Sealed zipper slider and assembly

Abstract

The present invention relates to a sealed zipper slider, comprising a split core, two limit plates and a connecting plate connecting the two limit plates; the two limit plates are arranged opposite to each other, the split core is arranged on the connecting plate and between the two limit plates, the split core comprises an open end and a closed end, the open end and the closed end are connected; the angle between the side of the open end and the connecting plate is an acute angle; the angle between the side of the closed end and the connecting plate is an acute angle; it also relates to a sealed zipper assembly, comprising two single chains and the sealed zipper slider as described above; the split core of the sealed zipper slider is located between the auxiliary track and the toothless hook close to the auxiliary track. The slider of the present invention is not easy to fall off and is easy to use. The slider cooperates with the toothless hooks of the two single chains and the auxiliary track, and the sealing effect of the zipper is good.

Description

Technical Field

[0001] The invention relates to a sealed zipper slider and a component, belonging to the technical field of sealed zippers. Background Art

[0002] The zipper assembly is a sealing device commonly used in people's daily life. It is combined with two single chains and a slider. The slider includes relatively arranged limit plates and a connecting plate connecting the limit plates. A split core body is provided on the connecting plate. The two single chains are relatively arranged. A toothless hook is provided on each opposite surface of the single chain. When the slider slides along the two single chains to one end, the toothless hooks on the two single chains are clamped, and the two single chains will be closed together. When the slider slides in the opposite direction, the split core body will open the toothless hooks of the two single chains, and the two single chains will be separated, thereby forming an opening that can be opened and closed between the two single chains.

[0003] Since the zipper assembly is very convenient to open and close, it is now widely used in document bags and fresh-keeping bags. Fresh-keeping bags are generally used to hold food or liquids. If the fresh-keeping bag is not tightly sealed, it will cause leakage and waste of liquids. Some foods contain water, and the water in the food flows out of the fresh-keeping bag and pollutes the refrigerator or other foods. In order to prevent this from happening, most existing fresh-keeping bags are made of plastic materials with good waterproof performance to make the bag body, but this can only prevent water from seeping out of the bag body, but cannot prevent water from flowing out of the bag mouth, because in the existing zipper assembly, in order to make the slider better open or close the zipper, the split core body of the slider is generally extended between the toothless hooks on the two single chains. However, after such a setting, the toothless hooks at the split core body cannot be completely closed and sealed, and water will flow out from the gap between the split core body and the toothless hook. This zipper does not have waterproof ability and cannot prevent water from flowing out of the bag mouth. In order to achieve a better sealing effect on the bag opening, existing fresh-keeping bags for items containing liquids generally use a double-layer sealed zipper assembly, that is, each single chain is provided with two toothless hooks and an auxiliary track, and the split core body of the slider is located between the auxiliary track and the first toothless hook. When closed, even if the first toothless hooks of the two single chains cannot be completely sealed due to the existence of the split core body, the split core body is not easy to affect the sealing of the second toothless hook. In theory, the sealing effect is better, and it can be used for packaging water-containing food and liquids. However, in actual applications, it is found that the width of the split core has a great influence on the sealing effect of the zipper assembly. If the width of the split core is too large, when sealing the zipper, the second toothless hook may be stretched open, making it impossible to achieve a good seal, and it takes a lot of effort to slide the slider, which is inconvenient to use; if the width of the split core is set to be smaller, if the fastening force between the toothless hooks is made tighter, the width of the split core may not be enough to stretch the two toothless hooks, which is very inconvenient to use. The sealing effect cannot be ensured by making the single chains tighter, and when opening and closing, if you do not pay attention to the force of pulling the slider, it is likely that the slider will slip off when it slides to the end, causing damage to the zipper and the fresh-keeping bag cannot be used anymore. Moreover, since the slider is an injection molded part, it needs to be demolded during the processing. In order to demold faster, the common practice is to set a draft angle on the side of the split core, that is, the angles between all sides of the split core and the connecting plate are all obtuse angles, which is convenient for mold removal. Due to the setting of the draft angle, the split core is more inclined to move outward when sliding, and it is easier for the split core to separate from the two single chains. Therefore, a sealing zipper assembly is needed which can ensure the sealing effect of the sealed bag and is convenient to use. Summary of the invention

[0004] Aiming at the problems that the existing sealed zipper slider is easy to fall off, has poor sealing performance and is inconvenient to use, the present invention provides a sealed zipper slider and assembly with good sealing performance, convenient slider sliding and not easy to fall off.

