has an opening and a mounting cavity, the mounting cavity being connected to the outside of the housing through the opening. The opening is used to insert a snap-fit. The locking assembly is installed in the mounting cavity and includes a hook that is movably disposed within the mounting cavity. The hook engages with the snap-fit ​​to lock it. The unlocking assembly is installed in the mounting cavity and located on one side of the hook. The unlocking assembly includes a first rotating seat with a protrusion. The output end of the rotary drive assembly is connected to the first rotating seat. The rotary drive assembly drives the first rotating seat to rotate, causing the protrusion to rotate and abut against the hook, thereby disengaging the locking assembly from the unlocking assembly. This invention allows users to remotely control the rotary drive assembly, automatically releasing the electric release mechanism, making operation more convenient and efficient, and improving the user experience.

Description

Technical Field

[0001] This invention relates to the field of pet supplies technology, and in particular to an electric release mechanism and a pet leash. Background Technology

[0002] When taking your pet out, you need to connect the leash to the pet collar using a buckle to keep the pet's movement within a controlled range.

[0003] The existing locks need to be manually released. When the pet is led to an area where it can move freely, the owner needs to bend down and approach the lock to unlock it manually so that the pet can be freed from restraint and run freely, which is very inconvenient.

[0004] Compared to purely manual unlocking structures, electric unlocking structures can automatically unlock as long as they receive a control signal. The control signal can come from a button far away from the lock, an external remote control, a mobile phone, etc., so users do not need to approach the lock to unlock. Therefore, there is an urgent need to develop an electric release device suitable for pet leashes to improve the user experience when unlocking. Summary of the Invention

[0005] The technical problem to be solved by the embodiments of the present invention is to provide an electric release device and a pet leash, so as to solve the problem that in the prior art, users need to bend down to approach the lock on the pet leash in order to unlock it manually, which is very inconvenient.

[0006] In a first aspect, embodiments of the present invention provide an electric trip unit, comprising:

[0007] The housing has an opening and a mounting cavity, the mounting cavity being connected to the outside of the housing through the opening; the opening is used to insert a buckle, the buckle having a fastening part.

[0008] A fastening assembly is installed in the mounting cavity. The fastening assembly includes a hook that is movably disposed in the mounting cavity. The hook includes a fastening part that is used to cooperate with the fastening part to lock the buckle.

[0009] An unlocking component is installed in the mounting cavity and located on one side of the hook. The unlocking component includes a first rotating seat, and a protrusion is provided on the circumferential surface of the first rotating seat.

[0010] A rotary drive assembly is installed in the mounting cavity; the output end of the rotary drive assembly is connected to the first rotating seat; the rotary drive assembly is used to drive the first rotating seat to rotate, so that the protrusion can rotate to abut against the hook, thereby driving the fastening part to disengage from the fastening part.

[0011] Optionally, the electric trip unit further includes a pop-out assembly, which includes a first elastic element and a pusher. The pusher is installed in the mounting cavity and abuts against the buckle in the orientation of the opening. The first elastic element is connected to the pusher. The first elastic element is used to release energy when the fastening part disengages from the fastening part and drive the pusher to move toward the opening.

[0012] Optionally, the fastening assembly further includes a second elastic element installed in the mounting cavity, the second elastic element being connected to the hook element, and the second elastic element being used to store energy when the protrusion abuts against the hook element.

[0013] Optionally, the unlocking component further includes a second rotating seat mounted on the output end of the rotary drive component. The second rotating seat is mounted on the side of the first rotating seat away from the opening. The first rotating seat has a first tooth on the side facing the second rotating seat, and the second rotating seat has a second tooth on the side facing the first rotating seat. The first tooth and the second tooth mesh with each other. The first rotating seat is connected to the output end of the rotary drive component through the second rotating seat. A shoulder is provided on the circumferential surface of the first rotating seat, and a limiting step is provided on the side of the pusher facing the first rotating seat. The limiting step abuts against the shoulder on the side away from the opening.

[0014] Optionally, the unlocking component includes a third elastic element, which includes a compression coil and two rotating arms. The compression coil is disposed on the side of the first rotating seat facing the opening to store energy when the pusher moves toward the opening. One of the rotating arms is fixed in the mounting cavity, and the other rotating arm is connected to the first rotating seat so that the third elastic element can store energy when the protrusion rotates toward the hook.

[0015] Optionally, the electric trip unit has a self-locking structure, which includes a latch disposed on the circumferential surface of the first rotating seat and a locking tongue disposed on the hook member. The latch and the protrusion are spaced apart on the rotation direction of the first rotating seat.

