Suspended particle charge-to-mass ratio measuring instrument

Abstract

The utility model provides a suspended particle charge-to-mass ratio measuring instrument, which belongs to the field of charge-to-mass ratio measurement, and comprises a box body, the measuring instrument is mounted in the box body, and an opening is formed in the top of the box body in a penetrating manner; the lifting assembly comprises two threaded rods, a motor and a lifting plate, the tops of the two threaded rods are rotationally arranged at the inner top of the box body, round rods are fixedly arranged at the bottoms of the two threaded rods, one round rod is rotationally arranged at the inner bottom of the box body, the motor is fixedly installed at the inner bottom of the box body, and the lifting plate is fixedly installed at the inner bottom of the box body. And the other round rod is fixedly arranged at the output end of the motor. According to the measuring instrument, the box body and the lifting assembly are arranged, the measuring instrument can be well protected, the situation that precision parts and electronic elements are damaged after the measuring instrument is collided and impacted is avoided, the maintenance cost is reduced, the measuring instrument can be rapidly and conveniently assembled and disassembled due to the fact that the clamping buckle assembly is further arranged, and the usability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of charge-to-mass ratio measurement, in particular to a suspended particle charge-to-mass ratio measuring instrument. Background Art

[0002] A suspended particle charge-to-mass ratio measuring instrument with application number CN201520762891.4, which includes a particle collecting box, wherein the particle collecting box is used to collect particles to be detected, an air intake pipe and an air exhaust pipe are provided on the side of the particle collecting box, the air intake pipe and the air exhaust pipe are connected, the air exhaust pipe is used to draw external air from the air intake pipe into the particle collecting box, and to extract the air in the particle collecting box, a plurality of measuring tubes are evenly arranged in the particle collecting box for connecting a dust meter to measure the dust mass concentration, a wire for connecting a charge meter is provided at the bottom of the particle collecting box, and the charge meter measures the charge of the particles in the particle collecting box, the suspended particle charge-to-mass ratio measuring instrument of the utility model, by sucking air with haze particles into the particle collecting box, and then extracting the air, measuring the mass and charge of the particles, and obtaining the charge-to-mass ratio, the instrument has simple operation, high precision and convenient use.

[0003] However, the above-mentioned prior art lacks a device for protecting the measuring instrument. Since a large number of precision parts and electronic components are arranged inside the measuring instrument, the instrument is easily damaged after being bumped or hit, thereby increasing maintenance costs. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a suspended particle charge-to-mass ratio measuring instrument.

[0005] The embodiment of the utility model provides a suspended particle charge-to-mass ratio measuring instrument, comprising:

[0006] A box body, wherein a measuring instrument is installed in the box body, and an opening is provided through the top of the box body;

[0007] A lifting assembly, the lifting assembly includes two threaded rods, a motor and a lifting plate, the tops of the two threaded rods are rotatably set on the inner top of the box, the bottoms of the two threaded rods are fixedly provided with round rods, one of the round rods is rotatably set on the inner bottom of the box, the motor is fixedly installed on the inner bottom of the box, and the other round rod is fixedly provided on the output end of the motor, the two round rods are transmitted through a transmission assembly, the two threaded rods respectively pass through the two ends of the lifting plate and are threadedly connected, four connecting rods are fixedly provided in parallel on the top of the lifting plate, the four connecting rods are movably provided through the opening, the tops of the four connecting rods are fixedly provided with a cover plate, the top of the box is provided with a slot, the slot is matched with the cover plate, two buckle assemblies are fixedly provided opposite to each other on the lifting plate, and the two buckle assemblies are respectively provided on both sides of the measuring instrument.

[0008] Furthermore, the buckle assembly includes a fixed block, a clamping column and a connecting column, the fixed block is fixedly set on the lifting plate, a sliding groove is set on the inner side of the fixed block, the clamping column is slidably set in the sliding groove, a spring is fixedly set at the bottom of the clamping column, the other end of the spring is fixedly set at the bottom of the sliding groove, a connecting column is fixedly set at the bottom of the clamping column, the connecting column is movably set through the spring, and the other end of the connecting column passes through the bottom of the sliding groove and extends to the outside of the fixed block.

[0009] Furthermore, the transmission assembly includes two pulleys and a belt. The two pulleys are respectively fixedly arranged on two round rods and installed in a matching manner. The two pulleys are driven by the belt.

[0010] Furthermore, a rectangular groove is provided on the top of the cover plate, a handle is rotatably provided in the rectangular groove, and an anti-slip rubber sleeve is provided on the handle.

[0011] Furthermore, the upper part of the clamping column is arranged in an inclined surface, and the clamping column is arranged in cooperation with the clamping hole.

