Quantitative extrusion device

Abstract

The utility model discloses a quantitative extrusion device which comprises a material body bin and a shell, one end of the material body bin is provided with a discharging nozzle used for extruding paste, a piston is arranged in the material body bin in a sliding fit connection mode in the axial direction, and a threaded rod is arranged in the middle of the piston in a threaded connection and penetrating mode. One end of the screw rod is connected with the shell, and the shell is coaxially arranged on the periphery of the material body bin in a sleeving mode; and the ratchet mechanism is used for limiting the rotating direction of the shell relative to the material body bin. According to the utility model, the shell and the material bin are coaxially matched, so that the screw rod and the piston are axially pushed and extruded, further, a ratchet mechanism is arranged between the shell and the material bin, so that accurate extrusion quantity determination and tactile feedback are provided for a user, meanwhile, the reverse rotation of the user is limited, the formation of an internal cavity is avoided, and the quantitative extrusion effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to paste extrusion device field relates to a quantitative extrusion device. BACKGROUND

[0002] The existing field based on piston push extrusion device has been widely applied in the storage and use of viscous paste material such as toothpaste, paste cleaning liquid, paste cosmetics, paste medicine, for example, the toothpaste tube and cosmetic bottle disclosed in patents CN109398920A and CN219707611U are all by setting paste in the tube, rotating drive piston shaft to realize the extrusion of paste, however, the existing such extrusion device has defects, the rotation direction is not limited, the user is easy to reverse when operating to make piston retreat, it is possible to cause water or other pollutants to be sucked in, at the same time, it will also cause the paste in the tube to enter the air to form a cavity, for the use scene that needs quantitative extrusion, the paste after forming a cavity will produce uneven extrusion, so as to judge the extrusion amount and cause waste. SUMMARY

[0003] The utility model discloses in order to overcome the insufficient of prior art, provide a quantitative extrusion device.

[0004] In order to realize the above-mentioned purpose, the utility model discloses the following technical scheme:

[0005] A quantitative extrusion device, including the material body warehouse and the shell, one end of the material body warehouse is provided for the material outlet of paste extrusion, the piston is arranged in the material body warehouse and is slid along the axial direction, the middle part of the piston is connected with the screw rod, one end of the screw rod is connected with the shell, the shell is coaxially arranged on the outer periphery of the material body warehouse, and a ratchet mechanism for limiting the rotation direction of the shell relative to the material body warehouse is further included.

[0006] Further, the ratchet mechanism includes a driving member fixedly arranged on one side of the axial end of the material body warehouse and a driven member fixedly arranged on the shell, the driven member is arranged on the inner periphery of the driving member, one of the inner periphery of the driving member and the outer periphery of the driven member is provided with a ratchet, and the other is provided with a pawl, and the driving member, the driven member and the screw rod are coaxially arranged.

[0007] Further, the axial end of the shell is provided with a base, the base is detachably connected with the shell, one end of the screw rod is connected with the base, and the driven member is connected with the base.

[0008] Further, the inner wall of the material body warehouse is provided with a limiting rib extending along the axial direction, and the outer periphery of the piston is provided with a limiting groove matched with the limiting rib.

[0009] Further, the outer periphery of the material body bin is further provided with an interactive wave wheel.

[0010] Further, one side shaft end of the material body bin is provided with an opening, the discharge nozzle is in clamping cooperation with the material body bin, and the discharge nozzle is in communication with the opening.

[0011] To sum up, the beneficial effects of the utility model are as follows:

[0012] The utility model adopts coaxial cooperation of the shell and the material body bin, provides axial propulsion extrusion of the screw rod and the piston, further provides accurate extrusion amount determination and tactile feedback for the user through the setting of the ratchet mechanism between the shell and the material body bin, limits the user from reversing at the same time, avoids the formation of the internal cavity, and guarantees the quantitative extrusion effect. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structure schematic view of the extrusion device of the utility model.

[0014] Figure 2 It is a structure schematic view of the utility model. Figure 1

[0015] Figure 3 It is an explosion structure schematic view of the utility model. Figure 1

[0016] It is a structure schematic view of another angle of view in the utility model. Figure 4 Figure 3 It is a structure schematic view of the inside of the material body bin.