[0016] Optionally, the electric trip unit includes a manual unlocking component, which includes an unlocking key. The unlocking key is movably mounted on the housing and includes a button end and a supporting end. The button end is exposed on the housing, and the supporting end is connected to the button end and abuts against the side of the latching member facing the first rotating seat.

[0017] Optionally, the button end is located on the side of the first rotating seat facing away from the hook member, one side of the abutting end is connected to the button end, and the other side extends toward the hook member. The side of the unlock button facing the hook member is equipped with a fourth elastic element 720 to store energy when the unlock button moves toward the hook member.

[0018] Secondly, embodiments of the present invention also provide a pet leash, comprising:

[0019] The electric trip unit of each embodiment of the first aspect described above.

[0020] Optionally, the pet leash further includes:

[0021] A snap fastener has a fastening part, and the snap fastener is inserted into the opening of the electric trip unit;

[0022] A pet wearer that connects to the buckle;

[0023] A traction rope, one end of which is connected to the housing of the electric release device;

[0024] A handle is connected to the other end of the traction rope, and the handle is provided with a switch electrically connected to the rotary drive assembly of the electric release device.

[0025] Compared with the prior art, the beneficial effects of the electric release device provided in this invention are as follows: The rotary drive component in this invention can drive the first rotating seat to rotate. When the first rotating seat rotates to the point where the protrusion abuts against the hook, the relative position of the hook in the housing changes, thereby causing the latching part in the hook to disengage from the latching part in the buckle, that is, the hook and buckle are unlocked, and the buckle can be separated from the electric release device. Compared with the prior art where the owner needs to manually unfasten the pet's buckle, this invention allows the owner to remotely control the rotary drive component to operate, thereby automatically releasing the electric release device, making the operation more convenient and efficient, and improving the owner's user experience. Attached Figure Description

[0026] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. In the accompanying drawings:

[0027] Figure 1 This is a three-dimensional schematic diagram of the separation of the electric trip unit and the buckle provided in an embodiment of the present invention;

[0028] Figure 2 This is a three-dimensional schematic diagram of the electric trip unit and the buckle when locked, provided in an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the locked state of the electric trip unit and the buckle provided in an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the unlocking state of the electric release device and the buckle provided in an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the state of the unlocking component when locked, provided in an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the unlocking component when locked, provided in an embodiment of the present invention, from another angle.

[0033] Figure 7 This is a schematic diagram of the state of the unlocking component during unlocking provided in an embodiment of the present invention;

[0034] Figure 8 This is a schematic diagram of the state of the button component when locked, provided in an embodiment of the present invention;

[0035] Figure 9 This is a schematic diagram showing the state of the locking hook and the first rotating seat when locked, according to an embodiment of the present invention.

[0036] Figure 10 This is a schematic diagram showing the state of the hook and the first rotating seat during electric unlocking according to an embodiment of the present invention;

[0037] Figure 11 This is a schematic diagram of the hook, the first rotating seat, and the button assembly from another angle during manual unlocking, as provided in an embodiment of the present invention.

[0038] Figure 12 This is a schematic diagram of the state of the latch, the first rotating seat and the button assembly during manual reset locking according to an embodiment of the present invention from another angle;

[0039] Figure 13 This is a schematic diagram showing the state of the latch, buckle, and button assembly during manual reset locking according to an embodiment of the present invention;

[0040] Figure 14 This is a schematic diagram showing the state of the hook, buckle, and button assembly during manual unlocking according to an embodiment of the present invention;

[0041] Figure 15 This is a schematic diagram of the state of the pop-out component and the buckle when locked, provided in an embodiment of the present invention;

[0042] Figure 16 This is a schematic diagram of the state of the pop-out component and the buckle during unlocking provided in an embodiment of the present invention;

[0043] Figure 17 This is a schematic diagram of the combination of the first rotating seat and the pusher provided in an embodiment of the present invention.

[0044] The labels for the attached figures are as follows:

[0045] 1000. Electric trip unit;

[0046] 100. Shell; 110. Opening;

[0047] 200. Buckle; 210. Fastening part;

[0048] 300. Fastening assembly; 310. Hook and latch; 311. Fastening part; 312. Pressing part; 313. Rotating part; 320. Second elastic element;

[0049] 400. Rotary drive assembly;

[0050] 500. Unlocking component; 510. First rotating seat; 511. Protrusion; 512. Shoulder; 513. First protrusion; 514. First tooth; 520. Third elastic element; 521. Coil; 522. Rotating arm; 530. Second rotating seat; 531. Second tooth;

[0051] 600. Pop-up component; 610. First elastic element; 620. Push element; 621. Limiting step;

