Membrane seat of particulate matter sampler

Abstract

The utility model relates to the technical field of membrane seats, in particular to a membrane seat of a particulate matter sampler, and provides the membrane seat of the particulate matter sampler, which is convenient for taking out a filter membrane body and reduces the trouble degree of taking out the filter membrane body by a worker. Comprising a filter membrane body and further comprises a mounting frame, a metering pump, a mounting pipe, a mounting seat, a first sleeve, a second sleeve and a mounting assembly, the metering pump is mounted in the mounting frame, the bottom end of the mounting pipe is connected with the metering pump, the mounting pipe is mounted on the mounting frame, the mounting seat is communicated with the top end of the mounting pipe, a first groove is formed in the mounting seat, and the filter membrane body is placed in the first groove; the first sleeve is slidably sleeved with the first groove, the bottom end of the first sleeve is tightly attached to the filter membrane body, the first sleeve is connected with the second sleeve, the first sleeve is connected with the second sleeve through multiple sets of mounting assemblies; the ejection assembly is used for ejecting out the filter membrane body.

Description

Technical Field

[0001] The utility model relates to the technical field of membrane seats, in particular to a membrane seat for a particulate sampler. Background Art

[0002] To monitor the concentration of particulate matter in ambient air, the most accurate method recognized worldwide is to sample the atmosphere with a particulate sampler, collect an atmospheric sample at a constant flow rate, and after the sampled gas passes through a filter membrane, the particulate matter is collected on the filter membrane. The concentration of particulate matter can be obtained by dividing the weight gain of the filter membrane before and after collection by the volume of the collected gas.

[0003] However, a circular filter membrane must have a membrane seat, and it is inconvenient to take out the circular filter membrane located inside the membrane seat, which causes certain trouble for the staff to take out. Therefore, a membrane seat for a particulate sampler is needed. Summary of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides a membrane seat for a particulate sampler that facilitates the removal of the filter membrane body and reduces the trouble degree for the staff to remove the filter membrane body.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solutions: A membrane seat for a particulate sampler includes a filter membrane body, and also includes a mounting frame, a metering pump, a mounting pipe, a mounting seat, a first sleeve, a second sleeve, and a mounting component. The metering pump is installed inside the mounting frame, the bottom end of the mounting pipe is connected to the metering pump, the mounting pipe is installed on the mounting frame, the top end of the mounting seat is communicated with the mounting pipe, a first groove is provided on the mounting seat, the filter membrane body is placed in the first groove, the first sleeve is slidably sleeved with the first groove, the bottom end of the first sleeve is in close contact with the filter membrane body, the first sleeve is connected to the second sleeve, and the first sleeve and the second sleeve are connected by the mounting component, and multiple groups of mounting components are provided; it also includes an ejection component for ejecting the filter membrane body. The ejection component includes an ejection ring, multiple groups of sleeves, multiple groups of sliding rods, and multiple groups of springs. Multiple groups of sleeves are all installed at the inner bottom of the mounting seat, multiple groups of sliding rods are respectively slidably connected with multiple groups of sleeves, the top ends of multiple groups of sliding rods are all connected to the ejection ring, multiple groups of springs are respectively sleeved with multiple groups of sleeves, the bottom ends of multiple groups of springs are all connected to the mounting seat, the top ends of multiple groups of springs are all connected to the ejection ring, and the top end of the ejection ring is in fit with the filter membrane body.

[0008] Preferably, each group of the mounting components includes two mounting plates, a screw rod, and a nut. The two mounting plates are respectively installed on the mounting seat and the second sleeve, and both of the two mounting plates are provided with first through holes. The screw rod passes through the first through holes and is connected with the nut in a matching manner.

[0009] Preferably, an annular groove is provided at the bottom end of the first groove, and a sealing ring is provided in the annular groove.

[0010] Preferably, a protective cover is provided on the second sleeve.

