Zipper square bolt installed without punching tongue
By arranging slots and staggered protrusions on the zipper block and the latch body, the problems of poor corrosion resistance and insufficient clamping strength in the prior art are solved, achieving more stable clamping and extending service life.
Patent Information
- Application Number
- CN202423015335.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-12-06
AI Technical Summary
Existing zipper square pins produce cross-sections during the stamping and cutting process, resulting in poor corrosion resistance and difficulty in achieving ideal clamping strength, affecting service life and installation stability.
The zipper block latch design does not require a punched tongue for installation. By providing multiple slots and staggered protrusions on the zipper block and the latch body, the protrusions are engaged and embedded in the zipper tape, enhancing the clamping force and eliminating the punched tongue cutting process.
It improves corrosion resistance, simplifies installation process, ensures stable clamping strength, prevents zipper tape from detaching under tension in various directions, and extends service life.
Smart Images
Figure CN223323096U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of zippers, and more particularly to a zipper block latch which does not require a tongue for installation. Background Art
[0002] The current method for installing and clamping metal zipper block latches is to place the block and latch over the zipper tape and then tighten them, causing the wrapping walls on both sides of the tape to squeeze and deform toward the tape. The side edges of the wrapping wall openings are aligned with the tape, preventing the tape from being pulled out of the block and latch when the zipper tape is subjected to lateral tension. Simultaneously, tongues are punched and cut in one or more locations on the block and latch wrapping. The cut tongues are then embedded in the tape, preventing the block and latch from being pulled out of the tape and tape when subjected to vertical tension.
[0003] Because the square latch undergoes surface corrosion protection and decoration (electroplating and painting) before installation, the stamping and cutting process creates a fractured surface, exposing the original metal material. This section inherently has poor corrosion resistance, shortening the product's lifespan. Furthermore, because the clamping strength of the square latch is affected by the stroke, angle, area, and position of the stamping and cutting process, achieving an ideal clamping state is difficult. Utility Model Content
[0004] The present invention overcomes two deficiencies of the zipper square latch in the prior art: (1) a cross section is generated during the punching and cutting process, and the original metal material is exposed at the cross section. The cross section itself has poor corrosion resistance, which reduces the service life of the product; (2) the clamping strength of the square latch is affected by the stroke, angle area, and position of the punching and cutting process, making it difficult to achieve an ideal clamping state. The present invention provides a zipper square latch that does not require a punching tongue for installation. The punching and cutting process is omitted while ensuring the clamping performance of the square latch, so the surface of the square latch is no longer damaged and no punching cross section is generated, thereby greatly improving the corrosion resistance after installation. At the same time, the installation process of the square latch can be simplified and the stability of the clamping strength can be ensured.
[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a zipper block latch that does not require tongue punching for installation, comprising:
[0006] The zipper block body has a first slot and a second slot on both sides thereof; both side walls of the first slot are provided with a plurality of first protrusions;
[0007] A first wrapping wall and a second wrapping wall are provided at one end of the first slot, the first wrapping wall and the second wrapping wall cooperate to form a third slot, and the third slot is connected to the first slot; a plurality of second protrusions are provided on both sides of the third slot;
[0008] The latch body cooperates with the second slot, a fourth slot is provided on one side of the latch body along its length direction, and a plurality of third protrusions are provided on both sides of the fourth slot, and the third protrusions on both sides are staggered.
[0009] The present invention provides a first protrusion and a second protrusion within the first and third slots, respectively, of the zipper block body. During the clamping process of the first and third slots, the first and second protrusions engage and embed with the zipper tape, thereby strengthening the clamping force and enabling the zipper tape to be more stably clamped within the third and first slots. Similarly, a fourth slot is provided on the latch body to clamp the zipper tape. During the clamping process, the third protrusion engages and embeds with the zipper tape, thereby strengthening the clamping force and enabling the zipper tape to be more stably clamped within the fourth slot. This eliminates the need for punching and cutting tongues, thereby avoiding the problems that arise from such a process.
[0010] Preferably, the first protrusions on the side walls on both sides of the first slot are staggered.
