CN217830069U

CN217830069U - Hand-held type safety liquid filler

Info

Publication number: CN217830069U
Application number: CN202220825356.9U
Authority: CN
Inventors: 王柳玲; 李志鹏; 陈疏影; 李金城; 陈梓莹; 彭小佳
Original assignee: Guangzhou Examination Detection Authentication Group Co ltd
Current assignee: Guangzhou Examination Detection Authentication Group Co ltd
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2022-11-18
Anticipated expiration: 2032-04-11

Abstract

The utility model discloses a hand-held safe liquid charger, which comprises a liquid feeding bottle for containing liquid, a liquid feeding pipe arranged at one side of the middle part of the liquid feeding bottle, a liquid suction assembly vertically arranged in the liquid feeding bottle, a driving assembly for providing power for the liquid suction assembly, and a transmission assembly in transmission connection with the driving assembly and the liquid suction assembly; the driving assembly, the transmission assembly and the imbibition assembly are coaxially arranged in the fluid feeding bottle, and the driving assembly drives the transmission assembly and drives the imbibition assembly to imbibe towards the bottom of the fluid feeding bottle. The driving component of the utility model drives the transmission component and the liquid absorbing component in turn to absorb liquid to the bottom of the liquid adding bottle, the liquid flux in the liquid adding component keeps equal, and the liquid amount is controlled accurately; the liquid flux is small, the liquid feeding speed can be regulated, splashing is not generated during injection, and the safety coefficient is high.

Description

Hand-held type safety liquid filler

Technical Field

The utility model relates to a liquid filler technical field mainly relates to a hand-held type safety liquid filler.

Background

Bottleneck knockout device is the common equipment in laboratory, and current bottleneck knockout most are used with the supporting of screw mouth glass bottle of different volumes, and the whole equipment is inconvenient to be removed, needs to put fixed experiment operation panel and uses. According to the standard in environmental analysis field, when determining partial index such as COD, need add concentrated sulfuric acid to COD backward flow thorn shape condenser pipe among the sample pretreatment process, and COD backward flow thorn shape condenser pipe is placed on the automatic appearance of dispelling of COD tradition backward flow, and the whole equipment should not remove at the fume hood test bench.

COD backward flow thorn shape condenser pipe is from ground surface to be more than 80cm, because traditional bottleneck knockout need be fixed on the laboratory bench, and hold in the knockout and adorn solution concentrated sulfuric acid and have extremely strong corrosivity, when using bottleneck knockout device to add concentrated sulfuric acid in the COD backward flow thorn shape condenser pipe under the normal conditions, need follow the knockout earlier and get sour, later shift the concentrated sulfuric acid to thorn type condenser pipe top, middle transfer process not only has the risk that concentrated acid splashes, and reduced test efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a hand-held type safe liquid filler that liquid control is accurate, factor of safety is high is provided.

The utility model discloses the technical problem that will solve can adopt following technical scheme to realize:

a hand-held safe liquid charger is characterized by comprising a liquid feeding bottle for containing liquid, a liquid feeding pipe arranged on one side of the middle part of the liquid feeding bottle, a liquid suction assembly vertically arranged in the liquid feeding bottle, a driving assembly for providing power for the liquid suction assembly, and a transmission assembly in transmission connection with the driving assembly and the liquid suction assembly; the driving assembly, the transmission assembly and the imbibition assembly are coaxially arranged in the fluid feeding bottle, and the driving assembly drives the transmission assembly and drives the imbibition assembly to imbibe towards the bottom of the fluid feeding bottle.

In a preferred embodiment of the present invention, the liquid suction assembly comprises a liquid suction cylinder with a top end fixed and sealed at the inner middle part of the liquid feeding bottle, a piston with a periphery closely matched with the inner wall of the liquid suction cylinder, and a piston rod fixedly arranged at the upper end of the piston; the periphery of the top end of the liquid suction cylinder separates the liquid feeding bottle from the liquid feeding pipe, the top end of the liquid suction cylinder is not higher than the highest point of a pipe orifice of the liquid feeding pipe, and the bottom end of the liquid suction cylinder extends into the bottom of the liquid feeding bottle;

a liquid suction port is formed in one side of the bottom of the liquid suction cylinder, and the distance from the lowest end of the liquid suction port to the bottom end of the liquid suction cylinder is not less than the thickness of the piston; the piston rod drives the piston to slide upwards along the inner wall of the liquid suction cylinder, liquid in the liquid suction cylinder is pushed out of the liquid adding pipe, the piston rod drives the piston to slide downwards along the inner wall of the liquid suction cylinder, and the liquid in the liquid suction cylinder and the liquid level in the liquid adding bottle are on the same horizontal plane.

