Paper ejection mechanism and paper towel dispenser

Abstract

The application discloses a paper outlet mechanism and a paper towel dispenser, which comprise a shell, paper outlet wheels and a driving assembly. The shell is provided with a paper outlet. The paper outlet wheels are arranged in a ring around the central axis of the paper outlet. A paper outlet channel is formed between the outer circumferences of the paper outlet wheels, through which the paper towel passes and is opposite to the paper outlet. The tangential direction of the outer circumference of each paper outlet wheel close to the central axis of the paper outlet is the same as the extension direction of the paper outlet channel. The driving assembly is used for driving at least one of the paper outlet wheels to rotate. In use, the paper towel passes through the paper outlet channel formed by the paper outlet wheels while passing through the paper outlet. The outer circumferences of the paper outlet wheels are in contact with the paper towel. When the paper is being taken out, the paper outlet wheels are driven to rotate by the driving assembly, so as to drive the paper towel to move along the paper outlet channel, thereby realizing automatic output from the paper outlet. Furthermore, the number of rotations of the paper outlet wheels driven by the driving assembly can be adjusted according to the paper outlet length of the required paper towel, so as to solve the problems of easy paper breakage and paper towel blockage caused by manual paper taking.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of paper towel dispensers, in particular to a paper outlet mechanism and a paper towel dispenser. BACKGROUND

[0002] A paper towel dispenser is a device for holding a paper roll, which is suitable for use in kitchens, bathrooms and other places. In order to facilitate use and save space, some wall-mounted retractable paper towel dispensers appear on the market. The paper outlet (110) of the retractable paper towel dispenser is arranged on the front side to realize the effect of retracting the paper towel forward. However, the existing retractable paper towel dispensers on the market all use a manual paper pulling method. In actual use, the manually pulled paper is easy to be broken, resulting in paper jamming, and the length of the pulled paper is difficult to control. SUMMARY

[0003] The present application aims to provide a paper outlet mechanism and a paper towel dispenser to solve one or more technical problems existing in the prior art, at least to provide a beneficial choice or create conditions.

[0004] To solve the above technical problems, the technical scheme adopted by the present application is as follows:

[0005] Firstly, the present application provides a paper outlet mechanism suitable for a paper towel dispenser, which comprises a housing, a plurality of paper outlet wheels and a driving assembly. The housing is provided with a paper outlet. The plurality of paper outlet wheels are arranged in a ring around the central axis of the paper outlet. A paper outlet passage is formed between the outer peripheries of the plurality of paper outlet wheels for the paper towel to pass through and be opposite to the paper outlet. The tangential direction of the outer periphery of each paper outlet wheel close to the central axis of the paper outlet is the same as the extension direction of the paper outlet passage. The driving assembly is used to drive at least one of the plurality of paper outlet wheels to rotate.

[0006] The beneficial effect of the present paper outlet mechanism is that when in use, the paper towel passes through the paper outlet while passing through the paper outlet passage formed by the plurality of paper outlet wheels. The outer periphery of the plurality of paper outlet wheels is in contact with the paper towel. At this time, the paper towel is clamped in the paper outlet passage formed between the plurality of paper outlet wheels. When the paper is output, the driving assembly is used to drive the paper outlet wheel to rotate to drive the paper towel to move along the paper outlet passage, so as to automatically output from the paper outlet. Furthermore, the driving assembly can be adjusted according to the required paper outlet length to solve the problems of broken paper and paper jamming caused by manual paper pulling.

[0007] As a further improvement of the above technical scheme, the outer peripheral wall of each paper outlet wheel is provided with an annular mounting groove. A friction sleeve is sleeved in the mounting groove. The friction sleeve is partially located outside the mounting groove. Each paper outlet wheel is in contact with the paper towel through the friction sleeve.

[0008] The paper wheel in the scheme is in friction with the paper towel through a friction sleeve to increase the friction force and avoid the phenomenon of slipping between the paper towel and the paper wheel. The installation slot is used for limiting the installation of the friction sleeve. The general friction sleeve is a soft member. At this time, the plurality of paper wheels can provide a pre-pressure to the paper towel through the friction sleeve. The friction coefficient of the contact surface is increased, and the force applied to the paper towel is also increased, thereby further increasing the friction force.

[0009] As a further improvement of the above technical scheme, an elastic paper pressing structure is arranged to act on at least one of the paper wheels to make the at least one paper wheel have a tendency to move and reset towards the center of the paper outlet channel.

