Buckle device and adhesive film box with same

Abstract

The application provides a buckle device and a film box. The buckle device comprises a mounting base, a pressing assembly and a matching piece. The pressing assembly comprises a first connecting rod connected with the mounting base, a second connecting rod connected with the first connecting rod, and a pressing piece mounted at one end of the second connecting rod. The first connecting rod comprises a connecting arm, a first pivot point for pivotally connecting the connecting arm with the mounting base, and a second pivot point for pivotally connecting the connecting arm with the second connecting rod. The pressing piece and the matching piece have a first state of mutual pressing and a second state of mutual separation. In the first state, the second pivot point is located at the upper rear side of the first pivot point. The structure of the buckle device can improve the structural strength and stability of the mutual cooperation of two components, especially can secondarily lock and fix two components of the film box, and improve the structural strength and stability of the film box during the transportation or storage of the film.

Description

Technical Field

[0001] This application relates to the technical field of film transport vehicles, and more particularly to a snap-fit ​​device and a film box having the same. Background Technology

[0002] Currently, most companies in the market use film boxes for storage and transportation of film packaging. Film boxes include a base and support base plates located on the front and back sides. The support plates are equipped with U-shaped support grooves for supporting the film. This type of film box can facilitate the safe transportation of film, but it has the problem of occupying a lot of space when the film box is idle or transported empty.

[0003] Chinese patent (CN220997448U) discloses a film box with foldable support bases on its front and rear sides. The support bases can be locked or unlocked depending on whether they need to be flipped or not. Locking is achieved through a locking assembly, with positioning blocks engaging in positioning grooves. To unlock, the support base is pulled upwards until the positioning blocks disengage from the grooves, allowing for the flipping action. However, this locking method carries the risk of failure due to vibrations during transport.

[0004] In view of this, it is necessary to design a snap-fit ​​device and a film box with it to solve one of the above problems. Summary of the Invention

[0005] This application provides a snap-fit ​​device and a film box having the same, which further locks two components of the film box, improving the structural strength and stability of the film box during transportation.

[0006] To achieve the above objectives, the technical solution provided in this application is as follows:

[0007] This application provides a latching device, the latching device comprising:

[0008] Mounting base;

[0009] The clamping assembly includes a first link pivotally connected to a mounting base, a second link pivotally connected to the first link, and a clamping member fixedly installed at the end of the second link away from the first link. The first link includes a connecting arm, a first pivot point pivotally connecting the connecting arm to the mounting base, and a second pivot point pivotally connecting the connecting arm to the second link. The first pivot point is located at one end of the connecting arm.

[0010] The mating component is located below the mounting base. The clamping component and the mating component have a first state of mutual clamping and a second state of mutual separation. In the first state, the second pivot point is located above and behind the first pivot point.

[0011] Furthermore, the first link includes a pair of connecting arms, a first pivot point located outside the pair of connecting arms, and a second pivot point located between the pair of connecting arms.

[0012] Furthermore, the first link also includes an operating part connected to the end of the connecting arm away from the first pivot point, the height of the operating part exceeding the upper end of the mounting base and bent away from the mounting base.

[0013] Furthermore, the second connecting rod includes a connecting rod located between the pair of connecting arms, a pivot hole at one end of the connecting rod, and a pivot shaft that mates with the pivot hole. The pivot shaft is connected between the pair of connecting arms, and the clamping member is installed at the other end of the connecting rod away from the pivot hole.

[0014] Furthermore, the mating component includes a base and a pressure tongue extending laterally from the upper part of the base, and the clamping component is provided with a clearance space for the pressure tongue to be inserted.

[0015] Furthermore, the pressure tongue forms an acute angle with the base, and the clearance space extends through the pressure member along its thickness direction.

[0016] Furthermore, the pressure tongue and the base form a slot, and the distance between the first pivot point and the second pivot point is not less than the depth of the slot.

[0017] This application also provides a film box, the film box comprising:

[0018] Base plate;

[0019] A pair of support substrates are disposed on both sides of the base plate. Each support substrate includes a support body and support columns connected to both sides of the support body. Each support substrate has at least a folded state folded above the base plate and a support state perpendicular to the base plate.

