A print head convenient to replace

Abstract

The utility model relates to a convenient replacement's printer ink -jet, this convenient replacement's printer ink -jet, including mounting seat and install on the mounting seat on the ink -jet main part, the mounting seat is opened with the first jack of the ink -jet main part bottom end size adaptation, the mounting seat on both ends of first jack all are opened and have the round hole, the elastic spring piece is installed to the top end of stand, and the both ends of elastic spring piece all are outwardly bent and form the limiting portion, when installing the ink -jet main part, can extrude the elastic spring piece two vertical section contraction first, then the limiting hole that opens in the boss is aimed at the elastic spring piece and presses down the ink -jet main part bottom end to the first jack, because the ink -jet main part is inserted and the limiting portion is located just above the limiting hole after, the elastic spring piece is released after the bending part and pops up and connects the boss on the mounting seat, need not use the fastening knob and fix, make the user when dismouting the ink -jet main part more convenient, convenient user replacement ink -jet main part.

Description

Technical Field

[0001] This utility model belongs to the field of printer printhead installation technology, specifically relating to a printer printhead that is easy to replace. Background Technology

[0002] A UV printer is a high-tech, plate-free, full-color digital printer that is not limited by materials. It can perform photo-quality color printing on surfaces such as glass, sheets, various signs, crystal, PVC, acrylic, metal, plastic, stone, and leather. Printing is completed in a single pass without the need for plate making, offering advantages such as vibrant and rich colors, wear resistance, UV protection, simple and convenient operation, and fast printing speed.

[0003] The utility model patent with announcement number CN220031521U proposes a printhead assembly for a UV printer. This printhead assembly, through the matching structure of the inkjet base plate with the slot and heating groove, can easily insert and install the printhead assembly onto the printhead mounting plate body. Through the matching structure of the guide post with the through hole and guide groove, it can easily position and align the hole during insertion and installation, which is convenient for quick installation. Then, through the threaded connection structure of the fastening knob matching the guide post, it can easily fasten the printhead assembly onto the printhead mounting plate body.

[0004] Although the above-mentioned nozzle assembly can be quickly aligned during plug-in installation through the cooperation of guide posts and through holes, it still needs to be manually tightened with a fastening knob after plugging in. The tightening process takes a long time and is not convenient for quick disassembly and assembly of the nozzle assembly. Utility Model Content

[0005] The purpose of this utility model is to provide a printer printhead with a simple structure and reasonable design that is easy to replace in order to solve the above problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A printer printhead that is easy to replace includes a mounting base and a printhead body mounted on the mounting base. The mounting base has a first insertion hole that matches the size of the bottom end of the printhead body. The mounting base has round holes at both ends of the first insertion hole. A retaining plate is snapped into the bottom of the mounting base. A column aligned with the round hole is fixedly connected to the upper surface of the retaining plate. A trapezoidal plate is integrally formed at the top of the column. A U-shaped elastic spring is fixedly connected to the top of the trapezoidal plate. Both ends of the elastic spring are bent outward to form limiting portions.

[0008] Both sides of the bottom end of the nozzle body are integrally formed with bosses, and the bosses are provided with limiting holes that are aligned with the column.

[0009] As a further optimization of this utility model, a support frame is fixedly connected to one side of the mounting base, and right-angle blocks are provided between the two ends of the mounting base and the support frame. The two right-angled sides of the right-angle blocks are welded and fixed to the upper surface of the mounting base and the side wall of the support frame, respectively.

[0010] As a further optimization of this utility model, a connecting plate is fixedly connected to the side of the support frame away from the mounting base. The connecting plate has a rectangular plate structure and multiple matrix-distributed fixing holes are provided on the connecting plate.

[0011] As a further optimization of this utility model, the bottom wall of the mounting base is provided with a slot, the size of the slot cavity is adapted to the size of the card plate, and the card plate is fixed to the bottom of the mounting base through the slot.

