Automatic membrane changer with filter membrane clamp taking-out function

Abstract

The utility model discloses an automatic membrane changer with a filter membrane clamp taking-out function, which relates to the technical field of environmental monitoring and comprises a membrane changer body. A to-be-sampled area is arranged on the membrane changer body; the to-be-sampled area is provided with a cylindrical groove for placing a filter membrane clamp; a taking-out hole penetrating through the bottom of the cylindrical groove is formed in the bottom of the cylindrical groove; the projection of the taking-out hole in the vertical direction is located in the projection of the cylindrical groove in the vertical direction. The automatic membrane changer with the filter membrane clamp taking-out function solves the problem that in the prior art, when a filter membrane clamp is reversely placed in a to-be-sampled area of the automatic membrane changer, the taking-out and returning steps are tedious, and the filter membrane clamp which is reversely placed can be conveniently taken out.

Description

Automatic membrane changer with filter clamp removal function Technical Field

[0001] This utility model relates to the field of environmental monitoring technology, and in particular to an automatic membrane changer with a filter membrane clip removal function. Background Technology

[0002] Air particulate matter samplers can capture suspended particulate matter in the ambient atmosphere and transfer it to a filter membrane. The filter membrane clamp is a fixture used to fix the filter membrane, which makes it easy for operators to grab and move the filter membrane.

[0003] To facilitate the storage of filter membrane clips and determine their order, workers stack the clips sequentially within a filter membrane container. The clips are coaxially confined within the container in a stacked manner. In existing technology, such as the filter membrane clip storage cylinder disclosed in Chinese Patent Application No. 202420951470.5, one filter membrane clip can be removed from the bottom of the container body 1 at a time and placed in the receiving groove of the base 3. In practical use, this device can be used without the base structure in an automatic membrane changer. Part of the automatic membrane changer's structure is shown in Figure 1. It has a sampling area 01, and the opening of the sampling area 01 is equipped with a clamping block and positioning pin structure identical to the base in the prior art. The device uses a robotic arm to move the storage cylinder body vertically, transferring the filter membrane clip to the sampling area.

[0004] However, when staff move the filter membrane clip to the storage cylinder in the comparison document, they may place the filter membrane clip upside down. Although the filter membrane clip is cylindrical, it has a filter membrane support to hold the filter membrane in place. This support is meant to support the filter membrane from below. There is no filter membrane support on the upper side of the filter membrane. Although the filter membrane support is a mesh structure that allows airflow, it will still block particles from falling onto the filter membrane. When the upside-down filter membrane clip is placed in the sampling area 01, it will still be in an inverted state when it is moved to the collection port 02. Since there is no filter membrane support on the lower side of the filter membrane, which should be located on the lower side to support the filter membrane, the lower side of the filter membrane loses support after being placed upside down. When air is pumped out, the filter membrane is easily sucked away from the filter membrane clip due to uneven force. In addition, the filter membrane support will also block some particles from falling onto the filter membrane. Therefore, the upside-down filter membrane clip cannot be used directly for sampling.

[0005] Removing this filter clip by hand is difficult for staff because its upper surface is flush with the upper surface of the sampling area 01, and its cylindrical side is pressed against the inner cylindrical wall of the sampling area 01. This flush and pressing position is designed to ensure precise positioning by the robotic arm, but it also makes it difficult for staff to apply force to the clip, thus hindering its movement within the sampling area 01. Therefore, to actually remove the reversed filter clip, the membrane changer needs to be rotated twice. Specifically, a robotic arm specifically designed for membrane changing must first move the filter clip from the sampling area 01 to the collection port 02, and then from the collection port 02 to the completed sampling area 03. Only then can the lifting mechanism of the completed sampling area 03 be used to remove the reversed filter clip. This process is cumbersome. Summary of the Invention

[0006] To address the aforementioned technical problems, this utility model provides an automatic membrane changer with a filter membrane clip removal function, which facilitates the removal of the filter membrane clip.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] The present invention provides an automatic membrane changer with a filter membrane clip removal function, comprising a membrane changer body; a sampling area is provided on the membrane changer body; the sampling area has a cylindrical groove for placing the filter membrane clip; a removal hole penetrating the bottom of the cylindrical groove is provided at the bottom of the cylindrical groove; the projection of the removal hole in the vertical direction is within the projection of the cylindrical groove in the vertical direction.

[0009] The automatic membrane changer with filter membrane clip removal function provided by this utility model preferably includes a lifting block in the sampling area; the lifting block is slidably fixed in the removal hole; the upper end of the lifting block can extend to the bottom of the groove above the cylindrical groove.