[0020] A fixing assembly for mounting a support base plate on a base plate, the fixing assembly including a fixing plate fixed to the base plate and pivotally connected to the support column, and a limiting block for limiting the movement between the support column and the fixing plate;

[0021] As described above, the snap-fit ​​device is used to prevent the fixing component from becoming loose.

[0022] Furthermore, the limiting block is fixed on the support column, and the fixing plate is provided with a limiting groove for limiting the upper and lower movement of the limiting block. The fixing assembly also includes a positioning hole on the support column, a movable hole on the fixing plate corresponding to the positioning hole, and a positioning bolt passing through the positioning hole and the movable hole. The movable hole is elongated, and the support column carries the positioning bolt and moves along the length direction of the movable hole to release the limitation of the fixing plate on the support column, thereby switching the state of the support substrate.

[0023] Furthermore, the base plate includes two pairs of frame edges, the mounting base is fixedly connected to the side of the fixing plate, and the mating component is fixedly connected to the frame edges.

[0024] Compared with related technologies, the beneficial effects of this application are as follows: by using the buckle device of this application, the structural strength and stability of the two components are improved, especially the two components of the film box can be locked and fixed in a secondary manner, which improves the structural strength and stability of the film box during transportation or storage of film. It has a wide range of applications, is easy to operate, and improves the user experience. Attached Figure Description

[0025] Figure 1 This is a perspective structural diagram of a snap-fit ​​device according to an embodiment of the electronic snap-fit ​​device of this application.

[0026] Figure 2 yes Figure 1 Side view of the locking device.

[0027] Figure 3 This is a perspective structural diagram of a film box according to an embodiment of the film box of this application.

[0028] Figure 4 yes Figure 3 Enlarged view of the local structure at point A in the middle.

[0029] Among them, 10-clamping device, 11-mounting base, 111-mounting column, 12-clamping assembly, 121-first connecting rod, 1211-connecting arm, 1212-first pivot point, 1213-second pivot point, 1214-operating part, 122-second connecting rod, 1221-connecting rod, 1222-pivot shaft, 1223-shoulder sleeve, 123-clamping element, 1231-leaving space, 1232-clamping part 13-Matching part, 131-Base, 132-Pressure tongue, 133-Slot, 20-Base plate, 21-Base plate body, 22-Frame, 30-Support base plate, 31-Support body, 32-Support column, 33-Film groove, 40-Fixing component, 41-Fixing plate, 411-Limiting groove, 42-Limiting block, 43-Positioning hole, 44-Movable hole, 51-First auxiliary mounting block, 52-Second auxiliary mounting block. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0031] It should be noted that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only to simplify the description of this application and do not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this application.

[0032] In the various figures of this application, for ease of illustration, certain dimensions of structures or parts may be exaggerated relative to other structural parts; therefore, they are only used to illustrate the basic structure of the subject matter of this application.

[0033] This application provides a snap-fit ​​device 10 and a film box having the snap-fit ​​device. The film box is used to store or transport film. The snap-fit ​​device 10 performs secondary locking on two components of the film box, thereby improving the structural strength and stability of the film box and avoiding safety hazards during transportation.

[0034] like Figure 1 and Figure 2 As shown, the latching device 10 includes a mounting base 11, a pressing assembly 12, and a mating part 13. Generally, the mounting base 11 is mounted on one component, and the mating part 13 is fixedly mounted on another component. The two components are locked by the pressing engagement of the pressing assembly 12 and the mating part 13.

[0035] For ease of description, the arrangement direction of the mounting base 11 and the mating component 13 is defined as the vertical direction, the direction facing the operator is the front side, and the direction away from the operator is the rear side. Of course, the latching device 10 can also be arranged in other directions, but this direction will be used as a reference.

[0036] Specifically, the mounting base 11 is a plate-shaped block used to provide a mounting carrier for the clamping assembly 12. The mounting base 11 is provided with a pair of mounting posts 111 to facilitate the installation of the clamping assembly 12.

