CN209934764U - Laboratory wash-bottle - Google Patents
Laboratory wash-bottle Download PDFInfo
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- CN209934764U CN209934764U CN201920615225.6U CN201920615225U CN209934764U CN 209934764 U CN209934764 U CN 209934764U CN 201920615225 U CN201920615225 U CN 201920615225U CN 209934764 U CN209934764 U CN 209934764U
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- air inlet
- water outlet
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- pipe
- cover
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Abstract
The utility model discloses a laboratory wash-bottle. The method comprises the following steps: a barrel body, the upper part of which is provided with an air inlet and a water outlet; the air inlet cover is detachably connected with the air inlet; the inflating device is connected with the air inlet cover; the water outlet cover is detachably connected with the water outlet; the water outlet device is connected with the water outlet cover and is used for leading out water in the barrel body; flanges extending towards the interior of the barrel body are respectively arranged on the lower edges of the mouth necks of the air inlet and the water outlet; the inner end faces of the air inlet cover and the water outlet cover are respectively provided with a sealing boss matched with the inner diameters of the air inlet and the water outlet, the lower end of the sealing boss is provided with a periphery extending outwards, the periphery is provided with a groove matched with the flange, the sealing boss is made of an elastic material, and the sealing boss is provided with an axial wedge-shaped opening. The utility model has the advantages that: the spraying device has good air tightness, can ensure stable outflow of water flow, and has good spraying effect.
Description
Technical Field
The utility model relates to a laboratory device, in particular to be used for laboratory wash-bottle.
Background
Wash bottles are containers used in chemical laboratories for holding cleaning solutions and are equipped with devices for emitting a fine liquid stream. Both blow-out and extrusion types are commonly used. The blowing-out type consists of a flat-bottom glass flask, a bottle mouth device, a short air blowing pipe and a long water outlet pipe; the extrusion type comprises a plastic narrow-mouth bottle and a water outlet pipe of a bottle mouth device. Wash bottles are used for quantitative transfer of solutions and washing and transfer of precipitates. Economic wash bottles (500 ml commonly used), safe wash bottles (distilled water wash bottles, toluene wash bottles, ethanol wash bottles, methanol wash bottles, acetone wash bottles, isopropanol wash bottles, sodium hypochlorite wash bottles), solvent-resistant wash bottles, and plastic wash bottles (red) (namely red mouth wash bottles).
The existing washing bottle has the following defects that firstly, at least one washing bottle opening is usually arranged at the upper part of the washing bottle, a washing bottle cover is arranged at the washing bottle opening, and the washing bottle cover and the washing bottle are only connected through threads, so that the air tightness and the firmness are poor; secondly, the existing wash bottle is too small in volume, cannot contain a large amount of solution, and is repeatedly added with water, so that the workload of workers is increased; thirdly, the bottle body is accumulated by only depending on hands, which is easy to cause fatigue.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a laboratory wash-bottle, its staving upper portion is equipped with air inlet and delivery port are equipped with the lid of admitting air and the play water cover that has good leakproofness and fastness respectively.
In order to achieve the above object, the utility model adopts the following technical scheme, include:
a barrel body, the upper part of which is provided with an air inlet and a water outlet;
the air inlet cover is detachably connected with the air inlet and is used for sealing the air inlet;
the inflating device is connected with the air inlet cover and used for inputting air into the barrel body and increasing the pressure in the barrel body; and
the water outlet cover is detachably connected with the water outlet and is used for sealing the water outlet;
the water outlet device is connected with the water outlet cover and is used for leading out water in the barrel body;
flanges extending towards the interior of the barrel body are respectively arranged on the lower edges of the mouth necks of the air inlet and the water outlet; the inner end faces of the air inlet cover and the water outlet cover are respectively provided with a sealing boss matched with the inner diameters of the air inlet and the water outlet, the lower end of the sealing boss is provided with a periphery extending outwards, the periphery is provided with a groove matched with the flange, the sealing boss is made of an elastic material, and the sealing boss is provided with an axial wedge-shaped opening.
