All-plastic toothpaste pump with function of preventing paste from returning

Abstract

The utility model relates to a pump body, in particular to an all-plastic toothpaste pump with a function of preventing a toothpaste body from returning, which comprises a tube body, a pressing discharge unit, a lower piston component and a mounting seat, the lower piston assembly is slidably mounted in the pipe body; the two ends of the elastic piece are communicated, and a first silica gel valve is installed at the end, facing the pressing discharging unit, of the elastic piece; a second silica gel valve is mounted at the discharge hole of the pipe body; the pipe body is detachably connected with the mounting base, the elastic piece is embedded into the mounting base, and the two ends of the elastic piece abut against the pressing discharging unit and a discharging opening of the pipe body respectively so as to form a cavity with the two ends controlled in a one-way communication mode through the first silica gel valve and the second silica gel valve respectively. One-way conduction control is achieved at the conduction positions of the two ends through the first silica gel valve and the second silica gel valve, when the pressing discharging unit is pressed downwards, the elastic piece deforms, the first silica gel valve is in a blocked state, and paste is prevented from returning.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pump body, specifically a full-plastic toothpaste pump with a function of preventing paste from returning. BACKGROUND

[0002] At present, in the application field of daily chemical products, the packing of material body usually adopts hose packing and pump type packing bottle.

[0003] However, with the improvement of people's living standard and the progress of technology, the requirement of the packing structure of various daily chemical products is also higher and higher, the appearance of the hose extrusion type toothpaste tube is particularly old, and cannot meet the requirement of consumers on the aesthetics of products, the structure of the toothpaste tube containing material body is simpler, and the use is more convenient, therefore, the toothpaste tube is improved in appearance and structure, and the requirement of consumers is met.

[0004] In order to meet the requirement of consumers, the pump type structure toothpaste tube emerges as the times require, the use method of the toothpaste tube pump usually adopts the up-down pressing mode, generally includes a pressing piece, an elastic piece, a one-way valve and a lower piston, when the pressing piece resets, the lower piston moves up, when the pressing piece presses down, the lower piston is provided with a check piece to prevent the lower piston from moving down and causing the paste to return, but the check piece is in contact with the inner wall of the tube body, after pressing for a certain time, the check effect of the check piece is poor, the lower piston moves down slightly, the paste returns, and the discharging effect is affected. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a full-plastic toothpaste pump with a function of preventing paste from returning, to solve the problems in the background art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A full-plastic toothpaste pump with a function of preventing paste from returning, comprising a tube body, a pressing discharging unit, a lower piston assembly and a mounting seat.

[0008] The lower piston assembly is slidably installed in the tube body.

[0009] Further comprising an elastic piece with a through shape at both ends, the elastic piece is provided with a first silica gel valve at one end facing the pressing discharging unit.

[0010] The tube body is provided with a second silica gel valve at the discharging port.

[0011] The pipe body is detachably connected with the mounting base, the elastic member is embedded in the mounting base, and the two ends are respectively abutted with the pressing discharging unit and the discharging port of the pipe body to form a cavity which is controlled by the first silica gel valve and the second silica gel valve in one-way conduction respectively.

[0012] The all-plastic toothpaste pump with the function of preventing the paste from returning as described above: the elastic member comprises a plastic spring or a silica gel spring.

[0013] The all-plastic toothpaste pump with the function of preventing the paste from returning as described above: one end of the plastic spring is formed with a clamping groove for clamping the first silica gel valve, and the other end is formed with a connecting seat arranged in a ring shape, and the two ends of the connecting seat are respectively abutted with the discharging port of the pipe body and the inner wall of the mounting base.

[0014] The all-plastic toothpaste pump with the function of preventing the paste from returning as described above: the inner side of the pipe body is formed with a convex ring, and the second silica gel valve is clamped into the inner side of the convex ring.

[0015] An annular groove for placing the plastic spring is formed between the outer wall of the convex ring and the inner wall of the pipe body.

[0016] The all-plastic toothpaste pump with the function of preventing the paste from returning as described above: the pressing discharging unit comprises a discharging pipe which is inserted into the mounting base and is in sliding connection with the mounting base, and the discharging pipe is clamped with the plastic spring.