[0010] The elastic paper pressing structure is arranged to provide a reset elastic force to at least one of the paper wheels. When the paper towel passes through the installation, the corresponding paper wheel is moved outward to expand the paper outlet channel between the plurality of paper wheels to facilitate the passing of the paper towel. After the paper towel passes through, the corresponding paper wheel is reset under the action of the elastic paper pressing structure, the paper towel is kept in a compressed state, and a buffer displacement amount can be provided to meet the use of paper towels of different sizes.

[0011] As a further improvement of the above technical scheme, the elastic paper pressing structure includes a moving seat for installing one of the paper wheels, and an elastic member acting between the housing and the moving seat, the elastic member being used to provide a reset elastic force to the moving seat towards the center of the paper outlet channel.

[0012] The elastic member acts on the moving seat to reset the paper wheel on the moving seat. The scheme sets an adjustable paper wheel, and the other paper wheels can be fixedly installed, which is more stable in structural strength, reduces the design difficulty, and makes the structure simpler.

[0013] As a further improvement of the above technical scheme, the housing is provided with a movable slot in sliding cooperation with the moving seat. The moving seat includes a cross arm and two connecting arms connected to the two ends of the cross arm, respectively. The paper wheel is coaxially connected with a rotating shaft, the two ends of the rotating shaft are connected with the two connecting arms, respectively. The elastic member is a spring. The housing is provided with a connecting column connected with one end of the spring. The other end of the spring is connected to the middle of the side of the cross arm away from the paper wheel.

[0014] As a further improvement of the above technical scheme, a transmission structure is connected between two adjacent paper wheels, and the transmission structure is used to make the two adjacent paper wheels rotate in the same direction.

[0015] The transmission structure can realize the synchronous and same-direction rotation of the plurality of paper wheels, the paper outlet is faster and more efficient, and the risk of paper breakage is further reduced.

[0016] As a further improvement of the above technical solution, the transmission structure comprises two cone gears meshing with each other, and the two cone gears are connected to the adjacent two paper outlet wheels respectively.

[0017] The transmission structure in the present solution realizes the synchronous rotation of the two paper outlet wheels through the two cone gears meshing with each other, and also makes each paper outlet wheel rotate in one direction.

[0018] As a further improvement of the above technical solution, the driving assembly comprises a motor and a gear transmission set, and the motor is connected to one of the paper outlet wheels through the gear transmission set.

[0019] The driving assembly in the present solution only drives one of the paper outlet wheels to rotate, and realizes the speed reduction of the motor driving through the gear transmission set to drive one of the paper outlet wheels to rotate, and the driving mode is simpler.

[0020] As a further improvement of the above technical solution, the paper outlet wheels and the driving assembly are both mounted on the shell, and the shell is provided with a battery assembly connected to the driving assembly.

[0021] The paper outlet wheels and the driving assembly in the present solution are both arranged on the shell, and the modular assembly can be realized, and the shell can be detachably mounted in the paper towel dispenser.

[0022] In addition, the present application also provides a paper towel dispenser, which comprises the paper outlet mechanism and the shell, and the front side of the shell is provided with a front cover which can be opened and closed, the paper outlet mechanism is arranged on the front cover, and the paper outlet is through the inner side and the outer side of the shell.

[0023] The present application has the advantages of simple operation, and the paper towel is not easy to be pulled off and block the machine. BRIEF DESCRIPTION OF DRAWINGS

[0024] The present application will be further described below in combination with the drawings and embodiments;

[0025] Fig. 1 is a structural schematic diagram of an embodiment of the paper towel dispenser provided by the present application;

[0026] Fig. 2 is an exploded view of an embodiment of the paper towel dispenser provided by the present application;

[0027] Fig. 3 is a schematic diagram of the internal structure of an embodiment of the paper outlet mechanism provided by the present application;

[0028] Fig. 4 is a schematic diagram of the back structure of an embodiment of the paper outlet mechanism provided by the present application. DETAILED DESCRIPTION

[0029] The specific embodiments of the present application will be described in detail in this part, the preferred embodiments of the present application are shown in the drawings, the role of the drawings is to supplement the description of the text part of the description with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as a limitation on the protection scope of the present application.

[0030] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right and the like, is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0031] In the description of the present application, if the word "several" or the like is described, it means one or more, the meaning of more than two, greater than, less than, more than, etc. is not included in the number, and the above, below, within, etc. is understood to include the number.