[0011] Preferably, the second protrusions on the side walls on both sides of the third slot are staggered.
[0012] Preferably, the third protrusions on the side walls on both sides of the fourth slot are staggered.
[0013] Preferably, the outer surfaces of the zipper block body are all rounded and smooth.
[0014] Preferably, the outer surfaces of the latch body are rounded and smooth.
[0015] Preferably, the second slot is closed at an end away from the third slot.
[0016] Compared to the prior art, the present invention has the following advantages: by providing first and second protrusions within the first and third slots, respectively, of the zipper block body, the first and second protrusions engage and embed within the zipper tape during clamping of the first and third slots, thereby strengthening the clamping force and enabling the zipper tape to be more stably clamped within the third and first slots. This prevents the zipper tape from being separated from the zipper block body when subjected to a vertical tensile force F1 (the direction of the tensile force is the same as the lengthwise direction of the first and third slots). Furthermore, because the first and second protrusions are embedded within the zipper tape, even if the zipper is subjected to a transverse tensile force F2 perpendicular to the first and third slots (the direction of the tensile force is perpendicular to the lengthwise direction of the first and third slots), the force F2 can be sufficiently resisted, thereby eliminating the need for punching and cutting tongues.
[0017] Similarly, a fourth slot is provided on the latch body to clamp the zipper tape. During the clamping process, the third protrusion engages and embeds the zipper tape, thereby strengthening the clamping force on the zipper tape and ensuring a more stable clamping of the zipper tape within the fourth slot. This prevents the zipper tape from being separated from the latch body when subjected to a vertical tensile force F1 (the direction of the tensile force is the same as the length of the fourth slot). Furthermore, because the third protrusion is embedded in the zipper tape, even if the zipper is subjected to a transverse tensile force F2 perpendicular to the fourth slot (the direction of the tensile force is perpendicular to the length of the fourth slot), the tensile force F2 is sufficiently resisted, thus eliminating the need for punching and cutting tongues. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a three-dimensional structural diagram of the zipper block main body of the present utility model.
[0019] Figure 2 It is a three-dimensional structural diagram of the zipper block main body of the present invention from another angle.
[0020] Figure 3 This is a front view of the zipper block main body of the present utility model.
[0021] Figure 4 It is a top view of the zipper block main body of the present utility model.
[0022] Figure 5 It is a three-dimensional structural diagram of the latch body of the present utility model.
[0023] Figure 6 It is a front view of the latch body of the present utility model.
[0024] Figure 7 It is a top view of the latch body of the present utility model.
[0025] In the figure: 1, zipper block body, 11, first slot, 111, first protrusion, 112, first clamping surface, 113, second clamping surface, 12, second slot, 13, first wrapping wall, 14, second wrapping wall, 15, third slot, 151, second protrusion, 152, third clamping surface, 153, fourth clamping surface;
[0026] 2. Pin body, 21. Fourth slot, 211. Third protrusion, 212. Fifth clamping surface, 213. Sixth clamping surface. DETAILED DESCRIPTION
[0027] The following is a further detailed description of the technical solution of the present invention through specific embodiments and in conjunction with the accompanying drawings: Example 1: Referring to Figures 1 to 7 As shown, a zipper block latch that does not require a tongue to be installed, including:
[0028] The zipper block body 1 has a first slot 11 and a second slot 12 on both sides thereof; both side walls of the first slot 11 are provided with a plurality of first protrusions 111;
[0029] A first wrapping wall 13 and a second wrapping wall 14 are provided at one end of the first slot 11. The first wrapping wall 13 and the second wrapping wall 14 cooperate to form a third slot 15. The third slot 15 is connected to the first slot 11. A plurality of second protrusions 151 are provided on both sides of the third slot 15.
[0030] The latch body 2 cooperates with the second slot 12 , and a fourth slot 21 is provided on one side of the latch body along its length direction. A plurality of third protrusions 211 are provided on both sides of the fourth slot 21 , and the third protrusions 211 on both sides are staggered.
