CN216012871U

CN216012871U - Air bag sampler of vacuum box

Info

Publication number: CN216012871U
Application number: CN202121290074.5U
Authority: CN
Inventors: 张博
Original assignee: Henan Da'an Testing Technology Co ltd
Current assignee: Henan Da'an Testing Technology Co ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2022-03-11
Anticipated expiration: 2031-06-09

Abstract

The utility model provides a vacuum box air bag sampler, which relates to the technical field of gas sampling equipment, and comprises: base, lift guide pillar and vacuum chamber sample thief, the lift backup pad is installed to the top of base, the bottom fixed mounting of lift backup pad has driving motor and fixed block, the middle part of fixed block is rotated and is installed and be used for driven transmission shaft, the transmission is connected with the second driving medium between the middle part of transmission shaft and driving motor's the output shaft, the one end fixed mounting of transmission shaft has half gear, the rack of bottom fixed connection at the base top is installed to the bilateral symmetry of half gear, the carousel is installed on the top of lift backup pad, the bottom middle part fixed mounting of carousel has the axis of rotation that the lift backup pad is run through to the bottom, the transmission is connected with first transmission piece between the bottom of axis of rotation and the other end of transmission shaft. So that the device can be lifted and rotated simultaneously when sampling air.

Description

Air bag sampler of vacuum box

Technical Field

The utility model relates to the technical field of gas sampling equipment, in particular to an air bag sampler of a vacuum box.

Background

The gas sampling instrument is a conventional instrument for collecting gas samples in atmospheric environment or working environment, and the gas collecting methods are divided into two types: one is to make a large amount of air pass through a liquid absorbent or a solid adsorbent to enrich pollutants with low concentration in the atmosphere, such as an air pumping method and a filter membrane method, and the other is to collect the air containing the pollutants by using a container, wherein the average concentration of the pollutants in the atmosphere in the sampling time is measured; the latter measured instantaneous concentrations or average concentrations over a short period of time.

The Chinese patent with the publication number of CN211877527U discloses a vacuum box air bag sampler, which comprises a box body and a hand-held support, wherein a rotating shaft is fixedly mounted at the edge of the upper end of the box body, the hand-held support is positioned in the box body, an air outlet is formed in the lower end of an air pump, a round hole is formed in the lower surface of a first pipeline, a valve is arranged on the surface of a second pipeline, a sponge pad is arranged on the lower surface of the inner part of the box body, a fixing plate is arranged in the middle of the inner side of the box body, and a rubber pad is fixedly mounted on the inner wall of a hole groove.

However, the above technical solutions have the following defects that the device is not convenient to rotate and lift when collecting gas, so that the device can only collect air at a single height and in a single direction, which results in poor gas sampling property collected by the device and cannot accurately detect the air in the area.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an air bag sampler of a vacuum box, and aims to solve the problems that the air bag sampler of the vacuum box in the prior art is inconvenient to rotate and lift when used for collecting gas, so that a device can only collect the gas at a single height and in a single direction, the gas collected by the device is poor in nature, and the air in the area cannot be accurately detected.

In order to achieve the purpose, the utility model adopts the following technical scheme: the vacuum box air bag sampler comprises: a base, lifting guide posts fixedly arranged at four corners of the top of the base and a vacuum box sampler for sampling air, a lifting support plate which slides along the lifting guide post with single degree of freedom is arranged above the base, a driving motor and a fixed block are fixedly arranged at the bottom of the lifting support plate, a transmission shaft for transmission is rotatably arranged in the middle of the fixed block, a second transmission piece is connected between the middle of the transmission shaft and an output shaft of the driving motor in a transmission way, one end of the transmission shaft is fixedly provided with a half gear, two sides of the half gear are symmetrically provided with racks with bottom ends fixedly connected with the top of the base, the top of lift backup pad is installed the carousel, the bottom middle part fixed mounting of carousel has the bottom to run through the axis of rotation of lift backup pad, the transmission is connected with first transmission piece between the bottom of axis of rotation and the other end of transmission shaft.

According to a further technical scheme, the vacuum box sampler is fixedly mounted at the top of the rotary table, through holes are formed in four corners of the top of the lifting support plate, and the lifting support plate is connected with the lifting guide pillar in a sliding mode through the through holes.

According to a further technical scheme, a plurality of balls for reducing friction are arranged between the top of the lifting support plate and the bottom of the rotary table and are uniformly distributed in the circumferential direction of the rotary table.

According to a further technical scheme, one side, close to the top of the half gear, of the lifting support plate is provided with a communicating groove, and the lifting support plate is connected with the rack in a sliding mode through the communicating groove.

The technical scheme of the utility model is that the first transmission piece is a pair of mutually meshed bevel gears, and the two bevel gears are respectively and fixedly arranged on the transmission shaft and the rotating shaft.

According to a further technical scheme, the second transmission piece is a transmission belt wheel or a transmission chain wheel.

The utility model has the beneficial effects that:

during gas sampling, start vacuum chamber sample thief and driving motor, driving motor passes through the second driving medium and drives the transmission shaft rotation, the transmission shaft drives half gear revolve, half gear is connected through the meshing with the rack and is driven the lift backup pad and carry out reciprocating motion, the transmission shaft drives axis of rotation and carousel rotation through first driving medium simultaneously, thereby it rotates to drive the vacuum chamber sample thief, thereby make the device go up and down and rotatory simultaneously when sampling the air, guaranteed that the device can sample the air of co-altitude and different position, the gaseous sample nature of device collection has been improved, thereby sample detection's accuracy has been improved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural view of the transmission mechanism of the present invention.

