Columnar detachable rope fastener

Abstract

The utility model discloses a columnar detachable rope fastener, which is applied to the technical field of rope length adjustment and comprises an outer cavity piece with a cavity, an inner extrusion piece connected in the cavity and a reset elastic piece connected between the outer cavity piece and the inner extrusion piece. The outer cavity piece and the inner extrusion piece are provided with two rope penetrating holes, the sides, facing the notch, of the two rope penetrating holes are provided with notches, the notches of the two rope penetrating holes are communicated with the notch, a rope penetrates into the overlapped area of the rope penetrating holes of the outer cavity piece and the inner extrusion piece, and the reset elastic piece is used for controlling the outer cavity piece and the inner extrusion piece to move oppositely so as to extrude the rope. The diameter of the notch is smaller than the diameter of the rope, and the direction of outward opening force borne by the rope in the using process is perpendicular to the direction of the notch. When the columnar detachable rope fastener is used, the rope is not easy to pop out from the notch automatically, and the rope fastener is not easy to fall off.

Description

Technical Field

[0001] The utility model relates to the technical field of rope length adjustment, in particular to a columnar detachable rope buckle. Background Art

[0002] Cord locks are common in daily life and are mostly used on clothing, such as sportswear, windbreakers and other clothing. In order to adjust the size of hats, sleeves, hems, etc., a combination of ropes and cord locks is usually used for adjustment.

[0003] At present, most of the cord locks on the market are integrated, that is, the outer cavity part B, the inner extrusion part A and the reset elastic part are formed in one piece. The cord locks are generally assembled together during the garment making process, such as Figure 1 However, as consumers become more aware of environmental protection, more and more products are being made removable and reusable. Garment factories also conduct needle detection tests before shipment. Existing metal products fixed to clothing can seriously affect needle detection. Removing metal parts or reassembling the product later can help the clothing pass needle detection better. At the same time, when machine washing clothing, the cord buckle can collide with the inner wall of the washing machine, causing the paint on the cord buckle to fall off. Removing the cord buckle before machine washing can better protect the product, which is why detachable cord buckles have emerged.

[0004] However, the detachable cord locks on the market are generally flat. When removing them from the rope, the cord lock needs to be disassembled, and the disassembled parts are easy to lose. In addition, the rope has outward tension during the pressing process, and the direction of the outward tension of the rope is the same as the direction of the notch. Figure 2 As shown, during use, the rope is likely to automatically pop out of the notch and the rope buckle is likely to fall off; conventional rope buckles are all structured by hitting the card points. For rope buckles with notches on the side, hitting them will cause the rope buckle to bend and deform.

[0005] In summary, how to effectively solve the problem that the rope of the existing detachable rope buckle is easy to fall out of the gap during use is an urgent problem that those skilled in the art need to solve. Utility Model Content

[0006] The utility model aims to provide a columnar detachable cord buckle, wherein the cord is not likely to automatically pop out from the notch during use, and the cord buckle is not likely to fall off.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] A cylindrical detachable rope buckle comprises an outer hollow cavity part having a cavity, an inner extrusion part connected to the cavity, and a reset elastic part connected between the outer hollow cavity part and the inner extrusion part, the outer hollow cavity part and the inner extrusion part having notches on their side walls, two rope threading holes on the outer hollow cavity part and the inner extrusion part, the two rope threading holes having notches on the side facing the notches, the notches of the two rope threading holes being connected to the notches, the rope passing through the overlapping area of ​​the rope threading holes of the outer hollow cavity part and the inner extrusion part, the reset elastic part being used to control the outer hollow cavity part and the inner extrusion part to move toward each other to squeeze the rope, the diameter of the notch being smaller than the diameter of the rope, and the direction of the external opening force applied to the rope during use being perpendicular to the direction of the notch.

[0009] Optionally, the notch of the outer cavity is expanded toward the outside, and the inner diameter is smaller than the diameter of the rope.

[0010] Optionally, the rope threading hole is provided with a rope-blocking wall on one side or both sides of the notch, which is contracted toward the notch, and the ends of the rope-blocking wall are rounded.

[0011] Optionally, the inner rope retaining walls of the two rope threading holes on the same component are connected as a whole and are T-shaped with the partition wall between the two rope threading holes. The inner rope retaining walls of the two rope threading holes on the same component are located inside the two outer rope retaining walls.

