Packaging box of printing head

Abstract

The utility model provides a packaging box of a printing head, which comprises an upper shell and a lower shell which are mutually covered, an accommodating space used for installing the printing head is formed in the upper shell and the lower shell, two opposite sides of the lower edge of the upper shell are provided with buckle assemblies, each buckle assembly comprises a pressing plate, the lower side edge of each pressing plate extends downwards to form two buckles, and the two buckles are arranged in the accommodating space. The pressing plate is fixedly connected to the edge of the upper shell through a connecting part, when the pressing plate is pressed inwards, the buckle can be bounced off outwards, the inner side of the lower end of the buckle is provided with an upper sliding contact face, the two opposite sides of the upper edge of the lower shell are provided with clamping blocks corresponding to the buckle assembly, and the upper sliding contact face is provided with an upper sliding contact face. The outer side face of the clamping block is a lower sliding contact face matched with the upper sliding contact face, when the upper shell and the lower shell are closed in a covering mode, the upper sliding contact face of the buckle and the lower sliding contact face of the clamping block extrude each other, and the buckle is bounced off under extrusion till the buckle is clamped on the clamping block.

Description

Technical Field

[0001] This utility model relates to the field of packaging technology, and more specifically, to a packaging box for a printhead. Background Technology

[0002] The description in this section provides only background information related to the disclosure of this utility model and does not constitute prior art.

[0003] Inkjet printheads require a special moisturizing fluid to keep the nozzles moist, preventing ink from drying out and clogging, thus ensuring print quality and printhead lifespan. However, during air transport, the significant pressure difference between high altitudes and the ground creates a large pressure difference between the printhead's interior and the external environment. This pressure difference can cause the moisturizing fluid to leak from the nozzles or seals, resulting in fluid loss, potential packaging contamination, and even printhead damage. Therefore, a specially designed packaging box is needed to solve this problem.

[0004] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this utility model and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this utility model. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a packaging box for a printhead.

[0006] To solve the above-mentioned technical problems, this utility model provides a packaging box for a printhead, including an upper shell and a lower shell that overlap each other, forming a receiving space for installing the printhead. The lower edge of the upper shell has a latching assembly on opposite sides, each latching assembly including a pressure plate. The lower edge of the pressure plate extends downward to form two latches. The pressure plate is fixedly connected to the edge of the upper shell via a connecting part. When the pressure plate is pressed inward, the latches can spring outward. The lower end of each latch has an upper sliding contact surface on its inner side. The upper edge of the lower shell has corresponding latching blocks on opposite sides, each latching block having a lower sliding contact surface that mates with the upper sliding contact surface. When the upper and lower shells are closed, the upper sliding contact surfaces of the latches and the lower sliding contact surfaces of the latching blocks press against each other, causing the latches to spring open under pressure until they engage with the latching blocks, thus locking the upper and lower shells.

[0007] Preferably, the upper sliding contact surface is an inclined surface, and the angle between the upper sliding contact surface and the vertical surface is between 30° and 45°. The lower sliding contact surface is also an inclined surface, and the inclination angle is the same as that of the upper sliding contact surface.

[0008] Preferably, the connecting part is a thin-walled structure with elasticity.

[0009] Preferably, a nozzle protection component is also installed inside the lower housing. The nozzle protection component includes a nozzle protective shell and an ink-absorbing pad installed inside the nozzle protective shell. The surface of the ink-absorbing pad is facing upward. A spring is also connected between the nozzle protection component and the bottom surface of the lower housing. The upper end of the spring abuts against the lower surface of the nozzle protective shell, and the lower end of the spring abuts against the bottom surface of the lower housing. When the upper and lower housings are closed together, the spring is compressed between the bottom surface of the lower housing and the bottom of the nozzle protective shell, and the nozzle of the printhead abuts against the ink-absorbing pad.

[0010] Preferably, the lower end of the print head is sealed to the nozzle protective housing.

[0011] Preferably, the lower end of the printhead is sealed to the nozzle protective housing by a sealing ring. When the upper and lower housings are closed, the sealing ring is pressed between the lower end of the printhead and the nozzle protective housing under the elastic force of the spring.

[0012] Preferably, a sponge compartment is also installed inside the lower shell, and the sponge compartment has a sponge cavity containing a sponge. The outer surface of the sponge cavity includes an elastic membrane, and the sponge compartment is connected to the interior of the nozzle protective shell.

[0013] Preferably, the elastic membrane is made of PVC material, and the sponge compartment is connected to the spray nozzle protective shell via a hose.

