Environmentally friendly universal exhaust hood

Abstract

The utility model provides an environmentally friendly universal exhaust hood, including a shell, a slide groove is provided on the top of the shell, a transmission screw is rotatably connected inside the slide groove, a support rod is provided on the top of the shell, a matching hole is provided on the bottom of the support rod, the matching hole cooperates with the transmission screw, and a connecting rod is rotatably connected to the top of the support rod. The utility model exhausts the experimental waste gas into the filter layer through the first vacuum pump provided, and after the filter layer filters and absorbs harmful substances in the waste gas, the second vacuum pump is used to exhaust the filtered gas directly to the outside, thereby achieving the effect of energy saving and emission reduction; the environmentally friendly universal exhaust hood is used to exhaust the laboratory. For the situation that a single laboratory needs to exhaust the experiment, the environmentally friendly universal ventilation hood can save most of the cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of exhaust hoods, and in particular relates to an environmentally friendly universal exhaust hood. Background Art

[0002] At present, with the development of science and technology and the increase of laboratory instruments, waste gas after laboratory experiments and other gases that are harmful to the human body pose a safety hazard to experimenters in the laboratory. Once the laboratory waste gas and other gases are inhaled into the human body, they will damage human organs. At present, the main exhaust device for laboratory waste gas treatment in research institutes, universities and other laboratories is to place a ventilation system on the roof for exhaust and build a ventilation tower on the roof. The cost of such an arrangement is too high, and the energy consumption of the ventilation tower is too large in long-term operation. Utility Model Content

[0003] Purpose of the utility model

[0004] In view of the above technical problems, the utility model provides an environmentally friendly universal exhaust hood to solve the technical problems mentioned in the background technology.

[0005] Technical Solution

[0006] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is an environmentally friendly universal exhaust hood, including a shell, a slide groove is opened on the top of the shell, a transmission screw is rotatably connected inside the slide groove, a support rod is arranged on the top of the shell, a matching hole is opened at the bottom of the support rod, the matching hole and the transmission screw are matched with each other, a connecting rod is rotatably connected to the top of the support rod, the connecting rod and the support rod are connected by a universal joint, and an adjustment rod is rotatably connected to one end of the connecting rod.

[0007] Preferably, the outer wall of the shell is rotatably connected with a mounting structure, the number of the mounting structures is set to be multiple, and the multiple mounting structures are symmetrically distributed on both sides of the horizontal center line of the shell.

[0008] Preferably, the mounting structure includes a rotating shaft, which is rotatably connected to the outer wall of the shell, a fixing plate is provided at the bottom of the rotating shaft, an adjustment groove is opened at one end of the fixing plate, a rotating ball is rotatably connected inside the adjustment groove, and a fixing bolt is provided inside the rotating ball.

[0009] Preferably, a clamping strip is provided inside the shell, and a bonding layer is provided between the clamping strip and the shell.

[0010] Preferably, a connecting pipe is provided on the top of the shell, one end of which is provided with an air pump, and one end of the air pump is provided with a filter layer.

[0011] Preferably, the number of the connecting pipes is set to two, and the two connecting pipes are symmetrically distributed on both sides of the horizontal center line of the shell.

[0012] Beneficial Effects

[0013] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0014] The utility model exhausts the experimental waste gas into the filter layer through the first vacuum pump set up. After the harmful substances in the waste gas are filtered and adsorbed by the filter layer, the second vacuum pump is used for exhaust, and the filtered gas is directly discharged to the outside, thereby achieving the effect of energy saving and emission reduction. The environmentally friendly universal exhaust hood is used to exhaust the laboratory. For the situation where a single laboratory needs to perform experimental exhaust, the environmentally friendly universal ventilation hood can save most of the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a three-dimensional cross-sectional view of the utility model;

[0017] Figure 3 It is a cross-sectional view of the installation structure of the utility model;

[0018] Figure 4 For the utility model Figure 2 A partial enlarged view of point A in the middle.

[0019] Reference numerals

[0020] 1. Shell; 2. Mounting structure; 201. Rotating shaft; 202. Fixing plate; 203. Adjusting slot; 204. Rotating ball; 205. Fixing bolt; 3. Clip strip; 4. Laminating layer; 5. Slide groove; 6. Transmission screw; 7. Support rod; 8. Matching hole; 9. Connecting rod; 10. Adjusting rod; 11. Connecting pipe; 12. Vacuum pump; 13. Filter layer. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", "coaxial", "bottom", "one end", "top", "the other end", "one side", "front", "two ends", "both sides" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Reference is now made to the accompanying drawings, in which the purpose of each illustration is only to show certain exemplary embodiments, and is not intended to limit the present invention. In each of the drawings, the same reference numerals represent the same or corresponding parts. The dimensions and proportions in each of the drawings are also only for illustration and should not be interpreted as limiting the present invention. These dimensions may be enlarged relative to the actual product.

[0025] Reference Figure 1-Figure 4 An environmentally friendly universal exhaust hood as shown includes a shell 1, a slide groove 5 is opened on the top of the shell 1, and a transmission screw 6 is rotatably connected inside the slide groove 5. A support rod 7 is arranged on the top of the shell 1, and a matching hole 8 is opened at the bottom of the support rod 7. The matching hole 8 cooperates with the transmission screw 6. A connecting rod 9 is rotatably connected to the top of the support rod 7. The connecting rod 9 is connected to the support rod 7 through a universal joint, and an adjusting rod 10 is rotatably connected to one end of the connecting rod 9.