[0005] The technical solution of the present invention to solve the above technical problems is as follows:

[0006] A sealed zipper slider comprises a split core body, two limit plates and a connecting plate connecting the two limit plates; the two limit plates are arranged opposite to each other, the split core body is arranged on the connecting plate and between the two limit plates, the split core body comprises an open end and a closed end, and the open end and the closed end are connected; the angle between the side surface of the open end and the connecting plate is an acute angle; the angle between the side surface of the closed end and the connecting plate is an acute angle.

[0007] The beneficial effects of the present invention are as follows: by setting the angles between the open end side surface and the closed end side surface of the split core body and the connecting plate to be acute angles, the width of the side of the split core body close to the upper end of the single chain is small, so that the upper ends of the two single chains of the zipper can be tightened during the sliding process of the slider, and when sealing the bag opening, the toothless hook is not easily opened by the slider, and the sealing performance of the bag opening is better; the width of the side of the slider close to the toothless hook of the single chain is large, and when opening the bag opening, the slider can smoothly open the toothless hook of the single chain, and the zipper is easy to use; and, because the angle between the side surface of the split core body and the connecting plate is an acute angle, when the slider slides to the end of the single chain, the split core body of the slider has a tendency to move toward the lower direction of the zipper under the action of tension, and will not move toward the upper direction of the zipper, and the slider will not easily fall out when it slides to the end of the zipper, thereby avoiding damage to the zipper during the process of pulling the slider.

[0008] On the basis of the above technical solution, in order to achieve the convenience of use and the stability of the equipment, the present invention can also make the following improvements to the above technical solution:

[0009] Furthermore, the side surfaces of the open end include a first side surface A and a first side surface B, the first side surface A and the first side surface B are planes; the first side surface A is connected to the first side surface B; and an angle A between the first side surface A and the first side surface B is an acute angle.

[0010] The beneficial effect of adopting the above-mentioned further technical solution is that the first side surface A is connected to the first side surface B, the angle A between the first side surface A and the first side surface B is an acute angle, the end of the open end of the sub-core body is a pointed end, and when the open end slides to the end of the zipper, the end of the sub-core body can be inserted under the closing point of the end of the zipper, and is not easy to fall out, which is beneficial to further prevent the slider from slipping.

[0011] Furthermore, an angle between a common edge A connecting the first side surface A and the first side surface B and the connecting plate is an acute angle.

[0012] The beneficial effect of adopting the above-mentioned further technical solution is that the angle between the common edge A connecting the first side surface A and the first side surface B and the connecting plate is an acute angle, so that when the slider slides to the end of the zipper, the tip of the open end can produce a downward movement tendency, thereby preventing the core body from moving upward and causing the slider to slip.

[0013] Furthermore, the side surface of the open end also includes a first side surface C, the first side surface A is connected to the first side surface B through the first side surface C, and the two sides of the first side surface C are connected to the first side surface A and the first side surface B respectively.

[0014] The beneficial effect of adopting the above-mentioned further technical solution is that the first side surface A is connected to the first side surface B through the first side surface C, and the first side surface C forms a blocking surface at the end of the open end. When the end of the open end moves to the end of the zipper, the first side surface C provides a blocking effect for the slider, slowing down the tendency of the slider to continue moving and preventing the slider from slipping.

[0015] Furthermore, the side surfaces of the open end include a first side surface A, a first side surface B and a first side surface C, the first side surface A and the first side surface B are connected through the first side surface C, and the first side surface A, the first side surface B and the first side surface C are an integrated curved surface.

