Double-opening bolt assembly and zipper

Abstract

The utility model provides a double-opening bolt assembly and a zipper, the double-opening bolt assembly comprises a first puller, a second puller, a bolt body and a socket body, the first puller and the second puller are provided with zipper closing ports arranged oppositely and zipper separating ports arranged oppositely, and zipper separating branch cores are arranged in the middles of the zipper separating ports; the bolt body is provided with an insertion end and a first connecting end, and the socket body is provided with a stop end and a second connecting end; a positioning part is arranged on the surface of the second connecting end of the socket body, and when the first pull head and the second pull head are pulled to enable the first pull head to be in contact with the stop end of the socket body, the stop end of the socket body blocks the zipper separating opening of the first pull head; and the positioning part of the socket body enters the interior of the second pull head through the zipper closing opening and positions the second pull head, so that the first pull head and the second pull head are kept aligned. The bolt has the advantages that the bolt body can be effectively ensured to be quickly inserted in place at one time in the actual insertion process, the operation is very easy and convenient, and the use experience feeling is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to zip fastener technical field, especially in two open draw -in bolt subassembly and zipper. BACKGROUND

[0002] Two open zippers have the characteristics of opening in two directions, and can be opened by a single puller or two pullers, the opening direction is not limited, and has higher flexibility, and can be used in different application occasions such as clothes and tents. However, the existing two open zippers have the following defects in actual use:

[0003] 1. The two pullers are not aligned, and the pullers need to be corrected to make the two pullers flush during insertion, and the cloth belt of the zipper also generates resistance to correction; 2. Affected by the cavity structure of the two pullers or the shape of the socket, the plug-in bolt is extruded by the inner wall of the two pullers or the socket during the insertion process; 3. Limited by the inner cavity structure of the puller, the plug-in bolt is blocked by the puller support core during the insertion process, causing the insertion process to be stuck. Based on the above reasons, the plug-in bolt cannot be inserted into place at one time during the actual insertion process, the operation is relatively inconvenient, and the use experience is poor. In view of the above problems, the present case is produced after in-depth research on the problem. SUMMARY

[0004] The utility model wants to solve the technical problem, provide a kind of two open draw -in bolt subassembly and zipper, solve the existing two open zippers and the problem that plug-in bolt cannot be inserted into place at one time during the actual insertion process, operation is relatively inconvenient, and use experience is poor.

[0005] The utility model is realized as follows:

[0006] Firstly, a two open draw -in bolt subassembly includes a first puller, a second puller, a plug-in bolt body and a socket body, the first puller and the second puller have oppositely arranged chain joints and oppositely arranged chain joints, and the middle part of the chain joint is provided with a chain joint support core;The plug-in bolt body has an insertion end and a first connecting end, and the socket body has a stop end and a second connecting end;The surface of the second connecting end of the socket body is provided with a positioning part, when the first puller and the second puller are pulled to make the first puller contact with the stop end of the socket body, the stop end of the socket body blocks the chain joint of the first puller, and the positioning part of the socket body enters the inside of the second puller through the chain joint and positions the second puller, so that the first puller and the second puller remain aligned.

[0007] Further, the positioning part is a positioning boss formed on the upper surface of the second connecting end of the socket body;

[0008] Or the positioning part is a positioning boss formed on the lower surface of the second connecting end of the socket body.

[0009] Alternatively, the positioning part is a positioning boss formed on the upper surface and the lower surface of the second connecting end of the socket body.

[0010] Further, the overall thickness of the second connecting end of the socket body at the position of the corresponding positioning boss is greater than or equal to the height of the chain joint.

[0011] Further, the overall thickness of the second connecting end of the socket body at the position of the corresponding positioning boss is greater than or equal to the height of the chain joint.

[0012] Further, the positioning boss has a four-prism structure with a large lower part and a small upper part.

[0013] Further, the insertion end of the plug body is formed with a guide arc surface on the side facing the socket body for guiding cooperation with the chain branch core of the first puller, and the plug body is formed with an arc-shaped avoiding recess on the side away from the socket body.

[0014] The side of the socket body away from the plug body is left with a first gap between the side wall of the first puller and the second puller, and when the plug body is inserted to the position where the guide arc surface contacts the socket body, the side of the plug body away from the socket body is left with a second gap between the side wall of the first puller and the second puller, and during the insertion of the plug body, a third gap is left between the first connecting end of the plug body and the chain branch core of the second puller.