[0014] Preferably, the lower end of the sponge compartment is provided with a plurality of elastic prongs, and the bottom of the lower shell is provided with a plurality of mounting holes for inserting the elastic prongs. The elastic prongs are inserted into the mounting holes to fix the sponge compartment.

[0015] Preferably, the lower end of the elastic plug is a triangular head, and the lower end of the sponge compartment is also provided with multiple limiting feet. When the triangular head is fully inserted into the mounting hole, the lower end of the limiting feet abuts against the upper surface of the bottom surface of the lower shell, and the upper surface of the triangular head abuts against the lower surface of the bottom surface of the lower shell.

[0016] Based on the above technical solution, the beneficial effects of this utility model are as follows:

[0017] This utility model discloses a printhead packaging box. The printhead can be inserted into the box. Through the interaction of the upper shell latch assembly and the lower shell latch, when the upper and lower shells are closed, the upper sliding contact surface of the latch and the lower sliding contact surface of the latch press against each other, causing the latch to spring open and ultimately lock onto the latch, thus locking the upper and lower shells. This locking method ensures that the upper and lower shells will not easily separate during transportation and storage, effectively protecting the printhead inside the box. The pressure plate makes the latch operation more convenient. When it is necessary to open the packaging box, pressing the pressure plate inward causes the latch to spring outward, allowing easy separation of the upper and lower shells. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the packaging box of this application.

[0019] Figure 2 This is a schematic diagram of the upper shell structure of this application.

[0020] Figure 3 This is a schematic diagram of the lower shell structure of this application.

[0021] Figure 4 This is a schematic diagram of the lower shell structure of this application.

[0022] Figure 5 This is a schematic diagram of the lower shell structure of this application.

[0023] Figure 6 This is a top view of the lower shell structure of this application.

[0024] Figure 7 This is a structural schematic diagram of the lower shell and its internal components of this application.

[0025] Figure 8 This is a structural schematic diagram of the nozzle protection component of this application.

[0026] Figure 9 This is a structural schematic diagram of the nozzle protection component of this application.

[0027] Figure 10 This is a structural schematic diagram of the nozzle protection component and spring of this application.

[0028] Figure 11 This is a structural schematic diagram of the nozzle protection component and spring of this application.

[0029] Figure 12 This is a structural diagram of the sponge chamber in this application.

[0030] Figure 13 This is a structural schematic diagram of the nozzle protection component and sponge compartment of this application.

[0031] The components are as follows: 1. Upper shell; 2. Lower shell; 11. Pressure plate; 12. Buckle; 121. Upper sliding contact surface; 122. Connecting part; 21. Locking block; 22. Mounting boss; 211. Lower sliding contact surface; 23. Lower spring mounting part; 24. First mounting wall; 25. Second mounting wall; 26. Mounting hole; 3. Nozzle protection component; 31. Nozzle protection shell; 32. Ink absorption pad; 33. First mounting part; 34. Second mounting part; 35. Upper spring mounting part; 36. Ink nozzle; 4. Sponge tank; 41. Flexible pin; 42. Ink inlet hole; 43. Sponge cavity; 44. Limiting foot; 45. Ink nozzle; 5. Spring; 6. Hose. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] It should be noted that in the description of this invention, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0034] like Figure 1 As shown, this is a packaging box for installing a printhead according to this application, including an upper shell 1 and a lower shell 2 that overlap each other, forming a receiving space inside the upper shell 1 and the lower shell 2, and the printhead is installed in the receiving space.

[0035] like Figure 2 As shown, the upper shell 1 of this application has snap-fit ​​assemblies on opposite sides of its lower edge. Each snap-fit ​​assembly includes a pressure plate 11, the lower edge of which extends downward to form two snaps 12. The pressure plate 11 is fixedly connected to the edge of the upper shell 1 via a connecting part 122. The connecting part 122 is a thin-walled structure, allowing the snaps 12 to spring outward when the pressure plate 11 is pressed inward. The inner side of the lower end of each snap 12 has an upper sliding contact surface 121, which is an inclined surface. In a preferred embodiment, the upper sliding contact surface 121 is an inclined surface with an angle between 30° and 45° to the vertical plane.

[0036] like Figure 3As shown, the lower shell 2 of this application has locking blocks 21 on opposite sides of its upper edge, corresponding to the latching assembly 12. The outer surface of the locking block 21 is a lower sliding contact surface 211 that mates with the upper sliding contact surface 121. The lower sliding contact surface 211 is also a slope, and its inclination angle is the same as that of the upper sliding contact surface 121.

