A leak-proof toner cartridge with high sealing performance

Abstract

The invention discloses a highly airtight anti-leakage toner cartridge, comprising: a cartridge body, a developing sleeve and a sealing component, wherein side shells are arranged on both sides of the cartridge body, a starting component and a linkage component are arranged in the side shells, a scraper is arranged at the top of the developing sleeve, the sealing component comprises a plugging piece, a rotating shaft and a connecting rod, the plugging piece is installed in the gap between the developing sleeve, the scraper and the cartridge body, the connecting rod is fixedly connected to the rotating shaft, the starting component abuts against the linkage component, the connecting rod is connected to the linkage component, a thin sealing piece is arranged at the gap at the bottom end of the developing sleeve, the sealing component of the invention abuts against the developing sleeve and the scraper at the top end of the developing sleeve, thereby sealing the gap at the top end, abuts against the developing sleeve at the bottom end of the developing sleeve by the plugging piece and the thin sealing piece, thereby sealing the gap at the bottom end, and the linkage component is tightened between the two sealing components, so that a high sealing effect is achieved between the cartridge body and the developing sleeve, thereby preventing the toner cartridge from leaking during transportation and use.

Description

Technical Field

[0001] The invention relates to the field of carbon powder boxes, in particular to a leakage-proof carbon powder box with high sealing performance. Background Art

[0002] The toner cartridge is also called a carbon powder cartridge. When the printer is printing, the developing sleeve is charged, and the carbon powder in the toner cartridge is adsorbed onto the developing sleeve. The toner is transferred to the photosensitive drum used for printing through the rotation of the developing sleeve.

[0003] In the existing equipment, because the developing sleeve transfers toner by rotation, a gap needs to be left at the lower end of the toner cartridge after rotation to prevent the toner remaining on the sleeve from being scraped off by the toner cartridge shell and falling onto the paper. As a result, the sealing of the toner cartridge is poor, and toner leakage may occur during transportation.

[0004] In the prior art, a cover is usually put on one end of the developing sleeve on the toner cartridge to prevent the toner from leaking out and contaminating surrounding objects during transportation. However, the toner in the toner cartridge will still leak into the cover, and the toner will still be affected by the leaked toner during unpacking and installation. At the same time, after the toner cartridge is installed in the printer, when it is not working, it will be vibrated and some toner will be transferred out from the gap below, contaminating the machine and the photosensitive drum, causing stains on the print, and affecting the print effect. Summary of the invention

[0005] In view of the above problems, the present invention provides a leakage-proof toner cartridge with high sealing performance.

[0006] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a highly sealed anti-leakage toner cartridge, comprising: a box body, a developing sleeve and a closing assembly, the box body being a chamber for accommodating toner, an opening being provided at the front end of the box body, side shells being provided on both sides of the box body, a gear set being provided in the side shell on one side, and a starting assembly and a linkage assembly being provided in the side shell on the other side, shaft heads being provided at both ends of the developing sleeve and being installed at the opening at the front end of the box body through the shaft heads, the shaft heads penetrating into the side shells, one end of the developing sleeve being connected to the gear set in the side shell, and a scraper being provided at the gap between the top end of the developing sleeve and the box body.

[0007] Among them, the closing component includes a blocking piece, a rotating shaft and a connecting rod. The blocking piece is installed on the gap between the top end of the developing sleeve and the scraper, and the bottom end of the developing sleeve and the box body through the rotating shaft and is used to block these gaps. The connecting rod is located in the side shell and is fixedly connected to the rotating shaft. The starting component is installed on the shaft head and is against the linkage component in the side shell. A transmission pin is provided on the connecting rod in the side shell, and the transmission pin is connected to the linkage component. A thin elastic sealing piece is provided on the box body at the gap between the bottom end of the developing sleeve and the box body, and the blocking piece located here is against the thin sealing piece at the bottom end of the thin sealing piece.

[0008] Furthermore, a rubber strip or a cotton strip for filling the gap between the blocking piece at the top end of the developing sleeve and the scraper is provided to avoid an open gap between the blocking piece and the scraper, thereby improving the overall sealing effect.

