Developing device

Abstract

The utility model relates to the technical field of developing, in particular to a developing device which comprises a developing box and a supply head connected with the developing box, a developing agent is arranged in the developing box, a supply port is arranged on the supply head, and a gate for opening and closing the supply port is sleeved on the supply head. Friction resistance between the inner surface of the gate and the supply head can be reduced, operation load of opening and closing of the gate is reduced, manufacturing requirements for the machining technology are reduced, and cost is reduced.

Description

[0001] The utility model requires the priority of Chinese prior application with the application date of October 16, 2023, the application number of 202322772647.3 and the invention name of "a developing device". TECHNICAL FIELD

[0002] The utility model relates to developing technical field, especially a kind of developing device. BACKGROUND

[0003] The existing developing device includes developing shell, developing agent supply part connected with developing shell, supply port set on developing agent supply part, sealing member set on the outer peripheral part of supply port, gate for opening or closing supply port, and film member interposed between developing agent supply part provided with supply port and gate;Sealing member is set to reduce or prevent the leakage of developing agent, and the film member is used to reduce the operating load of baffle;But now the film member and sealing member in developing device are light in material, and the film member and gate, developing agent supply part are all designed in split type, when gate is opened and closed for many times, film member is easy to be rolled into a ball, and then the operating load of gate opening and closing is increased. SUMMARY

[0004] Therefore, the utility model aims at providing a kind of developing device to solve the problem of the operating load of gate opening and closing.

[0005] The utility model provides a kind of developing device, including developing box and the supply head being connected with it, the supply head is set with the gate for opening and closing the supply port on the supply port.

[0006] Further, in the case where developing device is separated from image forming device, the supply port can be closed;In the case where developing device is installed on image forming device, the supply port can be opened.

[0007] Further, the outer peripheral part of the supply port is provided with sealing element.

[0008] Further, the sealing element is sealing ring, and the material of sealing ring is water-absorbing material.

[0009] Further, annular groove located in the outer peripheral part of the supply port is set on the outer side wall of the supply head, the groove is matched with the sealing element, a plurality of first protrusions are arranged in the groove, and the end surface of the sealing element matched with the groove is provided with a plurality of first matching grooves matched with the first protrusions.

[0010] Further, film member is arranged between the supply head and the gate.

[0011] Further, the gate moves synchronously to drive the film member to move.

[0012] Further, the gate and the film member are detachably connected through a detachable member and a fixing member.

[0013] Further, an air exhaust port is arranged on the side of the developing box away from the supply port, and a filter is arranged at the air exhaust port.

[0014] Further, at least a part of the gate is made of a flexible material.

[0015] The developing device has the advantages that the gate is used for opening and closing the supply port, can not only play a sealing role, but also can reduce the frictional resistance between the inner surface of the gate and the supply head, reduce the operation load of the gate opening and closing, reduce the manufacturing requirements for the processing technology, and reduce the cost. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0017] Figure 1 It is a structural schematic view of the supply port in the closed state of the present application;

[0018] Figure 2 It is a structural schematic view of the supply port in the open state of the present application;

[0019] Figure 3 It is a local detailed structural schematic view of the supply port in the open state of the present application;

[0020] Figure 4 It is a structural schematic view of the supply head in the first embodiment of the present application;

[0021] Figure 5 It is a structural schematic view of the supply head provided with a sealing member in the second embodiment of the present application;

[0022] Figure 6 It is a structural schematic view of the supply head without a sealing member in the second embodiment of the present application;

[0023] Figure 7 It is a structural schematic view of the third embodiment of the present application.

[0024] In the figure: 1, developing box; 2, supply head; 3, supply port; 4, gate; 5, groove; 6, sealing element; 7, film component; 8, fixing element. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following combines specific embodiment, and referring to the drawings, to the utility model further detailedly.

[0026] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the utility model should be understood as the usual meaning by the person skilled in the art in the field to which the utility model belongs. The "first", "second" and similar words used in the utility model do not represent any order, quantity or importance, but are only used to distinguish different components. "Include" or "contain" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connection" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] As shown in Figures 1 to 7 A developing device, including developing box 1, supply head 2 and sealing assembly, the developing box 1 is used to install developer, supply head 2 is connected with developing box 1, the supply head 2 is provided with supply port 3 that communicates with the inside of developing box 1. The sealing assembly is used to seal supply port 3, and the sealing assembly includes gate 4, and the gate 4 is used to control the opening and closing of supply port 3.