[0015] Further, the height of the guide arc surface accounts for 20%-25% of the height of the entire plug body.

[0016] Further, the depth of the arc-shaped avoiding recess accounts for 15%-20% of the width of the plug body.

[0017] Further, the first connecting end of the plug body is formed with a clamping groove on the side facing the socket body, and the second connecting end of the socket body is formed with a clamping part on the side facing the plug body, and when the plug body is inserted in place, the clamping part is clamped in the clamping groove.

[0018] In the second aspect, the zipper adopts the double-opening plug assembly.

[0019] By adopting the technical scheme of the utility model, at least the following beneficial effects are achieved:

[0020] 1. The positioning part is arranged on the surface of the second connecting end of the socket body, so that when the first puller and the second puller are pulled to make the first puller contact with the stop end of the socket body, the stop end of the socket body can block the chain separation port of the first puller, and the positioning part of the socket body can enter the second puller and position the second puller, so that the first puller and the second puller are kept aligned, so that the first puller and the second puller do not need to be manually corrected during the process of inserting the bolt body, which is beneficial to quickly insert the bolt body into place and is more convenient to operate.

[0021] 2. The guide arc surface is formed on the insertion end of the bolt body for cooperating with the chain separation branch core of the first puller to realize guidance, and the third gap is left between the first connecting end of the bolt body and the chain separation branch core of the second puller, so that the bolt body can reliably avoid the chain separation branch core of the second puller and the chain separation branch core of the first puller during the insertion process, and the insertion process is not blocked; at the same time, in cooperation with the design of the positioning part, the arc-shaped avoiding recess of the bolt body, the first gap and the second gap, the bolt body can be effectively ensured not to be extruded and deformed during the insertion process, so that the bolt body can be quickly inserted into place at one time during the actual insertion process, and the operation is very easy, convenient and good in use experience. BRIEF DESCRIPTION OF DRAWINGS

[0022] The utility model will be further described in connection with the embodiments with reference to the drawings.

[0023] Figure 1 is the state diagram of the utility model double open bolt assembly when the bolt body is just inserted;

[0024] Figure 2 is the state diagram of the utility model double open bolt assembly when the bolt body is inserted for a distance;

[0025] Figure 3 is the state diagram of the utility model double open bolt assembly after the bolt body is inserted;

[0026] Figure 4 is the structure diagram of the bolt body and the socket body in the utility model;

[0027] Figure 5 is the structure diagram of the socket body in the utility model;

[0028] Figure 6 is the structure diagram of the bolt body in the utility model;

[0029] Figure 7 is Figure 6 the right view of

[0030] Figure 8 is the structure diagram of the utility model zipper.

[0031] Explanation of reference signs:

[0032] Double open bolt assembly 100;

[0033] First zipper tape 101, second zipper tape 102;

[0034] Zipper 200;

[0035] First puller 1;

[0036] Second puller 2;

[0037] Bolt body 3, insertion end 31, first connecting end 32, guide arc surface 33, clamping groove 34, arc-shaped avoiding recess 35;

[0038] Socket body 4, stop end 41, second connecting end 42, clamping part 43, stop protrusion 44;

[0039] Chain joint 51, chain separation 52;

[0040] Chain separation branch core 6;

[0041] Positioning part 7, positioning boss 71;

[0042] First gap 81, second gap 82, third gap 83.

DETAILED DESCRIPTION

[0043] In order to better understand the technical scheme of the utility model, the technical scheme of the utility model will be described in detail below in combination with the drawings of the specification and specific embodiments.

[0044] It should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing these embodiments and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation. In addition, the terms "first", "second" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features.