[0052] 700, Manual unlocking component; 710, Unlock button; 711, Button end; 712, Support end; 712a, Second protrusion; 720, Fourth elastic element;

[0053] 800, self-locking structure; 810, latch; 820, bolt. Detailed Implementation

[0054] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0055] This invention provides an electric trip unit 1000, such as... Figures 1 to 5As shown, the electric trip unit 1000 includes a housing 100, a fastening assembly 300, an unlocking assembly 500, and a rotary drive assembly 400. The housing 100 has an opening 110 and a mounting cavity, the mounting cavity being connected to the outside of the housing 100 through the opening 110; the opening 110 is used to insert a snap fastener 200, the snap fastener 200 having a fastening portion 210; the fastening assembly 300 is installed in the mounting cavity, the fastening assembly 300 includes a hook 310, the hook 310 being movably disposed in the mounting cavity, the hook 310 including a fastening portion 311, the fastening portion 311 being used to cooperate with the fastening portion 210 to lock the snap fastener 200; the unlocking assembly 500... The unlocking assembly 500 is installed in the mounting cavity and located on one side of the hook 310. The first rotating seat 510 has a protrusion 511 on its circumferential surface. The rotation drive assembly 400 is installed in the mounting cavity. The output end of the rotation drive assembly 400 is connected to the first rotating seat 510. The rotation drive assembly 400 is used to drive the first rotating seat 510 to rotate, so that the protrusion 511 can rotate to abut against the hook 310, thereby driving the fastening part 311 to disengage from the fastening part 210.

[0056] Specifically, when unlocking is required, the user only needs to remotely control the rotary drive assembly 400. After receiving the control command, the rotary drive assembly 400 drives the first rotating seat 510 to start rotating. During the rotation, the protrusion 511 of the first rotating seat 510 gradually approaches the hook member 310 until the protrusion 511 abuts against the hook member 310. Subsequently, the relative position of the hook member 310, which is subjected to force, changes within the housing 100, thereby disengaging the latching part 311 of the hook member 310 from the latching part 210 of the buckle 200, thus unlocking the device. The buckle 200 can then be separated from the electric trip unit 1000. Therefore, by implementing this embodiment of the invention, the user can quickly and automatically trip the electric trip unit 1000, making operation more convenient and efficient, and improving the user experience.

[0057] There are many ways to arrange the protrusion 511 of the first rotating seat 510 in this invention. In one embodiment, it can be a boss protruding from the circumferential surface of the first rotating seat 510. (See reference...) Figure 4 and Figure 5In another embodiment, the protrusion 511 extends circumferentially along the first rotating seat 510, and the distance between the outer side of the protrusion 511 and the center of the first rotating seat 510 gradually increases. Specifically, as the protrusion 511 rotates to the preset unlocking position, the distance between the portion of the protrusion 511 that abuts against the hook 310 and the center of the first rotating seat 510 gradually increases, thereby causing the hook 310 to gradually move away from the first rotating seat 510, and thus enabling the engaging portion 311 to gradually disengage from the engaging portion 210. By implementing this embodiment, the smoothness of the unlocking process can be increased, the occurrence of jamming during the unlocking process can be reduced, and the load on the rotary drive assembly 400 is smaller.

[0058] In this invention, the rotary drive assembly 400 that controls the rotation of the first rotating seat 510 can be a DC motor or a drive unit with a rotation function.

[0059] Reference Figure 3 , Figure 4 , Figure 15 as well as Figure 16 In one embodiment, the electric trip unit 1000 further includes a pop-out component 600, which includes a first elastic element 610 and a pusher 620. The pusher 620 is installed in the mounting cavity and abuts against the buckle 200 in the orientation of the opening 110. The first elastic element 610 and the pusher 620 are connected to release energy when the fastening part 311 disengages from the fastening part 210, thereby driving the pusher 620 to move toward the opening 110. Specifically, during the process of the buckle 200 being inserted into the opening 110 and locking, the buckle 200 can drive the pusher 620 to move along with it. The pusher 620 compresses the first elastic element 610 to store energy until the buckle 200 is locked. When the buckle 200 is unlocked from the latch 310, the first elastic element 610 releases energy, causing the pusher 620 to move and thus push the buckle 200 out of the opening 110. This design allows the latch 200 to be quickly released from the electric trip unit 1000, reducing the likelihood of the latch 200 being difficult to remove.

[0060] The number of first elastic elements 610 can be set according to actual needs. For example, the number of first elastic elements 610 can be one. Or, for example, the number of first elastic elements 610 can be set to two, with the two first elastic elements 610 located on both sides of the pusher, so that the pusher 620 is subjected to more even force, which is conducive to force transmission and makes the buckle 200 better ejected from the opening 110.