Preferably, the intake cover includes:
the inner periphery of the first cover body is provided with an internal thread matched with the air inlet;
the first sealing boss is arranged inside the first cover body and matched with the inner diameter of the air inlet;
a first peripheral edge provided at a lower end of the first seal boss and extending toward an outer periphery of the first seal boss;
a first groove disposed on the first periphery and matching a flange disposed on the air inlet;
a first wedge groove axially disposed on the first seal boss;
the first central pipe is arranged in the center of the first cover body and is used for being connected with the inflating device.
Preferably, the pump-up device includes:
the air guide pipe is connected with the first central pipe, an air inlet hole is formed in the upper end of the air guide pipe, and a blind end is formed in the lower end of the air guide pipe; the side wall of the lower part of the air duct is provided with uniformly distributed openings;
the spring is arranged in the air duct, and the lower part of the spring is abutted against the blind end of the air duct;
the ball is arranged at the top end of the spring and is matched with the air inlet hole; and
the air chamber is arranged on the outer end face of the first cover body and is connected with the air guide pipe through an air inlet;
the inflating piston is axially movably arranged in the air chamber and is used for injecting air into the air inlet;
the length of the spring in a natural state is greater than that of the air guide pipe, a ball at the upper end of the spring is tightly attached to the side wall of the air inlet hole, and the air inlet hole is in a closed state; when the inflating piston moves downwards, the ball and the spring move downwards under the action of air pressure to open the air inlet hole.
Preferably, the outlet cover comprises:
the inner periphery of the second cover body is provided with an internal thread matched with the water outlet;
the second sealing boss is arranged inside the second cover body and matched with the inner diameter of the water outlet;
a second peripheral edge provided at a lower end of the second seal boss and extending toward an outer periphery of the second seal boss;
a second groove disposed on the second periphery and matching a flange disposed on the air inlet;
a second wedge groove axially disposed on the second seal boss;
and the second central pipe is arranged in the center of the second cover body and is used for being connected with the water outlet device.
Preferably, the water outlet device includes:
one end of the first water pipe is connected with the lower end of the second central pipe, and the other end of the first water pipe extends into the barrel body and is used for sucking water in the barrel body;
the second water pipe is connected with the upper end of the second central pipe and is used for leading out water in the barrel;
a handle connected with the second water pipe;
a nozzle removably connected to the handle for shearing the stream of water.
Preferably, the handle comprises;
a housing;
the water inlet channel is arranged at the lower part of the shell, and the tail end of the water inlet channel is connected with the second water pipe;
and the nozzle slot is positioned on the upper part of the shell, is communicated with the water inlet channel and is used for installing a nozzle.
Preferably, the method further comprises the following steps:
the opening is arranged on the side wall of the shell and communicated with the nozzle slot;
the limiting groove is arranged on the side wall of the shell and is positioned on the opposite side of the opening;
the clamping groove is arranged at the lower end of the nozzle; and
one side of the clamping ring is provided with a clamping protrusion matched with the clamping groove, one side of the clamping protrusion is provided with a limiting column, and the other end of the limiting column is positioned in the limiting groove;
the elastic piece is sleeved on the limiting column, one end of the elastic piece is abutted with the clamping protrusion, and the other end of the elastic piece is abutted with the port of the limiting groove;
and the button is connected with the clamping ring and is used for driving the clamping ring to horizontally move.
Preferably, the method further comprises the following steps:
and the backflow preventing device is arranged on the second water pipe and used for preventing water flowing out of the barrel body from flowing backwards.
Preferably, the backflow prevention device includes:
the pipe body is arranged on the second water pipe and is positioned above the water outlet, a pipe cavity is arranged in the pipe body, a square through hole is formed in the upper end of the pipe cavity, and a circular through hole is formed in the lower end of the pipe cavity;
a metal sphere disposed within the lumen;
the diameter of the metal ball is larger than that of the circular through hole, and the diameter of the metal ball is smaller than the side length of the circular through hole.