[0045] Embodiment one

[0046] Please refer to Figures 1 to 7As shown, the utility model discloses a double -open bolt assembly 100, the double -open bolt assembly 100 includes first pull head 1, second pull head 2, bolt body 3 and socket body 4, first pull head 1 and second pull head 2 have the chain mouth 51 of setting up to each other and the chain mouth 52 of setting up to each other, the middle part of chain mouth 52 is provided with chain branch core 6, that is, utilize chain branch core 6 and divide chain mouth 52 into left and right two parts, wherein, the structure and size of first pull head 1 and second pull head 2 are identical, and chain branch core 6 is used to play the role of supporting and chain division;

[0047] Bolt body 3 has insertion end 31 and first connecting end 32, and socket body 4 has stop end 41 and second connecting end 42, the surface of second connecting end 42 of socket body 4 is provided with positioning part 7, when first pull head 1 and second pull head 2 are pulled to make first pull head 1 contact with stop end 41 of socket body 4, stop end 41 of socket body 4 forms the obstruction to chain mouth 52 of first pull head 1, so that first pull head 1 and second pull head 2 do not separate from socket body 4, positioning part 7 of socket body 4 enters the inside of second pull head 2 through chain mouth 51 and positions second pull head 2, so that first pull head 1 and second pull head 2 keep alignment, specifically, the chain mouth 51 of first pull head 1 keeps alignment with the chain mouth 51 of second pull head 2, so that the direct insertion of bolt body 3 is facilitated.

[0048] The utility model discloses a positioning part 7 is arranged on the surface of second connecting end 42 of socket body 4, so that when first pull head 1 and second pull head 2 are pulled to make first pull head 1 contact with stop end 41 of socket body 4, stop end 41 of socket body 4 can form the obstruction to chain mouth 52 of first pull head 1, and simultaneously positioning part 7 of socket body 4 can enter second pull head 2 and position second pull head 2, so that first pull head 1 and second pull head 2 keep alignment, so that in the process of inserting bolt body 3, it is not necessary to manually correct first pull head 1 and second pull head 2 again, is favorable to the quick insertion of bolt body 3 in place, and it is more convenient to operate.

[0049] As the first specific embodiment of the utility model, the positioning part 7 is the positioning boss 71 formed on the upper surface of second connecting end 42 of socket body 4, when first pull head 1 and second pull head 2 are pulled to make first pull head 1 contact with stop end 41 of socket body 4, positioning boss 71 can enter second pull head 2 and contact the inner cavity top wall of second pull head 2 to realize positioning.

[0050] As the second specific embodiment of the utility model, the positioning part 7 is the positioning boss 71 formed on the lower surface of the second connecting end 42 of the socket body 4, when the first puller 1 and the second puller 2 are pulled to make the first puller 1 contact with the stop end 41 of the socket body 4, the positioning boss 71 can enter into the second puller 2 and contact with the inner cavity bottom wall of the second puller 2 to realize positioning.

[0051] As the third specific embodiment of the utility model, the positioning part 7 is the positioning boss 71 formed on the upper surface and the lower surface of the second connecting end 42 of the socket body 4, when the first puller 1 and the second puller 2 are pulled to make the first puller 1 contact with the stop end 41 of the socket body 4, the two positioning bosses 71 can enter into the second puller 2 at the same time and contact with the inner cavity bottom wall and the inner cavity top wall of the second puller 2 respectively to realize positioning.

[0052] In the utility model, the positioning part 7 can be selected from the above three specific embodiments, but the utility model is not limited to this, other structure's positioning part 7 can also be used in the specific implementation, as long as when the first puller 1 and the second puller 2 are pulled to make the first puller 1 contact with the stop end 41 of the socket body 4, the second puller 2 can be positioned to make the first puller 1 and the second puller 2 keep alignment.

[0053] In the utility model, the overall thickness of the second connecting end 42 of the socket body 4 at the position corresponding to the positioning boss 71 is greater than or equal to the height of the chain joint 51, so as to ensure that the positioning boss 71 can position the second puller 2 after entering the inner cavity of the second puller 2 through the chain joint 51, so that the first puller 1 and the second puller 2 can keep alignment.

[0054] In some embodiments of the utility model, the overall thickness of the second connecting end 42 of the socket body 4 at the position corresponding to the positioning boss 71 is 0-0.05mm greater than the height of the chain joint 51.

