Zipper and luggage

Abstract

The utility model provides a kind of zipper and luggage, comprising: two cloth belts, the width direction of each cloth belt two sides are zipper installation side and article installation side respectively;The article installation side of each cloth belt is equipped with installation component;Installation component includes support piece and multiple mounting blocks;Support piece includes positioning strip and two support strips, two support strips are respectively arranged on the two sides in the thickness direction of cloth belt, and positioning strip is connected with two support strips;The side of each support strip away from cloth belt is receiving side, and multiple mounting blocks are spaced apart on receiving side.The all mounting blocks of any side in the thickness direction of cloth belt are connected by support strip, and the setting of support strip makes installation component have rigidity, when inserting installation component into the curved portion of guide rail, it can improve the situation of flexure.

Description

Technical Field

[0001] This utility model relates to the field of zippers, and in particular to a zipper and a bag. Background Technology

[0002] Existing zippers used in bags, car seat rails, or advertising billboard rails often employ a structure that secures a flexible fabric strip to a rigid guide rail. Taking a bag as an example, the bag has an opening with two guide rails, each with a curved section. The bag zipper includes two fabric strips, each with two sides along its width: a tooth mounting side and an item mounting side. Each strip has teeth mounted on its tooth mounting side and multiple mounting brackets mounted on its item mounting side, all arranged sequentially along the length of the fabric strip. Each mounting bracket can be inserted into the corresponding guide rail. Because there is no rigid connection between adjacent mounting brackets on each strip, when the mounting bracket is inserted into the guide rail and passes through the curved section of the guide rail, it encounters resistance, causing each fabric strip to buckle. How to design a zipper that can improve the buckling problem when the fabric tape enters the curved part of the guide rail is a problem that needs to be solved by those skilled in the art. Utility Model Content

[0003] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a zipper and bag that can improve the buckling of the zipper when the fabric tape is inserted into the curved part of the guide rail.

[0004] To solve the above-mentioned technical problems, this utility model provides a zipper, comprising: two fabric strips, each fabric strip having two sides in the width direction, namely a tooth mounting side and an item mounting side; a tooth is mounted on the tooth mounting side of each fabric strip; an mounting component is provided on the item mounting side of each fabric strip, the mounting component extending along the length direction of the fabric strip; the mounting component includes a support member and a plurality of mounting blocks; the support member has a U-shaped cross-section, the support member includes a positioning strip and two support strips, the two support strips are respectively disposed on two sides in the thickness direction of the fabric strip, the two opposite sides of the positioning strip are respectively connected to the two support strips; the side of each support strip away from the fabric strip is a receiving side, and the plurality of mounting blocks are spaced apart on the receiving side; on each support strip, all the mounting blocks are sequentially arranged along the length direction of the connected support strip.

[0005] In this invention, all mounting blocks on either side of the fabric tape's thickness direction in the zipper are connected by support strips. The support strips provide rigidity to the mounting components, mitigating fabric tape buckling when the mounting components are inserted into the curved portion of the guide rail. Positioning strips connect two support strips, further enhancing the rigidity of the support components.

[0006] Preferably, a reinforcing rib is provided on the side of the positioning strip away from the fabric strip. The reinforcing rib not only improves the rigidity of the mounting component but also facilitates its processing.

[0007] Preferably, on each of the fabric strips, the mounting block on one of the support bars is arranged in a one-to-one correspondence with the mounting block on the other support bar, and the distance between the two corresponding mounting blocks in the length direction is less than or equal to 30% of the length of the mounting block. This allows the overall rigidity of the mounting component to be moderate, and the mounting component can move with the curvature of the curved part of the guide rail, so that the zipper can pass through the curved part.

[0008] Preferably, the mounting component has a mirror-symmetrical structure. This makes the mounting component easy to manufacture and install.

