Flexible laboratory smoke extraction device

Abstract

The utility model relates to the technical field of smoke exhausting devices, in particular to a flexible laboratory smoke exhausting device which comprises a main pipeline, the main pipeline is communicated with a pipeline system of a bag type dust collector, a plurality of mounting boxes are fixedly mounted on the main pipeline, movable pipes are coiled in an S-shaped reciprocating mode in the mounting boxes, the first ends of the movable pipes are fixedly connected to the main pipeline, and hand control valves are mounted at the second ends of the movable pipes. And return pulleys are slidably mounted in the mounting box, each bent part of the movable pipe is provided with one return pulley, a plurality of return springs are mounted in the mounting box, the first ends of the return springs are fixedly connected to the mounting box, and the second ends of the return springs are correspondingly and fixedly connected to the return pulleys. By arranging the gas pipeline capable of extending and automatically retracting, the gas pipeline can be used in a large range through pulling when being used, and retracts when not being used, so that the influence on other experimental operations is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of smoke exhaust devices, and in particular to a flexible laboratory smoke extraction device. Background Art

[0002] When the production is carried out in the workshop, some processes such as welding and grinding will generate a lot of smoke and dust, so a large smoke exhaust system with bag dust collectors as the main component is usually installed in the production workshop. However, when the product is tested in the laboratory in the workshop, a certain amount of smoke and dust may also be generated. When the product experiment or testing station is not fixed, it is inconvenient to use fixed smoke exhaust pipes. Summary of the invention

[0003] In view of the shortcomings of the prior art, the purpose of this application is to provide a flexible laboratory fume extraction device that is easy to use.

[0004] The above application objectives of this application are achieved through the following technical solutions:

[0005] A flexible laboratory fume extraction device, comprising:

[0006] A main pipeline, wherein the main pipeline is connected to a pipeline system of a bag filter;

[0007] An installation box, the installation box is fixedly installed on the main pipeline;

[0008] A movable pipe, the movable pipe is reciprocatingly coiled in an S-shape in the installation box, the first end of the movable pipe is fixedly connected to the main pipeline, and the second end is installed with a manual valve;

[0009] A homing pulley, which is slidably mounted in the mounting box, and each bend of the movable tube is provided with a homing pulley;

[0010] A return spring, wherein a first end of the return spring is fixedly connected to the installation box, and a second end of the return spring is fixedly connected to the return pulley;

[0011] Wherein, the main pipeline is connected with a plurality of the installation boxes and movable pipes.

[0012] Optionally, the installation box is fixedly provided with a pipe outlet, the pipe outlet is open at one end away from the installation box, and the pipe outlet is arranged in a circular ring shape with a circular cross-section at one end away from the installation box.

[0013] Optionally, the installation box is installed with a locking tube, and the movable tube passes through the locking tube.

[0014] Optionally, the locking tube fitting includes a supporting semicircular plate, which is fixedly mounted on one side of the installation box close to the manual valve, and locking columns are slidably mounted on both sides of the supporting semicircular plate, and the ends of the locking columns are fixedly connected to a downward pressing semicircular plate, and the locking columns on both sides pass through the installation box and are fixedly connected to the same connecting plate, and the connecting plate is threadedly connected to a locking piece, and the end of the locking piece can be rotatably pressed against the side of the installation box.

[0015] Optionally, both ends of the supporting semicircular plate and the pressing semicircular plate are provided with round chamfers, and soft rubber pads are installed on the inner sides of the supporting semicircular plate and the pressing semicircular plate.

[0016] Optionally, the movable tube is provided with a positioning section, the positioning section is a shapeable bellows, and the manual valve is installed on the positioning section.

[0017] Optionally, the positioning section is fixedly mounted with a positioning clip.

[0018] Optionally, the compressible length of the return spring is half of the folded length of the movable tube.

[0019] In summary, the present application includes at least one of the following beneficial technical effects:

[0020] By setting up a gas pipeline that can be extended and automatically retracted and connected to a bag dust collector, it can be used in a larger range by pulling when in use and retract when not in use, thus reducing the impact on other experimental operations;

[0021] After the movable tube is pulled out of the installation box, it may be used at any angle. By providing an open outlet with a circular end face, the possibility of the movable tube being bent when pulled, resulting in air path closure, is reduced, which facilitates the use of the movable tube and increases the service life of the movable tube.

