Improved ventilation cabinet

Abstract

The utility model discloses an improved ventilation cabinet, and relates to the technical field of experimental equipment. The cabinet comprises a floor cabinet body and a top cabinet body, the top cabinet body is assembled on the upper surface of the floor cabinet body, a faucet assembly is detachably installed on the side wall of the top cabinet body, a ventilation pipeline is assembled at the top end of the top cabinet body, an installation assembly is arranged on the side wall of the top cabinet body, and a fixing assembly is arranged on the ventilation pipeline. The mounting assembly comprises a mounting sleeve, a mounting groove is formed in the side wall of the top cabinet, the mounting sleeve is in movable contact with the inner wall of the mounting groove, a penetrating hole is formed in the upper surface of the mounting sleeve, and the faucet assembly penetrates through the penetrating hole and is fixed to the mounting sleeve; according to the utility model, the faucet assembly is arranged on the side wall of the top cabinet, and a detector opens the glass sealing door and stretches out a hand to receive water for use, so that the water receiving convenience is improved; through the arrangement of the installation assembly, the overhaul cover plate can be independently opened, the faucet assembly is disassembled at the opening of the installation sleeve, and the convenience of overhaul and maintenance of the faucet assembly is improved.

Description

Technical Field

[0001] This utility model relates to the field of experimental equipment technology, specifically an improved fume hood. Background Technology

[0002] A fume hood, also known as a laboratory fume hood, is a device used for exhaust ventilation in laboratories. It is one of the most common pieces of equipment in laboratories, and its most important function is exhaust ventilation. In chemical laboratories, various harmful gases, odors, moisture, as well as flammable, explosive, and corrosive substances are generated during experiments. In order to protect the safety of users and prevent pollutants from spreading into the laboratory, fume hoods should be used near the source of pollution.

[0003] However, existing fume hoods still have some drawbacks:

[0004] In order to make full use of space and not affect operation, most existing fume hoods place the sink and faucet in the corner. However, in actual use, the testing personnel often need to enter the fume hood with their upper body to use the sink and faucet, which is very inconvenient and often leads to safety risks. They may simply abandon the fume hood, making the sink and faucet useless. At the same time, the easy disassembly of the faucet makes the inspection and maintenance of the faucet inconvenient.

[0005] In existing fume hoods, the connection and assembly process between the upper ventilation duct and the air duct at the top of the laboratory is cumbersome, resulting in inconvenient installation of the air duct and ventilation system, and also leading to high labor intensity for the workers. Utility Model Content

[0006] In order to solve the above problems, the purpose of this utility model is to provide an improved fume hood.

[0007] To solve the above technical problems, the present invention adopts the following technical solution: an improved fume hood, including a base cabinet and a top cabinet, wherein the top cabinet is assembled on the upper surface of the base cabinet, a faucet assembly is detachably installed on the side wall of the top cabinet, a ventilation duct is assembled on the top of the top cabinet, an installation component is provided on the side wall of the top cabinet, and a fixing component is provided on the ventilation duct;

[0008] The installation assembly includes an installation sleeve, the side wall of the top cabinet has an installation groove, the installation sleeve and the inner wall of the installation groove are in contact, the upper surface of the installation sleeve has an insertion hole, the faucet assembly passes through the insertion hole and is fixed on the installation sleeve, and the side of the base cabinet near the faucet assembly has a pipe hole, the pipe hole and the insertion hole are vertically aligned.

[0009] A maintenance cover is hinged to one side of the mounting sleeve. A movable groove is provided on one side of the mounting sleeve. A limiting seat is slidably provided inside the movable groove. One side of the limiting seat is in movable contact with one side of the maintenance cover. A limiting strip is fixedly provided on one side of the mounting sleeve. The other side of the maintenance cover is in movable contact with one side of the limiting strip.

[0010] A spring rod is fixedly installed on the top wall of the movable groove, and the telescopic end of the spring rod is fixedly connected to one end of the limiting seat.

[0011] Preferably, a glass-sealed door is slidably installed on one side of the top cabinet, and a water sink is installed on the side of the base cabinet near the faucet assembly.

[0012] Preferably, four evenly distributed lugs are fixedly provided on one side of the mounting sleeve, and mounting bolts are threadedly mounted on each of the four lugs. Two hidden grooves are opened on both sides of the mounting groove, and threaded holes are opened on the inner walls of the four hidden grooves. One end of the mounting bolt is threadedly connected to the inner wall of the threaded hole.

[0013] Preferably, sliders are fixedly provided on both sides of the inspection cover, and the two sliders are slidably disposed on the side wall of the movable groove.