[0012] Furthermore, a limiting plate is fixedly provided on the outer end of the connecting column, and a handle is fixedly provided on the other side of the limiting plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model is provided with a box body and a lifting assembly, which can well protect the measuring instrument, avoid damage to precision parts and electronic components of the measuring instrument after being bumped and hit, reduce maintenance costs, and also provide a snap-on assembly, so that the measuring instrument can be quickly and conveniently installed and disassembled, thereby improving usability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of a suspended particle charge-to-mass ratio measuring instrument described in an embodiment of the utility model.

[0016] Figure 2 It is a cross-sectional view of a buckle assembly in a suspended particle charge-to-mass ratio measuring instrument described in an embodiment of the utility model.

[0017] In the above drawings: 1 box, 2 threaded rod, 3 motor, 4 belt, 5 pulley, 6 lifting plate, 7 connecting rod, 8 cover plate, 9 slot, 10 handle, 11 fixed block, 12 slide, 13 clamping column, 14 spring, 15 connecting column, 16 limit plate, 17 clamping hole. DETAILED DESCRIPTION

[0018] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] like Figure 1-Figure 2 As shown, the embodiment of the utility model provides a suspended particle charge-to-mass ratio measuring instrument, comprising:

[0020] A box 1, in which a measuring instrument is installed, and an opening is provided through the top of the box 1;

[0021] A lifting assembly, the lifting assembly includes two threaded rods 2, a motor 3 and a lifting plate 6, the tops of the two threaded rods 2 are rotatably arranged on the inner top of the box body 1, the bottoms of the two threaded rods 2 are fixedly arranged with round rods, one of the round rods is rotatably arranged on the inner bottom of the box body 1, the motor 3 is fixedly installed on the inner bottom of the box body 1, and the other round rod is fixedly arranged on the output end of the motor 3;

[0022] The two round rods are driven by a transmission assembly, which includes two pulleys 5 and a belt 4. The two pulleys 5 are respectively fixed on the two round rods and matched with each other, and the two pulleys 5 are driven by the belt 4.

[0023] The motor 3 can drive the round rod and one of the threaded rods 2 to rotate, and through the transmission of the transmission assembly, drive the other threaded rod 2 to rotate at the same time. By controlling the forward and reverse rotation of the motor 3, the lifting plate 6 can drive the measuring instrument to move up and down;

[0024] Two threaded rods 2 respectively penetrate the two ends of the lifting plate 6 and are threadedly connected. Four connecting rods 7 are fixedly arranged in parallel on the top of the lifting plate 6. The four connecting rods 7 are movably arranged through the opening. A cover plate 8 is fixedly arranged on the top of the four connecting rods 7. A rectangular groove is arranged on the top of the cover plate 8. A handle 10 is rotatably arranged in the rectangular groove. A non-slip rubber sleeve is arranged on the handle 10. A card slot 9 is arranged through the opening on the top of the box body 1. The card slot 9 is arranged in cooperation with the cover plate 8.

[0025] When the lifting plate 6 moves up and down, the lifting plate 6 can drive the cover plate 8 to move up and down through the four connecting rods 7. When the cover plate 8 is closed, the staff can use the handle 10 to break out from the rectangular groove to facilitate the movement of the box body 1 and the measuring instrument. After the box body 1 is placed stably, the handle 10 can be turned into the rectangular groove to save space;

[0026] Two buckle assemblies are fixedly arranged opposite to each other on the lifting plate 6, and the two buckle assemblies are respectively arranged on both sides of the measuring instrument, so that the measuring instrument can be inserted between the two buckle assemblies;

[0027] The buckle assembly includes a fixed block 11, a clamping column 13 and a connecting column 15. The fixed block 11 is fixedly arranged on the lifting plate 6. A slide groove 12 is arranged on the inner side of the fixed block 11. The clamping column 13 is slidably arranged in the slide groove 12. The upper side of the clamping column 13 is arranged in an inclined surface. The clamping column 13 is arranged in cooperation with the clamping hole 17.