[0061] Reference Figure 3 , Figure 4 , Figure 15 as well as Figure 16In the present invention, the latch 310 can be movably disposed in the mounting cavity in various ways. In one embodiment, the latch 310 adopts a rotating connection. Specifically, the latch 310 further includes a pressing part 312 and a rotating part 313, the rotating part 313 being located between the pressing part 312 and the fastening part 311, and the rotating part 313 being rotatably disposed in the mounting cavity. The latch 310 can swing towards or away from the buckle 200, thereby engaging or disengaging the fastening part 311 and the fastening part 210, realizing locking or unlocking. In another embodiment, the latch 310 adopts a sliding connection (not shown in the figure). Specifically, the hook 310 also includes a sliding part, which is slidably connected to the mounting cavity. The sliding connection can be configured by setting a slide rail between the sliding part and the mounting cavity, or by setting matching grooves and protrusions on the walls of the sliding part and the mounting cavity respectively. The protrusions can slide in the grooves, so that the hook 310 can slide closer to or further away from the buckle 200, thereby locking or unlocking the fastening part 311 and the fastening part 210.

[0062] Furthermore, there are various possible matching structures for the fastening portion 210 and the engaging portion 311. For example, the engaging portion 311 may include a protrusion, and the fastening portion 210 may include a groove for receiving the protrusion; the protrusion is inserted into the groove to achieve locking. Similarly, a groove on the fastening portion 311 and a protrusion on the fastening portion 210 can also achieve locking. As another example, the fastening portion 311 may be a pin, and the fastening portion 210 may have a pin hole; the pin is inserted into the pin hole to achieve locking.

[0063] Reference Figure 3 , Figure 4 , Figure 15 as well as Figure 16In one embodiment, the fastening assembly 300 further includes a second elastic element 320 installed in the mounting cavity, which is connected to the hook element 310. The second elastic element 320 stores energy when the protrusion 511 abuts against the hook element 310. The function of the second elastic element 320 is to enable the hook element 310 to automatically reset after unlocking. The second elastic element 320 can be a spring, a spring pad, or other elastically deformable parts. Specifically, when the hook element 310 unlocks from the buckle 200, the hook element 310 can continuously apply pressure to the second elastic element 320, causing the second elastic element 320 to compress and store energy, and release the energy when the hook element 310 is not subjected to other forces, causing the hook element 310 to return to its initial preset position. This configuration automatically resets to the initial position to reduce the complexity of operation and the possibility of human error, making unlocking more convenient and efficient. There are many ways to install the second elastic element 320. For example, when the hook member 310 is rotatably connected, the rotating part 313 of the hook member 310 is located between its pressing part 312 and the fastening part 311. One end of the second elastic member 320 abuts against the pressing part 312, and the other end of the second elastic member 320 is connected to the cavity wall of the mounting cavity. Utilizing the lever principle, the pressing part 312 compresses the second elastic member 320 when the fastening part 311 moves away from the fastening part 210. In another example, when the hook member 310 is slidably connected, one end of the second elastic member 320 abuts against the side of the hook member 310 facing away from the buckle 200, and the other end of the second elastic member 320 is connected to the cavity wall of the mounting cavity, allowing the hook member 310 to better press the second elastic member 320, facilitating repositioning.

[0064] Reference Figure 15 and Figure 16 In one embodiment, the distance between the rotation centers of the pressing part 312 and the rotating part 313 is less than the distance between the rotation centers of the fastening part 311 and the rotating part 313, that is, the lever arm of the rotation centers of the pressing part 312 and the rotating part 313 is less than the lever arm of the rotation centers of the fastening part 311 and the rotating part 313. When the hook member 310 is displaced and the buckle is unlocked, a force is applied between the fastening part 311 and the rotating part 313. The force is transmitted to the pressing part 312, which can convert a larger force to apply pressure to the second elastic member 320, ensuring that the second elastic member 320 is compressed to a preset compression amount, thereby improving the stability of the hook member 310's reset.

