A toner cartridge for a laser printer

Abstract

The application is suitable for the field of laser printing technology, and provides a selenium drum quantitative powder control device for a laser printer, which comprises a powder loading tank, a sealing plate installed on the top of the powder loading tank through a clamping assembly, a powder leakage plate arranged in the powder loading tank, a first adjusting rod box arranged at the first side edge of the bottom of the powder loading tank, a first transmission rod arranged in the first adjusting rod box and provided with a first threaded rod, a first moving block provided with a threaded hole matched with the first threaded rod and arranged on the first threaded rod through the threaded hole, a control handle with one end penetrating through the side wall of the first adjusting rod box and connected with one end of the first transmission rod, and a baffle arranged at the bottom of the powder loading tank and connected with the first moving block at one side edge. The baffle reciprocates to change the area of the powder leakage plate, so that the carbon powder is quantitatively output, and the waste of the carbon powder is avoided. The sealing plate is installed on the powder loading tank or separated from the powder loading tank through the clamping assembly, so that the carbon powder is conveniently added.

Description

Technical Field

[0001] This application relates to the field of laser printing technology, and in particular to a quantitative toner control device for a laser printer drum. Background Technology

[0002] Laser printers evolved from laser typesetting technology of the late 1980s and became popular in the mid-1990s. They are printing output devices that combine laser scanning technology and electrophotographic technology. Their basic working principle involves binary data information from a computer being converted into a video signal by a video controller. This video signal is then converted into a laser drive signal by a video interface / control system. The laser scanning system then generates a laser beam carrying character information, and finally, the electrophotographic system images and transfers the laser beam onto paper. During laser printing, toner is used for coloring.

[0003] An existing patent (publication number: CN214252899U) discloses a quantitative toner control device for laser printer drums, including a drum body, a toner hopper, and a disassembly assembly. The lower surface of the drum body has a through groove connected to it. A drum core is rotatably connected to the inner wall of the through groove. A scraper is fixedly installed on the inner wall of the through groove, and the outer surface of the scraper is in contact with the outer surface of the drum core. A first sliding groove is formed inside the drum body, and two sets of second sliding grooves are formed on the upper surface of the inner wall of the drum body. However, this device still suffers from the problem that users cannot easily control the quantitative output of toner, resulting in high toner consumption during laser printing and significant toner waste. Furthermore, the tight seal between the toner hopper and the sealing plate makes it difficult for users to open the toner hopper and refill toner in a timely manner. Summary of the Invention

[0004] This application provides a quantitative toner control device for laser printer drums, which can solve the problems of toner waste and inconvenience in adding toner.

[0005] This application provides a quantitative toner control device for a laser printer drum, comprising:

[0006] The powder filling tank has locking components on both opposite sides;

[0007] The sealing plate is installed on the top of the powder tank via a snap-fit ​​assembly.

[0008] A powder-straining plate is located in the middle of the powder tank. The powder-straining plate, the powder tank, and the sealing plate together form a cavity for containing toner.

[0009] The first adjusting rod box is located on the first side of the bottom end of the powder tank;

[0010] A first transmission rod is disposed inside the first adjusting rod box and can rotate inside the first adjusting rod box, and a first threaded rod is sleeved on the outer surface of the middle part of the first transmission rod;

[0011] The first movable block has a first threaded hole inside. The first movable block is mounted on the first threaded rod through the first threaded hole, and the first movable block can move along the length of the first threaded rod.

[0012] A control handle, one end of which passes through the side wall of the first adjusting rod box and is connected to one end of the first transmission rod;

[0013] A baffle is installed at the bottom of the powder tank. The top surface of the baffle is in contact with the bottom surface of the powder-leaking plate. One side of the baffle is connected to the first moving block, and the baffle can slide along the length of the first side.

[0014] Optionally, a first groove is provided on the outer surface of the side wall of the first adjusting rod box along the length direction of the first adjusting rod box;

[0015] The toner cartridge quantitative control device for laser printers also includes: a first limiting block connected to a first moving block, with one end of the first limiting block away from the first moving block located in a first sliding groove.

[0016] Optionally, the toner cartridge metering control device for laser printers also includes:

[0017] The second adjusting rod box is located on the second side of the bottom of the powder tank;

[0018] The second transmission rod is disposed inside the second adjustment rod box and can rotate inside the second adjustment rod box. Two second threaded rods are sleeved on the outer surface of the middle part of the second transmission rod.

