Telescopic locking pull piece and pull head
By designing a telescopic locking tab that is movable to the lock head and limit buffer, the only problem of determining the lock head position in the existing zipper is solved, and the flexible connection of the lock head in different states of the suitcase is realized, which improves the convenience and stability of use.
Patent Information
- Application Number
- CN202311764268.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-20
- Publication Date
- 2025-06-27
AI Technical Summary
The lock head in the existing zipper is usually integrally formed at the outer end of the pull tab, resulting in the position of the lock head in the length direction of the pull tab, which cannot adapt to the connection needs of the lock head and the password lock in the suitcase with expansion function, and the lock head position is immutable, so that the lock head may not be inserted well after sewing the zipper.
A telescopic locking pull tab is designed, including a pull tab body, a lock head and a limit buffer member having a pull head connection at one end. A slide groove extending along its length direction is opened in the pull tab body. The lock head is movably connected to the slide groove in the extension direction of the slide groove. The lock head is connected to the slide groove through the installation port, and the installation port is sealed by the limit buffer member after the lock head is installed to ensure the sliding connection of the lock head.
The position of the lock head in the length direction of the pull tab is realized, which can adapt to the connection needs of the lock head and the password lock in the non-expanded and expanded state of the suitcase, improve the convenience of use, and improve the stability of the lock head and the wear resistance of the pull tab through the buffering effect of the limit buffer.
Smart Images
Figure CN120203330A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of zippers, and particularly to a telescopic locking tab and a slider including the telescopic locking tab. Background Art
[0002] Currently, most suitcases are equipped with a password lock and a zipper for opening and closing the suitcase. A lock head is fixedly provided on the tab of the zipper. Through the cooperative connection between the lock head and the password lock, the suitcase is locked, improving the safety of using the suitcase.
[0003] Furthermore, some suitcases also have an expansion function. When there are fewer items placed in the suitcase, the expansion function is not required. At this time, the vertical distance between the slider body of the zipper for opening and closing the suitcase and the password lock is a first spacing; when more items need to be placed in the suitcase, the expansion function needs to be used to expand the internal accommodation space of the suitcase. At this time, the vertical distance between the slider body of the zipper for opening and closing the suitcase and the password lock is a second spacing. Generally, the first spacing of the suitcase in the non-expanded state is smaller than the second spacing in the expanded state. This requires that the position of the lock head in the length direction of the tab is variable to simultaneously satisfy the connection between the lock head and the password lock in both the first spacing and second spacing states. However, in existing zippers, the lock head is usually integrally formed at the outer end of the tab, resulting in the position of the lock head in the length direction of the tab being uniquely determined, making it not well-suited for the above-mentioned suitcases with an expansion function.
[0004] In addition, after the zipper is sewn on the suitcase, there may be a deviation between the actual sewing position of the zipper and the ideal position. For a zipper with an unchangeable lock head position, there is a problem that the lock head cannot be well inserted into the password lock during subsequent use. Summary of the Invention
[0005] In view of the above-mentioned disadvantages of the prior art, the purpose of the present invention is to provide a telescopic locking tab, enabling the position of the lock head to be variable in the length direction of the telescopic locking tab.
[0006] To achieve the above purpose, the present invention provides a telescopic locking tab, including a tab body having a slider connection portion at one end, a lock head, and a limiting and buffering member. A chute extending along the length direction of the tab body is formed in the tab body. The lock head is movably connected to the chute along the extending direction of the chute. An installation opening communicating with the chute is formed at the end of the chute of the tab body. The lock head is connected to the chute through the installation opening. The limiting and buffering member is fixed to the tab body and blocks the installation opening. Both the tab body and the lock head are metal parts, and the limiting and buffering member is a plastic part.
[0007] In this telescopic locking slider, the lock head is movably connected to the chute along the extending direction of the chute. Therefore, the position of the lock head in the extending direction of the chute is variable, that is, the position of the lock head in the length direction of the telescopic locking slider is variable. Thus, on the one hand, when the zipper equipped with this telescopic locking slider is used to open and close a suitcase with an expansion function, the distance between the lock head of the zipper and the slider body is variable, so that the lock head can be well connected to the password lock on the suitcase in both the non-expanded state and the expanded state of the suitcase, improving the convenience of use. On the other hand, regardless of whether the suitcase has an expansion function, when the zipper equipped with this telescopic locking slider is used to open and close the suitcase, the variability of the lock head position can well offset the deviation of the actual sewing position of the zipper, enabling the lock head to be well connected to the password lock on the suitcase and improving the convenience of use.
[0008] Furthermore, by providing the installation opening, the lock head can be conveniently connected to the chute. After the installation of the lock head is completed, a limit buffer is used to block the installation opening to prevent the lock head from detaching from the chute, reliably maintaining the slidable connection relationship between the lock head and the chute. During subsequent use, when the lock head slides relative to the chute, the sliding component in the chute will abut against the limit buffer. The limit buffer is a plastic part with certain elasticity, thus playing a better buffering role. Moreover, the slider body and the lock head are both metal parts, effectively improving the structural strength and wear resistance of the slider body and the lock head themselves, that is, improving the overall structural strength and wear resistance of the telescopic locking slider, making the telescopic locking slider durable.
[0009] In the telescopic locking slider involved in this application, the lock head can be directly connected to the chute, or the lock head can be indirectly connected to the chute through other components. The following provides two preferred structures.
