Key chain convenient to use

Abstract

The utility model relates to a key chain convenient to use, which comprises a key chain seat, a first through hole is arranged on the key chain seat, a first split ring is movably mounted in the first through hole, the width of a notch of the first split ring is smaller than the length of the first through hole, and two ends of the first split ring are correspondingly positioned on two sides in the first through hole. The hole wall of the first through hole is provided with a limiting piece which can deform elastically and is partially located in the notch of the first split ring, and a limiting piece through hole or gap with the width smaller than the thickness of the first split ring is formed in the limiting piece or between the limiting piece and the hole wall of the first through hole. A second through hole is formed in the key chain seat; the limiting piece is mounted in the second through hole; the key chain seat comprises an upper rotating seat and a lower rotating seat which are both provided with first through holes, the second through holes are formed in the upper rotating seat and / or the lower rotating seat, and the first opening ring is installed in the first through holes with the second through holes formed in the hole walls. According to the key ring, the key can be conveniently disassembled and assembled, and damage to the key ring or a user is avoided.

Description

Technical Field

[0001] The utility model relates to the field of keychains, in particular to a keychain that is convenient to use. Background Technique

[0002] At present, most keychains disassemble keys through a spiral key ring. However, since this type of spiral key ring needs to prevent the keys from falling, the rings need to be in close contact with each other. When disassembling and assembling the keys, one end of the key ring needs to be spread apart and then the key is inserted into the spread end, and then the key is rotated to insert the key into the key ring. Such disassembly and assembly operations are relatively inconvenient. Sometimes, the spiral key ring will be deformed after being spread apart, causing the end of the key ring to be exposed, which not only causes damage to the keychain but also poses a potential injury to the user during use. Content of the Utility Model

[0003] Aiming at the existing deficiencies, the utility model provides a keychain that is convenient to use.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a keychain that is convenient to use, including a keychain seat. A first through hole is provided on the keychain seat. A first split ring is movably installed in the first through hole, and the width of the notch of the first split ring is smaller than the length of the first through hole. The two ends of the first split ring are correspondingly located on both sides inside the first through hole. An elastic deformable limiting member with a part located in the notch of the first split ring is provided on the hole wall of the first through hole. A limiting member through hole or gap with a width smaller than the thickness of the first split ring is provided on the limiting member or between the limiting member and the hole wall of the first through hole; a second through hole with an axis perpendicular to the axis of the first through hole is provided on the keychain seat on the hole wall of the first through hole; the limiting member is installed in the second through hole and has a part extending into the first through hole, and a gap with a distance smaller than the thickness of the first split ring is provided between the part of the limiting member extending into the first through hole and the opposite hole wall of the first through hole; the keychain seat includes an upper rotating seat and a lower rotating seat that are rotatably connected to each other. First through holes are provided on both the upper rotating seat and the lower rotating seat. The second through hole is provided on the upper rotating seat and / or the lower rotating seat. The first split ring is installed in the first through hole with the second through hole provided on its hole wall.

[0005] Preferably, a key ring for wearing on the wrist is further provided on the keychain seat and is spaced from the first through hole.

[0006] Preferably, the keychain seat and the key ring are integrally formed.

[0007] Preferably, second through holes are provided on both the upper rotating seat and the lower rotating seat, a limiting member is installed in each second through hole, the first opening ring is installed in the first through hole of any one of the upper rotating seat and the lower rotating seat, and a hanging member or a second opening ring is installed in the first through hole of the other one.

[0008] Preferably, a hanging member opening ring is provided on the hanging member, the width of the notch of the hanging member opening ring is smaller than the length of the first through hole, both ends of the hanging member opening ring are correspondingly located on both sides inside the first through hole, and the thickness of the hanging member opening ring is greater than the width of the gap.

[0009] Preferably, rotating seat through holes are provided on the opposite surfaces of the upper rotating seat and the lower rotating seat, a rotating shaft having a T-shaped structure is installed in the rotating seat through hole of the upper rotating seat or the lower rotating seat by interference fit, and the lower rotating seat or the upper rotating seat is rotatably sleeved on the rotating shaft.

[0010] Preferably, a clamping groove engaged with the edge of the second through hole is provided on the limiting member, and the lower part of the limiting member is in an inverted conical shape.