[0019] The second movable block has a second threaded hole inside. The second movable block is set on the second threaded rod through the second threaded hole, and the second movable block can move along the length of the second threaded rod.

[0020] A second sliding groove is provided on the outer surface of the side wall of the second adjusting rod box along the length direction of the second adjusting rod box;

[0021] A second limiting block connected to the second moving block, with one end of the second limiting block away from the second moving block located within the second sliding groove;

[0022] The two opposite sides of the baffle are connected to the first moving block and the second moving block respectively, and the first side and the second side are the two opposite sides of the bottom of the powder tank.

[0023] Optionally, the toner cartridge metering control device for laser printers also includes:

[0024] A transmission belt, one end of which is fitted onto the end of the first transmission rod furthest from the control handle, and the other end of which is fitted onto the second transmission rod.

[0025] Optionally, a bearing is provided at the connection between the control handle and the first adjusting rod box.

[0026] Optional, the card-connecting components include:

[0027] A receiving box installed on the outer surface of the powder container;

[0028] A fixing plate is installed on the outer wall of the accommodating box;

[0029] A compression spring is located between the fixed plate and the receiving box. One end of the compression spring is connected to the end of the fixed plate away from the receiving box, and the other end of the compression spring is connected to the middle of the pull rod.

[0030] The locking plate on the bottom of the sealing plate is inserted into the receiving box;

[0031] The pull rod has one end that passes through the side wall of the fixing plate and the receiving box in sequence, and then engages with the locking plate.

[0032] Optionally, the locking plate is provided with a slot, and one end of the pull rod is provided with a locking block. The pull rod is engaged with the locking plate through the cooperation of the locking block and the slot.

[0033] Optionally, the engaging assembly also includes a pull plate, which is located at the other end of the pull rod.

[0034] The above-mentioned solution in this application has the following beneficial effects:

[0035] In this application, when using the aforementioned laser printer toner cartridge quantitative control device, rotating the control handle drives the first transmission rod to rotate, which in turn drives the first threaded rod to rotate. This causes the first moving block to move along the first threaded rod, thereby moving the baffle. This changes the area of ​​the baffle covering the toner leakage plate, thus changing the number of holes through which the toner leakage plate can pass, adjusting the toner dispensing speed of the toner canister and achieving quantitative toner output. When toner needs to be added, the sealing plate can be installed on or separated from the toner canister using the locking assembly, facilitating the addition of toner. This application achieves quantitative toner output by causing the baffle to reciprocate, changing the area covering the toner leakage plate, thus avoiding toner waste; and by using the locking assembly to install or separate the sealing plate from the toner canister, it facilitates toner addition.

[0036] Other beneficial effects of this application will be described in detail in the following detailed description section. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 A schematic diagram of the quantitative toner control device for laser printer drum provided in this application;

[0039] Figure 2 A schematic diagram of the internal structure of the quantitative toner control device for laser printers provided in this application;

[0040] Figure 3 Provided for this application Figure 2 Enlarged structural diagram at point A in the diagram;

[0041] Figure 4 A partial structural diagram of the quantitative toner control device for laser printers provided in this application. Figure 1 ;

[0042] Figure 5 A partial structural diagram of the quantitative toner control device for laser printers provided in this application. Figure 2 .

[0043] [Explanation of Labels in the Attached Image]

[0044] 1. Powder container; 201. First adjusting rod box; 202. Control handle; 203. Powder leakage plate; 204. First limiting block; 205. Baffle; 206. First moving block; 207. First threaded rod; 208. First transmission rod; 209. Transmission belt; 210. First slide groove; 211. Second adjusting rod box; 214. Second limiting block; 216. Second moving block; 217. Second threaded rod; 218. Second transmission rod; 3. Engaging assembly; 300. Receiving box; 301. Pull plate; 302. Fixing plate; 303. Engaging plate; 304. Locking block; 305. Pull rod; 306. Compression spring; 4. Sealing plate. Detailed Implementation

[0045] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0046] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0047] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0048] As used in this application specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if detected [the described condition or event]" may be interpreted, depending on the context, as meaning "once determined," "in response to determination," "once detected [the described condition or event]," or "in response to detection [the described condition or event]."

[0049] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0050] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0051] Currently, existing technologies still have the problem that users cannot control the quantitative output of toner, resulting in high toner consumption during laser printing and significant toner waste. Furthermore, the tight seal between the toner container and the sealing plate makes it difficult for users to open the container and add toner in a timely manner.