[0009] Furthermore, the starting assembly includes a limit cover, a top shaft and a rotating top head, the top shaft is installed in the side shell through the limit cover, the inner end of the top shaft is provided with a hole and is nested on the shaft head, the top shaft and the rotating top head are nested with each other through a bearing, a spring is provided between the rotating top head and the inner wall of the side shell, which is used to provide the rotating top head with an elastic force pointing in the direction of the shaft head, and a rubber layer is provided between the top shaft and the rotating top head.

[0010] Among them, the outer side of the rotating head is in the shape of a truncated cone, and the end with a smaller diameter is against the spring, while the end with a larger diameter points in the direction of the shaft head. A bayonet is provided on the shaft head, and a guide groove is provided on the inner wall of the top shaft hole. The bayonet is engaged with one end of the guide groove close to the rotating head. The guide groove is inclined on the inner wall, and the inclination direction of the guide groove is opposite.

[0011] Furthermore, the linkage assembly includes a swing arm and a tensioning piece. The tail of the swing arm is connected to the side shell through a hinge. The swing arm is provided with two and is symmetrically distributed on the upper and lower sides of the rotating head. The tensioning piece is provided between the two swing arms. An inclined block is provided in the middle of the swing arm, and the inclined block is abutted against the rotating head. The head of the swing arm is provided with a snap-fitting groove, and the snap-fitting groove is nested with the transmission pin.

[0012] Preferably, a bonding layer is provided on the side of the blocking piece in contact with the developing sleeve, and the bonding layer is made of one of rubber and cotton to ensure contact between the blocking piece and the developing sleeve, and the thin sealing piece is made of one of plastic and rubber.

[0013] Preferably, the tensioning member is one of a tension spring and an elastic rope, and is used to provide elastic force for tensioning the two swing arms.

[0014] Beneficial Effects

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention provides sealing components at both the upper and lower ends of the developing sleeve. A blocking piece is used at the top of the developing sleeve to abut against the developing sleeve and the scraper, thereby closing the gap at the top of the developing sleeve. The blocking piece and the thin sealing piece are used to abut against the developing sleeve at the bottom of the developing sleeve to further abut against the developing sleeve, thereby closing the gap at the bottom of the developing sleeve. The two sealing components are tightened by the tensioning member of the linkage component, so that a high sealing effect is achieved between the box body and the developing sleeve, thereby preventing the toner leakage during the transportation and use of the toner cartridge.

[0017] 2. When in use, the rotation of the developing sleeve drives the shaft head to rotate. Since an opposing rubber layer is provided between the top shaft and the rotating top head, the shaft head can cooperate with the guide groove through the bayonet pin to drive the top shaft to be ejected outward, so that the rotating top head is driven by the top shaft to compress the spring to be ejected outward. At the same time, the conical inclined surface on the outside of the rotating top head presses against the inclined block in the middle of the swing arm, driving the two swing arms to overcome the tension of the tensioning piece and expand to both sides, and then utilizes the locking groove and the transmission pin to nest to drive the closing component to expand. Since these actions are completed in an instant, the work of the developing sleeve will not be interfered with, and thus the toner cartridge can be opened in time for use when it is highly sealed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure is a schematic diagram of the appearance structure of the toner cartridge of the present invention.

[0019] Figure 2 It is a schematic diagram of the right cross-section structure of the toner cartridge of the present invention.

[0020] Figure 3 It is a left-side cross-sectional structural schematic diagram of the toner cartridge of the present invention.

[0021] Figure 4 Schematic diagram of the local three-dimensional structure of the closed component.

[0022] Figure 5 Schematic diagram of the three-dimensional structure of the linkage component.

[0023] Figure 6 This is a schematic diagram of the rear cutaway structure of the startup component.

[0024] Figure 7 A 3D exploded diagram of the startup component.

[0025] In the figure: 1, box body; 2, developing sleeve; 3, side shell; 4, scraper; 5, gear set; 6, closing assembly; 7, linkage assembly; 8, starting assembly; 1a, thin cover; 2a, shaft head; 2b, latch; 61, blocking piece; 62, rotating shaft; 63, connecting rod; 64, transmission pin; 71, swing arm; 72, tensioning piece; 71a, inclined block; 71b, engaging groove; 81, limiting cover; 82, top shaft; 83, rotating top head; 84, bearing; 85, spring; 82a, guide groove. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the preferred implementation scheme of the present invention is further described below in conjunction with specific implementation schemes and accompanying drawings.