In a preferred embodiment of the present invention, the driving assembly includes a driving motor disposed at the inner top of the liquid feeding bottle, and the transmission assembly includes a lead screw connected to an output shaft of the driving motor in a transmission manner, and a nut sleeved on an outer annular surface of the lead screw in a transmission manner; the driving motor drives the lead screw to rotate through the bearing, the nut converts the rotary motion of the lead screw into linear motion in the vertical direction, and the nut drives the piston rod to vertically and upwards add liquid or vertically and downwards reset liquid.

In a preferred embodiment of the utility model, a hand-held hole is arranged at one side of the lower part of the liquid feeding bottle, and a control component is arranged at the upper corner of the hand-held hole; the control component comprises a liquid feeding button with a horizontally arranged axle center, a liquid return button with an axle center vertically arranged at the upper right part of the liquid feeding button, a push rod with a reversed L-shaped longitudinal section and a rotating shaft for hinging and fixing the right angle part of the push rod on the liquid feeding bottle; the push rod is pushed rightwards, and the liquid adding button is pressed, so that the output shaft of the driving motor rotates clockwise, and the piston moves upwards to absorb liquid; the push rod is pushed leftwards, and then the liquid return button is pressed, so that the output shaft of the driving motor rotates anticlockwise, and the piston moves downwards to return liquid.

In a preferred embodiment of the present invention, an overflow valve is disposed at the opening of the filling pipe.

In a preferred embodiment of the utility model, a hose that can 360 degrees buckles is provided with between the mouth of pipe of liquid feeding pipe and the liquid feeding bottleneck, buckles the hose, makes the liquid feeding pipe downward sloping setting, inclination is 0-90 degrees.

The beneficial effects of the utility model are that: a hand-held safe liquid filler is characterized in that a driving assembly is arranged in a liquid filling bottle and sequentially drives a transmission assembly and a liquid suction assembly to suck liquid to the bottom of the bottle, the liquid flux in the liquid filling assembly keeps equal, and the liquid amount is accurately controlled; the liquid flux is small, the liquid feeding speed can be regulated, splashing is not generated during injection, and the safety coefficient is high.

Drawings

Fig. 1 is a schematic structural view of a hand-held safety liquid filler of the present invention.

Figure 2 is a schematic diagram of the structure of the wicking assembly and the drive assembly of the present invention.

Fig. 3 is a schematic structural diagram of the control assembly of the present invention.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.

Referring to fig. 1 to 2, a hand-held safe liquid charger is shown, which comprises a liquid feeding bottle 110 for containing liquid, a liquid feeding tube 120 arranged at one side of the middle part of the liquid feeding bottle 110, a liquid sucking assembly 200 vertically arranged in the liquid feeding bottle 110, a driving assembly 300 for providing power for the liquid sucking assembly 200, and a transmission assembly 400 for drivingly connecting the driving assembly 300 and the liquid sucking assembly 200; the driving component 300, the transmission component 400 and the imbibing component 200 are coaxially arranged in the liquid adding bottle 110, and the driving component 300 drives the transmission component 400 and drives the imbibing component 200 to imbibe towards the bottom of the liquid adding bottle 110. The outer surface of the liquid adding bottle 110 is provided with capacity scale marks, and the scale range value of the capacity scale marks is 0-100ml; the liquid feeding bottle 110 can contain corrosive liquid. The driving component 300 is arranged in the liquid adding bottle 110 to sequentially drive the transmission component 400 and the liquid absorption component 200 to absorb liquid to the bottle bottom, the liquid flux in the liquid adding component 200 is kept equal, and the liquid amount is accurately controlled; the liquid flux is small, the liquid feeding speed can be regulated, splashing is not generated during injection, and the safety coefficient is high.

The liquid outlet of the filling tube 120 is provided with a screwing cap which seals the filling tube 120 when no filling is needed. A hose 130 capable of being bent by 360 degrees is arranged between the opening of the liquid feeding pipe 120 and the opening of the liquid feeding bottle 110, and the hose 130 is bent to enable the liquid feeding pipe 120 to be arranged in a downward inclined mode, wherein the inclined angle is 0-90 degrees; the end of the liquid feeding pipe 120 is close to the pipe orifice of the air-cooled condenser pipe or the water-cooled condenser pipe, and the liquid flows down along the inner wall of the condenser pipe, so that splashing is not generated during injection, and the safety factor is high.

An overflow valve 121 or a reflux valve is arranged at the nozzle of the liquid feeding pipe 120, and when the pressure in the liquid feeding bottle is overlarge, the valve of the overflow valve 121 is automatically opened to release the pressure properly.

