Sealing mechanism of toner cartridge

Abstract

The utility model relates to the technical field of toner cartridges, and discloses a sealing mechanism of a toner cartridge, which comprises a toner cartridge body and a protective cover, a groove is arranged at the end of the toner cartridge body, a guide port is arranged at the bottom of the groove, a threaded shaft is rotatably arranged in the middle of one side of the protective cover in a penetrating manner, a sleeve is mounted on the outer side of the threaded shaft by matching with threads, and a sealing plug block is mounted on the outer side of the sleeve; limiting rods are installed at the bottoms of the grooves, positioning frames are arranged on the two opposite sides of the sleeve respectively, and guide holes matched with the limiting rods to penetrate in a sliding mode are formed in the positioning frames. Compared with the prior art, the sealing device has the advantages that the positioning frame is arranged on the outer side of the limiting rod in a sleeving mode, the sleeve is limited through the limiting rod, the threaded shaft rotates to drive the sleeve to transversely move, the sealing plug block is conveyed into the material guiding opening, the sealing plug block ensures good sealing performance, and the stability of the sealing plug block is ensured by positioning the threaded shaft; and the sealing plug block is prevented from falling off from the material guide opening.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon powder boxes, in particular to a sealing mechanism of a carbon powder box. Background Art

[0002] The toner cartridge is one of the most important consumables of a laser printer and an important component of the printer. After use, the cover of the existing toner cartridge is usually opened to add toner inside.

[0003] However, the protective cover of the existing toner cartridge is usually directly plugged into the feeding port with a sealing plug to achieve sealing. However, people will find that this sealing method is easy to fall off during use because the sealing plug is not fixed;

[0004] Some toner cartridges are sealed with threads, but this sealing method is too simple in structure and can easily cause powder leakage. Utility Model Content

[0005] 1. Technical Problems Solved

[0006] The technical problem to be solved by the utility model is that the sealing plug is directly plugged into the feeding port, which is easy to fall off, and the threaded sealing method is used, which is easy to cause powder leakage.

[0007] 2. Technical Solution

[0008] In order to solve the above technical problems, the technical solution provided by the utility model is as follows: a sealing mechanism of a toner cartridge, comprising a toner cartridge body, a nozzle is provided at one end of the toner cartridge body and a protective cover is installed at the other end, a groove is provided at the end where the toner cartridge body and the protective cover are connected, a material guide port is provided at the bottom of the groove, a threaded shaft is rotated through the middle of one side of the protective cover close to the toner cartridge body, a sleeve is installed on the outer side of the threaded shaft in matching thread, and a sealing plug block matching the material guide port is installed on the outer side of the sleeve;

[0009] The groove is provided with side grooves on opposite sides, and limit rods are installed at the bottom of the groove and inside the two groups of side grooves. The sleeve is provided with positioning frames on opposite sides, and the positioning frames are provided with guide holes for the limit rods to slide through.

[0010] As an improvement, the material guide port is a truncated cone structure, and the radius of one end of the material guide port close to the protective cover is larger than the radius of the other end.

[0011] As an improvement, a mounting groove is provided on a side of the protective cover away from the toner cartridge body, and one end of the threaded shaft passes through the mounting groove and is provided with a hand wheel.

[0012] As an improvement, a connecting block is integrally formed on one side of the hand wheel, a hand-tightening bolt is passed through the connecting block, and a plurality of threaded holes for inserting the hand-tightening bolt are provided at the bottom of the mounting groove.

[0013] As an improvement, the plurality of groups of threaded holes are arranged in a circle with the threaded axis as the axis.

[0014] As an improvement, a rotating handle is installed at an eccentric position on one side of the handwheel away from the threaded shaft.

[0015] As an improvement, two hand-tightening bolts are respectively installed at two opposite corners of the protective cover, and two threaded holes for inserting the two hand-tightening bolts are provided at two opposite corners of the end of the toner cartridge body.