[0028] Embodiment one

[0029] As shown in Figures 1 to 3 A developing device, including developing box 1, supply head 2 and sealing assembly, the supply head 2 is connected with developing box 1, the developing box 1 is used to install developer, the supply head 2 is provided with supply port 3 that communicates with the inside of developing box 1, and the sealing assembly includes gate 4, and the gate 4 is sleeved on supply port 3.

[0030] As shown in Figure 4 Including developing box 1 and supply head 2 connected with it, the developing box 1 is used to install developer, the supply head 2 is provided with supply port 3, and the gate 4 for opening and closing the supply port 3 is sleeved on the supply head 2.

[0031] Further, the sealing assembly further comprises a sealing member 6, the outer peripheral portion of the supply port 3 is provided with the sealing member 6 to prevent leakage of the developer, the sealing member 6 can be a sealing ring, the material of the sealing ring can be a water-absorbing material, the water-absorbing material can be selected from sponge, rubber, silica gel and the like, which is convenient for better preventing leakage of the developer, and preferably is a silica gel material, which can reduce the frictional resistance between the inner surface of the gate and the supply head, and also reduces the operation load of the gate opening and closing.

[0032] An annular groove 5 located at the outer peripheral portion of the supply port 3 is formed on the outer side wall of the supply head 2, the groove 5 is matched with the sealing member 6, the setting of the groove 5 is convenient for reducing the probability of the sealing member 6 being separated from the outer peripheral portion of the supply port 3, and further reducing the probability of the developer leaking.

[0033] A plurality of first protrusions are arranged in the groove 5, and a plurality of first matching grooves matched with the first protrusions are arranged on the end face of the sealing member 6 matched with the groove 5, so as to reduce the probability of the sealing member 6 being separated from the groove 5.

[0034] Embodiment two

[0035] As shown in Figures 1 to 3 A developing device, comprising a developing box 1, a supply head 2 and a sealing assembly, the supply head 2 is connected with the developing box 1, the developing box 1 is used for accommodating a developer, and a supply port 3 is formed on the supply head 2 and is in communication with the inside of the developing box 1.

[0036] The sealing assembly comprises a gate 4 and a film member 7, the gate 4 is sleeved on the supply port 3, the film member 7 is arranged between the supply head 2 and the gate 4, and the film member 7 is connected with the gate 4 through a fixing member 8. When the gate 4 is opened and closed for many times, the gate 4 moves synchronously to drive the film member 7 to move, so as to reduce the friction between the gate 4 and the film member 7, the film member 7 is not easy to be rolled into a ball, and the operation load of the gate 4 is reduced. In this way, the frictional resistance between the inner surface of the gate 4 and the supply head 2 is reduced during use, the manufacturing requirement of the processing technology is reduced, and the cost is reduced. In the case that the developing device is separated from the image forming device, the supply port 3 of the developer can be closed, so that the developer will not leak out. In the case that the developing device is installed on the image forming device, the supply port 3 of the developer can be opened.

[0037] In order to facilitate detachable connection between the shutter 4 and the film member 7, the shutter 4 and the film member 7 are detachably connected through detachable members and fixing members 8, the detachable members include a female clamping member and a male clamping member matched with the female clamping member, the shutter 4 and the film member 7 are provided with the male clamping member, and the fixing member 8 is provided with two female clamping members matched with the two male clamping members respectively, the detachable members can be magic tape, not limited to magic tape, and the male clamping member and the female clamping member can be the hook surface and the hair surface of the magic tape respectively; the detachable members can be replaced, and can be T-shaped grooves and T-shaped blocks matched with the T-shaped grooves, and the male clamping member and the female clamping member can be the T-shaped grooves and the T-shaped blocks respectively.

[0038] Further, as shown in Figure 5 and Figure 6 , the sealing assembly further comprises a sealing member 6, and the outer periphery of the supply port 3 is provided with the sealing member 6 to prevent leakage of the developer.

[0039] The sealing member 6 can be a sealing ring, and the material of the sealing ring can be a water-absorbing material, which can be selected from sponge, rubber, silica gel and the like, so as to better prevent leakage of the developer, preferably silica gel material, which can reduce the frictional resistance between the inner surface of the shutter and the supply head, and also reduce the operation load of the shutter.

