Negative pressure operating device for laboratory gas detection

Abstract

This utility model relates to the field of laboratory gas detection technology, specifically to a negative pressure operating device for laboratory gas detection. It includes a main body and a suction cup assembly. The suction cup assembly includes a mounting base, an L-shaped base, an adjusting screw, a cylindrical rod, a vacuum suction cup, a filter screen, a transparent cylinder, a connecting post, and protective components. The device is placed on an adsorption platform, with multiple vacuum suction cups at its bottom adhering to the platform. Then, by applying an external force downwards from the top of the main body, the vacuum suction cups are forced to expel internal air, creating a pressure difference that allows the vacuum suction cups to contact and fix with the adsorption platform. This solves the problem that existing operating devices, due to the internal extraction components, are prone to vibration during operation, leading to device displacement during detection, significantly reducing operational stability and hindering stable detection.

Description

Technical Field

[0001] This utility model relates to the field of laboratory gas detection technology, and in particular to a negative pressure operating device for laboratory gas detection. Background Technology

[0002] When performing gas detection inside the laboratory, a negative pressure gas operating device is required to facilitate negative pressure extraction of gas and achieve gas detection.

[0003] When using existing gas negative pressure operating devices, the internal extraction components cause vibrations during operation, which can lead to device displacement during testing. This significantly reduces the stability of the device and hinders stable testing. Utility Model Content

[0004] The purpose of this invention is to provide a negative pressure operating device for laboratory gas detection, which aims to solve the problem that existing operating devices are prone to vibration during operation due to the internal extraction components, which can lead to device displacement during detection, greatly reducing the stability of the device and hindering stable detection.

[0005] To achieve the above objectives, this utility model provides a negative pressure operating device for laboratory gas detection, including a device body, an air extraction component inside the device body, and a suction cup component.

[0006] The suction cup assembly includes a mounting base, an L-shaped base, an adjusting screw, a cylindrical rod, a vacuum suction cup, a filter screen, a transparent cylinder, insertion posts, and a protective component. The mounting base is detachably connected to the housing of the main body of the device and multiple mounting bases are symmetrically arranged. The L-shaped base is detachably connected to the mounting base and is located on top of the mounting base. The cylindrical rod is integrally mounted on the bottom of the adjusting screw and threadedly connected to the L-shaped base, penetrating through it. The vacuum suction cup is fixed to the bottom of the cylindrical rod. The filter screen is installed on both sides of the main body of the device. Four insertion posts are arranged in a ring at intervals on the bottom of the transparent cylinder. The insertion posts are detachably connected to the mounting base. The top end face of the transparent cylinder abuts against the bottom end face of the L-shaped base and is sleeved on the outside of the adjusting screw. The protective component is located on the top of the L-shaped base.

[0007] The device body has a connecting pipe at the rear and a connector assembly on the side of the connecting pipe away from the device body.

[0008] The protective component includes a protective sleeve, a connecting plate, and a positioning component. The protective sleeve is sleeved and installed on the top of the adjusting screw. The connecting plate is integrally disposed on the top of the protective sleeve. The positioning component is connected to the connecting plate and cooperates with the mounting base.

[0009] The positioning component includes a first positioning rod and a second positioning rod. The first positioning rod is threadedly connected to the connecting plate and slidably connected to the mounting base, and is disposed on one side of the connecting plate. The second positioning rod is threadedly connected to the connecting plate and slidably connected to the mounting base, and is disposed on the side of the connecting plate away from the first positioning rod.

[0010] The negative pressure operating device for laboratory gas detection further includes a moving component, which includes a handle and a connecting rod. The handle is detachably connected to the housing of the main body of the device and is symmetrically arranged. The connecting rod is welded between the handles.

[0011] This utility model discloses a negative pressure operating device for laboratory gas detection. In use, the position of the vacuum suction cups is changed by turning the adjusting screws with a wrench. The device is then placed on the adsorption platform, ensuring the multiple vacuum suction cups at its bottom are in contact with the platform. By applying an external force downwards from the top of the main body of the device, the vacuum suction cups are forced to expel internal air, creating a pressure difference that allows the suction cups to contact and fix with the adsorption platform. This improves the stability of the device during operation and facilitates stable detection. Furthermore, it solves the problem of existing operating devices that, due to the internal extraction components, are prone to vibration during operation, leading to device displacement during detection and significantly reducing operational stability, thus hindering stable detection. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the overall structure of the negative pressure operating device for laboratory gas detection according to the first embodiment of this utility model.

[0014] Figure 2 This is a schematic diagram of the mounting base according to the first embodiment of this utility model.

[0015] Figure 3 This is a schematic diagram of the adjusting screw according to the first embodiment of the present invention.

[0016] Figure 4 This is a schematic diagram of the structure of the transparent tube according to the first embodiment of this utility model.

[0017] Figure 5 This is a schematic diagram of the overall structure of the negative pressure operating device for laboratory gas detection according to the second embodiment of this utility model.

