Low-voltage testing device

Abstract

The utility model relates to the technical field of low-voltage testing, in particular to a low-voltage testing device, which comprises a detection box, a first driving mechanism and a sample table, a sealing cover is detachably mounted at the top end of the detection box; connecting valves are arranged on the side wall and the bottom end of the detection box; the first driving mechanism is provided with a rotating seat, and the rotating seat can be driven by the first driving mechanism to perform displacement adjustment along the height direction of the detection box and rotate along the axis of the rotating seat; the sample table is rotationally connected with the top end of the rotating seat and is driven to rotate by a second driving mechanism, and a sample is detachably mounted on the sample table. According to the utility model, through the clamping mechanism, the sample to be detected and the sample table can be quickly assembled and disassembled; through the arrangement of the first driving mechanism and the second driving mechanism, material taking is more convenient and faster, a to-be-detected sample on the sample table is conveniently driven to be adjusted at multiple angles to be in uniform contact with detection gas in the detection box, the detection time is shortened, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of low - voltage testing, in particular to a low - voltage testing device. Background Technique

[0002] Generally, the analysis of materials requires excluding the interference of other external substances. Since the material is exposed to the atmosphere, the material itself will release and absorb gas to the outside. Therefore, such experiments require an extremely low - pressure testing environment. At the same time, different gases need to be purged on the material surface so that it can fully absorb gas and then the material is evacuated. The existing devices for low - pressure testing of materials usually include a sample chamber for accommodating samples. The sample collection is connected to external equipment through a connection channel, so that test gases can be transported to the sample chamber and vacuum can be pumped through the connection channel, thereby facilitating the analysis of the medium in the environment and more accurately analyzing the essential properties of the material.

[0003] However, when the existing low - voltage testing device is in use, the material sample is usually relatively fixedly placed in the sample chamber, unable to quickly and evenly contact the test gas, prolonging the test time, reducing the test efficiency, and the material taking is not convenient and fast enough, bringing inconvenience to the use. Summary of the Utility Model

[0004] The purpose of the utility model is to propose a low - voltage testing device aiming at the problems existing in the background technique.

[0005] The technical solution of the utility model: A low - voltage testing device includes a detection box, the top of which is detachably installed with a sealing cover. Connection valves are arranged on the side wall and the bottom end of the detection box, and gas flow sensors are arranged on the connection valves; a first driving mechanism, which is arranged inside the detection box. A rotating seat is arranged on the first driving mechanism, and the rotating seat can be displaced and adjusted along the height direction of the detection box and rotated along the axis of the rotating seat through the drive of the first driving mechanism; and a sample stage, which is rotatably connected to the top end of the rotating seat. A second driving mechanism is arranged on the rotating seat, and the sample stage is driven to rotate by the second driving mechanism. A sample is detachably installed on the sample stage.

[0006] Preferably, the first driving mechanism includes a screw rod, which is rotatably installed inside the detection box and driven to rotate by a first motor installed at the top end of the detection box; and a guide rod, which is installed inside the detection box. Moving seats are sleeved outside both the screw rod and the guide rod; the rotating seat is rotatably connected between the two moving seats, and two connecting frames are symmetrically arranged between the two moving seats.

[0007] Preferably, two rotating rods are symmetrically arranged on the rotating seat, the other ends of the rotating rods are rotatably connected to the corresponding moving seats. A transmission component is arranged in the inner cavity of one of the moving seats, and the transmission component is driven to rotate by a second motor installed on the moving seat, and the other end of the transmission component is connected to the corresponding rotating rod.

[0008] Preferably, the diameter of the sample stage is smaller than the diameter of the feeding port at the top end of the detection box; the connecting frame corresponds to the sample stage.

[0009] Preferably, the second driving mechanism includes a rotating shaft, which is rotatably connected to the rotating seat and is driven to rotate by a third motor installed on the rotating seat, and the sample stage is installed at the top end of the rotating shaft.

[0010] Preferably, a clamping mechanism is provided at the top end of the sample stage. The clamping mechanism includes four groups of chutes, which are evenly distributed at the top end of the sample stage; a cross bar, which is installed inside the chutes, and an elastic member is sleeved outside the cross bar; and a clamping seat, the bottom end of which is slidably connected to the chutes and the clamping seat is slidably sleeved outside the cross bar. One end of the elastic member is connected to the chutes and the other end is connected to the clamping seat.

[0011] Compared with the prior art, the above technical solution of the present utility model has the following beneficial technical effects: the present utility model facilitates the quick disassembly and assembly of the sample to be detected and the sample stage through the clamping mechanism; the first driving mechanism facilitates driving the rotating seat to displace and adjust along the height direction of the detection box and rotate along the axis of the rotating seat, making the material taking more convenient and fast; the second driving mechanism facilitates driving the sample stage to rotate along the rotating seat, so that the sample to be detected on the sample stage can be adjusted at multiple angles to uniformly contact the detection gas inside the detection box, shortening the detection time and improving the detection efficiency. Description of the Drawings

[0012] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0013] Figure 2 It is a schematic diagram of the connection mode between the rotating seat and the first driving mechanism of the present utility model;

[0014] Figure 3 It is a schematic diagram of the connection mode between the sample stage and the rotating seat of the present utility model.

