CN210080315U - A suction device for laboratory - Google Patents
A suction device for laboratory Download PDFInfo
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- CN210080315U CN210080315U CN201920830139.7U CN201920830139U CN210080315U CN 210080315 U CN210080315 U CN 210080315U CN 201920830139 U CN201920830139 U CN 201920830139U CN 210080315 U CN210080315 U CN 210080315U
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Abstract
A suction device for a laboratory comprises a longitudinal air suction pipe and a transverse air suction pipe connected to the upper end of the longitudinal air suction pipe, wherein a base plate extends outwards from the edge of a pipe orifice at the lower end of the longitudinal air suction pipe; the left side and the right side of the upper surface of the foundation plate are provided with supporting plates which are mutually symmetrical; the left side and the right side of the upper surface of the foundation plate are provided with upper sliding chutes which are mutually symmetrical, and the upper sliding chutes are positioned between the supporting plates; a lower sliding groove communicated with the upper sliding groove is arranged in the foundation plate, and the width of the upper sliding groove is smaller than that of the lower sliding groove; a lower sliding block matched with the lower sliding groove is arranged in the lower sliding groove, and an upper sliding rod matched with the upper sliding groove is arranged on the upper surface of the lower sliding block; the lower sliding block is connected with the inner baffle through the upper sliding rod. The utility model discloses a suction device for laboratory can increase the area covered of self when self can't cover all chemical flue gas, makes all chemical flue gas can both be absorbed by the cover of breathing in, guarantees the cleanness of the air in the laboratory.
Description
Technical Field
The utility model relates to a suction device, especially a suction device for laboratory.
Background
When the laboratory is tested, then can take place chemical reaction when different liquid mixes, can produce chemical flue gas simultaneously, if give off and be inhaled internally by the experimenter in the air in laboratory, then can cause harm to the physical health of experimenter, consequently generally all can be at laboratory installation suction device, suction device passes through motor drive impeller and produces suction, finally through the cover of breathing in with chemical flue gas suction device in to play the effect of chemistry flue gas.
Suction device's the cover of breathing in is in the experimental area directly over, the very first time of being convenient for absorbs the chemical flue gas that produces when the experiment, and the coverage area of traditional suction device's the cover of breathing in is invariable, but in the in-service use process, very easily run into the chemical flue gas and produce in a large number from the experimental area, the coverage area when the cover of breathing in can't cover the chemical flue gas that produces completely in the below, although some chemical flue gas is absorbed by the cover of breathing in, remaining flue gas then can stretch to outside the experimental area, cause the pollution to the air in the laboratory, there is the potential safety hazard.
Disclosure of Invention
The utility model aims to solve the current technical problem and provide a suction device for laboratory, it can increase the area covered of self when self can't cover all chemical flue gas, makes all chemical flue gas can both be absorbed by the cover of breathing in, guarantees the clean of the air in the laboratory.
The utility model provides a technical scheme that above-mentioned technical problem adopted does:
the utility model discloses a suction device for laboratory, including vertical breathing pipe, connect in the horizontal breathing pipe of vertical breathing pipe upper end, its characterized in that: a base plate extends outwards from the edge of the lower end pipe orifice of the longitudinal air suction pipe; the left side and the right side of the upper surface of the foundation plate are provided with supporting plates which are mutually symmetrical; the left side and the right side of the upper surface of the foundation plate are provided with upper sliding chutes which are mutually symmetrical, and the upper sliding chutes are positioned between the supporting plates; a lower sliding groove communicated with the upper sliding groove is arranged in the foundation plate, and the width of the upper sliding groove is smaller than that of the lower sliding groove; a lower sliding block matched with the lower sliding groove is arranged in the lower sliding groove, and an upper sliding rod matched with the upper sliding groove is arranged on the upper surface of the lower sliding block; the lower sliding block is connected with the inner baffle through the upper sliding rod; the upper end of the inner baffle extends out of an amplification plate towards the outer edge of the foundation plate; an outer baffle plate which is attached to the outer wall of the supporting plate extends downwards from the edge of the outer end of the amplification plate, and the lower surface of the outer baffle plate is lower than the lower surface of the foundation plate; the amplification plate, the inner baffle plate, the support plate and the foundation plate are enclosed to form a sealed cavity; the sealing chamber is communicated with the upper part of the longitudinal air suction pipe through a communication device; the longitudinal air suction pipe is provided with an opening and closing device.