[0032] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting and the like should be understood broadly, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0033] Referring to Figs. 1-4 The paper outlet mechanism of the present application is as follows:

[0034] The paper towel dispenser of the present embodiment comprises a housing 100, a paper outlet wheel 300 and a driving assembly 500.

[0035] The housing 100 is provided with a paper outlet 110, and the paper outlet wheel 300 is provided with a plurality of paper outlet wheels 300, the number of the paper outlet wheel 300 in the present embodiment is three, and in other embodiments, more than three paper outlet wheels 300 can be provided, and in the present embodiment, three paper outlet wheels 300 are more reasonable in distribution, which meets the paper outlet and makes the design more simple and reasonable.

[0036] The three paper outlet wheels 300 are arranged in a ring around the central axis of the paper outlet 110, so that a paper outlet passage for the paper towel to pass through is formed between the outer peripheries of the three paper outlet wheels 300, and the paper outlet passage is opposite to the paper outlet 110, wherein the paper outlet 110 is arranged at the outer end side of the paper outlet passage, and the three paper outlet wheels 300 are arranged inside the paper outlet 110, which has the effect of hidden installation.

[0037] And tangential direction of each of the paper outlet wheel 300 outer periphery close to the central axis of the paper outlet 110 and the extension direction of the paper outlet channel are in the same direction, that is, each paper outlet wheel 300 is in contact with the paper towel through the outer periphery, wherein for the paper outlet channel, each of the paper outlet wheel 300 outer periphery can be in contact with the paper towel in a natural state, and the drive assembly 500 is used to drive at least one of the three paper outlet wheels 300 to rotate.

[0038] Among them, the drive assembly 500 can be in transmission connection with one of the paper outlet wheels 300, which is a driving wheel, and the other paper outlet wheels 300 are driven wheels, which are rotatably installed on the housing 100. When each of the paper outlet wheels 300 is in contact with the paper towel, the driven wheels can rotate following the driving wheel, and the other driven wheels can realize the guiding and limiting effect.

[0039] In other embodiments, the drive assembly 500 can simultaneously drive all the paper outlet wheels 300 to rotate synchronously, and all the paper outlet wheels 300 rotate in the direction of the paper outlet to synchronously drive the paper towel to forward.

[0040] The transmission structure 600 is arranged between the adjacent two paper outlet wheels 300 of the embodiment, and the adjacent two paper outlet wheels 300 are linked through the transmission structure 600. The transmission structure 600 is used to make the adjacent two paper outlet wheels 300 rotate in the same direction, and the transmission structure 600 can realize the synchronous rotation of multiple paper outlet wheels 300, which makes the paper outlet more quickly and efficiently, and further reduces the risk of paper breakage.

[0041] The transmission structure 600 of the embodiment includes two conical gears 610 that are engaged with each other. The two conical gears 610 are connected to the adjacent two paper outlet wheels 300, respectively. The conical gear 610 is fixedly connected with the corresponding paper outlet wheel 300 in the same axis, and the paper outlet wheel 300 of the embodiment is connected with the rotating shaft 320 in the same axis. The conical gear 610 is sleeved on the rotating shaft 320.

[0042] The transmission structure 600 of the embodiment realizes the synchronous rotation of the two paper outlet wheels 300 through the two conical gears 610 that are engaged with each other, and also makes each of the paper outlet wheels 300 rotate in one direction.

[0043] In other embodiments, other transmission modes can be used.

[0044] The driving assembly 500 comprises a motor 510 and a gear transmission set 520, the motor 510 is connected with one of the paper outlet wheels 300 through the gear transmission set 520, the driving assembly 500 of the embodiment only drives one of the paper outlet wheels 300 to rotate, the gear transmission set 520 is used to realize the speed reduction of the motor 510 transmission, so as to drive one of the paper outlet wheels 300 to rotate, and the driving mode is simpler.

[0045] The gear transmission set 520 comprises a driving gear 521 coaxially connected with one of the paper outlet wheels 300, and a plurality of transmission gears 522 connected between the driving gear 521 and the output shaft of the motor 510, the motor 510 and the gear transmission set 520 of the embodiment are both mounted on the shell 100.

[0046] The shell 100 of the embodiment is provided with a battery assembly 800 electrically connected with the motor 510, so that portable use is realized without the need of connecting power supply, and modular assembly can be realized, and the shell 700 can be detachably mounted in the paper towel dispenser.

