Exhaust device

Abstract

The utility model discloses an exhaust device, and relates to the technical field of exhaust devices. The exhaust device comprises a swing arm, one end of the swing arm is fixedly connected with an air suction cover, the outer side of the air suction cover is fixedly connected with a mounting pipe, and a fixing assembly is arranged on the surface of the mounting pipe; an exhaust pipe is installed on the fixing assembly, the exhaust pipe and the air suction cover are in air circulation, and the fixing assembly comprises an installation base, a connecting rod, an arc-shaped clamping plate, a stress inclined block, an anti-skid pad, a threaded part and an extrusion ring. According to the exhaust device, the exhaust pipe can be quickly mounted and dismounted by arranging the exhaust pipe, the exhaust pipe can be mounted and dismounted by rotating an extrusion ring, matching a threaded part, a stress inclined block, a connecting rod and an arc-shaped clamping plate, and the exhaust pipe can be neatly arranged along a swing arm by arranging a wire arranging assembly; and interference or collision of the exhaust pipe to other parts in the process that the swing arm drives the air suction assembly to move is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust devices, in particular to an exhaust device. Background Art

[0002] At present, when laboratories conduct experiments through equipment, gases are often produced. Usually, the gases are toxic and have a peculiar smell, which will affect the surrounding working environment and even cause harm to the body. In order to prevent toxic gases from polluting the indoor environment, exhaust devices are usually installed to discharge the gases. The exhaust devices are usually composed of a swing arm mechanism and an air suction component.

[0003] The following problems still exist in actual use:

[0004] (1) When exhausting multiple devices at the same time, the prior art is to use cable ties or tape to connect the exhaust pipe of one of the devices to the air intake hood of the exhaust device. This connection method has low installation efficiency and is also cumbersome when the exhaust pipe is subsequently disassembled.

[0005] (2) When the swing arm mechanism drives the air intake assembly to move, the exhaust pipe is prone to hit other components (such as bottles and cans) due to the lack of a wire management structure. Utility Model Content

[0006] In view of the shortcomings of the prior art, the utility model provides an exhaust device, which has the advantages of being able to quickly install or disassemble the exhaust pipe and neatly arrange the exhaust pipe along the swing arm, thereby avoiding interference or collision of the exhaust pipe with other components in the process of the swing arm driving the suction assembly to move, thereby solving the problems raised in the background technology.

[0007] The utility model provides the following technical solution: an exhaust device, comprising a swing arm, characterized in that one end of the swing arm is fixedly connected to an air suction hood, the outer side of the air suction hood is fixedly connected to a mounting pipe, and a fixing component is arranged on the surface of the mounting pipe; an exhaust pipe is installed on the fixing component, and air is circulated between the exhaust pipe and the air suction hood;

[0008] The fixing assembly includes a mounting seat, a connecting rod, an arc-shaped clamping plate, a force-bearing inclined block, an anti-skid pad, a threaded portion and an extrusion ring. The mounting seat is arranged on the outer walls of both sides of the mounting tube, a connecting rod is rotatably arranged on the mounting seat, an arc-shaped clamping plate is arranged on the top end of the connecting rod, a force-bearing inclined block is arranged on the bottom end of the connecting rod, an anti-skid pad is arranged on the inner side of the arc-shaped clamping plate, a threaded portion is arranged on the outer wall of the mounting tube, an extrusion ring is arranged on the surface of the threaded portion, an inclined surface is arranged on the outer side of the extrusion ring and is parallel to the inclined surface of the force-bearing inclined block, and a sealing ring is arranged on the inner wall of the mounting tube.

[0009] Preferably, at least one wire management component is provided on the surface of the swing arm. The wire management component includes an annular guide rail, a slider, a rack, a gear, an elastic buckle, and a knob. At least one annular guide rail is fixedly connected to the surface of the swing arm. The slider has a "匸"-shaped structure, and the end portions on its upper and lower sides are respectively slidably connected to the upper and lower surfaces of the annular guide rail. A rack is fixedly connected to the outer wall of the annular guide rail. A gear is rotatably connected between the upper and lower inner walls of the slider, and the gear meshes with the rack. The other end of the slider is fixedly connected with a semi-circular elastic buckle adapted to the outer diameter of the exhaust pipe, and a knob is fixedly connected to the top of the gear.