[0016] The beneficial effect of adopting the above-mentioned further technical solution is that the first side surface A, the first side surface B and the first side surface C are an integrated curved surface. When the open end slides to the end of the zipper, the contact area between the end of the open end and the end of the zipper is larger, which can better prevent the slider from continuing to slide and causing slipping.

[0017] Furthermore, the side surfaces of the closed end include a second side surface A and a second side surface B, the second side surface A and the second side surface B are planes, the second side surface A is connected to the second side surface B, and an angle B between the second side surface A and the second side surface B is an acute angle.

[0018] The beneficial effect of adopting the above-mentioned further technical solution is that the second side A is connected to the second side B, the angle B between the second side A and the second side B is an acute angle, the end of the closed end of the sub-core body is a pointed end, and when the closed end slides to the end of the zipper, the end of the sub-core body can be inserted under the closing point of the end of the zipper and is not easy to fall out, which is beneficial to further prevent the slider from slipping.

[0019] Furthermore, an angle between a common edge B connecting the second side surface A and the second side surface B and the connecting plate is an acute angle.

[0020] The beneficial effect of adopting the above-mentioned further technical solution is that the angle between the common edge B connecting the second side A and the second side B and the connecting plate is an acute angle, so that when the slider slides to the end of the zipper, the tip of the closed end can produce a downward movement tendency, thereby preventing the core body from moving upward and causing the slider to slip.

[0021] Furthermore, the side surface of the closed end also includes a second side surface C, the second side surface A is connected to the second side surface B through the second side surface C, and the two sides of the second side surface C are connected to the second side surface A and the second side surface B respectively.

[0022] The beneficial effect of adopting the above-mentioned further technical solution is that the second side surface A is connected to the second side surface B through the second side surface C, and the second side surface C forms a blocking surface at the end of the closed end. When the end of the closed end moves to the end of the zipper, the second side surface C provides a blocking effect for the slider, slowing down the tendency of the slider to continue sliding and preventing the slider from slipping.

[0023] Furthermore, the side surfaces of the closed end include a second side surface A, a second side surface B and a second side surface C, the second side surface A and the second side surface B are connected through the second side surface C, and the second side surface A, the second side surface B and the second side surface C are an integrated curved surface.

[0024] The beneficial effect of adopting the above-mentioned further technical solution is that the second side surface A, the second side surface B and the second side surface C are an integrated curved surface, and when the closed end slides to the end of the zipper, the contact area between the end of the closed end and the end of the zipper is larger, which can better prevent the slider from continuing to slide and causing slipping.

[0025] Furthermore, the angle A is greater than the angle B, and the length of the closed end is greater than the length of the open end.

[0026] The beneficial effects of adopting the above-mentioned further technical scheme are that the length of the open end is short and the angle A between the two sides is large, and the width of the connection between the open end and the closed end is large, which can better support the toothless hook and make the bag opening smoother; the length of the closed end is long and the angle B between the two sides is small, and the closed end is slender, which is conducive to better sealing. The short length of the open end occupies a small space, and when the bag opening is sealed, the two single chains can be tightened at the closed end, and the bag opening sealing performance is better.

[0027] Furthermore, the angle between the side of the open end and the connecting plate is 70°-90°; the angle between the side of the closed end and the connecting plate is 70°-90°; the angle between the common edge A and the connecting plate is 70°-90°; and the angle between the common edge B and the connecting plate is 70°-90°.

[0028] The beneficial effect of adopting the above-mentioned further technical scheme is that when the angles between the side of the open end, the side of the closed end, the common edge A, the common edge B and the connecting plate are in the range of 70°-90°, it is conducive to better sealing and opening of the bag mouth. At the same time, within this angle range, the split core body can also be demoulded smoothly, ensuring processing efficiency without causing damage to the split core body, thereby avoiding the problem of the split core body being difficult to demould due to loss of the draft angle.

[0029] Furthermore, the first side surface A is connected to the second side surface A, and the first side surface B is connected to the second side surface B; a third side surface is also provided between the first side surface A and the second side surface A, and an angle between the third side surface and the connecting plate is an acute angle.