[0037] When the upper shell 1 and lower shell 2 are closed, the upper sliding contact surface 121 of the latch 12 and the lower sliding contact surface 211 of the latch block 21 press against each other. The latch 12 springs open under the pressure until it locks onto the latch block 21, thus locking the upper shell 1 and lower shell 2. When it is necessary to separate the upper shell 1 and lower shell 2, press the pressure plate 11 inward. The latch 12 located at the lower end of the pressure plate 11 will spring outward and disengage from the latch block 21, thereby separating the upper shell 1 and lower shell 2.

[0038] like Figure 7 As shown, a nozzle protection component 3 is also installed inside the lower shell 2, such as... Figure 8 As shown, the nozzle protection component 3 includes a nozzle protection housing 31 and an ink-absorbing pad 32 installed inside the nozzle protection housing 31, with the surface of the ink-absorbing pad 32 facing upwards.

[0039] A spring 5 is also connected between the nozzle protection component 3 and the bottom surface of the lower shell 2. The upper end of the spring 5 abuts against the lower surface of the nozzle protection shell 31, and the lower end of the spring 5 abuts against the bottom surface of the lower shell 2.

[0040] The nozzle protective housing 31 is further provided with a first mounting portion 33 and a second mounting portion 34 on both sides. Figure 4-6 As shown, the bottom of the lower shell 2 is further provided with a first mounting wall 24 and a second mounting wall 25, which are vertically arranged. The first mounting part 33 is mounted on the first mounting wall 24 and can move up and down along the first mounting wall 24. The second mounting part 34 is mounted on the second mounting wall 25 and can move up and down along the second mounting wall 25.

[0041] The bottom of the lower shell 2 is also provided with a circular lower spring mounting part 23, and the bottom of the nozzle protective shell 31 is provided with a circular upper spring mounting part 35. The upper end of the spring is installed in the upper spring mounting part 35, and the lower end of the spring is installed in the lower spring mounting part 23.

[0042] When the nozzle protection component 3 moves downward against the spring force under the action of external force, or moves upward under the action of spring force, the first mounting part 33 can move up and down along the first mounting wall 24, and the second mounting part 34 can move up and down along the second mounting wall 25.

[0043] When the printhead is installed in the packaging box, the nozzle is pressed against the ink absorption pad 32. The ink absorption pad 32 can absorb any residual ink in the printhead and prevent the ink from drying out and clogging the nozzle.

[0044] like Figure 7 As shown, a sponge compartment 4 is also installed inside the lower shell 2. Figure 12 As shown, the sponge compartment 4 is provided with a sponge cavity 43, and a sponge can be installed in the sponge cavity 43.

[0045] The outer surface of the sponge cavity 43 includes an elastic membrane, which may be made of PVC material.

[0046] The sponge chamber 4 is connected to the spray nozzle protective shell 31 via a hose 6.

[0047] The lower end of the printhead is sealed to the nozzle protective housing 31. When the internal and external pressure difference increases, the moisturizing fluid inside the printhead flows into the nozzle protective housing 31. Once the moisturizing fluid inside the nozzle protective housing 31 is saturated, it enters the sponge chamber 4 through the hose 6. Because the elastic membrane of the sponge chamber 4 is elastic, it can adjust the volume of the sponge cavity 43, thereby achieving a balance between internal and external pressure.

[0048] Specifically, the lower end of the printhead is sealed to the nozzle protection housing 31 by a sealing ring. When the upper housing 1 and lower housing 2 are closed, the upper housing 1 applies downward pressure, overcoming the spring force, causing the nozzle protection housing 31 to move downward. The nozzle portion of the printhead presses against the ink absorption pad 32, while the sealing ring is pressed tightly between the nozzle protection housing 31 and the printhead, forming a reliable seal. The spring force ensures that the sealing ring is always subjected to uniform pressure, preventing ink leakage or the entry of external contaminants.

[0049] like Figure 12 As shown, the lower end of the sponge compartment 4 is also provided with multiple flexible prongs 41. Correspondingly, the bottom of the lower shell 2 has multiple mounting holes 26 for inserting the flexible prongs 41. The lower end of the flexible prong 41 is a triangular head. The triangular shape helps to guide when inserting into the mounting hole 26, making it easier for the prong to be aligned and enter the hole. When the triangular head of the flexible prong 41 is fully inserted into the mounting hole 26, the flexible prong 41 will return to its original shape, and the triangular head will be locked on the lower side of the mounting hole 26, forming a firm connection.