[0055] If the overall thickness of the second connecting end 42 at the position corresponding to the positioning boss 71 is much greater than the height of the chain joint 51, the positioning boss 71 will be difficult or unable to enter the inner cavity of the second puller 2 through the chain joint 51, and if the overall thickness of the second connecting end 42 at the position corresponding to the positioning boss 71 is smaller than the height of the chain joint 51, the positioning boss 71 will be unable to position the second puller 2 after entering the inner cavity of the second puller 2 through the chain joint 51; therefore, the overall thickness of the second connecting end 42 of the socket body 4 at the position corresponding to the positioning boss 71 is designed to be 0-0.05mm greater than the height of the chain joint 51, and since the socket body 4 is usually made of plastic injection molding and has a certain deformation ability, the above design can not only ensure that the positioning boss 71 can enter the inner cavity of the second puller 2 through the chain joint 51, but also enable the positioning boss 71 to position the second puller 2 after entering the inner cavity of the second puller 2.

[0056] Further, the positioning boss 71 has a four-prism structure with a large lower part and a small upper part, which facilitates the positioning boss 71 to enter the inner cavity of the second puller 2 through the chain joint 51 more smoothly.

[0057] In some embodiments of the utility model, the insertion end of the bolt body 3 is formed with a guide arc surface 33 on the side facing the socket body 4 for cooperating with the chain branch core 6 of the first puller 1 to realize guiding, so that the bolt body 3 will not be extruded by the chain branch core 6 of the first puller 1 during insertion; the middle part of the bolt body 3 on the side away from the socket body 4 is formed with an arc-shaped avoiding recess 35 recessed inward, so that when the bolt body 3 is inserted to the contact between the guide arc surface 33 and the socket body 4, the sidewalls of the first puller 1 and the second puller 2 and the socket body 4 will not extrude the bolt body 3;

[0058] The side of the socket body 4 away from the bolt body 3 and the sidewalls of the first puller 1 and the second puller 2 leave a first gap 81; when the bolt body 3 is inserted to the contact between the guide arc surface 33 and the socket body 4, the side of the bolt body 3 away from the socket body 4 and the sidewalls of the first puller 1 and the second puller 2 leave a second gap 82; during the insertion process of the bolt body 3, the first connecting end 32 of the bolt body 3 and the chain branch core 6 of the second puller 2 leave a third gap 83.

[0059] The utility model discloses a guide arc surface 33 is formed to the insertion end of the bolt body 3 for realizing the guidance with the branch chain core 6 of the first pull head 1, and the first connecting end 32 of the bolt body 3 and the branch chain core 6 between the second pull head 2 leave the third gap 83, can reliably avoid the branch chain core 6 of the second pull head 2 and the branch chain core 6 of the first pull head 1 in the process of inserting, avoid the process of inserting and appearing to jam, and simultaneously cooperate with the design of the positioning portion 7, the arc-shaped avoiding recess 35 of the bolt body 3, the first gap 81 and the second gap 82, can effectively ensure that the bolt body 3 does not receive extrusion deformation in the process of inserting, makes the bolt body 3 in actual insertion process can be inserted in place one time fast, and operation is very easy, convenient, and the use experience is good.

[0060] Further, as shown in Figure 7 In order to make the guide arc surface 33 better play the guiding role, and ensure that the bolt body 3 does not receive extrusion in the process of inserting, the height H1 of the guide arc surface 33 accounts for 20%-25% of the height H2 of the entire bolt body 3.

[0061] Further, in order to better ensure that when the bolt body 3 is inserted to the contact of the guide arc surface 33 and the socket body 4, the bolt body 3 does not receive extrusion from the other side wall of the first pull head 1 and the second pull head 2, the depth D1 of the arc-shaped avoiding recess 35 accounts for 15%-20% of the width D2 of the bolt body 3, as shown in Figure 7 Need to be explained here, the width D2 of the bolt body 3 does not include the part extending outward for forming the clamping groove 34.

[0062] In some embodiments of the utility model, as shown in Figure 5 And Figure 6 The first connecting end 32 of the bolt body 3 is formed with a clamping groove 34 on the side facing the socket body 4, and the second connecting end 42 of the socket body 4 is formed with a clamping portion 43 on the side facing the bolt body 3, when the bolt body 3 is inserted in place, the clamping portion 43 is clamped in the clamping groove 34, so that the bolt body 3 can be combined with the socket body 4, thereby facilitating the first pull head 1 and the second pull head 2 to pull the zipper.

[0063] In the specific implementation of the utility model, the upper surface and the lower surface of the stop end 41 of the socket body 4 are provided with stop protrusions 44, so as to block the first pull head 1 by the stop protrusions 44, and ensure that the first pull head 1 and the second pull head 2 do not separate from the socket body 4.