[0010] Structure One: The lock head is indirectly connected to the chute through a sliding link. Based on this, the telescopic locking slider further includes a sliding link. The sliding link is movably assembled in the chute along the extending direction of the chute. The lock head is integrally formed at one end of the sliding link and is distributed outside the slider body. The other end of the sliding link is inserted into the chute through the installation opening. The sliding link is a metal part. By providing the sliding link, the lock head can be placed outside the chute, and the position of the lock head can be within the required range without making the slider body very long, that is, the length of the slider body can be relatively shortened. Moreover, after the lock head is placed outside the chute, the connection between the lock head and the password lock is carried out outside the slider body, and the slider body will not interfere with the locking of the lock head, facilitating the locking operation of the lock head. At the same time, the sliding link and the lock head are of an integrally formed structure and are an integral metal part, with high product structural strength and wear resistance, and are durable.
[0011] In the above technical solution, the preferred structure for the sliding link to be inserted into the sliding groove through the installation opening is as follows: along the width direction of the tab body, the width of the sliding groove is smaller than the width of the installation opening, so that the tab body has sliding support portions on both sides in the width direction of the sliding groove; the sliding link includes a link main body portion, a connecting column portion and a limiting wing plate portion. The locking head is integrally formed at one end of the link main body portion. The connecting column portion and the limiting wing plate portion are integrally formed at the other end of the link main body portion in sequence along the thickness direction of the tab body. The installation opening allows the connecting column portion and the limiting wing plate portion to pass through. The connecting column portion is movably accommodated in the sliding groove, and the link main body portion and the limiting wing plate portion are clamped on both sides of the sliding support portion along the thickness direction of the tab body. In this way, the sliding link is reliably held in the sliding groove.
[0012] The preferred solution of the above technical solution is that: there is a clearance fit between the connecting column portion and the sliding groove, which can not only enable the sliding link to smoothly slide in the sliding groove, but also prevent the sliding link from generating large offsets in the width direction of the sliding groove.
[0013] The preferred solution of the above technical solution is that: a guiding groove parallel to the sliding groove is formed on the surface of the tab body. The link main body portion is slidably accommodated in the guiding groove. The setting of the guiding groove further provides guidance for the movement of the sliding link in the sliding groove and further prevents the sliding link from generating large offsets in the width direction of the sliding groove.
[0014] Structure Two: The locking head is directly connected to the sliding groove, then the locking head is assembled in the sliding groove, that is, the locking head is built in the sliding groove. This structure is simple. Although the tab body needs to be made longer, the number of components in the telescopic locking tab is reduced, and the cost is lowered.
[0015] In the above technical solution, the preferred structure for the locking head to be inserted into the sliding groove through the installation opening is as follows: along the width direction of the tab body, the width of the sliding groove is smaller than the width of the installation opening, so that the tab body has sliding support portions on both sides in the width direction of the sliding groove; the locking head includes a locking head main body portion and a locking head connecting portion connected in sequence. The installation opening allows the locking head main body portion and / or the locking head connecting portion to pass through. A connecting card slot parallel to the sliding groove is formed on the locking head connecting portion. The sliding support portion is clamped in the connecting card slot. In this way, the locking head is reliably held in the sliding groove.
[0016] In the above technical solution, the installation opening is formed at one end of the sliding groove close to the pull head connecting portion. Then, the tab body only forms an installation opening at one end of the sliding groove, and the other end of the sliding groove is blocked by the self-structure of the tab body. When the sliding link abuts against the limit buffer member, or when the locking head abuts against the limit buffer member, there is a minimum distance between the locking head and the pull head body.
[0017] In the retractable locking tab involved in the present application, there are also various fixing methods for the limit buffer member and the tab body.
[0018] Method 1: The limit buffer member is fixed to the tab body by injection molding, and the fixing is more reliable. Moreover, reinforcing connection holes are formed on the tab body, and the reinforcing connection holes are distributed on one side of the installation opening facing away from the sliding groove; after the limit buffer member is injection molded, a part of the limit buffer member is embedded in the reinforcing connection holes, further improving the reliability of the fixed connection between the limit buffer member and the tab body, and thus improving the reliability of keeping the sliding link in the sliding groove.
[0019] Method 2: After the limit buffer member is formed, it is snap-fitted onto the tab body; at this time, the limit buffer member includes a cover plate portion, side wall portions extending along the thickness direction of the tab body from both sides of the cover plate portion, and anti-detachment claws extending from the inner sides of the side wall portions. The cover plate portion covers the front surface of the tab body, the side wall portions cover the side surfaces of the tab body, and the anti-detachment claws are snap-fitted to the back surface of the tab body, thereby reliably fixing the limit buffer member to the tab body.
[0020] In the retractable locking tab involved in the present application, since the limit buffer member is a plastic part, it is easy to print a LOGO on the surface of the limit buffer member, so that the surface of the limit buffer member is provided with a LOGO, enriching the functions of the retractable locking tab.
[0021] The present application also provides a slider, which includes a slider body and the retractable locking tab as described above, and the tab connection portion of the tab body is connected to the slider body.
