CN213800995U - Foam pump with brush - Google Patents

Abstract

The utility model discloses a take foam pump of brush, including shell, button and pump main part, the button is equipped with the foam passageway, pump main part and foam passageway intercommunication form liquid outlet channel, the button exit is provided with the brush, the pump main part includes the cylinder, air pump piston and the liquid pump piston assembly that are fixed in the inboard lower extreme of shell, the cylinder is cut apart by liquid pump piston assembly with the air pump piston and is formed air pump chamber and liquid pump chamber, when the button is pressed, drive air pump piston and liquid pump piston assembly and slide downwards; the brush is also provided with a liquid outlet cover, the brush is provided with a plurality of liquid outlets, a plurality of rectangular bristles and a plurality of cylindrical bristles, the rectangular bristles are arranged around the edge of the brush at intervals, and the cylindrical bristles are arranged in the middle of the rectangular bristles. This scheme is through having increased the brush, can directly extrude the foam from the liquid outlet of brush during the use and prevent that the foam from spilling over the brush through the rectangle brush hair on the brush, and the foam combines brush direct action at last to face, can reach better clean effect, and consumer experiences better.

Description

Foam pump with brush

Technical Field

The utility model belongs to the foam pump field especially relates to the foam pump of taking brush.

Background

A foam pump is a device capable of directly foaming a liquid, and is generally used in a hand sanitizer or a liquid cosmetic, and is very popular with consumers due to its many advantages, and has a wide market, such as: 1. the use is convenient: the foam is extruded by the pump head, so that the process of soaking, scrubbing and foaming is omitted. 2. The consumption is saved: the dosage of each use is 1/2 of the dosage of the common liquid. 3. The efficacy is doubled: directly foams and is not easy to fall off, so that the effective ingredients in the foam are fully utilized, and the cleaning, sterilizing and moistening effects are greatly improved.

When the liquid cosmetic cleans the face of a human body, a consumer usually squeezes the foam of the liquid cosmetic in the hands and then applies the foam on the face by rubbing the foam with the hands, dirt can be accumulated in pores of the face of the human body, the dirt in the pores can be hardly discharged in a cleaning mode of only applying the foam with the hands, the cleaning effect is general, and the consumer experience is poor.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a foam pump with a brush, which comprises a shell, a press head and a pump main body, wherein the press head and the pump main body are arranged at the top of the shell; the brush and the press head are also provided with a liquid outlet cover, the brush is provided with a plurality of liquid outlets, a plurality of rectangular bristles and a plurality of cylindrical bristles, the rectangular bristles are arranged around the edge of the brush at intervals, and the cylindrical bristles are arranged in the middle of the rectangular bristles. This scheme is through pressing the head to increase the brush, can directly extrude the foam from the liquid outlet of brush and prevent that the foam from spilling over the brush through the rectangle brush hair on the brush during use, and the foam combines brush direct action face at last, can reach better clean effect, and consumer experiences better.

The purpose of the utility model is realized by adopting the following technical scheme:

the foam pump with the brush comprises a shell, a press head and a pump main body, wherein the press head is arranged at the top of the shell, the press head is provided with a foam channel, the pump main body is communicated with the foam channel to form a liquid outlet channel, the brush is arranged at an outlet of the press head, the pump main body comprises a cylinder, an air pump piston and a liquid pump piston assembly which are fixed at the lower end of the inner side of the shell, the cylinder and the air pump piston are divided by the liquid pump piston assembly to form an air pump chamber and a liquid pump chamber, and the air pump piston and the liquid pump piston assembly are driven to slide downwards when the press head is pressed; the brush is provided with a plurality of liquid outlets, a plurality of rectangular bristles and a plurality of cylindrical bristles, the rectangular bristles are arranged around the edge of the brush at intervals, and the cylindrical bristles are arranged in the middle of the rectangular bristles.

Further, liquid pump piston assembly including set up in air pump piston and can along the liquid pump cover that the indoor wall of liquid pump removed, set up in the seat of rubbing of the indoor bottom of liquid pump, nested in the liquid pump cover and lower extreme can along the liquid pump piston that the inside of seat of rubbing removed, suit in the outside spring of liquid pump piston and set up in the glass of liquid pump chamber bottom, the spring upper end with the bottom butt of liquid pump cover, the lower extreme with the bottom of the seat of rubbing is connected, liquid pump cover, liquid pump piston with the air pump piston forms the gas-liquid mixing chamber, liquid pump cover, air pump piston, the net of rubbing and according to the head in proper order the intercommunication form liquid outlet channel.

