Efficient air draft device

Abstract

The utility model is suitable for the technical field of air draft devices, and provides an efficient air draft device which comprises an absorption cover with a rectangular section, a plurality of air draft holes are evenly and transversely formed in the upper portions of the surfaces of the two sides of the absorption cover at intervals in the length direction of the absorption cover in a penetrating mode, and the lower portions of the surfaces of the two sides of the absorption cover are shrunk inwards to form protection grooves. According to the efficient air draft device, the absorption covers are arranged, the absorption covers of the device are erected on the two sides of the top end of the workshop tank body, poisonous and harmful gas emitted from the tank body can be absorbed by the absorption covers of the device, a plurality of air draft holes are transversely formed in the upper portions of the surfaces of the two sides of each absorption cover in a penetrating mode, and the positions of the air draft holes are formed in the upper portions. According to the device, harmful gas can be effectively absorbed, the lower portions of the two sides of the absorption cover of the device are both shrunk inwards to form the protection grooves, the conductive copper bars are installed in the protection grooves so that the conductive copper bars can be effectively prevented from making contact with dripping solutions, and the good protection effect is achieved on the conductive copper bars.

Description

Technical Field

[0001] The utility model belongs to the technical field of air exhaust devices, in particular to a high-efficiency air exhaust device. Background Art

[0002] In the workshop, general exhaust gas, high temperature or light density, floats upward, but the air inlet height of the ordinary exhaust hood is not enough, which makes it difficult to extract the exhaust gas pollution source, making the air inside the workshop turbid and affecting the normal work of the staff; at the same time, the conductive copper busbar or copper tube is often directly installed on both sides of the exhaust hood, and the upper solution may drip directly on the conductive copper busbar or copper tube, causing abnormal conditions such as surface oxidation, corrosion, and poor conductivity. Utility Model Content

[0003] The utility model provides a high-efficiency exhaust device, aiming to solve the problem that the air inlet height of a general exhaust hood is not enough, it is difficult to completely extract the exhaust gas, and the conductive copper busbar cannot be protected.

[0004] The utility model is implemented as follows: a high-efficiency air exhaust device comprises an absorption cover with a rectangular cross-section, wherein the upper parts of the two side surfaces of the absorption cover are uniformly spaced and laterally penetrated with a plurality of air exhaust holes along the length direction thereof, and the lower parts of the two side surfaces of the absorption cover are inwardly contracted to form protection grooves, and the interiors of the two protection grooves are both provided with conductive copper bars along the length direction thereof.

[0005] Preferably, the top end of the absorption cover is fixedly connected with an inclined top plate along its length direction.

[0006] Preferably, the rear end of the absorption hood is connected to an air supply pipe, the rear end of the air supply pipe is detachably mounted with a connecting pipe, the rear end of the connecting pipe is provided with an air valve, the front end of the air valve is connected to the rear end of the connecting pipe, and the rear end of the air valve is connected with an elbow.

[0007] Preferably, a filtering structure is detachably installed inside the connecting pipe.

[0008] Preferably, the filtering structure includes a connecting ring, a filter net is fixedly connected to the inside of the connecting ring, an outer magnetic ring is fixedly connected to the outer ring surface of the connecting ring, an inner magnetic ring that is attracted to the outer magnetic ring is fixedly connected to the inner surface of the connecting tube, and the filtering structure is detachably mounted on the inside of the connecting tube via the outer magnetic ring.

[0009] Beneficial Effects

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: an efficient exhaust device of the utility model is provided with an absorption hood, which is mounted on both sides of the top of the workshop trough body, so that toxic and harmful gases emitted from the trough body can be absorbed by the absorption hood of the device, and multiple exhaust holes are horizontally penetrated on the upper part of the surface of both sides of the absorption hood, which are arranged relatively upward and can effectively absorb harmful gases, and the lower parts of both sides of the absorption hood of the device are contracted inward to form a protective groove, and the conductive copper busbar is installed inside the protective groove to effectively avoid its contact with the dripping solution, thereby playing a good protective role. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a schematic diagram of the cross-sectional structure of the absorption cover in the utility model;

[0013] Figure 3 It is a schematic diagram of the connection structure between the connecting pipe and the air supply pipe in the utility model.

[0014] In the figure: 1-absorption cover, 2-protection groove, 3-conductive copper busbar, 4-external magnetic ring, 5-inclined top plate, 6-air supply pipe, 7-exhaust hole, 8-connecting pipe, 9-air valve, 10-elbow, 11-inner magnetic ring, 12 connecting ring, 13-filter screen. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0016] See also Figure 1-3 The utility model provides a technical solution: an efficient air extraction device, comprising an absorption cover 1 with a rectangular cross-section, the upper part of the two side surfaces of the absorption cover 1 is uniformly spaced along its length direction and is laterally penetrated with a plurality of air extraction holes 7, the lower part of the two side surfaces of the absorption cover 1 is inwardly contracted to form a protective groove 2, and the inside of the two protective grooves 2 is provided with a conductive copper bus 3 along its length direction.

