Ink leakage prevention printing head converter

Abstract

The utility model relates to a printing head converter capable of preventing ink leakage. The printing head converter comprises a body and an ink cavity arranged in the body, wherein the body is further provided with an ink inlet hole and an ink outlet hole, the ink inlet hole is located above the ink cavity, the ink outlet hole is located below the ink cavity, the ink inlet hole and the ink outlet hole are both communicated with the ink cavity, and ink is stored in the ink cavity; the ink inlet hole in the body is used for feeding ink into the ink cavity, and the ink outlet hole is used for discharging ink and is in interference fit with an ink inlet nozzle of the printing head through the embedded sealing ring, so that ink leakage caused by an overlarge gap is prevented; when the ink inlet nozzle of the printing head penetrates through the sealing ring and enters the ink cavity, the ink leakage prevention mechanism is pushed to be started, so that the ink inlet nozzle of the printing head sucks ink in the ink cavity; after the ink inlet nozzle of the printing head retreats from the ink cavity, the ink leakage prevention mechanism is automatically closed, and the ink is retained in the ink cavity; the situation of ink leakage is prevented when the ink inlet nozzle of the printing head is pulled out, and quick insertion and quick disassembly of the printing head are achieved through the sealing ring. The structure is simple, the cost is low and the size is small.

Description

Technical Field

[0001] The utility model relates to the technical field of large-format printers, and more specifically to an ink leakage-proof printing head converter. Background Art

[0002] When replacing the print head of a large-format printer, you need to unplug the ink tube on the ink nozzle. When the ink tube is unplugged, the ink tube often leaks ink, which seriously affects the user experience. In addition, plugging and unplugging the ink tube is also cumbersome.

[0003] Therefore, there is an urgent need for an anti-ink leakage print head converter to prevent ink leakage from the ink tube when replacing the print head and to achieve quick connection of the print head. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a quick-insertion and quick-disassembly anti-ink leakage print head converter which has a simple structure, low cost and small size and can prevent ink leakage when the print head is unplugged, in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] An anti-leakage ink print head converter is constructed, comprising a body and an ink cavity arranged in the body; wherein the body is further provided with an ink inlet hole and an ink outlet hole, the ink inlet hole is located above the ink cavity, the ink outlet hole is located below the ink cavity, the ink inlet hole and the ink outlet hole are both connected to the ink cavity, and the ink cavity stores ink;

[0007] A sealing ring is embedded in the ink outlet hole, and the sealing ring and the ink outlet hole are in interference fit, and the hole of the sealing ring and the ink inlet nozzle of the external print head are also in interference fit; the sealing ring is made of rubber;

[0008] An ink leakage prevention mechanism is provided in the ink cavity. When the ink inlet nozzle of the print head passes through the sealing ring and enters the ink cavity, the ink leakage prevention mechanism is pushed to open, and the ink inlet nozzle of the print head sucks the ink in the ink cavity; after the ink inlet nozzle of the print head exits the ink cavity, the ink leakage prevention mechanism is automatically closed, and the ink is retained in the ink cavity.

[0009] The ink leakage prevention print head converter described in the utility model, wherein the body is further provided with a limiting hole, the limiting hole is located below the ink outlet hole and has a diameter smaller than the outer ring diameter of the sealing ring and larger than the diameter of the hole of the sealing ring.

[0010] The ink leakage prevention print head converter of the utility model is characterized in that the bottom edge of the limiting hole is chamfered.

[0011] The ink leakage prevention print head converter of the utility model, wherein the ink chamber comprises: a first through hole and a second through hole, wherein the diameter of the first through hole is larger than the diameter of the second through hole and is located below the second through hole;

[0012] The diameter of the first through hole is larger than the diameter of the hole of the sealing ring and smaller than the outer ring diameter of the sealing ring;

[0013] The ink leakage prevention mechanism comprises: a T-shaped block and a spring, wherein the cross section of the T-shaped block is T-shaped, and the T-shaped block is composed of a plane block and a vertical rod; the plane block matches the first through hole, the vertical rod matches the second through hole, and the T-shaped block moves up and down in the ink chamber;

[0014] The plane block is also provided with a plurality of grooves, which are not directly opposite to the hole of the sealing ring. When the plane block is tightly attached to the sealing ring, the hole of the sealing ring is blocked. The spring is located in the first through hole and is sleeved on the vertical rod.

[0015] The ink leakage prevention print head converter of the utility model, wherein the ink chamber comprises: a first through hole and a second through hole, wherein the diameter of the first through hole is smaller than the diameter of the second through hole and is located below the second through hole;

[0016] The diameter of the first through hole is smaller than the outer ring diameter of the sealing ring;

[0017] The ink leakage prevention mechanism comprises: a steel ball, the diameter of the steel ball is larger than the diameter of the first through hole, and the cross section of the second through hole close to the first through hole is trumpet-shaped and faces the ink inlet hole.