[0022] By providing a locking tube piece, the movable tube can be fixed at a current length after being pulled out to any length, so that it is convenient to use it at this position for a longer period of time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0024] Figure 2 It is a schematic diagram of the structure of the lock tube member of an embodiment of the present application.

[0025] Reference numerals: 1, installation box; 11, pipe outlet; 12, pipe locking member; 121, supporting semicircular plate; 122, locking column; 123, pressing semicircular plate; 124, connecting piece; 125, locking member;

[0026] 2. movable pipe; 201. positioning section; 21. manual valve;

[0027] 31. Return pulley; 32. Return spring. DETAILED DESCRIPTION

[0028] The present application is further described in detail below in conjunction with the accompanying drawings.

[0029] See also Figure 1 , is a flexible laboratory smoke extraction device disclosed in an embodiment of the present application, including a main pipeline, the main pipeline is connected to the pipeline system of the bag dust collector, the main pipeline is fixedly installed with multiple installation boxes 1, the installation box 1 has an S-shaped reciprocating disk with a movable tube 2, the first end of the movable tube 2 is fixedly connected to the main pipeline, and the second end is installed with a manual valve 21, a return pulley 31 is slidably installed in the installation box 1, each bend of the movable tube 2 is provided with a return pulley 31, and multiple return springs 32 are installed in the installation box 1, the first end of the return spring 32 is fixedly connected to the installation box 1, and the second end is correspondingly fixedly connected to the return pulley 31.

[0030] Specifically, the movable tube 2 is reciprocated in an S shape in the installation box 1, so that the movable tube 2 can be pulled out through one end of the manual valve 21 to extend the outer part thereof. After use, the return pulley 31 is driven by the return spring 32 to retract into the installation box 1 through the movable tube 2.

[0031] In this way, by setting up a gas pipeline that can be extended and automatically retracted and connecting a bag dust collector, it can be used in a larger range by pulling when in use and retracted when not in use, thereby reducing the impact on other experimental operations.

[0032] In some feasible embodiments, the main pipeline is a pipeline connected to the bag dust collector, and the installation box 1 is fixed under the main pipeline. The installation box 1 is a rectangular box body, and sliding grooves are provided on the inner bottom and top surfaces of the installation box 1. The return pulley 31 includes a wheel portion and a U-shaped plate portion. The wheel portion is rotatably installed in the U-shaped plate portion, and the outer side of the U-shaped plate portion can be slidably embedded in the sliding groove. The sliding groove regulates the moving trajectory of the return pulley 31 to reduce the possibility of the return pulley 31 being partially pulled off balance when pulling. During the pulling process, the S-shaped movable tube 2 as a whole shrinks toward the middle of the installation box 1, and the return spring 32 is set to have a compressible length that is half of the folded length of the movable tube 2, so as to facilitate its shrinkage to the middle of the installation box 1. The manual valve 21 is a manual air valve, and the movable tube 2 is opened and closed.

[0033] As a specific embodiment of a flexible laboratory smoke extraction device provided in the application, the installation box 1 is fixedly installed with a pipe outlet 11, and the pipe outlet 11 is open at one end away from the installation box 1, and the pipe outlet 11 is set to a circular ring shape with a circular cross-section at one end away from the installation box 1.

[0034] Overall,After the movable tube 2 is pulled out of the installation box 1, it may be used at any angle. By providing an open outlet pipe port 11 with a circular ring end face, the possibility of the movable tube 2 being bent when pulled and causing the air path to be closed is reduced, which facilitates the use of the movable tube 2 and increases the service life of the movable tube 2.

[0035] Provided as an application A flexible laboratory fume extraction device Another specific implementation method, The installation box 1 is installed with a locking tube member 12 , and the movable tube 2 passes through the locking tube member 12 .

[0036] In combination with specific usage scenarios, by providing a locking tube member 12, the movable tube 2 can be fixed at a current length after being pulled out to any length, so as to facilitate use at this position for a longer period of time.

[0037] For some possible approaches, see Figure 2 The locking tube member 12 includes a supporting semicircular plate 121, which is fixedly installed on one side of the installation box 1 close to the manual valve 21. Locking columns 122 are slidably installed on both sides of the supporting semicircular plate 121. The ends of the locking columns 122 are fixedly connected to a pressing semicircular plate 123. The locking columns 122 on both sides pass through the installation box 1 and are fixedly connected to the same connecting piece 124. The connecting piece 124 is threadedly connected to a locking member 125. The end of the locking member 125 can be rotatably pressed against the side of the installation box 1. The locking member 125 is rotated to pull the connecting piece 124, thereby pulling the pressing semicircular plate 123 to squeeze the movable tube 2, so that the movable tube 2 remains in position.

