Pharmaceutical waste gas collecting hood

Abstract

The utility model discloses a pharmaceutical waste gas collecting hood which comprises a waste gas collecting mechanism, the waste gas collecting mechanism comprises a gas collecting hood, the outer wall of the bottom of the gas collecting hood is fixedly connected with an iron connecting frame, and the outer wall of the top of the gas collecting hood is fixedly connected with a connecting pipe; the maintenance mechanism comprises a sliding groove formed in the outer wall of the bottom of the iron connecting frame, a magnetic sliding block is slidably connected to the inner wall of the sliding groove, a first connecting rod is fixedly connected to the outer wall of the bottom of the magnetic sliding block, and a connecting spring is fixedly connected to the outer wall of the tail end of the first connecting rod; a second connecting rod is fixedly connected to the tail end of the connecting spring, a supporting rod is fixedly connected to the tail end of the second connecting rod, and a scraping plate is fixedly connected to the outer wall of the circumference of the supporting rod; a limiting mechanism is further included. The problems that an existing pharmaceutical waste gas collecting hood is inconvenient to clean, a cleaning device needs to be additionally prepared, a worker needs to stretch into the gas collecting hood, and the workload is increased are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas collection, in particular to a pharmaceutical waste gas collection hood. Background Art

[0002] The pharmaceutical industry generates large amounts of waste gas containing hazardous substances such as volatile organic compounds (VOCs), particulate matter, sulfur oxides, and nitrogen oxides during production. If these gases are released directly into the atmosphere without treatment, they can cause serious environmental pollution and even affect human health. Therefore, using a gas collection hood can effectively collect these gases for subsequent treatment, thereby reducing environmental pollution.

[0003] After searching, a waste gas collection hood with the publication number CN221184132U is found, including: a waste gas collection component; the waste gas collection component includes an air suction hood; a mobile exhaust component; the mobile exhaust component includes a mounting plate installed above the interior of the air suction hood, a fan connected to the interior of the mounting plate, a mounting block arranged above the fan, a threaded rod passing through the mounting plate and the mounting block, and a connecting plate connected above the threaded rod; and also includes an expansion component.

[0004] Existing pharmaceutical waste gas collection hoods can accumulate dust and impurities after prolonged use. This accumulation of waste gas and dust can clog the hood pipes. Some pharmaceutical waste gases can be toxic or flammable, and if not cleaned promptly, they can cause safety accidents. However, existing pharmaceutical waste gas collection hoods are inconvenient to clean, requiring additional cleaning equipment and requiring workers to reach into the hood, increasing their workload. Therefore, a pharmaceutical waste gas collection hood is needed to address these issues. Utility Model Content

[0005] The purpose of the present utility model is to provide a pharmaceutical waste gas collection hood to solve the problem raised in the above background technology. When the existing pharmaceutical waste gas collection hood is used, dust or impurities may accumulate in the hood after long-term use. The accumulation of waste gas and dust may cause the hood pipe to be blocked. Some pharmaceutical waste gases may be toxic or flammable. If they are not cleaned in time, safety accidents may occur. However, the existing pharmaceutical waste gas collection hood is not convenient to clean, and a cleaning device needs to be prepared separately. The staff needs to reach into the hood, which increases the workload.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model is a pharmaceutical waste gas collecting hood, comprising:

[0008] An exhaust gas collecting mechanism, comprising an exhaust gas collecting hood, wherein an iron connecting frame is fixedly connected to an outer wall of the bottom of the exhaust gas collecting hood, and a connecting pipe is fixedly connected to an outer wall of the top of the exhaust gas collecting hood;

[0009] A maintenance mechanism includes a slide groove opened on the bottom outer wall of the iron connecting frame, a magnetic slider is slidably connected to the inner wall of the slide groove, a first connecting rod is fixedly connected to the bottom outer wall of the magnetic slider, a connecting spring is fixedly connected to the end of the first connecting rod, a second connecting rod is fixedly connected to the end of the connecting spring, a support rod is fixedly connected to the end of the second connecting rod, and a scraper is fixedly connected to the circumferential outer wall of the support rod.

[0010] Furthermore, a sleeve is fixedly connected to the outer wall of the first connecting rod away from the connecting spring, a telescopic rod is slidably connected to the inner wall of the sleeve, and the outer wall of the end of the telescopic rod is fixedly connected to the outer wall of the second connecting rod.

[0011] Furthermore, when the connecting spring is in a relaxed state, the scraper contacts the inner wall of the air collecting hood.

[0012] Furthermore, it also includes a limiting mechanism, which includes a thread provided on the outer wall of the connecting pipe, and the circumferential outer wall of the connecting pipe is threadedly connected to the rotating rack.

[0013] Furthermore, the inner wall of the connecting pipe is slidably connected to a sliding frame, the inner wall of the sliding frame is fixedly connected to a connecting pipe, the inner wall of the sliding frame is symmetrically slidably connected to movable rods, and a first spring is fixedly connected between the two movable rods.

