CN217586463U

CN217586463U - Air particulate matter sample thief convenient to change filter membrane

Info

Publication number: CN217586463U
Application number: CN202221236137.3U
Authority: CN
Inventors: 柴鹏; 宋惠兰; 苏会妙
Original assignee: Hebei Green Ring Environmental Technology Co ltd
Current assignee: Hebei Green Ring Environmental Technology Co ltd
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2022-10-14
Anticipated expiration: 2032-05-20

Abstract

The utility model discloses an air particulate matter sample thief convenient to change filter membrane, including air particulate matter sample thief main part, fix connecting pipe, the collection head of setting in the connecting pipe upper end and place the filter membrane in the connecting pipe on air particulate matter sample thief main part top, connecting pipe outer wall both sides all are fixed with the guide post, the guide way is seted up to both sides around the collection head is inside, movable storehouse has all been seted up to the collection head bottom left and right sides, all install the movable block in the movable storehouse. Through setting up the mutually supporting of activity storehouse, movable block, reference column, knot piece, locating hole and reset spring, let in two sets of reference columns can imbed fast or leave the locating hole of connecting pipe both sides, let two sets of reference columns form fast or relieve the limiting displacement to the mining head, form fast or relieve the connection between mining head and the connecting pipe for the filter membrane need not to use extra instrument when changing, has improved the convenience when the device uses.

Description

Air particulate matter sample thief convenient to change filter membrane

Technical Field

The utility model relates to a particulate matter sample thief technical field especially relates to an air particulate matter sample thief convenient to change filter membrane.

Background

The air particulate matter sampler is used for capturing total suspended particles and inhalable particles in ambient atmosphere by a filter membrane weighing method and is used for conventional detection of aerosol.

Present air particulate matter sample thief on the market needs to separate pick head and connecting pipe when changing the filter membrane, changes the filter membrane in the connecting pipe afterwards, and most carry out fixed connection through traditional bolt between pick head and the connecting pipe, in the in-service use process, when changing the filter membrane, need adopt specific instrument to change, it is long when having increased the change, for this we propose the air particulate matter sample thief of being convenient for to change the filter membrane in order to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides an air particulate matter sampler convenient to change filter membrane to solve the problem of proposing in the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides an air particulate matter sample thief convenient to change filter membrane, includes air particulate matter sample thief main part, fixes at the connecting pipe on air particulate matter sample thief main part top, sets up the collecting head on the connecting pipe and places the filter membrane in the connecting pipe, connecting pipe outer wall both sides all are fixed with the guide post, the guide way is seted up to the inside front and back both sides of collecting head, movable storehouse has all been seted up to the collecting head bottom left and right sides, all install the movable block in the movable storehouse, two sets of movable block subtend one end all is fixed with the reference column, movable block bottom outer wall is fixed with detains the piece, the locating hole has all been seted up to connecting pipe both sides outer wall, and is two sets of locating hole on the reference column subtend embedding connecting pipe, be provided with reset spring in the movable storehouse.

As a preferred technical scheme of the utility model, it is two sets of the movable bin all rotates from one end mutually and is connected with the rotary column, the rotary column outer wall all is fixed with the shrouding, the shrouding covers in the movable bin bottom.

As an optimal technical scheme of the utility model, the movable block outer wall fully contacts with activity storehouse inner wall, the movable block is sliding connection with the activity storehouse.

As a preferred technical scheme of the utility model, reset spring both ends are connected respectively with movable block outer wall and activity storehouse inner wall, the movable block passes through reset spring and forms elastic connection with the activity storehouse.

As an optimized technical proposal of the utility model, the bottom surface of the buckling block and the bottom end of the movable bin are positioned on the same horizontal plane.

As a preferred technical scheme of the utility model, multiunit antiskid recess has been seted up to the rotary column bottom outer wall.