The beneficial effects of utility model are that: the spraying device has good air tightness, can ensure stable outflow of water flow, and has good spraying effect.
Drawings
Fig. 1 is a cross-sectional view of the air inlet cover in a laboratory bottle washing.
Fig. 2 is a cross-sectional view of the water outlet cover in the laboratory bottle washing of the present invention.
Fig. 3 is a cross-sectional view of the utility model of an air pump device in laboratory wash-bottle.
Fig. 4 is a cross-sectional view of the water outlet device in the laboratory bottle washing of the present invention.
Fig. 5 is a cross-sectional view of the handle in a laboratory wash bottle of the present invention.
Fig. 6 is a three-dimensional cross-sectional view of the snap ring portion of the laboratory wash bottle of the present invention.
Fig. 7 is a cross-sectional view of the backflow prevention device in the laboratory bottle washing of the present invention.
Fig. 8 is a perspective view of the laboratory wash bottle of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1-8, the utility model discloses an implementation form, in order to realize above-mentioned purpose, the utility model discloses a following technical scheme is adopted, include:
the tub 110 is made of polyethylene, and an air inlet 111 and an water outlet 112 are formed at the upper part of the tub 110; preferably, the diameter of the air inlet hole is 1.5-2 times of that between the water outlets. More preferably, the volume of the barrel body is 25L. Flanges 111a and 112a extending to the inside of the barrel body are respectively arranged at the lower edges of the necks of the air inlet 111 and the water outlet 112.
The inlet cover 120 is detachably coupled to the inlet port to seal the inlet port 111. Preferably, the intake cover includes: first cover 121, first seal boss 122, first peripheral edge 122a, first groove 122b, first wedge groove 122c, and first center tube 123. The inner circumference of the first cover 121 is provided with an internal thread 121a matched with the air inlet 111; a first sealing boss 122 is arranged inside the first cover 121 and is matched with the inner diameter of the air inlet 111; a first peripheral edge 122a is disposed at a lower end of the first sealing boss 122 and extends toward an outer periphery of the first sealing boss 122; a first groove 122b is provided on said first peripheral edge 122a and matches with a flange 111a provided on said air inlet 111; a first wedge groove 122c is axially disposed on the first seal boss 122; the first center tube 123 is disposed at the center of the first cover 121, and is used for connecting with the pump device 130. Further preferably, the first center tube 123 is perpendicular to the end surface of the first cover 121 and extends outward of the first cover 121. More preferably, a seal ring 124 is provided between the first cover 121 and the side wall of the first seal boss 122. Preferably, the first sealing boss 122 is made of an elastic material. As a further preference, the first sealing boss 122 is made of butyl rubber.
The pumping device 140 is connected to the inlet cover 120, and is used for inputting air into the barrel 110 to increase the pressure inside the barrel 110. Preferably, the pump-up device 140 includes: an air duct 141, a spring 142, a spherical ball 143, an air chamber 144, and an air-inflating piston 145. Wherein the gas-guide tube 141 is connected with the first central tube 121, the upper end of the gas-guide tube 141 is provided with a gas inlet hole 141a, and the lower end is a blind end; the side wall of the lower part of the gas-guide tube 141 is provided with uniformly distributed holes 141 b. Preferably, the side wall of the gas guiding tube 141 is fixedly connected with the side wall of the first central tube 121. The spring 142 is arranged in the air duct 141, and the lower part of the spring is abutted against the blind end of the air duct 141; the ball 143 is arranged at the top end of the spring and is matched with the air inlet hole 141 a; the air chamber 144 is arranged on the outer end surface of the first cover body 121 and is connected with the air guide tube 141 through an air inlet hole 141 a; an air pumping piston 145 is axially movably arranged in the air chamber 144 and used for injecting air into the air inlet hole 141 a; preferably, the length of the spring 142 in a natural state is greater than that of the air duct, the ball at the upper end of the spring is tightly attached to the side wall of the air inlet hole, and the air inlet hole is in a closed state, so that the air chamber 144 is isolated from the barrel body. When the pumping piston moves downward, the ball and the spring move downward under the action of air pressure, so that the air inlet hole 141a is opened, and the air chamber 144 is communicated with the inside of the tub 110 through the opening hole 141 b.