[0009] Preferably, the mounting block has a rectangular structure; the side of the mounting block away from the support strip is the block contact surface, and all four sides of the block contact surface are provided with rounded corner structures, so that when the four sides of the block contact surface come into contact with the inside of the guide rail, the four sides of the block contact surface will not scratch the guide rail.

[0010] Preferably, on each of the support bars, a recessed groove is formed between two adjacent mounting blocks, and the connection between the bottom of the recessed groove and the groove wall of the recessed groove is set as a rounded corner structure of the recessed part. In this way, the connection between the bottom of the recessed groove and the groove wall of the recessed groove can reduce stress concentration and improve the strength of the connection between the bottom of the recessed groove and the groove wall of the recessed groove.

[0011] Preferably, the thickness of the mounting component is H2, and the thickness of the chain tooth is H1; the relationship between the thickness H2 of the mounting component and the thickness H1 of the chain tooth is: H1 < H2 ≤ (H1 × 4). H1 < H2 ensures a larger pull force for the mounting component to detach from the fabric tape and from the guide rail, preventing the mounting component from being damaged before the chain tooth when the zipper is subjected to lateral tension. H2 ≤ (H1 × 4) ensures that the guide rail is not too thick, resulting in less resistance when the mounting component passes through the curved portion of the guide rail.

[0012] Preferably, the width of the mounting component is W2, and the width of the chain tooth is W1; the relationship between the width W2 of the mounting component and the width W1 of the chain tooth is: (W1÷2) < W2 < (W1×2). (W1÷2) < W2 results in a larger pull force for the mounting component to detach from the fabric tape, preventing the mounting component from being damaged before the chain tooth when the zipper is subjected to lateral tension. W2 < (W1×2) does not affect the smoothness of the mounting component entering the guide rail, avoiding excessive resistance when the mounting component passes through the curved part of the guide rail.

[0013] Preferably, the thickness of the support member is T2, and the thickness of the fabric tape is T1. The relationship between the thickness T2 of the support member and the thickness T1 of the fabric tape is: (T1×2)≤T2≤(T1×4). (T1×2)≤T2 ensures sufficient rigidity of the recessed groove, preventing the mounting component from arching around the recessed groove when passing through the bend of the guide rail, allowing the zipper to smoothly pass through the guide rail. T2≤(T1×4) ensures that the rigidity of the recessed groove is not excessive, allowing the mounting component to move along the curvature of the bend in the guide rail.

[0014] Preferably, the thickness of the mounting component is H2, and the length of the mounting block is P1; the relationship between the length P1 of the mounting block and the thickness H2 of the mounting component is: (H2÷4)≤P1≤(H2×4). (H2÷4)≤P1 ensures a large pull force for the mounting component to detach from the fabric tape and from the guide rail, preventing the mounting component from being damaged before the zipper teeth when the zipper is subjected to lateral tension. P1≤(H2×4) ensures moderate overall rigidity of the mounting component, allowing it to move with the curvature of the guide rail's curved portion.

[0015] Preferably, on each support bar, a recessed groove is formed between two adjacent mounting blocks, the length of the recessed groove is P2, and the length of the mounting block is P1; the relationship between the length P1 of the mounting block and the length P2 of the recessed groove is: (P1÷4)≤P2≤(P1×4). (P1÷4)≤P2 ensures moderate overall rigidity of the mounting component, allowing it to move with the curvature of the guide rail's bend, enabling the zipper to pass through the bend. P2≤(P1×4) ensures a small proportion of the recessed groove to the length of the support bar, preventing the mounting component from arching when passing through the bend of the guide rail and ensuring the zipper can pass through the guide rail.

[0016] This utility model also relates to a bag, which has an opening and two guide rails. The mounting components for the two fabric straps of the zipper are respectively inserted into the two guide rails. In this utility model's zipper, the mounting components for the fabric straps maintain the necessary flexibility when the straps pass through the bends of the guide rails. Because adjacent mounting blocks are connected by support strips, the rigidity of the gap between adjacent mounting blocks can be adjusted, preventing the fabric straps from buckling. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the zipper inserted into the guide rail in this embodiment.