[0010] Preferably, the mounting seat is fixedly connected to the outer wall of the mounting pipe through an annular connecting piece.

[0011] Preferably, the bottom of the extrusion ring is conical, and the inclined surface of the conical portion fits with the inclined surface of the force-receiving inclined block.

[0012] Preferably, the elastic buckle fits with the surface of the exhaust pipe. The exhaust pipe is fixed to the surface of the swing arm through the elastic buckle. The pipe body of the exhaust pipe can be successively snapped into the elastic buckles on the swing arm, so as to neatly arrange the exhaust pipe along the swing arm.

[0013] Preferably, the anti-slip pad is made of anti-slip silica gel, which can increase the friction with the exhaust pipe, prevent the exhaust pipe from shifting, and achieve a better fixing effect.

[0014] Preferably, the sealing ring is made of rubber, which can seal the gap between the mounting pipe and the exhaust pipe to prevent gas leakage.

[0015] Compared with the prior art, the present utility model has the following beneficial effects:

[0016] 1. For this exhaust device, by providing a fixing component, the rapid installation and disassembly of the exhaust pipe can be realized, which is convenient for personnel to install and disassemble the exhaust pipe. By rotating the extrusion ring and cooperating with the threaded portion, the force-receiving inclined block, the connecting rod, and the arc-shaped clamping plate, the installation and disassembly of the exhaust pipe can be completed, and the operation is simple and easy to understand.

[0017] 2. For this exhaust device, by providing a wire management component, the pipe body of the exhaust pipe can be neatly arranged along the swing arm, avoiding interference or collision of the exhaust pipe with other components during the process of the swing arm driving the suction component to move. By rotating the knob and cooperating with the gear, the rack, the slider, and the annular guide rail, the elastic buckle can be driven to move along the surface of the swing arm, and the position of the elastic buckle can be adjusted according to the actual situation, increasing flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the device of the present utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the air suction hood of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the fixed component of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the cable management component of the utility model.

[0022] In the figure: 1. swing arm; 2. suction hood; 3. mounting tube; 4. fixing assembly; 401. mounting seat; 402. connecting rod; 403. arc clamping plate; 404. load-bearing inclined block; 405. anti-skid pad; 406. threaded part; 407. extrusion ring; 408. sealing ring; 5. exhaust pipe; 6. cable management assembly; 601. annular guide rail; 602. slider; 603. rack; 604. gear; 605. elastic buckle; 606. knob. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 3 An exhaust device includes a swing arm 1, one end of the swing arm 1 is fixedly connected to an air intake hood 2, the outer side of the air intake hood 2 is fixedly connected to a mounting tube 3, the surface of the mounting tube 3 is provided with a fixing assembly 4, the fixing assembly 4 includes a mounting seat 401, a connecting rod 402, an arc-shaped clamping plate 403, a force-bearing inclined block 404, an anti-slip pad 405, a threaded portion 406 and an extrusion ring 407, the mounting seat 401 is arranged on the outer walls of both sides of the mounting tube 3, and a connecting rod 402 is rotatably provided on the mounting seat 401. Connecting rod 402, the top of connecting rod 402 is provided with arc-shaped clamping plate 403, the bottom of connecting rod 402 is provided with force-bearing inclined block 404, the inner side of arc-shaped clamping plate 403 is provided with anti-skid pad 405, the outer wall of mounting tube 3 is provided with threaded part 406, the surface of threaded part 406 is provided with extrusion ring 407, the outer side of extrusion ring 407 is provided with inclined surface and is parallel to the inclined surface of force-bearing inclined block 404, the inner wall of mounting tube 3 is provided with sealing ring 408;

[0025] By providing a fixing component 4, the exhaust pipe 5 can be quickly installed and disassembled, which is convenient for personnel to install and disassemble the exhaust pipe 5. By rotating the extrusion ring 407, cooperating with the threaded part 406, the force-bearing bevel block 404, the connecting rod 402, and the arc-shaped clamping plate 403, the exhaust pipe 5 can be installed and disassembled. The operation is simple and easy to understand.