The water outlet cover 130 is detachably connected to the water outlet 112 for sealing the water outlet 112. Preferably, the outlet cover 130 comprises: a second cover 131, a second sealing boss 132, a second periphery 132a, a second groove 132b, a second wedge groove 132c, and a second center tube 133. The inner circumference of the second cover 131 is provided with an internal thread 131a matched with the water outlet 112; the second sealing boss 132 is disposed inside the second cover 131 and matches with the inner diameter of the water outlet 112; a second peripheral edge 132a is provided at a lower end of the second seal boss and extends toward an outer periphery of the second seal boss; a second groove 132b is provided on said second periphery 132a and matches with the flange 112a provided on said air inlet 112; a second wedge groove 132 is axially disposed on the second seal boss 132; a second center pipe 133 is disposed at the center of the second cover body, and is used for connecting with the water outlet device. Preferably, a sealing ring 134 is disposed between the second cover 131 and the sidewall of the second sealing boss 132. Preferably, the second sealing boss 132 is made of an elastic material. As a further preference, the second sealing boss 132 is made of butyl rubber. The central tube 133 penetrates through the second cover 131 and extends towards the inner end surface and the outer end surface of the second cover 131.
The water outlet device 150 is connected to the water outlet cover 130 and is used for leading out the water in the barrel 110. The water outlet device 150 includes: one end of the first water pipe 151 is connected with the lower end of the second central pipe 133, and the other end of the first water pipe extends into the barrel body for sucking water in the barrel body; a second water pipe 152 is connected to an upper end of the second center pipe 133 for drawing out water in the tub 110. As a preference, further comprising: a handle 160 is connected to the second water pipe 152; the nozzle 170 is detachably connected to the handle 160, and a flat nozzle is provided at a front end of the nozzle 170 for cutting water. More preferably, a control valve is provided in the second water pipe 152.
In use, deionized water is injected into the barrel 110, and the pumping device 140 and the water outlet device 150 are fixed at the air inlet 111 and the water outlet 112 through the air inlet cover 120 and the water outlet cover 130. Since the first and second sealing bosses 122 and 132 are made of butyl rubber, they have good elasticity. When the first sealing boss 122 and the second sealing boss 132 are inserted into the air inlet 111 and the water outlet 112, since the first wedge-shaped groove 122c and the second wedge-shaped groove 132c are formed on the first sealing boss 122 and the second sealing boss 132, the first sealing boss 122 and the second sealing boss 132 can be deformed, so that the air inlet 111 and the water outlet 112 can be smoothly entered. When fully entered, the first and second recesses 122b, 132b mate with the flanges 111a, 112a, respectively. When the air pumping device 140 injects air into the barrel 110, the air pressure in the barrel presses the first groove 122b and the second groove 132b to the flange 111a and the flange 112a, so as to be more closely attached, and further provide tightness at the air inlet 111 and the water outlet 112. The water flow in the barrel body is sprayed out from the water outlet device 150 under the action of gas pressure, so that the glass instrument is washed.
In another embodiment, the intake cover 120 includes: first cover 121, first seal boss 122, first peripheral edge 122a, first groove 122b, first wedge groove 122c, and first center tube 123. The inner circumference of the first cover 121 is provided with an internal thread 121a matched with the air inlet 111; a first sealing boss 122 is arranged inside the first cover 121 and is matched with the inner diameter of the air inlet 111; a first peripheral edge 122a is disposed at a lower end of the first sealing boss 122 and extends toward an outer periphery of the first sealing boss 122; a first groove 122b is provided on said first peripheral edge 122a and matches with a flange 111a provided on said air inlet 111; a first wedge groove 122c is axially disposed on the first seal boss 122; the first center tube 123 is disposed at the center of the first cover 121, and is used for connecting with the pump device 130. Further preferably, the first center tube 123 is perpendicular to the end surface of the first cover 121 and extends outward of the first cover 121. More preferably, a seal ring 124 is provided between the first cover 121 and the side wall of the first seal boss 122. Preferably, the first sealing boss 122 is made of an elastic material. As a further preference, the first sealing boss 122 is made of butyl rubber.