[0012] Optionally, when the rope threading holes of the outer cavity member and the inner extrusion member overlap, the outer rope retaining wall of the inner extrusion member is flush with the expanded notch of the outer cavity member.

[0013] Optionally, the inner end face of the inner extrusion member is provided with a clamping column, the end of the clamping column is connected to a clamping block, the bottom surface of the cavity of the outer hollow member is provided with a perforated hole adapted to the clamping block, the reset elastic member is connected to the clamping column, the clamping block and the perforated hole are rotated to align so that the clamping block can pass under the perforated hole, and the clamping block and the perforated hole are rotated to stagger so that the clamping block can be clamped on the bottom surface of the cavity.

[0014] Optionally, a slot is provided on the outer surface of the bottom of the cavity, and the slot is staggered with the perforation hole. When the block is inserted into the slot, the rope threading hole of the outer cavity part and the inner extrusion part are radially aligned.

[0015] Optionally, the perforated hole and the card slot are 90° apart, and the shapes of the card block, the perforated hole and the card slot cannot overlap with each other after being rotated 90 degrees through a center point.

[0016] Optionally, the card block, the perforated hole and the card slot are in the shape of a non-equilateral triangle.

[0017] Optionally, the outer hollow cavity has an accommodating cavity outside the bottom surface of the cavity.

[0018] The beneficial effect of the present invention is that the columnar detachable cord lock includes an outer cavity part, an inner extrusion part and a reset elastic part, and the outer cavity part and the inner extrusion part are connected by the reset elastic part. The notches and the openings on the side walls of the outer cavity part and the inner extrusion part are respectively connected, and the rope can pass through the notches and the notches into the overlapping area of ​​the rope threading holes of the outer cavity part and the inner extrusion part to achieve rope connection. The function of the reset elastic part is to control the relative movement of the outer cavity part and the inner extrusion part. When the inner extrusion part moves toward the bottom wall of the cavity, the overlapping area of ​​the rope threading hole of the inner extrusion part and the rope threading hole of the outer cavity part increases, allowing the rope to be released and the rope to easily enter or be pulled out of the two through holes. When the outer cavity part and the inner extrusion part move toward each other, the gap between the hole walls of the two through holes becomes smaller, and the outer cavity part and the inner extrusion part will squeeze and clamp the rope, thereby achieving fixation.

[0019] The diameter of the notch is smaller than the rope's diameter, ensuring that the rope is not easily pulled out when subjected to external force, preventing it from slipping out and falling off due to its large diameter. Furthermore, there is only one notch, and the two ropes must be pulled out through it one by one in sequence, reducing the risk of the ropes slipping out of the notch during use. This allows the cylindrical detachable rope buckle to more closely resemble the user experience of a non-detachable rope buckle. Furthermore, during use, the direction of the external force exerted on the rope is perpendicular to the direction of the notch, ensuring that when the rope is subjected to external force, the force forms a right angle with the direction of the notch. The external force exerted on the rope acts on the inner wall of the notch perpendicular to the rope threading hole. When pulling the rope out, a force consistent with the direction of the notch is required to overcome the obstruction of the inner wall of the rope threading hole, maximizing the use of the notch and the structure of the notch to secure the rope and prevent it from slipping.

[0020] The columnar detachable cord buckle provided by the utility model can not only realize the detachable connection between the cord buckle and the rope, prevent the paint of the cord buckle from being washed off by machine, improve the efficiency of needle detection of garments, and replace different cord buckles; it also realizes the effective fixation and quick release of the rope, ensuring that the cord buckle is not easy to pop out and fall off from the notch during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 Schematic diagram of a typical columnar cord lock in the prior art;

[0023] Figure 2 Schematic diagram of a typical flat detachable cord lock in the prior art;

[0024] Figure 3 This is a schematic structural diagram of a columnar detachable cord buckle provided in a specific embodiment of the present invention;

[0025] Figure 4 for Figure 1 The main view;

[0026] Figure 5 A schematic diagram of a card block passing through a perforated hole;

[0027] Figure 6 A schematic diagram showing the alignment and overlap of the rope threading holes of the inner extrusion member and the outer cavity member;

[0028] Figure 7 This is a schematic diagram of the card block being inserted into the card slot.