[0018] Figure 2 This is a schematic diagram of the front structure when the zipper is inserted into the guide rail in this embodiment.

[0019] Figure 3 This is a three-dimensional structural diagram of the zipper in this embodiment.

[0020] Figure 4 This is a schematic diagram of the front structure of the zipper in this embodiment.

[0021] Figure 5 for Figure 4 An enlarged schematic diagram of point A.

[0022] Figure 6 This is a three-dimensional structural diagram of the zipper mounting component in this embodiment.

[0023] Figure 7 for Figure 6 An enlarged schematic diagram of point B.

[0024] Figure 8 This is a side view of the mounting component of the zipper in this embodiment.

[0025] Figure 9 This is a cross-sectional view of the zipper in the width direction of this embodiment.

[0026] Figure 10 This is a schematic cross-sectional view of the zipper along its length in this embodiment.

[0027] Figure 11 This is a schematic diagram of the structure in which interlocking chain teeth are sewn onto the two fabric strips of the zipper in this embodiment.

[0028] Figure 12 This is a schematic diagram of the structure when the interlocking teeth on the two fabric strips of the zipper in this embodiment separate.

[0029] Figure 13 This is a schematic diagram of the structure when the two fabric straps of the zipper in this embodiment are placed side by side.

[0030] Figure 14 This is a structural diagram of the injection-molded mounting component on the side of the item when the two fabric straps of the zipper are installed.

[0031] Figure 15 This is a schematic diagram of the structure when the injection-molded mounting components on the two fabric strips of the zipper in this embodiment are cut open.

[0032] Figure 16 This is a schematic diagram of the structure of the two fabric strips of the zipper in this embodiment, with the zipper teeth placed opposite each other.

[0033] Figure 17 This is a schematic diagram of the interlocking structure of the two fabric strips of the zipper in this embodiment.

[0034] The labels in the diagram are as follows: 100-Fabric tape, 101-Chain tooth mounting side, 102-Item mounting side, 200-Chain tooth, 300-Mounting component, 310-Support component, 311-Positioning strip, 312-Supporting strip, 3121-Receiving side, 320-Reinforcing rib, 330-Mounting block, 331-Block contact surface, 332-Rounded corner structure of contact surface, 340-Groove, 341-Rounded corner structure of recess, 10-Guide rail, H1-Thickness of chain tooth, H2-Thickness of mounting component, W1-Width of chain tooth, W2-Width of mounting component, T1-Thickness of fabric tape, T2-Thickness of support component, P2-Length of recess, P1-Length of mounting block. Detailed Implementation

[0035] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0036] Please refer to the accompanying drawings. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0037] In the following description, the length direction of the fabric tape 100 refers to the direction relative to the length of the tape. Figure 17The vertical direction of the paper, and the width direction of the tape 100 refer to the direction relative to the top and bottom of the paper. Figure 17 The left-right direction of the paper surface, and the thickness direction of the 100mm tape refer to the direction relative to the thickness of the tape. Figure 17 The inward and outward orientation of the paper.

[0038] like Figures 1 to 10 ,as well as Figure 17 As shown, the zipper of this embodiment includes: two fabric strips 100, each fabric strip 100 having two sides in the width direction, namely a tooth mounting side 101 and an item mounting side 102; a tooth 200 is mounted on the tooth mounting side 101 of each fabric strip 100; an mounting member 300 is provided on the item mounting side 102 of each fabric strip 100, the mounting member 300 extending along the length direction of the fabric strip 100; the mounting member 300 includes a support member 310 and a plurality of mounting blocks 330; the support member 310 has a U-shaped cross-section. It includes a positioning strip 311 and two support strips 312. The two support strips 312 are respectively disposed on two sides of the fabric strip 100 in the thickness direction. The two opposite sides of the positioning strip 311 are respectively connected to the two support strips 312. The positioning strip 311 is in contact with the fabric strip 100. The side of each support strip 312 away from the fabric strip 100 is a receiving side 3121. Multiple mounting blocks 330 are spaced apart on the receiving side 3121. On each support strip 312, all mounting blocks 330 are arranged sequentially along the length direction of the connected support strip 312.

