Dust cover capable of being used on inductively coupled plasma mass spectrometer

Abstract

The utility model discloses a dust cover capable of being used on an inductively coupled plasma mass spectrometer, and relates to the technical field of dust covers, the dust cover comprises a sleeve and a protective cover detachably arranged at the top end of the sleeve, and the protective cover is provided with at least one exhaust pipe in a penetrating manner; a first sliding plate is slidably arranged on the inner side wall of the sleeve, the sliding direction of the first sliding plate is parallel to the central axis of the sleeve, and at least one filter plate is detachably arranged on the first sliding plate; a lifting mechanism is arranged on one side of the sleeve and is in transmission connection with the first sliding plate. The filter plate is mounted in the protective cover, so that gas exhausted by the exhaust pipe can be filtered; the lifting mechanism is mounted on the sleeve, so that when the filter plate needs to be cleaned or replaced, the filter plate can be exposed out of the bottom end of the sleeve through the lifting mechanism, and the filter plate can be cleaned or replaced conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to dust cover technical field, specifically, relates to a dust cover that can be used on inductively coupled plasma mass spectrometer. BACKGROUND

[0002] Plasma mass spectrometer, usually refers to inductively coupled plasma mass spectrometer (ICP-MS), it is a kind of instrument for trace and ultra-trace multi-element analysis, isotope ratio analysis, inductively coupled plasma mass spectrometer is placed in dust cover, heat and waste gas generated by instrument operation are discharged through exhaust hood, external air is filtered after passing through filter screen on back transparent glass and enters dust cover, provides cooling air for instrument, guarantees the normal operating temperature of instrument. Experimental personnel can observe the operating state of instrument through transparent glass, and operate and maintain through glass push-pull door and filter screen push-pull door. In the operation process, filter screen can effectively block dust from entering, reduce the influence of dust on instrument.

[0003] Some dust covers used on inductively coupled plasma mass spectrometer are very inconvenient for replacing internal filter screen during use, delay the maintenance and repair of dust cover, increase the investment of maintenance cost, and affect the normal use of dust cover. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the insufficient of prior art, provide a dust cover that can be used on inductively coupled plasma mass spectrometer.

[0005] The utility model aims at overcoming the insufficient of prior art, provide a dust cover that can be used on inductively coupled plasma mass spectrometer.

[0006] A dust cover that can be used on inductively coupled plasma mass spectrometer, including sleeve and the dust cover of detachable setting in sleeve top, at least one exhaust pipe is worn to the dust cover;The inner side wall of sleeve is slidably provided with first sliding plate, the sliding direction of first sliding plate is parallel with the central axis of sleeve, at least one filter plate is detachably provided on first sliding plate;One side of sleeve is provided with lifting mechanism, and lifting mechanism is transmission connection with first sliding plate.

[0007] Further, in the utility model, one side of sleeve is provided with first equipment cavity, and lifting mechanism is arranged in first equipment cavity.

[0008] Further, in the utility model, the lifting mechanism includes the rotating shaft that is rotatably arranged in the first equipment cavity, the outer side wall of rotating shaft is provided with helical blade, the side wall in first equipment cavity is provided with vertical plate, two rollers are rotatably arranged on vertical plate, and two rollers are engaged with helical blade.

[0009] Further, in the utility model, the side of sleeve is further provided with second equipment cavity, the second equipment cavity is opposite to the first equipment cavity, the second equipment cavity is provided with synchronous mechanism, the synchronous mechanism is transmission connection with the filter plate.

[0010] Further, in the utility model, the side of sleeve is further provided with second equipment cavity, the second equipment cavity is opposite to the first equipment cavity, the second equipment cavity is provided with synchronous mechanism, the synchronous mechanism is transmission connection with the filter plate.

[0011] Further, in the utility model, the end of exhaust pipe outside the protective cover is provided with check valve.

[0012] The utility model discloses the beneficial effect is:

[0013] The utility model provides a dust cover that can be used on inductance coupling plasma mass spectrometer, installs filter plate in protective cover, and it can filter the gas that is discharged through exhaust pipe, installs lifting mechanism on sleeve, when needing to clean or replace filter plate, this lifting mechanism can make filter plate expose outside the bottom end of sleeve, so that clean or replace filter plate. ACCURACY OF DRAWINGS

[0014] Figure 1 It is structure schematic drawing of the utility model embodiment;

[0015] Figure 2 It is structure schematic drawing of the utility model embodiment;

[0016] Figure 3 It is structure schematic drawing of the lifting mechanism of the utility model embodiment;

[0017] Figure 4 It is structure schematic drawing of the synchronous mechanism of the utility model embodiment.