Furthermore, the air pump piston is provided with a plurality of air holes for air to enter the air pump chamber, the top of the air pump piston is also provided with annular blades, the annular blades are made of elastic materials, and the annular blades are provided with outer rings for blocking air from leaking out of the air pump chamber and inner rings for preventing liquid in the air-liquid mixing chamber from flowing into the air pump chamber.

Further, the cylinder is in the shape of an inverted hollow stepped cylinder, the diameter of the air pump chamber is larger than that of the liquid pump chamber, and the connecting end of the liquid pump chamber and the air pump chamber is recessed towards the inner side of the air pump chamber.

Further, the top of air pump room outwards extends a ring, be equipped with a plurality of groups of protruding bone position on the ring, the shell corresponds the ring installation department is equipped with a plurality of limiting plates, the side of limiting plate with protruding bone position contact is in order to restrict take place to rotate between shell and the cylinder, a plurality of limiting plate annular interval set up in the shell is inboard.

Furthermore, two of the convex bone positions in each group are arranged in parallel at intervals, and the convex bone positions are four groups and are arranged on the circular ring at intervals in an annular manner.

Further, the shell is that the cavity ladder is cylindric, including setting up first barrel and set up in the second barrel of first barrel below, the diameter of second barrel is greater than the diameter of first barrel, press the head can along first barrel slides on vertical direction, the medial surface of second barrel is equipped with the screw thread that is used for connecting the stock solution bottle.

Furthermore, a rubbing net used for enabling foams to be more cotton and dense is arranged in the foam channel, the top of the rubbing net is designed to be a rounded angle, and the separation position of the liquid pump chamber and the air pump chamber is designed to be a rounded angle.

Furthermore, the foam pump with the hairbrush is also provided with a dust cover for preventing the hairbrush from being polluted, and the dust cover comprises a wrapping part sleeved outside the hairbrush and a clamping part for preventing the press head from being pressed downwards.

Furthermore, the cross section of the clamping portion is C-shaped, the clamping portion can be sleeved outside the first barrel, two grabbing plates used for opening the clamping portion are arranged on the side wall of the outer portion of the clamping portion, and the two grabbing plates are arranged on the opposite sides of the opening of the clamping portion and symmetrically arranged along the central line of the dust cover.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses a take foam pump of brush, including the shell, set up in the button and the pump main part at shell top, the button is equipped with the foam passageway, pump main part and foam passageway intercommunication form liquid outlet channel, button exit is provided with the brush, the pump main part includes the cylinder, air pump piston and liquid pump piston assembly that are fixed in the inboard lower extreme of shell, the cylinder is cut apart by liquid pump piston assembly with the air pump piston and is formed air pump chamber and liquid pump chamber, when the button is pressed, drive air pump piston and liquid pump piston assembly and slide downwards; the brush and the press head are also provided with a liquid outlet cover, the brush is provided with a plurality of liquid outlets, a plurality of rectangular bristles and a plurality of cylindrical bristles, the rectangular bristles are arranged around the edge of the brush at intervals, and the cylindrical bristles are arranged in the middle of the rectangular bristles. This scheme is through pressing the head to increase the brush, can directly extrude the foam from the liquid outlet of brush and prevent that the foam from spilling over the brush through the rectangle brush hair on the brush during use, and the foam combines brush direct action face at last, can reach better clean effect, and consumer experiences better.

Drawings

FIG. 1 is a schematic structural view of a preferred embodiment of a foam pump with a hairbrush according to the present invention;

FIG. 2 is a schematic diagram of the chamber of a preferred embodiment of the bristled foam pump of the present invention;

FIG. 3 is a cross-sectional view of a preferred embodiment of the bristled foam pump of the present invention;

FIG. 4 is a schematic structural view of a preferred embodiment of the housing of the present invention;

fig. 5 is a schematic structural view of a preferred embodiment of the housing of the present invention from another perspective;

FIG. 6 is a schematic structural view of a preferred embodiment of the air pump piston of the present invention;

fig. 7 is a schematic structural view of a preferred embodiment of the cylinder of the present invention;

FIG. 8 is a schematic structural view of a preferred embodiment of the ring blade of the present invention;

FIG. 9 is a schematic structural view of a preferred embodiment of a dust cap of the present invention;

FIG. 10 is a schematic view of the structure of a preferred embodiment of the brush of the present invention;

fig. 11 is a front view of a preferred embodiment of the brush of the present invention.