[0016] 3. Beneficial Effects

[0017] The advantages of the utility model compared with the prior art are: after the protective cover is installed to the rear end of the toner cartridge body, the positioning frame is sleeved on the outside of the limiting rod, the sleeve is limited by the limiting rod, the rotation of the threaded shaft drives the sleeve to move laterally, and the sealing plug is sent to the material guide port, the sealing plug ensures good sealing, and the stability of the sealing plug is ensured by positioning the threaded shaft, thereby preventing the sealing plug from falling off from the material guide port. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a schematic diagram of the overall structure of a sealing mechanism of a carbon powder box.

[0019] Figure 2 The utility model is a schematic diagram of the rear end structure of a sealing mechanism of a carbon powder box.

[0020] Figure 3 The utility model is a schematic diagram of the front structure of a protective cover of a sealing mechanism of a carbon powder box.

[0021] Figure 4 The utility model is a schematic diagram of the rear structure of a protective cover of a sealing mechanism of a carbon powder box.

[0022] As shown in the figure: 1. Toner cartridge body; 2. Nozzle; 3. Protective cover; 4. Groove; 5. Material guide port; 6. Side groove; 7. Limit rod; 8. Mounting groove; 9. Threaded shaft; 10. Sleeve; 11. Positioning frame; 12. Guide hole; 13. Sealing plug; 14. Hand wheel; 15. Connecting block; 16. Thumb bolt one; 17. Threaded hole one; 18. Thumb bolt two; 19. Threaded hole two; 20. Turning handle. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] Embodiment 1

[0025] As attached Figure 1 -Attached Figure 4 As shown, a sealing mechanism of a toner cartridge comprises a toner cartridge body 1, a nozzle 2 is provided at one end of the toner cartridge body 1 and a protective cover 3 is installed at the other end, a groove 4 is provided at the end where the toner cartridge body 1 and the protective cover 3 are connected, a material guide port 5 is provided at the bottom of the groove 4, a threaded shaft 9 is rotated and passed through the middle of one side of the protective cover 3 close to the toner cartridge body 1, a sleeve 10 is threadedly installed on the outer side of the threaded shaft 9, and a sealing plug 13 matching the material guide port 5 is installed on the outer side of the sleeve 10;

[0026] The groove 4 is provided with side grooves 6 on opposite sides, and limit rods 7 are installed at the bottom of the groove 4 and inside the two groups of side grooves 6. The sleeve 10 is provided with positioning frames 11 on opposite sides, and the positioning frames 11 are provided with guide holes 12 for the limit rods 7 to slide through. The protective cover 3 is provided with a mounting groove 8 on the side away from the toner cartridge body 1, and one end of the threaded shaft 9 passes through the mounting groove 8 and is installed with a hand wheel 14.

[0027] Through the above structure, the protective cover 3 is connected to the rear end of the toner cartridge body 1, the limiting rod 7 is inserted into the guide hole 12 on the positioning frame 11, the sleeve 10 is limited, the hand wheel 14 is turned to drive the threaded shaft 9 to rotate, and the sleeve 10 is driven by the threaded shaft 9 to move into the guide port 5, and the sealing plug 13 is plugged into the guide port 5. The situation of the sealing plug 13 entering the guide port 5 is determined according to the rotation resistance of the hand wheel 14. The specific structure is as follows:

[0028] Combined with Figure 2 As shown, the material guide port 5 is a truncated cone structure, and the radius of one end of the material guide port 5 close to the protective cover 3 is larger than the radius of the other end.

[0029] Through the above structure, the material guide port 5 is a truncated cone structure, so that the deeper the sealing plug 13 enters the material guide port 5, the tighter it is pressed against the inner wall of the material guide port 5. When the rotation resistance of the hand wheel 14 is large, the sealing performance is better.