[0011] The beneficial effects of the present utility model are as follows: in this utility model, the first opening ring is movably installed in the first through hole of the key chain seat. When disassembling and assembling the key, rotate the first opening ring so that its notch turns out of the first through hole, and then the key can be disassembled and assembled very conveniently. After the disassembly and assembly are completed, rotate the first opening ring in the reverse direction to hide the notch of the first opening ring in the first through hole, ensuring the safety during use and preventing deformation and damage of the key chain. The elastic deformation of the limiting member can not only expand the through hole or gap of the limiting member to facilitate the rotation of the first opening ring when the notch of the first opening ring turns out of the first through hole, but also block the notch of the first opening ring from turning out of the first through hole during normal use. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of a cross-section of the first embodiment of the present utility model;

[0013] Figure 2 is the first embodiment of the present utility model Figure 1 an enlarged schematic structural diagram of A in;

[0014] Figure 3 is a schematic structural diagram of the first embodiment of the present utility model;

[0015] Figure 4 is a schematic structural diagram of the first embodiment of the present utility model after removing the first opening ring;

[0016] Figure 5 is a schematic structural diagram of the second embodiment of the present utility model;

[0017] Figure 6It is a schematic exploded view of the second embodiment of the present utility model;

[0018] Figure 7 It is a schematic sectional view of the second embodiment of the present utility model;

[0019] Names and serial numbers of components in the figure: 1 - key ring seat, 10 - first through hole, 11 - second through hole, 12 - upper rotating seat, 13 - lower rotating seat, 120 - rotating seat through hole, 121 - rotating shaft, 2 - first open ring, 3 - limiting member, 30 - limiting member through hole, 31 - gap, 32 - clamping groove, 4 - bracelet, 5 - second open ring. Detailed implementation manners

[0020] In order to more clearly illustrate the purpose, technical solutions and advantages of the embodiments of the present utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. The description is clear and complete. Obviously, the described embodiments are partial embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present utility model. In addition, the directional terms mentioned in the present utility model, for example, "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., are only references to the directions in the attached drawings. The directional terms used are for better and clearer explanation and understanding of the present utility model, rather than indicating or implying the orientation that the present utility model must have. Therefore, it cannot be understood as a limitation to the present utility model.

[0021] The embodiments of the present utility model are as follows Figures 1 to 7As shown in the figure, a convenient keychain includes a keychain base 1. According to different situations, the keychain base 1 can be made of hard materials, such as metal materials like stainless steel, or soft materials, such as rubber. A first through hole 10 is provided on the keychain base 1. The first through hole 10 is provided on the side wall of the keychain base 1. A first split ring 2 is movably installed in the first through hole 10, and the width of the gap of the first split ring 2 is less than the length of the first through hole 10. If the first split ring 2 is selected as a circular split ring, the circular structure facilitates its rotation in the first through hole 10. The two ends of the first split ring 2 are correspondingly located on both sides inside the first through hole 10. A split ring means that there is a gap on the ring-shaped part. The left end of the first split ring 2 is located on the left side inside the first through hole 10, and the right end of the first split ring 2 is located on the right side inside the first through hole 10. The width of the gap of the first split ring 2 is less than the length of the first through hole 10, which ensures that both ends of the first split ring 2 can be located inside the first through hole 10, preventing the first split ring 2 from falling off the keychain base 1 during normal use. The movement of the first split ring 2 inside the first through hole 10 means that the first split ring 2 can rotate along the first through hole 10. By rotating the first split ring 2, the gap of the first split ring 2 can be rotated out of or into the first through hole 10. When the gap of the first split ring 2 is rotated out of the first through hole 10, keys can be easily disassembled and assembled on the first split ring 2. When the gap of the first split ring 2 is rotated into the first through hole 10, the gap is hidden, preventing the keys from falling off the first split ring 2. During actual use, first rotate the first split ring 2 to make its gap rotate out of the first through hole 10, then disassemble and assemble the keys on the first split ring 2. After completion, rotate the first split ring 2 in the opposite direction to hide the gap of the first split ring 2 in the first through hole 10. Such a structure is simpler, more convenient for disassembly and assembly, and will not cause deformation or damage to the keychain. A limiting member 3 that can elastically deform and has a part located in the gap of the first split ring 2 is provided on the hole wall of the first through hole 10. A limiting member through hole 30 or a gap 31 with a width less than the thickness of the first split ring 2 is provided on the limiting member 3 or between the limiting member 3 and the hole wall of the first through hole 10. A part of the limiting member 3 is located in the gap of the first split ring 2. When the gap of the first split ring 2 is rotated out, one end of the first split ring 2 will press against the position of the limiting member through hole 30 or the gap 31 and squeeze the limiting member 3 along the rotation direction of the first split ring 2. The limiting member 3 deforms under force to expand the limiting member through hole 30 or the gap 31, thereby enabling the gap of the first split ring 2 to rotate out of the first through hole 10. Then, the opposite operation can be performed to rotate the gap of the first split ring 2 into the first through hole 10.When the first split ring 2 does not perform the operation of rotating out or rotating in, the end of the first split ring 2 will not apply a force to the limiting member 3. The limiting member 3 does not receive a force. At the same time, the diameter of the limiting member through hole 30 or the width of the gap 31 is smaller than the thickness of the first split ring 2. The first split ring 2 cannot pass through the limiting member through hole 30 or the gap 31. The limiting member 3 plays a role of blocking and limiting the first split ring 2, avoiding the problem that the notch of the first split ring 2 rotates out of the first through hole 10 during normal use and causing the loss of the key.