[0065] Reference Figure 4 , Figure 5 , Figure 7 , Figure 15 as well as Figure 16In one embodiment, the unlocking component 500 further includes a second rotating seat 530, which is mounted on the output end of the rotary drive component 400. The second rotating seat 530 is mounted on the side of the first rotating seat 510 away from the opening 110. The side of the first rotating seat 510 facing the second rotating seat 530 is provided with a first protruding tooth 514, and the side of the second rotating seat 530 facing the first rotating seat 510 is provided with a second protruding tooth 531. The first protruding tooth 514 and the second protruding tooth 531 mesh. The first rotating seat 510 is connected to the output end of the rotary drive component 400 through the second rotating seat 530. (Refer to...) Figure 17 The first rotating seat 510 has a shoulder 512 on its circumferential surface, and the pusher 620 has a limiting step 621 on the side facing the first rotating seat 510. The limiting step 621 abuts against the side of the shoulder 512 facing away from the opening 110. Specifically, during the unlocking process, the pusher 620 moves toward the opening 110, and the limiting step 621 abuts against the shoulder 512, causing the first rotating seat 510 to slide along with it. The first rotating seat 510 separates from the second rotating seat 530. At the same time that the buckle 200 is ejected, the first rotating seat 510 is no longer controlled by the rotation drive assembly 400. Therefore, even if the buckle 200 is not inserted into the opening 110 and the rotation drive assembly 400 is accidentally activated, the first rotating seat 510 will not rotate accordingly.

[0066] It is worth mentioning that, because the latch 310 resets after disengaging from the buckle 200, if the rotary drive assembly 400 is accidentally activated, the first rotating seat 510 will rotate accordingly. Consequently, the protrusion 511 on the first rotating seat 510 will continuously contact the latch 310, thus reducing the service life of the electric trip unit 1000. Therefore, implementing the above embodiment can also extend the service life of the electric trip unit 1000.

[0067] Reference Figure 5 and Figure 6 In one embodiment, the unlocking component 500 includes a third elastic element 520, which includes a compression coil 521 and two rotating arms 522. The compression coil 521 is disposed on the side of the first rotating seat 510 facing the opening to store energy when the pusher 620 moves toward the opening. One rotating arm 522 is fixed in the mounting cavity, and the other rotating arm 522 is connected to the first rotating seat 510 so that the first elastic element can store energy when the protrusion rotates toward the hook 310. The third elastic element 520 is a torsion spring, which can achieve torsional and compression movements by storing and releasing elastic potential energy to realize the automatic reset of the first rotating seat 510, thereby reducing the complexity of operation and the possibility of human error, making unlocking convenient and efficient.

[0068] On one hand, the third elastic element 520 has a torsional motion function. Specifically, the rotary drive assembly 400 drives the first rotating seat 510 to rotate. The external rotational force causes the connecting arm 522 connected to the first rotating seat 510 to twist, and overcomes the elastic force to cause the compression coil 521 to twist and deform, storing elastic potential energy. When the first rotating seat 510 is not subjected to any force, the energy is released, and the connecting arm 522 connected to the first rotating seat 510 returns to its initial position, causing the first rotating seat 510 to automatically reset. That is, under no applied force, the third elastic element 520 can keep the first rotating seat 510 in its initial position and / or, after the first rotating seat 510 is rotated by an external force, the third elastic element 520 can make it return to its initial position.

[0069] On the other hand, the third elastic element 520 has a compression motion function. Specifically, when the pusher 620 drives the first rotating seat 510 to separate from the second rotating seat 530, until the first rotating seat 510 squeezes the compression coil 521, the compression coil 521 is compressed and stored. After the buckle 200 is inserted into the opening 110, the buckle 200 pushes the pusher 620, so that the pusher 620 releases the first rotating seat 510 from its limiting position. At the same time, the third elastic element 520 begins to release energy, causing the first rotating seat 510 to move with the pusher 620, until the first rotating seat 510 and the second rotating seat 530 are reconnected.

[0070] To better understand the beneficial effects of the third elastic element 520, the following explanation will be provided using a practical application scenario. Figure 3 , Figure 9 , Figure 10 as well as Figure 15 In the electric unlocking application scenario, the buckle 200 is inserted into the opening 110 and locked with the hook 310. At this time, the pusher 620 is pressed by the buckle 200 against the first elastic member 610, and the first elastic member 610 stores energy. The user controls the rotary drive assembly 400, so that the protrusion in the first rotating seat 510 acts on the hook 310, and the third elastic member 520 twists and stores energy. When the hook 310 releases its restraint on the buckle 200 and unlocks, the first elastic member 610 releases energy, causing the pusher 620 to push the buckle 200 out. At the same time, the pusher 620 also drives the first rotating seat 510 to disengage from the second rotating seat 530, so that it is freed from the control of the rotary drive assembly 400. The third elastic member 520 also releases energy at this time, allowing the first rotating seat 510 to rotate and reset, thereby causing the hook 310 to return to the initial position where the buckle 200 is to be locked. During this process, the compression coil 521 in the third elastic element 520 is compressed and stored by the first rotating seat 510.