In another embodiment, the pump-up device 140 includes: an air duct 141, a spring 142, a spherical ball 143, an air chamber 144, and an air-inflating piston 145. The gas guide tube 141 is connected with the first central tube 121, the upper end of the gas guide tube 141 is provided with a gas inlet hole 141a, and the lower end is a blind end; the side wall of the lower part of the gas-guide tube 141 is provided with uniformly distributed holes 141 b. Preferably, the side wall of the gas guiding tube 141 is fixedly connected with the side wall of the first central tube 121. The spring 142 is arranged in the air duct 141, and the lower part of the spring is abutted against the blind end of the air duct 141; the ball 143 is arranged at the top end of the spring and is matched with the air inlet hole 141 a; the air chamber 144 is arranged on the outer end surface of the first cover body 121 and is connected with the air guide tube 141 through an air inlet hole 141 a; an air pumping piston 145 is axially movably arranged in the air chamber 144 and used for injecting air into the air inlet hole 141 a; preferably, the length of the spring 142 in a natural state is greater than that of the air duct, the ball at the upper end of the spring is tightly attached to the side wall of the air inlet hole, and the air inlet hole is in a closed state, so that the air chamber 144 is isolated from the barrel body. When the pumping piston moves downward, the ball and the spring move downward under the action of air pressure, so that the air inlet hole 141a is opened, and the air chamber 144 is communicated with the inside of the tub 110 through the opening hole 141 b.
In another embodiment, the outlet cover 130 comprises: a second cover 131, a second sealing boss 132, a second periphery 132a, a second groove 132b, a second wedge groove 132c, and a second center tube 133. The inner circumference of the second cover 131 is provided with an internal thread 131a matched with the water outlet 112; the second sealing boss 132 is disposed inside the second cover 131 and matches with the inner diameter of the water outlet 112; a second peripheral edge 132a is provided at a lower end of the second seal boss and extends toward an outer periphery of the second seal boss; a second groove 132b is provided on said second periphery 132a and matches with the flange 112a provided on said air inlet 112; a second wedge groove 132 is axially disposed on the second seal boss 132; a second center pipe 133 is disposed at the center of the second cover body, and is used for connecting with the water outlet device. Preferably, a sealing ring 134 is disposed between the second cover 131 and the sidewall of the second sealing boss 132. Preferably, the second sealing boss 132 is made of an elastic material. As a further preference, the second sealing boss 132 is made of butyl rubber. The central tube 133 penetrates through the second cover 131 and extends towards the inner end surface and the outer end surface of the second cover 131.
In another embodiment, the water outlet device 150 includes: one end of the first water pipe 151 is connected with the lower end of the second central pipe 133, and the other end of the first water pipe extends into the barrel body for sucking water in the barrel body; a second water pipe 152 is connected to an upper end of the second center pipe 133 for drawing out water in the tub 110. As a preference, further comprising: a handle 160 is connected to the second water pipe 152; a nozzle 170 is removably connected to the handle 160 for cutting the water stream. More preferably, a control valve is provided in the second water pipe 152.