[0017] A key is further included, which is covered on the discharging pipe and is in rotational connection with the convex column formed on the discharging pipe.

[0018] The all-plastic toothpaste pump with the function of preventing the paste from returning as described above: a convex limiting member in a ring shape is formed on the mounting base, the discharging pipe is inserted into the convex limiting member, and the sliding block arranged on the discharging pipe is in sliding connection with the limiting sliding groove formed on the convex limiting member.

[0019] The all-plastic toothpaste pump with the function of preventing the paste from returning as described above: a pump head cover is further included, which is detachably connected with the mounting base, and the discharging pipe and the key protrude from the pump head cover.

[0020] The all-plastic toothpaste pump with the function of preventing the paste from returning as described above: the lower piston assembly comprises a lower piston and a sealing sliding member arranged on the lower piston and in sealing sliding connection with the inner wall of the pipe body.

[0021] Compared with the prior art, the utility model discloses the beneficial effect is: through the installation seat cooperation plastic spring makes the upper of pipe body form a cavity of both ends lead, both ends lead respectively through first silica gel valve and second silica gel valve realizes one -way lead control, when pressing the downward press of discharge unit, plastic spring occurs deformation, first silica gel valve is in the plugging state, prevent the paste back, the pressure of cavity opens first silica gel valve, realizes the discharge, after unfastening press discharge unit, plastic spring resets, first silica gel valve is in the plugging state, the raw material in the pipe body passes through first silica gel valve and enters the cavity, thereby realizes the raw material supplement in the cavity.

[0022] The first silica gel valve and the second silica gel valve are arranged, so that no extrusion force is generated in the pipe body, thereby eliminating the downward pressure received by the lower piston assembly when the toothpaste pump is used, ensuring that no gap is generated in the pipe body, improving the smoothness of the pressing discharge, reducing the use of the check valve in the lower piston assembly, and prolonging the service life of the lower piston assembly.

[0023] The plastic spring is made of TPU material, so that the elastic performance of the plastic spring is more excellent, and the problem that the elastic element cannot reset or cannot completely reset in the pressing discharge is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structure schematic view of the full plastic toothpaste pump with the paste back prevention function.

[0025] Figure 2 It is a top view of the full plastic toothpaste pump with the paste back prevention function.

[0026] Figure 3 It is Figure 2 It is a sectional view in the A-A direction.

[0027] Figure 4 It is an explosion view of the full plastic toothpaste pump with the paste back prevention function.

[0028] In the drawing: 1-pipe body, 101-convex ring, 102-ring groove, 2-key, 3-discharge pipe, 301-convex column, 302-sliding block, 4-pump head cover, 5-first silica gel valve, 6-plastic spring, 601-connection seat, 602-clamping groove, 7-lower piston, 8-mounting seat, 801-convex limiting piece, 802-limiting sliding groove, 9-sealing sliding piece, 10-second silica gel valve. DETAILED DESCRIPTION

[0029] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numbers in the drawings represent functionally the same or similar elements. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0030] The term "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations.

[0031] In addition, for the purpose of convenience and brevity, detailed descriptions of well-known methods, apparatuses, and / or devices are omitted so as to avoid unnecessarily obscuring the concepts of the present application.

[0032] Referring now to the drawings Figures 1-4 The utility model discloses an all plastic toothpaste pump with the function of preventing the backflow of paste, which comprises a pipe body 1, a pressing discharging unit, a lower piston assembly, a mounting seat 8 and an elastic element.

[0033] The lower piston assembly is slidably installed in the pipe body 1.

[0034] The plastic spring 6 has a first silica gel valve 5 installed at one end thereof, which faces the pressing discharging unit.

[0035] The pipe body 1 is provided with a second silica gel valve 10 at the discharging opening thereof.

[0036] The pipe body 1 is detachably connected to the mounting seat 8, preferably, the pipe body 1 is threadedly connected to the mounting seat 8, and the plastic spring 6 is embedded in the mounting seat 8 and abuts against the pressing discharging unit and the discharging opening of the pipe body 1 at two ends, so as to form a cavity which is controlled in a one-way conduction manner through the first silica gel valve 5 and the second silica gel valve 10 at two ends.