[0071] Reference Figure 4 , Figure 9 , Figure 10 as well as Figure 16When the buckle 200 is inserted into the opening, the buckle 200 and the latch 310 relock, simultaneously pushing the pusher 620 to repress the first elastic element 610. The compression coil 521 in the third elastic element 520 releases energy, causing the first rotating seat 510 to move along with the pusher 620 until it reconnects with the second rotating seat 530. This allows the user to repeat the process when needed, making it convenient and efficient.

[0072] Of course, there are many ways to reconnect the first rotating seat 510 and the second rotating seat 530. Besides the method described above where the third elastic element 520 drives the connection through elastic force, in embodiment two, two limiting steps 621 can be provided on the pusher, symmetrically arranged on both sides of the shoulder 512. The limiting steps 621 together define a receiving structure that limits the shoulder, and the movement of this receiving structure causes the first rotating seat 510 to move accordingly. Specifically, when the pusher 620 moves, the two limiting steps 621 can respectively abut against one side of the corresponding shoulder 512, thereby enabling the first rotating seat 510 and the second rotating seat 530 to connect and separate. Specifically, when the buckle 200 is inserted into the opening 110, the buckle 200 will drive the pusher 620, and then the pusher 620 will drive the first rotating seat 510 and the second rotating seat 530 to reconnect. In the third embodiment, it is a combination of the first and second embodiments, which further improves the stability and reliability of the connection and separation of the first rotating seat 510 and the second rotating seat 530.

[0073] Furthermore, there are multiple ways to achieve a configuration where the first rotating seat 510 can both rotate and slide. (See reference...) Figures 5 to 8 For example, in one embodiment, the second rotating seat 530 further includes a guide post, which is positioned towards the first rotating seat 510, and the first rotating seat 510 is fitted onto the guide post. This configuration allows the first rotating seat 510 to rotate and slide, and the guide post ensures the stability of the first rotating seat 510's movement. In another embodiment, a connecting post is provided in the mounting cavity, with its axis coinciding with the output axis of the rotary drive assembly 400. The connecting post is positioned on the side of the second rotating seat 530 away from the upper rotary drive assembly 400, and the connecting post is fitted onto the first rotating seat 510 to allow the first rotating seat 510 to rotate and slide.

[0074] Reference Figure 6 , Figure 7 as well as Figures 9 to 12In one embodiment, the electric trip unit 1000 has a self-locking structure 800, which includes a latch 810 disposed on the circumferential surface of the first rotating seat 510 and a locking tongue 820 disposed on the hook member 310. The latch 810 and the protrusion 511 are spaced apart on the rotation direction of the first rotating seat 510. The latch 810 is used to cooperate with the locking tongue 820 to lock the hook member 310. When locked, the latch 200 and the hook member 310 are kept in the locked position, improving the reliability of the electric trip unit 1000.

[0075] Reference Figure 3 , Figure 6 , Figure 11 as well as Figure 12 In one embodiment, the electric trip unit 1000 includes a manual unlocking component 700, which includes an unlocking key 710 movably mounted on the housing 100. The unlocking key 710 includes a button end 711 and a supporting end 712. The button end 711 is exposed on the housing 100, and the supporting end 712 is connected to the button end 711 and abuts against the side of the latch 310 facing the first rotating seat 510. Specifically, pressing the button end 711 moves the supporting end 712 to abut against the latch 310, holding the latch 310 and causing it to move until the latch 310 unlocks from the buckle 200. This design allows the automatic trip unit 1000 to have both electric and manual unlocking methods, allowing the user to choose the unlocking method according to actual needs, providing greater flexibility.

[0076] It is worth mentioning that by implementing the above embodiments, the electric trip unit 1000 is equipped with a manual tripping function. This manual function serves as a backup option and can be used when the electric function fails to operate properly or is unusable. For example, when the battery is depleted or tripping fails for other reasons, the user can use the manual function to disconnect the electric trip unit 1000 from the pet.

[0077] In one embodiment, the button end 711 is located on the side of the first rotating seat facing away from the latch member. One side of the supporting end 712 is connected to the button end 711, and the other side extends towards the latch member 310. A fourth elastic element 720 is installed on the side of the unlock button 710 facing the latch member 310 to store energy when the unlock button 710 moves towards the latch member 310. The fourth elastic element 720 is a spring, which automatically resets the unlock button 710. Specifically, when the unlock button 710 is applied, the fourth elastic element 720 compresses to store energy, and when the energy is released, it drives the unlock button 710 to reset. This configuration allows the unlock button 710 to automatically reset to its initial position, reducing operational complexity and making manual unlocking convenient and efficient. Furthermore, there are various ways and numbers of fourth elastic elements 720 can be provided. For example, one supporting end 712 and one fourth elastic element 720 can be provided. For example, two fourth elastic elements 720 and two supporting ends 712 can be set, with the first rotating seat 510 located between the two supporting ends 712, and the two fourth elastic elements 720 having corresponding supporting ends 712. With this design, when the two supporting ends 712 apply force to the hook 310, the hook 310 is subjected to more balanced force, which is conducive to the smooth movement of the hook 310.