[0015] Reference numerals: 1, detection box; 101, sealing cover; 102, connection valve; 2, screw; 201, guide rod; 202, moving seat; 203, connecting frame; 204, rotating seat; 205, rotating rod; 206, transmission component; 207, annular groove; 3, sample stage; 301, rotating shaft; 302, chute; 303, cross bar; 304, elastic member; 305, clamping seat; 4, air vent. Detailed Embodiments

[0016] Embodiment 1

[0017] As Figures 1 to 3As shown in the figure, a low-voltage test device proposed by the utility model includes a detection box 1, a first driving mechanism, and a sample stage 3. A sealing cover 101 is detachably installed at the top of the detection box 1. Connecting valves 102 are provided on the side wall and bottom end of the detection box 1, and gas flow sensors are provided on the connecting valves 102 to facilitate real-time monitoring of the gas flow passing through. The first driving mechanism is arranged inside the detection box 1. A rotating seat 204 is arranged on the first driving mechanism. The rotating seat 204 can be displaced and adjusted along the height direction of the detection box 1 and rotated along the axis of the rotating seat 204 by driving of the first driving mechanism. The sample stage 3 is rotatably connected to the top end of the rotating seat 204. A second driving mechanism is arranged on the rotating seat 204. The sample stage 3 is driven to rotate by the second driving mechanism. A sample is detachably installed on the sample stage 3. Multiple groups of air holes 4 are provided on both the sample stage 3 and the rotating seat 204 to facilitate the contact between the gas and the sample.

[0018] Further, the first driving mechanism includes a screw rod 2 and a guide rod 201. The screw rod 2 is rotatably installed inside the detection box 1 and is driven to rotate by a first motor installed at the top end of the detection box 1. The guide rod 201 is installed inside the detection box 1. Moving seats 202 are sleeved outside both the screw rod 2 and the guide rod 201. The screw rod 2 is threadedly connected to the corresponding moving seat 202, and the guide rod 201 is slidably connected to the corresponding moving seat 202. The rotating seat 204 is rotatably connected between the two moving seats 202. Two connecting frames 203 are symmetrically arranged between the two moving seats 202. Two rotating rods 205 are symmetrically arranged on the rotating seat 204. The other end of the rotating rod 205 is rotatably connected to the corresponding moving seat 202. A transmission component 206 is arranged in the inner cavity of one of the moving seats 202, and the transmission component 206 is driven to rotate by a second motor installed on the moving seat 202. The other end of the transmission component 206 is connected to the corresponding rotating rod 205. The transmission component 206 is composed of two bevel gears meshed with each other.

[0019] Further, the diameter of the sample stage 3 is smaller than the diameter of the feeding port at the top end of the detection box 1, which is convenient for the sample stage 3 to drive the sample to move outside the top end of the detection box 1, facilitating loading and unloading. The connecting frame 203 corresponds to the sample stage 3. When the sample stage 3 rotates driven by the first driving mechanism, the connecting frame 203 will not interfere with the rotation of the sample stage 3 and the sample on the sample stage 3.

[0020] Further, the second driving mechanism includes a rotating shaft 301. The rotating shaft 301 is rotatably connected to the rotating seat 204 and is driven to rotate by a third motor installed on the rotating seat 204. The sample stage 3 is installed at the top end of the rotating shaft 301. An annular groove 207 is provided at the edge of the top end of the rotating seat 204. Sliders are symmetrically arranged at the bottom end of the sample stage 3. The sliders are slidably connected to the annular groove 207, which is convenient for supporting the sample stage 3 and improving the installation stability between the sample stage 3 and the rotating seat 204.

[0021] In this embodiment, the sealing cover 101 is opened, and the screw rod 2 is driven to rotate by the first motor. Under the connection action of the connecting frame 203, the two sets of moving seats 202 move upward along the screw rod 2 and the guide rod 201 until the sample stage 3 moves to the outside of the feeding port at the top of the detection box 1. The sample material to be detected is installed on the top of the sample stage 3, and then the sample stage 3 is driven by the first driving mechanism to move into the detection box 1 to an appropriate height. The sealing cover 101 is closed, and an external device is connected to the connection valve 102 to convey an appropriate test gas into the detection box 1 or the detection box 1 is evacuated through the connection valve 102; when an appropriate detection gas is conveyed into the detection box 1, the transmission assembly 206 is driven by the second motor to drive the rotating rod 205 to rotate, and then drive the rotating seat 204 to rotate along its own axis, so that the sample stage 3 drives the sample to rotate and uniformly contact the gas conveyed by the connection valve 102 at the bottom; the rotating shaft 301 is driven to rotate by the third motor to drive the sample stage 3 to rotate along the rotating seat 204, and then drive the sample to be detected on the sample stage 3 to uniformly contact the gas conveyed by the connection valve 102 on the side wall of the detection box 1, shortening the detection time and improving the detection efficiency; after the detection is completed, the sealing cover 101 is separated from the detection box 1, and the first driving mechanism is used to drive the sample stage 3 to move to the outside of the feeding port of the detection box 1, and then the sample on the sample stage 3 can be taken off.