[0037] In the embodiment, the mounting seat 8 cooperates with the plastic spring 6 to form a cavity with two ends in conduction at the upper portion of the pipe body 1, and the first silica gel valve 5 and the second silica gel valve 10 are arranged at the two ends in conduction to realize one-way conduction control. When the pressing discharging unit is pressed downward, the plastic spring 6 is deformed, the first silica gel valve 10 is in a blocking state, the backflow of the paste is prevented, the pressure in the cavity pushes open the first silica gel valve 5, and the discharging is realized. After the pressing discharging unit is released, the plastic spring 6 is reset, the first silica gel valve 5 is in a blocking state, and the raw material in the pipe body 1 enters the cavity through the first silica gel valve 10, so as to realize the replenishment of the raw material in the cavity.

[0038] The first silica gel valve 5 and the second silica gel valve 10 are arranged, so that no extrusion force is generated in the pipe body 1, thereby eliminating the downward pressure on the lower piston assembly during use of the toothpaste pump, ensuring that no gap is generated in the pipe body 1, improving the smoothness of the pressing discharging, reducing the use of the check valve in the lower piston assembly, and prolonging the service life of the lower piston assembly.

[0039] It should be noted that the plastic spring 6 is made of TPU material, so that the elastic performance of the plastic spring 6 is more excellent, and the problem that the elastic element cannot be reset or cannot be completely reset during pressing discharging is reduced.

[0040] Further, one end of the plastic spring 6 is formed with a clamping groove 602 for clamping the first silica gel valve 5, and the other end is formed with a connecting seat 601 arranged in an annular shape, and the two ends of the connecting seat 601 in the axial direction are respectively in abutment with the discharging port of the pipe body 1 and the inner wall of the mounting seat 8.

[0041] The plastic spring 6 is in a tubular structure that is vertically continuous, and the connecting part of the plastic spring 6 and the connecting seat 601 is in an arc shape, thereby providing a deformation position for the plastic spring 6, and the axial width of the connecting seat 601 is adapted to the width of the groove formed between the discharging port of the pipe body 1 and the mounting seat 8 after installation, so that the plastic spring 6 is in sealing contact with the discharging port of the pipe body 1 after installation.

[0042] Further, please refer to Figures 2-4 , the inner side of the pipe body 1 is formed with a convex ring 101, and the second silica gel valve 10 is clamped into the inner side of the convex ring 101; and an annular groove 102 for placing the plastic spring 6 is formed between the outer wall of the convex ring 101 and the inner wall of the pipe body 1.

[0043] The inner side of the convex ring 101 is further provided with a receiving ring for placing the second silica gel valve 10, and the receiving ring is in abutment with the second silica gel valve 10 to seal the inner side of the pipe body 1, and an annular protruding element is further formed on the inner wall of the convex ring 101, and the annular protruding element and the receiving ring form a clamping position for fixing the position of the second silica gel valve 10, thereby ensuring the stability of the second silica gel valve 10 after installation. In addition, the close abutment between the receiving ring and the second silica gel valve 10 further improves the sealing effect of the inner side of the pipe body 1, thereby ensuring the sealing performance and reliability of the entire device during operation.

[0044] Please refer to Figure 1 , Figure 3 and Figure 4 , the pressing discharging unit comprises a discharging pipe 3 inserted into the mounting seat 8 and in sliding connection with the mounting seat 8, and the discharging pipe 3 is clamped with the plastic spring 6.

[0045] Further comprising a button 2, which is placed on the discharge pipe 3 and is rotationally connected with the convex column 301 formed on the discharge pipe 3.

[0046] In an exemplary embodiment, a convex limiting member 801 in the shape of a ring is formed on the mounting seat 8, the discharge pipe 3 is inserted into the convex limiting member 801, and the sliding block 302 provided on the discharge pipe 3 is slidingly connected with the limiting sliding slot 802 formed on the convex limiting member 801.

[0047] The button 2 is manually pressed and is rotated by a certain angle relative to the discharge pipe 3, so that the discharge end of the discharge pipe 3 leaks out, and then the button 2 is continuously pressed, so that the button 2 and the discharge pipe 3 are simultaneously moved downward to extrude the plastic spring 6 to realize the extrusion of the paste, the discharge pipe 3 and the button 2 are reset by the elastic restoring force of the plastic spring 6, and the device is conveniently used, in addition, the cooperation of the convex limiting member 801, the limiting sliding slot 802 and the sliding block 302 can effectively ensure the stable sliding of the discharge pipe 3 in the mounting seat 8.