[0012] As a further optimization of this utility model, a second insertion hole is provided on the card plate, the second insertion hole is aligned with the first insertion hole on the mounting base, and after the card plate is engaged, the height of its bottom wall is flush with the height of the bottom end of the nozzle body after installation.

[0013] As a further optimization of this utility model, the column has a cylindrical structure, and the height of the column is equal to the distance between the lower surface of the clamping plate and the upper surface of the protrusion after the nozzle body is clamped onto the mounting base.

[0014] As a further optimization of this utility model, a gap is provided between the vertical end of the elastic spring and the trapezoidal plate for the elastic spring to contract, and when the end of the elastic spring is in contact with the trapezoidal plate, the maximum distance between the limiting parts formed by the bending of the two ends of the elastic spring is less than the diameter of the column.

[0015] As a further optimization of this utility model, the top of the printhead body is integrally formed with a connector that communicates with the interior of the printhead body, and the printer ink cartridge is connected and fixed to the printhead body through the connector.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. An elastic spring is installed at the top of the column via a trapezoidal plate. Both ends of the elastic spring are bent outward to form a limiting part. When installing the nozzle body, the two vertical sections of the elastic spring can be squeezed to retract. Then, the limiting hole on the boss is aligned with the elastic spring, and the bottom of the nozzle body is pressed down into the first insertion hole. Since the limiting part is located above the limiting hole after the nozzle body is inserted, the bending part springs up after the elastic spring is released, and the boss is snapped into the mounting base. There is no need to use a fastening knob for fixation, which makes it more convenient for users to disassemble and assemble the nozzle body and facilitates the replacement of the nozzle body.

[0018] 2. The card plate is snapped into the bottom of the mounting base via a card slot. When the column, trapezoidal plate or elastic spring plate installed on the card plate is damaged due to long-term use, the user can remove the card plate and replace only the card plate, without having to replace the entire mounting base, which greatly reduces maintenance costs. Attached Figure Description

[0019] Figure 1 This is an exploded view of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the back of the overall structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the connection structure between the support frame and the mounting base of this utility model;

[0022] Figure 4 This is a schematic diagram of the installation structure of the column and the card plate of this utility model;

[0023] Figure 5 This is a schematic diagram of the connection structure of the column, trapezoidal plate, and elastic spring of this utility model.

[0024] In the diagram: 1. Support frame; 2. Connecting plate; 3. Fixing hole; 4. Mounting base; 5. Right-angle block; 6. First insertion hole; 7. Round hole; 8. Clamping plate; 9. Second insertion hole; 10. Column; 11. Trapezoidal plate; 12. Elastic spring; 13. Limiting part; 14. Nozzle body; 15. Connector; 16. Boss; 17. Limiting hole. Detailed Implementation

[0025] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0026] Example

[0027] like Figure 1 - Figure 5 As shown, the device includes a mounting base 4 and a nozzle body 14 mounted on the mounting base 4. A support frame 1 is fixedly connected to one side of the mounting base 4. Right-angle blocks 5 are provided between the two ends of the mounting base 4 and the support frame 1. The two right-angled sides of the right-angle blocks 5 are welded and fixed to the upper surface of the mounting base 4 and the side wall of the support frame 1, respectively. The support frame 1 is provided to support the mounting base 4. Right-angle blocks 5 are provided at the connection between the mounting base 4 and the support frame 1 to improve the stability of the installation of the mounting base 4 and the support frame 1.

[0028] A connecting plate 2 is fixedly connected to the side of the support frame 1 away from the mounting base 4. The connecting plate 2 has a rectangular plate structure and multiple matrix-distributed fixing holes 3 are provided on the connecting plate 2. In use, external bolts can be threaded through the fixing holes 3 on the connecting plate 2 and screwed to the internal connector of the printer.

[0029] The mounting base 4 has a first insertion hole 6 that matches the size of the bottom end of the nozzle body 14. The bottom end of the nozzle body 14 can be inserted and fixed to the mounting base 4 through the first insertion hole 6. The mounting base 4 has round holes 7 at both ends of the first insertion hole 6. The bottom wall of the mounting base 4 has a slot. The bottom of the mounting base 4 is provided with a card plate 8. The size of the inner cavity of the slot matches the size of the card plate 8. The card plate 8 is fixed to the bottom of the mounting base 4 through the slot. The card plate 8 is connected by a card, which makes it easy to disassemble and replace the card plate 8 if it is damaged.