[0037] The clamping assembly 12 includes a first connecting rod 121 pivotally connected to the mounting base 11, a second connecting rod 122 pivotally connected to the first connecting rod 121, and a clamping member 123 fixedly installed at the end of the second connecting rod 122 away from the first connecting rod 121. The first connecting rod 121 includes a connecting arm 1211, a first pivot point 1212 pivotally connecting the connecting arm 1211 to the mounting base 11, and a second pivot point 1213 pivotally connecting the connecting arm 1211 to the second connecting rod 122. The first pivot point 1212 is located at one end of the connecting arm 1211. Operating the first connecting rod 121 moves the second connecting rod 122, thereby causing the clamping member 123 to move along the extension direction of the second connecting rod 122.

[0038] The clamping member 123 and the mating member 13 have a first state of mutual clamping and a second state of mutual separation. In the first state, the second pivot point 1213 is located on the upper rear side of the first pivot point 1212, that is, the connecting arm 1211, the first pivot point 1212 and the second pivot point 1213 are located on the same straight line, that is, the first pivot point 1212 and the second pivot point 1213 are in the dead point clamping position of the clamping assembly 12, thereby making the clamping assembly 12 in a self-locking state, thereby improving the structural strength and stability of the mutual cooperation between the clamping member 123 and the mating member 13.

[0039] The first link 121 includes a pair of connecting arms 1211. A first pivot point 1212 is located outside the pair of connecting arms 1211, and a second pivot point 1213 is located between the pair of connecting arms 1211. In the width direction of the connecting arms 1211, the second pivot point 1213 is located inside the first pivot point 1212. When operating the connecting arms 1211, the first link 121 will not interfere with the second link 122.

[0040] Specifically, the connecting arm 1211 is connected to the mounting post 111 via a pivot. Due to the setting of the mounting post 111, the first pivot point 1212 is farther away from the mounting base than the second pivot point 1213, so that the upper end of the connecting arm 1211 is inclined toward the mounting base 11, which is conducive to forming a clamping position between the connecting arm 1211 and the mounting base 11.

[0041] The first connecting rod 121 also includes an operating part 1214 connected to one end of the connecting arm 1211 away from the first pivot point 1212. The height of the operating part 1214 exceeds the upper end of the mounting base 11 and is bent away from the mounting base 11, so as to facilitate the operation of the connecting arm 1211 and thus facilitate the switching of the mating relationship between the clamping member 123 and the mating member 13.

[0042] The second connecting rod 122 includes a connecting rod 1221 located between the pair of connecting arms 1211, a pivot hole at one end of the connecting rod 1221, and a pivot shaft 1222 cooperating with the pivot hole. The pivot shaft 1222 is connected between the pair of connecting arms 1211. In this embodiment, the connecting rod 1221 is a long rod located between the pair of connecting arms 1211, and the clamping member 123 is installed at the other end of the connecting rod 1221 away from the pivot hole.

[0043] To increase the contact area between the pivot shaft 1222 and the connecting rod 1221, the second connecting rod 122 further includes a bushing 1223 disposed at the end of the connecting rod 1221. The pivot shaft 1222 passes through the bushing 1223 and connects to the connecting arm 1211, thereby improving the smoothness between the second connecting rod 122 and the first connecting rod 121.

[0044] Of course, the connecting rod 1221 can also be a pair, with the pair of connecting rods 1221 pivotally connected to the pair of connecting arms 1211 respectively. This can also achieve the purpose of the second connecting rod 122 cooperating with the first connecting rod 121 and the clamping member 123 respectively, which is also within the protection scope of this application.

[0045] The clamping member 123 is provided with a clearance space 1231 that cooperates with the mating member 13. Preferably, the clearance space 1231 extends through the clamping member 123 along its thickness direction. In this embodiment, the clamping member 123 is a triangular structure with a hollow center, wherein the bottom edge of the triangular structure is a clamping part 1232 that presses against the mating member 13.

[0046] The mating component 13 is located below the mounting base 11. The mating component 13 includes a base 131 and a pressure tongue 132 extending laterally from the upper part of the base 131. In the first state, the pressure tongue 132 is inserted into the clearance space 1231 and abuts against the pressing part 1232.

[0047] The tongue depressor 132 forms an acute angle with the base 131 to prevent the tongue depressor 132 from falling out of the clearance space 1231.

[0048] The pressure tongue 132 and the base 131 form a slot 133. In the first state, the pressing part 1232 is located in the slot 133.