[0027] Embodiment 1

[0028] like Figure 1-Figure 4 As shown, the present invention provides a leakage-proof toner cartridge with high sealing performance, comprising: a box body 1, a developing sleeve 2 and a closing component 6, wherein the box body 1 has a chamber for accommodating toner, the front end of the box body 1 is provided with an opening, side shells 3 are provided on both sides of the box body 1, a gear group 5 is provided in the side shell 3 on one side, and a starting component 8 and a linkage component 7 are provided in the side shell 3 on the other side, shaft heads 2a are provided at both ends of the developing sleeve 2 and are installed at the opening at the front end of the box body 1 through the shaft heads 2a, the shaft heads 2a penetrate into the side shell 3, one end of the developing sleeve 2 is connected to the gear group 5 in the side shell 3, and a scraper 4 is provided at the gap between the top end of the developing sleeve 2 and the box body 1.

[0029] During printing, carbon powder or toner is loaded into the box body 1, the printer charges the developing sleeve 2, and drives the developing sleeve 2 to rotate through the gear set 5, so that the carbon powder in the toner cartridge is adsorbed onto the developing sleeve, and the toner is transferred to the photosensitive drum used for printing through the rotation of the developing sleeve 2.

[0030] Among them, the closing component 6 includes a blocking piece 61, a rotating shaft 62 and a connecting rod 63. The blocking piece 61 is installed at the gap between the top end of the developing sleeve 2 and the scraper 4, and the bottom end of the developing sleeve 2 and the box body 1 through the rotating shaft 62 and is used to block these gaps. The connecting rod 63 is located in the side shell 3 and is fixedly connected to the rotating shaft 62. The starting component 8 is installed on the shaft head 2a and is abutted against the linkage component 7 in the side shell 3. The connecting rod 63 in the side shell 3 is provided with a transmission pin 64, and the transmission pin 64 is connected to the linkage component 7. An elastic thin sealing piece 1a is provided on the box body 1 at the gap between the bottom end of the developing sleeve 2 and the box body 1. The blocking piece 61 located here abuts against the thin sealing piece 1a at the bottom end of the thin sealing piece 1a.

[0031] Furthermore, a rubber strip or a cotton strip is provided at the gap between the blocking piece 61 at the top end of the developing sleeve 2 and the scraper 4 to fill the gap.

[0032] Furthermore, a bonding layer is provided on the side of the blocking piece 61 that contacts the developing sleeve 2. The bonding layer is made of one of rubber and cotton to ensure contact between the blocking piece 61 and the developing sleeve 2. The thin sealing piece 1a is made of one of plastic and rubber.

[0033] Furthermore, the linkage assembly 7 includes a swing arm 71 and a tension piece 72. The tail of the swing arm 71 is connected to the side shell 3 through a hinge. The swing arm 71 is provided with two and is symmetrically distributed on the upper and lower sides of the rotating head 83. The tension piece 72 is provided between the two swing arms 71.

[0034] When in use, the tensioning piece 72 tightens the swing arm 71, so that the swing arm 71 cooperates with the transmission pin 64 through the engagement groove 71b, driving the two blocking pieces 61 to press against the developing sleeve 2, and the top of the developing sleeve 2 presses against the developing sleeve 2 and the scraper 4 through the blocking piece 61, thereby closing the gap at the top of the developing sleeve 2, and the bottom of the developing sleeve 2 further presses against the developing sleeve 2 through the blocking piece 61 and the thin sealing piece 1a, thereby closing the gap at the bottom of the developing sleeve 2, so that a high degree of sealing effect is achieved between the box body 1 and the developing sleeve 2, preventing toner leakage during transportation and use of the toner cartridge.

