Quick lacing tension adjustment device

Abstract

The application relates to a quick shoelace tightness adjusting device which comprises a base, a wheel box clamped on the upper end of the base, a winding wheel arranged in the wheel box, a rotating cover buckled on the upper end of the wheel box and matched with the wheel box in rotation, a transmission ring for transmission connection between the rotating cover and the winding wheel, the transmission ring comprising a ring body, an elastic clutch rod arranged on the upper part of the ring body, an elastic lock rod arranged on the upper part of the ring body and a ratchet ring arranged on the lower end face of the ring body, an annular retaining ring and an annular gear ring being arranged in the wheel box, the annular retaining ring being provided with an elastic rod matched with the ratchet ring, the elastic clutch rod having two states of mutual engagement and disengagement with the winding wheel, the elastic lock rod and the annular gear ring having two states of loose cooperation and locking cooperation, the rotating cover being provided with a guide groove and a limiting column, the limiting column being inserted between the elastic clutch rod and the elastic lock rod, and the elastic clutch rod being provided with a guide column inserted and slidingly matched with the guide groove. The quick shoelace tightness adjusting device is more convenient to use and has a long service life.

Description

Technical Field

[0001] This invention relates to the field of tie-up technology, and in particular to a quick tie tension adjustment device. Background Technology

[0002] Lacing devices are used in clothing, footwear, and other daily necessities to facilitate quick and easy winding and prevent loosening of laces. They are commonly used in footwear to tighten or loosen shoelaces. Existing lacing devices generally include a base, a collar connecting to the base, a winding wheel for winding the laces within the collar, and a ratchet ring on the collar. A ratchet wheel connected to a knob engages with this ratchet ring, allowing the knob to rotate in only one direction. An axial gear connector connects the winding wheel and the knob. When the knob is pressed down, the axial gear connector engages, and the winding wheel and knob rotate synchronously. When the knob is turned, the laces are wound into the winding wheel. When the knob is pulled out, the axial gear connector disengages, allowing the winding wheel to rotate freely. Pulling the laces loosens them. Users need to repeatedly pull up and press the knob before turning it to wind up the laces, which is inconvenient. Furthermore, long-term use can cause wear on the locking structure between the knob and the collar, leading to the knob disengaging from the collar when pulled out, and components inside the collar may also disengage. Summary of the Invention

[0003] To overcome the technical defects of the existing technology, the present invention provides a quick belt tension adjustment device, which is more convenient to use and has a longer service life.

[0004] The technical solution adopted in this invention is: a quick-release belt tension adjustment device, including a base, a wheel chamber snapped onto the upper end of the base, a winding wheel disposed in the wheel chamber, and a cap fastened to the upper end of the wheel chamber and rotating in cooperation with the wheel chamber. The wheel chamber has two cable passages. The cap and the winding wheel are connected by a transmission ring. The transmission ring includes a ring body, an elastic clutch rod disposed on the upper part of the ring body, an elastic locking rod disposed on the upper part of the ring body, and a ratchet ring disposed on the lower end face of the ring body. The wheel chamber is provided with an annular retaining ring and an annular toothed ring. The annular toothed ring is disposed above the annular retaining ring. The annular retaining ring has an elastic rod that meshes with the ratchet ring. The elastic clutch rod is located... The elastic locking rod is located on the outer ring of the ring body, and the elastic clutch rod has two states: engaging or disengaging with the winding wheel. The elastic locking rod and the annular toothed ring have two states: loose engagement or tight engagement. The cap has a guide groove and a limiting post inside. The limiting post is inserted between the elastic clutch rod and the elastic locking rod. The elastic clutch rod has a guide post that is inserted into and slidably engaged with the guide groove. The cap can guide the elastic clutch rod to engage or disengage with the winding wheel through the guide groove. At the same time, the limiting post drives the elastic locking rod to loosely engage or lock with the annular toothed ring.