The communication device comprises a first screw joint communicated with the sealed chamber and a second screw joint communicated with the longitudinal air suction pipe; the first screw joint is in threaded connection with a longitudinal vent pipe, and the second screw joint is in threaded connection with a transverse vent pipe; the upper end of the longitudinal vent pipe is provided with a guide block; a movable cavity communicated with the longitudinal vent pipe is arranged in the guide block; one side of the guide block, which is opposite to the longitudinal air suction pipe, is provided with a telescopic hole communicated with the movable cavity; one end of the transverse vent pipe penetrates into the movable cavity through the telescopic hole and is attached to the inner wall of one side of the movable cavity away from the longitudinal air suction pipe, a limiting plate extends outwards from the edge of the opening of the end of the transverse vent pipe, and the diameter of the limiting plate is larger than that of the telescopic hole; the limiting plate is provided with a plurality of vent holes which are uniformly distributed in the circumferential direction; the inner wall of the part of the movable cavity, which is adjacent to the telescopic hole, is provided with a plurality of limiting blocks which are uniformly distributed in the circumferential direction.
A plurality of sealing grooves which are uniformly distributed in the circumference are arranged in the telescopic hole; and a sealing ring matched with the sealing groove is arranged in the sealing groove.
The inner wall of one side of the movable cavity opposite to the limiting plate is provided with a plurality of rubber heads corresponding to the positions of the vent holes, and the vent holes are blocked by the rubber heads.
The opening and closing device comprises an opening and closing plate arranged in the longitudinal air suction pipe; the middle part of the opening and closing plate is provided with a rotating shaft; a rotary groove is formed in the inner wall of the left side of the longitudinal air suction pipe; the outer wall of the right side of the longitudinal air suction pipe is provided with a rotating hole communicated with the inner space of the longitudinal air suction pipe; the left end of the rotating shaft is clamped in the rotating groove, and the right end of the rotating shaft penetrates through the rotating hole rightwards and is connected with a rotating wheel; a plurality of jacks which are uniformly distributed in the circumferential direction are arranged on the outer edge of the rotating wheel; the outer wall of the longitudinal air suction pipe is provided with a slot; a plug is inserted through one of the jacks and into the slot.
The outer wall of the outer baffle is provided with a pull ring.
The utility model has the advantages that:
compared with the prior art, adopt the utility model discloses a suction device for laboratory of structure can effectively increase the coverage area of foundatin plate through the amplification board, thereby make chemical flue gas all can be covered including by suction device, and the amplification board is connected with vertical breathing pipe through intercommunication device, when the amplification board is to the coverage area amplification of foundatin plate, can increase suction device's induction port, guarantee can improve the efficiency of absorbing chemical flue gas through the reposition of redundant personnel mode of breathing in when coverage area enlarges, effectively avoid chemical flue gas to give off the condition that causes air pollution outside the experimental area.