[0017] Figure 5 The figure mark: 1, material body bin, 11, discharge nozzle, 12, limiting rib, 13, interactive wave wheel, 2, shell, 21, base, 31, piston, 32, limiting groove, 33, screw rod, 34, driving part, 35, driven part. DETAILED DESCRIPTION

[0018] The embodiments of the utility model will be described below through specific concrete examples, and the person skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification. The utility model can also be implemented or applied through another different specific embodiment, and each detail in the specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the utility model. It should be noted that the following examples and the features in the examples can be combined with each other without conflict. DETAILED DESCRIPTION

[0019] The embodiments of the utility model will be described below through specific concrete examples, and the person skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification. The utility model can also be implemented or applied through another different specific embodiment, and each detail in the specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the utility model. It should be noted that the following examples and the features in the examples can be combined with each other without conflict.

[0020] ​It is to be noted that the drawings provided in the following embodiments only schematically illustrate the basic concept of the present application, and the drawings only show the components related to the present application, rather than being drawn according to the number, shape and size of the components in actual implementation. The shape, number and proportion of each component in actual implementation can be arbitrarily changed, and the component layout pattern can also be more complex.

[0021] All directional indications (such as up, down, left, right, front, back, transverse, longitudinal, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture. If the specific posture changes, the directional indications also change accordingly.

[0022] Due to installation errors and other reasons, the parallel relationship referred to in the embodiments of the present application can actually be an approximate parallel relationship, and the perpendicular relationship can actually be an approximate perpendicular relationship.

[0023] The present application provides a kind of quantitative extrusion device, for toothpaste, tooth mousse etc. Paste, or other paste such as cosmetic paste The filling and quantitative extrusion of paste, device includes material body warehouse 1 and shell 2, material body warehouse 1 fills paste, in the interior setting propelling structure, by the relative rotation of material body warehouse 1 and shell 2 drive propelling structure and push out paste.

[0024] With reference to Figure 1 , Figure 2 and Figure 5 , material body warehouse 1 is linear circular tube structure, one of the axial ends of material body warehouse 1 is provided with a narrowed discharge nozzle 11, for the discharge of paste, the discharge nozzle 11 can be provided as a split type with the material body warehouse 1, the top of the material body warehouse 1 is provided with an opening for loading paste, the discharge nozzle 11 and the material body warehouse 1 form detachable clamping fixation, so that the discharge nozzle 11 is communicated with the opening, and a cover can be provided on the discharge nozzle 11; A piston 31 is arranged in the material body warehouse 1, the outer peripheral wall of the piston 31 is attached to the inner peripheral wall of the material body warehouse 1, and one or more limiting ribs 12 extending along the axial direction of the material body warehouse 1 are further arranged on the inner peripheral wall of the material body warehouse 1, the outer peripheral recess of the piston 31 is provided with a limiting groove 32 matched with the limiting rib 12, so that the limiting rib 12 and the limiting groove 32 limit the rotation direction between the piston 31 and the material body warehouse 1, so that the piston 31 can move relative to the axial direction of the material body warehouse 1, but cannot rotate relative to the material body warehouse 1.

[0025] The shell 2 is in a cylindrical structure, the shell 2 is coaxially sleeved on the outer periphery of the material body bin 1, the inner wall of the shell 2 and the outer wall of the material body bin 1 are provided with clamping structures, including clamping grooves and clamping blocks distributed along the circumference, so that the axial positions of the shell 2 and the material body bin 1 are limited when they are clamped, but the relative rotating action is not affected, the advancing structure is arranged at one end of the shell 2, the advancing structure includes a screw rod 33 and a rotating assembly for driving the screw rod 33 to rotate, the axis of the screw rod 33 is arranged to coincide with the axis of the material body bin 1, the screw rod 33 is arranged to pass through the middle part of the piston 31 into the material body bin 1 and is threadedly connected with the piston 31, one end of the screw rod 33 is fixedly connected with the shell 2, so that when the shell 2 rotates relative to the material body bin 1, the piston 31 rotates relative to the screw rod 33, so that the piston 31 can move along the axial direction of the material body bin 1.

