Clamping device for scanning head of aerosol photometer

Abstract

The utility model discloses an aerosol photometer scanning head clamping device, a clamping assembly comprises a clamping mechanism, two auxiliary mechanisms and an adjusting mechanism, and the two auxiliary mechanisms are installed on the inner sides of two clamping plates on the clamping mechanism and assist the clamping plates in clamping and fixing a scanning head body. Corresponding auxiliary mechanisms are arranged on the inner sides of two clamping plates on a clamping mechanism of the scanning head clamping device, and the auxiliary plates of arc-shaped structures abut against scanning head bodies of different diameters, so that when a first rotation driving piece on the clamping mechanism drives the clamping plates to move relatively to clamp the scanning head bodies, the scanning head bodies are clamped by the clamping plates; and a plurality of linkage rods mounted at the rear end of the auxiliary plate move backwards along a plurality of moving grooves in the clamping plate, so that the metal springs of the elastic pieces which are propped against each other are compressed, and the aerosol photometer scanning heads with different diameters are clamped and fixed by acting force generated by clamping of the clamping plate and elastic potential energy generated by compression of the elastic pieces.

Description

Technical Field

[0001] The utility model relates to the technical field of aerosol detection, in particular to a clamping device for an aerosol photometer scanning head. Background Art

[0002] In production and life, filters are used more and more widely. When detecting the filtration efficiency of a filter, an aerosol photometer is often required to test the filtration efficiency and leakage of the filter. An air inlet of the main body of the aerosol photometer is connected with a handheld leak detector, and a funnel-shaped scanning head is arranged at the end of the handheld leak detector. A blower is arranged in the main body of the aerosol photometer, and the blower causes negative pressure at the scanning head of the handheld leak detector. When detecting the air leakage of a filter, the scanning head is oriented towards the filter and scanned around the filter. By analyzing the gas inhaled by the scanning head through the aerosol main body, it can be determined whether the filter leaks air and locate the positioning points of the filter.

[0003] The existing clamping device for an aerosol photometer scanning head (a clamping device for an aerosol photometer with the application number 201822063416.4) clamps the aerosol photometer scanning head by arranging a clamping mechanism at the front end of a clamping rod. However, no auxiliary mechanism and adjustment mechanism are arranged on the clamping device, so that the clamping device cannot perform auxiliary clamping on scanning heads with different diameters and adjust the scanning position, which affects the detection of the air leakage of the filter by the aerosol photometer. Summary of the Utility Model

[0004] In view of the above defects or deficiencies in the prior art, it is desirable to provide a clamping device for an aerosol photometer scanning head, which is used to solve the technical problem that the existing clamping device for an aerosol photometer scanning head does not arrange an auxiliary mechanism and an adjustment mechanism on the clamping assembly, so that the clamping device cannot perform auxiliary clamping on scanning heads with different diameters and adjust the scanning position, which affects the detection of the air leakage of the filter by the aerosol photometer.

[0005] According to the technical solution provided by the embodiment of the present application, a clamping device for an aerosol photometer scanning head includes a clamping assembly and a moving assembly. The clamping assembly is installed on a slide rail of the moving assembly so that the clamping assembly can move along the slide rail.

[0006] The clamping assembly includes a clamping mechanism, two auxiliary mechanisms and an adjustment mechanism. The two auxiliary mechanisms are installed on the inner sides of two clamping plates of the clamping mechanism to assist the clamping plates in clamping and fixing the scanning head body, and the adjustment mechanism is horizontally installed at the rear end of the clamping mechanism for adjusting the scanning position of the scanning head body clamped and fixed on the clamping mechanism.

[0007] The auxiliary mechanism includes an auxiliary plate, a plurality of linkage rods, and a plurality of elastic members. The plurality of linkage rods are movably installed in corresponding moving grooves provided on the clamping plate. The plurality of linkage rods are arranged side by side and spaced apart in the vertical direction, and the plurality of linkage rods are fixedly installed at the rear end of the auxiliary plate. Each linkage rod abuts against a corresponding elastic member installed in the moving groove.

[0008] The adjusting mechanism includes a telescopic driving member and a telescopic rod. The front end of the telescopic rod is fixedly connected to the chassis on the clamping mechanism, and the rear end of the telescopic rod is fixedly connected to the output end of the telescopic driving member, so that the telescopic driving member drives the telescopic rod to adjust its length in the horizontal direction, thereby driving the scanning head body clamped by the clamping mechanism to adjust its position.

