Telescopic atmospheric particulate sampling head

Abstract

The utility model relates to the technical field of atmospheric environment monitoring equipment, in particular to a telescopic atmospheric particulate sampling head, which is characterized in that a support is fixedly arranged on a base, a plurality of support sleeves are sequentially sleeved from inside to outside, the support sleeve positioned on the inner side is inserted into the upper port of the adjacent support sleeve positioned on the outer side, and the support sleeve positioned on the outermost side is fixedly arranged on the base; the sampling head is fixedly arranged at the upper end of the supporting sleeve on the innermost side, the threaded sleeve is rotationally arranged on an upper port of the supporting sleeve through a bearing, the adjacent supporting sleeves on the inner side movably penetrate through the threaded sleeve, the threads are fixedly arranged on the outer side wall of the supporting sleeve, and the supporting sleeve is meshed with the threaded sleeve arranged on the supporting sleeve in a sleeving mode through the threads; the supporting plate is fixedly arranged on the lower end opening of the supporting sleeve, and the side edge of the supporting plate movably abuts against the inner side wall of the adjacent supporting sleeve on the outer side.

Description

TECHNICAL FIELD

[0001] The utility model relates to atmospheric environment monitoring equipment technical field, concretely relates to a telescopic atmospheric particulate matter sampling head. BACKGROUND

[0002] Atmospheric particulate matter content is an important data of atmospheric air quality standard, when collecting atmospheric particulate matter with sampling head to carry out analysis and detection, sampling head needs to be elevated to specified height according to requirement and work, the height is higher relative to collection sampling equipment, the structure of the traditional rod-shaped mounting bracket is used to install and fix sampling head, which will occupy more public space, and the larger mounting bracket will affect the air flow around the detection head, so that the collection of sampling head is not accurate enough, and because the structure makes the maintenance of sampling head change, so that sampling head is exposed to the external high-altitude environment for a long time, which can shorten the service life of the equipment, therefore, a telescopic sampling head is designed, which is lowered and retracted for covering protection when not in use, which is a feasible means to prolong the service life of the equipment and protect the safety of the equipment. SUMMARY

[0003] The utility model discloses a telescopic atmospheric particulate matter sampling head, which adopts a sleeve joint structure of multiple support sleeves, sets a guide support structure between adjacent support sleeves and sets a corresponding driving structure for each support sleeve, and sets a movable and adjustable driving structure on the side of the equipment, so that the telescopic movement of the sampling head is realized by controlling and adjusting the lifting movement of each support sleeve.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] It comprises a base and a support, wherein the support is fixedly arranged on the base, and it further comprises:

[0006] A support sleeve, the support sleeve is a plurality of and is arranged in sequence from inside to outside, wherein the support sleeve located on the inside is inserted into the upper port of the adjacent support sleeve located on the outside, and the support sleeve located on the outermost side is fixedly arranged on the base;

[0007] A sampling head, the sampling head is fixedly arranged on the upper end of the innermost support sleeve;

[0008] A threaded sleeve, the threaded sleeve is rotatably arranged on the upper port of the support sleeve through a bearing, and the adjacent support sleeve located on the inside is movably arranged in the threaded sleeve;

[0009] A screw thread, the screw thread is fixedly arranged on the outer side wall of the support sleeve, and the support sleeve is engaged with the threaded sleeve arranged on the support sleeve through the screw thread;

[0010] Supporting plate, the supporting plate is fixedly arranged on the lower end of the supporting sleeve, and the side edge of the supporting plate is movably arranged on the inner side wall of the outer adjacent supporting sleeve.

[0011] Preferably, the supporting sleeve is provided with a supporting spring, the lower end of the supporting spring is fixedly arranged on the upper surface of the supporting plate of the lower end of the supporting sleeve, and the upper end of the supporting spring is movably arranged on the lower surface of the supporting plate of the lower end of the inner adjacent supporting sleeve.

[0012] Preferably, the inner side wall of the supporting sleeve is fixedly provided with a guide slide rail, and the supporting plate of the lower end of the inner adjacent supporting sleeve is movably arranged on the guide slide rail.