[0022] As described above, the retractable locking tab and the slider involved in the present invention have the following beneficial effects:
[0023] In the retractable locking tab involved in the present application, the lock head is movably connected to the sliding groove along the extending direction of the sliding groove, so the position of the lock head in the extending direction of the sliding groove is variable, that is, the position of the lock head in the length direction of the retractable locking tab is variable. Thus, on the one hand, when the zipper equipped with the retractable locking tab is used to open and close a suitcase with an expansion function, the distance between the lock head of the zipper and the slider body is variable, so that the lock head can be well connected to the password lock on the suitcase in both the non-expanded state and the expanded state of the suitcase, improving the convenience of use; on the other hand, regardless of whether the suitcase has an expansion function, when the zipper equipped with the retractable locking tab is used to open and close the suitcase, the variable position of the lock head can well offset the deviation of the actual sewing position of the zipper, so that the lock head can be well connected to the password lock on the suitcase, improving the convenience of use.
[0024] Furthermore, by providing an installation opening, the lock head can be conveniently connected to the sliding groove. After the lock head is installed, a limiting and buffering member is used to seal the installation opening to prevent the lock head from detaching from the sliding groove, and reliably maintain the slidable connection relationship between the lock head and the sliding groove. During subsequent use, when the lock head slides relative to the sliding groove, the sliding member in the sliding groove will abut against the limiting and buffering member. The limiting and buffering member is a plastic part with a certain elasticity, thus playing a good buffering role. Moreover, the pull tab body and the lock head are both metal parts, effectively improving the structural strength and wear resistance of the pull tab body and the lock head themselves, that is, improving the overall structural strength and wear resistance of the retractable locking pull tab, making the retractable locking pull tab durable. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 FIG. 1 is a schematic structural diagram of the first embodiment of the retractable locking pull tab in the present application.
[0026] Figure 2 is Figure 1 an exploded view of FIG. 1.
[0027] Figure 3 is Figure 1 a top view of FIG. 1.
[0028] Figure 4 is Figure 1 a schematic diagram of the state when the sliding link in FIG. 1 extends backward to the longest.
[0029] Figure 5 is Figure 1 a schematic structural diagram of the sliding link and the lock head in FIG. 1.
[0030] Figure 6 is Figure 1 a schematic structural diagram of the pull tab body in FIG. 1.
[0031] Figure 7 FIG. 2 is a schematic structural diagram of the second embodiment of the retractable locking pull tab in the present application.
[0032] Figure 8 is Figure 7 an exploded view of FIG. 2.
[0033] Figure 9 is Figure 7 a top view of FIG. 2.
[0034] Figure 10 and Figure 11 are respectively Figure 7 a top view and a bottom view of the pull tab body in FIG. 2.
[0035] Figure 12 and Figure 13 are respectively Figure 7 a front view and a bottom view of the limiting and buffering member in FIG. 2.
[0036] Figure 14 and Figure 15 are respectively Figure 7 the side view and the front view of the lock head in
[0037] Figure 16 is a schematic structural view of the slider of the second embodiment of the retractable locking tab configured in the present application.
[0038] Figure 17 is a schematic structural view of the third embodiment of the retractable locking tab in the present application, in which the lock head and the sliding link are omitted.
[0039] Figure 18 is a schematic structural view of the fourth embodiment of the retractable locking tab in the present application, in which the lock head is omitted.
[0040] Figure 19 is a schematic structural view of the fifth embodiment of the retractable locking tab in the present application, in which the lock head and the sliding link are omitted.
[0041] Figure 20 is a schematic structural view of the sixth embodiment of the retractable locking tab in the present application, in which the lock head is omitted.
[0042] Description of Component Labels
[0043] 10 Slider Connection Portion
[0044] 11 Mounting Connection Hole
[0045] 20 Tab Main Body
[0046] 21 Slide Groove
[0047] 22 Mounting Opening
[0048] 23 Sliding Support Portion
[0049] 24 Guide Groove
[0050] 25 Reinforcement Connection Hole
[0051] 26 Sealing End
[0052] 27 Positioning Card Slot
[0053] 28 Claw Receiving Groove
[0054] 30 Lock Head
[0055] 31 Lock Head Main Body Portion
[0056] 32 Lock Head Connection Portion
[0057] 33 Connection Card Slot
[0058] 40 Limit Buffer
[0059] 41 Cover Plate Portion
[0060] 42 Side wall part
[0061] 43 Anti - detachment claw
[0062] 44 Buffer part extension
[0063] 50 Sliding connecting rod
[0064] 51 Connecting rod main body part
[0065] 52 Connecting column part
[0066] 53 Limiting wing plate part
[0067] 60 Pull - tab body
[0068] 61 Upper wing plate
[0069] 62 Lower wing plate
[0070] 63 Chain tooth passage
[0071] 64 Pull - tab connecting part Detailed implementation manners
[0072] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.
[0073] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the limited conditions under which the present invention can be implemented. Therefore, they do not have substantial technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" used in this specification are only for the convenience of description and are not used to limit the scope under which the present invention can be implemented. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present invention can be implemented.
[0074] It should also be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as "connected to" another element, it can be directly connected to the other element or can also be indirectly connected to the other element through an intermediate element.