[0018] In the drawing: 101-sleeve;201-protective cover;301-exhaust pipe;401-first sliding plate;501-filter plate;601-first equipment cavity;701-rotating shaft;702-spiral blade;703-vertical board;704-roller;801-second equipment cavity;901-second sliding plate;1001-limiting shaft;1002-spring;1003-limiting plate;1101-check valve. DETAILED DESCRIPTION

[0019] The technical solutions of the present application will be described clearly and completely in combination with the embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the present application.

[0020] Please refer to Figures 1-4 The present application provides a technical solution:

[0021] A dust cover that can be used on an inductively coupled plasma mass spectrometer, comprising a sleeve 101 at the bottom and a protective cover 201 that can be detachably arranged at the top end of the sleeve 101, and the protective cover 201 is provided with two exhaust pipes 301. In order to facilitate the installation of the filter plate 501 in the sleeve 101, the inner side wall of the sleeve 101 is slidably provided with a first sliding plate 401, and the sliding direction of the first sliding plate 401 is parallel to the central axis of the sleeve 101, and three filter plates 501 are connected to the first sliding plate 401 by screws, and the three filter plates 501 are installed at intervals.

[0022] When the filter plate 501 needs to be cleaned or replaced, in order to facilitate cleaning or replacement, a lifting mechanism is installed on one side of the sleeve 101, and the lifting mechanism is in transmission connection with the first sliding plate 401. From Figure 1 the perspective, the lifting mechanism can move the filter plate 501 downward to the outside of the bottom end of the sleeve 101, thereby facilitating cleaning or replacement.

[0023] Referring to Figure 2 or Figure 3 In order to facilitate the installation of the lifting mechanism, a first equipment cavity 601 is arranged on one side of the sleeve 101 in the embodiment, and the lifting mechanism is installed in the first equipment cavity 601. Specifically, the lifting mechanism comprises a rotating shaft 701 rotatably arranged in the first equipment cavity 601, a helical blade 702 is installed on the outer side wall of the rotating shaft 701, a vertical plate 703 is installed on the side wall in the first equipment cavity 601, two rollers 704 are rotatably installed on the vertical plate 703 at intervals, and the two rollers 704 are in engagement with the helical blade 702. In this way, Figure 3 from the perspective, when the filter plate 501 in the sleeve 101 needs to be exposed outside the sleeve 101, rotating the rotating shaft 701 makes the two rollers 704 move downward under the action of the helical blade 702, the vertical plate 703 and the first sliding plate 401 move downward synchronously, thereby driving the filter plate 501 to move downward until the filter plate 501 is exposed outside the bottom end of the sleeve 101. In other embodiments of the present application, the lifting mechanism can also be replaced by a screw nut mechanism or a hydraulic rod mechanism.

[0024] Since the side of the filter plate 501 away from the lifting mechanism is not supported, the first sliding plate 401 will bear the bending moment from the filter plate 501 under the action of gravity, which may affect the smooth movement of the first sliding plate 401 during the lifting mechanism controls the filter plate 501 to move up and down in the sleeve 101. Therefore, in order to improve the smoothness of the filter plate 501 moving up and down, a synchronization mechanism is specially installed on one side of the sleeve 101, which can support the end of the filter plate 501 away from the first sliding plate 401. Referring to Figure 2 or Figure 4 In order to install the synchronization mechanism, a second equipment cavity 801 is specially provided on one side of the sleeve 101 in this embodiment, the second equipment cavity 801 is oppositely arranged with the first equipment cavity 601, and the synchronization mechanism is arranged in the second equipment cavity 801.