[0029] Reference numerals:

[0030] A-inner extrusion part; B-outer cavity part; 1-inner rope retaining wall; 2-rope threading hole, 3-clamping column; 4-clamping block; 5-outer rope retaining wall; 6-notch; 7-gap; 8-resetting elastic part; 9-clamping groove; 10-perforation hole. DETAILED DESCRIPTION

[0031] The core of the utility model is to provide a columnar detachable cord buckle, wherein the cord is not likely to automatically pop out from the notch during use, and the cord buckle is not likely to fall off.

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Please refer to Figures 3 to 7 , Figure 3 This is a schematic structural diagram of a columnar detachable cord buckle provided in a specific embodiment of the present invention; Figure 4 for Figure 1 The main view; Figure 5 A schematic diagram of a card block passing through a perforated hole; Figure 6 A schematic diagram showing the alignment and overlap of the rope threading holes of the inner extrusion member and the outer cavity member; Figure 7 This is a schematic diagram of the card block being inserted into the card slot.

[0034] In a specific embodiment, the columnar detachable rope buckle provided by the utility model includes an outer hollow cavity part B having a cavity, an inner extrusion part A connected to the cavity, and a reset elastic part 8 connected between the outer hollow cavity part B and the inner extrusion part A. A notch 6 is provided on the side walls of the outer hollow cavity part B and the inner extrusion part A. Two rope threading holes 2 are provided on the outer hollow cavity part B and the inner extrusion part A. The two rope threading holes 2 have a notch 7 on the side facing the notch 6. The notches 7 of the two rope threading holes 2 are connected to the notch 6. The rope passes through the overlapping area of ​​the rope threading holes 2 of the outer hollow cavity part B and the inner extrusion part A. The reset elastic part 8 is used to control the outer hollow cavity part B and the inner extrusion part A to move toward each other to squeeze the rope. The diameter of the notch 7 is smaller than the diameter of the rope. During use, the direction of the external opening force applied to the rope is perpendicular to the direction of the notch 6.

[0035] In the above structure, the cylindrical detachable cord lock is a mechanical device for securing and releasing a cord, comprising an outer hollow member B, an inner extrusion member A, and a return spring 8. The outer hollow member B and the inner extrusion member A are connected by the return spring 8, which controls the relative movement of the outer hollow member B and the inner extrusion member A to compress the cord.

[0036] The outer cavity B and the inner extrusion A have notches 6 on their sidewalls, and both are provided with two rope holes 2. These two rope holes 2 have notches 7 on the side facing the notches 6, and the notches 7 communicate with the notches 6, allowing a rope to pass through the notches 6 and 7 and into the overlapping area of ​​the rope holes 2 in the outer cavity B and the inner extrusion A, thus achieving a rope connection.

[0037] The function of the return spring 8 is to control the relative movement of the outer cavity member B and the inner extrusion member A, thereby compressing and releasing the rope. When the inner extrusion member A moves toward the cavity bottom wall, the overlapping area between the rope threading hole 2 of the inner extrusion member A and the rope threading hole 2 of the outer cavity member B increases, allowing the rope to be released. When the rope threading holes 2 of the outer cavity member B and the inner extrusion member A completely overlap, the notches 6 of the outer cavity member B and the inner extrusion member A overlap, allowing the rope to enter or be pulled out through the notches 7 and 6. In other words, the rope can be easily inserted into or pulled out of both through-holes.

[0038] When the outer hollow part B and the inner extrusion part A move toward each other, the inner extrusion part A moves in the opposite direction, and the gap between the walls of the two through holes becomes smaller. The outer hollow part B and the inner extrusion part A will squeeze the rope that passes through the overlapping area and jam the rope, thereby achieving fixation.

[0039] The diameter of the notch 7 is smaller than the diameter of the rope, ensuring that the rope is not easily pulled out when subjected to external force, preventing the rope from slipping out and falling off due to its excessive diameter. Furthermore, since there is only one notch 6, the two ropes must be pulled out through the notch 6 one by one in sequence, reducing the risk of the ropes slipping out of the notch 6 when pressed for use, making the cylindrical detachable rope buckle more similar to the user experience of a non-detachable rope buckle. At the same time, during use, the direction of the external force exerted on the rope is perpendicular to the direction of the notch 6, ensuring that when the rope is subjected to external force, the direction of the force forms a right angle with the direction of the notch 6. The external force exerted on the rope acts on the inner wall of the notch 7 perpendicular to the rope threading hole 2. When pulling the rope out, a force consistent with the direction of the notch 6 is required to overcome the obstruction of the inner wall of the rope threading hole 2, maximizing the use of the structure of the notches 6 and 7 to secure the rope and prevent it from slipping.