[0005] Preferably, a plurality of elastic rods are provided near the outer edge of the annular retaining ring, the plurality of elastic rods are evenly arranged around the center of the annular retaining ring, one end of each elastic rod is fixed to the annular retaining ring and the other end is inclined upward.

[0006] Preferably, an annular metal sheet is snapped onto the top surface of the annular retaining ring, the inner ring of the annular metal sheet is snapped onto the annular retaining ring, and a plurality of elastic metal sheets are fixedly connected to the outer edge of the annular metal sheet. One end of the elastic metal sheet is fixedly connected to the annular metal sheet, while the other end is inclined upward. The elastic metal sheet constitutes the elastic rod.

[0007] Preferably, the winding wheel includes a winding portion and a locking portion coaxially arranged. The locking portion is connected to the top end of the winding portion. The diameter of the winding portion is larger than the inner diameter of the annular retaining ring. The locking portion passes through the annular retaining ring. The upper end of the locking portion is provided with an annular ratchet. The clutch wheel engages or disengages with the annular ratchet.

[0008] Preferably, the first end of the elastic clutch lever is fixedly connected to the ring body, and the second end of the elastic clutch lever is provided with ratchet teeth. The elastic clutch lever engages or disengages with the annular ratchet teeth on the winding reel through the ratchet teeth.

[0009] Preferably, the inner wall of the cap has multiple rotationally symmetrical guide grooves, the inner ring of the ring is connected to multiple elastic clutch rods, the number and position of the elastic clutch rods correspond to the number and position of the guide grooves, and the guide post is slidably fitted in the corresponding guide groove.

[0010] Preferably, the first end of the guide groove is close to the screw cap axis and is provided with a first limiting section at this end, the second end of the guide groove extends away from the screw cap axis and is provided with a second limiting section at this end, and the inner wall of the guide groove is provided with two arc-shaped protrusions, which are respectively located close to the first limiting section and the second limiting section.

[0011] Preferably, the ring body is provided with a plurality of elastic locking rods, the annular toothed ring is a wave-shaped toothed ring, and each elastic locking rod has a wave-shaped protrusion on its outer side that can engage with the wave-shaped toothed ring. The number and position of the plurality of elastic locking rods correspond to the number and position of the plurality of elastic clutch rods, and a limiting post is provided between each elastic clutch rod and the corresponding elastic locking rod.

[0012] Preferably, the bottom surface of the winding part of the winding wheel is provided with a blind hole, and a locking post is engaged in the blind hole. The side of the winding part is provided with two wire-passing holes communicating with the blind hole. The two wire-passing holes are respectively aligned with two wire-passing channels on the wheel chamber. The upper part of the locking post is provided with two guide grooves. The two guide grooves are arranged in parallel and opposite to each other on the side of the locking post. The two guide grooves correspond to the two wire-passing holes respectively.

[0013] Preferably, the upper end of the transmission ring is provided with a first alignment mark, the top of the wheel chamber is provided with a second alignment mark that aligns with the first alignment mark, the outer wall of the wheel chamber is provided with an alignment groove at the position corresponding to the second alignment mark, a snap-fit ​​ring is provided on the outer wall of the wheel chamber below the alignment groove, and the inner wall of the screw cap is provided with a snap-fit ​​head that engages with the snap-fit ​​ring.

[0014] The bottom of the winding section of the winding wheel is provided with a third alignment mark, the bottom of the wheel housing is provided with a limiting block extending in the direction of the wheel housing axis, the bottom of the limiting block is provided with a fourth alignment mark that is aligned with the third alignment mark, and the side end of the winding section is provided with a notch that is offset from the limiting block.