In the figure: 100. a foam pump with a brush; 1. a housing; 11. a first cylinder; 12. a second cylinder; 13. a limiting plate; 14. a thread; 2. pressing the head; 21. a foam channel; 22. rubbing the net; 3. a pump body; 31. a cylinder; 311. projecting the bone site; 32. an air pump piston; 321. air holes; 322. an annular blade; 3221. an outer ring; 3222. an inner ring; 33. a liquid pump piston assembly; 331. a liquid pump sleeve; 332. a friction seat; 333. a liquid pump piston; 334. a spring; 335. glass; 4. a gas pump chamber; 5. a liquid pump chamber; 6. a gas-liquid mixing chamber; 7. a dust cover; 71. a wrapping section; 72. a clamping portion; 73. grabbing a plate; 8. a brush; 81. rectangular bristles; 82. cylindrical bristles; 83. a liquid outlet; 9. and (4) discharging the liquid to the liquid cover.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

The utility model discloses a take foam pump 100 of brush is as shown in fig. 1-11, including shell 1, set up in press head 2 and the pump main part 3 at shell 1 top, press head 2 is equipped with foam channel 21, pump main part 3 and foam channel 21 intercommunication form liquid outlet channel, press head 2 exit is provided with brush 8, pump main part 3 is including being fixed in cylinder 31, air pump piston 32 and the liquid pump piston assembly 33 of shell 1 inboard lower extreme, cylinder 31 and air pump piston 32 are cut apart by liquid pump piston assembly 33 and are formed air pump chamber 4 and liquid pump chamber 5, when pressing head 2, drive air pump piston 32 and liquid pump piston assembly 33 and slide downwards; the outlet of the brush 8 and the outlet of the press head 2 are also provided with a liquid outlet cover 9, the brush 8 is provided with a plurality of liquid outlets 83, a plurality of rectangular bristles 81 and a plurality of cylindrical bristles 82, the rectangular bristles 81 are arranged around the edge of the brush 8 at intervals, and the cylindrical bristles 82 are arranged in the middle of the rectangular bristles 81. This scheme is through having increased brush 8 according to head 2, can directly extrude the foam from the liquid outlet 83 of brush 8 during the use and prevent that the foam from spilling over brush 8 through rectangle brush hair 81 on brush 8, and the foam combines 8 direct action of brush on the face at last, can reach better clean effect, and consumer experiences better.

In this embodiment, the button 2 is provided with a foam passage 21, the top of the rubbing net 22 is rounded, and the separation part between the liquid pump chamber 5 and the air pump chamber 4 is rounded. This scheme is through the aforesaid setting, and the design of radius angle is adopted at net 22 top of rubbing, and liquid pump room 5 adopts the design of radius angle with the partition department of gas pump room 4 for net 22 of rubbing is gone into when foam channel 21 and liquid pump piston assembly 33 automatic installation income liquid pump room 5 of press head 2 in the automatic installation, and it is more convenient to fix a position, and it is more convenient to install, has accelerated work efficiency.