[0040] The columnar detachable cord buckle provided by the utility model can not only realize the detachable connection between the cord buckle and the rope, prevent the paint of the cord buckle from being washed off by machine, improve the efficiency of needle detection of ready-made clothes, and replace different cord buckles; it also realizes the effective fixation and quick release of the rope, ensuring that the cord buckle is not easy to pop out and fall off from the notch 6 during use.

[0041] On the basis of the above-mentioned specific embodiments, the notch 6 of the outer cavity B is expanded toward the outside, and the inner diameter is smaller than the diameter of the rope.

[0042] In a specific embodiment, the diameter of the notch 6 is smaller than the diameter of the rope, and the notch 6 of the outer cavity member B is designed to be an expanded notch, with the outer diameter being larger than the inner diameter.

[0043] The outer diameter is larger than the inner diameter, and when the rope enters the rope threading hole 2 from the notch 6, it is convenient for the rope to enter the outer part of the notch 6. The flared notch has a guiding effect on the rope, and the rope slides into the rope threading hole 2 along the inclined surface of the flared notch.

[0044] The inner diameter is smaller than the diameter of the rope, and the smaller inner diameter part will restrict the rope. When the rope is pulled out from the rope hole 2 through the notch 6, sufficient squeezing force needs to be applied to the rope to overcome the restrictive effect of the inner diameter on the rope before it can be pulled out. This can effectively prevent the rope from being easily popped out of the notch 6 due to external force disturbance.

[0045] In summary, the design of the flared notch takes into account the fixing strength of the rope buckle, effectively preventing it from falling off, and also takes into account the convenience of disassembly and connection, making the columnar detachable rope buckle more efficient and reliable in practical applications.

[0046] On the basis of the above-mentioned specific embodiments, the rope threading hole 2 is provided with a rope-blocking wall on one side or both sides of the notch 7, which shrinks toward the notch 7. The rope-blocking wall blocks the rope from escaping from the notch 7, thereby increasing the stability of the rope in the rope threading hole 2, making it difficult for the rope to escape from the hole even under high tension, thereby improving the safety and reliability of the rope buckle.

[0047] Based on the above-mentioned specific embodiments, the end of the rope retaining wall of the rope threading hole 2 is rounded. The rounded corner design enables the inner rope retaining wall 1 and the inner wall of the notch 7 to form a gradually smaller guide opening on the side close to the notch 6, which facilitates the guidance of the rope through the notch 7. In addition, it can also reduce the wear of the rope at the end, extend the service life of the rope, and make the operation smoother, reducing damage to the operator's hands.

[0048] Based on the above-mentioned specific embodiments, the inner rope retaining walls 1 of the two rope threading holes 2 on the same component are connected as one, which has a simple structure and is easy to process, provides better structural stability, and makes the rope more firmly fixed in the rope threading hole 2.

[0049] Preferably, the inner rope retaining wall 1 and the partition wall between the two rope threading holes 2 form a T-shaped structure. The T-shaped structure can enhance the strength of the rope threading holes 2 and also help guide the rope to correctly pass through the rope threading holes 2 during the rope threading process.

[0050] Preferably, the inner rope-blocking wall 1 of the two rope-threading holes 2 on the same component is located inside the two outer rope-blocking walls 5. When the rope passes through the gap 7, it is first blocked by the inner rope-blocking wall 1 and then by the outer rope-blocking wall 5. The double blocking increases the difficulty of the rope coming out, prevents the rope from easily coming out of the rope-threading hole 2 due to interference from external forces, and ensures that the rope is safely fixed under high tension. Moreover, when the rope is subjected to external force, the outer rope-blocking wall 5 bears the force first, while the inner rope-blocking wall 1 plays a role in assisting in fixing and protecting the rope.

[0051] On the basis of the above-mentioned specific embodiments, when the rope threading holes 2 of the outer hollow cavity part B and the inner extrusion part A coincide, the outer rope retaining wall 5 of the inner extrusion part A is flush with the flared notch of the outer hollow cavity part B, and the outer hollow cavity part B and the notch 6 of the inner extrusion part A are smoothly connected. The rope can smoothly pass through the notch 6 of the inner extrusion part A into the flared notch of the outer hollow cavity part B, or pass through the flared notch of the outer hollow cavity part B into the notch 6 of the inner extrusion part A, which helps the rope to move smoothly between the two components, reduces jamming, and improves the continuity of the rope through different components.