[0015] The beneficial effects of this invention are as follows: When using the quick-release belt tension adjustment device, there is no need to remove the cap. Rotating the cap clockwise drives the winding wheel to rotate via the transmission ring, tightening the belt. Rotating the cap counterclockwise by one angle prevents the ratchet ring on the lower end of the transmission ring from rotating due to the resistance of the elastic rod inside the wheel housing. The elastic clutch rod slides in the guide groove inside the cap, disengaging from the winding wheel, leaving it free and allowing the belt to loosen. Rotating the cap clockwise again by one angle causes the elastic clutch rod and winding wheel to re-engage under the force of the second elastic rod on the clutch wheel. Continuing to rotate the cap clockwise tightens the belt again. This rotational action achieves both belt tightening and loosening, making operation convenient, reducing cap wear, and preventing cap detachment due to the absence of a removal action, resulting in a longer service life. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the quick-release belt tension adjustment device in Embodiment 1.

[0017] Figure 2 This is an exploded view of the quick-release belt tension adjustment device in Embodiment 1.

[0018] Figure 3 This is a schematic diagram of the screw cap structure in Example 1.

[0019] Figure 4 This is a schematic diagram of the structure of the first embodiment of the wheel warehouse.

[0020] Figure 5 This is a top view of the first embodiment of the wheel warehouse.

[0021] Figure 6 This is a schematic diagram of the transmission ring in Example 1.

[0022] Figure 7 This is a schematic diagram of the winding reel in Example 1. Figure 1 .

[0023] Figure 8 This is a front view of the winding reel in Embodiment 1.

[0024] Figure 9 This is a bottom view of the winding reel in Example 1.

[0025] Figure 10 This is a schematic diagram of the combination of the locking post and the winding wheel in Example 1.

[0026] Figure 11 This is an assembly diagram of the winding wheel, retaining post, and wheel housing in Example 1.

[0027] Figure 12 This is a schematic diagram of the structure of the card column in Example 1.

[0028] Figure 13 This is the front view of the card post in Example 1.

[0029] Figure 14 This is a side view of the card post in Example 1.

[0030] Figure 15 This is an assembly diagram of the transmission ring, winding wheel, and wheel housing in Example 1.

[0031] Figure 16 This is a top view of the assembled transmission ring, winding wheel, and wheel housing in Example 1.

[0032] Figure 17 This is an assembly view of the cap and drive ring in Embodiment 1.

[0033] Figure 18 for Figure 13 The middle view is a cross-sectional view along the AA direction.

[0034] Figure 19 This is a schematic diagram of the wheel compartment structure in Example 2.

[0035] Figure 20 This is a schematic diagram of the structure of the annular metal sheet in Example 2.

[0036] Figure 21 This is a schematic diagram of the assembly of the wheel chamber and the annular metal plate in Example 2.

[0037] Explanation of reference numerals in the attached diagram: 1. Base;

[0038] 2. Wheel compartment; 201. Cable guide channel; 202. Annular retaining ring; 2021. Support ring; 203. Elastic rod; 2031. Toothed block; 204. Locking block; 205. Annular toothed ring; 206. Second alignment mark; 207. Alignment groove; 208. Snap-fit ​​ring; 209. Fourth alignment mark; 210. Limiting block;

[0039] 3. Transmission ring; 301. Ring body; 302. Ratchet ring; 303. Elastic clutch lever; 3031. Ratchet; 3032. Guide post; 3033. Limiting protrusion; 304. Elastic locking lever; 3041. Wavy protrusion; 306. First alignment mark;

[0040] 4. Winding wheel; 401. Winding part; 4011. Blind hole; 4012. Wire passage hole; 4013. Snap-fit ​​hole; 4014. Third alignment mark; 4015. Notch; 402. Locking part; 403. Snap-fit ​​post; 4031. Snap-fit ​​protrusion; 404. Guide groove;

[0041] 5. Screw cap; 501. Guide groove; 5011. First limiting section; 5012. Second limiting section; 5013. Arc-shaped protrusion; 502. Limiting post; 503. Clip;

[0042] 6. Annular metal sheet; 601. Elastic metal sheet; 602. Slot. Detailed Implementation

[0043] The present invention will be further described below with reference to the accompanying drawings:

[0044] Example 1

[0045] like Figures 1 to 18As shown, this embodiment provides a quick belt tension adjustment device, including a base 1, a wheel chamber 2 snapped onto the upper end of the base 1, a winding wheel 4 disposed in the wheel chamber 2, and a cap 5 fastened to the upper end of the wheel chamber 2 and rotatably engaged with the wheel chamber 2. The wheel chamber 2 has a wire passage 201. The cap 5 and the winding wheel 4 are connected by a transmission ring 3. The transmission ring 3 includes a ring body 301, an elastic clutch rod 303 disposed on the upper part of the ring body 301, an elastic locking rod 304 disposed on the upper part of the ring body 301, and a ratchet ring 302 disposed on the lower end face of the ring body 301. The wheel chamber 2 is provided with an annular retaining ring 202 and an annular toothed ring 205. The annular toothed ring 205 is disposed above the annular retaining ring 202. The annular retaining ring 202 is provided with an elastic rod 203 that meshes with the ratchet ring 302. The elastic clutch rod 303 is positioned on the wheel chamber 2. The inner ring of the ring body 301 has the elastic locking rod 304 positioned on its outer ring. The elastic clutch rod 303 has two states: engaging and disengaging with the winding wheel 4. The elastic locking rod 304 and the annular gear ring 205 have two states: a loose fit and a locked fit. The screw cap 5 has a guide groove 501 and a limiting post 502. The limiting post 502 is inserted between the elastic clutch rod 303 and the elastic locking rod 304. The elastic clutch rod 303 has a guide post 3032 that engages with and slides in the guide groove 501. The screw cap 5 can guide the elastic clutch rod 303 to engage or disengage with the winding wheel 4 through the guide groove 501. At the same time, the limiting post 502 drives the elastic locking rod 304 to loosen or lock the annular gear ring 205. The quick-release belt tension adjustment device of this embodiment has a compact mechanism and is easy to use.

[0046] In this embodiment, a plurality of elastic rods 203 are provided near the outer edge of the annular retaining ring 202. The plurality of elastic rods 203 are evenly arranged around the center of the annular retaining ring 202. The first end of each elastic rod 203 is fixed to the annular retaining ring 202, and its second end is inclined upward. The second end of the elastic rod 203 is provided with a toothed block 2031. The elastic rod 203 engages with the ratchet ring 302 on the transmission ring 3 through the toothed block 2031. Preferably, the toothed block 2031 is provided with two teeth that engage with the ratchet ring 302.

[0047] In this embodiment, the inner ring of the ring body 301 is connected to a plurality of elastic clutch rods 303. Preferably, the first end of the elastic clutch rod 303 is fixedly connected to the ring body 301, and the second end of the elastic clutch rod 303 is provided with ratchet teeth 3031. The winding wheel 4 includes a winding part 401 and a locking part 402 arranged coaxially. The locking part 402 is connected to the top end of the winding part 401. The diameter of the winding part 401 is larger than the inner diameter of the annular retaining ring 202, and the locking part 402 passes through the annular retaining ring 202. The upper end of the locking part 402 is provided with an annular ratchet tooth. The transmission ring 3 and the annular ratchet tooth have two states: engagement or disengagement. The ratchet teeth 3031 on the elastic clutch rod 303 and the annular ratchet teeth on the winding wheel 4 have two states: engagement or disengagement.

[0048] In this embodiment, a blind hole 4011 is provided on the bottom surface of the winding part 401 of the winding wheel 4. A locking post 403 is engaged in the blind hole 4011. Two wire-passing holes 4012 communicating with the blind hole 4011 are provided on the side of the winding part 401. When fixing the strap to the winding wheel 4, the strap is passed through the wire-passing hole 4012 and inserted into the blind hole 4011. The locking post 403 is then engaged into the blind hole 4011, and the locking post presses the strap against the inner wall of the blind hole 4011, thus achieving the fixation of the strap.