[0030] A column 10, aligned with the circular hole 7, is fixedly connected to the upper surface of the card plate 8. The column 10 has a cylindrical structure, and a trapezoidal plate 11 is integrally formed at the top of the column 10. A U-shaped elastic spring 12 is fixedly connected to the top of the trapezoidal plate 11. Both ends of the elastic spring 12 are bent outward to form limiting parts 13. Both sides of the bottom end of the nozzle body 14 have integrally formed bosses 16. Limiting holes 17 aligned with the column 10 are opened on the bosses 16. When in use, the card plate 8 is first snapped into the bottom of the mounting base 4 through the card slot. At this time, the column 10, trapezoidal plate 11 and elastic spring 12 installed on the card plate 8 will pass through the circular hole 7 and extend to the top of the mounting base 4. Then, the bottom end of the nozzle body 14 is aligned with the first insertion hole 6 opened on the mounting base 4, and the nozzle body 14 is pressed down. 4. The trapezoidal plate 11 and elastic spring 12 connected to the top of the column 10 pass through the limiting holes 17 opened on the protrusions 16 on both sides of the nozzle body 14 until the bottom of the protrusions 16 is in contact with the upper surface of the mounting base 4. Since the height of the column 10 is equal to the distance between the lower surface of the clamping plate 8 and the upper surface of the protrusion 16 after the nozzle body 14 is clamped on the mounting base 4, the bottom end of the elastic spring 12 is located above the limiting hole 17. The elastic spring 12 loses the limiting effect of the inner wall of the limiting hole 17 and returns to its original position. The protrusion 16 is clamped on the mounting base 4 by the limiting part 13 formed by the bending of the end of the elastic spring 12. The nozzle body 14 can be fixed without the need to use a fastening knob for fixing, which makes it more convenient for users to disassemble and assemble the nozzle body 14 and facilitates the replacement of the nozzle body 14.

[0031] The card plate 8 has a second insertion hole 9, which is aligned with the first insertion hole 6 on the mounting base 4. After the card plate 8 is engaged, the height of its bottom wall is flush with the height of the bottom of the printhead body 14 after installation. When the printhead body 14 is engaged, the bottom of the printhead body 14 is flush with the lower surface of the card plate 8, which can minimize the problem of the printhead body 14 being blocked by the side wall of the second insertion hole 9 during ink spraying, thus affecting the printing effect.

[0032] A gap is provided between the vertical end of the elastic spring 12 and the trapezoidal plate 11 for the elastic spring 12 to contract. When the end of the elastic spring 12 is in contact with the trapezoidal plate 11, the maximum distance between the limiting parts 13 formed by the bending of the two ends of the elastic spring 12 is less than the diameter of the column 10. When it is necessary to disassemble the nozzle body 14, the user can press the two vertical sections of the elastic spring 12 so that the end of the elastic spring 12 is in contact with the trapezoidal plate 11. At this time, the distance between the two limiting parts 13 at the opposite ends is less than the diameter of the limiting hole 17. The user only needs to pull the nozzle body 14 upward to remove the nozzle body 14 from the mounting base 4.

[0033] The top of the printhead body 14 has an integrally formed connector 15 that communicates with the inside of the printhead body 14. The printer ink cartridge is connected and fixed to the printhead body 14 through the connector 15, and is used to supply ink to the printhead body 14 through the printer ink cartridge.