[0052] On the basis of the above-mentioned specific embodiments, the inner end face of the inner extrusion member A is provided with a clamping column 3, the end of the clamping column 3 is connected to a clamping block 4, the bottom surface of the cavity of the outer hollow member B is provided with a perforated hole 10 adapted to the clamping block 4, the reset elastic member 8 is connected to the clamping column 3, the clamping block 4 is rotated and aligned with the perforated hole 10 so that the clamping block 4 can pass through the bottom of the perforated hole 10, and the clamping block 4 is rotated and staggered with the perforated hole 10 so that the clamping block 4 can be stuck on the bottom surface of the cavity.

[0053] In a specific embodiment, a clamping column 3 and a clamping block 4 are provided on the inner end face of the inner extrusion part A, and a perforated hole 10 is provided on the bottom face of the cavity of the outer hollow cavity part B. The inner extrusion part A cooperates with the perforated hole 10 of the outer hollow cavity part B through the clamping column 3 and the clamping block 4. Specifically, the clamping block 4 passes through the perforated hole 10, thereby forming a mechanical connection with the outer hollow cavity part B to realize the functions of fixing and disassembly.

[0054] The depth to which the clamping block 4 penetrates the perforation 10 is adjustable, thereby adjusting the axial position of the rope threading hole 2 of the outer cavity part B and the inner extrusion part A. When the rope threading holes 2 of the outer cavity part B and the inner extrusion part A are axially aligned, the rope can be threaded out. When the rope threading holes 2 of the outer cavity part B and the inner extrusion part A are offset, the rope can be fixed. Specifically, when the inner extrusion part A moves toward the bottom wall of the cavity, the rope threading holes 2 of the inner extrusion part A and the rope threading holes 2 of the outer cavity part B overlap, allowing the rope to easily enter the two through holes. When the inner extrusion part A moves in the opposite direction, the overlapping area of ​​the rope threading holes 2 of the inner extrusion part A and the rope threading holes 2 of the outer cavity part B becomes smaller, and the inner walls of the rope threading holes 2 of the outer cavity part B and the inner extrusion part A clamp the rope. The reset elastic member 8 is connected to the clamping column 3 and provides elastic force to ensure that the inner walls of the rope threading holes 2 of the outer cavity part B and the inner extrusion part A compress the rope. Preferably, the end of the clamping column 3 close to the inner end surface of the inner extrusion part A is a cone, and the cross-sectional radius of the end close to the inner end surface of the inner extrusion part A is larger than the cross-sectional radius of the end away from the inner extrusion part A, thereby reducing the shaking of the reset elastic part 8 and making the relative movement of the outer cavity part B and the inner extrusion part A more stable.

[0055] The inner extrusion part A and the outer cavity part B are connected by rotation. When the outer cavity part B and the inner extrusion part A rotate relative to each other by an angle, the block 4 rotates and aligns with the perforation hole 10, allowing the block 4 to pass smoothly and be located below the perforation hole 10. The inner extrusion part A continues to rotate, and the block 4 and the perforation hole 10 are staggered by a set angle. The inner extrusion part A is released, and the block 4 is stuck on the bottom surface of the cavity, axially limiting the outer cavity part B and the inner extrusion part A to prevent the outer cavity part B and the inner extrusion part A from moving relative to each other and causing the rope to loosen. During this process, the rope holes 2 of the outer cavity part B and the inner extrusion part A have an overlapping area in the circumferential direction, and the overlapping area gradually increases until it completely overlaps, so that the rope can pass smoothly and be fixed in the overlapping area.

[0056] Based on this structure, the coordination of the latching column 3 and latching block 4 of the inner extrusion member A with the perforation 10 of the outer cavity member B, along with the elastic force of the return spring 8, enables the fast assembly and disassembly of the cord lock, while ensuring the smooth passage of the cord between the two components. The rotating connection between the inner extrusion member A and the outer cavity member B differs from the conventional cord lock's tapping method, effectively preventing the side notch 6 from bending and deforming the inner extrusion member A and the outer cavity member B due to impact.

[0057] Based on the above-mentioned specific embodiments, a slot 9 is provided on the outer surface of the bottom of the cavity, which is staggered with the perforation hole 10. When the block 4 is inserted into the slot 9, the rope threading hole 2 of the outer cavity part B and the inner extrusion part A are radially aligned.