[0050] The lower end of the sponge compartment 4 is also provided with multiple limiting feet 44. When the triangular head is fully inserted into the mounting hole 26, the lower end of the limiting feet 44 abuts against the upper surface of the bottom surface of the lower shell 2. The limiting feet 44 cooperate with the elastic insert 41 to limit the insertion depth of the sponge compartment 4 and determine the installation position of the sponge compartment 4. In a preferred embodiment, the limiting feet 44 have an L-shaped structure, and the lower end of the limiting feet 44 is bent to form a horizontal extension, which is used to abut against the upper surface of the bottom surface of the lower shell 2. The elastic insert 41, the limiting feet 44 and the sponge compartment 4 can be connected by integral molding, that is, the elastic insert 41, the limiting feet 44 and the sponge compartment 4 are directly made into a whole during the manufacturing process through injection molding, compression molding and other processes.

[0051] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A packaging box for a printhead, characterized in that, It includes an upper and lower shell that overlap each other, and the upper and lower shells form a receiving space for installing the printhead. The upper shell has snap-fit ​​assemblies on opposite sides of its lower edge. Each snap-fit ​​assembly includes a pressure plate, the lower edge of which extends downward to form two snaps. The pressure plate is fixedly connected to the upper shell edge via a connecting part. When the pressure plate is pressed inward, the snaps can spring outward. The lower end of each snap has an upper sliding contact surface on its inner side. The lower shell has locking blocks on opposite sides of its upper edge that correspond to the latching assembly. The outer side of each locking block is a lower sliding contact surface that mates with the upper sliding contact surface. When the upper and lower shells are closed, the upper sliding contact surface of the buckle and the lower sliding contact surface of the locking block press against each other. The buckle springs open under the pressure until it locks onto the locking block, thus locking the upper and lower shells.

2. The packaging box according to claim 1, characterized in that, The upper sliding contact surface is an inclined plane, and the angle between the upper sliding contact surface and the vertical plane is between 30° and 45°. The lower sliding contact surface is also an inclined plane, and the inclination angle is the same as that of the upper sliding contact surface.

3. The packaging box according to claim 2, characterized in that, The connecting part is a thin-walled structure with elasticity.

4. The packaging box according to claim 1, characterized in that, The lower housing also houses a nozzle protection device, which includes a nozzle protection shell and an ink-absorbing pad installed inside the nozzle protection shell. The ink-absorbing pad is positioned with its surface facing upwards. A spring is also connected between the nozzle protection device and the bottom surface of the lower housing. The upper end of the spring abuts against the lower surface of the nozzle protection shell, and the lower end of the spring abuts against the bottom surface of the lower housing. When the upper and lower housings are closed together, the spring is compressed between the bottom surface of the lower housing and the bottom of the nozzle protection shell, and the nozzle of the printhead abuts against the ink-absorbing pad.

5. The packaging box according to claim 4, characterized in that, The lower end of the print head is sealed to the nozzle protective housing.

6. The packaging box according to claim 5, characterized in that, The lower end of the printhead is sealed to the nozzle protective shell by a sealing ring. When the upper and lower shells are closed, the sealing ring is pressed between the lower end of the printhead and the nozzle protective shell under the elastic force of the spring.

7. The packaging box according to claim 6, characterized in that, The lower shell also contains a sponge compartment, which contains a sponge cavity. The outer surface of the sponge cavity includes an elastic membrane. The sponge compartment is connected to the interior of the nozzle protective shell.

8. The packaging box according to claim 7, characterized in that, The elastic membrane is made of PVC material, and the sponge compartment is connected to the spray nozzle protective shell via a hose.

9. The packaging box according to claim 8, characterized in that, The lower end of the sponge compartment is also provided with multiple elastic prongs, and the bottom of the lower shell is provided with multiple mounting holes for the elastic prongs to be inserted into. The elastic prongs are inserted into the mounting holes to fix the sponge compartment.

10. The packaging box according to claim 9, characterized in that, The lower end of the elastic plug is a triangular head, and the lower end of the sponge compartment is also provided with multiple limiting feet. When the triangular head is fully inserted into the mounting hole, the lower end of the limiting feet abuts against the upper surface of the bottom surface of the lower shell, and the upper surface of the triangular head abuts against the lower surface of the bottom surface of the lower shell.

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