[0017] In this embodiment, the absorption cover 1 of the device is set up on both sides of the top of the workshop trough body, and the toxic and harmful gases emitted from the trough body can be absorbed by the absorption cover 1 of the device. The upper part of the surface of both sides of the absorption cover 1 is transversely penetrated with a plurality of exhaust holes 7, which are arranged at a relatively upper position and can effectively absorb the harmful gases. The lower parts of both sides of the absorption cover 1 of the device are contracted inward to form a protective groove 2. The conductive copper bus 3 is installed inside the protective groove 2 to effectively prevent it from contacting with the dripping solution, thereby playing a good protective role.

[0018] Furthermore, a slanted top plate 5 is fixedly connected to the top of the absorption cover 1 along its length direction.

[0019] In this embodiment, the inclined top plate 5 is arranged along the length direction of the absorption cover 1, which can protect the absorption cover 1 and prevent it from being corroded by the dripping solution.

[0020] Furthermore, the rear end of the absorption hood 1 is connected to the air supply pipe 6, the rear end of the air supply pipe 6 is detachably installed with a connecting pipe 8, the rear end of the connecting pipe 8 is provided with an air valve 9, the front end of the air valve 9 is connected to the rear end of the connecting pipe 8, and the rear end of the air valve 9 is connected to an elbow 10.

[0021] In this embodiment, the other end of the elbow 10 is connected to an exhaust pipe, and an air pump is provided at the other end of the exhaust pipe. The air pump drives the gas flow so that the inside of the device is in a negative pressure state, thereby enabling the device to absorb gas.

[0022] The air supply pipe 6 and the connecting pipe 8 are connected by welding or gluing to ensure the sealing performance between the two.

[0023] Furthermore, a filtering structure is detachably installed inside the connecting pipe 8 .

[0024] The filtering structure includes a connecting ring 12, a filter screen 13 is fixedly connected to the inside of the connecting ring 12, an outer ring surface of the connecting ring 12 is fixedly connected to an outer magnetic ring 4, and an inner surface of the connecting pipe 8 is fixedly connected to an inner magnetic ring 11 that attracts the outer magnetic ring 4. The filtering structure is detachably installed inside the connecting pipe 8 through the outer magnetic ring 4.

[0025] In this embodiment, the filter mesh 13 in the filter structure can filter and block solid particles in the air, preventing them from directly entering the air pump at the rear end along the internal channel of the device, causing damage to the inside of the air pump and affecting the normal use of the air pump. In addition, the filter structure of the device can be quickly disassembled and installed at any time because it is connected by magnetic force, thereby improving the convenience of the device.

[0026] The working principle and use process of the utility model: After the utility model is installed, the absorption cover 1 of the device is set on both sides of the top of the workshop trough body, and the toxic and harmful gases emitted from the trough body can be absorbed by the absorption cover 1 of the device. The upper part of the surface of both sides of the absorption cover 1 is transversely penetrated with a plurality of exhaust holes 7, which are arranged at a relatively upper position and can effectively absorb the harmful gas, and the lower parts of both sides of the absorption cover 1 of the device are contracted inward to form a protective groove 2, and the conductive copper bus 3 is installed inside the protective groove 2 to effectively avoid its contact with the dripping solution, thereby playing a good protective role.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-efficiency exhaust device, characterized in that: The invention comprises an absorption cover (1) with a rectangular cross section, wherein the upper parts of both side surfaces of the absorption cover (1) are provided with a plurality of exhaust holes (7) which are evenly spaced and transversely penetrated along the length direction thereof, and the lower parts of both side surfaces of the absorption cover (1) are inwardly contracted to form protection grooves (2), and conductive copper bars (3) are provided inside the two protection grooves (2) along the length direction thereof.

2. A high-efficiency exhaust device as claimed in claim 1, characterized in that: The top end of the absorption cover (1) is fixedly connected to an inclined top plate (5) along its length direction.

3. A high-efficiency exhaust device as claimed in claim 1, characterized in that: The rear end of the absorption cover (1) is connected to an air supply pipe (6), the rear end of the air supply pipe (6) is detachably mounted with a connecting pipe (8), the rear end of the connecting pipe (8) is provided with an air valve (9), the front end of the air valve (9) is connected to the rear end of the connecting pipe (8), and the rear end of the air valve (9) is connected to an elbow (10).

4. A high-efficiency exhaust device as claimed in claim 3, characterized in that: A filtering structure is detachably installed inside the connecting pipe (8).

5. A high-efficiency air extraction device as claimed in claim 4, characterized in that: The filtering structure comprises a connecting ring (12), a filtering screen (13) is fixedly connected inside the connecting ring (12), an outer ring surface of the connecting ring (12) is fixedly connected to an outer magnetic ring (4), an inner surface of the connecting pipe (8) is fixedly connected to an inner magnetic ring (11) that attracts the outer magnetic ring (4), and the filtering structure is detachably mounted inside the connecting pipe (8) via the outer magnetic ring (4).

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