The liquid suction assembly 200 comprises a liquid suction cylinder 210 with the top end fixedly sealed at the inner middle part of the liquid feeding bottle 110, a piston 220 with the periphery closely matched with the inner wall of the liquid suction cylinder 210, and a piston rod 230 fixedly arranged at the upper end of the piston 220; the periphery of the top end of the liquid suction cylinder 210 separates the liquid feeding bottle 110 from the liquid feeding tube 120, the top end of the liquid suction cylinder 210 is not higher than the highest point of the tube mouth of the liquid feeding tube 120, and the bottom end of the liquid suction cylinder 210 extends into the bottom of the liquid feeding bottle 110. A liquid suction port 240 is arranged on one side of the bottom of the liquid suction cylinder 210, and the distance from the lowest end of the liquid suction port 240 to the bottom end of the liquid suction cylinder 210 is not less than the thickness of the piston 220; an electromagnetic valve 241 is provided at the liquid suction port 240. The piston rod 230 drives the piston 220 to slide upwards along the inner wall of the liquid suction tube 210, the liquid in the liquid suction tube 210 is pushed out of the liquid feeding tube 120, the piston rod 230 drives the piston 220 to slide downwards along the inner wall of the liquid suction tube 210, and the liquid in the liquid suction tube 210 and the liquid level in the liquid feeding bottle 110 are on the same horizontal plane.

The distance is arranged between the bottom end of the liquid suction cylinder 210 and the bottom end of the interior of the liquid feeding bottle 110, so that the phenomenon that the bottom of the liquid feeding bottle is burst due to overlarge pressure at the bottom of the liquid suction cylinder is avoided. The whole liquid suction cylinder 210 is made of transparent materials, liquid suction scale marks are arranged on the liquid suction cylinder 210, the scale range of the liquid suction scale marks is 0-20ml, and liquid adding amount can be conveniently observed at any time; when more liquid is added to the external condensation pipe, the upper end face of the piston is pushed to a certain scale mark, and the liquid adding amount is accurate. Through the required liquid of piston ration extraction, liquid measure control is accurate, and the flow is little can not produce and splash, and factor of safety is high.

The driving assembly 300 comprises a driving motor 310 arranged at the inner top of the liquid feeding bottle 110, and the transmission assembly 400 comprises a lead screw 410 in transmission connection with an output shaft of the driving motor 310 and a nut 420 in transmission sleeved on the outer annular surface of the lead screw 410; the driving motor 410 drives the lead screw 410 to rotate through the bearing 420, the nut 420 converts the rotation motion of the lead screw 410 into a linear motion in the vertical direction, and the nut 420 drives the piston rod 230 to perform liquid feeding vertically upwards or perform liquid resetting vertically downwards. The driving motor 310 may be disposed at the outer top of the liquid feeding bottle 110; the piston rod 230 has a hollow interior for receiving the nut 420 and the lower portion of the screw 410, and the inner circumferential surface of the piston rod 230 is fixedly disposed on the outer circumferential surface of the nut 420.

Referring to fig. 3, a holding hole 140 is formed at one side of the lower portion of the liquid feeding bottle 110, an arc partition is formed at the upper right corner of the holding hole 140, and a pressing portion of the push rod 530 is exposed between the holding hole 140 and the arc partition; the control assembly 500 is disposed at the upper corner of the hand-held hole 140, and the control assembly 500 includes a liquid feeding button 510 with a horizontal axis, a liquid returning button 520 with a vertical axis disposed at the upper right of the liquid feeding button 510, a push rod 530 with a vertical section in a shape of inverted L, and a rotating shaft 540 for fixing the right-angled position of the push rod 530 on the liquid feeding bottle 110. Pushing the push rod 530 to the right and further pressing the liquid adding button 510, so that the output shaft of the driving motor 310 rotates clockwise and the piston 220 moves upwards to absorb liquid; pushing the push rod 530 to the left and pressing the liquid return button 520 causes the output shaft of the driving motor 310 to rotate counterclockwise and the piston 220 to move downward for liquid return.

The utility model discloses a basic operating principle does:

firstly, waiting for the liquid suction barrel 210 to reach the approximate value of the required liquid adding amount, and remotely controlling to close the electromagnetic valve 241 at the liquid suction port 240; continuously pressing the push rod 530 to the right, driving the motor 310 to drive the piston 220 to slide upwards, and slowly pushing the sulfuric acid liquid in the liquid suction cylinder 210 outwards the liquid feeding pipe 120; the liquid is not loosened until the upper end surface of the piston 220 is flush with the approximate numerical scale mark, the hose 130 and the liquid feeding pipe 120 are bent downwards and inclined downwards by 10 degrees, the valve of the overflow valve 121 is opened, and a small amount of liquid on the upper end surface of the piston 220 completely flows out of the liquid feeding pipe 120 under the action of gravity. Specifically, in order to prevent the liquid in the liquid bottle 110 from flowing out of the liquid feeding tube 120 too quickly to cause splashing, the liquid feeding tube 120 is horizontally placed during liquid feeding; when the upper end face of the piston 220 is flush with the nozzle of the filling pipe 120, the hose 130 is bent downwards to be inclined by about 10 degrees, so that the finally remained liquid can naturally flow out under the action of the gravity of the last remained liquid, and the filling amount is accurate. In order to prevent the negative pressure generated in the liquid feeding bottle 110 when the piston 220 slides upwards, a pressure relief valve 111 which can be closed or opened is arranged at the shoulder of the liquid feeding bottle 110, and the pressure relief valve is in an open state when liquid is fed and is in a closed state when liquid is not fed.