[0018] In the ink leakage prevention print head converter of the utility model, the cross section of one end of the first through hole close to the second through hole is in an arc-shaped trumpet shape matching the steel ball.

[0019] In the ink leakage prevention print head converter of the utility model, the diameter of the first through hole is larger than the diameter of the hole of the sealing ring, and the steel ball blocks the hole of the sealing ring when it is close to the sealing ring.

[0020] The ink leakage prevention printing head converter of the utility model is characterized in that the ink inlet nozzle of the printing head is in a pointed shape.

[0021] The beneficial effects of the utility model are as follows: the ink inlet hole on the main body is used to feed ink into the ink cavity, the ink outlet hole is used to discharge ink and is interference fit with the ink inlet nozzle of the print head through the embedded sealing ring, so as to prevent ink leakage due to excessive gap; and when the ink inlet nozzle of the print head passes through the sealing ring and enters the ink cavity, the ink leakage prevention mechanism is pushed to open, so that the ink inlet nozzle of the print head sucks the ink in the ink cavity; and after the ink inlet nozzle of the print head exits the ink cavity, the ink leakage prevention mechanism is automatically closed, and the ink is retained in the ink cavity; ink leakage is prevented when the ink inlet nozzle of the print head is unplugged, and quick insertion and removal with the print head is achieved through the sealing ring; and the utility model has a simple structure, low cost and small size. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0023] Figure 1 It is a three-dimensional diagram of the ink leakage prevention print head converter of the preferred embodiment 1 and embodiment 2 of the utility model;

[0024] Figure 2 It is a cross-sectional view of the ink leakage prevention print head converter of the preferred embodiment 1 of the utility model;

[0025] Figure 3 It is an exploded view of the ink leakage prevention print head converter of the preferred embodiment 1 of the utility model;

[0026] Figure 4 It is a three-dimensional diagram of a T-shaped block of an ink leakage prevention print head converter of a preferred embodiment 1 of the utility model;

[0027] Figure 5 It is a cross-sectional view of the ink leakage prevention print head converter of the second preferred embodiment of the utility model. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the following will be described clearly and completely in combination with the technical solution in the embodiments of the utility model. Obviously, the described embodiments are partial embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model. Example

[0029] The ink leakage prevention print head converter of the preferred embodiment of the utility model is as follows Figure 1 See also Figures 2 to 4; It includes a body 100 and an ink cavity 110 disposed in the body 100; wherein the body 100 is further provided with an ink inlet hole 120 and an ink outlet hole 130, the ink inlet hole 120 is located above the ink cavity 110, and the ink outlet hole 130 is located below the ink cavity 110, the ink inlet hole 120 and the ink outlet hole 130 are both connected to the ink cavity 110, and the ink cavity 110 stores ink;

[0030] The ink outlet hole 130 is embedded with a sealing ring 131, and the sealing ring 131 and the ink outlet hole 130 are in interference fit, and the hole of the sealing ring 131 and the ink inlet nozzle of the external print head are also in interference fit; the sealing ring 131 is made of rubber material, which is easy to install;

[0031] The ink chamber 110 is provided with an ink leakage prevention mechanism 200. When the ink inlet nozzle of the print head passes through the sealing ring 131 and enters the ink chamber 110, the ink leakage prevention mechanism 200 is pushed to open, and the ink inlet nozzle of the print head sucks the ink in the ink chamber 110; after the ink inlet nozzle of the print head exits the ink chamber 110, the ink leakage prevention mechanism 200 is automatically closed, and the ink is retained in the ink chamber 110.

[0032] The ink inlet hole 120 on the body 100 is used to feed ink into the ink cavity 110, and the ink outlet hole 130 is used to discharge ink and is interference-fitted with the ink inlet nozzle of the print head through the embedded sealing ring 131 to prevent ink leakage due to excessive gap; and when the ink inlet nozzle of the print head passes through the sealing ring 131 and enters the ink cavity 110, it pushes the ink leakage prevention mechanism 200 to open, so that the ink inlet nozzle of the print head sucks the ink in the ink cavity 110; and after the ink inlet nozzle of the print head exits the ink cavity 110, the ink leakage prevention mechanism 200 is automatically closed, and the ink is retained in the ink cavity 110; ink leakage is prevented when the ink inlet nozzle of the print head is unplugged, and quick insertion and removal with the print head is achieved through the sealing ring 131; the structure is simple, the cost is low, and the volume is small.

[0033] like Figures 1 to 3 As shown, a limiting hole 140 is further provided on the main body 100 . The limiting hole 140 is located below the ink outlet hole 130 and has a diameter smaller than the outer diameter of the sealing ring 131 and larger than the diameter of the hole of the sealing ring 131 . The limiting hole 140 cooperates with the ink chamber 110 to limit the sealing ring 131 .