[0030] The beneficial effect of adopting the above-mentioned further technical solution is that the first side surface A and the second side surface A are connected and transitioned through the third side surface, so that the width of one side of the sub-core body is reduced, and the two single chains can be further tightened when the zipper is sealed, thereby avoiding that the width of the sub-core body at the connection between the open end and the closed end is too large, causing the toothless hook to be stretched out during sealing, affecting the sealing effect.

[0031] Furthermore, a demoulding through hole is provided on the limiting plate, the demoulding through hole is provided corresponding to the sub-core body, the length of the demoulding through hole is greater than the length of the sub-core body, and the height of the demoulding through hole is greater than the height of the sub-core body.

[0032] The beneficial effect of adopting the above-mentioned further technical solution is that demolding holes are provided on the two limit plates, which can be suitable for split-type mold processing sliders. Mold demolding is not affected by the angle of the split core body of the slider. Even if the split core body is not set with a draft angle, it can be demolded smoothly through the demolding holes.

[0033] Furthermore, limit blocks are respectively provided at both ends of the opposite side of the two limit plates and away from the connecting plate, and the limit blocks on the two limit plates are symmetrically arranged; two clamping blocks are symmetrically arranged on one end of the connecting plate, and the clamping blocks are arranged on one side of the closed end of the split core body.

[0034] The beneficial effect of adopting the above further technical solution is that the limit block enables the slider to be clamped on the two single chains of the zipper and provides guidance for the sliding of the slider; the clamping block clamps the two single chains when closing the zipper, so that the toothless hooks of the two single chains are fastened.

[0035] Furthermore, a protrusion is provided at an end of one of the limiting plates away from the connecting plate.

[0036] The beneficial effect of adopting the above further technical solution is that the setting of the protrusions facilitates the limiting and adjustment of the position of the slider during the transportation process when the slider is processed in batches, thereby reducing the need for manual adjustment.

[0037] Furthermore, the two limiting plates are provided with wavy ridges on the sides away from each other.

[0038] The beneficial effect of adopting the above further technical solution is that the friction force is increased, making it easier for the operator to slide the slider.

[0039] The present invention also discloses a sealed zipper assembly, comprising two single chains and the sealed zipper slider as described above; the single chains are provided with two toothless hooks and an auxiliary track; the split core body of the sealed zipper slider is located between the auxiliary track and the toothless hook close to the auxiliary track.

[0040] The beneficial effects of the present invention are that the slider is not easy to fall off and is easy to use; the slider cooperates with the two toothless hooks and the auxiliary track, and the sealing effect of the zipper is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the overall structure of the sealed zipper slider of the present invention;

[0042] Figure 2 It is a front view of the sealed zipper slider of Example 1;

[0043] Figure 3 It is a rear view of the sealed zipper slider of Example 1;

[0044] Figure 4 is a top view of the sealed zipper slider of Example 1;

[0045] Figure 5 It is a left side view of the sealed zipper slider of Example 1;

[0046] Figure 6 It is a schematic diagram of the overall structure of the split core body of Example 1;

[0047] Figure 7 It is a schematic structural diagram of the split core body of Example 1 from another angle;

[0048] Figure 8 It is a left side view of the split core body of Example 1;

[0049] Fig. 9 It is a right side view of the split core body of Example 1;

[0050] Fig.10 It is a schematic diagram of the overall structure of the split core body of Example 2;

[0051] Fig.11 It is a schematic diagram of the overall structure of the split core body of Example 3;

[0052] Fig.12 It is a schematic diagram of the overall structure of the split core body of Example 4;

[0053] Fig.13 It is a structural schematic diagram of the split core body of Example 4 from another angle;

[0054] Fig.14 Schematic diagram of the structure of the split core body of Example 4 at different angles;

[0055] Fig.15 It is a front view of the split core body of Example 4;

[0056] Fig.16 It is a rear view of the split core body of Example 4;

[0057] Fig.17 It is a schematic diagram of the overall structure of the split core body of Example 5;

[0058] Fig.18 It is a schematic diagram of the overall structure of the sub-core body of Example 6;

[0059] Fig.19 It is a front view of the split core body of Example 7;

[0060] Fig. 20 It is a left side view of the split core body of Example 7;

[0061] Fig.21 It is a right side view of the split core body of Example 7;

[0062] Fig. 22 is a top view of the sub-core body of Example 7;

[0063] Fig.23 is a schematic diagram of the overall structure of the sub-core body of Example 7;

[0064] Fig.24 It is a structural schematic diagram of a sealing zipper assembly according to a specific embodiment of the present invention;

[0065] Fig.25 for Fig.24 AA section view.

