Pipeline connecting structure of harmful gas collecting workbench

Abstract

A pipeline connecting structure of a harmful gas collecting workbench comprises a workbench body, the workbench body comprises a table top and a dust collecting cover, the dust collecting cover is detachably connected to the table top, a butt joint opening is formed in the bottom of the dust collecting cover, a butt joint pipeline is detachably connected to the butt joint opening, and the butt joint pipeline is connected to the table top. A fastening mechanism is fixedly arranged between the butt joint pipeline and the dust collection cover, and the bottom of the butt joint pipeline is connected with an external dust removal pipeline in a matched mode; the butt joint pipeline and the dust collection cover are separately arranged instead of being integrally formed, so that a customer can select and install the butt joint pipelines with different pipe diameters according to own requirements, for a manufacturer, only the butt joint pipelines with the same specification and different specifications need to be produced for the dust collection cover, and the production cost of the manufacturer is reduced; through the arrangement of the threads and the supporting shaft section, the butt joint pipeline can be tightly connected to the dust collection cover, meanwhile, the extrusion stress is reduced, and connection is more stable.

Description

Technical Field

[0001] The present application relates to the field of mechanical processing technology, and in particular to a pipeline connection structure of a harmful gas collection workbench. Background Art

[0002] A dust removal workbench is a piece of equipment used in industrial manufacturing or laboratory environments to collect and control dust, pollutants or particulate matter generated in the work area, keep the working environment clean, and prevent pollutants from spreading into the surrounding environment.

[0003] The dust removal workbench in the prior art is usually composed of a table with pores and a dust collecting hood, which is connected to an external negative pressure pipe. The harmful gas or fine dust on the table is drawn out from the pores through the negative pressure and falls into the dust collecting hood, and then is sucked from the dust collecting hood into the negative pressure pipe and discharged. In production, the bottom of the dust collecting hood is usually provided with a shaft section for docking with the negative pressure pipe. Usually, this docking shaft section is integrally formed with the dust collecting hood, so the pipe diameter of the docking shaft section cannot be changed. Some users have their own negative pressure pipes. When purchasing, they only want to buy a dust removal workbench, and do not want to buy it together with the matching negative pressure pipe. If the pipe diameter of a workbench of a certain specification does not correspond to the specification of the user's negative pressure pipe after purchasing, the user needs to purchase an additional pipe connector to connect the two. However, this connection method has poor air tightness and unstable connection, and a short service life. This forces the factory to produce workbenches of different diameters to meet user needs. For the factory, this makes the production cost higher.

[0004] Therefore, it is necessary for the inventor to design a new dust removal workbench pipeline connection structure to overcome the above problems. Summary of the invention

[0005] The main purpose of the present application is to provide a harmful gas collection workbench pipeline connection structure to solve the problem that the pipe diameter of the dust hood docking shaft section in the related art cannot be adjusted.

[0006] In order to achieve the above-mentioned purpose, the present application provides a harmful gas collection workbench pipeline connection structure, including a workbench body, the workbench body including a table top and a dust hood, the dust hood is detachably connected to the table top, the bottom of the dust hood has a docking port, the docking port is detachably connected to a docking pipe, a fastening mechanism is fixedly arranged between the docking pipe and the dust hood, and the bottom of the docking pipe is cooperatively connected to an external dust removal pipe.

[0007] Preferably, a limiting structure is fixedly arranged between the docking pipe and the docking port.

[0008] Preferably, the limiting structure comprises a limiting shaft segment and an annular limiting groove which cooperate with each other, the limiting shaft segment is located at the top of the docking pipe, and the annular limiting groove is provided on the inner side of the docking port.

[0009] Preferably, the thickness of the limiting shaft segment is equal to the depth of the annular limiting groove.

[0010] Preferably, the fastening mechanism comprises a plug-in shaft section and a sleeve, and threads are provided between the outer wall of the plug-in shaft section and the inner wall of the sleeve.

[0011] Preferably, the top of the sleeve has a supporting shaft section, and the top surface of the supporting shaft section abuts against the bottom of the dust collecting hood.