Drawings
Fig. 1 is a schematic structural view of a suction device for a laboratory according to the present invention;
fig. 2 is a partial schematic structural view of the suction device for laboratory use according to the present invention.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
referring to fig. 1 and 2, the present invention provides a suction device for a laboratory, which includes a longitudinal air suction pipe 1 and a transverse air suction pipe 2 connected to the upper end of the longitudinal air suction pipe 1, wherein a base plate 3 extends outwards from the edge of the lower end pipe orifice of the longitudinal air suction pipe 1; the left side and the right side of the upper surface of the foundation plate 3 are provided with supporting plates 4 which are mutually symmetrical; the left side and the right side of the upper surface of the foundation plate 3 are provided with upper chutes 5 which are symmetrical with each other, and the upper chutes 5 are positioned between the supporting plates 4; a lower chute 6 communicated with the upper chute 5 is arranged in the foundation plate 3, and the width of the upper chute 5 is smaller than that of the lower chute 6; a lower sliding block 7 matched with the lower sliding chute 6 is arranged in the lower sliding chute 6, and an upper sliding rod 8 matched with the upper sliding chute 5 is arranged on the upper surface of the lower sliding block 7; the lower sliding block 7 is connected with an inner baffle 9 through an upper sliding rod 8; the upper end of the inner baffle 9 extends out of an amplification plate 10 towards the outer edge of the foundation plate 3; an outer baffle 11 attached to the outer wall of the supporting plate 4 extends downwards from the edge of the outer end of the amplification plate 10, and the lower surface of the outer baffle 11 is lower than the lower surface of the foundation plate 3; the amplification plate 10, the inner baffle 9, the support plate 4 and the base plate 3 enclose to form a sealed chamber 12; the sealed chamber 12 is communicated with the upper part of the longitudinal air suction pipe 1 through a communication device; the longitudinal air suction pipe 1 is provided with an opening and closing device.
The communication device comprises a first screw joint 13 communicated with the sealed chamber 12 and a second screw joint 14 communicated with the longitudinal air suction pipe 1; the first screw joint 13 is screwed with a longitudinal vent pipe 15, and the second screw joint 14 is screwed with a transverse vent pipe 16; the upper end of the longitudinal vent pipe 15 is provided with a guide block 17; a movable cavity 18 communicated with the longitudinal vent pipe 15 is arranged in the guide block 17; one side of the guide block 17 opposite to the longitudinal air suction pipe 1 is provided with a telescopic hole 19 communicated with the movable cavity 18; one end of the transverse vent pipe 16 penetrates into the movable cavity 18 through the telescopic hole 19 and is attached to the inner wall of one side of the movable cavity 18 away from the longitudinal air suction pipe 1, a limit plate 20 extends outwards from the edge of the opening of the end of the transverse vent pipe 16, and the diameter of the limit plate 20 is larger than that of the telescopic hole 19; the limiting plate 20 is provided with a plurality of vent holes 21 which are uniformly distributed in the circumferential direction; the inner wall of the part of the movable cavity 18 adjacent to the telescopic hole 19 is provided with a plurality of limit blocks 22 which are uniformly distributed in the circumference.
A plurality of sealing grooves 23 which are uniformly distributed in the circumference are arranged in the telescopic hole 19; a sealing ring 24 matched with the sealing groove 23 is arranged in the sealing groove.
A plurality of rubber heads 25 corresponding to the positions of the vent holes 21 are arranged on the inner wall of the movable chamber 18 on the side opposite to the limiting plate 20, and the vent holes 21 are blocked by the rubber heads 25.
The opening and closing device comprises an opening and closing plate 26 arranged in the longitudinal air suction pipe 1; a rotating shaft 27 is arranged in the middle of the opening and closing plate 26; a rotary groove 28 is arranged on the inner wall of the left side of the longitudinal air suction pipe 1; the outer wall of the right side of the longitudinal air suction pipe 1 is provided with a rotating hole 29 communicated with the inner space of the longitudinal air suction pipe 1; the left end of the rotating shaft 27 is clamped in the rotating groove 28, and the right end of the rotating shaft 27 penetrates through the rotating hole 29 rightwards and is connected with a rotating wheel 30; a plurality of jacks 31 which are uniformly distributed in the circumferential direction are arranged on the outer edge of the rotating wheel 30; the outer wall of the longitudinal air suction pipe 1 is provided with a slot 32; a plug 33 is inserted through one of the insertion holes 31 and into the insertion groove 32.
The outer wall of the outer baffle plate 11 is provided with a pull ring 34.