[0075] In addition, the descriptions involving "first", "second", etc. in this application are for descriptive purposes only, and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0076] This application relates to the technical field of zippers and discloses a slider for a zipper. As Figure 16 shown, the slider includes a slider body 60 and a telescopic locking tab, and one end of the telescopic locking tab is mounted on the surface of the slider body 60. For the convenience of description, in the following embodiments, the definitions of each direction are as follows: the length direction of the telescopic locking tab is defined as the front-back direction, the width direction of the telescopic locking tab is defined as the left-right direction, and the thickness direction of the telescopic locking tab is defined as the up-down direction. Based on this, Figure 3 and Figure 9 in the views shown, the upper side and the lower side of the paper surface are the front direction and the back direction respectively, the left side and the right side of the paper surface are the left direction and the right direction respectively, and the front side and the back side of the paper surface are the up direction and the down direction respectively. In addition, the length direction, width direction, and thickness direction of the slider are consistent with the length direction, width direction, and thickness direction of the telescopic locking tab respectively.
[0077] As Figure 16 shown, the slider body 60 includes an upper wing plate 61 and a lower wing plate 62 that are connected up and down along its thickness direction, a tooth path 63 formed between the upper wing plate 61 and the lower wing plate 62, and a tab connection portion 64 fixed on the upper surface of the upper wing plate 61, and the tab connection portion 64 is connected to the telescopic locking tab.
[0078] As Figures 1 to 3 shown, or as Figures 7 to 9As shown in the figure, the telescopic locking tab involved in the present application includes a tab body 20, a lock head 30, and a limit buffer 40. Among them, a pull head connecting portion 10 is provided at the front end of the tab body 20. The pull head connecting portion 10 is a ring structure, and an installation connection hole 11 is opened in the middle. A sliding groove 21 extending forward and backward along its length direction is opened in the tab body 20. The lock head 30 is connected to the sliding groove 21 so as to be movable forward and backward along the extension direction of the sliding groove 21. The lock head 30 is used to be connected to the password lock on the luggage to play a locking role. The tab body 20 is provided with an installation opening 22 at at least one end of the two ends in the length direction of the sliding groove 21. The installation opening 22 communicates with the sliding groove 21, and the lock head 30 is connected to the sliding groove 21 through the installation opening 22. After the lock head 30 is installed, the limit buffer 40 is fixed to the tab body 20 and seals the installation opening 22. The tab body 20 and the lock head 30 are both metal parts, and the limit buffer 40 is a plastic part. Then the limit buffer 40 can be made of materials such as hard plastic, soft plastic, and rubber. Correspondingly, the limit buffer 40 can be a hard plastic part, or a soft plastic part, or a rubber part.
[0079] When the telescopic locking tab is connected to the pull head body 60, the pull head connecting portion 10 at the front end of the tab body 20 is sleeved on the tab connecting portion 64 of the pull head body 60 through its installation connection hole 11, thereby connecting the tab body 20 to the pull head body 60. By holding the telescopic locking tab, the pull head can be conveniently pulled forward and backward along the length direction of the zipper, thereby closing or opening the zipper.
[0080] In the above telescopic locking tab, the lock head 30 is connected to the sliding groove 21 so as to be movable forward and backward along the extension direction of the sliding groove 21. Then the front and rear positions of the lock head 30 in the extension direction of the sliding groove 21 are variable, that is, the front and rear positions of the lock head 30 in the length direction of the telescopic locking tab are variable, so that the lock head 30 is a telescopic structure in the front and rear directions. In this way, when the zipper equipped with the telescopic locking tab is used to open and close a luggage with an expansion function, the distance between the lock head 30 and the pull head body 60 can be changed by the forward and backward movement of the lock head 30: Figure 3 or Figure 9Taking the viewing angle as an example, when the trunk does not require the expansion function, move the lock head 30 forward towards the slider body 60 to shorten the distance between the lock head 30 and the slider body 60, which is suitable for connecting the lock head 30 to the password lock on the trunk in the non-expanded state of the trunk; when the trunk requires the expansion function, move the lock head 30 backward away from the slider body 60 to increase the distance between the lock head 30 and the slider body 60, which is suitable for connecting the lock head 30 to the password lock on the trunk in the expanded state of the trunk. Therefore, in this application, by moving the lock head 30 back and forth relative to the tab body 20, the lock head 30 can be well connected to the password lock on the trunk both in the non-expanded state and the expanded state of the trunk, improving the convenience of use and meeting the requirement of the trunk with the expansion function for the variable position of the lock head 30 in the zipper, or rather, meeting the requirement of the trunk with the expansion function for the variable distance between the lock head 30 and the slider body 60 in the zipper. Furthermore, regardless of whether the trunk has the expansion function, when the zipper equipped with this telescopic locking tab is used to open and close the trunk, the variable position of the lock head 30 back and forth can well offset the deviation of the actual sewing position of the zipper, allowing a larger deviation of the actual sewing position of the zipper, ensuring that the lock head 30 can be well connected to the password lock on the trunk, and improving the convenience and safety of use.
[0081] Furthermore, in the above telescopic locking tab, by opening the installation opening 22 on the tab body 20, the lock head 30 can be conveniently connected to the sliding groove 21. After the installation of the lock head 30 is completed, by setting the limit buffer 40 to block the installation opening 22, the lock head 30 is prevented from detaching from the sliding groove 21, and the slidable connection relationship between the lock head 30 and the sliding groove 21 is reliably maintained. In subsequent use, when the lock head 30 slides back and forth relative to the sliding groove 21, when the sliding member in the sliding groove 21 slides to the installation opening 22, it will abut against the limit buffer 40. The limit buffer 40 is a plastic part, a soft part, and has a certain elasticity, thus playing a better buffering role. Both the tab body 20 and the lock head 30 are metal parts, so the tab body 20 and the lock head 30 both have good self-structural strength and wear resistance, thereby improving the overall structural strength and wear resistance of the telescopic locking tab and making the telescopic locking tab durable.