[0049] The depth of the slot 133 is not greater than the distance between the first pivot point 1212 and the second pivot point 1213, so that when the first state and the second state are switched, the pressing part 1232 can easily disengage from the slot 133 or be pressed.

[0050] like Figure 3 The adhesive film box provided in this application includes a base plate 20, a pair of support base plates 30 that cooperate with the base plate 20, a fixing component 40 for holding the support base plates 30 in a supported state, and the aforementioned snap-fit ​​device 10 for preventing the fixing component 40 from loosening.

[0051] The base plate 20 includes a base plate body 21, two pairs of frame frames 22 installed on the side of the base plate body 21, and a pair of support substrates 30 disposed on both sides of the base plate 20. The support substrates 30 have at least a folded state folded above the base plate 20 and a supported state perpendicular to the base plate 20. In the supported state, the base plate 20 and the support substrates 30 form a storage space for storing adhesive film. In the folded state, the support substrates 30 are folded above the base plate body 21, which does not occupy space and saves space.

[0052] Specifically, the support base plate 30 includes a support body 31 and support columns 32 connected to both sides of the support body 31. The support columns 32 cooperate with the frame 22 to mount the support base plate 30 on the base plate 20.

[0053] The support body 31 is provided with a film groove 33 for supporting the film roll. When the film roll is placed on the film box, especially during the film transportation process, it prevents the film roll from rolling off the film box or even falling off.

[0054] like Figure 3 and Figure 4 As shown, the fixing component 40 includes a fixing plate 41 fixed to the base plate 20 and pivotally connected to the support column 32, and a limiting block 42 for limiting the position between the support column 32 and the fixing plate 41, so as to install the support base plate 30 on the base plate 20, while keeping the support base plate 30 in a supported state or a folded state.

[0055] The fixing plate 41 is U-shaped with a side opening. The support column 32 is located within the space of the fixing plate 41. The limiting block 42 is fixed on the support column 32. The fixing plate 41 is provided with a limiting groove 411 for limiting the limiting block 42. The limiting groove 422 opens upward. The limiting block 42 is located above the limiting groove 411. As the support column 32 moves up and down, the limiting block 42 falls into the limiting groove 411, thus fixing the support column 32 and the fixing plate 41. Since the pivoting direction between the support base plate 30 and the fixing plate 41 and the direction of the engagement between the limiting block 42 and the limiting groove 411 are different, the fixing and limiting between the support column 32 and the fixing plate 41 can be achieved.

[0056] like Figure 4As shown, the fixing component 40 further includes a positioning hole 43 on the support column 32, a movable hole 44 on the fixing plate 41 corresponding to the positioning hole 43, and a positioning bolt passing through the positioning hole 43 and the movable hole 44. The movable hole 44 is elongated, and its lower end is aligned with the positioning hole 43. The positioning bolt passes through the movable hole 44 and the positioning hole 43 in sequence. When the positioning bolt is located at the lower end of the movable hole 44, the limiting block 42 is exactly located within the limiting groove 411. At this time, the supporting base plate 30 is in a supported state relative to the base plate 20; the supporting base plate 30 is cut When switching to the folded state, the support column 32 moves upward, and the support column 32, carrying the positioning bolt, moves to the upper end of the movable hole 44. At this time, the upper end of the positioning hole 43 is aligned with the upper end of the movable hole 44, but the limiting groove 411 has released the restriction on the limiting block 42. At this time, the support column 32 and the fixing plate 41 are only connected by the positioning bolt. The support base plate 30 rotates under the drive of the support column 32 and switches to the folded state. That is, the support column 32, carrying the positioning bolt, moves along the length direction of the movable hole 44 to release the limitation of the fixing plate 41 on the support column 32, thereby switching the state of the support base plate 30.

[0057] To avoid the safety hazard of the limiting block 42 dislodging from the limiting groove 411 due to vibration during the transportation of the film box, the film box of this application also includes a buckle device. The detailed structure of the buckle device 10 is as described above and will not be repeated here. The mounting base 11 is fixedly connected to the side of the fixing plate 41, and the mating part 13 is fixedly connected to the frame 22 to lock the fixing plate 41 and the frame 22 a second time, preventing the support column 32 from vibrating up and down and causing the limiting block 42 to dislodge from the limiting groove 411.