[0011] Preferably, a pin shaft is provided at the upper end of the protective cover, a pin slot is provided on the second sleeve, and the pin shaft is clamped with the pin slot.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the present utility model provides a membrane seat for a particulate matter sampler, which has the following beneficial effects:

[0014] Start the metering pump, the gas passes through the filter membrane body located in the first groove, and the particulate matter in the air is collected through the filter membrane body. When the collection is completed, the second sleeve is disassembled through the installation component, and the second sleeve is taken out through the first sleeve. At the same time, the ejecting ring is pushed upward by the spring, and the sliding rod slides in the sleeve, and the filter membrane body will push the filter membrane body upward out of the first groove through the ejecting ring, and then the filter membrane body can be taken off by the staff. Therefore, a membrane seat for a particulate matter sampler is provided, which is convenient for taking out the filter membrane body and reduces the trouble of the staff taking out the filter membrane body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an isometric structural view of the present utility model;

[0016] Figure 2 is a schematic structural view of the first sleeve and the second sleeve and their connection structure of the present utility model;

[0017] Figure 3 is the present utility model Figure 2 The enlarged structural view of part A in.

[0018] Reference numerals: 1, filter membrane body; 2, mounting frame; 3, metering pump; 4, mounting pipe; 5, mounting seat; 6, first sleeve; 7, second sleeve; 8, ejecting ring; 9, sleeve; 10, sliding rod; 11, spring; 12, mounting plate; 13, screw; 14, nut; 15, sealing ring; 16, protective cover; 17, pin shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0020] Please refer to Figures 1 - 3 , a membrane seat of a particulate sampler, which includes a filter membrane body 1, and also includes a mounting frame 2, a metering pump 3, a mounting pipe 4, a mounting seat 5, a first sleeve 6, a second sleeve 7 and a mounting component. The metering pump 3 is installed in the mounting frame 2. The bottom end of the mounting pipe 4 is connected to the metering pump 3, and the mounting pipe 4 is installed on the mounting frame 2. The top end of the mounting seat 5 communicates with the mounting pipe 4. A first groove is provided on the mounting seat 5. The filter membrane body 1 is placed in the first groove. The first sleeve 6 is slidably sleeved with the first groove. The bottom end of the first sleeve 6 is in close contact with the filter membrane body 1. The first sleeve 6 is connected to the second sleeve 7, and the first sleeve 6 and the second sleeve 7 are connected by the mounting component. Multiple groups of mounting components are provided; it also includes an ejection component for ejecting the filter membrane body 1. The ejection component includes an ejection ring 8, multiple groups of sleeves 9, multiple groups of sliding rods 10 and multiple groups of springs 11. Multiple groups of sleeves 9 are all installed at the inner bottom of the mounting seat 5. Multiple groups of sliding rods 10 are respectively slidably connected to multiple groups of sleeves 9. The top ends of multiple groups of sliding rods 10 are all connected to the ejection ring 8. Multiple groups of springs 11 are respectively sleeved with multiple groups of sleeves 9. The bottom ends of multiple groups of springs 11 are all connected to the mounting seat 5, and the top ends of multiple groups of springs 11 are all connected to the ejection ring 8. The top end of the ejection ring 8 is in contact with the filter membrane body 1; start the metering pump 3, the gas passes through the filter membrane body 1 located in the first groove, and the particulate matter in the air is collected through the filter membrane body 1. After the collection is completed, the second sleeve 7 is disassembled through the mounting component, and the second sleeve 7 is taken out through the first sleeve 6. At the same time, the ejection ring 8 is pushed upward by the spring 11, and the sliding rod 10 slides in the sleeve 9 at the same time. The filter membrane body 1 will be pushed upward out of the first groove through the ejection ring 8, and then the filter membrane body 1 can be taken off by the staff. Therefore, a membrane seat of a particulate sampler is provided that facilitates the removal of the filter membrane body 1 and reduces the trouble of the staff in removing the filter membrane body 1.

[0021] Please refer to Figures 1 - 3 , each group of mounting components includes two mounting plates 12, a screw 13 and a nut 14. The two mounting plates 12 are respectively installed on the mounting seat 5 and the second sleeve 7. The two mounting plates 12 are both provided with first through holes. The screw 13 passes through the first through holes and is connected with the nut 14 in a matching manner; by passing the screw 13 through the first through holes on the two mounting plates 12 and then tightening with the nut 14, the installation of the second sleeve 9 and the mounting seat 5 can be completed.

[0022] Please refer to Figures 1 - 3 , a circular groove is provided at the bottom end of the first groove, and a sealing ring 15 is provided in the circular groove; the sealing performance between the filter membrane body 1 and the first groove can be improved through the sealing ring 15.