[0026] Furthermore, in the above technical solution, the outer wall of the shell 1 is rotatably connected to a mounting structure 2, the number of the mounting structures 2 is set to be multiple, and the multiple mounting structures 2 are symmetrically distributed on both sides of the horizontal center line of the shell 1, and the mounting structure 2 includes a rotating shaft 201, and the rotating shaft 201 is rotatably connected to the outer wall of the shell 1, and a fixing plate 202 is provided at the bottom of the rotating shaft 201, and an adjustment groove 203 is opened at one end of the fixing plate 202, and a rotating ball 204 is rotatably connected inside the adjusting groove 203, and a fixing bolt 205 is provided inside the rotating ball 204. By rotating the rotating shaft 201 and the rotating ball 204, the angle of the fixing bolt 205 can be adjusted, so that the fixing bolt 205 can be changed to different positions, so that the shell 1 can be fixed on the top or inside of the test bench, and the fixing of the shell 1 at different positions is realized, which is convenient for adsorption of experimental exhaust gas.

[0027] Furthermore, in the above technical solution, a clamping strip 3 is provided inside the shell 1, and a bonding layer 4 is provided between the clamping strip 3 and the shell 1. The bonding layer 4 is a disposable item, and impurities in the experimental exhaust gas adhere to the inner wall of the bonding layer 4 to prevent the impurities in the experimental exhaust gas from directly contacting the inner wall of the shell 1.

[0028] Furthermore, in the above technical solution, a connecting pipe 11 is provided on the top of the shell 1, and an air pump 12 is provided at one end thereof, and a filter layer 13 is provided at one end of the air pump 12. The number of the connecting pipes 11 is set to two, and the two connecting pipes 11 are symmetrically distributed on both sides of the horizontal center line of the shell 1. The air pump 12 can be provided at both ends of the filter layer 13, one air pump 12 is used to extract the experimental exhaust gas inside the shell 1, and the other air pump 12 is used to extract the experimental exhaust gas that enters the filter layer 13 for filtration. The inside of the filter layer 13 may be activated carbon or other filter materials.

[0029] How this utility works:

[0030] Refer to the instruction manual Figure 1-Figure 4 First, when it is necessary to extract the experimental exhaust gas through the exhaust hood, start the first exhaust pump 12, and the exhaust pump 12 draws the experimental exhaust gas in the shell 1 into the interior of the connecting pipe 11 through the connecting pipe 11 and discharges it into the exhaust pump 12, and the exhaust pump 12 filters the experimental exhaust gas, and then the second exhaust pump 12 discharges the experimental exhaust gas that has entered the filtering layer 13 and filtered it;

[0031] At the same time, the angle of the shell 1 can be rotated in multiple directions by connecting the universal joint between the support rod 7 and the connecting rod 9, and the angle of the fixing bolt 205 can be adjusted by rotating the fixing plate 202 and the rotating ball 204, so that the fixing bolt 205 can fix the shell 1 to different positions of the test bench.

[0032] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

Claims

1. Environmentally friendly universal exhaust hood, characterized by: include A housing (1), wherein a slide groove (5) is provided at the top of the housing (1), a transmission screw (6) is rotatably connected inside the slide groove (5), a support rod (7) is provided at the top of the housing (1), a matching hole (8) is provided at the bottom of the support rod (7), the matching hole (8) and the transmission screw (6) are matched with each other, a connecting rod (9) is rotatably connected at the top of the support rod (7), the connecting rod (9) is connected to the support rod (7) through a universal joint, and one end of the connecting rod (9) is rotatably connected to an adjustment rod (10).

2. The environmentally friendly universal exhaust hood according to claim 1, characterized in that: The outer wall of the shell (1) is rotatably connected to a mounting structure (2), the number of the mounting structures (2) is set to be multiple, and the multiple mounting structures (2) are symmetrically distributed on both sides of the horizontal center line of the shell (1).

3. The environmentally friendly universal exhaust hood according to claim 2, characterized in that: The mounting structure (2) comprises a rotating shaft (201), the rotating shaft (201) being rotatably connected to the outer wall of the housing (1), a fixing plate (202) being provided at the bottom of the rotating shaft (201), an adjustment groove (203) being provided at one end of the fixing plate (202), a rotating ball (204) being rotatably connected inside the adjusting groove (203), and a fixing bolt (205) being provided inside the rotating ball (204).

4. The environmentally friendly universal exhaust hood according to claim 1, characterized in that: A clamping strip (3) is arranged inside the shell (1), and a bonding layer (4) is arranged between the clamping strip (3) and the shell (1).

5. The environmentally friendly universal exhaust hood according to claim 1, characterized in that: A connecting pipe (11) is arranged at the top of the shell (1), one end of which is provided with an air pump (12), and one end of the air pump (12) is provided with a filter layer (13).

6. The environmentally friendly universal exhaust hood according to claim 5, characterized in that: The number of the connecting pipes (11) is set to two, and the two connecting pipes (11) are symmetrically distributed on both sides of the horizontal center line of the shell (1).

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