[0026] With reference to Figure 3 and Figure 4 , the rotating assembly includes a driving member 34 and a driven member 35, the driving member 34, the driven member 35 and the screw rod 33 are coaxially arranged, the driven member 35 is fixedly connected with the shell 2, and the driving member 34 is fixedly arranged at the end of the material body bin 1, wherein the inner periphery of the driving member 34 is annularly arranged on the outer periphery of the driven member 35, one of the inner periphery of the driving member 34 and the outer periphery of the driven member 35 is provided with a ratchet tooth, and the other is provided with a pawl, so as to form a ratchet structure, so that the shell 2 and the material body bin 1 can only rotate relative to each other in a single direction and cannot be reversed, thereby facilitating the user to quickly distinguish the rotation direction during use and avoiding the piston 31 from being retracted due to reverse rotation to cause an internal cavity and affect the quantitative extrusion effect.

[0027] Further, the cooperation of the ratchet tooth and the pawl provides accurate positioning of the relative rotating position of the shell 2 and the material body bin 1 in the circumferential direction, the required number of teeth of the ratchet tooth can be set to accurately determine the amount of paste extruded by a single rotation, and the user can also accurately estimate the current extrusion amount according to the collision tactile feedback of the ratchet tooth and the pawl during the rotating process.

[0028] As a preferred, the ratchet tooth is arranged on the inner periphery of the driving member 34, and the pawl with a certain elasticity is arranged on the outer periphery of the driven member 35.

[0029] In order to facilitate the quick disassembly, filling and other operations of the device, the axial end of the shell 2 is provided as a detachable structure, including a base 21, the end of the shell 2 is arranged to be open, the base 21 and the shell 2 are connected in a coaxial plug-in, clamping or spline cooperation and other detachable connection modes, the outer periphery of the base 21 and the inner periphery of the shell 2 are tightly fitted and clamped with a sealing rubber ring to realize sealing, one end of the screw rod 33 is fixedly connected with the base 21, and the connection mode includes but is not limited to plug-in, clamping and the like, and the driven member 35 is fixedly connected with the base 21, and the connection mode includes but is not limited to plug-in, clamping and the like.

[0030] The detachable structure is arranged, and the disassembly and assembly of the advancing structure can be quickly operated by detaching the base 21 and the shell 2.

[0031] The outer periphery of the material body bin 1 is further fixedly provided with an interactive wave wheel 13, and the outer periphery of the interactive wave wheel 13 is provided with multiple protrusions, so that the user can more conveniently operate the relative rotation of the material body bin 1 and the shell 2.

[0032] Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor shall belong to the scope of protection of the present application.

Claims

1. A quantitative extrusion device, characterized in that, The device includes a material storage chamber (1) and a shell (2). One end of the material storage chamber (1) is provided with a nozzle (11) for extruding paste. A piston (31) is slidably connected to the material storage chamber (1) along the axial direction. A screw (33) is threaded through the middle of the piston (31). One end of the screw (33) is connected to the shell (2). The shell (2) is coaxially sleeved on the outer periphery of the material storage chamber (1). The device also includes a ratchet mechanism for limiting the rotation direction of the shell (2) relative to the material storage chamber (1).

2. The quantitative extrusion device according to claim 1, characterized in that, The ratchet mechanism includes an active component (34) fixedly disposed on one side of the shaft end of the material bin (1) and a passive component (35) fixedly disposed on the outer shell (2). The passive component (35) is disposed on the inner circumference of the active component (34). One of the inner circumference of the active component (34) and the outer circumference of the passive component (35) is provided with ratchet teeth, and the other is provided with pawls. The active component (34), the passive component (35) and the screw (33) are coaxially disposed.

3. A quantitative extrusion device according to claim 2, characterized in that, The housing (2) has a base (21) at its shaft end. The base (21) is detachably connected to the housing (2). One end of the screw (33) is connected to the base (21). The passive component (35) is connected to the base (21).

4. A quantitative extrusion device according to claim 1, characterized in that, The inner wall of the material bin (1) is provided with a limiting rib (12) extending axially, and the outer periphery of the piston (31) is provided with a limiting groove (32) for cooperating with the limiting rib (12).

5. A quantitative extrusion device according to claim 1, characterized in that, An interactive impeller (13) is also provided on the outer periphery of the material bin (1).

6. A quantitative extrusion device according to claim 1, characterized in that, An opening is provided on one side of the material bin (1), and the discharge nozzle (11) is engaged with the material bin (1) and communicates with the opening.

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