[0009] Further, the auxiliary plate is an arc-shaped structural plate, and the elastic member is a metal spring.

[0010] Further, the clamping mechanism includes a first rotation driving member, a first gear, two racks, and two clamping plates. The rear ends of the two clamping plates are fixedly installed with corresponding racks. The two racks are horizontally installed on the upper and lower sides of the first gear and are meshed with the first gear. The first gear is fixedly connected to the output end of the first rotation driving member, so that the first rotation driving member drives the two clamping plates to move relative to each other along the sliding groove on the chassis to clamp the scanning head body.

[0011] Further, a positioning groove is further provided on the rack, and the positioning groove is slidably clamped on a positioning slide rail provided in the chassis, so that the rack moves in a positioned manner along the positioning slide rail.

[0012] Further, the moving assembly includes a moving box, a second rotation driving member, and a second gear. The moving box is installed on the slide rail, and a ring-shaped tooth is provided on the outer side of the slide rail. The second gear is meshed with the tooth, and the second gear is fixedly connected to the output end of the second rotation driving member, so that the second rotation driving member drives the moving box installed with the second gear to move along the slide rail, and adjusts the scanning head body clamped and fixed by the clamping assembly to rotate around the filter.

[0013] In summary, the beneficial effects of the present application:

[0014] 1. By arranging corresponding auxiliary mechanisms on the inner sides of two clamping plates of the clamping mechanism of the scanning head clamping device, the arc-shaped auxiliary plates are abutted against the scanning head bodies with different diameters. When the first rotation driving member on the clamping mechanism drives the clamping plates to move relatively to clamp the scanning head bodies, several linkage rods installed at the rear ends of the auxiliary plates move backward along several moving grooves on the clamping plates, thereby compressing each elastic member, the metal spring, in contact, so that the acting force generated by the clamping of the clamping plates and the elastic potential energy generated by the compression of the elastic members clamp and fix the aerosol photometer scanning heads with different diameters, thereby improving the clamping and fixing efficiency of the clamping device for the aerosol photometer scanning heads;

[0015] 2. By setting the original manual telescopic rod into an electric telescopic type, the telescopic rod on the adjusting mechanism can, under the drive of the telescopic driving member, adjust the telescopic length according to the diameter size of the filter to be scanned and detected, so that the distance of the scanning head clamped and fixed by the clamping device can be adjusted according to the scanning position, improving the detection efficiency of the aerosol photometer for the air leakage condition of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, purposes and advantages of the present application will become more obvious by reading the detailed description of the non-restrictive embodiments with reference to the following drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 It is a schematic exploded view of the present utility model;

[0019] Figure 3 It is a schematic front exploded view of the clamping assembly of the present utility model;

[0020] Figure 4 It is a schematic rear exploded view of the clamping assembly of the present utility model;

[0021] Figure 5 It is a schematic cross-sectional view of the clamping plate of the present utility model.

[0022] Reference numerals in the drawings: clamping assembly - 100, clamping mechanism - 110, clamping plate - 111, first rotation driving member - 112, first gear - 113, rack - 114, positioning groove - 1141, positioning slide rail - 115, auxiliary mechanism - 120, auxiliary plate - 121, linkage rod - 122, elastic member - 123, adjusting mechanism - 130, telescopic driving member - 131, telescopic rod - 132, moving assembly - 200, slide rail - 210, moving box - 220, second rotation driving member - 230, second gear - 240, scanning head body - 300. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant utility model and are not intended to limit the utility model. In addition, it should be noted that for the sake of description, only the parts related to the utility model are shown in the drawings.

[0024] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and embodiments.