[0035] Embodiment 2

[0036] Based on the first embodiment, Figure 1-Figure 7 As shown, the starting assembly 8 includes a limit cover 81, a top shaft 82 and a rotating top head 83. The top shaft 82 is installed in the side shell 3 through the limit cover 81. The inner end of the top shaft 82 is provided with a hole and is nested on the shaft head 2a. The top shaft 82 and the rotating top head 83 are nested with each other through a bearing 84. A spring 85 is provided between the rotating top head 83 and the inner wall of the side shell 3, which is used to provide the rotating top head 83 with an elastic force pointing in the direction of the shaft head 2a.

[0037] Among them, the outer side of the rotating top head 83 is in the shape of a truncated cone, and the end with a small diameter is against the spring 85, while the end with a large diameter points to the direction of the shaft head 2a. The shaft head 2a is provided with a bayonet 2b, and the inner wall of the hole of the top shaft 82 is provided with a guide groove 82a. The bayonet 2b is engaged with one end of the guide groove 82a close to the rotating top head 83. The guide groove 82a is inclined on the inner wall, and the inclination direction of the guide groove 82a is opposite.

[0038] It should be noted that an abutting rubber layer is provided between the top shaft 82 and the rotating top head 83, so that when the shaft head 2a rotates and the rotating top head 83 is driven by the abutting pin 2b and the guide groove 82a, the abutting rubber layer can provide resistance to rotation around the axis, preventing the rotating top head 83 from rotating with it, allowing the pin 2b to smoothly push the rotating top head 83 out. After the rotating top head 83 is pushed out, the working rotation of the developing sleeve 2 will drive the shaft head 2a and the top shaft 82 to press on the rotating top head 83 and rotate through the bearing 84. At this time, normal rotational friction will occur between the abutting rubber layers.

[0039] Furthermore, an inclined block 71 a is provided in the middle of the swing arm 71 , and the inclined block 71 a abuts against the rotating head 83 . A snap-fit ​​groove 71 b is provided at the head of the swing arm 71 , and the snap-fit ​​groove 71 b is nested with the transmission pin 64 .

[0040] When in use, the rotation of the developing sleeve 2 drives the shaft head 2a to rotate. Since there is a resisting rubber layer between the top shaft 82 and the rotating top head 83, the shaft head 2a can cooperate with the guide groove 82a through the bayonet pin 2b to drive the top shaft 82 to be ejected outward, and the rotating top head 83 is driven by the top shaft 82 to press the spring 85 to be ejected outward. At the same time, the conical inclined surface on the outer side of the rotating top head 83 presses the inclined block 71a in the middle of the swing arm 71, driving the two swing arms 71 to overcome the pulling force of the tensioning piece 72 and expand to both sides, and then utilizes the locking groove 71b and the transmission pin 64 to nest to drive the closing component 6 to expand. Since these actions are completed in an instant, the work of the developing sleeve 2 will not be interfered with, and thus the toner cartridge can be opened in time for use when it is highly sealed.

[0041] Embodiment 3

[0042] On the basis of the first embodiment, the tensioning member 72 used to provide elastic force for tightening the two swing arms 71 is one of a tension spring and an elastic rope. When the elastic rope is used, the installation is more complicated, but the space occupied is small, and the tensioning elastic force can be adjusted by using different lengths; when the tension spring is used, the installation is more convenient, but the space occupied is larger, and the tensioning elastic force of the tension spring cannot be adjusted separately, and only springs of different specifications can be used.

[0043] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] Therefore, no matter from which point of view, the embodiments should be regarded as illustrative and non-restrictive, and the scope of the present invention is limited by the appended claims rather than the above description, so it is intended that all changes falling within the meaning and range of equivalent elements of the claims are included in the present invention. Any reference sign in the claims should not be regarded as limiting the claims involved.