[0034] like Figure 4 and Figure 5 As shown, the bottom edge of the limiting hole 140 is chamfered; it is aesthetically pleasing and can also serve as a guide.

[0035] like Figures 1 to 4 As shown, the ink chamber 110 includes: a first through hole 111 and a second through hole 112, wherein the diameter of the first through hole 111 is greater than the diameter of the second through hole 112 and is located below the second through hole 112;

[0036] The diameter of the first through hole 111 is larger than the diameter of the hole of the sealing ring 131 and smaller than the outer diameter of the sealing ring 131;

[0037] The ink leakage prevention mechanism 200 includes: a T-shaped block 210 and a spring 220. The cross section of the T-shaped block 210 is T-shaped. The T-shaped block 210 is composed of a plane block 211 and a vertical rod 212. The plane block 211 matches the first through hole 111, and the vertical rod 212 matches the second through hole 112. The T-shaped block 210 moves up and down in the ink chamber 110.

[0038] A plurality of grooves 213 are also provided on the plane block 211. The grooves 213 are not directly opposite to the holes of the sealing ring 131. When the plane block 211 is tightly attached to the sealing ring 131, the holes of the sealing ring 131 are blocked. The spring 220 is located in the first through hole 111 and is sleeved on the vertical rod 212. The grooves 213 are provided for ink discharge. The elastic force of the spring 220 is used to push the plane block 211 against the sealing ring 131 to block the holes of the sealing ring 131, which has a stronger effect.

[0039] like Figure 4 As shown, the ink inlet nozzle of the print head is pointed, which can push the T-shaped block 210 of the ink leakage prevention mechanism 200 without affecting ink absorption. Example

[0040] The ink leakage prevention print head converter of the second preferred embodiment of the utility model is as follows Figure 5 See also Figure 1 , comprising a body 100 and an ink cavity 110 disposed in the body 100; wherein the body 100 is further provided with an ink inlet hole 120 and an ink outlet hole 130, the ink inlet hole 120 is located above the ink cavity 110, the ink outlet hole 130 is located below the ink cavity 110, the ink inlet hole 120 and the ink outlet hole 130 are both connected to the ink cavity 110, and the ink cavity 110 stores ink;

[0041] The ink outlet hole 130 is embedded with a sealing ring 131, and the sealing ring 131 and the ink outlet hole 130 are in interference fit, and the hole of the sealing ring 131 and the ink inlet nozzle of the external print head are also in interference fit; the sealing ring 131 is made of rubber material, which is easy to install;

[0042] The ink chamber 110 is provided with an ink leakage prevention mechanism 200. When the ink inlet nozzle of the print head passes through the sealing ring 131 and enters the ink chamber 110, the ink leakage prevention mechanism 200 is pushed to open, and the ink inlet nozzle of the print head sucks the ink in the ink chamber 110; after the ink inlet nozzle of the print head exits the ink chamber 110, the ink leakage prevention mechanism 200 is automatically closed, and the ink is retained in the ink chamber 110.

[0043] The ink inlet hole 120 on the body 100 is used to feed ink into the ink cavity 110, and the ink outlet hole 130 is used to discharge ink and is interference-fitted with the ink inlet nozzle of the print head through the embedded sealing ring 131 to prevent ink leakage due to excessive gap; and when the ink inlet nozzle of the print head passes through the sealing ring 131 and enters the ink cavity 110, it pushes the ink leakage prevention mechanism 200 to open, so that the ink inlet nozzle of the print head sucks the ink in the ink cavity 110; and after the ink inlet nozzle of the print head exits the ink cavity 110, the ink leakage prevention mechanism 200 is automatically closed, and the ink is retained in the ink cavity 110; ink leakage is prevented when the ink inlet nozzle of the print head is unplugged, and quick insertion and removal with the print head is achieved through the sealing ring 131; the structure is simple, the cost is low, and the volume is small.

[0044] like Figure 5 As shown, a limiting hole 140 is further provided on the main body 100 . The limiting hole 140 is located below the ink outlet hole 130 and has a diameter smaller than the outer diameter of the sealing ring 131 and larger than the diameter of the hole of the sealing ring 131 . The limiting hole 140 cooperates with the ink chamber 110 to limit the sealing ring 131 .

[0045] like Figure 5 As shown, the bottom edge of the limiting hole 140 is chamfered; it is aesthetically pleasing and can also serve as a guide.