[0022] Embodiment 2

[0023] As Figure 1 and Figure 3 shown, a low-pressure testing device proposed by the present utility model, compared with Embodiment 1, a clamping mechanism is provided at the top of the sample stage 3. The clamping mechanism includes a sliding groove 302, a cross bar 303 and a clamping seat 305. There are four groups of sliding grooves 302, and the four groups of sliding grooves 302 are evenly distributed on the top of the sample stage 3; the cross bar 303 is installed inside the sliding groove 302, and an elastic member 304 is sleeved outside the cross bar 303, and the elastic member 304 is a spring; the bottom end of the clamping seat 305 is slidably connected to the sliding groove 302, and the clamping seat 305 is slidably sleeved outside the cross bar 303. One end of the elastic member 304 is connected to the sliding groove 302, and the other end is connected to the clamping seat 305.

[0024] In this embodiment, when the first driving mechanism drives the sample stage 3 to move to the outside of the top of the detection box 1, the clamping seat 305 is slid along the sliding groove 302 to compress the elastic member 304. The test sample is placed in the middle of the sample stage 3, and the clamping seat 305 is released. Under the elastic force of the elastic member 304, the clamping seat 305 is driven to abut against the sample, and then the sample is clamped on the sample stage 3 by the four groups of clamping seats 305 to complete the installation. When the first driving mechanism drives the sample to rotate at a constant speed, the installation stability of the sample and the sample stage 3 is improved.

[0025] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited thereto, and various changes can be made without departing from the gist of the present utility model within the scope of knowledge possessed by those skilled in the art to which it pertains.

Claims

1. A low voltage test device, characterized in that: include A detection box (1) having a sealing cover (101) detachably mounted on the top thereof, a connecting valve (102) disposed on the side wall and the bottom of the detection box (1), and a gas flow sensor disposed on the connecting valve (102); A first driving mechanism, which is arranged inside the detection box (1), and a rotating seat (204) is arranged on the first driving mechanism. The rotating seat (204) is driven by the first driving mechanism to be displaced and adjusted along the height direction of the detection box (1) and to rotate along the axis of the rotating seat (204); And a sample stage (3) is rotatably connected to the top of a rotating seat (204); a second driving mechanism is arranged on the rotating seat (204); the sample stage (3) is driven to rotate by the second driving mechanism; and a sample is detachably mounted on the sample stage (3).

2. A low voltage testing device according to claim 1, characterized in that: The first driving mechanism includes A screw (2) is rotatably mounted inside the detection box (1) and is driven to rotate by a first motor mounted on the top of the detection box (1); and a guide rod (201) which is installed inside the detection box (1); a movable seat (202) is sleeved on the outside of the screw rod (2) and the guide rod (201); a rotating seat (204) is rotatably connected between two groups of movable seats (202); and two groups of connecting frames (203) are symmetrically arranged between the two groups of movable seats (202).

3. A low voltage testing device according to claim 2, characterized in that: Two groups of rotating rods (205) are symmetrically arranged on the rotating seat (204), and the other ends of the rotating rods (205) are rotatably connected to the corresponding moving seats (202). A transmission assembly (206) is arranged in the inner cavity of one group of moving seats (202), and the transmission assembly (206) is driven to rotate by a second motor installed on the moving seat (202), and the other end of the transmission assembly (206) is connected to the corresponding rotating rod (205).

4. A low voltage testing device according to claim 2, characterized in that: The diameter of the sample platform (3) is smaller than the diameter of the material inlet at the top of the detection box (1); and the connecting frame (203) corresponds to the sample platform (3).

5. A low voltage testing device according to claim 1, characterized in that: The second driving mechanism includes The rotating shaft (301) is rotatably connected to the rotating seat (204) and driven to rotate by a third motor installed on the rotating seat (204). The sample stage (3) is installed on the top of the rotating shaft (301).

6. A low voltage testing device according to claim 1, characterized in that: A clamping mechanism is arranged on the top of the sample stage (3), and the clamping mechanism includes The slide grooves (302) are provided in four groups, and the four groups of slide grooves (302) are evenly distributed on the top of the sample platform (3); A cross bar (303) is installed inside the slide groove (302), and an elastic member (304) is sleeved outside the cross bar (303); And a clamping seat (305), the bottom end of which is slidably connected to the slide groove (302), and the clamping seat (305) is slidably sleeved on the outside of the cross bar (303), one end of the elastic member (304) is connected to the slide groove (302), and the other end is connected to the clamping seat (305).

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