[0052] To address the aforementioned problems, this application provides a quantitative toner control device for laser printer drums. When using this device, rotating the control handle rotates the first transmission rod, which in turn rotates the first threaded rod. This causes the first moving block to move along the first threaded rod, thereby moving the baffle. This changes the area of ​​the baffle covering the toner leakage plate, thus altering the number of holes through which the toner leakage plate can pass, adjusting the toner dispensing speed of the toner canister and achieving quantitative toner output. When toner needs to be added, the sealing plate can be installed on or separated from the toner canister using a locking assembly, facilitating toner addition. This application achieves quantitative toner output by causing the baffle to reciprocate, changing the area covering the toner leakage plate, thus avoiding toner waste. The locking assembly facilitates toner addition by allowing the sealing plate to be installed on or separated from the toner canister.

[0053] The following is an exemplary description of a quantitative toner control device for a laser printer drum provided in this application.

[0054] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the above-mentioned laser printer toner cartridge quantitative control device includes: a toner tank 1, with locking components 3 on both opposite sides of the toner tank 1; a sealing plate 4, which is installed on the top of the toner tank 1 via the locking components 3; a toner leakage plate 203, which is disposed in the middle of the toner tank 1, and the toner leakage plate 203, the toner tank 1, and the sealing plate 4 together form a cavity for containing toner; a first adjusting rod box 201, which is disposed on the first side of the bottom end of the toner tank 1; and a first transmission rod 208 disposed in the first adjusting rod box 201 and rotatable within the first adjusting rod box 201, with a first transmission rod 208 sleeved on the outer surface of the middle part of the first transmission rod 208. A threaded rod 207; a first movable block 206, which has a first threaded hole and is mounted on the first threaded rod 207 through the first threaded hole, and can move along the length of the first threaded rod 207; a control handle 202, one end of which passes through the side wall of the first adjusting rod box 201 and is connected to one end of the first transmission rod 208; a baffle 205 located at the bottom of the powder tank 1, the top surface of the baffle 205 being in contact with the bottom surface of the powder leakage plate 203, one side of the baffle 205 being connected to the first movable block 206, and the baffle 205 being able to slide along the length of the first side.

[0055] It should be noted that the powder-straining plate 203 is covered with multiple holes for powder leakage.

[0056] The aforementioned toner can 1 is used in conjunction with the toner-leaking plate 203 and the sealing plate 4 to form a receiving cavity for holding toner. The aforementioned locking assembly 3 is used to conveniently install or remove the sealing plate 4 from the toner can 1. The aforementioned toner-leaking plate 203 is used to allow the toner in the receiving cavity to leak out through the holes in the toner-leaking plate 203 itself. The aforementioned first adjusting rod box 201 is used to house the first transmission rod 208, the first threaded rod 207, and the first moving block 206. The aforementioned control handle 202 is used to drive the aforementioned first transmission rod 208 to rotate. The rotation of the first threaded rod 207 is caused by the rotation of the first threaded rod 207. The first moving block 206 is installed on the first threaded rod 207 through the first threaded hole and is connected to the baffle 205. At this time, the first moving block 206 will move along the length of the first threaded rod 207 due to the rotation of the first threaded rod 207, thereby causing the baffle 205 to move. This causes the area of ​​the baffle 205 and the powder-leaking plate 203 to change, thereby changing the number of holes that the powder-leaking plate 203 can pass through, so as to adjust the powder discharge speed of the powder tank 1.

[0057] When using the aforementioned laser printer toner cartridge quantitative control device, rotating the control handle 202 drives the first transmission rod 208 to rotate, which in turn drives the first threaded rod 207 to rotate. This causes the first moving block 206 to move along the first threaded rod 207, thereby moving the baffle 205. This changes the area of ​​the baffle 205 covering the toner leakage plate 203, thus changing the number of holes through which the toner leakage plate 203 can pass, thereby adjusting the toner dispensing speed of the toner canister 1 and quantitatively dispensing toner. When toner needs to be added, the sealing plate 4 can be installed on or separated from the toner canister 1 by the locking assembly 3, facilitating the addition of toner to the toner canister 1. This application achieves quantitative toner dispensing by changing the area of ​​the baffle 205 covering the toner leakage plate 203 through reciprocating motion, avoiding toner waste; the locking assembly 3 facilitates the addition of toner by installing or separating the sealing plate 4 from the toner canister 1.