[0078] Reference Figure 8 , Figure 11 and Figure 12 In one embodiment, the supporting end 712 has a first protrusion 513 on the side facing the first rotating seat 510, and a second protrusion 712a is provided on the circumferential surface of the first rotating seat 510. In the direction of the button end 711 towards the hook member 310, the first protrusion 513 abuts against the second protrusion 712a. Specifically, when the first protrusion 513 abuts against the second protrusion 712a, the first rotating seat 510 can rotate relative to the housing 100, thereby disengaging the locking port 811 from the locking tongue 820.

[0079] To better understand how the self-locking structure 800 achieves its self-locking effect in both electric and manual operation modes, further explanation is provided below using practical application scenarios. (Refer to...) Figure 9 and Figure 10 In the first scenario of electric operation, when the buckle 200 is inserted into the opening and locked with the latch 310, the buckle 200 pushes against the pusher 620. The third elastic element 520 drives the first rotating seat 510 to connect with the second rotating seat 530. Simultaneously, the latch 810 on the first rotating seat 510 and the latch 820 complete the locking. The user activates the rotation drive assembly 400, and the first rotating seat 510 rotates, causing the latch 810 to disengage from the latch 820 and release the self-locking. Subsequently, the latch 310 and the buckle 200 unlock, and the buckle 200 is pushed out from the opening 110 by the pusher 620. The first rotating seat 510 resets and disengages from the second rotating seat 530. (Refer to...) Figure 11 and Figure 12In the second manual operation scenario, when the buckle 200 is inserted into the opening 110 and locked with the latch 310, the buckle 200 pushes against the pusher 620. The third elastic element 520 drives the first rotating seat 510 and the second rotating seat 530 to connect. Simultaneously, the latch 810 on the first rotating seat 510 and the latch 820 complete the locking. When the user presses the unlock button 710, the second protrusion 712a on the holding end 712 of the unlock button 710 abuts against the first protrusion 513, causing the first rotating seat 510 to rotate. Thus, the latch 810 disengages from the latch 820 and releases the self-locking mechanism. Subsequently, the latch 310 is displaced by the holding end 712 of the unlock button 710, and the latch 310 and the buckle 200 are unlocked. The buckle 200 is pushed out from the opening 110 by the pusher 620.

[0080] It is evident that in both application scenarios, as long as the buckle 200 and the hook 310 cooperate, the internal structure of the electric release device 1000 can automatically lock, so that the buckle 200 and the hook 310 remain in a fixed relative position after locking. Thus, even if the electric release device 1000 is subjected to large shaking or strong external impact when leading a pet, the hook 310 can still keep the buckle 200 tightly locked, preventing accidental release and providing more reliable working performance.

[0081] In addition, to ensure smoother locking of the snap fastener 200 into the opening 110 and the hook 310, refer to... Figure 4 In one embodiment, the fastening part 311 includes an end face facing the opening 110 and a side face connected to the end face. A chamfer is provided between the end face and the side face. The chamfer can guide the fastening part 210 to move into the fastening part 311 so that the two are fastened more smoothly.

[0082] Secondly, embodiments of the present invention also provide a pet leash (not shown in the figures), including the electric release mechanism 1000 described in the above embodiments. In one embodiment, the pet leash further includes a buckle 200, a pet wearing accessory, a leash, and a handle. The buckle 200 has a fastening portion 210 and is inserted into the opening 110 of the electric release mechanism 1000; the pet wearing accessory is connected to the buckle 200; one end of the leash is connected to the housing 100 of the electric release mechanism 1000; the handle is connected to the other end of the leash, and the handle has a switch electrically connected to the rotation drive assembly 400 of the electric release mechanism 1000. Specifically, the user can control the electric release mechanism 1000 and the buckle 200 to automatically unlock and separate by operating the switch on the handle, making operation more convenient.

[0083] By implementing the above embodiments, users can remotely control the rotary drive component 400 to automatically trip the electric trip unit 1000, thus solving pain points in different application scenarios.