[0066] The figure markings are recorded as follows: 1-split core, 1.1-open end, 1.1.1-first side A, 1.1.2-first side B, 1.1.3-first side C, 1.2-closed end, 1.2.1-second side A, 1.2.2-second side B, 1.2.3-second side C, 1.3-third side, 2-limiting plate, 2.1-mold demolding hole, 2.2-limiting block, 3-connecting plate, 4-clamping block, 5-protrusion, 6-single chain, 6.1-toothless hook, 6.2-auxiliary rail, 6.3-hot spot. DETAILED DESCRIPTION

[0067] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0068] Example 1

[0069] like Figure 1-6 As shown, a sealed zipper slider includes a split core body 1, two limiting plates 2 and a connecting plate 3 connecting the two limiting plates 2; the two limiting plates 2 are arranged opposite to each other, and the split core body 1 is arranged on the connecting plate 3 and between the two limiting plates 2.

[0070] See also Figure 6-9The split core body 1 includes an open end 1.1 and a closed end 1.2, the open end 1.1 and the closed end 1.2 are connected, and the open end 1.1 and the closed end 1.2 are integrally formed; the angle between the side of the open end 1.1 and the connecting plate 3 is an acute angle; the angle between the side of the closed end 1.2 and the connecting plate 3 is an acute angle. The side of the open end 1.1 includes a first side A1.1.1 and a first side B1.1.2, the first side A1.1.1 and the first side B1.1.2 are planes; the first side A1.1.1 and the first side B1.1.2 are connected, and the angle A between the first side A1.1.1 and the first side B1.1.2 is an acute angle; the angle between the common edge A connecting the first side A1.1.1 and the first side B1.1.2 and the connecting plate 3 is an acute angle. The side surfaces of the closed end 1.2 include a second side surface A1.2.1 and a second side surface B1.2.2, the second side surface A1.2.1 and the second side surface B1.2.2 are planes, the second side surface A1.2.1 is connected to the second side surface B1.2.2; the angle B between the second side surface A1.2.1 and the second side surface B1.2.2 is an acute angle; the angle between the common edge B connecting the second side surface A1.2.1 and the second side surface B1.2.2 and the connecting plate 3 is an acute angle; the angle A is greater than the angle B. The length of the closed end 1.2 is greater than the length of the open end 1.1.

[0071] The angle between all sides of the open end 1.1 and the connecting plate 3 is 70°-90°; the angle between all sides of the closed end 1.2 and the connecting plate 3 is 70°-90°; the angle between the common edge A and the connecting plate 3 is 70°-90°; the angle between the common edge B and the connecting plate 3 is 70°-90°.

[0072] The first side surface A1.1.1 is connected to the second side surface A1.2.1; the first side surface B1.1.2 is connected to the second side surface B1.2.2. A third side surface 1.3 is provided between the first side surface A1.1.1 and the second side surface A1.2.1, and the two sides of the third side surface 1.3 are respectively connected to the first side surface A1.1.1 and the second side surface A1.2.1, and the angle between the third side surface 1.3 and the connecting plate 3 is an acute angle.

[0073] The limiting plate 2 is provided with a demoulding through hole 2.1, which is arranged corresponding to the sub-core body 1, has a length greater than that of the sub-core body 1, and has a height greater than that of the sub-core body 1.