[0022] A further improvement is, for example Figures 1 to 4 As shown in Figures 1 to 4 , the first way is that the limiting member 3 is an annular protrusion extending from the hole wall of the first through hole 10. The inner diameter of the annular protrusion is smaller than the thickness of the first split ring 2. The hollow part of the annular protrusion becomes the limiting member through hole 30. By the annular protrusion, the diameter of the first through hole 10 becomes smaller. And the inner diameter of the annular protrusion being smaller than the thickness of the first split ring 2 makes it impossible for the first split ring 2 to directly pass through the inner ring of the annular protrusion. Only by applying a force to the annular protrusion to cause it to deform and expand the diameter of its inner ring can the first split ring 2 pass through. The notch of the first split ring 2 rotates out of the first through hole 10. Then, by reverse operation, the notch of the first split ring 2 can be rotated into the first through hole 10, and the annular protrusion returns to its original state.

[0023] A further improvement is, for example Figure 1 、 Figure 3 and Figure 4 As shown in Figure 1 , Figure 3 and Figure 4 , a wristband 4 for wearing on the wrist is further provided on the key holder 1 at an interval from the first through hole 10. By providing the wristband 4 on the key holder 1, the wristband 4 can be worn on the wrist for convenient carrying. At this time, the wristband 4 and the first through hole 10 are provided on the key holder 1 at an interval, which means that they are not connected to each other, and it will not affect the installation of the first split ring 2 in the first through hole 10. The key holder 1 and the wristband 4 are integrally formed. The integral structure of the key holder 1 and the wristband 4 avoids the need to provide corresponding connection structures between the two, simplifying the product structure, such as being integrally injection-molded using rubber through a mold.

[0024] A further improvement is, for example Figures 5 to 7As shown in [description], the second method is that on the keychain holder 1, a second through hole 11 with an axis perpendicular to the axis of the first through hole 10 is provided on the hole wall of the first through hole 10. If the axis direction of the first through hole 10 is the left - right direction, then the axis direction of the second through hole 11 can be the front - back direction or the up - down direction. Preferably, the axis direction of the second through hole 11 is the up - down direction. Since the second through hole 11 is provided on the hole wall of the first through hole 10, at this time, the first through hole 10 and the second through hole 11 form a through hole with a tee - joint structure; the limiting member 3 is installed in the second through hole 11 and partially extends into the first through hole 10, and there is a gap 31 with a width less than the thickness of the first split ring 2 between the part of the limiting member 3 extending into the first through hole 10 and the opposite hole wall of the first through hole 10. For example, if the second through hole 11 is set as a countersunk through hole and the limiting member 3 is set as a limiting member with a T - shaped structure, and then the limiting member 3 is installed at the countersunk part of the second through hole 11, the limiting member 3 will not protrude from the surface of the keychain holder 1. The lower part of the limiting member 3 extends into the first through hole 10. At this time, there is a gap 31 between the end face at the lower end of the limiting member 3 and the opposite hole wall in the first through hole 10, and there is also a gap 31 between the side wall at the lower part of the limiting member 3 and the opposite hole wall in the first through hole 10 relative to the side wall at the lower part of the limiting member 3. The widths of these gaps 31 are all less than the thickness of the first split ring 2. Without deformation of the limiting member 3, the first split ring 2 cannot pass through these gaps 31. That is to say, the part of the limiting member 3 extending into the first through hole 10 and the hole wall in the first through hole 10 are not connected and there is a gap, and this gap becomes the channel for the notch of the first split ring 2 to turn in or out of the first through hole 10 after the deformation of the limiting member 3. Regarding the installation structure of the limiting member 3 in the second through hole 11, the limiting member 3 is provided with a clamping groove 32 that engages with the edge of the second through hole 11, and the lower part of the limiting member 3 is in an inverted conical shape. The limiting member 3 is snap - fitted and installed on the second through hole 11. Since the limiting member 3 can be elastically deformed, such a structure also facilitates the installation of the limiting member 3 on the second through hole 11. By setting the lower part of the limiting member 3 as an inverted conical shape, the resistance generated by the lower end of the limiting member 3 to the rotation of the first split ring 2 is reduced, facilitating the rotation of the first split ring 2.

