Piezoelectric nozzle protective cover

Abstract

The utility model discloses a piezoelectric type nozzle protection cover which comprises an outer frame and an inner plate, the outer frame is provided with an installation hole, the inner plate is arranged in the installation hole, the upper side and the lower side of the front face of the installation hole are provided with blocking parts, the back faces of the two blocking parts abut against the upper side and the lower side of the front face of the inner plate respectively, and the left side and the right side of the front face of the installation hole are provided with clamping grooves. The left side and the right side of the blocking part are arranged in the two clamping grooves respectively, the outer frame and the inner plate can be disassembled and assembled conveniently, accordingly, a single part can be replaced when the outer frame or the inner plate is damaged, compared with a traditional protective cover of an integrally-formed structure, the whole protective cover does not need to be replaced when the protective cover is damaged, and therefore a large number of materials can be saved, and cost is reduced. The cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of piezoelectric nozzles, in particular to a piezoelectric nozzle protection cover. Background Art

[0002] A piezoelectric nozzle is a device that uses the piezoelectric effect to control the nozzle. Its principle is to apply an external electric field to the piezoelectric material to cause it to deform, generate pressure and push the medium out. The front end of the piezoelectric nozzle on the existing inkjet printer is generally equipped with a protective cover for protecting the nozzle, but the existing piezoelectric nozzle protective cover is generally an integrated structure. When the protective cover is partially damaged, the entire protective cover needs to be replaced, which wastes a lot of materials and increases costs. Utility Model Content

[0003] The purpose of the utility model is to overcome the above technical deficiencies, provide a piezoelectric nozzle protection cover, and solve the technical problems in the background technology.

[0004] In order to achieve the above-mentioned technical purpose, the technical solution of the utility model provides a piezoelectric nozzle protective cover, including an outer frame and an inner plate, a mounting hole is provided in the middle of the outer frame, the inner plate is arranged inside the mounting hole, blocking parts are provided on the upper and lower sides of the front side of the mounting hole, the backs of the two blocking parts are respectively abutted against the upper and lower sides of the front side of the inner plate, and card slots are provided on the left and right sides of the front side of the mounting hole, and the left and right sides of the blocking parts are respectively arranged inside the two card slots.

[0005] Furthermore, the blocking portion is integrally formed with the outer frame.

[0006] Furthermore, the blocking portion is in an elongated strip shape and is arranged along the length direction of the mounting hole.

[0007] Further, the length of the blocking portion is smaller than the length of the mounting hole.

[0008] Furthermore, the slot is in the shape of an elongated strip and is arranged along the width direction of the mounting hole.

[0009] Furthermore, the thickness of the blocking portion is smaller than the depth of the card slot.

[0010] Furthermore, blocking grooves matching with the blocking parts are provided on the upper and lower sides of the front side of the inner plate along its length direction.

[0011] Furthermore, a strip-shaped through hole is provided in the middle of the inner plate along its length direction.

[0012] The beneficial effects of the utility model include: the utility model provides a piezoelectric nozzle protective cover, which can be easily disassembled between the outer frame and the inner plate, so that a single component can be replaced when the outer frame or the inner plate is damaged. Compared with the traditional one-piece molded structure protective cover, there is no need to replace the entire protective cover when the protective cover is damaged, thereby saving a lot of materials and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of a piezoelectric nozzle protection cover according to an embodiment of the utility model;

[0014] Figure 2 This is another state diagram of a piezoelectric nozzle protection cover according to an embodiment of the utility model;

[0015] Figure 3 It is a schematic diagram of the outer frame structure of an embodiment of the utility model;

[0016] Figure 4 This is a schematic diagram of the inner plate structure of an embodiment of the utility model;

[0017] Figure 5 This is a diagram showing the use status of a piezoelectric nozzle protection cover according to an embodiment of the utility model;

[0018] In the figure: 1, outer frame; 11, mounting hole; 12, blocking portion; 13, slot; 2, inner plate; 21, blocking slot; 22, through hole. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0020] The utility model embodiment provides a piezoelectric nozzle protection cover, such as Figure 1-5 As shown, it includes an outer frame 1 and an inner plate 2. The outer frame 1 is a rectangular parallelepiped. A mounting hole 11 is provided in the middle of the outer frame 1. The mounting hole 11 is a rectangular parallelepiped. The inner plate 2 is a rectangular parallelepiped. The inner plate 2 is arranged inside the mounting hole 11. Blocking parts 12 are provided on the upper and lower sides of the front side of the mounting hole 11. The backs of the two blocking parts 12 are respectively abutted against the upper and lower sides of the front side of the inner plate 2. Card grooves 13 are provided on the left and right sides of the front side of the mounting hole 11. The left and right sides of the blocking part 12 are respectively arranged inside the two card grooves 13.