Then remotely controlling to open the electromagnetic valve 241 at the liquid suction port 240 and open the valve of the overflow valve 121; continuously pressing the push rod 530 leftwards, the driving motor 310 drives the piston 220 to slide downwards to the lower part of the liquid suction port 240, and the sulfuric acid liquid in the liquid suction cylinder 210 slowly flows back; the operation is repeated until the required liquid adding amount is reached. Finally, when the liquid in the liquid adding bottle 110 is lower than the liquid sucking port 240, the liquid cannot be added to the external container; the driving component 300, the transmission component 400, the imbibing component 200 and the filling pipe 120 are disassembled from the filling bottle 110, and the residual liquid is contained in a clean container; the driving assembly 400, the liquid suction assembly 200, the liquid feeding bottle 110 and the liquid feeding tube 120 are respectively and independently cleaned, wherein the liquid suction assembly 200 can be manually pushed and pulled to clean.

The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents.

Claims

1. A hand-held safe liquid charger is characterized by comprising a liquid feeding bottle for containing liquid, a liquid feeding pipe arranged on one side of the middle part of the liquid feeding bottle, a liquid suction assembly vertically arranged in the liquid feeding bottle, a driving assembly for providing power for the liquid suction assembly, and a transmission assembly in transmission connection with the driving assembly and the liquid suction assembly; the driving assembly, the transmission assembly and the imbibition assembly are coaxially arranged in the fluid feeding bottle, and the driving assembly drives the transmission assembly and drives the imbibition assembly to imbibe towards the bottom of the fluid feeding bottle.

2. The hand-held safe liquid charger according to claim 1, wherein said liquid suction assembly comprises a liquid suction cylinder with a top end fixedly sealed at the inner middle part of said liquid feeding bottle, a piston with an outer periphery closely matched with the inner wall of said liquid suction cylinder, and a piston rod fixedly arranged at the upper end of said piston; the periphery of the top end of the liquid suction cylinder separates the liquid feeding bottle from the liquid feeding pipe, the top end of the liquid suction cylinder is not higher than the highest point of a pipe orifice of the liquid feeding pipe, and the bottom end of the liquid suction cylinder extends into the bottom of the liquid feeding bottle;

3. The hand-held safe liquid charger according to claim 2, wherein the driving assembly comprises a driving motor arranged at the inner top of the liquid charging bottle, and the transmission assembly comprises a lead screw in transmission connection with an output shaft of the driving motor and a nut in transmission fit with the outer ring surface of the lead screw; the driving motor drives the lead screw to rotate through a bearing, the nut converts the rotary motion of the lead screw into linear motion in the vertical direction, and the nut drives the piston rod to vertically and upwards add liquid or vertically and downwards reset liquid.

4. The hand-held safe liquid charger of claim 3, wherein a hand-held hole is arranged at one side of the lower part of the liquid charging bottle, and a control component is arranged at the upper corner of the hand-held hole; the control component comprises a liquid feeding button with a horizontally arranged axle center, a liquid returning button with an axle center vertically arranged at the upper right part of the liquid feeding button, a push rod with a reversed L-shaped longitudinal section and a rotating shaft for hinging and fixing the right angle part of the push rod on the liquid feeding bottle; the push rod is pushed rightwards, and the liquid adding button is pressed, so that the output shaft of the driving motor rotates clockwise, and the piston moves upwards to absorb liquid; the push rod is pushed leftwards, and then the liquid return button is pressed, so that the output shaft of the driving motor rotates anticlockwise, and the piston moves downwards to return liquid.

5. The hand-held safe liquid filler of claim 4, wherein an overflow valve is provided at the mouth of the filler tube.

6. The hand-held safe liquid filler according to claim 5, wherein a flexible tube capable of bending 360 degrees is arranged between the mouth of the liquid filling pipe and the mouth of the liquid filling bottle, and the flexible tube is bent to enable the liquid filling pipe to be arranged in a downward inclined mode, wherein the inclination angle is 0-90 degrees.