[0049] In this embodiment, the upper part of the locking post 403 is provided with two guide grooves 404. The two guide grooves 404 are arranged in parallel and opposite to each other on the side of the locking post 403. The two guide grooves 404 correspond to the two wire holes 4012 respectively. When the locking post 403 is fully engaged in the blind hole 4011, the guide grooves 404 are positioned above the wire holes 4012. When fixing the two ends of the strap and the winding wheel 4, the locking post 403 is first pushed into the blind hole 4011 so that the two guide grooves 404 and the two wire holes 4012 are at the same horizontal level. Then, the two ends of the strap are respectively passed through the two wire holes 4012 and inserted into the two guide grooves 404. Finally, the locking post 403 is pushed so that the locking post 403 is engaged in the blind hole 4011. During this process, the two ends of the strap are also pushed into the depth of the blind hole 4011 and pressed into the blind hole 4011. Preferably, the side wall of the locking post 403 is provided with two oppositely arranged locking protrusions 4031, and the winding part 401 is provided with two locking holes 4013 at the corresponding position. The two locking protrusions 4031 are respectively locked into the two locking holes 4013, so as to realize the locking engagement between the locking post 403 and the blind hole 4011.

[0050] In this embodiment, the inner wall of the cap 5 has multiple rotationally symmetrical guide grooves 501. The inner ring of the ring 301 is connected to multiple elastic clutch rods 303. The number and position of the elastic clutch rods 303 correspond to the number and position of the guide grooves 501. The guide post 3032 is slidably fitted within the corresponding guide groove 501. Preferably, the first end of the guide groove 501 is close to the axis of the cap 5 and has a first limiting section 5011. The second end of the guide groove 501 extends away from the axis of the cap 5 and has a second limiting section 5012. When the cap 5 rotates clockwise, the guide post 3032 of the transmission ring 3 abuts against the first limiting section 5011 of the guide groove 501, and the cap 5 drives the winding wheel 4 to rotate via the transmission ring 3. When the cap 5 rotates counterclockwise, due to the cooperation between the ratchet ring 302 on the transmission ring 3 and the elastic rod 203 on the wheel chamber 2, the cap 5 cannot be driven to rotate by the transmission ring 3. However, the cap 5 can... By rotating, the guide post 3032 on the elastic clutch lever 303 slides within the guide groove 501. Guided by the guide groove 501, the ratchet 3031 on the elastic clutch lever 303 on the transmission ring 3 disengages from the annular ratchet of the winding wheel 4. At this time, the guide post 3032 abuts against the second limiting section 5012, and the winding wheel 4 can rotate freely. The inner wall of the guide groove 501 is provided with two arc-shaped protrusions 5013, which are respectively close to the first limiting section. The first limiting segment 5011 and the second limiting segment 5012 are provided. The two arc-shaped protrusions 5013 can restrict the position of the guide post 3032. The arc-shaped protrusions 5013 near the second limiting segment 5012 can prevent the cap 5 from rotating clockwise after being turned counterclockwise by an angle and then released, so that the winding wheel 4 can fully prevent the tie from loosening. With a little force from the user, the guide post 3032 can be disengaged from the first limiting segment 5011 or the second limiting segment 5012 and slide in the middle of the guide groove 501.