[0025] A clamping device for an aerosol photometer scanning head, the structure of which is as Figures 1 - 5 shown, including a clamping assembly 100 and a moving assembly 200. The clamping assembly 100 is installed on a slide rail 210 of the moving assembly 200, so that the clamping assembly 100 can move along the slide rail 210, so that the scanning head body 300 clamped and fixed by the clamping assembly 100 performs a moving scan on the outside of the filter; the clamping assembly 100 includes a clamping mechanism 110, two auxiliary mechanisms 120 and an adjusting mechanism 130. The two auxiliary mechanisms 120 are installed on the inner sides of two clamping plates 111 of the clamping mechanism 110. The auxiliary clamping plates 111 clamp and fix the scanning head body 300, and the adjusting mechanism 130 is horizontally installed at the rear end of the clamping mechanism 110 for adjusting the scanning position of the scanning head body 300 clamped and fixed on the clamping mechanism 110; the auxiliary mechanism 120 includes an auxiliary plate 121, a plurality of linkage rods 122 and a plurality of elastic members 123. The plurality of linkage rods 122 are movably installed in corresponding moving grooves provided on the clamping plates 111, and the plurality of linkage rods 122 are arranged side by side and spaced apart in the vertical direction, and the plurality of linkage rods 122 are fixedly installed at the rear end of the auxiliary plate 121. Each linkage rod 122 abuts against a corresponding elastic member 123 installed in the moving groove, so that after the scanning head body 300 with different diameters is placed between the two auxiliary plates 121, the plurality of linkage rods 122 fixedly connected to the rear end of the auxiliary plate 121 are pushed to move outward along the horizontal direction of the moving groove, thereby compressing each of the abutting elastic members 123, so that the auxiliary mechanism 120 assists in fixing different-diameter scanning heads clamped by the clamping mechanism 110; the adjusting mechanism 130 includes a telescopic driving member 131 and a telescopic rod 132. The telescopic driving member 131 is horizontally installed inside a moving box 220 on the moving mechanism, and the front end of the telescopic rod 132 is fixedly connected to the chassis on the clamping mechanism 110, and the rear end of the telescopic rod 132 is fixedly connected to the output end of the telescopic driving member 131, so that the telescopic driving member 131 drives the telescopic rod 132 to adjust the length along the horizontal direction, thereby driving the scanning head body 300 clamped by the clamping mechanism 110 to adjust the position.

[0026] When the clamping device clamps and fixes the scanning head of the aerosol photometer, the operator places the scanning head between two auxiliary plates 121, so that the auxiliary plates 121 move outward under the push of the scanning head, thereby driving a plurality of linkage rods 122 to move horizontally along each moving groove, compressing the elastic members 123, i.e., metal springs, abutted by the respective linkage rods 122. At the same time, the first rotation driving member 112 on the clamping mechanism 110 is started, so that the first rotation driving member 112 drives the first gear 113 to rotate, thereby causing the two racks 114 engaged with the first gear 113 to move relatively along the horizontal direction, driving the two clamping plates 111 fixedly installed with the two racks 114 to clamp and fix the scanning head body 300 clamped on the auxiliary plate 121 along the horizontal direction, so that the acting force generated by the clamping of the clamping plates 111 and the elastic potential energy generated by the compression of the elastic members 123 clamp and fix aerosol photometer scanning heads of different diameters, thereby improving the clamping and fixing efficiency of the clamping device for the aerosol photometer scanning head. At the same time, the adjusting mechanism 130 is started, so that the telescopic rod 132 on the adjusting mechanism 130 is driven by the telescopic driving member 131 to adjust the telescopic length of the telescopic rod 132 according to the diameter of the filter to be scanned and detected, so that the distance of the scanning head clamped and fixed by the clamping device can be adjusted according to the scanning position. At the same time, the second rotation driving member 230 on the moving mechanism is started, so that the second rotation driving member 230 drives the second gear 240 to rotate, causing the clamped aerosol photometer scanning head to move along the slide rail 210 to perform a moving scan on the outside of the filter, thereby determining the air leakage position, and thus improving the detection efficiency of the aerosol photometer for the air leakage condition of the filter.

[0027] As a preferred embodiment, please refer to Figure 3 and Figure 5 , the auxiliary plate 121 is an arc-shaped structural plate, which is convenient for the auxiliary plate 121 to assist in fixing the scanning head with an arc-shaped structure, and the elastic member 123 is a metal material spring, so that the elastic potential energy generated after the compression of the elastic member 123, i.e., the metal spring, assists the clamping mechanism 110 to fix scanning heads of different diameters.

[0028] As a preferred embodiment, please refer to Figure 3 and Figure 4, a clamping mechanism 110, which includes a first rotation driving member 112, a first gear 113, two racks 114 and two clamping plates 111. Corresponding racks 114 are fixedly installed at the rear ends of the two clamping plates 111, and the two racks 114 are horizontally installed on the upper and lower sides of the first gear 113 and are meshed with the first gear 113. The first gear 113 is fixedly connected to the output end of the first rotation driving member 112, so that the first rotation driving member 112 drives the first gear 113 to rotate, thereby causing the two racks 114 meshed with the first gear 113 to move relatively in the horizontal direction, and thus causing the two clamping plates 111 fixedly installed with the corresponding racks 114 to move relatively along the sliding grooves on the chassis, and clamping and fixing the scanning head body 300 that is assisted and fixed by the two auxiliary plates 121 on the auxiliary mechanism 120.