Compared with the prior art, the utility model discloses the beneficial effect that can reach is:

1. through the mutual matching of the movable bin, the movable block, the positioning columns, the buckling blocks, the positioning holes and the reset springs, the two groups of positioning columns can be quickly embedded into or separated from the positioning holes on the two sides of the connecting pipe, the two groups of positioning columns quickly form or remove the limiting effect on the collecting head, and the connection between the collecting head and the connecting pipe is quickly formed or removed, so that an additional tool is not needed when the filter membrane is replaced, and the convenience of the device in use is improved;

2. through setting up at the rotatable shrouding in the activity storehouse outside, let the rotary column drive the shrouding and rotate, let the shrouding rotate to activity storehouse bottom end outside back, the shrouding can form the sealing to the activity storehouse inner space, has avoided external foreign matter to move about in the storehouse, prevents that the inside production in activity storehouse from blockking up, has ensured the normal use of device.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic view of a partial cross-sectional structure of the present invention;

fig. 3 is a schematic view of the split structure of the present invention;

fig. 4 is an enlarged view of a in fig. 1 according to the present invention;

fig. 5 is an enlarged view of B in fig. 2 according to the present invention;

fig. 6 is an enlarged view of C in fig. 3 according to the present invention;

in the drawings, the reference numbers indicate the following list of parts:

1. an air particulate matter sampler main body; 2. a connecting pipe; 3. a pick head; 4. filtering the membrane; 5. a guide post; 6. a guide groove; 7. a movable bin; 8. a movable block; 9. a positioning column; 10. buckling blocks; 11. positioning holes; 12. a return spring; 13. rotating the column; 14. and (7) closing the plate.

Detailed Description

In order to make the technical means, creation features, achievement objects and functions of the present invention easy to understand, the present invention will be further explained with reference to the following embodiments, however, the following embodiments are only preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the embodiment, those skilled in the art can obtain other embodiments without making creative efforts, and all of them belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

The embodiment is as follows:

as shown in fig. 1-6, an air particulate sampler convenient for replacing a filter membrane comprises an air particulate sampler main body 1, a connecting pipe 2 fixed at the top end of the air particulate sampler main body 1, a collecting head 3 arranged at the upper end of the connecting pipe 2 and a filter membrane 4 placed in the connecting pipe 2, guide posts 5 are fixed on both sides of the outer wall of the connecting pipe 2, guide grooves 6 are formed in the front and back sides of the interior of the collecting head 3, movable bins 7 are formed in both the left and right sides of the bottom end of the collecting head 3, movable blocks 8 are mounted in the movable bins 7, positioning posts 9 are fixed at opposite ends of the two groups of movable blocks 8, fastening blocks 10 are fixed on the outer wall of the bottom end of each movable block 8, positioning holes 11 are formed in both outer walls of both sides of the connecting pipe 2, the two groups of positioning posts 9 are oppositely embedded into the positioning holes 11 in the connecting pipe 2, and return springs 12 are arranged in the movable bins 7;

when the filter membrane 4 needs to be replaced, two groups of buckling blocks 10 are buckled in the opposite direction, the two groups of buckling blocks 10 drive the movable block 8 to slide along the inside of the movable bin 7, the reset springs 12 in the two groups of movable bins 7 receive the extrusion deformation force of the movable block 8, when the two groups of positioning columns 9 are driven by the movable block 8 to completely leave the positioning holes 11 on the two sides of the connecting pipe 2, at the moment, the two groups of positioning columns 9 relieve the movable limiting effect on the collecting head 3, at the moment, the collecting head 3 can be pulled upwards to be separated from the connecting pipe 2, then, the filter membrane 4 in the connecting pipe 2 can be replaced, when the filter membrane 4 needs to be installed, the two groups of guide grooves 6 at the bottom ends of the two groups of collecting heads 3 are aligned with the two groups of guide posts 5 on the outer wall of the connecting pipe 2 to be vertically inserted downwards, when the two groups of positioning columns 9 on the collecting head 3 are driven by the collecting head 3 to move to the positioning holes 11 on the two sides of the connecting pipe 2, at the moment, the two groups of buckling blocks 10 are relieved, the two groups of positioning columns 9 release the elastic force to push the two groups of movable blocks 8 to slide in the opposite directions, when the positioning posts 9 are embedded into the positioning holes 9, the connecting pipe 2, and the connecting pipe can be connected with the limiting device, and the collecting head, and the limiting device can be conveniently formed by the connecting pipe 2, and the positioning holes 11, at the collecting head 3, at the collecting head.