[0039] In this invention, all mounting blocks 330 on either side of the thickness direction of the fabric tape 100 in the zipper are connected by support bars 312. The support bars 312 provide rigidity to the mounting components 300, mitigating buckling of the fabric tape 100 when the mounting components 300 are inserted into the curved portion of the guide rail 10. Positioning bars 311 connect the two support bars 312, further enhancing the rigidity of the support components 310. The two mounting components 300 are concave-convex structures located at both ends of the zipper in the width direction. By inserting the two mounting components 300 into the guide rail 10 of the bag, positioning of the zipper in the width direction can be achieved. The mounting components 300 are made of resin material.

[0040] A reinforcing rib 320 is provided on the side of the positioning strip 311 away from the fabric belt 100; the reinforcing rib 320 can improve the rigidity of the mounting component 300 and facilitate the processing of the mounting component 300.

[0041] On each fabric strip 100, mounting blocks 330 on one support bar 312 are correspondingly arranged one-to-one with mounting blocks 330 on the other support bar 312. The distance between the two corresponding mounting blocks 330 in the length direction is less than or equal to 30% of the length of the mounting block 330. This ensures that the overall rigidity of the mounting component 300 is moderate, and the mounting component 300 can move with the curvature of the curved part of the guide rail 10, allowing the zipper to pass through the curved part. In this embodiment, the distance between the two corresponding mounting blocks 330 in the length direction is 0, so the multiple mounting blocks 330 respectively arranged on both sides of the fabric strip 100 in the thickness direction are aligned one-to-one in the thickness direction of the fabric strip 100.

[0042] Mounting component 300 has a mirror-symmetrical structure. This makes mounting component 300 easy to manufacture and install.

[0043] The mounting block 330 has a rectangular structure; the side of the mounting block 330 away from the support bar 312 is the block contact surface 331. All four sides of the block contact surface 331 are provided with rounded corner structures 332. When the four sides of the block contact surface 331 come into contact with the interior of the guide rail 10, the four sides of the block contact surface 331 will not scratch the guide rail 10.

[0044] On each support bar 312, a recessed groove 340 is formed between two adjacent mounting blocks 330. The connection between the bottom of the recessed groove 340 and the groove wall of the recessed groove 340 is set as a rounded corner structure 341 of the recessed part. This reduces stress concentration at the connection between the bottom of the recessed groove 340 and the groove wall of the recessed groove 340 and improves the strength of the connection between the bottom of the recessed groove 340 and the groove wall of the recessed groove 340.

[0045] The thickness of the mounting component 300 is H2, and the thickness of the chain tooth 200 is H1. When H2 < H1, the pull force that causes the mounting component 300 to detach from the fabric tape 100 is small, and the pull force that causes the mounting component 300 to detach from the guide rail 10 is also small. Therefore, when the zipper as a whole is subjected to lateral tension, the mounting component 300 will be damaged before the chain tooth 200. When H2 > (H1 × 4), the thickness of the guide rail 10 is too thick, which will affect its use. In addition, the excessive thickness of the mounting component 300 will affect the smoothness of inserting the mounting component 300 into the guide rail 10. When passing through the curved part of the guide rail 10, the resistance is too great, causing the zipper to arch and be unable to be inserted. The relationship between the thickness H2 of the mounting component 300 and the thickness H1 of the chain tooth 200 is: H1 < H2 ≤ (H1 × 4). H1 < H2 ensures a larger pull force for the mounting component 300 to detach from the fabric tape 100 and from the guide rail 10, preventing the mounting component 300 from being damaged before the chain tooth 200 when the zipper is subjected to lateral tension. H2 ≤ (H1 × 4) ensures that the guide rail 10 is not too thick, resulting in less resistance when the mounting component 300 passes through the curved portion of the guide rail 10, allowing the mounting component 300 to smoothly enter the guide rail 10.