[0018] In the diagram: 101-Main body of the device, 102-Mounting base, 103-L-shaped base, 104-Adjusting screw, 105-Cylindrical rod, 106-Vacuum suction cup, 107-Filter screen, 108-Transparent cylinder, 109-Plug-in post, 110-Connecting pipe, 111-Connector assembly, 112-Cylinder, 113-Connecting plate, 114-First positioning rod, 115-Second positioning rod, 201-Handle, 202-Connecting rod. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0020] Example 1:

[0021] like Figures 1 to 4 As shown, where Figure 1 This is a schematic diagram of the overall structure of a negative pressure operating device used for laboratory gas detection. Figure 2 This is a structural schematic diagram of mounting base 102. Figure 3 This is a schematic diagram of the adjusting screw 104. Figure 4 This is a structural schematic diagram of the transparent cylinder 108. This utility model provides a negative pressure operating device for laboratory gas detection: it includes a main body 101 and a suction cup assembly. The suction cup assembly includes a mounting base 102, an L-shaped base 103, an adjusting screw 104, a cylindrical rod 105, a vacuum suction cup 106, a filter screen 107, a transparent cylinder 108, a connecting post 109, and a protective component. The protective component includes a protective sleeve 112, a connecting plate 113, and a positioning component. The positioning component includes a first positioning rod 114 and a second positioning rod 115. The aforementioned solution solves the problem that existing operating devices, due to the internal extraction component, are prone to vibration during operation, leading to device displacement during detection, greatly reducing operational stability and hindering stable detection. It is understood that the aforementioned solution improves operational stability and further enhances stable detection.

[0022] In this embodiment, an air extraction assembly is provided inside the main body 101 of the device. The main body 101 of the device can adopt the technology disclosed below, such as the main structure disclosed in the prior art CN115950694A, or other prior art.

[0023] The mounting base 102 is detachably connected to the housing of the device body 101, and multiple such bases are symmetrically arranged. The L-shaped base 103 is detachably connected to the mounting base 102 and is located on top of the mounting base 102. The bottom of the adjusting screw 104 is integrally provided with the cylindrical rod 105 and is threadedly connected to the L-shaped base 103, passing through the L-shaped base 103. The vacuum suction cup 106 is fixed to the bottom of the cylindrical rod 105. The filter screen 107 is installed on both sides of the device body 101. The bottom of the transparent cylinder 108 is provided with four insertion posts 109 arranged in a ring at intervals. The insertion posts 109 are detachably connected to the mounting base 102. The top end face of the transparent cylinder 108 abuts against the bottom end face of the L-shaped base 103 and is sleeved on the outside of the adjusting screw 104. The protective component is provided on the top of the L-shaped base 103. The mounting base 102 is I-shaped and fixed with bolts. The L-shaped base 103 is fixed with bolts arranged from bottom to top. The L-shaped base 103 has a threaded hole that mates with the adjusting screw 104. The mounting base 102 has a through hole larger than the adjusting screw 104. The cylindrical rod 105 is integrally formed at the bottom of the adjusting screw 104 to ensure connection strength. The vacuum suction cup 106 is fixed at the bottom of the cylindrical rod 105 and can contact and fix with the adsorption platform at the placement location during operation. The filter screens 107 are symmetrically arranged and are used to assist in heat dissipation of the internal electrical components of the device body 101, and can filter the external air entering the interior. To filter and reduce impurities from entering the interior, the transparent cylinder 108 has four insertion posts 109 arranged in a ring at intervals at its bottom. The four insertion posts 109 can be directly slidably inserted into the four insertion holes on the mounting base 102. The transparent cylinder 108 allows for easy observation of the mating position of the adjusting screw 104 and the L-shaped base 103, preventing complete disengagement. It also allows for mating of the external thread end of the adjusting screw 104 located on the lower side of the L-shaped base 103. During installation, the transparent cylinder 108 is installed first, followed by the L-shaped base 103. The protective component protects the external thread end of the adjusting screw 104 located on the upper side of the L-shaped base 103.

[0024] Secondly, a connecting pipe 110 is provided on the rear side of the device body 101, and a connector assembly 111 is provided on the side of the connecting pipe 110 away from the device body 101. The connecting pipe 110 and the connector assembly 111 cooperate to perform detection, which can be achieved by adopting the technical solution disclosed in the prior art CN115950694A. That is, the device body 101 is not within the scope of protection of this application.

[0025] Then, the protective sleeve 112 is sleeved and installed on the top of the adjusting screw 104; the connecting plate 113 is integrally disposed on the top of the protective sleeve 112; the positioning component is connected to the connecting plate 113 and cooperates with the mounting base 102. The length of the protective sleeve 112 is greater than the length of the threaded section of the adjusting screw 104, the connecting plate 113 is a rectangular plate, directly disposed on the top of the protective sleeve 112, and the positioning component is used to achieve limiting and quick disassembly.