[0014] Preferably, two hand-operated grooves are provided on one side of the inspection cover.

[0015] Preferably, the fixing assembly includes two clamping plates, both of which are made of elastic material and have a semi-circular structure. One end of the ventilation duct has a circular groove, and the two clamping plates are in movable contact with the inner wall of the circular groove. Both ends of the two clamping plates are fixedly provided with ear plates, and a locking screw is threadedly installed between two adjacent ear plates. Both ends of the two locking screws are threaded with nuts.

[0016] Preferably, anti-slip pads are fixedly provided on opposite sides of both clamping plates.

[0017] Preferably, a sealing ring is fixedly provided at one end of the ventilation duct.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. In this utility model, by installing the faucet assembly on the side wall of the top cabinet, the testing personnel can reach out and use the water after opening the glass sealing door, thus improving the convenience of water access.

[0020] 2. In this utility model, the inspection cover can be opened separately through the installation components, and the faucet assembly can be disassembled through the opening of the installation sleeve, thereby improving the convenience of inspection and maintenance of the faucet assembly.

[0021] 3. In this utility model, by setting a fixing component, when the corrugated air duct at the top of the laboratory is fitted onto the upper end of the ventilation duct, it is fixed in the circular groove by two clamping plates, which can lock the end of the corrugated air duct and fix the corrugated air duct on the ventilation duct. This conveniently realizes the fixed installation of the corrugated air duct and the ventilation duct, thereby effectively improving the convenience of the installation of the corrugated air duct and the ventilation duct and reducing the assembly work intensity of the operators. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of an improved fume hood according to the present invention.

[0024] Figure 2 This is a schematic diagram of the glass sealing door of this utility model in its open state.

[0025] Figure 3 This is a schematic diagram of the separation structure of the mounting sleeve and faucet assembly from the top cabinet of this utility model.

[0026] Figure 4 This utility model Figure 3 Enlarged schematic diagram of part A in the diagram.

[0027] Figure 5 This is a schematic diagram of the connection structure between the faucet assembly and the mounting sleeve of this utility model.

[0028] Figure 6 This is a cross-sectional structural diagram of the mounting sleeve of this utility model.

[0029] Figure 7 This utility model Figure 6 Enlarged schematic diagram of part B in the diagram.

[0030] Figure 8 This is a cross-section of the mounting sleeve of this utility model and a schematic diagram of the separation structure between the faucet assembly and the mounting sleeve.

[0031] Figure 9 This is an exploded structural diagram of the fixing component of this utility model.

[0032] In the diagram: 1. Base cabinet; 2. Top cabinet; 21. Glass sealing door; 22. Faucet assembly; 223. Faucet body; 221. Upper fixing seat; 222. Threaded sleeve; 23. Sink; 24. Ventilation duct; 3. Mounting components; 31. Mounting sleeve; 32. Mounting groove; 33. Ear block; 34. Mounting bolt; 35. Concealed groove; 36. Threaded hole; 37. Through hole; 38. Pipe hole; 39. Inspection cover plate; 4. Movable groove; 41. Limit seat; 411. Limit strip; 42. Slider; 43. Spring rod; 44. Hand pull groove; 5. Fixing components; 51. Pressure plate; 52. Circular groove; 53. Anti-slip pad; 54. Ear plate; 55. Locking screw; 56. Nut; 57. Sealing ring. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Example: Figure 1-9 As shown, this utility model provides an improved fume hood, including a base cabinet 1 and a top cabinet 2. The top cabinet 2 is mounted on the upper surface of the base cabinet 1. A glass sealing door 21 is slidably installed on one side of the top cabinet 2. By setting the glass sealing door 21, when the glass sealing door 21 is in the slid-closed position, the working area between the base cabinet 1 and the top cabinet 2 can be sealed to prevent gas from entering the laboratory space. A faucet assembly 22 is detachably installed on the side wall of the top cabinet 2. A water tank 23 is installed on the side of the base cabinet 1 near the faucet assembly 22. By setting the faucet assembly 22 and the water tank 23, it is convenient for experimental personnel to use water during experimental operations. The water supply and drainage system includes a faucet assembly 22 comprising a faucet body 223, an upper fixing seat 221, and a threaded sleeve 222. A ventilation duct 24 is mounted on the top of the top cabinet 2. An installation component 3 is provided on the side wall of the top cabinet 2. By setting the installation component 3, the installation component 3 can facilitate the installation and disassembly of the faucet assembly 22, thereby facilitating the maintenance and repair of the faucet assembly 22 by the operators. A fixing component 5 is provided on the ventilation duct 24. By setting the fixing component 5, the fixing component 5 can facilitate the operators to fix the laboratory top air duct to the ventilation duct 24, reducing the assembly work intensity of the operators.