[0010] The automatic membrane changer with filter membrane clamp removal function provided by this utility model is preferably such that when the upper end of the lifting block extends above the bottom of the cylindrical groove, the lower end of the lifting block extends below the lower opening of the removal hole.

[0011] The automatic membrane changer with filter membrane clamp removal function provided by this utility model preferably includes a lifting block comprising a straight rod and a cylindrical platform; a cylindrical platform groove is formed at the bottom of the cylindrical groove; the cylindrical diameter of the platform is equal to the cylindrical hole diameter of the platform groove; the cylindrical height of the platform is equal to the cylindrical hole depth of the platform groove; and the straight rod is fixed to the bottom surface of the platform.

[0012] The above technical solution has the following advantages or beneficial effects:

[0013] This utility model discloses an automatic membrane changer with a filter membrane clip removal function, relating to the field of environmental monitoring technology. It includes a membrane changer body; the membrane changer body has a sampling area; the sampling area has a cylindrical groove for placing the filter membrane clip; the bottom of the cylindrical groove has a removal hole penetrating through the bottom of the cylindrical groove; the vertical projection of the removal hole lies within the vertical projection of the cylindrical groove. The automatic membrane changer with a filter membrane clip removal function provided by this utility model solves the problem in the prior art where the filter membrane clip is placed backwards in the sampling area of ​​the automatic membrane changer, resulting in a cumbersome process for removing and correcting it, thus facilitating the removal of the reversed filter membrane clip. Attached Figure Description

[0014] The present invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings. The drawings are not intentionally drawn to scale; the focus is on illustrating the gist of the invention.

[0015] Figure 1 is a partial structural schematic diagram of an existing automatic film changer provided in the background art of this utility model.

[0016] Figure 2 is a schematic diagram of the overall structure of the automatic membrane changer with filter membrane clip removal function provided in Embodiment 1 of this utility model.

[0017] Figure 3 is a schematic diagram of the lifting block structure of the automatic membrane changer with filter membrane clamp removal function provided in Embodiment 1 of this utility model.

[0018] Figure 4 is a schematic diagram of the structure of the automatic membrane changer with filter membrane clamp removal function provided in Embodiment 1 of this utility model when the lifting block is higher than the bottom of the cylindrical groove. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. It should also be noted that the terminology used in this utility model is for describing specific implementations only and is not intended to limit the exemplary implementations according to this application.

[0020] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without inventive effort are within the protection scope of the present utility model.

[0021] Example 1:

[0022] The automatic membrane changer with filter membrane clip removal function provided in Embodiment 1 of this utility model is shown in Figures 1 to 4. It includes a membrane changer body; a sampling area 1 is provided on the membrane changer body; the sampling area 1 has a cylindrical groove 11 for placing the filter membrane clip; a removal hole 12 penetrating the bottom of the cylindrical groove 11 is provided at the bottom of the cylindrical groove 11; the projection of the removal hole 12 in the vertical direction is within the projection of the cylindrical groove 11 in the vertical direction.

[0023] When using the automatic membrane changer with filter membrane clip removal function, an external robotic arm drives a filter membrane clip storage cylinder containing stacked filter membrane clips (such as the filter membrane clip storage cylinder disclosed in Chinese Patent Application No. 202420951470.5 for easy removal of filter membrane clips) to be placed above the sampling area 1 and moved downwards, causing the lower end spring of the filter membrane clip storage cylinder to slide. The filter membrane clip storage cylinder will output a filter membrane clip into the cylindrical groove 11, and the upper side of the filter membrane clip in the cylindrical groove 11 is flush with the upper opening of the cylindrical groove 11, and the cylindrical side wall of the filter membrane clip is in close contact with the inner wall of the cylindrical groove 11. However, this filter membrane clip may be placed in the wrong position because the operator may accidentally place the filter membrane clip in the wrong position. When storing the membrane clips, the filter membrane clips may be placed upside down. Compared to the prior art, if the filter membrane clips in the cylindrical groove 11 are placed upside down, the automatic membrane transfer structure of the automatic membrane changer is required to first move them to the sampling port, and then move them from the sampling port to the sampling completion area, which is a cumbersome operation. In this embodiment, since a take-out hole 12 is opened at the bottom of the cylindrical groove 11, the operator can use a rod-shaped tool to insert from the lower side of the take-out hole 12 and move it upward to lift the filter membrane clip, so that the upper end of the filter membrane clip is higher than the upper opening of the cylindrical groove 11. This makes it convenient for the operator to grab the filter membrane clip from both sides of the cylinder. After the operator manually flips the filter membrane clip, it is placed back into the cylindrical groove 11, which is convenient.