The utility model discloses a use method as follows:
when the chemical smoke generated in the experimental area is less and can be covered by the base plate, only the air extractor needs to be opened, the air extractor can suck the chemical smoke from the lower end pipe orifice of the longitudinal air suction pipe 1 into the longitudinal air suction pipe 1 through self suction, so as to play a role in removing the chemical smoke, when the chemical smoke is sucked, a user can adjust the wind power of the air extractor through the opening and closing device, so as to adapt to the chemical smoke with different generation time, when the opening and closing device is used, the experimenter can firstly pull out the plug 33 from the slot 32, when the rotating wheel 30 loses the limit of the plug 33, the user can rotate the rotating wheel 30, when the rotating wheel 30 rotates, the rotating wheel 30 can drive the opening and closing plate 26 to rotate through the rotating shaft 27, the covering area of the longitudinal air suction pipe 1 can be different at different angles through the plate-shaped opening and closing plate 26, so as to play a role in adjusting, thereby controlling the amount of suction of the longitudinal suction duct 1.
When more chemical fumes are generated in the experimental area and cannot be covered by the base plate, an experimenter can pull the left outer baffle plate 11 leftwards and the right outer baffle plate 11 rightwards, when the outer baffle plate 11 moves, the amplification plate 10 moves along with the movement, meanwhile, the inner baffle plate 9 moves, the inner baffle plate 9 can keep moving stably under the guiding action of the lower sliding block 7, so that the amplification plate 10 can be ensured to move stably, when the amplification plate 10 moves, because the first screw joint 13 is arranged on the amplification plate 10, the longitudinal vent pipe 15 and the guide block 17 both move towards the direction far away from the longitudinal air suction pipe 1, at the moment, the limiting plate 20 is not attached to the inner wall of the movable chamber 18, the inner wall of the movable chamber 18 does not block the vent hole 21 on the limiting plate 20 any more, and the first screw joint 13 is not communicated with the sealing chamber 12 any more, and along with the movement of the first screw joint 13 to the range of the base plate 3, first screwed joint 13 just directly link up with the external world mutually, the air current can enter into vertical breather pipe 15 through first screwed joint 13 at this moment, then enter into activity cavity 18 in, and enter into horizontal breather pipe 16 through air vent 21 in, finally enter into vertical breathing pipe 1 through second screwed joint 14 in, thereby guarantee that first screwed joint 13 position can produce sufficient suction, and along with the amplification board 10 of the left and right sides removes towards the left and right sides respectively, can effectively increase the coverage area of foundatin plate 3, and can increase the induction port through first screwed joint 13, guarantee to improve the efficiency of absorbing chemical flue gas through the reposition of redundant personnel mode of breathing in when the coverage area enlarges, effectively avoid chemical flue gas to give off the condition that causes air pollution outside the experimental area.
A plurality of sealing grooves 23 which are uniformly distributed in the circumference are formed in the telescopic hole 19, sealing rings 24 matched with the sealing grooves 23 are formed in the sealing grooves 23, and the existence of the sealing rings 24 can improve the sealing performance between the transverse vent pipe 16 and the telescopic hole 19, so that the sealing performance of the transverse vent pipe 16 during telescopic operation is improved.
Be equipped with a plurality of rubber heads 25 corresponding with air vent 21 position on the relative one side inner wall of activity cavity 18 and limiting plate 20, rubber head 25 blocks up air vent 21, and the leakproofness between activity cavity 18 and the limiting plate 20 can effectively be improved in the existence of rubber head 25, avoids when suction apparatus need not to increase the coverage area, has the air current to carry out the condition of seepage through the clearance between activity cavity 18 and the limiting plate 20.
The outer wall of the outer baffle plate 11 is provided with a pull ring 34, and the existence of the pull ring 34 can facilitate the experimenter to pull the outer baffle plate 11.