[0028] A spring 14 is fixedly arranged at the bottom of the clamping column 13, and the other end of the spring 14 is fixedly arranged at the bottom of the slide slot 12. A connecting column 15 is fixedly arranged at the bottom of the clamping column 13, and the connecting column 15 penetrates the spring 14 and is movably arranged. The other end of the connecting column 15 penetrates the bottom of the slide slot 12 and extends to the outside of the fixed block 11. A limiting plate 16 is fixedly arranged at the outer end of the connecting column 15, and a handle is fixedly arranged on the other side of the limiting plate 16;

[0029] The detailed working process of the utility model is as follows:

[0030] 1. When installing the measuring instrument, the staff needs to first lift the lifting plate 6 to the top, then align the clamping holes 17 on both sides of the measuring instrument with the corresponding clamping columns 13, and then press the measuring instrument downward into the buckle assembly. At this time, the clamping column 13 will be pushed into the slide groove 12 under the action of pressure. When the clamping hole 17 moves to the front of the clamping column 13, the clamping column 13 is reset under the action of the spring 14 and is clamped into the clamping hole 17 to fix the measuring instrument;

[0031] 2. When the measuring instrument needs to be used, the staff starts the motor 3. Under the cooperation of the motor 3 and the transmission assembly, the lifting plate 6 is lifted, and the lifting plate 6 drives the measuring instrument and the cover plate 8 to lift upward. When the lifting plate 6 is lifted to the end, the measuring instrument is also lifted out of the box 1. At this time, the measuring instrument can be used for measurement;

[0032] 3. When the measurement is finished, the lifting plate 6 is moved downward by controlling the motor 3 to reverse, and the measuring instrument is retracted into the box 1. The lifting plate 6 drives the cover plate 8 to move downward into the card slot 9 through the four connecting rods 7, and the measuring instrument can be protected at this time;

[0033] 4. When dismantling the measuring instrument, the staff pulls the two handles outward at the same time to separate the two clamping columns 13 from the corresponding clamping holes 17, and then the measuring instrument can be taken out.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A suspended particle charge-to-mass ratio measuring instrument, characterized in that: include: A box (1), wherein a measuring instrument is installed in the box (1), and an opening is provided through the top of the box (1); A lifting assembly, the lifting assembly comprising two threaded rods (2), a motor (3) and a lifting plate (6), the tops of the two threaded rods (2) are rotatably mounted on the inner top of a box body (1), the bottoms of the two threaded rods (2) are fixedly mounted with round rods, one of the round rods is rotatably mounted on the inner bottom of the box body (1), the motor (3) is fixedly mounted on the inner bottom of the box body (1), the other round rod is fixedly mounted on the output end of the motor (3), the two round rods are transmitted through a transmission assembly, the two threaded rods are The rod (2) passes through the two ends of the lifting plate (6) respectively and is threadedly connected. Four connecting rods (7) are fixedly arranged in parallel on the top of the lifting plate (6). The four connecting rods (7) are movably arranged through the opening. A cover plate (8) is fixedly arranged on the top of the four connecting rods (7). A card slot (9) is arranged through the opening at the top of the box body (1). The card slot (9) is arranged in coordination with the cover plate (8). Two buckle assemblies are fixedly arranged opposite to each other on the lifting plate (6). The two buckle assemblies are respectively arranged on both sides of the measuring instrument.

2. The suspended particle charge-to-mass ratio measuring instrument according to claim 1, characterized in that: in: The buckle assembly comprises a fixed block (11), a clamping column (13) and a connecting column (15); the fixed block (11) is fixedly arranged on the lifting plate (6); a sliding groove (12) is arranged on the inner side of the fixed block (11); the clamping column (13) is slidably arranged in the sliding groove (12); a spring (14) is fixedly arranged at the bottom of the clamping column (13); the other end of the spring (14) is fixedly arranged at the bottom of the sliding groove (12); a connecting column (15) is fixedly arranged at the bottom of the clamping column (13); the connecting column (15) penetrates the spring (14) and is movably arranged; the other end of the connecting column (15) penetrates the bottom of the sliding groove (12) and extends to the outside of the fixed block (11).

3. The suspended particle charge-to-mass ratio measuring instrument according to claim 1, characterized in that: in: The transmission assembly comprises two pulleys (5) and a belt (4); the two pulleys (5) are respectively fixedly arranged on two round rods and are installed in a matching manner; the two pulleys (5) are driven by the belt (4).

4. The suspended particle charge-to-mass ratio measuring instrument according to claim 1, characterized in that: in: A rectangular groove is arranged on the top of the cover plate (8), a handle (10) is rotatably arranged in the rectangular groove, and an anti-slip rubber sleeve is arranged on the handle (10).

5. The suspended particle charge-to-mass ratio measuring instrument according to claim 2, characterized in that: in: The upper portion of the clamping column (13) is arranged in an inclined surface, and the clamping column (13) is arranged in cooperation with the clamping hole (17).

6. The suspended particle charge-to-mass ratio measuring instrument according to claim 2, characterized in that: in: A limiting plate (16) is fixedly provided on the outer end of the connecting column (15), and a handle is fixedly provided on the other side of the limiting plate (16).

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