[0082] Furthermore, in the above telescopic locking tab, the lock head 30 can be directly connected to the sliding groove 21, or the lock head 30 can be indirectly connected to the sliding groove 21 through other components; the limit buffer 40 can be directly injection-molded on the tab body 20, or can be fixed to the tab body 20 after being injection-molded first. Based on the different connection structures between the lock head 30 and the sliding groove 21, and the different fixing structures between the limit buffer 40 and the tab body 20, the telescopic locking tab has multiple embodiments. Three preferred embodiments of the telescopic locking tab are provided below.
[0083] The First Embodiment of the Telescopic Locking Tab
[0084] As shown in Figures 1 to 3 In the first embodiment of the telescopic locking tab, the lock head 30 is indirectly connected to the sliding groove 21 through the sliding link 50. Thus, in addition to the above-mentioned tab body 20, lock head 30 and limit buffer member 40, the first embodiment of the telescopic locking tab further includes a sliding link 50. The sliding link 50 is assembled in the sliding groove 21 so as to be movable back and forth along the extending direction of the sliding groove 21. The lock head 30 is integrally formed at the rear end of the sliding link 50. The lock head 30 is distributed outside the tab body 20, that is, the lock head 30 is an external structure relative to the tab body 20 and the sliding groove 21. The front end of the sliding link 50 is inserted into the sliding groove 21 through the mounting opening 22, and the sliding link 50 is a metal part.
[0085] In the first embodiment of the telescopic locking tab, by providing the sliding link 50 directly assembled in the sliding groove 21 and the structure in which the lock head 30 is integrally formed at the rear end of the sliding link 50, the front-back sliding of the lock head 30 relative to the sliding groove 21 is realized, so that the lock head 30 can extend backward and retract forward relative to the tab body 20, and at the same time, the lock head 30 can be externally placed relative to the tab body 20 and the sliding groove 21. After the lock head 30 adopts an external structure, on the one hand, by using a shorter tab body 20 and through the sliding link 50, the position of the lock head 30 can be changed within the required front-back range, without making the tab body 20 longer, thus relatively shortening the length of the tab body 20; on the other hand, the connection between the lock head 30 and the password lock is carried out outside the tab body 20, and the tab body 20 will not interfere with the locking of the lock head 30, which is convenient for the locking operation of the lock head 30. At the same time, the sliding link 50 and the lock head 30 are of an integrally formed structure and are an integrally formed metal part, with high product structural strength, wear resistance and long service life.
[0086] Further, the mounting opening 22 can be opened at the front end and the rear end of the sliding groove 21, or can be opened only at the front end or the rear end of the sliding groove 21. In the first embodiment of the telescopic locking tab, as shown in Figure 6 In the figure, the tab body 20 only opens the mounting opening 22 at the front end of the sliding groove 21 close to the pull head connection part 10. The tab body 20 is provided with a blocking end 26 at the rear end of the sliding groove 21. The front end and the rear end of the sliding groove 21 are respectively blocked by the limit buffer member 40 and the blocking end 26. During the process that the sliding link 50 slides back and forth in the sliding groove 21 to make the lock head 30 expand and contract relative to the tab body 20: when the sliding link 50 slides forward to the front end of the sliding groove 21 and abuts against the limit buffer member 40, as shown in Figure 1 In the figure, the limit buffer member 40 can buffer and limit the further forward movement of the sliding link 50. At this time, the minimum distance exists between the lock head 30 and the pull head body 60; when the sliding link 50 slides backward to the rear end of the sliding groove 21 and abuts against the blocking end 26, as shown inFigure 4 As shown, the plugging end 26 restricts the further backward movement of the sliding link 50. At this time, the maximum distance exists between the lock head 30 and the pull tab main body 60.
[0087] Furthermore, the preferred structure for the sliding link 50 to be inserted into the sliding groove 21 through the installation opening 22 is as follows: As Figure 6 shown, in the left-right direction, the width of the sliding groove 21 is smaller than the width of the installation opening 22, so that the pull tab main body 20 has sliding support portions 23 on both the left and right sides in the width direction of the sliding groove 21. As Figure 5 shown, the sliding link 50 includes a link main body portion 51, a connecting column portion 52, and a limiting wing plate portion 53. The link main body portion 51 extends forward and backward. The lock head 30 is integrally formed at the rear end of the link main body portion 51. The connecting column portion 52 is integrally formed at the front end of the link main body portion 51 and extends vertically in the thickness direction of the pull tab main body 20. The limiting wing plate portion 53 is integrally formed at the lower end of the connecting column portion 52 in the thickness direction of the pull tab main body 20; the installation opening 22 allows the connecting column portion 52 and the limiting wing plate portion 53 to pass through. When installing the sliding link 50, first insert the limiting wing plate portion 53 and the connecting column portion 52 at the front end of the sliding link 50 into the installation opening 22 in sequence, then move the sliding link 50 backward so that the connecting column portion 52 is accommodated in the sliding groove 21, and finally install the limiting buffer member 40 at the installation opening 22, thereby completing the installation of the sliding link 50 with the lock head 30 at the rear end. After the installation is completed, the connecting column portion 52 is accommodated in the sliding groove 21 in a slidable manner in the front-back direction, and the link main body portion 51 and the limiting wing plate portion 53 are respectively clamped on the upper side and the lower side of the sliding support portion 23 in the thickness direction of the pull tab main body 20, so as to reliably hold the sliding link 50 in the sliding groove 21.