[0014] Furthermore, the connecting pipe has symmetrically provided limiting holes on its circumferential outer wall.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] 1. According to the utility model, after using the gas collecting hood for a long time, the first connecting rod is manually moved to drive the magnetic slider to slide along the slide groove, the first connecting rod drives the connecting spring to move, the connecting spring drives the second connecting rod to move, the second connecting rod drives the support rod for support, the support rod drives the scraper to move, and the scraper scrapes the inner wall of the gas collecting hood. When the first connecting rod moves to the corner of the gas collecting hood, the connecting spring rebounds to move the second connecting rod, the second connecting rod drives the support rod to move, and the support rod drives the scraper to contact the inner wall of the gas collecting hood, so that the scraper can always be in contact with the inner wall of the gas collecting hood, and can fully scrape and clean.

[0017] 2. According to the utility model, when the connecting pipe is inserted into the connecting pipe, the connecting pipe drives the sliding frame to slide in the connecting pipe, the inner wall of the connecting pipe pushes the movable rod, and the movable rod squeezes the first spring. When the connecting pipe drives the sliding frame to slide in the connecting pipe to the limit hole, the first spring rebounds to make the movable rod extend out of the limit hole, thereby realizing the connection between the connecting pipe and the connecting pipe. When a rotational force is applied to the rotating frame, the movable rod can be limited by the resistance force formed by the inner wall of the rotating frame and the outer end of the movable rod after the downward movement, thereby ensuring further fixation of the connection between the connecting pipe and the connecting pipe. When disassembling, a reverse force is applied to facilitate disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0020] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0021] Figure 3 It is a cross-sectional view of the overall structure of the utility model.

[0022] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0023] 101. Gas collecting hood; 102. Iron connecting frame; 103. Connecting pipe; 201. Slide; 202. Magnetic slider; 203. First connecting rod; 204. Connecting spring; 205. Second connecting rod; 206. Support rod; 207. Scraper; 208. Sleeve; 209. Telescopic rod; 301. Rotating frame; 302. Connecting pipe; 303. Sliding frame; 304. Movable rod; 305. First spring. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0027] See also Figure 1-3 As shown, this embodiment is a pharmaceutical waste gas collection hood, comprising:

[0028] The exhaust gas collecting mechanism includes an exhaust gas collecting cover 101, an iron connecting frame 102 is fixedly connected to the bottom outer wall of the exhaust gas collecting cover 101, and a connecting pipe 103 is fixedly connected to the top outer wall of the exhaust gas collecting cover 101;

[0029] The exhaust gas is collected by the gas collecting hood 101, transported by the connecting pipe 103, and the gas collecting hood 101 is easily installed by the iron connecting frame 102;

[0030] The maintenance mechanism includes a chute 201 provided on the outer wall of the bottom of the iron connecting frame 102. The inner wall of the chute 201 is slidably connected to a magnetic slider 202. The outer wall of the bottom of the magnetic slider 202 is fixedly connected to a first connecting rod 203. The outer wall of the end of the first connecting rod 203 is fixedly connected to a connecting spring 204. The end of the connecting spring 204 is fixedly connected to a second connecting rod 205. The end of the second connecting rod 205 is fixedly connected to a support rod 206. The outer wall of the circumference of the support rod 206 is fixedly connected to a scraper 207.

[0031] The magnetic slider 202 is adsorbed by the chute 201, and the first connecting rod 203 is supported by the magnetic slider 202. The second connecting rod 205 is moved by the connecting spring 204. The scraper 207 is driven by the second connecting rod 205 to contact the inner wall of the gas collecting hood 101. The scraper 207 is supported by the support rod 206. The first connecting rod 203 is manually moved to make the magnetic slider 202 slide in the chute 201, driving the scraper 207 to clean the inner wall of the gas collecting hood 101.

[0032] A sleeve 208 is fixedly connected to the outer wall of the first connecting rod 203 away from the connecting spring 204. A telescopic rod 209 is slidably connected to the inner wall of the sleeve 208. The outer wall of the end of the telescopic rod 209 is fixedly connected to the outer wall of the second connecting rod 205.

[0033] The telescopic rod 209 is supported by the sleeve 208. The telescopic rod 209 is extended and retracted in the sleeve 208 to accommodate the movement of the second connecting rod 205. The second connecting rod 205 is supported by the telescopic rod 209 and the sleeve 208.

[0034] When the connecting spring 204 is in a relaxed state, the scraper 207 is in close contact with the inner wall of the air collecting hood 101 .

[0035] Working principle:

[0036] After using the air collecting hood 101 for a long time, manually move the first connecting rod 203, thereby driving the magnetic slider 202 to slide along the slide groove 201, and the first connecting rod 203 drives the connecting spring 204 to move, and the connecting spring 204 drives the second connecting rod 205 to move, and the second connecting rod 205 drives the support rod 206 for support, and the support rod 206 drives the scraper 207 to move, and the scraper 207 scrapes the inner wall of the air collecting hood 101. When the first connecting rod 203 moves to the corner of the air collecting hood 101, the connecting spring 204 rebounds to move the second connecting rod 205, and the second connecting rod 205 drives the support rod 206 to move, and the support rod 206 drives the scraper 207 to contact the inner wall of the air collecting hood 101.