[0013] Preferably, the bracket is fixedly provided with a lifting slide rail, a lifting stepping unit is arranged on the lifting slide rail, a lifting seat is fixedly arranged on the lifting stepping unit, a driving sleeve is rotatably arranged on the lifting seat through a bearing, the driving sleeve is sleeved on the outside of the outermost supporting sleeve, and the driving sleeve is arranged in cooperation with a threaded sleeve.

[0014] Preferably, a plurality of positioning blocks are fixedly arranged on the outer side wall of the threaded sleeve at equal angles, and a clamping block is fixedly arranged on the inner side wall of the driving sleeve, and the clamping block is arranged in cooperation with the positioning blocks.

[0015] Preferably, a servo motor is fixedly arranged on the lifting seat, a main gear is fixedly arranged on the output shaft of the servo motor, a secondary gear is fixedly sleeved on the driving sleeve, and the main gear and the secondary gear are arranged in meshing.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] 1. The supporting sleeve is arranged in the inner and outer sleeves, the corresponding threaded sleeve is arranged in cooperation with the screw threads on the outer side wall of the supporting sleeve, the threaded sleeve is rotated to drive the supporting sleeve to move up and down, and the sampling head is moved up and down.

[0018] 2. The driving sleeve is arranged on the lifting seat which can move up and down, the clamping block is arranged in the driving sleeve, and the positioning block on the threaded sleeve is arranged in cooperation with the clamping block, so that the position of the driving sleeve is adjusted and the corresponding threaded sleeve is connected, so that the threaded sleeve is driven to move to drive the supporting sleeve to move. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present application.

[0020] Figure 2 It is a structural schematic diagram of the supporting sleeve and the threaded sleeve in the present application.

[0021] Figure 3 It is a structural schematic diagram of the supporting sleeve and the supporting spring in the present application.

[0022] Figure 4 Figure 1 is a structural diagram of the lifting seat and driving sleeve in the utility model.

[0023] Mark explanation:

[0024] Base 1, support 2, support sleeve 3, sampling head 4, threaded sleeve 5, screw 6, support plate 7, support spring 8, guide slide rail 9, lifting slide rail 10, lifting stepping unit 11, lifting seat 12, driving sleeve 13, positioning block 14, clamping block 15, servo motor 16, main gear 17, auxiliary gear 18. Specific implementation

[0025] The technical solutions in the utility model will be described clearly and completely in combination with the drawings. The preferred embodiments in the description are only taken as examples, and all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] As shown in Figures 1-4 , the specific implementation adopts the following technical solutions:

[0027] It comprises base 1 and support 2, wherein the support 2 is fixedly arranged on the base 1, and it further comprises:

[0028] Support sleeve 3, the support sleeve 3 is several and is arranged in sequence from inside to outside, wherein the support sleeve 3 located on the inside is inserted into the upper end of the adjacent support sleeve 3 located on the outside, and the support sleeve 3 located on the outermost side is fixedly arranged on the base 1;

[0029] Sampling head 4, the sampling head 4 is fixedly arranged on the upper end of the innermost support sleeve 3;

[0030] Support plate 7, the support plate 7 is fixedly arranged on the lower end of the support sleeve 3, and the side edge of the support plate 7 is movably arranged against the inner side wall of the adjacent support sleeve 3 located on the outside;

[0031] Guide slide rail 9, the guide slide rail 9 is fixedly arranged on the inner side wall of the support sleeve 3, and the support plate 7 of the lower end of the adjacent support sleeve 3 located on the inside is movably arranged on the guide slide rail 9;

[0032] Threaded sleeve 5, the threaded sleeve 5 is rotatably arranged on the upper end of the support sleeve 3 through a bearing, and the adjacent support sleeve 3 located on the inside is movably arranged in the threaded sleeve 5;

[0033] Screw 6, the screw 6 is fixedly arranged on the outer side wall of the support sleeve 3, and the support sleeve 3 is engaged with the threaded sleeve 5 arranged on the support sleeve 3 through the screw 6;