[0046] The width of the mounting component 300 is W2, and the width of the chain tooth 200 is W1. When W2 < (W1 ÷ 2), the pull force required to detach the mounting component 300 from the zipper belt is small. Therefore, when the zipper as a whole is subjected to lateral tension, the mounting component 300 will be damaged before the chain tooth 200. When W2 > (W1 × 2), the width of the mounting component 300 is too wide, which will affect the smoothness of the mounting component 300 entering the guide rail 10. When passing through the curved part of the guide rail 10, the resistance is too great, causing the zipper to arch and fail to enter. The relationship between the width W2 of the mounting component 300 and the width W1 of the chain tooth 200 is: (W1 ÷ 2) < W2 < (W1 × 2), (W1 ÷ 2) < W2, which makes the pull force required to detach the mounting component 300 from the fabric belt 100 larger, thus preventing the mounting component 300 from being damaged before the chain tooth 200 when the zipper as a whole is subjected to lateral tension. W2 < (W1 × 2) will not affect the smoothness of the mounting component 300 entering the guide rail 10, and will prevent the mounting component 300 from encountering greater resistance when passing through the curved part of the guide rail 10, which would cause the zipper to arch and be unable to enter the guide rail 10.

[0047] The thickness of the support member 310 is T2, and the thickness of the fabric tape 100 is T1. When T2 < (T1 × 2), the rigidity of the recessed groove 340 is relatively small. When the mounting component 300 passes through the curved part of the guide rail 10, it will arch around the recessed groove 340, preventing the zipper from passing through the guide rail 10. When T2 > (T1 × 4), the rigidity of the recessed groove 340 is relatively large. The mounting component 300 cannot move along the curvature of the curved part of the guide rail 10, preventing the zipper from passing through the curved part. The relationship between the thickness T2 of the support member 310 and the thickness T1 of the fabric tape 100 is: (T1 × 2) ≤ T2 ≤ (T1 × 4); (T1 × 2) ≤ T2, which makes the recessed groove 340 have sufficient rigidity to prevent the mounting component 300 from arching around the recessed groove 340 when passing through the curved part of the guide rail 10, so that the zipper can smoothly pass through the guide rail 10. T2≤(T1×4), so that the rigidity of the recessed groove 340 is not too large, and the mounting part 300 can move along the curvature of the curved part of the guide rail 10, so that the zipper can pass through the curved part.

[0048] The thickness of the mounting component 300 is H2, and the length of the mounting block 330 is P1. When P1 < (H2 ÷ 4), the pull force that causes the mounting component 300 to detach from the fabric tape 100 and the pull force that causes the mounting component 300 to detach from the guide rail 10 are both small. Therefore, when the zipper is subjected to lateral tension, the mounting component 300 will be damaged before the chain teeth 200. Simultaneously, if the length of the mounting block 330 is too small relative to the length of the support bar 312, the overall rigidity of the mounting component 300 will be too low. When the mounting component 300 passes through the bend of the guide rail 10, it will arch, preventing the zipper from passing through the guide rail 10. When P1 > (H2 × 4), the overall rigidity of the mounting component 300 is too high. The mounting component 300 will be in a rigid state and will not be able to move with the curvature of the bend in the guide rail 10, preventing the zipper from passing through the bend. The relationship between the length P1 of the mounting block 330 and the thickness H2 of the mounting component 300 is: (H2÷4)≤P1≤(H2×4); (H2÷4)≤P1 ensures that the pull force for the mounting component 300 to detach from the tape 100 and the pull force for the mounting component 300 to detach from the guide rail 10 are both large, preventing the mounting component 300 from being damaged before the chain teeth 200 when the zipper as a whole is subjected to lateral tension. P1≤(H2×4) ensures that the overall rigidity of the mounting component 300 is moderate, allowing the mounting component 300 to move with the curvature of the curved part of the guide rail 10, thus enabling the zipper to smoothly pass into the guide rail 10.