[0074] The two limiting plates 2 are provided with limiting blocks 2.2 at both ends of the opposite sides and away from the connecting plate 3, and the limiting blocks 2.2 on the two limiting plates 2 are symmetrically arranged; two clamping blocks 4 are symmetrically arranged at one end of the connecting plate 3, and the two clamping blocks 4 are connected to the inner side of the limiting plates 2 on the sides away from each other, and the distance between the two clamping blocks 4 on the opposite sides is less than the maximum width of the split core body 1, and the clamping blocks 4 are arranged on one side of the closed end 1.2 of the split core body 1. A protrusion 5 is provided at the end of one of the limiting plates 2 away from the connecting plate 3. The two limiting plates 2 are provided with wavy convex edges on the sides away from each other.

[0075] Example 2

[0076] A sealed zipper slider, which is different from the first embodiment in that Fig.10 As shown, the side of the open end 1.1 also includes a first side C1.1.3, the first side A1.1.1 is connected to the first side B1.1.2 through the first side C1.1.3, and the two sides of the first side C1.1.3 are respectively connected to the first side A1.1.1 and the first side B1.1.2; the angle between the first side C1.1.3 and the connecting plate 3 is 70°-90°.

[0077] Example 3

[0078] A sealed zipper slider, which is different from the first embodiment in that Fig.11 As shown, the side of the closed end 1.2 also includes a second side C1.2.3, the second side A1.2.1 is connected to the second side B1.2.2 through the second side C1.2.3, and the two sides of the second side C1.2.3 are respectively connected to the second side A1.2.1 and the second side B1.2.2; the angle between the second side C1.2.3 and the connecting plate 3 is 70°-90°.

[0079] Example 4

[0080] A sealed zipper slider, which is different from the first embodiment in that Figure 12-16As shown, the side of the open end 1.1 also includes a first side C1.1.3, the first side A1.1.1 is connected to the first side B1.1.2 through the first side C1.1.3, and the two sides of the first side C1.1.3 are respectively connected to the first side A1.1.1 and the first side B1.1.2; the angle between the first side C1.1.3 and the connecting plate 3 is 70°-90°. The side of the closed end 1.2 also includes a second side C1.2.3, the second side A1.2.1 is connected to the second side B1.2.2 through the second side C1.2.3, and the two sides of the second side C1.2.3 are respectively connected to the second side A1.2.1 and the second side B1.2.2; the angle between the second side C1.2.3 and the connecting plate 3 is 70°-90°.

[0081] Example 5

[0082] A sealed zipper slider, which is different from the first embodiment in that Fig.17 As shown, the side surfaces of the open end 1.1 include a first side surface A1.1.1, a first side surface B1.1.2 and a first side surface C1.1.3, the first side surface A1.1.1 and the first side surface B1.1.2 are connected through the first side surface C1.1.3, and the first side surface A1.1.1, the first side surface B1.1.2 and the first side surface C1.1.3 are an integrated curved surface.

[0083] Example 6

[0084] A sealed zipper slider, which is different from the first embodiment in that Fig.18 As shown, the side surfaces of the closed end 1.2 include a second side surface A1.2.1, a second side surface B1.2.2 and a second side surface C1.2.3, the second side surface A1.2.1 and the second side surface B1.2.2 are connected through the second side surface C1.2.3, and the second side surface A1.2.1, the second side surface B1.2.2 and the second side surface C1.2.3 are an integrated curved surface.

[0085] Example 7

[0086] A sealed zipper slider, which is different from the first embodiment in that Figure 19-23As shown, the side surface of the open end 1.1 includes a first side surface A1.1.1, a first side surface B1.1.2 and a first side surface C1.1.3, the first side surface A1.1.1 and the first side surface B1.1.2 are connected through the first side surface C1.1.3, and the first side surface A1.1.1, the first side surface B1.1.2 and the first side surface C1.1.3 are an integrated curved surface. The side surface of the closed end 1.2 includes a second side surface A1.2.1, a second side surface B1.2.2 and a second side surface C1.2.3, the second side surface A1.2.1 and the second side surface B1.2.2 are connected through the second side surface C1.2.3, and the second side surface A1.2.1, the second side surface B1.2.2 and the second side surface C1.2.3 are an integrated curved surface.