Claims (6)
1. The utility model provides a suction device for laboratory, includes vertical breathing pipe, connects in the horizontal breathing pipe of vertical breathing pipe upper end which characterized in that: a base plate extends outwards from the edge of the lower end pipe orifice of the longitudinal air suction pipe; the left side and the right side of the upper surface of the foundation plate are provided with supporting plates which are mutually symmetrical; the left side and the right side of the upper surface of the foundation plate are provided with upper sliding chutes which are mutually symmetrical, and the upper sliding chutes are positioned between the supporting plates; a lower sliding groove communicated with the upper sliding groove is arranged in the foundation plate, and the width of the upper sliding groove is smaller than that of the lower sliding groove; a lower sliding block matched with the lower sliding groove is arranged in the lower sliding groove, and an upper sliding rod matched with the upper sliding groove is arranged on the upper surface of the lower sliding block; the lower sliding block is connected with the inner baffle through the upper sliding rod; the upper end of the inner baffle extends out of an amplification plate towards the outer edge of the foundation plate; an outer baffle plate which is attached to the outer wall of the supporting plate extends downwards from the edge of the outer end of the amplification plate, and the lower surface of the outer baffle plate is lower than the lower surface of the foundation plate; the amplification plate, the inner baffle plate, the support plate and the foundation plate are enclosed to form a sealed cavity; the sealing chamber is communicated with the upper part of the longitudinal air suction pipe through a communication device; the longitudinal air suction pipe is provided with an opening and closing device.
2. A suction device for laboratories according to claim 1, characterized in that: the communication device comprises a first screw joint communicated with the sealed chamber and a second screw joint communicated with the longitudinal air suction pipe; the first screw joint is in threaded connection with a longitudinal vent pipe, and the second screw joint is in threaded connection with a transverse vent pipe; the upper end of the longitudinal vent pipe is provided with a guide block; a movable cavity communicated with the longitudinal vent pipe is arranged in the guide block; one side of the guide block, which is opposite to the longitudinal air suction pipe, is provided with a telescopic hole communicated with the movable cavity; one end of the transverse vent pipe penetrates into the movable cavity through the telescopic hole and is attached to the inner wall of one side of the movable cavity away from the longitudinal air suction pipe, a limiting plate extends outwards from the edge of the opening of the end of the transverse vent pipe, and the diameter of the limiting plate is larger than that of the telescopic hole; the limiting plate is provided with a plurality of vent holes which are uniformly distributed in the circumferential direction; the inner wall of the part of the movable cavity, which is adjacent to the telescopic hole, is provided with a plurality of limiting blocks which are uniformly distributed in the circumferential direction.
3. A suction device for laboratories according to claim 2, characterized in that: a plurality of sealing grooves which are uniformly distributed in the circumference are arranged in the telescopic hole; and a sealing ring matched with the sealing groove is arranged in the sealing groove.
4. A suction device for laboratories according to claim 2, characterized in that: the inner wall of one side of the movable cavity opposite to the limiting plate is provided with a plurality of rubber heads corresponding to the positions of the vent holes, and the vent holes are blocked by the rubber heads.
5. A suction device for laboratories according to claim 1, characterized in that: the opening and closing device comprises an opening and closing plate arranged in the longitudinal air suction pipe; the middle part of the opening and closing plate is provided with a rotating shaft; a rotary groove is formed in the inner wall of the left side of the longitudinal air suction pipe; the outer wall of the right side of the longitudinal air suction pipe is provided with a rotating hole communicated with the inner space of the longitudinal air suction pipe; the left end of the rotating shaft is clamped in the rotating groove, and the right end of the rotating shaft penetrates through the rotating hole rightwards and is connected with a rotating wheel; a plurality of jacks which are uniformly distributed in the circumferential direction are arranged on the outer edge of the rotating wheel; the outer wall of the longitudinal air suction pipe is provided with a slot; a plug is inserted through one of the jacks and into the slot.
6. A suction device for laboratories according to claim 1, characterized in that: the outer wall of the outer baffle is provided with a pull ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920830139.7U CN210080315U (en) | 2019-06-04 | 2019-06-04 | A suction device for laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920830139.7U CN210080315U (en) | 2019-06-04 | 2019-06-04 | A suction device for laboratory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210080315U true CN210080315U (en) | 2020-02-18 |
Family
ID=69481512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920830139.7U Active CN210080315U (en) | 2019-06-04 | 2019-06-04 | A suction device for laboratory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210080315U (en) |
-
2019
- 2019-06-04 CN CN201920830139.7U patent/CN210080315U/en active Active
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