[0031] The first slot 11 is flanked by a first clamping surface 112 and a second clamping surface 113, respectively. A first protrusion 111 is provided on each of the first and second clamping surfaces 112, 113. The first protrusion 111 protrudes from the first and second clamping surfaces 112, 113. The first protrusion 111 can be of any shape, such as a convex needle, a frustum, or a cone. In this embodiment, the first protrusion 111 is configured as an elongated ridge, the length of which is perpendicular to the length of the first slot 11.
[0032] The second slot 12 is used in conjunction with the latch body 2. Therefore, the end of the second slot 12 away from the third slot 15 is closed. When the latch body 2 is inserted into the second slot 12, the end of the latch body 2 abuts against the closed end of the second slot 12, and the closed end limits the latch body 2.
[0033] The third slot 15 is flanked by a third clamping surface 152 and a fourth clamping surface 153. A second protrusion 151 is provided on each of the third and fourth clamping surfaces 152, 153. The second protrusion 151 protrudes from the third and fourth clamping surfaces 152, 153. The second protrusion 151 can be configured in any shape, such as a convex needle, a frustum, or a cone protruding from the first and second clamping surfaces 112, 113. In this embodiment, the second protrusion 151 is a tooth, and the tooth is provided along the length of the third slot 15.
[0034] During use, the zipper tape is inserted into the first slot 11 and the third slot 15, clamping the first clamping surface 112 and the second clamping surface 113 together, and clamping the third clamping surface 152 and the fourth clamping surface 153 together, thereby clamping the zipper tape. During the clamping process, the first protrusion 111 and the second protrusion 151 engage and embed the zipper tape, thereby strengthening the clamping force and allowing the zipper tape to be more stably clamped in the third slot 15 and the first slot 11. This prevents the zipper tape from being separated from the zipper block body 1 when subjected to a vertical tensile force F1 (the direction of the tensile force is the same as the longitudinal direction of the first slot 11 and the third slot 15). In addition, since the first protrusion 111 and the second protrusion 151 are embedded in the zipper tape, even if the zipper is subjected to a lateral pulling force F2 perpendicular to the first slot 11 and the third slot 15 (the pulling direction is perpendicular to the length direction of the first slot 11 and the third slot 15), it can sufficiently resist the pulling force F2, thereby eliminating the work of punching and cutting the tongue.
[0035] In one embodiment, the first protrusions 111 are staggered on the side walls of the first slot 11. The first protrusions 111 are staggered on the side walls of the first slot 11, so that when the side walls of the first slot 11 are clamped on the zipper tape, a better clamping effect can be achieved.
[0036] In one embodiment, the second protrusions 151 are staggered on the side walls of the third slot 15. The second protrusions 151 are staggered on the side walls of the third slot 15, so that when the side walls of the third slot 15 are clamped on the zipper tape, a better clamping effect can be achieved.
[0037] During use, the latch body 2 is inserted into the second slot 12 and used in conjunction with the zipper block body 1. The sidewalls of the fourth slot 21 of the latch body 2 are formed by a fifth clamping surface 212 and a sixth clamping surface 213, respectively. Third protrusions 211 are provided on each of the fifth and sixth clamping surfaces 212, 213. These protrusions 211 project from the fifth and sixth clamping surfaces 212, 213, and can take any shape, such as a convex needle, a frustum, or a cone. In this embodiment, the third protrusions are also ridges, with the length of the ridges perpendicular to the length of the fourth slot 21.
[0038] During use, the zipper tape is inserted into the fourth slot 21, clamping the fifth clamping surface 212 and the sixth clamping surface 213 together, thereby clamping the zipper tape. During the clamping process, the third protrusion 211 engages and embeds the zipper tape, thereby strengthening the clamping force on the zipper tape and ensuring a more stable clamping of the zipper tape within the fourth slot 21. This prevents the zipper tape from being separated from the latch body 2 when subjected to a vertical tensile force F1 (the direction of the tensile force is the same as the longitudinal direction of the fourth slot 21). In addition, because the third protrusion 211 is embedded in the zipper tape, even if the zipper is subjected to a transverse tensile force F2 perpendicular to the fourth slot 21 (the direction of the tensile force is perpendicular to the longitudinal direction of the fourth slot 21), the tensile force F2 is sufficiently resisted, thus eliminating the need for punching and cutting tongues.