[0035] The mounting assembly 3 includes a mounting sleeve 31. A mounting groove 32 is provided on the side wall of the top cabinet 2. The inner walls of the mounting sleeve 31 and the mounting groove 32 are in movable contact. By providing the mounting sleeve 31 and the mounting groove 32, the mounting sleeve 31 can enter the mounting groove 32 during installation and can disengage from the mounting groove 32 during reverse operation. Four evenly distributed lugs 33 are fixedly provided on one side of the mounting sleeve 31, and mounting bolts 34 are threaded onto each of the four lugs 33. Two concealed grooves 35 are provided on each side of the mounting groove 32. The inner wall is provided with threaded holes 36. By setting up lugs 33, mounting bolts 34, concealed grooves 35, and threaded holes 36, when the mounting sleeve 31 enters the mounting groove 32, the lugs 33 enter the concealed grooves 35, thus concealing the lugs 33. When the mounting bolts 34 are threaded into the threaded holes 36, the mounting sleeve 31 is fixed to the inner wall of the mounting groove 32. One end of the mounting bolts 34 is threadedly connected to the inner wall of the threaded holes 36. The upper surface of the mounting sleeve 31 is provided with through holes 37. (Faucet assembly 22) The faucet body 223 can pass through the through hole 37 and be fixed to the mounting sleeve 31. By providing the through hole 37, after the mounting sleeve 31 is fixed to the inner wall of the mounting groove 32, the faucet body 223 can pass through the through hole 37. The lower surface of the upper fixing seat 221 is located above the through hole 37 and contacts the upper surface of the mounting sleeve 31. When the threaded sleeve 222 is rotated at the lower end of the faucet body 223, the threaded sleeve 222 rises along the thread of the faucet body 223. When the upper end of the threaded sleeve 222 is in contact with the top of the mounting sleeve 31... After contact with the wall, the faucet assembly 22 can be fixed on the mounting sleeve 31. The cabinet 1 has a pipe hole 38 on the side near the faucet assembly 22. The pipe hole 38 is vertically aligned with the through hole 37. By setting the pipe hole 38, after the faucet assembly 22 is fixed above the mounting sleeve 31, the hose for the faucet assembly 22 is assembled at the lower end of the faucet pipe body 223. The lower end of the hose passes through the pipe hole 38 and enters the cabinet 1. Then the hose is connected to the water supply pipe to realize the water supply of the faucet assembly 22.

[0036] A maintenance cover 39 is hinged to one side of the mounting sleeve 31. When the maintenance cover 39 is hinged open, the mounting sleeve 31 is in an open state, allowing the faucet assembly 22 to be removed for maintenance and repair. A movable groove 4 is provided on one side of the mounting sleeve 31, and a limiting seat 41 is slidably installed inside the movable groove 4. One side of the limiting seat 41 is in movable contact with one side of the maintenance cover 39. A limiting strip 411 is fixedly installed on one side of the mounting sleeve 31, and the other side of the maintenance cover 39 is in movable contact with one side of the limiting strip 411. By setting a limiting seat 41 and a limiting strip 411, when the inspection cover 39 is in the closed state, it is located between the limiting seat 41 and the limiting strip 411, which can limit the inspection cover 39 and keep it in the closed state. When the limiting seat 41 moves upward into the interior of the movable groove 4, the limiting of the inspection cover 39 can be released, which is used to open the inspection cover 39. Slider 42 is fixedly set on both sides of the inspection cover 39. The two sliders 42 are slidably set on the side wall of the movable groove 4. By setting the sliders 42, the sliders 42 can make the limiting seat 41 move upward stably into the movable groove 4.

[0037] A spring rod 43 is fixedly installed on the top wall of the movable groove 4. The telescopic end of the spring rod 43 is fixedly connected to one end of the limiting seat 41. By setting the spring rod 43, the extended state of the spring rod 43 can disengage the limiting seat 41 from the movable groove 4, thereby limiting the inspection cover 39. Two hand pull grooves 44 are opened on one side of the inspection cover 39. By setting the hand pull grooves 44, it is convenient for the operator to pull the inspection cover 39 to flip open and close.