In this embodiment, the liquid pump piston assembly 33 includes a liquid pump sleeve 331 disposed on the air pump piston 32 and movable along the inner wall of the liquid pump chamber 5, a friction seat 332 disposed at the bottom inside the liquid pump chamber 5, a liquid pump piston 333 nested in the liquid pump sleeve 331 and having a lower end movable along the inside of the friction seat 332, a spring 334 sleeved outside the liquid pump piston 333, and a glass 335 disposed at the bottom of the liquid pump chamber 5, wherein an upper end of the spring 334 abuts against the bottom of the liquid pump sleeve 331, a lower end thereof is connected to the bottom of the friction seat 332, the liquid pump sleeve 331, the liquid pump piston 333, and the air pump piston 32 form a gas-liquid mixing chamber 6, and the liquid pump chamber 5, the liquid pump sleeve 331, and the air pump piston 32 are sequentially communicated to form the liquid outlet passage. When the press head 2 is pressed downwards by pressure, the bottom of the press head 2 is abutted against the top of the air pump piston 32, the air pump piston 32 is pressed downwards, at the moment, the air pump piston 32 drives the liquid pump sleeve 331 and the liquid pump piston 333 to slide downwards together, the liquid pump sleeve 331 is tightly attached to the liquid pump chamber 5 to move downwards, the liquid pump piston 333 also moves downwards in the liquid pump chamber 5, the liquid pump piston and the liquid pump piston extrude the liquid in the liquid pump chamber 5 downwards, at the moment, the glass 335 is abutted against the lower outlet of the liquid pump chamber 5, the liquid cannot flow out from the outlet of the lower liquid pump chamber 5, the liquid in the liquid pump chamber 5 can only flow upwards in a gap between the liquid pump sleeve 331 and the liquid pump piston 333 along with extrusion, then the liquid pump sleeve 331 is jacked up under the action force of the spring 334, at the moment, the liquid pump piston 333 is also jacked up by the liquid pump sleeve 331, at the same time, the air pressure in the liquid pump chamber 5 is increased, at the moment, the glass 335 is not abutted against the lower outlet of the liquid pump chamber 5 by the atmospheric pressure, the liquid in the container also enters the liquid pump chamber 5 under the atmospheric pressure, and a liquid pumping process is completed.

In this embodiment, the air pump piston 32 is provided with a plurality of air holes 321 for air to enter the air pump chamber 4, the top of the air pump piston is further provided with an annular blade 322, the annular blade 322 is made of an elastic material, and the annular blade 322 is provided with an outer ring 3221 for blocking air from leaking out of the air pump chamber 4 and an inner ring 3222 for preventing the liquid in the air-liquid mixing chamber 6 from flowing into the air pump chamber 4. When the press head 2 is pressed downwards under pressure, the bottom of the press head 2 is abutted against the top of the air pump piston 32, the air pump piston 32 is pressed downwards, at the moment, the air pump piston 32 slides downwards along the inner wall of the air cylinder 31, air firstly enters the liquid pump chamber 5 and then extrudes the glass 335 at the lower end, then the annular blade 322 is impacted, the inner ring 3222 of the annular blade 322 is impacted by the air in the air pump chamber 4 to generate a gap, and the air is discharged into the gas-liquid mixing chamber 6 along with the gap, the liquid pump housing 331 is then lifted up by the expanding elastic force of the spring 334, meanwhile, the air pump piston 32 is also lifted upwards, the air pump piston 32 continues to lift upwards along the inner wall of the air pump chamber 4, external air impacts the annular blade 322 from the air hole 321, a certain gap is formed between the annular blade 322 and the air cylinder 31, and the air enters the air pump chamber 4 through the gap, so that one flow of the air pump is completed.

For the generation of foam, liquid and air are mixed to form, for this, in addition to the design of the liquid pump chamber 5 and the air pump chamber 4, an air-liquid mixing chamber 6 is also designed in this embodiment, the air-liquid mixing chamber 6 is formed by assembling the liquid pump sleeve 331, the liquid pump piston 333 and the air pump piston 32, and is located on the top of the air pump piston 32, and the air-liquid mixing chamber 6 is communicated with the liquid outlet passage and the foam passage 21 of the plunger 2. Through the above arrangement, the external gas can enter the gas pump chamber 4 through the gas hole 321, the gas in the gas pump chamber 4 enters the gas-liquid mixing chamber 6 through the gap between the liquid pump sleeve 331 and the liquid pump piston 32, the liquid in the liquid pump chamber 5 can enter the gas-liquid mixing chamber 6 through the gap between the liquid pump sleeve 331 and the liquid pump piston 333, the gas and the liquid are mixed to form foam, and the foam flows out through the foam passage 21 and the foam outlet nozzle of the button head 2.