[0087] like Figure 24-25 As shown, a sealed zipper assembly comprises two single chains 6 and a sealed zipper slider as described in any one of Examples 1-7; the single chains 6 are provided with two toothless hooks 6.1 and an auxiliary track 6.2; the split core body 1 of the sealed zipper slider is located between the auxiliary track 6.2 and the toothless hook 6.1 close to the auxiliary track 6.2, and when in use, the split core body 1 is located in a cavity formed by the auxiliary tracks 6.2 of the two single chains 6 and the toothless hook 6.1 close to the auxiliary track 6.2; the ends of both ends of the auxiliary track 6.2 are respectively provided with hot spots 6.3, and the hot spots 6.3 bond the ends of the auxiliary tracks 6.2 of the two single chains, and when the slider moves to the two ends of the single chain, the end of the open end 1.1 or the closed end 1.2 of the split core body 1 can be inserted under the hot spot 6.3, providing effective blocking for the slider to prevent the slider from slipping.

[0088] Anti-slip performance test of the slider of the sealed zipper assembly

[0089] A universal tensile testing machine was used to simulate the sealed zipper assembly of the present invention in use. The slider was subjected to different tensile forces at the sealed end and the open end of the zipper. The slider was tested under what tensile force the slider would slip off the zipper, thereby testing the anti-slip performance of the slider. The slider was compared with the existing sealed zipper as a comparative example, and the performance test table 1 was obtained:

[0090] Table 1 Slider anti-slip performance test table of sealed zipper assembly

[0091] Serial number Open end tension / LBS Sealing end tension / LBS Example 1 5.59 5.77 Example 2 5.57 5.7 Example 3 6.31 5.48 Example 4 6.08 5.93 Example 5 5.32 5.88 Example 6 5.59 5.86 Example 7 5.66 5.79 Existing sealed zipper 3.97 3.79

[0092] From the results obtained in Table 1, it can be seen that the pulling force required for the slider of the sealed zipper assembly of the present invention to slip off is greatly improved, which is much greater than the pulling force required for the existing slider to slip off. The slider is not easy to slip off during use, which greatly improves the service life of the sealed zipper assembly.

[0093] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealed zipper slider, comprising a split core (1), two limit plates (2) and a connecting plate (3) connecting the two limit plates (2); the two limit plates (2) are arranged opposite to each other, the split core (1) is arranged on the connecting plate (3) and between the two limit plates (2), characterized in that: The split core (1) comprises an open end (1.1) and a closed end (1.2), wherein the open end (1.1) and the closed end (1.2) are connected; the angle between the side surface of the open end (1.1) and the connecting plate (3) is an acute angle; the angle between the side surface of the closed end (1.2) and the connecting plate (3) is an acute angle, The side surfaces of the open end (1.1) include a first side surface A (1.1.1) and a first side surface B (1.1.2), wherein the first side surface A (1.1.1) and the first side surface B (1.1.2) are planes; the first side surface A (1.1.1) is connected to the first side surface B (1.1.2), The side surface of the open end (1.1) further includes a first side surface C (1.1.3), the first side surface A (1.1.1) and the first side surface B (1.1.2) are connected via the first side surface C (1.1.3), and the two sides of the first side surface C (1.1.3) are respectively connected to the first side surface A (1.1.1) and the first side surface B (1.1.2), The side surfaces of the closed end (1.2) include a second side surface A (1.2.1) and a second side surface B (1.2.2), wherein the second side surface A (1.2.1) and the second side surface B (1.2.2) are planes, and the second side surface A (1.2.1) is connected to the second side surface B (1.2.2). The side surface of the closed end (1.2) further includes a second side surface C (1.2.3), the second side surface A (1.2.1) and the second side surface B (1.2.2) are connected via the second side surface C (1.2.3), and the two sides of the second side surface C (1.2.3) are respectively connected to the second side surface A (1.2.1) and the second side surface B (1.2.2).

2. A sealed zipper assembly, characterized in that: It comprises two single chains (6) and the sealed zipper slider as claimed in claim 1.

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