[0038] The fixing component 5 includes two clamping plates 51, both made of elastic material and having a semi-circular structure. A circular groove 52 is provided at one end of the ventilation duct 24. The two clamping plates 51 are in movable contact with the inner wall of the circular groove 52. By providing the circular groove 52, when the ductwork (corrugated duct) on the laboratory ceiling is fitted onto the upper end of the ventilation duct 24, the ductwork wraps around the circular groove 52. When the two clamping plates 51 are fixed to the inner wall of the circular groove 52, the ductwork on the laboratory ceiling is clamped, thus achieving the installation of the ductwork on the laboratory ceiling and the ventilation duct 24. Each of the two clamping plates 51 has a fixed clamping plate on its opposite side. Anti-slip pad 53 is provided to improve the stability between the pressure plate 51 and the air duct at the top of the laboratory. Ear plates 54 are fixedly provided at both ends of the two pressure plates 51. Locking screws 55 are threadedly installed between two adjacent ear plates 54. Nuts 56 are threadedly installed at both ends of the two locking screws 55. By providing ear plates 54, locking screws 55 and nuts 56, the two pressure plates 51 can be locked in the circular groove 52. A sealing ring 57 is fixedly provided at one end of the ventilation duct 24. By providing the sealing ring 57, the sealing ring 57 can improve the sealing between the air duct at the top of the laboratory and the upper end of the ventilation duct 24.

[0039] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An improved fume hood comprising a base cabinet (1) and a top cabinet (2), characterized in that: The top cabinet (2) is assembled on the upper surface of the floor cabinet (1), a faucet assembly (22) is detachably installed on the side wall of the top cabinet (2), a ventilation duct (24) is assembled at the top end of the top cabinet (2), and a mounting assembly (3) is arranged on the side wall of the top cabinet (2); a fixing assembly (5) is arranged on the ventilation duct (24). The mounting assembly (3) comprises a mounting sleeve (31), a mounting groove (32) is formed in the side wall of the top cabinet (2), the inner walls of the mounting sleeve (31) and the mounting groove (32) are in movable contact, a penetrating hole (37) is formed in the upper surface of the mounting sleeve (31), the faucet assembly (22) penetrates through the penetrating hole (37) and is fixed on the mounting sleeve (31), and a drain pipe hole (38) is formed in the side of the floor cabinet (1) close to the faucet assembly (22), and the drain pipe hole (38) is vertically corresponding to the penetrating hole (37). A maintenance cover plate (39) is hingedly connected to one side of the mounting sleeve (31), an activity groove (4) is formed in one side of the mounting sleeve (31), a limiting seat (41) is slidably arranged in the activity groove (4), one side of the limiting seat (41) and one side of the maintenance cover plate (39) are in movable contact, and a limiting strip (411) is fixedly arranged on one side of the mounting sleeve (31), and the other side of the maintenance cover plate (39) and one side of the limiting strip (411) are in movable contact. A spring rod (43) is fixedly arranged on the top wall of the activity groove (4), and one end of the spring rod (43) is fixedly connected with one end of the limiting seat (41).

2. An improved fume hood as claimed in claim 1, wherein, A glass sealing door (21) is slidably arranged on one side of the top cabinet (2), and a sink (23) is assembled on the side of the floor cabinet (1) close to the faucet assembly (22).

3. An improved fume hood as claimed in claim 1, wherein, Four ear blocks (33) are fixedly arranged on one side of the mounting sleeve (31), four mounting bolts (34) are threadedly rotatably arranged on the four ear blocks (33), two dark grooves (35) are formed in the two sides of the mounting groove (32), and threaded holes (36) are formed in the inner walls of the four dark grooves (35), and one end of the mounting bolt (34) is threadedly rotatably connected with the inner wall of the threaded hole (36).

4. The improved fume hood of claim 1, wherein Sliding blocks (42) are fixedly arranged on the two sides of the maintenance cover plate (39), and the two sliding blocks (42) are slidably arranged on the side walls of the activity groove (4).

5. An improved fume hood as claimed in claim 1, wherein, Two hand pulling grooves (44) are formed in one side of the maintenance cover plate (39).

6. An improved fume hood as claimed in claim 1, wherein, The fixing assembly (5) comprises two pressing plates (51), the two pressing plates (51) are made of elastic material, the two pressing plates (51) are in semicircular structure, a circular recess (52) is formed in one end of the ventilation duct (24), the two pressing plates (51) are in movable contact with the inner wall of the circular recess (52), ear plates (54) are fixedly arranged on the two ends of the two pressing plates (51), adjacent two ear plates (54) are threadedly rotatably arranged with a locking screw (55), and the two locking screws (55) are threadedly arranged with nuts (56) at the two ends.

7. An improved fume hood as claimed in claim 6 wherein, Anti-skid pads (53) are fixedly arranged on the opposite sides of the two pressing plates (51).

8. The improved fume hood as claimed in claim 1 wherein, One end of the ventilation duct (24) is fixedly provided with a sealing ring (57).

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