[0058] The film box in this application also includes a first auxiliary mounting block 51 and a second auxiliary mounting block 52, which are used to assist and adjust the installation of the buckle device 10. The first auxiliary mounting block 51 is installed between the mounting base 11 and the fixing plate 41, and the second auxiliary mounting block 52 is installed between the mating part 13 and the frame 21.

[0059] In summary, the buckle device 10 of this application locks and fixes two relatively separate components, improving the structural strength and stability of the two components working together. In particular, it can lock and fix the two components of the film box a second time, improving the structural strength and stability of the film box during transportation or storage of film. It has a wide range of applications, is easy to operate, and improves the user experience.

[0060] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0061] The detailed descriptions listed above are merely specific illustrations of feasible embodiments of this application and are not intended to limit the scope of protection of this application. All equivalent embodiments or modifications made without departing from the spirit of the art of this application should be included within the scope of protection of this application.

Claims

1. A latching device, characterized in that, include: Mounting base; The clamping assembly includes a first link pivotally connected to a mounting base, a second link pivotally connected to the first link, and a clamping member fixedly installed at the end of the second link away from the first link. The first link includes a connecting arm, a first pivot point pivotally connecting the connecting arm to the mounting base, and a second pivot point pivotally connecting the connecting arm to the second link. The first pivot point is located at one end of the connecting arm. The mating component is located below the mounting base, and the clamping component and the mating component have a first state of mutual clamping and a second state of mutual separation; In the first state, the second pivot point is located above and behind the first pivot point.

2. The latching device as described in claim 1, characterized in that, The first link includes a pair of connecting arms, a first pivot point located outside the pair of connecting arms, and a second pivot point located between the pair of connecting arms.

3. The latching device as described in claim 2, characterized in that, The first link further includes an operating part connected to the end of the connecting arm away from the first pivot point. The height of the operating part exceeds the upper end of the mounting base and is bent away from the mounting base.

4. The latching device as described in claim 2, characterized in that, The second link includes a connecting rod located between the pair of connecting arms, a pivot hole at one end of the connecting rod, and a pivot shaft that mates with the pivot hole. The pivot shaft is connected between the pair of connecting arms, and the clamping member is installed at the other end of the connecting rod away from the pivot hole.

5. The latching device as described in any one of claims 1 to 4, characterized in that, The mating component includes a base and a pressure tongue extending laterally from the upper part of the base, and the clamping component has a clearance space for the insertion of the pressure tongue.

6. The snap-fit ​​device as described in claim 5, characterized in that, The pressure tongue forms an acute angle with the base, and the clearance space extends through the pressure member along its thickness direction.

7. The latching device as described in claim 6, characterized in that, The pressure tongue and the base form a slot, and the distance between the first pivot point and the second pivot point is not less than the depth of the slot.

8. A film box, characterized in that, include: Base plate; A pair of support substrates are disposed on both sides of the base plate. Each support substrate includes a support body and support columns connected to both sides of the support body. Each support substrate has at least a folded state folded above the base plate and a support state perpendicular to the base plate. A fixing assembly for mounting a support base plate on a base plate, the fixing assembly including a fixing plate fixed to the base plate and pivotally connected to the support column, and a limiting block for limiting the movement between the support column and the fixing plate; The snap-fit ​​device according to any one of claims 1 to 6 is used to prevent the fixing component from loosening.

9. The film box as described in claim 8, characterized in that, The limiting block is fixed on the support column. The fixing plate is provided with a limiting groove for limiting the upper and lower movement of the limiting block. The fixing assembly also includes a positioning hole on the support column, a movable hole on the fixing plate corresponding to the positioning hole, and a positioning bolt passing through the positioning hole and the movable hole. The movable hole is elongated. The support column carries the positioning bolt and moves along the length direction of the movable hole to release the limiting effect of the fixing plate on the support column, thereby switching the state of the support base plate.

10. The film box as described in any one of claims 8 to 9, characterized in that, The base plate includes two pairs of frames, the mounting base is fixedly connected to the side of the fixing plate, and the mating parts are fixedly connected to the frames.

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