The cylinder 31 in this embodiment is in the form of an inverted hollow stepped cylinder, the diameter of the air pump chamber 4 is larger than the diameter of the liquid pump chamber 5, and the connecting end of the liquid pump chamber 5 and the air pump chamber 4 is recessed toward the inside of the air pump chamber 4. The volume of the gas pump chamber 4 is larger than that of the liquid pump chamber 5, so that higher pressure is provided when gas and liquid are extruded, gas and liquid can enter the gas-liquid mixing chamber 6, and foam is generated.

In this embodiment, the top level of air pump chamber 4 outwards extends a ring, be equipped with a plurality of groups protrusion bone position 311 on the ring, shell 1 corresponds the ring installation department is equipped with a plurality of limiting plates 13, the side of limiting plate 13 with protrusion bone position 311 contacts in order to restrict take place to rotate between shell 1 and the cylinder 31, a plurality of limiting plate 13 annular interval set up in shell 1 is inboard. In the arrangement, when the housing 1 and the cylinder 31 rotate, the side surfaces of the limiting plates 13 contact with the protruding bone positions 311 to block the relative rotation of the two, in this embodiment, two protruding bone positions 311 are arranged in parallel at intervals, and the protruding bone positions 311 are arranged on the ring at four groups and all arranged at annular intervals. The number of the convex bone positions 311 contacting the limiting plate 13 is more by arranging more convex bone positions 311, the separating force is larger, and the shell 1 and the cylinder 31 are not easy to loosen due to mutual rotation.

The housing 1 in this embodiment is a hollow stepped cylinder, and includes a first cylinder 11 and a second cylinder 12 disposed below the first cylinder 11, and a diameter of the second cylinder 12 is larger than a diameter of the first cylinder 11. Simultaneously the medial extremity of second barrel 12 is equipped with screw thread 14 that is used for connecting the liquid storage bottle, is mainly used for being connected with the liquid storage bottle, and second barrel 12 diameter is greater than the bottleneck that the liquid storage bottle can be ensured to the diameter of first barrel 11 is great, and the upper end is little, and is more pleasing to the eye in the outward appearance.

The press head 2 in this embodiment can slide along the first barrel 11 in the vertical direction, wherein the press head 2 is sleeved outside the first barrel 11, that is, the lower end of the press head 2 is also a hollow cylinder, and the diameter is larger than that of the first barrel 11. Meanwhile, since the upper end surface of the button 2 in this embodiment is an inclined surface, a problem of slipping may occur when a user presses the button, and for this reason, the button 2 is provided with an anti-slip stripe for enhancing a friction force in this embodiment. The problem of slippage of the button 2 can be avoided, and the comfort of use of the user is increased.

As is well known, in actual use, the brush 8 is used to directly contact with the skin of a consumer and combine with cosmetics such as facial cleanser to achieve the effect of cleaning and caring the skin, and the cleaning degree of the brush 8 has a direct influence on the physical health of the consumer. When the consumer finishes cleaning the face, the cosmetics are usually cleaned and stored, and in this case, the brush 8 on the foam pump is easily polluted by the outside if not protected; in this regard, the brush-equipped foam pump 100 of the present embodiment is further provided with a dust cover 7 for preventing the brush 8 from being contaminated, and the dust cover 7 includes a wrapping portion 71 covering the brush 8 and a clamping portion 72 for preventing the pressing head 2 from being pressed downward. The whole brush 8 is wrapped by the wrapping part 71, so that the brush 8 is not in direct contact with an external pollution source, and the brush 8 is ensured to keep clean; meanwhile, the clamping part 72 can avoid the problem that the liquid is wasted due to the fact that the press head 2 is pressed carelessly.

Preferably, the cross section of the clamping portion 72 is C-shaped, and when it is necessary to prevent the pressing of the press head 2, the clamping portion 72 is only required to be sleeved outside the first cylinder 11, and at this time, the top of the clamping portion 72 abuts against the bottom of the press head 2, and the bottom of the clamping portion 72 directly abuts against the housing 1, thereby blocking the pressing operation of the press head 2.