[0088] Preferably, a clearance fit is provided between the connecting column portion 52 and the sliding groove 21, which can not only enable the sliding link 50 to slide smoothly in the sliding groove 21, but also prevent the sliding link 50 from generating a large offset in the width direction of the sliding groove 21.
[0089] Furthermore, as Figure 1 and Figure 6 shown, the link main body portion 51 is arranged on the upper surface of the pull tab main body 20, that is, the front surface; a guiding groove 24 parallel to the sliding groove 21 is formed on the upper surface of the pull tab main body 20, and the rear end of the guiding groove 24 penetrates the pull tab main body 20 backward. The link main body portion 51 is slidably accommodated in the guiding groove 24. The arrangement of the guiding groove 24 can better provide guidance for the front-back movement of the sliding link 50 in the sliding groove 21, and can also prevent the sliding link 50 from generating a large offset in the width direction of the sliding groove 21.
[0090] Furthermore, in the first embodiment of the telescopic locking pull tab, the limiting buffer member 40 is fixed on the pull tab main body 20 by injection molding, and the fixation is more reliable. And, as Figure 3As shown, the left edge of the limit buffer 40 does not extend beyond the left edge of the tab body 20 to the left, and the right edge of the limit buffer 40 does not extend beyond the right edge of the tab body 20 to the right. Preferably, as Figure 6 As shown, a reinforcement connection hole 25 penetrating up and down is formed at the front end of the tab body 20. The reinforcement connection holes 25 are distributed between the mounting connection holes 11 and the mounting opening 22, that is, on the front side of the mounting opening 22 facing away from the sliding groove 21. After the limit buffer 40 is injection-molded, a part of the limit buffer 40 is necessarily embedded in the reinforcement connection hole 25, thereby improving the reliability of the fixed connection between the limit buffer 40 and the tab body 20, and further improving the reliability of holding the sliding link 50 in the sliding groove 21.
[0091] Furthermore, in the first embodiment of the telescopic locking tab, the tab body 20 is an integral member, and the sliding link 50 formed with the lock head 30, the connecting column portion 52, and the limiting wing portion 53 is also an integral member. In particular, both the tab body 20 and the sliding link 50 are zinc alloy castings and are made by zinc alloy injection casting.
[0092] Second Embodiment of the Telescopic Locking Tab
[0093] As Figures 7 to 9 shown, in the second embodiment of the telescopic locking tab, the lock head 30 is directly connected to the sliding groove 21, so the lock head 30 is assembled in the sliding groove 21, and the lock head 30 is an internal structure with respect to the tab body 20 and the sliding groove 21. This structure is simple. Although the tab body 20 needs to be made longer, the number of components in the telescopic locking tab is reduced, and the cost is lowered. In particular, the internal structure of the lock head 30 can better prevent the lock head 30 from being disengaged, deformed, damaged, etc. due to lateral force.
[0094] As Figure 8 and Figure 10 shown, in the second embodiment of the telescopic locking tab, the setting method of the mounting opening 22 is the same as that in the first embodiment of the telescopic locking tab, that is, the tab body 20 only forms a mounting opening 22 at the front end of the sliding groove 21 close to the pull head connection portion 10. The tab body 20 is provided with a blocking end portion 26 at the rear end of the sliding groove 21, and the front end and the rear end of the sliding groove 21 are blocked by the limit buffer 40 and the blocking end portion 26 respectively. During the forward and backward sliding of the lock head 30 in the sliding groove 21: when the lock head 30 slides forward to the front end of the sliding groove 21 and abuts against the limit buffer 40, the limit buffer 40 can buffer and limit the further forward movement of the lock head 30. At this time, there is a minimum distance between the lock head 30 and the pull head body 60; when the lock head 30 slides backward to the rear end of the sliding groove 21 and abuts against the blocking end portion 26, the blocking end portion 26 restricts the further backward movement of the lock head 30. At this time, there is a maximum distance between the lock head 30 and the pull head body 60.
[0095] Further, the preferred structure for installing the lock head 30 into the sliding groove 21 through the installation opening 22 is as follows: As Figure 10 and Figure 11 shown, along the left - right direction, the width of the sliding groove 21 is smaller than the width of the installation opening 22, so that the tab body 20 has sliding support portions 23 on both the left and right sides in the width direction of the sliding groove 21. As Figure 14 and Figure 15 shown, the lock head 30 includes a lock head main body portion 31 and a lock head connecting portion 32 connected in sequence. The installation opening 22 allows the lock head main body portion 31 and / or the lock head connecting portion 32 to pass through. Connecting card slots 33 parallel to the sliding groove 21 are formed on both the left and right sides of the lock head connecting portion 32. The connecting card slots 33 are preferably arc - shaped slots. When installing the lock head 30, insert the lock head main body portion 31 of the lock head 30 downward into the installation opening 22 until the connecting card slots 33 on the lock head connecting portion 32 are aligned with the sliding support portions 23 front - to - back; then move the lock head 30 backward so that the lock head connecting portion 32 is accommodated in the sliding groove 21. Finally, install the limit buffer member 40 at the installation opening 22, thereby completing the installation of the lock head 30. After installation, the lock head connecting portion 32 is accommodated in the sliding groove 21 so as to be movable back and forth, and the sliding support portions 23 are clamped in the connecting card slots 33 on both the left and right sides of the lock head connecting portion 32, thereby reliably holding the lock head 30 in the sliding groove 21.