[0034] It should be noted that this type of easily replaceable printer printhead, when in use, involves passing the top of the trapezoidal plate 11 through the round hole 7 and then snapping the clip 8 into the bottom of the mounting base 4. Next, the bottom of the printhead body 14 is aligned with the first insertion hole 6 on the mounting base 4, and the printhead body 14 is pressed down. This causes the trapezoidal plate 11 and the elastic spring 12 connected to the top of the column 10 to pass through the limiting holes 17 on the protrusions 16 on both sides of the printhead body 14 until the bottom of the protrusions 16 is flush with the upper surface of the mounting base 4. Since the height of the column 10 is equal to that of the printhead body 14, the printhead body 14 is positioned correctly. After the clip 4 is attached to the mounting base 4, the gap between the lower surface of the clip 8 and the upper surface of the boss 16 is such that the bottom end of the elastic spring 12 is above the limiting hole 17. The elastic spring 12 loses the limiting effect of the inner wall of the limiting hole 17 and bounces back. The boss 16 is clipped onto the mounting base 4 by the limiting part 13 formed by the bending of the end of the elastic spring 12. This can realize the fixing of the nozzle body 14 without the need to use a fastening knob for fixing, making it more convenient for users to disassemble and assemble the nozzle body 14 and to replace the nozzle body 14.

[0035] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A replaceable printhead for a printer, comprising a mounting base (4) and a printhead body (14) mounted on the mounting base (4), characterized in that: The mounting base (4) has a first insertion hole (6) that matches the size of the bottom end of the nozzle body (14). The mounting base (4) at both ends of the first insertion hole (6) has a round hole (7). The bottom of the mounting base (4) is fitted with a clamping plate (8). The upper surface of the clamping plate (8) is fixedly connected to a column (10) that is aligned with the round hole (7). The top of the column (10) is integrally formed with a trapezoidal plate (11). The top of the trapezoidal plate (11) is fixedly connected to an elastic spring (12) with a U-shaped structure. Both ends of the elastic spring (12) are bent outward to form a limiting part (13). Both sides of the bottom end of the nozzle body (14) are integrally formed with bosses (16), and the bosses (16) are provided with limiting holes (17) that are aligned with the column (10).

2. The printer printhead that is easy to replace according to claim 1, characterized in that: The mounting base (4) is fixedly connected to a support frame (1) on one side. Right-angle blocks (5) are provided between the two ends of the mounting base (4) and the support frame (1). The two right-angled sides of the right-angle blocks (5) are welded and fixed to the upper surface of the mounting base (4) and the side wall of the support frame (1), respectively.

3. The printer printhead that is easy to replace according to claim 2, characterized in that: The support frame (1) is fixedly connected to a connecting plate (2) on the side away from the mounting base (4). The connecting plate (2) has a rectangular plate structure and multiple matrix-distributed fixing holes (3) are provided on the connecting plate (2).

4. The printer printhead that is easy to replace according to claim 1, characterized in that: The mounting base (4) has a slot on its bottom wall. The size of the slot cavity is adapted to the size of the card plate (8). The card plate (8) is fixed to the bottom of the mounting base (4) through the slot.

5. A printer printhead that is easy to replace according to claim 4, characterized in that: The card plate (8) is provided with a second insertion hole (9), which is aligned with the first insertion hole (6) on the mounting base (4). After the card plate (8) is engaged, the height of its bottom wall is flush with the height of the bottom end of the nozzle body (14) after installation.

6. The printer printhead that is easy to replace according to claim 1, characterized in that: The column (10) has a cylindrical structure. The height of the column (10) is equal to the distance between the lower surface of the clamping plate (8) and the upper surface of the boss (16) after the nozzle body (14) is clamped onto the mounting base (4).

7. A printer printhead that is easy to replace according to claim 1, characterized in that: A gap is provided between the vertical end of the elastic spring (12) and the trapezoidal plate (11) for the elastic spring (12) to contract. When the end of the elastic spring (12) is in contact with the trapezoidal plate (11), the maximum distance between the limiting parts (13) formed by bending the two ends of the elastic spring (12) is less than the diameter of the column (10).

8. A printer printhead that is easy to replace according to claim 1, characterized in that: The top of the printhead body (14) is integrally formed with a connector (15) that communicates with the inside of the printhead body (14), and the printer ink cartridge is connected and fixed to the printhead body (14) through the connector (15).

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