[0012] Preferably, the docking pipe further comprises a transition shaft segment and a docking shaft segment, and the plug-in shaft segment, the transition shaft segment and the docking shaft segment are connected in sequence.

[0013] Preferably, the dust collecting hood and the table top are fixedly connected by bolts.

[0014] Preferably, a partition is detachably connected to the interior of the dust collecting hood.

[0015] Preferably, a sealing structure is fixedly arranged between the dust collecting hood and the table top.

[0016] The utility model provides a harmful gas collection workbench pipeline connection structure, which has the following beneficial effects compared with the prior art:

[0017] 1. By setting the docking pipe and the dust hood separately instead of forming them as one piece, customers can choose docking pipes of different diameters according to their needs. For manufacturers, dust hoods can still be produced in the same specification, and only docking pipes of different specifications need to be produced, which reduces the production cost of manufacturers.

[0018] Second, by setting the thread and the supporting shaft section, the docking pipe can be tightly connected to the dust collecting hood, while also reducing the extrusion stress and making the connection more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0020] Figure 1 It is an exploded view of the table and dust collecting hood structure of the utility model;

[0021] Figure 2 This is the internal structure diagram of the dust collecting hood of the utility model;

[0022] Figure 3 This is an exploded view of the structure of the butt-joined pipe of the utility model;

[0023] Figure 4 This is a cross-sectional view of the dust collecting hood and the docking pipe of the utility model;

[0024] Figure 5 This is a structural diagram of the butt-jointed pipeline of the utility model.

[0025] Among them: 1. table; 2. dust hood; 3. docking port; 4. docking pipe; 401. limiting shaft section; 402. plug-in shaft section; 403. transition shaft section; 404. docking shaft section; 5. annular limiting groove; 6. sleeve; 7. supporting shaft section; 8. partition. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0029] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0030] In addition, the term "plurality" shall mean two or more.

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] like Figures 1 to 5 As shown, a pipeline connection structure of a harmful gas collection workbench includes a workbench body, the workbench body includes a table top 1 and a dust hood 2, the dust hood 2 is detachably connected to the table top 1, the bottom of the dust hood 2 is provided with a docking port 3, a docking pipe 4 is detachably connected to the docking port 3, a fastening mechanism is fixedly arranged between the docking pipe 4 and the dust hood 2, and the bottom of the docking pipe 4 is cooperatively connected with an external dust removal pipe; when working, the table top 1, the dust hood 2, and the docking pipe 4 are independent parts, when assembling, first insert the docking pipe 4 into the docking pipe 4, fasten it by the fastening mechanism, and then fix the fastened dust hood 2 on the bottom of the table top 1, that is, the assembly is completed, when installing the negative pressure pipe, the negative pressure pipe is docked with the bottom of the docking pipe 4.

[0033] A limiting structure is fixedly arranged between the docking pipe 4 and the docking port 3; the limiting structure includes a limiting shaft segment 401 and an annular limiting groove 5 that cooperate with each other, the limiting shaft segment 401 is located at the top of the docking pipe 4, and the annular limiting groove 5 is arranged on the inner side of the docking port 3; the thickness of the limiting shaft segment 401 is equal to the depth of the annular limiting groove 5; when working, the docking pipe 4 is inserted into the docking port 3, the limiting shaft segment 401 will fall into the annular limiting groove 5 and abut tightly against the annular limiting groove 5, the thickness of the limiting shaft segment 401 is equal to the depth of the annular limiting groove 5, so that the inner bottom surface of the dust collecting hood 2 is a flat plane, which is not easy to accumulate dust. It should be noted that the limiting shaft segment 401 here can still rotate in the annular limiting groove 5. If it is necessary to make the two unable to rotate, it is only necessary to set the limiting shaft segment 401 and the limiting groove to be special-shaped, such as a hexagon.