[0064] Embodiment two

[0065] Please refer to Figures 1 to 8As shown, the utility model discloses a zipper 200, the zipper 200 includes double -open bolt assembly 100, first zipper cloth tape 101 and second zipper cloth tape 102, wherein, first zipper cloth tape 101 and second zipper cloth tape 102 are evenly distributed with zipper (not shown) on the side edge of the opposite side, the bolt body 3 of double -open bolt assembly 100 is connected with the one side end of first zipper cloth tape 101 with zipper, and the first connecting end 32 of bolt body 3 is closely arranged with zipper, the socket body 4 of double -open bolt assembly 100 is connected with the one side end of second zipper cloth tape 102 with zipper, and the second connecting end 42 of socket body 4 is closely arranged with zipper, the specific structure of double -open bolt assembly 100 and the technical effect that can be obtained are completely same with example one, specifically please refer to the detailed introduction of example one, here will not repeat.

[0066] Although the above describes the specific embodiment of the utility model, but the skilled person in the art should understand, the specific example that we described is only illustrative, and is not used to limit the scope of the utility model, the equivalent modification and change that the skilled person in the art is made according to the spirit of the utility model should be covered in the scope of the claim protection of the utility model.

Claims

1. A double-throw latch assembly comprising a first pull handle, a second pull handle, a latch body and a socket body, the first and second pull handles having a jointing mouth arranged oppositely and a separating mouth arranged oppositely, the middle part of the separating mouth being provided with a separating branch core; the latch body having an insertion end and a first connecting end, the socket body having a stop end and a second connecting end; characterized in that: The surface of the second connecting end of the socket body is provided with a positioning part, when the first puller and the second puller are pulled to make the first puller contact with the stop end of the socket body, the stop end of the socket body blocks the chain separation port of the first puller, the positioning part of the socket body enters the inside of the second puller through the chain combination port and positions the second puller, so that the first puller and the second puller are kept in alignment; The insertion end of the plug body is formed with a guide arc surface on the side facing the socket body for guiding the chain separation branch core of the first puller, when the plug body is inserted to contact the socket body, the side of the plug body away from the socket body leaves a second gap between the side wall of the other side of the first puller and the second puller.

2. A twin latch assembly as claimed in claim 1, wherein: The positioning part is a positioning boss formed on the upper surface of the second connecting end of the socket body; Or the positioning part is a positioning boss formed on the lower surface of the second connecting end of the socket body; Or the positioning part is a positioning boss formed on the upper surface and the lower surface of the second connecting end of the socket body.

3. A twin latch assembly as claimed in claim 2, wherein: The overall thickness of the second connecting end of the socket body at the position corresponding to the positioning boss is greater than or equal to the height of the chain combination port.

4. A twin lever latch assembly as claimed in claim 3, wherein: The overall thickness of the second connecting end of the socket body at the position corresponding to the positioning boss is 0-0.05mm greater than the height of the chain combination port.

5. A twin latch assembly as defined in claim 2 wherein: The positioning boss has a four-prism structure with a large lower part and a small upper part.

6. A twin latch assembly as defined in claim 1 wherein: The plug body is formed with an arc-shaped avoiding recess inwardly recessed in the middle of the side away from the socket body; The side of the socket body away from the plug body leaves a first gap between the side wall of one side of the first puller and the second puller, and the plug body leaves a third gap between the first connecting end of the plug body and the chain separation branch core of the second puller during insertion.

7. A twin lever latch assembly as claimed in claim 6, wherein: The height of the guide arc surface accounts for 20%-25% of the height of the entire plug body.

8. A twin-lever latch assembly as claimed in claim 6, wherein: The depth of the arc-shaped avoiding recess accounts for 15%-20% of the width of the plug body.

9. A double throw latch assembly as defined in claim 1 wherein: The first connecting end of the plug body is formed with a clamping groove on the side facing the socket body, and the second connecting end of the socket body is formed with a clamping part on the side facing the plug body, when the plug body is inserted in place, the clamping part is clamped in the clamping groove.

10. A zipper characterized by: The zipper adopts the double-opening plug assembly according to any one of claims 1-9.

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