Throwing type filter membrane box for fixing sampling clamp

Abstract

The utility model discloses a throwing type filter membrane box for fixing a sampling clamp, and relates to the technical field of occupational health detection, the throwing type filter membrane box comprises a filter membrane box, the top of the filter membrane box is hinged with a box cover, a fixed frame is connected in the filter membrane box through a lifting mechanism, and a plurality of placing components which are distributed at equal intervals are arranged in the fixed frame. The filter membrane box is internally provided with a plurality of placing assemblies which are distributed at equal intervals, so that a plurality of sampling clamps can be conveniently and orderly placed layer by layer, and the storage effect of the filter membrane box is improved; the two-way screw rod is controlled to rotate through the hand rotating block, then under the limiting of the sliding groove, the two centering rods can drive the two arc-shaped positioning clamping plates to be centered and drawn close, then the sampling clamp placed on the placing disc can be quickly and effectively centered and fixed, the situation that the sampling clamp inclines due to accidental collision in the storage process is avoided, and the sampling clamp storage efficiency is improved. Therefore, the situation that the air sample collected on the filter paper spills out is avoided, and the subsequent detection work is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of occupational health detection, in particular to a disposable filter membrane box with a fixed sampling clip. Background Art

[0002] In the field of occupational health testing, sample collectors with dust-detecting filters, microporous filters, and glass fiber filter paper as sampling media are often used to collect air samples at a certain flow rate and time. The structure of this sample collector includes a sampling clamp, a filter membrane / filter paper mounted on the sampling clamp, and a filter membrane box for storing the sampling clamp.

[0003] However, the existing filter membrane box for storing sampling clips is not convenient for effectively fixing the sampling clips placed inside during use, resulting in the sampling clips in the filter membrane box tilting due to accidental collisions, which can easily spill the air samples collected on the filter paper and affect subsequent detection work. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a disposable filter membrane box with a fixed sampling clip, which effectively solves the problem that the existing filter membrane box for storing the sampling clip is not convenient for effectively fixing the sampling clip placed inside during use, causing the sampling clip in the filter membrane box to tilt due to accidental collision, which easily causes the air sample collected on the filter paper to spill and affect subsequent detection work.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A disposable filter membrane box with a fixed sampling clip, comprising a filter membrane box with a box cover hinged on the top;

[0007] The filter membrane box is connected to a fixed frame via a lifting mechanism, and a plurality of placement components distributed at equal distances are arranged in the fixed frame;

[0008] The placement assembly includes a placement plate welded in a fixed frame, a sampling clamp placed on the top of the placement plate, a slide groove opened on the top of the placement plate, a bidirectional screw rotatably installed in the slide groove, two centering rods symmetrically screwed on two opposite threaded ends of the bidirectional screw, and two arc-shaped positioning clamps symmetrically welded to the outer walls of adjacent sides of the two centering rods.

[0009] Preferably, a hand-rotating block is fixedly connected to the front end outer wall of the bidirectional screw, and the outer walls of the two centering rods are slidably connected to the inner wall of the slide groove.

[0010] Preferably, the lifting mechanism includes a mounting groove opened on one side of the filter membrane box, a threaded rotating rod rotatably installed in the mounting groove, a threaded block screwed on the threaded rotating rod, a control component and a positioning component.

[0011] Preferably, the control assembly includes a control shaft connected to the lower inner wall of one side of the filter membrane box through a bearing, a worm fixedly mounted on the control shaft, and a worm wheel fixedly mounted on the lower part of the threaded rotating rod and meshing with the worm.

[0012] Preferably, the positioning assembly includes a positioning groove formed on the inner wall of the other side of the membrane box and a positioning block slidably connected to the positioning groove.

[0013] Preferably, the fixing frame is welded between the threaded block and the positioning block, and a turning handle is welded to the outer wall of one end of the control shaft.