[0030] Combined with Figure 2 and attached Figure 3As shown, two hand-tightening bolts 18 are respectively installed at two opposite corners of the protective cover 3, and two threaded holes 19 for inserting the hand-tightening bolts 18 are provided at two opposite corners of the end of the toner cartridge body 1.

[0031] Through the above structure, the second hand-tightening bolt 18 passes through the protective cover 3 and is installed inside the second threaded hole 19 , so that the protective cover 3 is fixedly installed to the rear end of the toner cartridge body 1 .

[0032] Embodiment 2

[0033] Based on Example 1, please refer to the attached Figure 4 A connecting block 15 is integrally formed on one side of the hand wheel 14, and a hand screw bolt 16 passes through the connecting block 15. A plurality of threaded holes 17 for inserting the hand screw bolt 16 are provided at the bottom of the mounting groove 8. The plurality of threaded holes 17 are arranged in a circle with the threaded shaft 9 as the axis. A rotating handle 20 is installed at an eccentric position on one side of the hand wheel 14 away from the threaded shaft 9.

[0034] Through the above structure of the second embodiment, it is more convenient to drive the hand wheel 14 to rotate by turning the handle 20. When the rotation resistance of the hand wheel 14 is large, the hand screw bolt 16 on the connecting block 15 can be moved to be aligned with the nearest set of threaded holes 17, and the hand screw bolt 16 can be rotated to pass through the threaded hole 17 to position the hand wheel 14 to prevent the threaded shaft 9 from rotating and affecting the sealing effect of the sealing plug 13 on the material guide port 5.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0037] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A sealing mechanism for a toner cartridge, comprising a toner cartridge body (1), wherein one end of the toner cartridge body (1) is provided with a nozzle (2) and the other end is provided with a protective cover (3), wherein: The end of the toner cartridge body (1) connected to the protective cover (3) is provided with a groove (4), the bottom of the groove (4) is provided with a material guide port (5), a threaded shaft (9) is rotated and passed through the middle of one side of the protective cover (3) close to the toner cartridge body (1), a sleeve (10) is threadedly mounted on the outer side of the threaded shaft (9), and a sealing plug (13) matching the material guide port (5) is mounted on the outer side of the sleeve (10); The groove (4) is provided with side grooves (6) on opposite sides, and limit rods (7) are installed at the bottom of the groove (4) and inside the two groups of side grooves (6). The sleeve (10) is provided with positioning frames (11) on opposite sides, and the positioning frames (11) are provided with guide holes (12) for the limit rods (7) to slide through.

2. The sealing mechanism of a toner cartridge according to claim 1, characterized in that: The material guide port (5) is a truncated cone-shaped structure, and the radius of one end of the material guide port (5) close to the protective cover (3) is larger than the radius of the other end.

3. The sealing mechanism of a toner cartridge according to claim 1, characterized in that: A mounting groove (8) is provided on a side of the protective cover (3) away from the toner cartridge body (1); one end of the threaded shaft (9) passes through the interior of the mounting groove (8) and is provided with a hand wheel (14).

4. A sealing mechanism for a toner cartridge according to claim 3, characterized in that: A connecting block (15) is integrally formed on one side of the hand wheel (14), a hand-tightening bolt (16) passes through the connecting block (15), and a plurality of threaded holes (17) for inserting the hand-tightening bolt (16) are provided at the bottom of the mounting groove (8).

5. The sealing mechanism of a toner cartridge according to claim 4, characterized in that: The plurality of groups of threaded holes (17) are arranged in a circle with the threaded shaft (9) as the axis.

6. The sealing mechanism of a toner cartridge according to claim 3, characterized in that: A rotating handle (20) is installed at an eccentric position on one side of the hand wheel (14) away from the threaded shaft (9).

7. The sealing mechanism of a toner cartridge according to claim 1, characterized in that: Two hand-tightening bolts (18) are respectively installed at two opposite corners of the protective cover (3), and two threaded holes (19) for inserting the two hand-tightening bolts (18) are provided at two opposite corners of the end of the toner cartridge body (1).

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