[0037] This step can ensure that the scraper 207 is always in contact with the inner wall of the air collecting hood 101, and can fully scrape and clean it.

[0038] See also Figure 1-3 This embodiment is based on the above embodiment and further includes:

[0039] The limiting mechanism includes a thread formed on the outer wall of the connecting tube 103 , and the outer wall of the connecting tube 103 is threadedly connected to the rotating frame 301 ;

[0040] The rotating frame 301 is rotated to make the rotating frame 301 move linearly along the thread;

[0041] The inner wall of the connecting pipe 103 is slidably connected to a sliding frame 303, the inner wall of the sliding frame 303 is fixedly connected to the connecting pipe 302, the inner wall of the sliding frame 303 is symmetrically slidably connected to movable rods 304, and a first spring 305 is fixedly connected between the two movable rods 304;

[0042] The connecting pipe 302 is supported by the sliding frame 303, and the movable rod 304 is driven to approach the limiting hole by the sliding frame 303;

[0043] The outer wall of the connecting pipe 103 is symmetrically provided with limiting holes;

[0044] The limiting hole meets the requirements of the movable rod 304 for entering and exiting, and is used for disassembly and assembly between the connecting pipe 103 and the connecting pipe 302.

[0045] Working principle:

[0046] When installing the connecting pipe 302, a force is applied inwards to the movable rods 304 extending from the lower parts of both sides of the connecting pipe 302 in advance, which acts on the first spring 305 to compress it and link the movable rods 304 that were originally extended to move toward the inside of the connecting pipe 302. At this time, the connecting pipe 302 together with the movable rods 304 can be smoothly placed into the interior of the connecting pipe 103, and then a force is applied inwards to make the connecting pipe 302 move downwards inside the connecting pipe 103 and release it when it moves to the position of the limit hole passing through the lower part of the connecting pipe 103. After the force is applied, the first spring 305 recovers its deformation and applies a reverse force to the movable rod 304, so that the movable rod 304 extends outward from the inside of the limiting hole, that is, extends out of the connecting pipe 103, and then connects the connecting pipe 302 and the connecting pipe 103. Then, by spirally rotating the rotating frame 301, the rotating frame 301 moves downward in a straight line, and relies on the inner wall of the rotating frame 301 to conflict with the outer end of the extended movable rod 304, further ensuring the stability of the connection between the connecting pipe 103 and the connecting pipe 302. When disassembling, just apply the reverse steps.

[0047] This step can facilitate the disassembly and assembly of the connecting pipe 302.

[0048] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0049] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A pharmaceutical waste gas collection hood, characterized in that: include: An exhaust gas collecting mechanism, the exhaust gas collecting mechanism comprising an exhaust gas collecting hood (101), an iron connecting frame (102) being fixedly connected to an outer wall at the bottom of the exhaust gas collecting hood (101), and a connecting pipe (103) being fixedly connected to an outer wall at the top of the exhaust gas collecting hood (101); A maintenance mechanism, the maintenance mechanism comprising a slide groove (201) provided on the bottom outer wall of the iron connecting frame (102), the inner wall of the slide groove (201) being slidably connected to a magnetic slider (202), the bottom outer wall of the magnetic slider (202) being fixedly connected to a first connecting rod (203), the outer wall of the end of the first connecting rod (203) being fixedly connected to a connecting spring (204), the end of the connecting spring (204) being fixedly connected to a second connecting rod (205), the end of the second connecting rod (205) being fixedly connected to a support rod (206), and the circumferential outer wall of the support rod (206) being fixedly connected to a scraper (207).

2. The pharmaceutical waste gas collecting hood according to claim 1, characterized in that: A sleeve (208) is fixedly connected to the outer wall of the first connecting rod (203) at a side away from the connecting spring (204), a telescopic rod (209) is slidably connected to the inner wall of the sleeve (208), and the outer wall of the end of the telescopic rod (209) is fixedly connected to the outer wall of the second connecting rod (205).

3. The pharmaceutical waste gas collecting hood according to claim 2, characterized in that: When the connecting spring (204) is in a relaxed state, the scraper (207) contacts the inner wall of the gas collecting hood (101).

4. The pharmaceutical waste gas collecting hood according to claim 3, characterized in that: It also includes a limiting mechanism, the limiting mechanism including a thread provided on the outer wall of the connecting tube (103), and the circumferential outer wall of the connecting tube (103) is threadedly connected to the rotating frame (301).

5. The pharmaceutical waste gas collecting hood according to claim 4, characterized in that: The inner wall of the connecting tube (103) is slidably connected to a sliding frame (303), the inner wall of the sliding frame (303) is fixedly connected to a connecting tube (302), the inner wall of the sliding frame (303) is symmetrically slidably connected to movable rods (304), and a first spring (305) is fixedly connected between the two movable rods (304).

6. The pharmaceutical waste gas collecting hood according to claim 5, characterized in that: The connecting pipe (103) is symmetrically provided with limiting holes on its circumferential outer wall.

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