[0026] Finally, the first positioning rod 114 is threadedly connected to the connecting plate 113 and slidably connected to the mounting base 102, and is located on one side of the connecting plate 113; the second positioning rod 115 is threadedly connected to the connecting plate 113 and slidably connected to the mounting base 102, and is located on the side of the connecting plate 113 away from the first positioning rod 114. The first positioning rod 114 and the second positioning rod 115 have the same size, and their top external threaded ends are directly connected to the bottom threaded holes of the connecting plate 113. Insertion holes are provided on the mounting base 102 to facilitate the insertion of the first positioning rod 114 and the second positioning rod 115. When the adjusting screw 104 is at its maximum limit position on the top external threaded section of the L-shaped seat 103, the first positioning rod 114 and the second positioning rod 115 will not detach from the mounting base 102 after insertion, and the top of the inner part of the protective sleeve 112 will not abut against the top of the adjusting screw 104.

[0027] To address the problem that existing operating devices are prone to vibration during operation due to the internal extraction components, leading to device displacement during testing and significantly reducing operational stability, this invention addresses the issue of multiple operators working together to lift the main body 101 of the device and suspend it in the air. Then, by turning the adjusting screw 104 with a wrench, the position of the vacuum suction cups 106 is changed. This adjustment primarily adjusts the working height of the device. During adjustment, the distance between the cylindrical rod 105 and the bottom surface of the mounting base 102 can be measured to ensure that the adjusted positions of the multiple vacuum suction cups 106 are as consistent as possible. If height adjustment is not required during use, the device can be used directly. Then, the device is placed on the suction platform at the designated location, ensuring that the multiple suction cups at the bottom are aligned. The vacuum suction cup 106 is attached to the platform. Then, by applying an external force to the top of the device body 101 housing downwards, the vacuum suction cup 106 can expel the air inside under the external force, thereby generating an internal and external pressure difference. This allows the vacuum suction cup 106 to contact and fix with the adsorption platform, reducing displacement caused by vibration of the internal air extraction components during device testing. This improves the stability of the device during operation and facilitates stable testing. After the device body 101 is fixed, negative pressure gas extraction can be performed for testing. This solves the problem that existing operating devices are prone to vibration during operation due to the internal extraction components, which leads to displacement of the device during testing, greatly reducing the stability of the device and hindering stable testing.

[0028] Example 2:

[0029] like Figure 5 As shown, where Figure 5 This is a schematic diagram of the overall structure of a negative pressure operating device for laboratory gas detection. Based on the first embodiment, this utility model provides a negative pressure operating device for laboratory gas detection. The negative pressure operating device for laboratory gas detection also includes a moving component, which includes a handle 201 and a connecting rod 202.

[0030] The handles 201 are detachably connected to the housing of the main body 101 of the device and are symmetrically arranged; the connecting rods 202 are welded between the handles 201. Multiple handles 201 are T-shaped, with discs fixed by bolts, and the ends of the connecting rods 202 are welded and fixed.

[0031] In this embodiment, by providing the moving component, the main body 101 of the device can be moved or suspended to adjust the position of the vacuum suction cup 106.

[0032] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A negative pressure operating device for laboratory gas detection, comprising a device body, wherein a suction assembly is disposed inside the device body, characterized in that: It also includes suction cup components; The suction cup assembly includes a mounting base, an L-shaped base, an adjusting screw, a cylindrical rod, a vacuum suction cup, a filter screen, a transparent cylinder, insertion posts, and a protective component. The mounting base is detachably connected to the housing of the main body of the device and multiple mounting bases are symmetrically arranged. The L-shaped base is detachably connected to the mounting base and is located on top of the mounting base. The cylindrical rod is integrally mounted on the bottom of the adjusting screw and threadedly connected to the L-shaped base, penetrating through it. The vacuum suction cup is fixed to the bottom of the cylindrical rod. The filter screen is installed on both sides of the main body of the device. Four insertion posts are arranged in a ring at intervals on the bottom of the transparent cylinder. The insertion posts are detachably connected to the mounting base. The top end face of the transparent cylinder abuts against the bottom end face of the L-shaped base and is sleeved on the outside of the adjusting screw. The protective component is located on the top of the L-shaped base.

2. The negative pressure operating device for laboratory gas detection as described in claim 1, characterized in that: A connecting pipe is provided on the rear side of the main body of the device, and a connector assembly is provided on the side of the connecting pipe away from the main body of the device.

3. The negative pressure operating device for laboratory gas detection as described in claim 1, characterized in that: The protective component includes a protective sleeve, a connecting plate, and a positioning component. The protective sleeve is sleeved and installed on the top of the adjusting screw. The connecting plate is integrally disposed on the top of the protective sleeve. The positioning component is connected to the connecting plate and cooperates with the mounting base.

4. The negative pressure operating device for laboratory gas detection as described in claim 3, characterized in that: The positioning component includes a first positioning rod and a second positioning rod. The first positioning rod is threadedly connected to the connecting plate and slidably connected to the mounting base, and is disposed on one side of the connecting plate. The second positioning rod is threadedly connected to the connecting plate and slidably connected to the mounting base, and is disposed on the side of the connecting plate away from the first positioning rod.

5. The negative pressure operating device for laboratory gas detection as described in claim 1, characterized in that... : The negative pressure operating device for laboratory gas detection also includes a moving component, which includes a handle and a connecting rod. The handle is detachably connected to the housing of the main body of the device and is symmetrically arranged; the connecting rod is welded between the handles.

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