[0025] Further improvement, such as Figures 5 to 7As shown in the figure, the keychain base 1 includes an upper rotating base 12 and a lower rotating base 13 that are rotatably connected to each other. First through holes 10 are provided on both the upper rotating base 12 and the lower rotating base 13. The second through hole 11 is provided on the upper rotating base 12 and / or the lower rotating base 13. The first split ring 2 is installed in the first through hole 10 whose hole wall is provided with the second through hole 11. That is, the keychain base 1 is composed of two parts. The upper rotating base 12 is rotatably connected to the lower rotating base 13 relative to the lower rotating base 13. The first through hole 10 and the second through hole 11 are provided on the upper rotating base 12. A limiting member 3 is installed in the second through hole 11. Only the first through hole 10 is provided on the lower rotating base 13 without the second through hole 11. The first split ring 2 is installed in the first through hole 10 of the upper rotating base 12. Different components can be installed in the first through hole 10 on the lower rotating base 13 according to the usage requirements; or the first through hole 10 and the second through hole 11 are provided on the lower rotating base 13. A limiting member 3 is installed in the second through hole 11. Only the first through hole 10 is provided on the upper rotating base 12 without the second through hole 11. The first split ring 2 is installed in the first through hole 10 of the lower rotating base 13. Different components can be installed in the first through hole 10 on the upper rotating base 12 according to the usage requirements; or the second through hole 11 is provided on both the upper rotating base 12 and the lower rotating base 13. A limiting member 3 is installed in each second through hole 11. The first split ring 2 is installed in the first through hole 10 of any one of the upper rotating base 12 and the lower rotating base 13, and a pendant or a second split ring 5 is installed in the first through hole 10 of the other. That is to say, in the two first through holes 10, a first split ring 2 is installed in one first through hole 10, and a pendant or a second split ring 5 is installed in the other first through hole 10. For example, the second split ring 5 is set to have the same structure as the first split ring 2; when a pendant is installed in the other first through hole 10, the keychain forms a decorative pendant that is convenient to hang. When a second split ring 5 is installed in the other first through hole 10, the keychain can use the two split rings to disassemble and assemble different components respectively, which is more convenient for the use of the keychain and expands the uses of the keychain.

[0026] For the installation structure of the pendant in the first through hole 10, a pendant split ring is provided on the pendant. The width of the notch of the pendant split ring is smaller than the length of the first through hole 10. The two ends of the pendant split ring are correspondingly located on both sides inside the first through hole 10. The thickness of the pendant split ring is greater than the width of the gap 31. That is to say, a notch is provided on the pendant, and extension arms that extend into the first through hole 10 are provided on both sides of the top of the notch. An open ring is formed between the extension arms and the pendant itself. At this time, the thickness of the extension arms is greater than the width of the gap 31. A structure similar to that between the first split ring 2, the first through hole 10 and the limiting member 3 is formed among the pendant split ring, the first through hole 10 and the limiting member 3, and the pendant can be conveniently disassembled and assembled in the first through hole 10.