Claims

1. A highly leak-proof toner cartridge, characterized in that: include: A box body (1), wherein the box body (1) contains a chamber for accommodating toner, the front end of the box body (1) is provided with an opening, side shells (3) are provided on both sides of the box body (1), a gear set (5) is provided in the side shell (3) on one side, and a starting component (8) and a linkage component (7) are provided in the side shell (3) on the other side; A developing sleeve (2), wherein shaft heads (2a) are provided at both ends of the developing sleeve (2) and the developing sleeve (2) is installed at the opening at the front end of the box body (1) through the shaft heads (2a), the shaft heads (2a) penetrate into the side shell (3), one end of the developing sleeve (2) is connected to a gear set (5) in the side shell (3), and a scraper (4) is provided at the gap between the top end of the developing sleeve (2) and the box body (1); A sealing component (6), the sealing component (6) comprising a blocking piece (61), a rotating shaft (62) and a connecting rod (63), the blocking piece (61) being installed at the gaps between the top end of the developing sleeve (2) and the scraper (4), the bottom end of the developing sleeve (2) and the box body (1) through the rotating shaft (62) and used to block these gaps, and the connecting rod (63) being located in the side shell (3) and fixedly connected to the rotating shaft (62); A thin elastic sealing sheet (1a) is provided on the box body (1) at the gap between the bottom end of the developing sleeve (2) and the box body (1), and the blocking sheet (61) located therein abuts against the thin sealing sheet (1a) at the bottom end of the thin sealing sheet (1a); The starting assembly (8) is mounted on the shaft head (2a) and abuts against the linkage assembly (7) in the side housing (3); a transmission pin (64) is provided on the connecting rod (63) in the side housing (3); and the transmission pin (64) is connected to the linkage assembly (7).

2. The anti-leakage toner cartridge with high sealing performance according to claim 1, characterized in that: The starting assembly (8) comprises a limit cover (81), a top shaft (82) and a rotating top head (83); the top shaft (82) is installed in the side shell (3) through the limit cover (81); the inner end of the top shaft (82) is provided with a hole and is nested on the shaft head (2a); the top shaft (82) and the rotating top head (83) are nested with each other through a bearing (84); and a rubber layer is provided between the top shaft (82) and the rotating top head (83) to abut against each other.

3. The anti-leakage toner cartridge with high sealing performance according to claim 2, characterized in that: A spring (85) is provided between the rotating head (83) and the inner wall of the side shell (3) for providing the rotating head (83) with an elastic force pointing in the direction of the shaft head (2a).

4. The anti-leakage toner cartridge with high sealing performance according to claim 3, characterized in that: The outer side of the rotating head (83) is in the shape of a truncated cone, and the end with a smaller diameter abuts against the spring (85), while the end with a larger diameter points in the direction of the shaft head (2a).

5. The anti-leakage toner cartridge with high sealing performance according to claim 4, characterized in that: The shaft head (2a) is provided with a latch pin (2b), the inner wall of the hole of the top shaft (82) is provided with a guide groove (82a), the latch pin (2b) is engaged with one end of the guide groove (82a) close to the rotating top head (83), the guide groove (82a) is inclined on the inner wall, and the inclination direction of the guide groove (82a) is opposite.

6. The anti-leakage toner cartridge with high sealing performance according to claim 4, characterized in that: The linkage assembly (7) comprises a swing arm (71) and a tension piece (72); the tail of the swing arm (71) is connected to the side shell (3) via a hinge; two swing arms (71) are provided and are symmetrically distributed on the upper and lower sides of the rotating head (83); and the tension piece (72) is provided between the two swing arms (71).

7. The anti-leakage toner cartridge with high sealing performance according to claim 6, characterized in that: The middle part of the swing arm (71) is provided with an inclined block (71a), the inclined block (71a) abuts against the rotating head (83), and the head of the swing arm (71) is provided with a snap-fit ​​groove (71b), and the snap-fit ​​groove (71b) is nested with the transmission pin (64).

8. The anti-leakage toner cartridge with high sealing performance according to claim 6, characterized in that: The tensioning member (72) is one of a tension spring and an elastic rope.

9. The anti-leakage toner cartridge with high sealing performance according to claim 1, characterized in that: A bonding layer is provided on the side of the blocking piece (61) that contacts the developing sleeve (2), and the material of the bonding layer is one of rubber and cotton; The material of the thin sealing sheet (1a) is one of plastic and rubber.

10. The anti-leakage toner cartridge with high sealing performance according to claim 1, characterized in that: A rubber strip or a cotton strip for filling the gap is provided at the gap between the blocking piece (61) at the top end of the developing sleeve (2) and the scraper (4).

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