[0049] On each support bar 312, a recessed groove 340 is formed between two adjacent mounting blocks 330. The length of the recessed groove 340 is P2, and the length of the mounting block 330 is P1. When P2 < (P1 ÷ 4), the overall rigidity of the mounting component 300 is too strong, and the mounting component 300 will be in a rigid state. The mounting component 300 cannot move with the curvature of the curved part of the guide rail 10, causing the zipper to be unable to pass through the curved part. When P2 > (P1 × 4), the proportion of the recessed groove 340 to the length of the support bar 312 is too large, resulting in a smaller overall rigidity of the mounting component 300. When the mounting component 300 passes through the curved part of the guide rail 10, it will arch up, causing the zipper to be unable to pass through the guide rail 10. The relationship between the length P1 of the mounting block 330 and the length P2 of the recessed groove 340 is: (P1÷4)≤P2≤(P1×4); (P1÷4)≤P2 ensures that the overall rigidity of the mounting component 300 is moderate, allowing the mounting component 300 to move with the curvature of the curved portion of the guide rail 10, enabling the zipper to pass through the curved portion. P2≤(P1×4) ensures that the proportion of the recessed groove 340 to the length of the support strip 312 is small, preventing the mounting component 300 from arching when passing through the curved portion of the guide rail 10, and ensuring that the zipper can pass through the guide rail 10.

[0050] The bag in this embodiment has an opening with two guide rails 10. The mounting parts 300 of the two fabric straps 100 of the zipper are respectively inserted into the two guide rails 10. The mounting parts 300 can be smoothly installed in the guide rails 10.

[0051] The zipper in this embodiment can also be installed in the car seat rail or the advertising curtain wall rail.

[0052] In this embodiment, the thickness H1 of the chain tooth 200 is preferably 1.7 mm, the thickness H2 of the mounting component 300 is 3.6 mm, the width W1 of the chain tooth 200 is 4.4 mm, the width W2 of the mounting component 300 is 2.85 mm, the thickness T1 of the fabric tape 100 is 0.6 mm, the thickness T2 of the support 310 is 1.4 mm, the length P2 of the recessed groove 340 is 2.6 mm, and the length P1 of the mounting block 330 is 2.4 mm.

[0053] In the zipper of this utility model, the mounting component 300 of the fabric tape 100 can maintain the required flexibility of the fabric tape 100 when passing through the curved part of the guide rail 10. On the other hand, in the mounting component 300, two adjacent mounting blocks 330 are connected by a support strip 312, which can adjust the rigidity of the gap between the two adjacent mounting blocks 330 and prevent the fabric tape 100 from buckling.

[0054] like Figures 11 to 17 As shown, the zipper manufacturing method of this embodiment includes the following steps:

[0055] Step 1: Sew interlocking chain teeth 200 onto the two fabric strips 100;

[0056] Step 2: Separate the interlocking chain teeth 200 on the two fabric strips 100;

[0057] Step 3: Place the two items with the fabric straps 100 on the side 102 facing each other;

[0058] Step 4: Place the two fabric strips 100 on the mold, and injection mold the mounting parts 300 on the item mounting sides 102 of the two fabric strips 100.

[0059] Step 5: Cut the injection-molded mounting parts 300 on the two fabric tapes 100;

[0060] Step 6: Place the chain teeth 200 of the two fabric strips 100 facing each other;

[0061] Step 7: Engage the two fabric strips 100 with the chain teeth 200.