[0058] In some embodiments of this application, such as Figure 2 and Figure 4 As shown, a first groove 210 is provided on the outer surface of the side wall of the first adjusting rod box 201 along the length direction of the first adjusting rod box 201; the toner cartridge quantitative control device for laser printers also includes: a first limiting block 204 connected to the first moving block 206, with one end of the first limiting block 204 away from the first moving block 206 located in the first groove 210.

[0059] The first slide groove 210 is used for sliding the first limiting block 204. The first limiting block 204 is used to prevent the first transmission rod 208, the first threaded rod 207 and the first moving block 206 from moving randomly in the first adjusting rod box 201.

[0060] In some embodiments of this application, such as Figure 2 , Figure 4 and Figure 5 As shown, the toner cartridge quantitative control device for laser printers further includes: a second adjusting rod box 211 disposed on the second side of the bottom of the toner tank 1; a second transmission rod 218 disposed within the second adjusting rod box 211 and rotatable within the second adjusting rod box 211, with two second threaded rods 217 sleeved on the outer surface of the middle part of the second transmission rod 218; and a second moving block 216, with a second threaded hole in the second moving block 216, the second moving block 216 being disposed on the second threaded rods 217 through the second threaded hole, and the second moving block 216... It can move along the length of the second threaded rod 217; the outer surface of the side wall of the second adjusting rod box 211 is provided with a second sliding groove along the length of the second adjusting rod box 211; the second limiting block 214 is connected to the second moving block 216, and one end of the second limiting block 214 away from the second moving block 216 is located in the second sliding groove; wherein, the two opposite sides of the baffle 205 are respectively connected to the first moving block 206 and the second moving block 216, and the first side and the second side are the two opposite sides of the bottom end of the powder tank 1.

[0061] The second adjusting rod box 211, the second transmission rod 218, the second threaded rod 217, the second moving block 216, the second limiting block 214, and the second slide groove are all provided corresponding to the first adjusting rod box 201, the first transmission rod 208, the first threaded rod 207, the first moving block 206, the first limiting block 204, and the first slide groove 210, so as to make the baffle 205 move more smoothly and steadily along the length direction of the first side.

[0062] In some embodiments of this application, such as Figure 5 As shown, the toner cartridge quantitative control device for laser printers also includes: a transmission belt 209, one end of which is sleeved on the end of the first transmission rod 208 away from the control handle 202, and the other end of which is sleeved on the second transmission rod 218.

[0063] The aforementioned transmission belt 209 is used to transmit power to the second transmission rod 218 when the first transmission rod 208 rotates, causing the second threaded rod 217 on the second transmission rod 218 to rotate, causing the second moving block 206 to move along the second threaded rod 207. Since the second moving block 216 is connected to the baffle 205, the second moving block 216 and the first moving block 206 will jointly drive the baffle 205 to move along the length direction of the first side and the second side, making the movement of the baffle 205 more stable and smooth, and reducing the possible jamming phenomenon that may occur when the first moving block 206 drives the baffle 205, thereby causing the baffle 205 to drive the second moving block 216 to move.

[0064] In some embodiments of this application, a bearing (not shown in the figure) is provided at the connection between the control handle 202 and the first adjusting rod box 201.

[0065] The aforementioned bearing is used to make the rotation of the control handle 202 smoother and prevent jamming.

[0066] In some embodiments of this application, such as Figure 2 and Figure 3 As shown, the locking assembly 3 includes: a receiving box 300 disposed on the outer surface of the powder tank 1; a fixing plate 302 disposed on the outer side wall of the receiving box 300; a compression spring 306 located between the fixing plate 302 and the receiving box 300, one end of the compression spring 306 being connected to the end of the fixing plate 302 away from the receiving box 300, and the other end of the compression spring 306 being connected to the middle of the pull rod 305; a locking plate 303 on the bottom surface of the sealing plate 4 inserted into the receiving box 300; and a pull rod 305, one end of which passes through the fixing plate 302 and the side wall of the receiving box 300 in sequence and then engages with the locking plate 303.

[0067] It should be noted that the compression spring 306 is in a compressed state when it is connected to the middle of the fixed plate 302 and the pull rod 305.