[0034] Support spring 8, the support spring 8 is arranged in the lower end of support sleeve 3, wherein the lower end of support spring 8 is fixedly arranged on the upper surface of support plate 7 of the lower end of support sleeve 3, and the upper end of support spring 8 is movably arranged on the lower surface of support plate 7 adjacent to the lower end of support sleeve 3;

[0035] Lifting slide rail 10, the lifting slide rail 10 is fixedly arranged on support 2;

[0036] Lifting step unit 11, the lifting step unit 11 is slidably arranged on lifting slide rail 10;

[0037] Lifting seat 12, the lifting seat 12 is fixedly arranged on lifting step unit 11, and the lifting seat 12 is movably arranged outside the outermost support sleeve 3;

[0038] Drive sleeve 13, the drive sleeve 13 is rotatably arranged on lifting seat 12 through bearing, and the drive sleeve 13 is movably arranged outside the outermost support sleeve 3, and the inner diameter of drive sleeve 13 is greater than the outer diameter of the largest threaded sleeve 5;

[0039] Positioning block 14, the positioning block 14 is fixedly arranged on the outer wall of one threaded sleeve 5 in a group with equal angles;

[0040] Clamping block 15, the clamping block 15 is fixedly arranged on the inner wall of drive sleeve 13, and the clamping block 15 is arranged in cooperation with a group of positioning blocks 14 on one threaded sleeve 5;

[0041] Servo motor 16, the servo motor 16 is fixedly arranged on lifting seat 12;

[0042] Main gear 17, the main gear 17 is fixedly arranged on the output shaft of servo motor 16;

[0043] Secondary gear 18, the secondary gear 18 is fixedly arranged on the outer wall of drive sleeve 13, and the main gear 17 is arranged in cooperation with the secondary gear 18.

[0044] In use of the device, when the device is in the retracted state, each support sleeve 3 is inserted into the outer adjacent support sleeve 3, and the upper end of the support sleeve 3 is outside the upper end of the outer adjacent support sleeve 3, so that the threaded sleeve 5 on the support sleeve 3 from inside to outside is arranged from top to bottom, so that when the sampling head 4 is controlled to move up and down, the support sleeve 3 is controlled to move up and down from inside to outside in turn, so that the sampling head 4 is controlled to move up and down; when one support sleeve 3 is controlled to move up, the lifting step unit 11 is first slid on the lifting slide rail 10 to drive the position of the adjusting lifting seat 12, so that the adjusting lifting seat 12 drives the driving sleeve 13 to move, so that the driving sleeve 13 is sleeved on the threaded sleeve 5 outside the support sleeve 3, and the clamping block 15 inside the driving sleeve 13 is in abutment with the positioning block 14 outside the threaded sleeve 5, then the main gear 17 is rotated by the servo motor 16, the main gear 17 drives the driving sleeve 13 to rotate through the secondary gear 18 engaged with the main gear 17, and the driving sleeve 13 drives the threaded sleeve 5 to rotate through the clamping block 15 and the positioning block 14, so that the support plate 7 on the support sleeve 3 to be moved is arranged on the guide slide rail 9 on the inner wall of the outer adjacent support sleeve 3 to limit the up-down movement of the support sleeve 3, and the threaded sleeve 5 is rotated through the screw 6 engaged with the threaded sleeve 5 to drive the support sleeve 3 to move; when the support sleeve 3 moves up, the screw 6 on the support sleeve 3 moves up and is separated from the threaded sleeve 5, so that the lower end of the support sleeve 3 without the screw 6 is inserted into the upper end of the threaded sleeve 5 and the outer adjacent support sleeve 3, and at this time the support plate 7 at the lower end of the support sleeve 3 is sleeved on the threaded sleeve 5 on the support sleeve 3 to limit the support sleeve 3, so that the outer ring of the support sleeve 3 is prevented from being separated, and when the support sleeve 3 moves down, the screw 6 on the support sleeve 3 is completely moved below the threaded sleeve 5, and the support plate 7 at the lower end of the support sleeve 3 is abutted against the support spring 8 in the outer adjacent support sleeve 3 and is pressed tightly, so that the screw 6 on the support sleeve 3 is always abutted against the lower end of the threaded sleeve 5.