[0026] Please refer to Figures 1 to 3 , the mounting base 401 is fixedly connected to the outer wall of the mounting pipe 3, the connecting rod 402 is rotatably connected to the inner wall of the mounting base 401, the arc-shaped clamping plate 403 is fixedly connected to the top end of the connecting rod 402, the force-receiving inclined block 404 is fixedly connected to the bottom end of the connecting rod 402, the anti-slip pad 405 is fixedly connected to the inner wall of the arc-shaped clamping plate 403, the threaded portion 406 is opened on the outer wall of the mounting pipe 3, the pressing ring 407 is threadedly connected to the mounting pipe 3 through the threaded portion 406, the sealing ring 408 is fixedly connected to the inner wall of the mounting pipe 3, the bottom of the pressing ring 407 is conical, and the inclined surface of the conical portion is in contact with the inclined surface of the force-receiving inclined block 404. The material of the anti-slip pad 405 is anti-slip silica gel, the material of the sealing ring 408 is rubber, the top end of the mounting pipe 3 is provided with an exhaust pipe 5 through the fixing component 4, and the exhaust pipe 5 communicates with the suction hood 2;

[0027] The friction with the exhaust pipe 5 can be increased through the anti-slip pad 405 to prevent the exhaust pipe 5 from shifting, achieving a better fixing effect. The gap between the mounting pipe 3 and the exhaust pipe 5 can be sealed through the sealing ring 408 to prevent gas leakage.

[0028] Please refer to Figures 1 to 4 , at least one wire management component 6 is arranged on the surface of the swing arm 1. The wire management component 6 includes an annular guide rail 601, a slider 602, a rack 603, a gear 604, an elastic buckle 605 and a knob 606. At least one annular guide rail 601 is fixedly connected to the surface of the swing arm 1. The slider 602 is in a "C" shape structure, and the end parts on its upper and lower sides are respectively slidably connected to the upper and lower surfaces of the annular guide rail 601. The rack 603 is fixedly connected to the outer wall of the annular guide rail 601. A gear 604 is rotatably connected between the upper and lower inner walls of the slider 602, and the gear 604 meshes with the rack 603. The other end of the slider 602 is fixedly connected with a semi-circular elastic buckle 605 adapted to the outer diameter of the exhaust pipe 5. The top of the gear 604 is fixedly connected with a knob 606. The elastic buckle 605 is in contact with the surface of the exhaust pipe 5, and the exhaust pipe 5 is fixed on the surface of the swing arm 1 through the elastic buckle 605;

[0029] The exhaust pipes 5 are respectively snapped into the elastic buckles 605 on the swing arm 1, so that the pipe bodies of the exhaust pipes 5 are neatly arranged along the swing arm 1. When the position of the elastic buckle 605 needs to be adjusted, only by rotating the knob 606 can the gear 604 be driven to rotate. Cooperating with the gear 604, the rack 603, the slider 602 and the annular guide rail 601, the elastic buckle 605 can be driven to move along the surface of the swing arm 1, and the position of the elastic buckle 605 can be adjusted according to the actual situation.

[0030] In the present utility model, the working steps of the device are as follows:

[0031] The first step: when the exhaust pipe 5 needs to be connected to the air hood 2, first insert one end of the exhaust pipe 5 into the mounting tube 3, so that the exhaust pipe 5 is located between the two arc-shaped clamping plates 403, and then rotate the extrusion ring 407 to make it move upward under the action of the threaded portion 406, so that the top of the extrusion ring 407 pushes the force-bearing inclined block 404, so that the connecting rod 402 rotates on the mounting seat 401, and at the same time drives the arc-shaped clamping plate 403 to move toward the exhaust pipe 5, so that the two arc-shaped clamping plates 403 are close to each other, and finally the anti-slip pad 405 is fitted with the surface of the exhaust pipe 5, the exhaust pipe 5 is clamped and fixed, and the gap is sealed with the sealing ring 408, so as to complete the installation and fixation of the exhaust pipe 5, and the exhaust pipe 5 can be disassembled by the opposite operation, so that the exhaust pipe 5 can be quickly installed and disassembled;