In another embodiment, the handle 160 includes: a housing 161, a water inlet channel 162, and a nozzle slot 163. Wherein the housing 161 is made of PVC. A water inlet channel 162 is arranged at the lower part of the shell, and the tail end of the water inlet channel is connected with the second water pipe 152; the nozzle insertion groove 163 is formed at an upper portion of the housing 161 and communicates with the water inlet passage 162 for mounting the nozzle 170. Preferably, an opening 164 is formed on a sidewall of the housing, and the opening 164 is communicated with the nozzle insertion groove 163; a limiting groove 165 is arranged on the side wall of the shell opposite to the opening 164; a clamping groove 171 is arranged at the lower end of the nozzle 170; a clamping protrusion 166a matched with the clamping groove 171 is arranged on one side of the clamping ring 166, a limiting column 166b is arranged on one side of the clamping protrusion, and the other end of the limiting column is positioned in the limiting groove 165; the elastic piece 167 is sleeved on the limiting column 166b, one end of the elastic piece is abutted against the clamping projection 166a, and the other end of the elastic piece is abutted against the port of the limiting groove 165; button 168 is coupled to and extends from the opening for moving snap ring 166 horizontally.
In another embodiment, the method further comprises: an opening 164 is formed in a side wall of the housing 161, and the opening 164 is communicated with the nozzle insertion groove 163; a limiting groove 165 is arranged on the side wall of the shell opposite to the opening 164; a clamping groove 171 is arranged at the lower end of the nozzle 170; a clamping protrusion 166a matched with the clamping groove 171 is arranged on one side of the clamping ring 166, a limiting column 166b is arranged on one side of the clamping protrusion, and the other end of the limiting column is positioned in the limiting groove 165; the elastic piece 167 is sleeved on the limiting column 166b, one end of the elastic piece is abutted against the clamping projection 166a, and the other end of the elastic piece is abutted against the port of the limiting groove 165; button 168 is coupled to and extends from the opening for moving snap ring 166 horizontally.
In another embodiment, the method further comprises: and a backflow prevention device 180 disposed on the second water pipe 152 for preventing the water flowing out of the tub 110 from flowing backwards.
In another embodiment, the backflow prevention device 180 includes: the pipe body 181 is arranged on the second water pipe 152 and above the water outlet 112, a pipe cavity 181a is arranged in the pipe body 182, a square through hole 181b is arranged at the upper end of the pipe cavity 181, and a circular through hole 181c is arranged at the lower end of the pipe cavity 181; a metal sphere 182 is disposed within the lumen 181; the diameter of the metal sphere 182 is greater than that of the circular through hole 181c, and the diameter of the metal sphere 182 is less than the side length of the circular through hole 181 b.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (9)
1. A laboratory wash bottle, comprising:
a barrel body, the upper part of which is provided with an air inlet and a water outlet;
the air inlet cover is detachably connected with the air inlet and is used for sealing the air inlet;
the inflating device is connected with the air inlet cover and used for inputting air into the barrel body and increasing the pressure in the barrel body; and
the water outlet cover is detachably connected with the water outlet and is used for sealing the water outlet;
the water outlet device is connected with the water outlet cover and is used for leading out water in the barrel body;
flanges extending towards the interior of the barrel body are respectively arranged on the lower edges of the mouth necks of the air inlet and the water outlet; the inner end faces of the air inlet cover and the water outlet cover are respectively provided with a sealing boss matched with the inner diameters of the air inlet and the water outlet, the lower end of the sealing boss is provided with a periphery extending outwards, the periphery is provided with a groove matched with the flange, the sealing boss is made of an elastic material, and the sealing boss is provided with an axial wedge-shaped opening.
2. The laboratory wash bottle of claim 1, wherein the access cap comprises:
the inner periphery of the first cover body is provided with an internal thread matched with the air inlet;
the first sealing boss is arranged inside the first cover body and matched with the inner diameter of the air inlet;
a first peripheral edge provided at a lower end of the first seal boss and extending toward an outer periphery of the first seal boss;
a first groove disposed on the first periphery and matching a flange disposed on the air inlet;
a first wedge groove axially disposed on the first seal boss;
the first central pipe is arranged in the center of the first cover body and is used for being connected with the inflating device.