[0096] Further, in the second embodiment of the telescopic locking tab, the limit buffer member 40 is first injection - molded and then snap - fitted onto the tab body 20. As Figure 12 and Figure 13 shown, the injection - molded limit buffer member 40 includes a cover plate portion 41, side wall portions 42 extending downward along the thickness direction of the tab body 20 from both the left and right sides of the cover plate portion 41, and anti - detachment claws 43 extending from the inner sides of the side wall portions 42. The anti - detachment claws 43 are arranged at the middle position of the side wall portions 42 in the front - to - back direction. The cover plate portion 41 covers the upper surface (i.e., the front surface) of the tab body 20, the two side wall portions 42 respectively cover the left side surface and the right side surface of the tab body 20, and the anti - detachment claws 43 are snap - fitted onto the lower surface (i.e., the back surface) of the tab body 20, thereby reliably fixing the limit buffer member 40 on the tab body 20 and sealing the installation opening 22. Preferably, as Figure 10 and Figure 11 shown, positioning card slots 27 are provided at the left and right edges of the tab body 20, and the side wall portions 42 of the limit buffer member 40 are snap - fitted into the positioning card slots 27, facilitating the installation of the limit buffer member 40; a claw receiving groove 28 communicating with the positioning card slots 27 is provided on the lower surface of the tab body 20, and the anti - detachment claws 43 are accommodated in the claw receiving groove 28, reducing the sense of foreign object protrusion on the lower surface of the telescopic locking tab and improving the comfort of use.
[0097] Further, in the second embodiment of the telescopic locking tab, the tab body 20 is an integral member, and the lock head 30 is also an integral member. In particular, both the tab body 20 and the lock head 30 are zinc alloy castings and are made by zinc alloy injection casting. Combining with the built-in structure where the lock head 30 is directly connected to the sliding groove 21, the tab body 20 surrounds the lock head 30. Since both are metal parts, they have very good visual integrity.
[0098] Further, in the first embodiment and the second embodiment of the telescopic locking tab, the installation opening 22 is provided at the front end of the sliding groove 21 close to the tab connection part 10, that is, the installation opening 22 is provided on the non-pulling-out side of the lock head 30 in the length direction of the sliding groove 21. The telescopic locking tab is mainly used on a suitcase with an expansion function. When the thickness of the suitcase is increased by expansion, the lock head 30 needs to be pulled backward along the extension direction of the sliding groove 21. If the installation opening 22 is provided on the pulling-out side (i.e., the rear side) of the lock head 30 in the length direction of the sliding groove 21, the lock head 30 will be damaged by the tension and then the lock head 30 will be disengaged from the installation opening 22. Therefore, in this application, the installation opening 22 is provided at the front end of the sliding groove 21 close to the tab connection part 10, which can well prevent the lock head 30 from disengaging from the installation opening 22.
[0099] The third embodiment of the telescopic locking tab and the fourth embodiment of the telescopic locking tab
[0100] The limiting and buffering member 40 in the first embodiment of the telescopic locking tab is lengthened as a whole to obtain the third embodiment of the telescopic locking tab as shown in Figure 17 The limiting and buffering member 40 in the second embodiment of the telescopic locking tab is lengthened as a whole to obtain the fourth embodiment of the telescopic locking tab as shown in Figure 18 Therefore, in the third embodiment and the fourth embodiment of the telescopic locking tab, the length of the sliding groove 21 becomes shorter, and the length of the installation opening 22 in the tab body 20 increases, thereby increasing the overall length of the limiting and buffering member 40. In this way, the limiting and buffering member 40 has a larger area, especially a larger surface area. Since the limiting and buffering member 40 is a plastic part, after the surface area of the limiting and buffering member 40 increases, it is convenient and easy to print a LOGO on the surface of the limiting and buffering member 40, so that the surface of the limiting and buffering member 40 is provided with a LOGO or a drawing, which can be more eye-catching, and further enriches the functions of the telescopic locking tab.
[0101] In addition, in the fourth embodiment of the telescopic locking tab, after the limiting and buffering member 40 is lengthened as a whole, the positioning card slot 27 will also become longer accordingly, which increases the area of the clamping part between the limiting and buffering member 40 and the positioning card slot 27, improves the fixing reliability of the limiting and buffering member 40, and effectively avoids the detachment of the limiting and buffering member 40.