[0047] In use, the paper towel passes through the paper outlet 110 and the paper outlet channel formed by the plurality of paper outlet wheels 300 at the same time, the outer periphery of the plurality of paper outlet wheels 300 is in contact with the paper towel, the paper towel is clamped in the paper outlet channel formed by the plurality of paper outlet wheels 300 at this time, when the paper is output, the driving assembly 500 is used to drive the paper outlet wheel 300 to rotate, so as to drive the paper towel to move along the paper outlet channel, so as to realize automatic output from the paper outlet 110, and the driving assembly 500 can be adjusted according to the paper output length of the required paper towel, so as to solve the problems of easy paper breaking and paper towel blockage in manual paper drawing.

[0048] Further, the outer peripheral wall of each paper outlet wheel 300 is provided with an annular mounting groove 310, a friction sleeve (not shown in the figure) is sleeved on the mounting groove 310, the friction sleeve is partially located outside the mounting groove 310, and each paper outlet wheel 300 is in contact with the paper towel through the friction sleeve.

[0049] The paper outlet wheel 300 of the embodiment is in contact with the paper towel through the friction sleeve, so as to improve the friction force and avoid the phenomenon of slipping between the paper towel and the paper outlet wheel 300, the mounting groove 310 is used to limit the installation of the friction sleeve, the general friction sleeve is a soft member, the plurality of paper outlet wheels 300 can provide a pre-pressure to the paper towel through the friction sleeve, the friction coefficient of the contact surface is improved, and the force applied to the paper towel is also improved, so as to further improve the friction force.

[0050] Further, the embodiment further comprises an elastic paper pressing structure 400, which acts on at least one of the paper outlet wheels 300, so that at least one of the paper outlet wheels 300 has a tendency to move back to the center of the paper outlet channel. The elastic paper pressing structure 400 is arranged to provide a restoring force to at least one of the paper outlet wheels 300. When the paper towel is installed, the corresponding paper outlet wheel 300 can be moved outward, so that the paper outlet channel between the paper outlet wheels 300 is expanded, to facilitate the passing of the paper towel. After the passing of the paper towel, the corresponding paper outlet wheel 300 is restored under the action of the elastic paper pressing structure 400, so that the paper towel is kept in a compressed state, and a buffer displacement can be provided, to meet the use of paper towels of different sizes.

[0051] In some embodiments, the elastic paper pressing structure 400 can act on each of the paper outlet wheels 300, while in the embodiment, the elastic paper pressing structure 400 acts on one of the paper outlet wheels 300, and the other paper outlet wheels 300 are rotatably installed on the housing 100.

[0052] The elastic paper pressing structure 400 comprises a moving seat 410 for installing the paper outlet wheel 300, and an elastic member 420 acting between the housing 100 and the moving seat 410, which is arranged to provide a restoring force to the moving seat 410 in the direction of the center of the paper outlet channel. The elastic member 420 acts on the moving seat 410 to restore the paper outlet wheel 300 on the moving seat 410. In this embodiment, one of the paper outlet wheels 300 is adjustable, while the other paper outlet wheels 300 are fixedly installed, which is more stable in structural strength, and reduces the design difficulty, so that the structure is simpler.

[0053] Specifically, the housing 100 is provided with a movable groove 120 slidingly matched with the moving seat 410. The moving seat 410 comprises a cross arm 411 and two connecting arms 412 oppositely connected to the two ends of the cross arm 411. The paper outlet wheel 300 is coaxially connected with a rotating shaft 320, and the two ends of the rotating shaft 320 are connected with the two connecting arms 412. The elastic member 420 is a spring. The housing 100 is provided with a connecting column 130 connected with one end of the spring. The other end of the spring is connected to the middle of the side of the cross arm 411 away from the paper outlet wheel 300. Under the restoring force of the spring, the moving seat 410 pushes the paper outlet wheel 300 installed thereon, so that the paper outlet wheel 300 is kept pressed on the paper towel and the other paper outlet wheels 300.

[0054] In other embodiments, the elastic member 420 can be a spring piece or an elastic block, etc.