In other embodiments, the two opposite ends of the movable bins 7 are rotatably connected with rotating columns 13, sealing plates 14 are fixed on the outer walls of the rotating columns 13, and the sealing plates 14 cover the bottom ends of the movable bins 7;

through rotatory rotary column 13 during the use, let rotary column 13 drive shrouding 14 and rotate, after shrouding 14 rotates 7 bottoms outsidess in the activity storehouse, shrouding 14 can form the sealing to 7 inner spaces in the activity storehouse, has avoided external foreign matter to move about in the storehouse 7, prevents that 7 inside productions in the activity storehouse from blockking up, has ensured the normal use of device.

In other embodiments, the outer wall of the movable block 8 is fully contacted with the inner wall of the movable bin 7, and the movable block 8 is in sliding connection with the movable bin 7;

through this design, slide along activity 7 insides in storehouse when the movable block 8, avoided the movable block 8 to produce great rocking in the motion process, improved the stability when the device uses.

In other embodiments, two ends of the return spring 12 are respectively connected with the outer wall of the movable block 8 and the inner wall of the movable bin 7, and the movable block 8 is elastically connected with the movable bin 7 through the return spring 12;

through this design, have the effort of lasting subtend when two sets of movable blocks 8 under reset spring 12's elasticity effect, let two sets of reference columns 9 can imbed in the locating hole 11 of connecting pipe 2 both sides fast under the drive of movable block 8.

In other embodiments, the bottom end surface of the buckle block 10 and the bottom end of the movable bin 7 are positioned on the same horizontal plane;

through this design, let detain piece 10 and be located activity storehouse 7 insidely, prevent to detain that the block 10 is easy to be touched detaining piece 10 mistake behind the protrusion activity storehouse 7.

In other embodiments, the outer wall of the bottom end of the rotary column 13 is provided with a plurality of groups of anti-slip grooves;

through this design, when needs rotate rotary column 13, can effectively increase the frictional force between rotary column 13 and the hand, be convenient for rotate rotary column 13.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an air particulate matter sample thief convenient to change filter membrane, includes air particulate matter sample thief main part (1), fixes connecting pipe (2) on air particulate matter sample thief main part (1) top, sets up in the collection head (3) of connecting pipe (2) upper end and places filter membrane (4) in connecting pipe (2), its characterized in that: connecting pipe (2) outer wall both sides all are fixed with guide post (5), guide way (6) are seted up to both sides around collection head (3) is inside, movable storehouse (7) have all been seted up to collection head (3) bottom left and right sides, all install movable block (8) in the activity storehouse (7), it is two sets of movable block (8) subtend one end all is fixed with reference column (9), movable block (8) bottom outer wall is fixed with knot piece (10), locating hole (11) have all been seted up to connecting pipe (2) both sides outer wall, and are two sets of locating hole (11) on reference column (9) subtend embedding connecting pipe (2), be provided with reset spring (12) in activity storehouse (7).

2. The air particulate sampler of claim 1, wherein the filter membrane is replaceable by: two sets of activity storehouse (7) one end of keeping away from each other all rotates and is connected with rotary column (13), rotary column (13) outer wall all is fixed with shrouding (14), shrouding (14) cover is in activity storehouse (7) bottom.

3. The air particulate sampler of claim 1, wherein the filter membrane is replaceable by: the outer wall of the movable block (8) is in full contact with the inner wall of the movable bin (7), and the movable block (8) is in sliding connection with the movable bin (7).

4. The air particulate sampler of claim 1, wherein the filter membrane is replaceable by: reset spring (12) both ends are connected respectively with movable block (8) outer wall and activity storehouse (7) inner wall, movable block (8) form elastic connection through reset spring (12) and activity storehouse (7).

5. The air particulate sampler of claim 1, wherein the filter membrane is replaceable by: the bottom end surface of the buckling block (10) and the bottom end of the movable bin (7) are positioned on the same horizontal plane.

6. The air particulate sampler of claim 2, wherein the filter membrane is replaceable by: the outer wall of the bottom end of the rotating column (13) is provided with a plurality of groups of anti-skidding grooves.