[0039] In one embodiment, the third protrusions 211 are staggered on the side walls of the fourth slot 21. The third protrusions 211 are staggered on the side walls of the fourth slot 21, so that when the side walls of the fourth slot 21 are clamped on the zipper tape, a better clamping effect can be achieved.
[0040] In one embodiment, the outer surfaces of the zipper block body 1 and the latch body 2 are both rounded and smooth. The rounded and smoothed edges of the zipper block body 1 and the latch body 2 provide a more aesthetically pleasing surface and a better feel.
[0041] The present invention provides a first protrusion 111 and a second protrusion 151 within the first and third slots 11, 15 of the zipper block body, respectively. When the first and third slots 11, 15 clamp the zipper tape, the first and second protrusions 111, 151 engage and embed with the tape, strengthening the clamping force and ensuring a more stable clamping of the zipper tape within the third and first slots 15, 11. This prevents the zipper tape from being pulled away from the zipper block body 1 when subjected to a vertical tensile force F1 (the direction of the tensile force is the same as the longitudinal direction of the first and third slots 11, 15). Furthermore, because the first and second protrusions 111, 151 are embedded within the tape, even if the zipper is subjected to a transverse tensile force F2 perpendicular to the first and third slots 11, 15 (the direction of the tensile force is perpendicular to the longitudinal direction of the first and third slots 11, 15), the force F2 is sufficiently withstood, eliminating the need for punching and cutting tongues.
[0042] Similarly, a fourth slot 21 is provided on the latch body 2, which clamps the zipper tape. During the clamping process, the third protrusion 211 engages and embeds the zipper tape, thereby strengthening the clamping force on the zipper tape and ensuring a more stable clamping of the zipper tape within the fourth slot 21. This prevents the zipper tape from being separated from the latch body 2 when subjected to a vertical tensile force F1 (the direction of the tensile force is the same as the longitudinal direction of the fourth slot 21). Furthermore, because the third protrusion 211 is embedded in the zipper tape, even if the zipper is subjected to a transverse tensile force F2 perpendicular to the fourth slot 21 (the direction of the tensile force is perpendicular to the longitudinal direction of the fourth slot 21), the tensile force F2 is sufficiently resisted, thus eliminating the need for punching and cutting tongues.
[0043] The above-described embodiments are only preferred solutions of the present invention and do not limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.
Claims
1. A zipper square latch that does not require a tongue for installation, characterized by: include: The zipper block body has a first slot and a second slot on both sides thereof; both side walls of the first slot are provided with a plurality of first protrusions; A first wrapping wall and a second wrapping wall are provided at one end of the first slot, the first wrapping wall and the second wrapping wall cooperate to form a third slot, and the third slot is connected to the first slot; a plurality of second protrusions are provided on both sides of the third slot; The latch body cooperates with the second slot, a fourth slot is provided on one side of the latch body along its length direction, and a plurality of third protrusions are provided on both sides of the fourth slot, and the third protrusions on both sides are staggered.
2. The zipper block latch for installation without tongue punching according to claim 1, characterized in that: The first protrusions on the side walls on both sides of the first slot are arranged alternately.
3. The zipper block latch without tongue installation according to claim 1, characterized in that: The second protrusions on the side walls on both sides of the third slot are arranged alternately.
4. The zipper block latch without tongue-punching installation according to claim 1, characterized in that: The third protrusions on the side walls on both sides of the fourth slot are arranged alternately.
5. The zipper block latch for installation without tongue punching according to any one of claims 1 to 4, characterized in that: The outer surfaces of the zipper cube body are all rounded and smooth.
6. The zipper block latch according to any one of claims 1 to 4, characterized in that: The outer surface of the latch body is rounded and smooth.
7. The zipper block latch according to any one of claims 1 to 4, wherein: The second slot is closed and located away from the end of the third slot.