[0034] The fastening mechanism includes a plug-in shaft section 402 and a sleeve 6, and there are threads between the outer wall of the plug-in shaft section 402 and the inner wall of the sleeve 6; the top of the sleeve 6 is provided with a supporting shaft section 7, and the top surface of the supporting shaft section 7 abuts against the bottom of the dust hood 2; when working, after the plug-in shaft section 402 is plugged into the docking port 3, the sleeve 6 is inserted from the bottom to the top, and then the thread is tightened so that the top supporting shaft section 7 of the sleeve 6 abuts against the bottom of the dust hood 2, the installation of the docking pipe 4 is completed, and the supporting shaft section 7 will increase the contact area between the two, thereby making the connection more stable.

[0035] The docking pipe 4 also has a transition shaft section 403 and a docking shaft section 404. The plug-in shaft section 402, the transition shaft section 403, and the docking shaft section 404 are connected in sequence. During operation, to produce docking pipes 4 of different diameters, it is only necessary to set the docking shaft section 404 to different diameters.

[0036] The dust hood 2 is fixedly connected to the table top 1 by bolts; a partition 8 is detachably connected to the inside of the dust hood 2; the partition 8 can make the air pressure at various places inside the dust hood 2 more stable, and the partition 8 can be inserted and positioned in the dust hood 2 by means of limit grooves, limit blocks, etc., and its positioning structure should be easy to disassemble and assemble, and the partition 8 can be removed when installing the docking pipe 4.

[0037] A sealing structure is also fixedly arranged between the dust collecting hood 2 and the table top 1 ; the air tightness between the table top 1 and the dust collecting hood 2 is ensured by the sealing structure.

[0038] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A harmful gas collection workbench pipeline connection structure, including a workbench body, characterized in that: The workbench body comprises a table top (1) and a dust hood (2); the dust hood (2) is detachably connected to the table top (1); the bottom of the dust hood (2) is provided with a docking port (3); a docking pipe (4) is detachably connected to the docking port (3); a fastening mechanism is fixedly provided between the docking pipe (4) and the dust hood (2); and the bottom of the docking pipe (4) is cooperatively connected to an external dust removal pipe.

2. A harmful gas collection workbench pipeline connection structure as claimed in claim 1, characterized in that: A limiting structure is fixedly arranged between the docking pipe (4) and the docking port (3).

3. A harmful gas collection workbench pipeline connection structure as claimed in claim 2, characterized in that: The limiting structure comprises a limiting shaft section (401) and an annular limiting groove (5) that cooperate with each other, the limiting shaft section (401) is located at the top of the docking pipe (4), and the annular limiting groove (5) is opened on the inner side of the docking port (3).

4. A harmful gas collection workbench pipeline connection structure as claimed in claim 3, characterized in that: The thickness of the limiting shaft section (401) is equal to the depth of the annular limiting groove (5).

5. A harmful gas collection workbench pipeline connection structure as claimed in claim 3, characterized in that: The fastening mechanism comprises a plug-in shaft section (402) and a sleeve (6), and threads are provided between the outer wall of the plug-in shaft section (402) and the inner wall of the sleeve (6).

6. A harmful gas collection workbench pipeline connection structure as claimed in claim 5, characterized in that: The top of the sleeve (6) is provided with a supporting shaft section (7), and the top surface of the supporting shaft section (7) abuts against the bottom of the dust collecting hood (2).

7. A harmful gas collection workbench pipeline connection structure as claimed in claim 5, characterized in that: The docking pipe (4) also has a transition shaft section (403) and a docking shaft section (404), and the plug-in shaft section (402), the transition shaft section (403), and the docking shaft section (404) are connected in sequence.

8. The harmful gas collection workbench pipeline connection structure according to claim 1, characterized in that: The dust collecting hood (2) and the table top (1) are fixedly connected via bolts.

9. A harmful gas collection workbench pipeline connection structure as claimed in claim 1, characterized in that: A partition plate (8) is detachably connected inside the dust collecting cover (2).

10. The harmful gas collection workbench pipeline connection structure according to claim 1, characterized in that: A sealing structure is also fixedly arranged between the dust collecting hood (2) and the table top (1).

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