[0024] The automatic membrane changer with filter membrane clip removal function provided in Embodiment 1 of this utility model solves the problem in the prior art that when the filter membrane clip is placed upside down in the sampling area of ​​the automatic membrane changer, the step of removing and correcting it is cumbersome, and it can facilitate the removal of the filter membrane clip that has been placed upside down.

[0025] As a preferred embodiment, the sampling area 1 includes a lifting block 13; the lifting block 13 is slidably fixed within the extraction hole 12; the upper end of the lifting block 13 can extend to the bottom of the cylindrical groove 11. The lifting block 13 can slide within the extraction hole 12, eliminating the need for operators to find additional rod-shaped tools to insert into the extraction hole 12. Operators simply need to push the lifting block 13 vertically along the extraction hole 12, thereby moving the filter membrane clamp located above the lifting block 13.

[0026] To facilitate operation of the lifting block 13 by staff, in this embodiment, when the upper end of the lifting block 13 extends above the bottom of the cylindrical groove 11, the lower end of the lifting block 13 extends below the lower opening of the extraction hole 12. When the upper end of the lifting block 13 is above the bottom of the cylindrical groove 11, the filter membrane clamp inside the cylindrical groove 11 is lifted up. At this time, the lower end of the lifting block 13 is still below the extraction hole 12, making it convenient for staff to grasp.

[0027] As a preferred embodiment, in this embodiment, the lifting block 13 includes a straight rod 131 and a cylindrical platform 132; the bottom of the cylindrical groove 11 is provided with a cylindrical platform groove 111; the diameter of the platform 132 is equal to the aperture of the platform groove 111; the height of the platform 132 is equal to the depth of the platform groove 111; the straight rod 131 is fixed to the bottom surface of the platform 132. Since the filter membrane clamp consists of two annular fixing plates clamping a filter membrane, if a strip-shaped tool is used to directly contact the filter membrane, and the filter membrane exerts force on the annular fixing plates of the filter membrane clamp, causing the filter membrane clamp to rise as a whole, the filter membrane is easily damaged by the strip-shaped tool. In this embodiment, the lifting block 13 is configured as a straight rod 131 that can be slidably fixed in the extraction hole 12, and is composed of a platform 132 located on the upper side of the straight rod 131 for direct contact with the filter membrane clamp. The platform 132 can prevent the straight rod 131 from sliding down from the extraction hole 12. On the other hand, compared with the end of the strip-shaped tool that can directly pass through the extraction hole 12, the platform 132 increases the contact area with the filter membrane clamp, so that the annular fixing plate of the filter membrane clamp contacts the lifting block 13, and the annular fixing plate of the filter membrane clamp is subjected to force, causing the filter membrane clamp to move upward as a whole.

[0028] In summary, this utility model discloses an automatic membrane changer with a filter membrane clip removal function, relating to the field of environmental monitoring technology. The changer includes a membrane changer body; the membrane changer body has a sampling area; the sampling area has a cylindrical groove for placing the filter membrane clip; the bottom of the cylindrical groove has a removal hole penetrating through the bottom of the cylindrical groove; the vertical projection of the removal hole lies within the vertical projection of the cylindrical groove. The automatic membrane changer with a filter membrane clip removal function provided by this utility model solves the problem in the prior art where the filter membrane clip is placed backwards in the sampling area of ​​the automatic membrane changer, resulting in a cumbersome process for repositioning it, and facilitates the removal of the reversed filter membrane clip.

[0029] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the contents of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. An automatic membrane changer with a filter membrane clamp removal function, characterized in that, The device includes a membrane changer body; the membrane changer body has a sampling area; the sampling area has a cylindrical groove for placing a filter membrane clip; the bottom of the cylindrical groove has a removal hole that penetrates the bottom of the cylindrical groove; the projection of the removal hole in the vertical direction is within the projection of the cylindrical groove in the vertical direction.

2. The automatic membrane changer with filter membrane clamp removal function as described in claim 1, characterized in that, The sampling area includes a lifting block; the lifting block is slidably fixed inside the extraction hole; the upper end of the lifting block can extend to the bottom of the groove above the cylindrical groove.

3. The automatic membrane changer with filter membrane clamp removal function as described in claim 2, characterized in that, When the upper end of the lifting block extends above the bottom of the cylindrical groove, the lower end of the lifting block extends below the lower opening of the extraction hole.

4. The automatic membrane changer with filter membrane clamp removal function as described in claim 2, characterized in that, The lifting block includes a straight rod and a cylindrical platform; the bottom of the cylindrical groove has a cylindrical platform groove; the cylindrical diameter of the platform is equal to the cylindrical hole diameter of the platform groove; the cylindrical height of the platform is equal to the cylindrical hole depth of the platform groove; the straight rod is fixed to the bottom surface of the platform.

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