[0051] In this embodiment, the ring body 301 is provided with a plurality of elastic locking rods 304, and the annular toothed ring 205 is a wavy toothed ring. Each elastic locking rod 304 has a wavy protrusion 3041 on its outer side that can engage with the wavy toothed ring. The number and position of the plurality of elastic locking rods 304 correspond to the number and position of the plurality of elastic clutch rods 303. Each elastic clutch rod 303 and the corresponding elastic locking rod 304 are provided with a limiting post 502. When the guide post 303... 2. When the elastic clutch lever 303 and the locking part 402 are disengaged, the elastic clutch lever 303 is deformed. Under its own elastic force, the guide post 3032 on it abuts against the second limiting section 5012. When the user tightens the belt and rotates the cap 5 clockwise, the elastic clutch lever 303 has a certain probability of still abutting against the second limiting section 5012 under its own elastic force. At this time, the cap 5 drives the transmission ring 3 to rotate, but the transmission... When the rotating ring 3 is not engaged with the winding wheel 4, the cap 5 and the transmission ring 3 can only rotate freely. This embodiment avoids this situation by setting an elastic locking rod 304. When the guide post 3032 slides from the first limiting section 5011 to the second limiting section 5012, the limiting post 502 will gradually push the elastic locking rod 304 outward. When the guide post 3032 is engaged with the second limiting section 5012, the wavy protrusion 3041 on the elastic locking rod 304 and the annular toothed ring 205 in the wheel chamber 2 are tightly engaged. When the drive ring 3 and the wheel chamber 2 are engaged, the drive ring 3 and the wheel chamber 2 cannot rotate relative to each other. When the cap 5 is rotated clockwise, the guide post 3032 can slide smoothly out of the second limiting section 5012 and slide towards the first limiting section 5011. The elastic clutch rod 303 and the winding wheel 4 engage. At this time, the limiting post 502 no longer pushes against the elastic locking rod 304, and the drive ring 3 can rotate smoothly in the wheel chamber 2. The cap 5 can then drive the winding wheel 4 to rotate through the drive ring 3 for winding operations. Preferably, the outer side of the elastic clutch rod 303 is provided with a limiting protrusion 3033 that cooperates with the limiting post 502. When the guide post 3032 is placed in the first limiting section 5011, the limiting protrusion 3033 abuts against one side of the limiting post 502, so that the cap 5 cannot be easily rotated and the strap can become loose.

[0052] In this embodiment, the inner edge of the annular retaining ring 202 is connected to a support ring 2021. The lower end face of the support ring 2021 is flush with the lower end face of the annular retaining ring 202. The upper end of the support ring 2021 extends upward and abuts against the lower end of the elastic clutch rod 303. The support ring 2021 provides support. When the guide post 3032 on the elastic clutch rod 303 slides along the guide groove 501, the support ring 2021 holds the elastic clutch rod 303 in place, preventing the elastic clutch rod 303 from disengaging from the guide groove 501. The limiting post 502 can prevent the elastic clutch rod 303 from deflecting outward and disengaging from the guide groove 501 when the guide post 3032 slides in the guide groove 501.

[0053] In this embodiment, the upper end of the ring body 301 of the transmission ring 3 is provided with a first alignment mark 306, the top end of the wheel chamber 2 is provided with a second alignment mark 206, the outer wall of the wheel chamber 2 is provided with an alignment groove 207 corresponding to the second alignment mark 206, a snap-fit ​​ring 208 is provided on the outer wall of the wheel chamber 2 below the alignment groove 207, and the inner wall of the screw cap 5 is provided with a snap-fit ​​head 503 that engages with the snap-fit ​​ring 208. In this embodiment, when assembling the quick-release belt tension adjustment device, when the transmission ring 3 is placed into the wheel chamber 2, the first alignment mark 306 and the second alignment mark 206 need to be aligned. Then, when assembling the screw cap 5, the snap-fit ​​head 503 inside the screw cap 5 is slid into the alignment groove 207 on the wheel chamber 2. Guided by 07, the locking head 503 engages with the lower end face of the locking ring 208. By aligning the first alignment mark 306, the second alignment mark 206, the alignment groove 207, and the locking head 503, the accurate assembly of the wheel chamber 2, the transmission ring 3, and the cap 5 can be guaranteed. Specifically, the alignment of the first alignment mark 306 and the second alignment mark 206 ensures the meshing of the ratchet ring 302 on the transmission ring 3 and the toothed block 2031 in the wheel chamber 2. The alignment of the alignment groove 207 and the locking head 503 ensures that when the cap 5 and the locking piece of the wheel chamber 2 are engaged, the guide post 3032 in the wheel chamber 2 is accurately inserted between the elastic clutch rod 303 and the elastic retraction rod of the transmission ring 3, and the guide post 3032 on the elastic clutch rod 303 is accurately inserted into the guide groove 501 in the cap 5.