[0055] The embodiment also provides a paper towel dispenser, which comprises the paper outlet mechanism and the casing 900, the paper outlet mechanism is arranged on the casing 900, the casing 900 is internally provided with a paper towel cavity for mounting a paper roll, and the casing 900 is externally provided with a front cover 910, the front cover 910 is openable and closable, and the front cover 910 can be openable and closable in various modes, the bottom of the front cover 910 is hinged to the bottom of the casing 900, and a lock catch structure 920 is arranged between the top of the front cover 910 and the casing 900.

[0056] In the embodiment, the front cover 910 and the casing 100 are separated and detachable, the front cover 910 is provided with a mounting opening 911, and the casing 100 is mounted on the mounting opening 911, so that the assembly is modularized, and the paper outlet 110 directly serves as an outlet for the paper towel to be drawn out of the casing 900.

[0057] The casing 100 of the embodiment comprises a front casing 140 and a rear casing 150 which are sleeved with each other, the paper outlet 110 is arranged on the front casing 140, and a paper inlet 151 opposite to the paper outlet 110 is arranged on the rear casing 150, and all the paper outlet wheels 300 are arranged between the paper outlet 110 and the paper inlet 151, that is, the paper towel passes through the paper inlet 151, the paper outlet channel and the paper outlet 110 in sequence from inside to outside.

[0058] In other embodiments, the paper outlet 110 can be arranged on the lower side, the upper side, the left side or the right side of the casing 900.

[0059] The preferred embodiments of the application are specifically described above, but the application is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the application, and the equivalent modifications or replacements are all included in the scope defined by the claims of the application.

Claims

1. A paper dispensing mechanism suitable for a tissue dispenser, characterized in that: It includes: The housing (100) is provided with a paper outlet (110). The paper output rollers (300) are provided in multiple ways. The multiple paper output rollers (300) are arranged in a ring around the central axis of the paper output port (110). A paper output channel is formed between the outer peripheries of the multiple paper output rollers (300) for the paper towel to pass through and opposite to the paper output port (110). The tangential direction of the outer periphery of each paper output roller (300) near the central axis of the paper output port (110) is in the same direction as the extension direction of the paper output channel. A drive assembly (500) is used to drive at least one of the plurality of paper output rollers (300) to rotate; Each of the paper output rollers (300) has an annular mounting groove (310) on its outer peripheral wall. A friction sleeve is fitted into the mounting groove (310). The friction sleeve is partially located outside the mounting groove (310). Each of the paper output rollers (300) contacts the paper towel through the friction sleeve. It also includes an elastic paper-pressing structure (400) that acts on at least one of the paper output rollers (300) to give at least one of the paper output rollers (300) a tendency to move and reset in the direction of the center of the paper output channel; The elastic paper pressing structure (400) includes a movable seat (410) for mounting one of the paper output rollers (300) and an elastic member (420) acting between the housing (100) and the movable seat (410), the elastic member (420) being used to provide the movable seat (410) with a restoring force in the direction toward the center of the paper output channel; The housing (100) is provided with a movable groove (120) that slides with the movable seat (410). The movable seat (410) includes a horizontal arm (411) and two connecting arms (412) that are respectively connected to the two ends of the horizontal arm (411). The paper output wheel (300) is coaxially connected to a rotating shaft (320). The two ends of the rotating shaft (320) are respectively connected to the two connecting arms (412). The elastic element (420) is a spring. The housing (100) is provided with a connecting post (130) that is connected to one end of the spring. The other end of the spring is connected to the middle of the side of the horizontal arm (411) away from the paper output wheel (300).

2. The paper output mechanism according to claim 1, characterized in that: A transmission structure (600) is connected between two adjacent paper output rollers (300), and the transmission structure (600) is used to make the two adjacent paper output rollers (300) rotate in the same direction.

3. The paper output mechanism according to claim 2, characterized in that: The transmission structure (600) includes two meshing bevel gears (610), which are respectively connected to two adjacent paper output rollers (300).

4. The paper output mechanism according to claim 2, characterized in that: The drive assembly (500) includes a motor (510) and a gear transmission group (520), wherein the motor (510) is connected to one of the paper output rollers (300) via the gear transmission group (520).

5. The paper output mechanism according to any one of claims 1 to 4, characterized in that: The paper output roller (300) and the drive assembly (500) are both mounted on the housing (100), and the housing (100) is provided with a battery assembly (800) connected to the drive assembly (500).

6. A tissue dispenser, characterized in that: It includes: The paper output mechanism as described in any one of claims 1 to 5; The housing (900) has a paper outlet (110) that extends through the inner and outer sides of the housing (900).

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