[0025] Specifically, referring to Figure 2 or Figure 4 In this embodiment, a second sliding plate 901 is slidingly arranged on one side of the sleeve 101, the sliding direction of the second sliding plate 901 is parallel to the central axis of the sleeve 101, and the side of the filter plate 501 away from the first sliding plate 401 is detachably connected with the second sliding plate 901. The synchronization mechanism includes a limiting shaft 1001 installed in the second equipment cavity 801 and a spring 1002 sleeved on the limiting shaft 1001, a limiting plate 1003 is installed on the side wall of the second equipment cavity 801, and the limiting plate 1003 is slidingly connected with the limiting shaft 1001; the central axis of the limiting shaft 1001 is parallel to the central axis of the sleeve 101; the bottom end of the spring 1002 is connected with the bottom wall of the second equipment cavity 801, and the top end thereof is connected with the limiting plate 1003. In this way, under the elastic force of the spring 1002, during the movement of the filter plate 501 up and down, the spring 1002 can support on one hand; from Figure 4 the perspective, on the other hand, when all the filter plates 501 are located in the sleeve 101, the elastic force of the spring 1002 makes the upper surface of the limiting plate 1003 always abut against the corresponding top wall located above, preventing the three filter plates 501 from making the rotating shaft 701 rotate under the action of gravity, so as to be exposed outside the bottom end of the sleeve 101.

[0026] When the dust cover is not working, in order to avoid the dust from the outside entering the protective cover 201 through the exhaust pipe 301, a check valve 1101 is installed on the end of each exhaust pipe 301 located outside the protective cover 201.

[0027] The above merely describes preferred embodiments of the present application, and it should be understood that the present application is not limited to the forms disclosed herein, and should not be considered as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concepts described herein, by the above teachings or related art or knowledge. Any modification and change made by those skilled in the art without departing from the spirit and scope of the present application shall be within the protection scope of the claims of the present application.

Claims

1. A dust shield for use on an inductively coupled plasma mass spectrometer, characterized by: The application relates to a filter device, which comprises a sleeve (101) and a protective cover (201) detachably arranged at the top end of the sleeve (101), at least one exhaust pipe (301) is arranged in the protective cover (201); a first sliding plate (401) is slidably arranged on the inner side wall of the sleeve (101), the sliding direction of the first sliding plate (401) is parallel to the central axis of the sleeve (101), at least one filter plate (501) is detachably arranged on the first sliding plate (401); a lifting mechanism is arranged on one side of the sleeve (101) and is in transmission connection with the first sliding plate (401).

2. A dust shield for use on an inductively coupled plasma mass spectrometer as defined in claim 1, wherein: A first equipment cavity (601) is arranged on one side of the sleeve (101), and the lifting mechanism is arranged in the first equipment cavity (601).

3. A dust shield for use on an inductively coupled plasma mass spectrometer as defined in claim 2, wherein: The lifting mechanism comprises a rotating shaft (701) rotatably arranged in the first equipment cavity (601), a spiral blade (702) is arranged on the outer side wall of the rotating shaft (701), a vertical plate (703) is arranged on the side wall of the first equipment cavity (601) where the first sliding plate (401) is located, two rollers (704) are rotatably arranged on the vertical plate (703) at intervals, and the two rollers (704) are in meshing connection with the spiral blade (702).

4. The dust shield for use in an inductively coupled plasma mass spectrometer according to claim 2, wherein: A second equipment cavity (801) is further arranged on one side of the sleeve (101), the second equipment cavity (801) is oppositely arranged with the first equipment cavity (601), a synchronous mechanism is arranged in the second equipment cavity (801), and the synchronous mechanism is in transmission connection with the filter plate (501).

5. A dust shield for use on an inductively coupled plasma mass spectrometer as defined in claim 4, wherein: A second sliding plate (901) is slidably arranged on one side of the sleeve (101), the sliding direction of the second sliding plate (901) is parallel to the central axis of the sleeve (101), and the side, away from the first sliding plate (401), of the filter plate (501) is detachably connected with the second sliding plate (901); the synchronous mechanism comprises a limiting shaft (1001) arranged in the second equipment cavity (801) and a spring (1002) sleeved on the limiting shaft (1001), a limiting plate (1003) is arranged on the side wall of the second equipment cavity (801) where the second sliding plate (901) is located, and the limiting plate (1003) is in sliding connection with the limiting shaft (1001); the central axis of the limiting shaft (1001) is parallel to the central axis of the sleeve (101); the bottom end of the spring (1002) is connected with the bottom wall of the second equipment cavity (801), and the top end of the spring (1002) is connected with the limiting plate (1003).

6. The dust shield for use in an inductively coupled plasma mass spectrometer according to claim 1, wherein: The end, outside the protective cover (201), of the exhaust pipe (301) is provided with a check valve (1101).

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