[0038] In order to reduce the possibility of damage to the movable tube 2, round chamfers are provided at both ends of the supporting semicircular plate 121 and the pressing semicircular plate 123, and soft rubber pads are installed on the inner sides of the supporting semicircular plate 121 and the pressing semicircular plate 123. At the same time, the soft rubber pads increase the friction between the movable tube 2, making it easier to fix the movable tube 2.

[0039] Provided as an application A flexible laboratory fume extraction device A specific implementation method of The movable pipe 2 is provided with a positioning section 201 , which is a shapeable bellows, and the manual valve 21 is installed on the positioning section 201 .

[0040] It should be understood that by providing the positioning section 201 made of a shapeable bellows material, the shapeable bellows can be shaped after being bent into different shapes, so that the positioning section 201 can be partially bent into a shape suitable for use in different situations.

[0041] Furthermore, a positioning clip is fixedly installed on the positioning section 201.

[0042] The positioning clip facilitates fixing the positioning section 201 at the use position, further facilitating the use of the movable tube 2.

[0043] In some feasible embodiments, the positioning clip may be provided as a commonly used clip, or may be provided as a component such as a suction cup, a magnet, etc. that is convenient for fixing the position.

[0044] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A flexible laboratory fume extraction device, characterized in that: include: A main pipeline, wherein the main pipeline is connected to a pipeline system of a bag filter; An installation box (1), the installation box (1) being fixedly installed on the main pipeline; A movable pipe (2), the movable pipe (2) being reciprocatingly coiled in an S-shape in the installation box (1), the first end of the movable pipe (2) being fixedly connected to the main pipeline, and the second end being provided with a manual valve (21); A homing pulley (31), the homing pulley (31) being slidably mounted in the mounting box (1), and each bending portion of the movable tube (2) being provided with a homing pulley (31); A return spring (32), wherein a first end of the return spring (32) is fixedly connected to the installation box (1), and a second end of the return spring (32) is fixedly connected to the return pulley (31); Wherein, the main pipeline is connected to a plurality of the installation boxes (1) and the movable pipes (2).

2. A flexible laboratory fume extraction device according to claim 1, characterized in that: The installation box (1) is fixedly mounted with a pipe outlet (11), the end of the pipe outlet (11) away from the installation box (1) is open, and the end of the pipe outlet (11) away from the installation box (1) is arranged in a circular ring shape with a circular cross-section.

3. A flexible laboratory fume extraction device according to claim 1, characterized in that: The installation box (1) is installed with a locking tube component (12), and the movable tube (2) passes through the locking tube component (12).

4. A flexible laboratory fume extraction device according to claim 3, characterized in that: The locking tube member (12) comprises a supporting semicircular plate (121), the supporting semicircular plate (121) being fixedly mounted on a side of the installation box (1) close to the manual valve (21), locking columns (122) being slidably mounted on both sides of the supporting semicircular plate (121), the ends of the locking columns (122) being fixedly connected to a pressing semicircular plate (123), the locking columns (122) on both sides passing through the installation box (1) being fixedly connected to a same connecting piece (124), the connecting piece (124) being threadedly connected to a locking piece (125), the ends of the locking piece (125) being rotatably pressed against the side of the installation box (1).

5. A flexible laboratory fume extraction device according to claim 4, characterized in that: Both ends of the supporting semicircular plate (121) and the pressing semicircular plate (123) are provided with round chamfers, and soft rubber pads are installed on the inner sides of the supporting semicircular plate (121) and the pressing semicircular plate (123).

6. A flexible laboratory fume extraction device according to claim 1, characterized in that: The movable tube (2) is provided with a positioning section (201), the positioning section (201) is a shapeable bellows, and the manual valve (21) is installed on the positioning section (201).

7. A flexible laboratory fume extraction device according to claim 6, characterized in that: The positioning section (201) is fixedly mounted with a positioning clip.

8. A flexible laboratory fume extraction device according to claim 1, characterized in that: The compressible length of the return spring (32) is half of the folded length of the movable tube (2).

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