[0062] In summary, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0063] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A zipper, characterized in that, include: Two fabric strips (100), each fabric strip (100) having two sides in the width direction, namely a tooth mounting side (101) and an item mounting side (102); a tooth (200) is mounted on the tooth mounting side (101) of each fabric strip (100); an mounting component (300) is provided on the item mounting side (102) of each fabric strip (100), the mounting component (300) extending along the length direction of the fabric strip (100); the mounting component (300) includes a support member (310) and a plurality of mounting blocks (330); the cross-section of the support member (310) is a U-shaped structure, the support member (310) includes A positioning strip (311) and two support strips (312) are provided. The two support strips (312) are respectively disposed on two sides of the fabric strip (100) in the thickness direction. The two opposite sides of the positioning strip (311) are respectively connected to the two support strips (312). The side of each support strip (312) away from the fabric strip (100) is a receiving side (3121). A plurality of mounting blocks (330) are spaced apart on the receiving side (3121). On each support strip (312), all the mounting blocks (330) are arranged sequentially along the length direction of the connected support strip (312).

2. The zipper according to claim 1, characterized in that: The positioning strip (311) is provided with a reinforcing rib (320) on the side away from the fabric strip (100).

3. The zipper according to claim 1, characterized in that: On each of the fabric strips (100), the mounting block (330) on one of the support strips (312) is provided in a one-to-one correspondence with the mounting block (330) on the other support strip (312), and the distance between the two corresponding mounting blocks (330) in the length direction is less than or equal to 30% of the length of the mounting block (330).

4. The zipper according to claim 1, characterized in that: The mounting component (300) has a mirror-symmetric structure.

5. The zipper according to claim 1, characterized in that: The mounting block (330) has a rectangular structure; the side of the mounting block (330) away from the support strip (312) is the block contact surface (331), and the four sides of the block contact surface (331) are provided with a rounded corner structure (332).

6. The zipper according to claim 1, characterized in that: On each of the support bars (312), a recessed groove (340) is formed between two adjacent mounting blocks (330), and the connection between the bottom of the recessed groove (340) and the groove wall of the recessed groove (340) is set as a recessed rounded corner structure (341).

7. The zipper according to claim 1, characterized in that: The thickness of the mounting component (300) is H2, and the thickness of the chain tooth (200) is H1; the relationship between the thickness H2 of the mounting component (300) and the thickness H1 of the chain tooth (200) is: H1 < H2 ≤ (H1 × 4).

8. The zipper according to claim 1, characterized in that: The width of the mounting component (300) is W2, and the width of the chain tooth (200) is W1; the relationship between the width W2 of the mounting component (300) and the width W1 of the chain tooth (200) is: (W1÷2)<W2<(W1×2).

9. The zipper according to claim 1, characterized in that: The thickness of the support member (310) is T2, and the thickness of the cloth strip (100) is T1. The relationship between the thickness T2 of the support member (310) and the thickness T1 of the cloth strip (100) is: (T1×2)≤T2≤(T1×4).

10. The zipper according to claim 1, characterized in that: The thickness of the mounting component (300) is H2, and the length of the mounting block (330) is P1; the relationship between the length P1 of the mounting block (330) and the thickness H2 of the mounting component (300) is: (H2÷4)≤P1≤(H2×4).

11. The zipper according to claim 1, characterized in that: On each of the support bars (312), a recessed groove (340) is formed between two adjacent mounting blocks (330), the length of the recessed groove (340) is P2, and the length of the mounting block (330) is P1; the relationship between the length P1 of the mounting block (330) and the length P2 of the recessed groove (340) is: (P1÷4)≤P2≤(P1×4).

12. A bag, wherein the bag has an opening and two guide rails (10) are provided on the opening, characterized in that: The mounting components (300) of the two fabric strips (100) of the zipper as described in any one of claims 1 to 9 are respectively inserted into the two guide rails (10).

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