[0029] As a preferred embodiment, please refer to Figure 3 and Figure 4 , a positioning groove 1141 is further provided on the rack 114, and the positioning groove 1141 is slidably clamped on the positioning slide rail 115 provided in the chassis, so that the rack 114 moves along the positioning slide rail 115 for positioning.

[0030] As a preferred embodiment, please refer to Figure 1 and Figure 2 , the moving assembly 200 includes a moving box 220, a second rotation driving member 230 and a second gear 240. The moving box 220 is installed on the slide rail 210, and a ring-shaped tooth structure is provided on the outer side of the slide rail 210. The second gear 240 is meshed with the tooth structure, and the second gear 240 is fixedly connected to the output end of the second rotation driving member 230, so that the second rotation driving member 230 drives the second gear 240 to move along the ring-shaped tooth structure, thereby driving the moving box 220 installed with the second gear 240 to move along the slide rail 210, so that the scanning head body 300 clamped and fixed by the clamping assembly 100 rotates around the filter, and performs a moving scan on the outer side of the filter, thereby determining the air leakage position, and thus improving the detection efficiency of the aerosol photometer for the air leakage condition of the filter.

[0031] The working principle of the present utility model is:

[0032] When the clamping device clamps and fixes the scanning head of the aerosol photometer, the operator places the scanning head between two auxiliary plates 121, so that the auxiliary plates 121 move outward under the push of the scanning head, thereby driving a number of linkage rods 122 to move horizontally along each moving groove, compressing the elastic members 123, i.e., metal springs, abutted by the linkage rods 122. At the same time, the first rotation driving member 112 on the clamping mechanism 110 is started, so that the first rotation driving member 112 drives the first gear 113 to rotate, thereby causing the two racks 114 engaged with the first gear 113 to move relatively along the horizontal direction, driving the two clamping plates 111 fixedly installed with the two racks 114 to clamp and fix the scanning head body 300 clamped on the auxiliary plate 121 along the horizontal direction, so that the acting force generated by the clamping of the clamping plate 111 and the elastic potential energy generated by the compression of the elastic member 123 can clamp and fix the aerosol photometer scanning heads with different diameters, thereby improving the clamping and fixing efficiency of the clamping device for the aerosol photometer scanning head. At the same time, the adjusting mechanism 130 is started, so that the telescopic rod 132 on the adjusting mechanism 130 is driven by the telescopic driving member 131 to adjust the telescopic length of the telescopic rod 132 according to the diameter of the filter to be scanned and detected, so that the scanning head clamped and fixed by the clamping device can adjust the distance according to the scanning position. At the same time, the second rotation driving member 230 on the moving mechanism is started, so that the second rotation driving member 230 drives the second gear 240 to rotate, and the second gear 240 moves along the toothed teeth of the annular groove engaged therewith, so that the moving box 220 fixedly installed with the second gear 240 moves along the annular slide rail 210, so that the clamped and fixed aerosol photometer scanning head moves along the slide rail 210 to perform a moving scan on the outside of the filter, thereby determining the air leakage position, and improving the detection efficiency of the aerosol photometer for the air leakage condition of the filter.

[0033] The beneficial effects of the present utility model are as follows:

[0034] First, by arranging a corresponding auxiliary mechanism 120 on the inner sides of the two clamping plates 111 of the clamping mechanism 110 of the scanning head clamping device, the arc-shaped auxiliary plates 121 are abutted against the scanning head bodies 300 with different diameters. When the first rotation driving member 112 on the clamping mechanism 110 drives the clamping plates 111 to move relatively to clamp the scanning head bodies 300, a number of linkage rods 122 installed at the rear ends of the auxiliary plates 121 move backward along a number of moving grooves on the clamping plates 111, thereby compressing the respective elastic members 123, i.e., metal springs, abutted thereagainst, so that the acting force generated by the clamping of the clamping plates 111 and the elastic potential energy generated by the compression of the elastic members 123 clamp and fix the aerosol photometer scanning heads with different diameters, thereby improving the clamping and fixing efficiency of the clamping device for the aerosol photometer scanning head;

[0035] Second, by setting the original manual telescopic rod 132 to an electric telescopic type, the telescopic rod 132 on the adjusting mechanism 130 can be adjusted in terms of its telescopic length according to the diameter of the filter to be scanned and detected as required under the drive of the telescopic drive member 131, so that the distance of the scanning head clamped and fixed by the clamping device can be adjusted according to the scanning position, thereby improving the detection efficiency of the aerosol photometer for the air leakage of the filter.