[0032] The second step: after the exhaust pipe 5 is connected to the air hood 2, the tube body of the exhaust pipe 5 can be inserted into the elastic buckle 605 on the swing arm 1 one by one, so that the exhaust pipe 5 can be neatly arranged along the swing arm 1 to avoid interference or collision of the exhaust pipe 5 with other components during the movement of the air hood 2 driven by the swing arm 1. When the position of the elastic buckle 605 needs to be adjusted, the knob 606 can be turned to drive the gear 604 to rotate, and the slider 602 can be driven to move along the annular guide rail 601 through the rack 603, thereby driving the elastic buckle 605 to move along the surface of the swing arm 1. The position of the elastic buckle 605 can be adjusted according to actual conditions to increase flexibility.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An exhaust device, comprising a swing arm (1), characterized in that: One end of the swing arm (1) is fixedly connected with an air suction hood (2). An installation pipe (3) is fixedly connected to the outer side of the air suction hood (2). A fixing component (4) is arranged on the surface of the installation pipe (3). An exhaust pipe (5) is installed on the fixing component (4), and the exhaust pipe (5) is in air communication with the air suction hood (2). The fixing component (4) includes a mounting seat (401), a connecting rod (402), an arc-shaped clamping plate (403), a force-receiving inclined block (404), an anti-slip pad (405), a threaded part (406) and a pressing ring (407). The mounting seats (401) are arranged on the outer walls on both sides of the installation pipe (3). A connecting rod (402) is rotatably arranged on the mounting seat (401). An arc-shaped clamping plate (403) is arranged at the top end of the connecting rod (402). A force-receiving inclined block (404) is arranged at the bottom end of the connecting rod (402). An anti-slip pad (405) is arranged on the inner side of the arc-shaped clamping plate (403). A threaded part (406) is arranged on the outer wall of the installation pipe (3). A pressing ring (407) is arranged on the surface of the threaded part (406). The outer side of the pressing ring (407) is provided with an inclined surface which is parallel and abuts against the inclined surface of the force-receiving inclined block (404). A sealing ring (408) is arranged on the inner wall of the installation pipe (3).

2. An exhaust device according to claim 1, characterized in that: At least one wire management component (6) is arranged on the surface of the swing arm (1). The wire management component (6) includes an annular guide rail (601), a slider (602), a rack (603), a gear (604), an elastic buckle (605) and a knob (606). At least one annular guide rail (601) is fixedly connected to the surface of the swing arm (1). The slider (602) is in an "匸" shape structure, and the end parts on its upper and lower sides are respectively slidably connected to the upper and lower surfaces of the annular guide rail (601). A rack (603) is fixedly connected to the outer wall of the annular guide rail (601). A gear (604) is rotatably connected between the upper and lower inner walls of the slider (602), and the gear (604) meshes with the rack (603). The other end of the slider (602) is fixedly connected with a semi-circular elastic buckle (605) adapted to the outer diameter of the exhaust pipe (5). A knob (606) is fixedly connected to the top of the gear (604).

3. An exhaust device according to claim 1, characterized in that: The mounting seat (401) is fixedly connected to the outer wall of the installation pipe (3) through an annular connecting piece.

4. An exhaust device according to claim 1, characterized in that: The bottom of the pressing ring (407) is conical, and the inclined surface of the conical part abuts against the inclined surface of the force-receiving inclined block (404).

5. An exhaust device according to claim 2, characterized in that: The elastic buckle (605) abuts against the surface of the exhaust pipe (5), and the exhaust pipe (5) is fixed to the surface of the swing arm (1) through the elastic buckle (605).

6. An exhaust device according to claim 1, characterized in that: The material of the anti-slip pad (405) is anti-slip silica gel.

7. An exhaust device according to claim 1, characterized in that: The material of the sealing ring (408) is rubber.

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