Preferably, the outer side wall of the clamping portion 72 is provided with two grabbing plates 73 for opening the clamping portion 72, the two grabbing plates 73 are symmetrically arranged along the center line of the dust cover 7 and are arranged on the other side of the opening of the clamping portion 72, and the grabbing plates 73 are further provided with anti-slip stripes for increasing friction force, when a consumer wants to use the device, the consumer can press the two grabbing plates 73 respectively through two fingers and make the two grabbing plates 73 approach each other with force, and then move in a direction away from the housing 1, so that the dust cover 7 can be detached from the foam pump.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims (10)

1. Take foam pump of brush, its characterized in that: the pump body comprises an air cylinder, an air pump piston and a liquid pump piston assembly which are fixed at the lower end of the inner side of the shell, the air cylinder and the air pump piston are divided by the liquid pump piston assembly to form an air pump chamber and a liquid pump chamber, and the air pump piston and the liquid pump piston assembly are driven to slide downwards when the press head is pressed; the brush is provided with a plurality of liquid outlets, a plurality of rectangular bristles and a plurality of cylindrical bristles, the rectangular bristles are arranged around the edge of the brush at intervals, and the cylindrical bristles are arranged in the middle of the rectangular bristles.

2. The foam pump with brush as set forth in claim 1, wherein: liquid pump piston assembly including set up in the air pump piston and can along the liquid pump cover that the indoor wall of liquid pump removed, set up in the indoor bottom of liquid pump the seat that rubs, nested in the liquid pump cover and lower extreme can along the liquid pump piston, the suit that the inside of seat that rubs removed can the outside spring of liquid pump piston and set up in the glass of liquid pump chamber bottom, the spring upper end with the bottom butt of liquid pump cover, the lower extreme with the bottom of the seat that rubs is connected, liquid pump cover, liquid pump piston with the air pump piston forms the gas-liquid mixing chamber, liquid pump cover, air pump piston, the net that rubs and according to the head intercommunication formation in proper order go out liquid passageway.

3. The foam pump with brush as set forth in claim 2, wherein: the air pump is characterized in that the air pump piston is provided with a plurality of air holes for air to enter the air pump chamber, the top of the air pump piston is also provided with annular blades, the annular blades are made of elastic materials, and the annular blades are provided with outer rings for blocking air from leaking out of the air pump chamber and inner rings for preventing liquid in the gas-liquid mixing chamber from flowing into the air pump chamber.

4. The foam pump with brush as set forth in claim 1, wherein: the cylinder is in an inverted hollow stepped cylindrical shape, the diameter of the air pump chamber is larger than that of the liquid pump chamber, and the connecting end of the liquid pump chamber and the air pump chamber is sunken towards the inner side of the air pump chamber.

5. The foam pump with brush as set forth in claim 1, wherein: the top of air pump room outwards extends a ring, be equipped with a plurality of groups protrusion bone position on the ring, the shell corresponds ring installation department is equipped with a plurality of limiting plates, the side of limiting plate with protrusion bone position contact is in order to restrict take place to rotate between shell and the cylinder, a plurality of limiting plate annular interval set up in the shell is inboard.

6. The foam pump with brush as set forth in claim 5, wherein: and two of the convex bone positions are arranged in parallel at intervals, and the convex bone positions are arranged on the circular ring at intervals in four groups.

7. The foam pump with brush as set forth in claim 1, wherein: the shell is that the cavity ladder is cylindric, including setting up first barrel and set up in the second barrel of first barrel below, the diameter of second barrel is greater than the diameter of first barrel, press the head can along first barrel slides on vertical direction, the medial surface of second barrel is equipped with the screw thread that is used for connecting the stock solution bottle.

8. The foam pump with brush as set forth in claim 1, wherein: the foam pump is characterized in that a rubbing net used for enabling foam to be more cotton and dense is arranged in the foam channel, the top of the rubbing net is designed to be a rounded angle, and the separation position of the liquid pump chamber and the air pump chamber is designed to be a rounded angle.

9. The hairbrush foam pump as recited in claim 7, wherein: the foam pump with the brush is further provided with a dust cover for preventing the brush from being polluted, and the dust cover comprises a wrapping part sleeved outside the brush and a clamping part for preventing the press head from being pressed downwards.

10. The foam pump with brush as set forth in claim 9, wherein: the cross-section of clamping part is the C style of calligraphy, clamping part can be located the outside of first barrel, the outside lateral wall of clamping part is equipped with two and is used for opening the board of grabbing of clamping part, two grab the board setting the opposite side of clamping part open-ended and along the central line symmetry setting of dust cover.

Images