[0036] The above description is only for the preferred embodiments of the present application and the description of the technical principle and other solutions used. At the same time, the scope of the utility model involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept of the utility model. For example, the technical solutions formed by the mutual replacement of the above features with the technical features (but not limited to) disclosed in the present application that have similar functions.

Claims

1. An aerosol photometer scanning head clamping device, comprising a clamping component (100) and a moving component (200), wherein the clamping component (100) is mounted on a slide rail (210) on the moving component (200) so that the clamping component (100) can move along the slide rail (210), wherein: The clamping assembly (100) comprises a clamping mechanism (110), two auxiliary mechanisms (120) and an adjustment mechanism (130), wherein the two auxiliary mechanisms (120) are mounted on the inner sides of two clamping plates (111) on the clamping mechanism (110) to assist the clamping plates (111) in clamping and fixing the scanning head body (300), and the adjustment mechanism (130) is mounted horizontally at the rear end of the clamping mechanism (110) to adjust the scanning position of the scanning head body (300) clamped and fixed on the clamping mechanism (110); The auxiliary mechanism (120) comprises an auxiliary plate (121), a plurality of linkage rods (122) and a plurality of elastic members (123), wherein the plurality of linkage rods (122) are movably mounted in corresponding movable grooves provided on the clamping plate (111), and the plurality of linkage rods (122) are arranged in parallel and at intervals along a vertical direction, and the plurality of linkage rods (122) are fixedly mounted on the rear end of the auxiliary plate (121), and each linkage rod (122) abuts against the corresponding elastic member (123) installed in the movable groove; The adjustment mechanism (130) comprises a telescopic driving member (131) and a telescopic rod (132), wherein a front end of the telescopic rod (132) is fixedly connected to a chassis on the clamping mechanism (110), and a rear end of the telescopic rod (132) is fixedly connected to an output end of the telescopic driving member (131), so that the telescopic driving member (131) drives the telescopic rod (132) to adjust its length in a horizontal direction, thereby driving the scanning head body (300) clamped by the clamping mechanism (110) to adjust its position.

2. The aerosol photometer scanning head clamping device according to claim 1, characterized in that: The auxiliary plate (121) is an arc-shaped structural plate, and the elastic member (123) is a metal spring.

3. The aerosol photometer scanning head clamping device according to claim 1, characterized in that: The clamping mechanism (110) comprises a first rotating driving member (112), a first gear (113), two racks (114) and two clamping plates (111), wherein the rear ends of the two clamping plates (111) are fixedly mounted with corresponding racks (114), and the two racks (114) are horizontally mounted on the upper and lower sides of the first gear (113) and meshedly connected with the first gear (113), and the first gear (113) is fixedly connected with the output end of the first rotating driving member (112), so that the first rotating driving member (112) drives the two clamping plates (111) to move relatively along the slide groove on the chassis to clamp the scanning head body (300).

4. The aerosol photometer scanning head clamping device according to claim 3, characterized in that: The rack (114) is also provided with a positioning groove (1141), and the positioning groove (1141) is slidably engaged with a positioning slide rail (115) provided in the chassis, so that the rack (114) can be positioned and moved along the positioning slide rail (115).

5. The aerosol photometer scanning head clamping device according to claim 1, characterized in that: The moving assembly (200) comprises a moving box (220), a second rotating driving member (230) and a second gear (240); the moving box (220) is mounted on the slide rail (210), and teeth of an annular structure are arranged on the outer side of the slide rail (210); the second gear (240) is meshedly connected with the teeth, and the second gear (240) is fixedly connected with the output end of the second rotating driving member (230), so that the second rotating driving member (230) drives the moving box (220) on which the second gear (240) is mounted to move along the slide rail (210), and the scanning head body (300) clamped and fixed by the clamping assembly (100) is adjusted to rotate around the filter.

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