Fig. 3 is a top view of an embodiment of the present invention.

In the figure: 1. a base; 2. lifting the supporting plate; 3. a lifting guide post; 4. a rack; 5. a turntable; 6. a vacuum box sampler; 7. a communicating groove; 8. a half gear; 9. a fixed block; 10. a drive shaft; 11. a first transmission member; 12. a rotating shaft; 13. a drive motor; 14. a second transmission member; 15. and a ball.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings.

1-3, a vacuum box air bag sampler comprising: the base plate (1) is provided with a base, lifting guide pillar 3 and the vacuum box sample thief 6 that is used for air sampling at the four corners of base 1 top, lifting support plate 2 that slides along lifting guide pillar 3 single degree of freedom is installed to base 1's top, lifting support plate 2's bottom fixed mounting has driving motor 13 and fixed block 9, fixed block 9's mid-mounting has transmission shaft 10 that is used for the transmission, the transmission is connected with second driving medium 14 between transmission shaft 10's the middle part and driving motor 13's the output shaft, the one end fixed mounting of transmission shaft 10 has half gear 8, bottom fixed connection is installed to half gear 8's bilateral symmetry 4 at the rack at base 1 top, carousel 5 is installed on lifting support plate 2's top, carousel 5's bottom middle part fixed mounting has the axis of rotation 12 that the bottom runs through lifting support plate 2, the transmission is connected with first driving medium 11 between the bottom of axis of rotation 12 and the other end of transmission shaft 10.

In this embodiment, during gas sampling, start vacuum chamber sample thief 6 and driving motor 13, driving motor 13 drives transmission shaft 10 through second driving medium 14 and rotates, transmission shaft 10 drives half gear 8 and rotates, half gear 8 is connected through the meshing with rack 4 and is driven lift backup pad 2 and carry out the reciprocating motion that goes up and down, transmission shaft 10 drives axis of rotation 12 and carousel 5 through first driving medium 11 simultaneously and rotates, thereby it rotates to drive vacuum chamber sample thief 6, thereby make the device can go up and down and rotate simultaneously when sampling air, guaranteed that the device can sample the air of co-altitude and different position, the gaseous sample nature of device collection has been improved, thereby sample detection's accuracy has been improved.

Specifically, vacuum box sample thief 6 fixed mounting has seted up the through-hole at the top four corners of lift backup pad 2 at the top of carousel 5, and lift backup pad 2 passes through the through-hole and goes up and down guide pillar 3 sliding connection.

Specifically, a plurality of balls 15 for reducing friction are arranged between the top of the lifting support plate 2 and the bottom of the turntable 5, and the balls 15 are uniformly distributed along the circumferential direction of the turntable 5.

Specifically, a communicating groove 7 is formed in one side, close to the top of the half gear 8, of the lifting support plate 2, and the lifting support plate 2 is connected with the rack 4 in a sliding mode through the communicating groove 7.

Preferably, the first transmission member 11 is a pair of mutually engaged bevel gears, and the two bevel gears are fixedly mounted on the transmission shaft 10 and the rotating shaft 12, respectively.

Preferably, the second transmission member 14 is a driving pulley or a driving sprocket.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A vacuum box air bag sampler comprising: the air sampling device comprises a base (1), lifting guide pillars (3) fixedly installed at four corners of the top of the base (1) and a vacuum box sampler (6) for sampling air, and is characterized in that a lifting support plate (2) which slides along the lifting guide pillars (3) with one degree of freedom is installed above the base (1), a driving motor (13) and a fixed block (9) are fixedly installed at the bottom of the lifting support plate (2), a transmission shaft (10) for transmission is rotatably installed in the middle of the fixed block (9), a second transmission part (14) is connected between the middle of the transmission shaft (10) and an output shaft of the driving motor (13) in a transmission manner, a half gear (8) is fixedly installed at one end of the transmission shaft (10), racks (4) with bottom ends fixedly connected to the top of the base (1) are symmetrically installed on two sides of the half gear (8), and a rotary table (5) is installed at the top end of the lifting support plate (2), the bottom middle part fixed mounting of carousel (5) has axis of rotation (12) that the bottom runs through lift backup pad (2), the transmission is connected with first transmission piece (11) between the bottom of axis of rotation (12) and the other end of transmission shaft (10).

2. The vacuum box air bag sampler as claimed in claim 1, wherein the vacuum box sampler (6) is fixedly mounted on the top of the turntable (5), four corners of the top of the lifting support plate (2) are provided with through holes, and the lifting support plate (2) is slidably connected with the lifting guide post (3) through the through holes.

3. Vacuum box air bag sampler according to claim 2, characterized in that a plurality of balls (15) for reducing friction are mounted between the top of the lifting support plate (2) and the bottom of the turntable (5), and the balls (15) are uniformly distributed along the circumferential direction of the turntable (5).

4. The vacuum box air bag sampler as claimed in claim 1, wherein a communicating groove (7) is formed in one side of the lifting support plate (2) close to the top of the half gear (8), and the lifting support plate (2) is slidably connected with the rack (4) through the communicating groove (7).

5. Vacuum box air bag sampler according to any of the claims 1-4 wherein the first transmission member (11) is a pair of intermeshing bevel gears, both of which are fixedly mounted on the transmission shaft (10) and the rotation shaft (12), respectively.

6. Vacuum box air bag sampler according to any of the claims 1-4 wherein the second transmission element (14) is a transmission pulley or a transmission sprocket.