[0068] The aforementioned receiving box 300 is used for inserting the locking plate 303 so that one end of the pull rod 305, which passes through the fixing plate and the receiving box 300, can be engaged with the locking plate 303. By pulling the pull rod 305, one end of the pull rod 305 can be separated from the locking plate 303, thereby separating the sealing plate 4 from the powder tank 1. The aforementioned compression spring 306 is used to give the pull rod 305 a tendency to move closer to the receiving box 300, so that the locking block 304 is more secure when engaged with the locking plate 303. When the sealing plate 4 needs to be installed on the powder tank 1, it is not necessary to push the pull rod 305 to insert into the locking plate 303 again. The compression spring 306 will push the pull rod 305 so that one end of the pull rod 305 is inserted into the locking plate 303, thus saving manpower.

[0069] In some embodiments of this application, such as Figure 2 and Figure 3 As shown, the locking plate 303 is provided with a slot, and one end of the pull rod 305 is provided with a locking block 304. The pull rod 305 is engaged with the locking plate 303 through the cooperation of the locking block 304 and the slot.

[0070] The aforementioned locking block 304 is used to better engage the pull rod 305 onto the locking plate 303, and a limiting plate (not shown in the figure) can be provided at the connection between the locking block 304 and the pull rod 305 to prevent the pull rod 305 from being pulled too far.

[0071] In some embodiments of this application, such as Figure 2 and Figure 3As shown, there can be two card box assemblies 3, which are respectively set on two opposite sides of the powder tank 1. Each card box assembly 3 can have three pull rods and three corresponding card blocks.

[0072] In some embodiments of this application, such as Figure 2 and Figure 3 As shown, the engaging assembly 3 also includes a pull plate 301, which is disposed at the other end of the pull rod 305.

[0073] The aforementioned pull plate 305 is used for more convenient push / pull of the pull rod 305.

[0074] In some embodiments of this application, such as Figure 2 and Figure 3 As shown, each of the above-mentioned pull rods 305 has two compression springs 306 connected to its middle part. The two compression springs 306 are located on both sides of the pull rod 305. Correspondingly, each engaging assembly 3 has six compression springs 306.

[0075] The number of compression springs 306 is set to give the pull rod 305 a more stable tendency to move towards the receiving box 300, prevent individual compression springs 306 from failing, and make the force on the pull rod 305 more balanced.

[0076] When using the aforementioned laser printer toner cartridge quantitative control device, rotating the control handle 202 drives the first transmission rod 208 to rotate, which in turn drives the first threaded rod 207 to rotate. This causes the first moving block 206 to move along the first threaded rod 207. During this process, the rotation of the first transmission rod 208 drives the transmission belt 209 to rotate, which in turn drives the second transmission rod 218 to rotate, which in turn drives the second threaded rod 217 to rotate. This causes the second moving block 216 to move along the second threaded rod 217, thereby driving the baffle 205 to move. During this process, the first limiting block 204 and the second limiting block 214 ensure that the baffle 205 slides along the length of the first and second sides, so that the area of ​​the baffle 205 blocking the toner leakage plate 203 changes. This changes the number of holes through which the toner leakage plate 203 can pass, thereby adjusting the toner dispensing speed of the toner canister 1. Toner is dispensed in a quantitative manner. When toner needs to be added, the pull plate 301 is pulled to drive the pull rod 306 to overcome the force applied by the compression spring 306, separating the locking block 304 from the locking plate 303. At this time, the sealing plate 4 can be separated from the toner tank 1, making it easier to add toner into the toner tank 1. When the sealing plate 4 needs to be installed on the toner tank 1, the pull plate 301 is pulled to drive the pull rod 306 to overcome the force applied by the compression spring 306, pulling the locking block 304 to a position where the locking plate 303 can be inserted into the receiving box 300. The locking plate 303 on the sealing plate 4 is inserted into the receiving box 300. The pull plate 301 is released, and the pull rod 305 will move towards the receiving box 300 due to the force of the compression spring 306, thereby locking the locking block 304 and the locking plate 303, thus securely installing the sealing plate 4 on the toner tank 1. This application uses the reciprocating motion of the baffle 205 to change the area of ​​the toner-leaking plate 203, thereby quantitatively discharging toner and avoiding toner waste; the sealing plate 4 is installed on or separated from the toner tank 1 by the locking assembly 3 to facilitate the addition of toner.