[0084] For example, during daily walks or returning home, there's no longer a need to bend over to unfasten the pet leash. Owners can easily detach the leash from their pet remotely, avoiding the inconvenience and discomfort of bending over. Another example is in the work of search and rescue dogs, military dogs, and drug-sniffing dogs, where time is often critical. Using this release device, users can detach the leash from the police dog in one second for rapid action or to respond to emergencies. Furthermore, in certain specific situations, this release device can ensure the pet's safety, such as when the pet or someone else accidentally pulls the leash and gets caught in an elevator door, or when the door suddenly closes and traps the leash as the pet is about to pass through. Another example is when a police dog encounters an obstacle where its leash is caught in an object during a search and rescue operation. All of these emergencies can increase the risk of injury to the pet. With the remote-controlled electric release device 1000, users can detach the leash from their pet in one second, ensuring the pet's safety and responding quickly to emergencies.

[0085] Pet accessories can be pet collars, pet harnesses, etc., and this embodiment does not limit them.

[0086] Furthermore, the connection between the pet wearer and the buckle 200 can be varied, including common B-ring or D-ring connections, or spring-loaded connections. This embodiment does not limit the specific connection method.

[0087] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of the present invention.

Claims

1. An electric release mechanism for use in pet leashes, characterized in that, include: The housing has an opening and a mounting cavity, the mounting cavity being connected to the outside of the housing through the opening; the opening is used to insert a buckle, the buckle having a fastening part. A fastening assembly is installed in the mounting cavity. The fastening assembly includes a hook that is movably disposed in the mounting cavity. The hook includes a fastening part that is used to cooperate with the fastening part to lock the buckle. An unlocking component is installed in the mounting cavity and located on one side of the hook. The unlocking component includes a first rotating seat, and a protrusion is provided on the circumferential surface of the first rotating seat. A rotary drive assembly is installed in the mounting cavity; the output end of the rotary drive assembly is connected to the first rotating seat; the rotary drive assembly is used to drive the first rotating seat to rotate, so that the protrusion can rotate to abut against the hook, thereby driving the fastening part to disengage from the fastening part. The pop-out component includes a first elastic member and a pusher member. The pusher member is installed in the mounting cavity and abuts against the buckle in the orientation of the opening. The first elastic member is connected to the pusher member. The first elastic member is used to release energy when the fastening part disengages from the fastening part and drive the pusher member to move toward the opening. The fastening assembly further includes a second elastic element installed in the mounting cavity. The second elastic element is connected to the hook element and is used to store energy when the protrusion abuts against the hook element. The unlocking component further includes a second rotating seat, which is mounted on the output end of the rotary drive component. The second rotating seat is mounted on the side of the first rotating seat away from the opening. The side of the first rotating seat facing the second rotating seat has a first protruding tooth, and the side of the second rotating seat facing the first rotating seat has a second protruding tooth. The first protruding tooth and the second protruding tooth mesh. The first rotating seat is connected to the output end of the rotary drive component through the second rotating seat. The circumferential surface of the first rotating seat has a shoulder, and the pusher has a limiting step on the side of the first rotating seat facing the pusher. The limiting step abuts against the side of the shoulder facing away from the opening.

2. The electric trip unit according to claim 1, characterized in that, The unlocking assembly includes a third elastic element, which includes a compression coil and two rotating arms. The compression coil is disposed on the side of the first rotating seat facing the opening to store energy when the pusher moves toward the opening. One of the rotating arms is fixed in the mounting cavity, and the other rotating arm is connected to the first rotating seat so that the third elastic element can store energy when the protrusion rotates toward the hook.

3. The electric trip unit according to claim 2, characterized in that, The electric trip unit has a self-locking structure, which includes a latch disposed on the circumferential surface of the first rotating seat and a locking tongue disposed on the hook. The latch and the protrusion are spaced apart on the rotation direction of the first rotating seat.

4. The electric trip unit according to any one of claims 1-3, characterized in that, The electric trip unit includes a manual unlocking component, which includes an unlocking key. The unlocking key is movably mounted on the housing. The unlocking key includes a button end and a supporting end. The button end is exposed on the housing, and the supporting end is connected to the button end and abuts against the side of the latching member facing the first rotating seat.

5. The electric trip unit according to claim 4, characterized in that, The button end is located on the side of the first rotating seat facing away from the hook member. One side of the abutting end is connected to the button end, and the other side extends toward the hook member. The unlock button is equipped with a fourth elastic element on the side facing the hook member to store energy when the unlock button moves toward the hook member.

6. A pet leash, characterized in that, include: The electric trip unit according to any one of claims 1-5.

7. The pet leash according to claim 6, characterized in that, The pet leash also includes: A snap fastener has a fastening part, and the snap fastener is inserted into the opening of the electric trip unit; A pet wearer that connects to the buckle; A traction rope, one end of which is connected to the housing of the electric release device; A handle is connected to the other end of the traction rope, and the handle is provided with a switch electrically connected to the rotary drive assembly of the electric release device.

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