[0014] The beneficial effects of the utility model are:

[0015] 1. The filter box is provided with a number of equally spaced placement components, so that multiple sampling clips can be placed in layers in an orderly manner, thereby improving the preservation effect of the filter box;

[0016] 2. The placement component in the filter box controls the rotation of the bidirectional screw by the hand-rotating block, and then under the limit of the slide slot, the two centering rods can drive the two arc-shaped positioning clamps to center and move closer, so that the sampling clip placed on the placement plate can be quickly and effectively fixed in the center, avoiding the side tilt of the sampling clip due to accidental collision during the storage process, thereby avoiding the spillage of the air sample collected on the filter paper, ensuring the subsequent detection work;

[0017] 3. The lifting mechanism in the filter membrane box can control the lifting of the fixed frame, so the fixed frame can be thrown out of the filter membrane box to facilitate the detection personnel to take and place each sampling clip. After each sampling clip is placed, the fixed frame can be lowered back into the filter membrane box for continued storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the vertical cross-section structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure inside the filter membrane box of the utility model;

[0020] Figure 3 It is a three-dimensional enlarged structural schematic diagram of the components placed in the utility model;

[0021] Figure 4 It is a three-dimensional enlarged structural schematic diagram of the control component in the utility model;

[0022] Figure 5 It is a schematic diagram of the external three-dimensional structure of the utility model.

[0023] In the figure: 1. filter membrane box; 2. fixed frame; 3. placement plate; 4. sampling clamp; 5. slide groove; 6. bidirectional screw; 7. centering rod; 8. arc-shaped positioning clamp; 9. hand-screw block; 10. mounting groove; 11. threaded rotating rod; 12. threaded block; 13. control shaft; 14. worm; 15. worm wheel; 16. rotating handle; 17. positioning groove; 18. positioning block; 19. box cover. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Example 1, reference Figure 1-3 , a disposable filter membrane box with a fixed sampling clip, comprising a filter membrane box 1 with a box cover 19 hinged on the top;

[0026] The filter membrane box 1 is connected to a fixed frame 2 via a lifting mechanism, and a plurality of placement components are arranged in the fixed frame 2 at equal distances;

[0027] The placement assembly includes a placement plate 3 welded in a fixed frame 2, a sampling clamp 4 placed on the top of the placement plate 3, a slide groove 5 opened on the top of the placement plate 3, a bidirectional screw 6 rotatably installed in the slide groove 5, two centering rods 7 symmetrically screwed on two opposite threaded ends of the bidirectional screw 6, and two arc-shaped positioning clamps 8 symmetrically welded to the outer wall of the adjacent side of the two centering rods 7;

[0028] The front end outer wall of the bidirectional screw 6 is fixedly connected with a hand-screw block 9, and the outer walls of the two centering rods 7 are slidably connected with the inner wall of the slide groove 5;

[0029] In this embodiment, a plurality of equally spaced placement components are provided in the filter membrane box 1, so as to facilitate orderly placement of multiple sampling clips 4 in layers, thereby improving the preservation effect of the filter membrane box 1;

[0030] The placement component in the filter membrane box 1 controls the rotation of the bidirectional screw 6 through the hand-rotating block 9, and then under the limit of the slide groove 5, the two centering rods 7 can drive the two arc-shaped positioning clamps 8 to center and move closer, so that the sampling clamp 4 placed on the placement plate 3 can be quickly and effectively centered and fixed, avoiding the sampling clamp 4 from tilting due to accidental collision during the storage process, thereby avoiding the air sample collected on the filter paper from spilling, and ensuring subsequent detection work.

[0031] Example 2, reference Figure 1-2 and Figure 4-5 This embodiment is optimized on the basis of embodiment 1, specifically:

[0032] The lifting mechanism includes a mounting groove 10 provided on one side of the filter membrane box 1, a threaded rotating rod 11 rotatably mounted in the mounting groove 10, a threaded block 12 screwed on the threaded rotating rod 11, a control component and a positioning component;

[0033] The control assembly includes a control shaft 13 connected to the inner wall of the lower part of one side of the filter membrane box 1 through a bearing, a worm 14 fixedly sleeved on the control shaft 13, and a worm wheel 15 fixedly sleeved on the lower part of the threaded rotating rod 11 and meshing with the worm 14;

[0034] The positioning assembly includes a positioning groove 17 formed on the inner wall of the other side of the filter membrane box 1 and a positioning block 18 slidably connected to the positioning groove 17;

[0035] The fixed frame 2 is welded between the thread block 12 and the positioning block 18, and a turning handle 16 is welded to the outer wall of one end of the control shaft 13;

[0036] In this embodiment, the lifting and lowering of the fixed frame 2 can be controlled by the lifting mechanism, so the fixed frame 2 can be thrown out of the filter membrane box 1 to facilitate the detection personnel to take and place each sampling clip 4. After each sampling clip 4 is placed, the fixed frame 2 can be lowered back into the filter membrane box 1 for continued storage.