[0102] Embodiment Five of the Telescopic Locking Tab and Embodiment Six of the Telescopic Locking Tab
[0103] Partially lengthen the limiting buffer member 40 in Embodiment One of the above-mentioned telescopic locking tab to obtain the telescopic locking tab as shown in Figure 19 Embodiment Five. Partially lengthen the limiting buffer member 40 in Embodiment Two of the above-mentioned telescopic locking tab to obtain the telescopic locking tab as shown in Figure 20 Embodiment Six. Therefore, in Embodiment Five of the telescopic locking tab and Embodiment Six of the telescopic locking tab, as shown in Figure 19 and Figure 20 shown, a buffer member extension part 44 extending backward is integrally provided on the rear side of the limiting buffer member 40, and the buffer member extension part 44 covers the front section of the sliding groove 21; the setting of the buffer member extension part 44 can limit the moving range of the lock head 30, reduce the moving range of the lock head 30, and is applicable to occasions where the lock head 30 does not need to move too much.
[0104] In summary, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.
[0105] The above embodiments are only illustrative of the principles and effects of the present invention and are not used to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.
Claims
1. A telescopic locking tab, comprising a tab body (20) with a pull head connecting portion (10) at one end, characterized in that: It further includes a lock head (30) and a limit buffer (40). A chute (21) extending along its length direction is formed in the pull tab body (20). The lock head (30) is movably connected to the chute (21) along the extending direction of the chute (21). An installation opening (22) communicating with the chute (21) is formed at the end of the pull tab body (20) at the chute (21). The lock head (30) is connected to the chute (21) through the installation opening (22). The limit buffer (40) is fixed to the pull tab body (20) and seals the installation opening (22); both the pull tab body (20) and the lock head (30) are metal parts, and the limit buffer (40) is a plastic part.
2. The telescopic locking tab according to claim 1, wherein: It further includes a sliding link (50). The sliding link (50) is movably assembled in the chute (21) along the extending direction of the chute (21). The lock head (30) is integrally formed at one end of the sliding link (50) and is distributed outside the pull tab body (20). The other end of the sliding link (50) is inserted into the chute (21) through the installation opening (22). The sliding link (50) is a metal part.
3. The telescopic locking tab according to claim 2, wherein: Along the width direction of the pull tab body (20), the width of the chute (21) is smaller than the width of the installation opening (22), so that the pull tab body (20) has sliding support parts (23) on both sides in the width direction of the chute (21); the sliding link (50) includes a link main body part (51), a connecting column part (52) and a limit wing plate part (53). The lock head (30) is integrally formed at one end of the link main body part (51). The connecting column part (52) and the limit wing plate part (53) are integrally formed at the other end of the link main body part (51) in sequence along the thickness direction of the pull tab body (20). The installation opening (22) allows the connecting column part (52) and the limit wing plate part (53) to pass through. The connecting column part (52) is movably accommodated in the chute (21). The link main body part (51) and the limit wing plate part (53) are clamped on both sides of the sliding support part (23) along the thickness direction of the pull tab body (20).
4. The retractable locking tab according to claim 3, characterized in that: A clearance fit is provided between the connecting column part (52) and the chute (21).
5. The retractable locking tab according to claim 3, wherein: A guiding groove (24) parallel to the chute (21) is formed on the surface of the pull tab body (20). The link main body part (51) is slidably accommodated in the guiding groove (24).
6. The telescopic locking tab according to claim 1, wherein: The lock head (30) is assembled in the chute (21).
7. The telescopic locking tab according to claim 6, wherein: Along the width direction of the pull tab body (20), the width of the chute (21) is smaller than the width of the installation opening (22), so that the pull tab body (20) has sliding support parts (23) on both sides in the width direction of the chute (21); the lock head (30) includes a lock head main body part (31) and a lock head connecting part (32) connected in sequence. The installation opening (22) allows the lock head main body part (31) and / or the lock head connecting part (32) to pass through. A connecting clamping groove (33) parallel to the chute (21) is formed on the lock head connecting part (32). The sliding support part (23) is clamped in the connecting clamping groove (33).
8. The telescopic locking tab according to claim 1 or 2 or 6, characterized in that: The installation opening (22) is formed at one end of the sliding groove (21) close to the slider connecting portion (10).
9. The telescopic locking tab according to claim 1, wherein: The limiting and buffering member (40) is fixed on the slider body (20) by injection molding.
10. The telescopic locking tab according to claim 1 or 9, characterized in that: Reinforcing connection holes (25) are formed in the slider body (20). The reinforcing connection holes (25) are distributed on one side of the installation opening (22) facing away from the sliding groove (21), and a part of the limiting and buffering member (40) is embedded in the reinforcing connection holes (25).
11. The telescopic locking tab according to claim 1, characterized in that: The limiting and buffering member (40) is snap-connected to the slider body (20). The limiting and buffering member (40) includes a cover plate portion (41), side wall portions (42) extending along the thickness direction of the slider body (20) from both sides of the cover plate portion (41), and anti-detachment claws (43) extending from the inner sides of the side wall portions (42). The cover plate portion (41) covers the front surface of the slider body (20), the side wall portions (42) cover the side surfaces of the slider body (20), and the anti-detachment claws (43) are snap-connected to the back surface of the slider body (20).
12. The telescopic locking tab according to claim 1, characterized in that: The surface of the limiting and buffering member (40) is provided with a LOGO.
13. A slider, comprising a slider body (60), characterized in that: It further includes the telescopic locking slider according to any one of claims 1-12, and the slider connecting portion (10) of the slider body (20) is connected to the slider main body (60).