[0048] The all-plastic toothpaste pump with the function of preventing the paste from returning further comprises a pump head cover 4, which is detachably connected with the mounting seat 8, preferably, the pump head cover 4 is threadedly connected with the mounting seat 8, the discharge pipe 3 and the button 2 protrude from the pump head cover 4, and the reset stroke of the discharge pipe 3 and the button 2 is limited by the pump head cover 4, so as to prevent the discharge pipe 3 and the button 2 from falling.

[0049] Further, the lower piston assembly comprises a lower piston 7 and a sealing sliding member 9 provided on the lower piston 7 and sealingly sliding with the inner wall of the pipe body 1, the second silica gel valve 10 is provided, the problem of the downward movement of the lower piston 7 is eliminated, the use of the existing metal check member is eliminated, the toothpaste pump of the embodiment is all-plastic, recycling is convenient, and the environmental protection effect is good.

[0050] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0051] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. A full plastic toothpaste pump with a function of preventing the backflow of paste, comprising: The pipe body (1), the pressing discharging unit, the lower piston assembly and the mounting base (8); The lower piston assembly is slidingly installed in the pipe body (1); Characterized in that it further comprises elastic members with open ends, one end of the elastic member is provided with a first silica gel valve (5) towards the pressing discharging unit; A second silica gel valve (10) is installed at the discharging port of the pipe body (1); The pipe body (1) is detachably connected with the mounting base (8), the elastic member is embedded in the mounting base (8), and the two ends are respectively abutted with the pressing discharging unit and the discharging port of the pipe body (1) to form a cavity which is controlled by the first silica gel valve (5) and the second silica gel valve (10) in one-way open direction respectively.

2. A full plastic toothpaste pump with a function of preventing the toothpaste from returning according to claim 1, characterized in that, The elastic member comprises a plastic spring (6) or a silica gel spring.

3. A full plastic toothpaste pump with a function of preventing the toothpaste from returning according to claim 2, characterized in that, One end of the plastic spring (6) is formed with a clamping groove (602) for clamping the first silica gel valve (5), and the other end is formed with a connecting seat (601) arranged in a ring shape, and the two ends of the connecting seat (601) along the axial direction are respectively abutted with the discharging port of the pipe body (1) and the inner wall of the mounting base (8).

4. The all-plastic toothpaste pump with a function of preventing the toothpaste from returning according to claim 2, characterized in that, The inner side of the pipe body (1) is formed with a convex ring (101), and the second silica gel valve (10) is clamped into the inner side of the convex ring (101); An annular groove (102) for placing the plastic spring (6) is formed between the outer wall of the convex ring (101) and the inner wall of the pipe body (1).

5. The all-plastic toothpaste pump with a function of preventing the toothpaste from returning according to claim 2, characterized in that, The pressing discharging unit comprises a discharging pipe (3) inserted into the mounting base (8) and slidingly connected with the mounting base (8), and the discharging pipe (3) is clamped with the plastic spring (6); It further comprises a key (2) which is placed on the discharging pipe (3) and is rotationally connected with the convex column (301) formed on the discharging pipe (3).

6. A full plastic toothpaste pump with a function of preventing the toothpaste from returning according to claim 5, characterized in that, The mounting base (8) is formed with a convex limiting member (801) in a ring shape, the discharging pipe (3) is inserted into the convex limiting member (801), and the sliding block (302) provided on the discharging pipe (3) is slidingly connected with the limiting sliding groove (802) formed on the convex limiting member (801).

7. A plastic toothpaste pump with a function of preventing the toothpaste from returning according to claim 5, wherein, It further comprises a pump head cover (4) which is detachably connected with the mounting base (8), and the discharging pipe (3) and the key (2) protrude from the pump head cover (4).

8. The all-plastic toothpaste pump with a function of preventing the toothpaste from returning according to claim 1, characterized in that, The lower piston assembly comprises a lower piston (7) and a sealing sliding member (9) provided on the lower piston (7) and sealingly sliding with the inner wall of the pipe body (1).

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