3. The laboratory wash bottle of claim 2, wherein the pump-up device comprises:
the air guide pipe is connected with the first central pipe, an air inlet hole is formed in the upper end of the air guide pipe, and a blind end is formed in the lower end of the air guide pipe; the side wall of the lower part of the air duct is provided with uniformly distributed openings;
the spring is arranged in the air duct, and the lower part of the spring is abutted against the blind end of the air duct;
the ball is arranged at the top end of the spring and is matched with the air inlet hole; and
the air chamber is arranged on the outer end face of the first cover body and is connected with the air guide pipe through an air inlet;
the inflating piston is axially movably arranged in the air chamber and is used for injecting air into the air inlet;
the length of the spring in a natural state is greater than that of the air guide pipe, a ball at the upper end of the spring is tightly attached to the side wall of the air inlet hole, and the air inlet hole is in a closed state; when the inflating piston moves downwards, the ball and the spring move downwards under the action of air pressure to open the air inlet hole.
4. The laboratory wash bottle of claim 1, wherein the outlet cap comprises:
the inner periphery of the second cover body is provided with an internal thread matched with the water outlet;
the second sealing boss is arranged inside the second cover body and matched with the inner diameter of the water outlet;
a second peripheral edge provided at a lower end of the second seal boss and extending toward an outer periphery of the second seal boss;
a second groove disposed on the second periphery and matching a flange disposed on the air inlet;
a second wedge groove axially disposed on the second seal boss;
and the second central pipe is arranged in the center of the second cover body and is used for being connected with the water outlet device.
5. The laboratory wash bottle of claim 4, wherein the water outlet device comprises:
one end of the first water pipe is connected with the lower end of the second central pipe, and the other end of the first water pipe extends into the barrel body and is used for sucking water in the barrel body;
the second water pipe is connected with the upper end of the second central pipe and is used for leading out water in the barrel;
a handle connected with the second water pipe;
a nozzle removably connected to the handle for shearing the stream of water.
6. The laboratory wash bottle of claim 5, wherein the handle comprises:
a housing;
the water inlet channel is arranged at the lower part of the shell, and the tail end of the water inlet channel is connected with the second water pipe;
and the nozzle slot is positioned on the upper part of the shell, is communicated with the water inlet channel and is used for installing a nozzle.
7. The laboratory wash bottle of claim 6, further comprising:
the opening is arranged on the side wall of the shell and communicated with the nozzle slot;
the limiting groove is arranged on the side wall of the shell and is positioned on the opposite side of the opening;
the clamping groove is arranged at the lower end of the nozzle; and
one side of the clamping ring is provided with a clamping protrusion matched with the clamping groove, one side of the clamping protrusion is provided with a limiting column, and the other end of the limiting column is positioned in the limiting groove;
the elastic piece is sleeved on the limiting column, one end of the elastic piece is abutted with the clamping protrusion, and the other end of the elastic piece is abutted with the port of the limiting groove;
and the button is connected with the clamping ring and is used for driving the clamping ring to horizontally move.
8. The laboratory wash bottle of claim 5, further comprising:
and the backflow preventing device is arranged on the second water pipe and used for preventing water flowing out of the barrel body from flowing backwards.
9. The laboratory wash bottle of claim 8, wherein the backflow prevention device comprises:
the pipe body is arranged on the second water pipe and is positioned above the water outlet, a pipe cavity is arranged in the pipe body, a square through hole is formed in the upper end of the pipe cavity, and a circular through hole is formed in the lower end of the pipe cavity;
a metal sphere disposed within the lumen;
the diameter of the metal ball is larger than that of the circular through hole, and the diameter of the metal ball is smaller than the side length of the circular through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920615225.6U CN209934764U (en) | 2019-04-30 | 2019-04-30 | Laboratory wash-bottle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920615225.6U CN209934764U (en) | 2019-04-30 | 2019-04-30 | Laboratory wash-bottle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209934764U true CN209934764U (en) | 2020-01-14 |
Family
ID=69130842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920615225.6U Expired - Fee Related CN209934764U (en) | 2019-04-30 | 2019-04-30 | Laboratory wash-bottle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209934764U (en) |
-
2019
- 2019-04-30 CN CN201920615225.6U patent/CN209934764U/en not_active Expired - Fee Related
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