[0027] For the rotation structure between the upper rotating seat 12 and the lower rotating seat 13, as Figure 6 and Figure 7 shown, rotation seat through holes 120 are provided on the opposing surfaces of the upper rotating seat 12 and the lower rotating seat 13. That is to say, a rotation seat through hole 120 communicating with the first through hole 10 is provided on the lower surface of the upper rotating seat 12, and a rotation seat through hole 120 communicating with the first through hole 10 is provided on the upper surface of the lower rotating seat 13. At this time, the second through hole 11 on the upper rotating seat 12 is provided on the upper surface of the upper rotating seat 12, and the second through hole 11 on the lower rotating seat 13 is provided on the lower surface of the lower rotating seat 13. The rotation seat through holes 120 and the second through holes 11 on the two rotating seats are coaxial. A rotating shaft 121 having a T-shaped structure is press-fitted and installed in the rotation seat through hole 120 of the upper rotating seat 12 or the lower rotating seat 13. The lower rotating seat 13 or the upper rotating seat 12 is rotatably sleeved on the rotating shaft 121. That is, the rotating shaft 121 has a T-shaped structure. One way is that the lower part of the rotating shaft 121 passes downward through the rotation seat through hole 120 of the upper rotating seat 12 from above and then is inserted into the rotation seat through hole 120 of the lower rotating seat 13, and the rotating shaft 121 and it are press-fitted and installed in the rotation seat through hole 120 of the lower rotating seat 13. At this time, the upper rotating seat 12 is sleeved on the rotating shaft 121 through the rotation seat through hole 120 provided thereon and can rotate around the rotating shaft 121; another way is to invert the rotating shaft 121 first. At this time, the lower part of the rotating shaft 121 passes upward through the rotation seat through hole 120 of the lower rotating seat 13 from below and then is inserted into the rotation seat through hole 120 of the upper rotating seat 12, and the rotating shaft 121 and it are press-fitted and installed in the rotation seat through hole 120 of the upper rotating seat 12. At this time, the lower rotating seat 13 is sleeved on the rotating shaft 121 through the rotation seat through hole 120 provided thereon and can rotate around the rotating shaft 121.

[0028] Although the present utility model has been described in detail above with general descriptions and specific embodiments, based on the present utility model, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present utility model all fall within the scope of protection required by the present utility model.

Claims

1. A keychain that is convenient to use, characterized in that: It includes a keychain seat. A first through hole is provided on the keychain seat. A first split ring is movably installed in the first through hole, and the width of the notch of the first split ring is smaller than the length of the first through hole. The two ends of the first split ring are respectively located on both sides inside the first through hole. An elastic deformable limiting member with a part located in the notch of the first split ring is provided on the hole wall of the first through hole. A limiting member through hole or gap with a width smaller than the thickness of the first split ring is provided on the limiting member or between the limiting member and the hole wall of the first through hole; A second through hole with an axis perpendicular to the axis of the first through hole is provided on the keychain seat on the hole wall of the first through hole; The limiting member is installed in the second through hole and has a part extending into the first through hole, and a gap with a distance smaller than the thickness of the first split ring is spaced between the part of the limiting member extending into the first through hole and the opposite hole wall of the first through hole; The keychain seat includes an upper rotating seat and a lower rotating seat that are rotatably connected to each other. First through holes are provided on both the upper rotating seat and the lower rotating seat. The second through hole is provided on the upper rotating seat and / or the lower rotating seat. The first split ring is installed in the first through hole with the second through hole provided on its hole wall.

2. The keychain convenient for use according to claim 1, wherein : A wristband for wearing on the wrist and spaced from the first through hole is further provided on the keychain seat.

3. The keychain convenient to use according to claim 2, wherein : The keychain seat and the wristband are of an integrally formed structure.

4. The keychain easy to use according to claim 1, characterized in that : Second through holes are provided on both the upper rotating seat and the lower rotating seat. A limiting member is installed in each second through hole. The first split ring is installed in the first through hole of any one of the upper rotating seat and the lower rotating seat, and a pendant or a second split ring is installed in the first through hole of the other.

5. The keychain convenient to use according to claim 4, characterized in that : A pendant split ring is provided on the pendant. The width of the notch of the pendant split ring is smaller than the length of the first through hole. The two ends of the pendant split ring are respectively located on both sides inside the first through hole. The thickness of the pendant split ring is greater than the width of the gap.

6. The keychain that is convenient to use according to claim 1, wherein : Rotating seat through holes are provided on the opposite surfaces of the upper rotating seat and the lower rotating seat. A T-shaped shaft is installed in the rotating seat through hole of the upper rotating seat or the lower rotating seat by interference fit. The lower rotating seat or the upper rotating seat is rotatably sleeved on the shaft.

7. The keychain convenient to use according to any one of claims 4 to 6, characterized in that : A clamping groove engaged with the edge of the second through hole is provided on the limiting member. The lower part of the limiting member is in an inverted cone shape.

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