[0054] In this embodiment, the bottom of the winding portion 401 of the winding wheel 4 is provided with a third alignment mark 4014, the bottom end of the wheel chamber 2 is provided with a limiting block 210 extending in the direction of the wheel chamber 2 axis, the bottom end of the limiting block 210 is provided with a fourth alignment mark 209 that cooperates with the third alignment mark 4014, and the side end of the winding portion 401 is provided with a notch 4015 that cooperates with the limiting block 210. When assembling the winding wheel 4, the notch 4015 and the limiting block 210 are aligned, and then the winding wheel 4 is pushed into the wheel chamber 2, and then rotated. The winding wheel 4 is moved so that the third alignment mark 4014 on the winding wheel 4 and the fourth alignment mark 209 on the wheel chamber 2 are aligned. The notch 4015 and the limiting block 210 are staggered. The limiting block 210 can prevent the winding wheel 4 from falling out of the wheel chamber 2 during assembly. At the same time, when the third alignment mark 4014 and the fourth alignment mark 209 are aligned, the two wire passage holes 4012 on the winding wheel 4 are aligned with the two wire passage channels 201 on the wheel chamber 2, so as to facilitate the belt to enter the blind hole 4011 on the winding wheel 4 through the wire passage channel 201.

[0055] In this embodiment, the bidirectional rotation control belt tension adjuster does not require removing the cap 5. Simply rotate the cap 5 clockwise to tighten the belt. Rotating the cap 5 counterclockwise by one angle disengages the transmission ring 3 from the winding wheel 4, leaving the winding wheel 4 in a free state, thus loosening the tightened belt. Rotating the cap 5 clockwise again by one angle causes the elastic clutch rod 303 on the transmission ring 3 to re-engage with the winding wheel 4. Continuing to rotate the cap 5 clockwise will tighten the belt again.

[0056] Example 2

[0057] The difference between this embodiment and Embodiment 1 lies only in that: an annular metal piece 6 is snapped onto the top surface of the annular retaining ring 202, the inner ring of the annular metal piece 6 is snapped onto the annular retaining ring 202, and multiple elastic metal pieces 601 are fixedly connected to the outer edge of the annular metal piece 6. One end of the elastic metal piece 601 is fixedly connected to the annular metal piece 6, while the other end is inclined upwards. The elastic metal piece 601 constitutes the elastic rod 203. The inner ring of the annular metal piece 6 is provided with multiple slots 602, and the top surface of the annular retaining ring 202 is provided with multiple locking blocks 204. The multiple locking blocks 204 are snapped into the multiple slots 602, such as... Figures 19 to 21 As shown. The advantage of this embodiment is that the elastic metal sheet 601 has better toughness and a longer service life.

[0058] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A quick-release belt tension adjustment device, characterized in that: The device includes a base, a wheel chamber that snaps onto the upper end of the base, a winding wheel inside the wheel chamber, and a cap that engages with the upper end of the wheel chamber and rotates with it. The wheel chamber has two cable passages. The cap and the winding wheel are connected by a transmission ring. The transmission ring includes a ring body, an elastic clutch rod on the upper part of the ring body, an elastic locking rod on the upper part of the ring body, and a ratchet ring on the lower end face of the ring body. The wheel chamber contains an annular retaining ring and an annular toothed ring. The annular toothed ring is positioned above the annular retaining ring. The annular retaining ring has an elastic rod that meshes with the ratchet ring. The elastic clutch rod is located within the inner ring of the ring body. The locking rod is located on the outer ring of the ring body. The elastic clutch rod has two states: engaging with the winding wheel and disengaging. The elastic locking rod and the annular toothed ring have two states: loose engagement and tight engagement. The cap is provided with a guide groove and a limiting post. The limiting post is inserted between the elastic clutch rod and the elastic locking rod. The elastic clutch rod is provided with a guide post that is inserted into and slidably engaged with the guide groove. The cap can guide the elastic clutch rod to engage or disengage with the winding wheel through the guide groove. At the same time, the limiting post drives the elastic locking rod to loosely engage or lock with the annular toothed ring. The upper end of the transmission ring is provided with a first alignment mark, the top of the wheel chamber is provided with a second alignment mark aligned with the first alignment mark, the bottom of the winding part of the winding wheel is provided with a third alignment mark, the bottom of the wheel chamber is provided with a limiting block extending towards the wheel chamber axis, the bottom of the limiting block is provided with a fourth alignment mark aligned with the third alignment mark, and the side end of the winding part is provided with a notch offset from the limiting block.