[0045] Compared with the prior art, the device has the advantages that:

[0046] 1、The device is provided with a plurality of sleeved support sleeves 3, and the linear movement of the support sleeve 3 is guided by the guide slide rail 9 and the support plate 7, so that the threaded sleeve 5 is arranged on the upper end of the support sleeve 3, the threaded sleeve 5 is matched with the screw 6 on the inner adjacent support sleeve 3, the threaded sleeve 5 is rotated to control the lifting movement of the support sleeve 3, the sampling head 4 is installed on the innermost support sleeve 3, and the telescopic control of the sampling head 4 is realized.

[0047] 2、The device sets the movable lifting seat 12 through the lifting stepping unit 11, so that the driving sleeve 13 is set on the lifting seat 12 and is driven through the servo motor 16, so that the positioning block 14 is set on the threaded sleeve 5 and cooperates with the clamping block 15 in the driving sleeve 13, so that the position of the adjustment driving sleeve 13 is driven by the lifting stepping unit 11, the rotation of the corresponding threaded sleeve 5 is controlled, and the movement of the supporting sleeve 3 is realized.

[0048] For those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, and equivalent replacement of part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A retractable atmospheric particulate matter sampling head, comprising a base (1) and a support (2), wherein the support (2) is fixedly mounted on the base (1); characterized in that, It also includes: Support sleeve (3), there are several support sleeves (3) and they are arranged in an inner and outer sequence. The inner support sleeve (3) is inserted into the upper port of the adjacent outer support sleeve (3), and the outermost support sleeve (3) is fixedly set on the base (1). The sampling head (4) is fixedly installed at the upper end of the innermost support sleeve (3); The threaded sleeve (5) is screwed onto the upper port of the support sleeve (3) via a bearing, and the adjacent support sleeve (3) on the inner side is movably inserted into the threaded sleeve (5). The thread (6) is fixedly installed on the outer wall of the support sleeve (3), and the support sleeve (3) is engaged with the threaded sleeve (5) sleeved on the support sleeve (3) through the thread (6); The support plate (7) is fixedly installed on the lower port of the support sleeve (3), and the side of the support plate (7) is movably abutted against the inner side wall of the adjacent support sleeve (3).

2. The retractable atmospheric particulate matter sampling head according to claim 1, characterized in that: The support sleeve (3) is provided with a support spring (8). The lower end of the support spring (8) is fixedly set on the upper surface of the support plate (7) at the lower port of the support sleeve (3). The upper end of the support spring (8) is movably abutted against the lower surface of the support plate (7) at the lower port of the support sleeve (3) located on the inner side.

3. The retractable atmospheric particulate matter sampling head according to claim 2, characterized in that: A guide rail (9) is fixedly installed on the inner wall of the support sleeve (3), and the support plate (7) located at the lower end of the inner adjacent support sleeve (3) is movably mounted on the guide rail (9).

4. A retractable atmospheric particulate matter sampling head according to claim 3, characterized in that: The bracket (2) is fixedly provided with a lifting slide rail (10), the lifting slide rail (10) is provided with a lifting stepping unit (11), the lifting stepping unit (11) is fixedly provided with a lifting seat (12), the lifting seat (12) is provided with a drive sleeve (13) through a bearing, and the drive sleeve (13) is sleeved on the outside of the outermost support sleeve (3), and the drive sleeve (13) is configured to cooperate with the threaded sleeve (5).

5. A retractable atmospheric particulate matter sampling head according to claim 4, characterized in that: The threaded sleeve (5) has several positioning blocks (14) fixedly arranged at equal angles on its outer side wall, and a locking block (15) is fixedly arranged on the inner side wall of the drive sleeve (13). The locking block (15) and the positioning block (14) are configured to cooperate.

6. A retractable atmospheric particulate matter sampling head according to claim 5, characterized in that: A servo motor (16) is fixedly installed on the lifting seat (12). A main gear (17) is fixedly installed on the output shaft of the servo motor (16). A secondary gear (18) is fixedly installed on the drive sleeve (13). The main gear (17) and the secondary gear (18) are meshed.

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