[0023] Please refer to Figures 1 - 3 , a protective cover 16 is provided on the second sleeve 7; the dust falling on the filter membrane body 1 during normal times can be reduced through the protective cover 16.

[0024] Please refer to Figures 1 - 3 , a pin shaft 17 is provided at the upper bottom end of the protective cover 16, and a pin slot is provided on the second sleeve 7. The pin shaft 17 is clamped with the pin slot; the opening and closing of the protective cover 16 are realized through the pin shaft 17.

[0025] In summary, when the membrane seat of this particulate sampler is in use, the metering pump 3 is started, and the gas passes through the filter membrane body 1 located in the first groove. The filter membrane body 1 is used to collect particulate matter in the air. After the collection is completed, the second sleeve 7 is removed through the installation component, and the second sleeve 7 is taken out through the first sleeve 6. At the same time, the ejecting ring 8 is pushed upward by the spring 11. At the same time, the sliding rod 10 slides in the sleeve 9, and the filter membrane body 1 will be pushed upward out of the first groove by the ejecting ring 8, and then the filter membrane body 1 can be removed by the staff.

[0026] This metering pump 3 is a well-known device for those skilled in the art directly purchased on the market. Here we only use it and do not make improvements to its structure and function. We will not elaborate on it in detail here. And the metering pump 3 is provided with a control switch matching it. The installation position of the control switch is selected according to actual use requirements to facilitate operation and control by the operator.

[0027] The above embodiments only represent the specific implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A membrane holder for a particulate sampler, comprising a filter membrane body (1), characterized in that, Further included are: a mounting frame (2), a metering pump (3), a mounting pipe (4), a mounting seat (5), a first sleeve (6), a second sleeve (7) and a mounting assembly. The metering pump (3) is mounted inside the mounting frame (2). The bottom end of the mounting pipe (4) is connected to the metering pump (3), and the mounting pipe (4) is mounted on the mounting frame (2). The top end of the mounting seat (5) communicates with the mounting pipe (4). A first groove is provided on the mounting seat (5). The filter membrane body (1) is placed in the first groove. The first sleeve (6) is slidably sleeved with the first groove. The bottom end of the first sleeve (6) is in close contact with the filter membrane body (1). The first sleeve (6) is connected to the second sleeve (7), and the first sleeve (6) and the second sleeve (7) are connected through the mounting assembly. Multiple groups of the mounting assembly are provided; a jacking assembly for jacking out the filter membrane body (1). The jacking assembly includes a jacking ring (8), multiple groups of sleeves (9), multiple groups of sliding rods (10) and multiple groups of springs (11). Multiple groups of sleeves (9) are all mounted on the inner bottom of the mounting seat (5). Multiple groups of sliding rods (10) are respectively slidably connected to multiple groups of sleeves (9). The top ends of multiple groups of sliding rods (10) are all connected to the jacking ring (8). Multiple groups of springs (11) are respectively sleeved with multiple groups of sleeves (9). The bottom ends of multiple groups of springs (11) are all connected to the mounting seat (5), and the top ends of multiple groups of springs (11) are all connected to the jacking ring (8). The top end of the jacking ring (8) is in fit with the filter membrane body (1).

2. The membrane holder of a particulate matter sampler according to claim 1, characterized in that: Each group of the mounting assembly includes two mounting plates (12), a screw rod (13) and a nut (14). The two mounting plates (12) are respectively mounted on the mounting seat (5) and the second sleeve (7). The two mounting plates (12) are both provided with first through holes. The screw rod (13) passes through the first through holes and is in mating connection with the nut (14).

3. The membrane holder of a particulate matter sampler according to claim 2, characterized in that: An annular groove is provided at the bottom end of the first groove, and a sealing ring (15) is provided in the annular groove.

4. A membrane holder of a particulate matter sampler according to claim 3, characterized in that: A protective cover (16) is provided on the second sleeve (7).

5. A membrane holder of a particulate matter sampler according to claim 4, characterized in that: A pin shaft (17) is provided at the upper bottom end of the protective cover (16), and a pin slot is provided on the second sleeve (7). The pin shaft (17) is snap-fitted with the pin slot.

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