[0021] During assembly, the left side of the inner plate 2 is inserted into the slot 13 on the left side of the front side of the mounting hole 11 from the back side of the mounting hole 11. After the left side of the inner plate 2 is inserted into the slot 13 on the left side of the front side of the mounting hole 11, press the right side of the inner plate 2 so that the right side of the inner plate 2 is inserted into the slot 13 on the right side of the front side of the mounting hole 11 from the back side of the mounting hole 11 through interference fit, and the assembly of the protective cover is completed.

[0022] When in use, the front end of the piezoelectric nozzle is inserted into the mounting hole 11 from the back of the mounting hole 11 of the protective cover, and the protective cover can be installed on the piezoelectric nozzle to protect the piezoelectric nozzle, prevent the surface of the ink outlet area at the front end of the piezoelectric nozzle from being scratched, and reduce the risk of ink clogging the ink outlet of the piezoelectric nozzle due to the UV light of the inkjet machine irradiating the ink outlet of the piezoelectric nozzle.

[0023] When disassembling, hold the left and right sides of the outer frame 1 with both hands respectively, and press the left and right sides of the front side of the inner plate 2 with the thumbs of both hands respectively. The left and right sides of the inner plate 2 will be deformed and bent under the pressure, and disengage from the slots 13 on the left and right sides of the front side of the installation hole 11, and the protective cover can be disassembled.

[0024] In this embodiment, the blocking portion 12 is integrally formed with the outer frame 1, which can make the structure of the outer frame 1 simpler. At the same time, the blocking portion 12 is long and arranged along the length direction of the mounting hole 11. The length of the blocking portion 12 is smaller than the length of the mounting hole 11. The card slot 13 is long and arranged along the width direction of the mounting hole 11. The left and right sides of the inner plate 2 can be conveniently inserted into the card slots 13 on the left and right sides of the front side of the mounting hole 11, or the left and right sides of the inner plate 2 can be pressed out from the card slots 13 on the left and right sides of the front side of the mounting hole 11, so that the outer frame 1 and the inner plate 2 can be easily disassembled.

[0025] In this embodiment, the thickness of the blocking portion 12 is less than the depth of the slot 13, and the sum of the thickness of the blocking portion 12 and the inner plate 2 is equal to the depth of the slot 13, so that the left and right sides of the inner plate 2 can be more conveniently inserted into the slots 13 on the left and right sides of the front of the mounting hole 11, respectively. At the same time, blocking grooves 21 that cooperate with the blocking portion 12 are provided on the upper and lower sides of the front of the inner plate 2 along its length direction. The blocking portion 12 can be inserted into the blocking groove 21 after installation so that the front of the outer frame 1 and the front of the inner plate 2 are in the same plane.

[0026] In this embodiment, a strip through hole 22 is provided in the middle of the inner plate 2 along its length direction. When the protective cover is installed on the piezoelectric nozzle, the through hole 22 can be opposite to the ink outlet hole at the front end of the piezoelectric nozzle, so that the ink can be sprayed out of the ink outlet hole of the piezoelectric nozzle.

[0027] The piezoelectric nozzle protective cover of the present embodiment can be conveniently disassembled between the outer frame 1 and the inner plate 2, so that a single component can be replaced when the outer frame 1 or the inner plate 2 is damaged. Compared with the traditional protective cover with an integrated structure, there is no need to replace the entire protective cover when the protective cover is damaged, thus saving a lot of materials and reducing costs.

[0028] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A piezoelectric nozzle protection cover, characterized in that: The invention comprises an outer frame (1) and an inner plate (2); a mounting hole (11) is provided in the middle of the outer frame (1); the inner plate (2) is arranged inside the mounting hole (11); blocking parts (12) are provided on both upper and lower sides of the front face of the mounting hole (11); the backs of the two blocking parts (12) are respectively in contact with the upper and lower sides of the front face of the inner plate (2); and slots (13) are provided on both left and right sides of the front face of the mounting hole (11); and the left and right sides of the blocking part (12) are respectively arranged inside the two slots (13).

2. A piezoelectric nozzle protection cover according to claim 1, characterized in that: The blocking portion (12) and the outer frame (1) are integrally formed.

3. The piezoelectric nozzle protection cover according to claim 1, characterized in that: The blocking portion (12) is in an elongated strip shape and is arranged along the length direction of the mounting hole (11).

4. The piezoelectric nozzle protection cover according to claim 1, characterized in that: The length of the blocking portion (12) is smaller than the length of the mounting hole (11).

5. The piezoelectric nozzle protection cover according to claim 1, characterized in that: The card slot (13) is in an elongated strip shape and is arranged along the width direction of the mounting hole (11).

6. The piezoelectric nozzle protection cover according to claim 1, characterized in that: The thickness of the blocking portion (12) is smaller than the depth of the card slot (13).

7. The piezoelectric nozzle protection cover according to claim 1, characterized in that: The inner plate (2) is provided with blocking grooves (21) matching with the blocking portion (12) along its length direction on both upper and lower sides of the front side.

8. The piezoelectric nozzle protection cover according to claim 1, characterized in that: The middle part of the inner plate (2) is provided with a strip-shaped through hole (22) along its length direction.

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