[0058] In actual application, a slot 9 is provided on the outer surface of the bottom surface of the outer cavity B. The shape of the slot 9 is the same as the perforation hole 10, and they are separated by a set rotation angle. After the block 4 is rotated and aligned with the perforation hole 10, the inner extrusion part A continues to rotate by the set rotation angle, the block 4 is staggered with the perforation hole 10, the block 4 is aligned with the slot 9, the inner extrusion part A is released, and the block 4 is snapped into the slot 9. At this time, the rope holes 2 of the outer cavity B and the inner extrusion part A are radially aligned. Only the outer cavity B and the inner extrusion part A need to be pressed in the axial direction to adjust the alignment of the rope holes 2 of the two, thereby achieving rope fixation or release, which is easy to operate. In addition, the slot 9 is an inner groove. After the slot 9 is snapped into the slot 9, the slot 9 circumferentially limits the block 4, preventing the outer cavity B and the inner extrusion part A from rotating relative to each other, and the rope is firmly fixed.

[0059] Based on the above specific embodiments, the perforated hole 10 and the card slot 9 are separated by 90 degrees, and the shapes of the card block 4, the perforated hole 10 and the card slot 9 cannot be overlapped with each other after rotating 90 degrees through the center point.

[0060] In actual application, the block 4, the perforated hole 10 and the slot 9 provide a unique locking mechanism for the cylindrical detachable cord buckle. Since the perforated hole 10 and the slot 9 are 90° apart, this means that when the block 4 switches the connection position of the perforated hole 10 and the slot 9, the inner extrusion part A must be rotated precisely 90° to align the block 4 with the perforated hole 10, or to be inserted into the slot 9, ensuring that the connection locking and disassembly of the outer cavity part B and the inner extrusion part A require a specific rotation action, thereby increasing the accuracy of the operation.

[0061] The shapes of the clamping block 4, the perforated hole 10 and the clamping slot 9 are non-centrally symmetrical figures and do not have fourth-order rotational symmetry, which makes the inner extrusion part A and the outer hollow cavity part B more secure when they are locked, reducing the risk of accidental unlocking due to external forces; it enables the operator to intuitively identify the correct rotation direction of the inner extrusion part A and the outer hollow cavity part B, and prevents the inner extrusion part A from being rotated in the opposite direction or rotated improperly, resulting in the rope holes 2 of the two not being able to overlap and the connection failing; it can provide better structural stability, especially when subjected to forces in different directions, the asymmetric clamping block 4, the perforated hole 10 and the clamping slot 9 can better disperse and resist external forces.

[0062] Based on the above specific embodiments, the shapes of the clamping block 4 , the perforated hole 10 and the clamping slot 9 are non-equilateral triangles.

[0063] In practice, the shape of the block 4, perforation 10, and slot 9 can be a non-equilateral triangle. Due to the inconsistency of side lengths and angles, this lacks rotational symmetry and, therefore, cannot be aligned by rotating 90 degrees or any other angle through its center. The non-central symmetry of the triangle, combined with the fixed 90° rotation angle, allows the block 4, perforation 10, and slot 9 to be aligned in only one specific way, effectively preventing the inner extrusion A from rotating in the wrong direction and increasing operational accuracy. Furthermore, the triangle shape is simple and easy to manufacture.

[0064] Of course, the shapes of the card block 4, the perforated hole 10 and the card slot 9 can also be irregular polygons, five-pointed stars and other graphics, which are beautiful and improve the user experience.

[0065] In a preferred embodiment, the block 4 is a triangular snap-in structure with rounded corners, and the perforated hole 10 and the recessed slot 9 at the bottom are also triangular with rounded corners. The triangular snap-in structure passes through the perforated hole 10 of the outer cavity B and is rotated so that the triangular snap-in structure is aligned with the slot 9. Only when the block 4 of the inner extrusion part A and the slot 9 of the outer cavity B are aligned in the same triangular direction can the block 4 of the inner extrusion part A be fully engaged with the slot 9 of the outer cavity B, thereby aligning the notches 6 of the inner extrusion part A and the notches 6 of the outer cavity B. This ensures that the inner extrusion part A and the outer cavity B can be precisely aligned, thus avoiding the problem of incorrect assembly direction. The necessary elastic force is provided so that the inner extrusion part A and the outer cavity B can be locked together and remain fixed. This design not only ensures the stability of the cord lock during use, but also prevents the cord lock from falling apart after disassembly, making it easier to reassemble.