2. The quick-release belt tension adjustment device according to claim 1, characterized in that: The annular retaining ring has a plurality of elastic rods near its outer edge. The plurality of elastic rods are evenly arranged around the center of the annular retaining ring, with one end of each elastic rod fixed to the annular retaining ring and the other end inclined upward.

3. The quick-release belt tension adjustment device according to claim 1, characterized in that: The top surface of the annular retaining ring is fitted with an annular metal sheet, the inner ring of the annular metal sheet is fitted onto the annular retaining ring, and multiple elastic metal sheets are fixedly connected to the outer edge of the annular metal sheet. One end of the elastic metal sheet is fixedly connected to the annular metal sheet, while the other end is inclined upward. The elastic metal sheet constitutes the elastic rod.

4. The quick-release belt tension adjustment device according to claim 1, characterized in that: The winding wheel includes a winding part and a locking part arranged coaxially. The locking part is connected to the top end of the winding part. The diameter of the winding part is larger than the inner diameter of the annular retaining ring. The locking part passes through the annular retaining ring. The upper end of the locking part is provided with an annular ratchet. The clutch rod engages or disengages with the annular ratchet.

5. The quick-release belt tension adjustment device according to claim 4, characterized in that: The first end of the elastic clutch lever is fixedly connected to the ring body, and the second end of the elastic clutch lever is provided with ratchet teeth. The elastic clutch lever engages or disengages with the annular ratchet teeth on the winding wheel through the ratchet teeth.

6. The quick-release belt tension adjustment device according to claim 5, characterized in that: The inner wall of the cap has multiple rotationally symmetrical guide grooves, and the inner ring of the ring is connected to multiple elastic clutch rods. The number and position of the elastic clutch rods correspond to the number and position of the guide grooves, and the guide post slides in the corresponding guide groove.

7. The quick-release belt tension adjustment device according to claim 6, characterized in that: The first end of the guide groove is close to the screw cap axis and is provided with a first limiting section. The second end of the guide groove extends away from the screw cap axis and is provided with a second limiting section. The inner wall of the guide groove is provided with two arc-shaped protrusions, which are respectively located close to the first limiting section and the second limiting section.

8. The quick-release belt tension adjustment device according to claim 5, characterized in that: The ring body is provided with multiple elastic locking rods, and the annular toothed ring is a wavy toothed ring. Each elastic locking rod has a wavy protrusion on its outer side that can engage with the wavy toothed ring. The number and position of the multiple elastic locking rods correspond to the number and position of the multiple elastic clutch rods. Each elastic clutch rod and its corresponding elastic locking rod are provided with a limiting post.

9. The quick-release belt tension adjustment device according to claim 4, characterized in that: The bottom surface of the winding part of the winding wheel is provided with a blind hole, and a locking post is engaged in the blind hole. Two wire-passing holes communicating with the blind hole are provided on the side of the winding part. The two wire-passing holes are respectively aligned with two wire-passing channels on the wheel chamber. The upper part of the locking post is provided with two guide grooves. The two guide grooves are arranged in parallel and opposite to each other on the side of the locking post. The two guide grooves correspond to the two wire-passing holes respectively.

10. The quick-release belt tension adjustment device according to claim 1, characterized in that: The outer wall of the wheel well is provided with an alignment groove at the position corresponding to the second alignment mark. A snap ring is provided on the outer wall of the wheel well below the alignment groove. The inner wall of the screw cap is provided with a snap head that engages with the snap ring.

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