[0040] As shown in Figure 5 and Figure 6 , an annular groove 5 located at the outer periphery of the supply port 3 is formed on the outer side wall of the supply head 2, and the groove 5 is matched with the sealing member 6, and the groove 5 is arranged to reduce the probability of the sealing member 6 separating from the outer periphery of the supply port 3, thereby reducing the probability of leakage of the developer.

[0041] A plurality of first protrusions are arranged in the groove 5, and the end surface of the sealing member 6 matched with the groove 5 is provided with a plurality of first matching grooves matched with the first protrusions, thereby reducing the probability of the sealing member 6 separating from the groove 5.

[0042] A plurality of second protrusions are arranged on the outer side wall of the film member 7, and a plurality of second matching grooves matched with the second protrusions are formed on the inner side wall of the shutter 4, so as to better match the film member 7 and the shutter 4, the film member 7 and the shutter 4 are better matched, the film member 7 is prevented from being rolled up into a bundle, and the operation load of the shutter 4 is increased.

[0043] An air exhaust port is arranged on the side of the developing box 1 away from the supply port 3, a gear set is arranged in the developing box 1, the air exhaust port can also be arranged on the side of the developing box 1 close to the gear set, and a filter is arranged at the air exhaust port, the filter is preferably sponge, the developer is prevented from being discharged together with air, the air pressure value of the developing device is kept relatively constant, and the amount of the developer in the developing box 1 is stably maintained.

[0044] Embodiment three

[0045] As Figure 7 shown, a developing device comprises a developing box 1 and a supply head 2 connected with the developing box 1, the developing box 1 is used for accommodating a developer, the supply head 2 is provided with a supply port 3, the supply head 2 is sleeved with a shutter 4 used for opening and closing the supply port 3, at least a part of the shutter 4 is made of a flexible material, and the flexible part is used for sealing the supply port 3. Preferably, the shutter 4 is made of a flexible material as a whole, and the flexible material can be selected from rubber materials such as silica gel, natural rubber, styrene-butadiene rubber, butadiene rubber, isoprene rubber, nitrile rubber, chloroprene rubber, ethylene-propylene rubber and butyl rubber. The flexible material can not only play a sealing role, but also reduce the frictional resistance between the inner surface of the shutter 4 and the supply head 2.

[0046] It should be understood by those of ordinary skill in the art that the above discussion of any embodiment is merely exemplary and is not intended to suggest that the scope of the present application is limited to these examples; under the idea of the present application, the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for the sake of simplicity.

[0047] Embodiments of the present application are intended to cover all such alternatives, modifications, and variations as fall within the broad scope of the appended claims. Accordingly, any and all such modifications, variations, and equivalents that fall within the spirit and scope of the present application are intended to be included within the scope of the present application.

Claims

1. A developing device characterized by comprising: The developing box and the supply head connected therewith are provided with a supply port, and a shutter is arranged on the supply head to open and close the supply port; The developing box is provided with an air exhaust port on the side away from the supply port, and a filter is arranged at the air exhaust port; or A gear set is arranged in the developing box, and the air exhaust port is arranged on the side of the developing box close to the gear set, and a filter is arranged at the air exhaust port.

2. The developing device according to claim 1, wherein When the developing device is separated from the image forming device, the supply port can be closed; when the developing device is installed on the image forming device, the supply port can be opened.

3. The developing device according to claim 1, wherein A sealing member is arranged on the outer periphery of the supply port.

4. The developing device according to claim 3, wherein The sealing member is a sealing ring made of water-absorbing material.

5. The developing device according to claim 3, wherein An annular groove is arranged on the outer side wall of the supply head and located on the outer periphery of the supply port, and the groove is arranged in cooperation with the sealing member, a plurality of first protrusions are arranged in the groove, and a plurality of first matching grooves arranged in cooperation with the first protrusions are arranged on the end surface of the sealing member matched with the groove.

6. The developing device according to claim 1, wherein A film member is arranged between the supply head and the shutter.

7. The developing device according to claim 6, wherein The shutter moves synchronously to drive the film member to move.

8. The developing device according to claim 6, wherein The shutter and the film member are detachably connected through a detachable member and a fixing member.

9. The developing device according to claim 1, wherein At least a part of the shutter is made of flexible material.

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