[0037] The working principle of this utility model:

[0038] First, open the box cover 19 and control the worm 14 to rotate forward through the handle 16, then the worm wheel 15 meshing with the worm 14 will control the threaded rotating rod 11 to rotate forward, and then under the positioning of the positioning assembly, the threaded block 12 and the positioning block 18 will control the fixed frame 2 to gradually rise and be thrown out of the filter membrane box 1;

[0039] Secondly, multiple sampling clips 4 that need to be stored are placed on each placement plate 3 in turn, and the two-way screw 6 is controlled to rotate by the hand-rotating block 9. Under the limit of the slide groove 5, the two centering rods 7 can drive the two arc-shaped positioning clamps 8 to center and move closer to effectively center and fix the sampling clips 4. According to the above operation method, the sampling clips 4 on all the placement plates 3 can be effectively fixed;

[0040] Finally, the worm 14 is controlled to rotate in the opposite direction by the turning handle 16, and then the worm wheel 15 meshing with the worm 14 will control the threaded rotating rod 11 to rotate in the opposite direction. Then, under the positioning of the positioning assembly, the threaded block 12 and the positioning block 18 will control the fixed frame 2 to gradually descend back into the filter membrane box 1 and close the box cover 19.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A disposable filter membrane box with a fixed sampling clip, comprising a filter membrane box (1) with a box cover (19) hinged on the top; It is characterized in that The filter membrane box (1) is connected to a fixed frame (2) via a lifting mechanism, and a plurality of placement components distributed at equal distances are arranged in the fixed frame (2); The placement assembly comprises a placement plate (3) welded inside a fixed frame (2), a sampling clamp (4) placed on the top of the placement plate (3), a slide groove (5) opened on the top of the placement plate (3), a bidirectional screw (6) rotatably installed in the slide groove (5), two centering rods (7) symmetrically screwed on two opposite threaded ends of the bidirectional screw (6), and two arc-shaped positioning clamps (8) symmetrically welded to the outer walls of adjacent sides of the two centering rods (7).

2. A disposable filter membrane cartridge with a fixed sampling clip according to claim 1, characterized in that: The front end outer wall of the bidirectional screw (6) is fixedly connected with a hand-rotating block (9), and the outer walls of the two centering rods (7) are both slidably connected with the inner wall of the slide groove (5).

3. A disposable filter membrane cartridge with a fixed sampling clip according to claim 1, characterized in that: The lifting mechanism comprises a mounting groove (10) provided on one side of the filter membrane box (1), a threaded rotating rod (11) rotatably mounted in the mounting groove (10), a threaded block (12) screwed onto the threaded rotating rod (11), a control component and a positioning component.

4. A disposable filter membrane cartridge with a fixed sampling clip according to claim 3, characterized in that: The control assembly comprises a control shaft (13) connected to the lower inner wall of one side of the filter membrane box (1) through a bearing, a worm (14) fixedly mounted on the control shaft (13), and a worm wheel (15) fixedly mounted on the lower part of the threaded rotating rod (11) and meshing with the worm (14).

5. The disposable filter membrane box with a fixed sampling clip according to claim 3, characterized in that: The positioning assembly comprises a positioning groove (17) formed on the inner wall of the other side of the filter membrane box (1) and a positioning block (18) slidably connected to the positioning groove (17).

6. A disposable filter membrane cartridge with a fixed sampling clip according to claim 1, characterized in that: The fixed frame (2) is welded between the threaded block (12) and the positioning block (18), and a rotating handle (16) is welded to the outer wall of one end of the control shaft (13).

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