[0046] like Figure 5 As shown, the ink chamber 110 includes: a first through hole 111 and a second through hole 112, wherein the diameter of the first through hole 111 is smaller than the diameter of the second through hole 112 and is located below the second through hole 112;

[0047] The diameter of the first through hole 111 is smaller than the outer diameter of the sealing ring 131;

[0048] The ink leakage prevention mechanism 200 includes: a steel ball 200, the diameter of the steel ball 200 is larger than the diameter of the first through hole 111, and the cross section of the second through hole 112 close to the first through hole 111 is trumpet-shaped and faces the ink inlet hole 120, so that after the ink inlet nozzle of the print head is unplugged, the steel ball 200 is guided to fall on the first through hole 111 by gravity, and the first through hole 111 is blocked to prevent ink leakage;

[0049] The diameter of the steel ball 200 is smaller than the diameter of the ink inlet nozzle and larger than the diameter of the hole of the liquid inlet nozzle 150 installed on the ink inlet hole 120, so as to facilitate assembly and prevent the steel ball 200 from leaking out.

[0050] like Figure 5 As shown, the cross section of the first through hole 111 at one end close to the second through hole 112 is in an arc-shaped trumpet shape matching the steel ball 200, which is further sealed to prevent ink leakage.

[0051] like Figure 5As shown, the diameter of the first through hole 111 is larger than the diameter of the hole of the sealing ring 131, and the steel ball 200 blocks the hole of the sealing ring 131 when it is close to the sealing ring 131, thereby achieving double ink leakage prevention.

[0052] like Figure 5 As shown, the ink inlet nozzle of the print head is pointed, which can push the steel ball 200 of the ink leakage prevention mechanism 200 without affecting ink absorption.

[0053] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. An anti-leakage ink print head converter, comprising a body and an ink chamber arranged in the body; characterized in that: The body is also provided with an ink inlet hole and an ink outlet hole, wherein the ink inlet hole is located above the ink cavity, and the ink outlet hole is located below the ink cavity, and both the ink inlet hole and the ink outlet hole are connected to the ink cavity, and ink is stored in the ink cavity; A sealing ring is embedded in the ink outlet hole, and the sealing ring and the ink outlet hole are in interference fit, and the hole of the sealing ring and the ink inlet nozzle of the external print head are also in interference fit; the sealing ring is made of rubber; An ink leakage prevention mechanism is provided in the ink cavity. When the ink inlet nozzle of the print head passes through the sealing ring and enters the ink cavity, the ink leakage prevention mechanism is pushed to open, and the ink inlet nozzle of the print head sucks the ink in the ink cavity; after the ink inlet nozzle of the print head exits the ink cavity, the ink leakage prevention mechanism is automatically closed, and the ink is retained in the ink cavity.

2. The ink leakage-proof print head converter according to claim 1, characterized in that: The body is also provided with a limiting hole, which is located below the ink outlet hole and has a diameter smaller than the outer ring diameter of the sealing ring and larger than the diameter of the hole of the sealing ring.

3. The ink leakage-proof print head converter according to claim 2, characterized in that: The bottom edge of the limiting hole is chamfered.

4. The ink leakage-proof print head converter according to claim 2, characterized in that: The ink chamber comprises: a first through hole and a second through hole, wherein the diameter of the first through hole is larger than the diameter of the second through hole and is located below the second through hole; The diameter of the first through hole is larger than the diameter of the hole of the sealing ring and smaller than the outer ring diameter of the sealing ring; The ink leakage prevention mechanism comprises: a T-shaped block and a spring, wherein the cross section of the T-shaped block is T-shaped, and the T-shaped block is composed of a plane block and a vertical rod; the plane block matches the first through hole, the vertical rod matches the second through hole, and the T-shaped block moves up and down in the ink chamber; The plane block is also provided with a plurality of grooves, which are not directly opposite to the hole of the sealing ring. When the plane block is tightly attached to the sealing ring, the hole of the sealing ring is blocked. The spring is located in the first through hole and is sleeved on the vertical rod.

5. The ink leakage-proof print head converter according to claim 2, characterized in that: The ink chamber comprises: a first through hole and a second through hole, wherein the diameter of the first through hole is smaller than the diameter of the second through hole and is located below the second through hole; The diameter of the first through hole is smaller than the outer ring diameter of the sealing ring; The ink leakage prevention mechanism comprises: a steel ball, the diameter of the steel ball is larger than the diameter of the first through hole, and the cross section of the second through hole close to the first through hole is trumpet-shaped and faces the ink inlet hole.

6. The ink leakage-proof print head converter according to claim 5, characterized in that: The cross section of one end of the first through hole close to the second through hole is in an arc-shaped trumpet shape matching the steel ball.

7. The ink leakage-proof print head converter according to claim 5, characterized in that: The diameter of the first through hole is greater than the diameter of the hole of the sealing ring, and the steel ball blocks the hole of the sealing ring when it is close to the sealing ring.

8. The ink leakage-proof print head converter according to claim 1, characterized in that: The ink inlet nozzle of the printing head is in a pointed shape.

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