[0077] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0078] The above description is the preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principles described in this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A quantitative toner control device for a laser printer drum, comprising a toner container (1), characterized in that, The toner cartridge (1) is provided with locking components (3) on both opposite sides, and the laser printer toner cartridge quantitative control device further includes: A sealing plate (4) is installed on the top of the powder tank (1) by means of the engaging assembly (3); A powder-straining plate (203) is disposed in the middle of the powder-filling tank (1). The powder-straining plate (203), the powder-filling tank (1), and the sealing plate (4) together form a cavity for containing toner. The first adjusting rod box (201) is disposed on the first side of the bottom end of the powder tank (1); A first transmission rod (208) is disposed inside the first adjustment rod box (201) and can rotate inside the first adjustment rod box (201). A first threaded rod (207) is sleeved on the outer surface of the middle part of the first transmission rod (208). The first movable block (206) has a first threaded hole, and the first movable block (206) is disposed on the first threaded rod (207) through the first threaded hole. The first movable block (206) can move along the length direction of the first threaded rod (207) on the first threaded rod (207). A control handle (202), one end of which passes through the side wall of the first adjusting rod box (201) and is connected to one end of the first transmission rod (208); A baffle (205) is provided at the bottom of the powder tank (1). The top surface of the baffle (205) is in contact with the bottom surface of the powder leakage plate (203). One side of the baffle (205) is connected to the first moving block (206), and the baffle (205) can slide along the length direction of the first side. The engaging component (3) includes: A container (300) is disposed on the outer surface of the powder container (1); A fixing plate (302) is disposed on the outer side wall of the accommodating box (300); A compression spring (306) is located between the fixing plate (302) and the receiving box (300). One end of the compression spring (306) is connected to the end of the fixing plate (302) away from the receiving box (300), and the other end of the compression spring (306) is connected to the middle of the pull rod (305). The locking plate (303) on the bottom surface of the sealing plate (4) is inserted into the receiving box (300); One end of the pull rod (305) passes through the side wall of the fixing plate (302) and the accommodating box (300) in sequence, and then engages with the locking plate (303).

2. The quantitative toner control device for laser printer drums according to claim 1, characterized in that, A first groove (210) is provided on the outer surface of the side wall of the first adjusting rod box (201) along the length direction of the first adjusting rod box (201); The laser printer toner cartridge quantitative control device further includes: a first limiting block (204) connected to the first moving block (206), wherein one end of the first limiting block (204) away from the first moving block (206) is located in the first slide groove (210).

3. The quantitative toner control device for laser printer drums according to claim 2, characterized in that, The quantitative toner control device for laser printer drums also includes: The second adjusting rod box (211) is located on the second side of the bottom end of the powder tank (1). The second transmission rod (218) is disposed inside the second adjustment rod box (211) and can rotate inside the second adjustment rod box (211). The outer surface of the middle part of the second transmission rod (218) is fitted with a second threaded rod (217). The second movable block (216) has a second threaded hole inside. The second movable block (216) is mounted on the second threaded rod (217) through the second threaded hole, and the second movable block (216) can move along the length direction of the second threaded rod (217) on the second threaded rod (217). A second sliding groove is provided on the outer surface of the side wall of the second adjusting rod box (211) along the length direction of the second adjusting rod box (211); A second limiting block (214) is connected to the second moving block (216), and one end of the second limiting block (214) away from the second moving block (216) is located in the second groove; The two opposite sides of the baffle (205) are connected to the first moving block (206) and the second moving block (216) respectively. The first side and the second side are the two opposite sides of the bottom of the powder tank (1).

4. The quantitative toner control device for laser printer drums according to claim 3, characterized in that, The quantitative toner control device for laser printer drums also includes: A transmission belt (209) is provided, one end of which is sleeved on the end of the first transmission rod (208) away from the control handle (202), and the other end of which is sleeved on the second transmission rod (218).

5. The quantitative toner control device for laser printer drums according to claim 1, characterized in that, A bearing is provided at the connection between the control handle (202) and the first adjusting rod box (201).

6. The quantitative toner control device for laser printer drums according to claim 1, characterized in that, The locking plate (303) is provided with a slot, and one end of the pull rod (305) is provided with a locking block (304). The pull rod (305) is engaged with the locking plate (303) through the cooperation of the locking block (304) and the slot.

7. The quantitative toner control device for laser printer drums according to claim 6, characterized in that, The engaging assembly (3) also includes a pull plate (301), which is disposed at the other end of the pull rod (305).

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