[0066] Based on the aforementioned specific embodiments, the outer cavity B has a receiving cavity on the outside of its bottom surface, which is used to protect and accommodate the clamping column 3 and clamping block 4 of the inner extrusion component A. When the inner extrusion component A and the outer cavity B are pressed relatively close together, the clamping column 3 and clamping block 4 move and are accommodated in the receiving cavity. This prevents them from protruding beyond the end surface of the outer cavity B, thus protecting them from damage or deformation. Because the clamping column 3 and clamping block 4 can be completely retracted into the outer cavity B whether pressed or not, the space occupied is reduced, making the overall design of the cord lock more compact and refined.

[0067] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0068] The above is a detailed introduction to the cylindrical detachable cord lock provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only intended to help understand the method and core concept of the present invention. It should be noted that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cylindrical detachable cord lock, characterized in that: The invention comprises an outer cavity part (B) having a cavity, an inner extrusion part (A) connected to the cavity, and a reset elastic part (8) connected between the outer cavity part (B) and the inner extrusion part (A), wherein the side walls of the outer cavity part (B) and the inner extrusion part (A) are provided with a notch (6), and the outer cavity part (B) and the inner extrusion part (A) are provided with two rope threading holes (2), the two rope threading holes (2) have a notch (7) on the side facing the notch (6), and the notches (7) of the two rope threading holes (2) are both connected to the notch (6), and the rope passes through the overlapping area of ​​the rope threading holes (2) of the outer cavity part (B) and the inner extrusion part (A), and the reset elastic part (8) is used to control the outer cavity part (B) and the inner extrusion part (A) to move toward each other to squeeze the rope, the diameter of the notch (7) is smaller than the diameter of the rope, and the direction of the external tensioning force applied to the rope during use is perpendicular to the direction of the notch (6).

2. The columnar detachable cord lock according to claim 1, characterized in that: The notch (6) of the outer cavity (B) is expanded toward the outside, and the inner diameter is smaller than the diameter of the rope.

3. The columnar detachable cord lock according to claim 1 or 2, characterized in that: The rope threading hole (2) is provided with a rope blocking wall on one side or both sides of the notch (7) that contracts toward the notch (7), and the end of the rope blocking wall is rounded.

4. The columnar detachable cord lock according to claim 3, characterized in that: The inner rope retaining walls (1) of the two rope threading holes (2) on the same component are connected as a whole and are T-shaped with the partition wall between the two rope threading holes (2). The inner rope retaining walls (1) of the two rope threading holes (2) on the same component are located inside the two outer rope retaining walls (5).

5. The columnar detachable cord lock according to claim 3, characterized in that: When the rope threading hole (2) of the outer cavity part (B) and the inner extrusion part (A) overlap, the outer rope retaining wall (5) of the inner extrusion part (A) is flush with the expanded notch of the outer cavity part (B).

6. The columnar detachable cord lock according to claim 1, characterized in that: The inner end surface of the inner extrusion member (A) is provided with a clamping column (3), the end of the clamping column (3) is connected to a clamping block (4), the bottom surface of the cavity of the outer cavity member (B) is provided with a perforated hole (10) adapted to the clamping block (4), the reset elastic member (8) is connected to the clamping column (3), the clamping block (4) and the perforated hole (10) are rotated and aligned to enable the clamping block (4) to pass under the perforated hole (10), and the clamping block (4) and the perforated hole (10) are rotated and staggered to enable the clamping block (4) to be clamped to the bottom surface of the cavity.

7. The columnar detachable cord lock according to claim 6, characterized in that: A slot (9) is provided on the outer surface of the bottom surface of the cavity, and the slot (9) is staggered with the perforation hole (10). When the block (4) is inserted into the slot (9), the rope threading hole (2) of the outer cavity part (B) and the inner extrusion part (A) are radially aligned.

8. The columnar detachable cord lock according to claim 7, characterized in that: The perforated hole (10) and the card slot (9) are separated by 90 degrees, and the shapes of the card block (4), the perforated hole (10) and the card slot (9) cannot overlap with each other after being rotated 90 degrees through a center point.

9. The columnar detachable cord lock according to claim 8, characterized in that: The shapes of the clamping block (4), the perforated hole (10) and the clamping slot (9) are non-equilateral triangles.

10. The columnar detachable cord lock according to claim 6, characterized in that: The outer cavity part (B) has a receiving cavity outside the bottom surface of the cavity.

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