Alkali throwing test line exhaust device

Abstract

The utility model provides an alkali throwing test line exhaust device, which belongs to the technical field of exhaust devices and comprises a first inner pipe and a first outer pipe. The first inner pipe is sleeved with the first outer pipe, and the first outer pipe is connected with the second outer pipe through the first rotary joint. The first inner pipe and the first outer pipe are fixed through a clamping mechanism; the second inner pipe is sleeved with the second outer pipe, and the second outer pipe is fixed through a clamping mechanism; the second inner pipe is connected with the third inner pipe through a second rotating joint; the outer side of the third inner pipe is sleeved with a third outer pipe, and the third inner pipe is fixed through a clamping mechanism; the third outer pipe is connected with the fourth inner pipe through a third rotary joint; and the bottom of the fourth inner pipe is detachably connected with an exhaust hood. The exhaust hood comprises the three telescopic rod mechanisms composed of the inner pipes and the outer pipes, all the telescopic rods are connected through the rotating joints, telescopic and rotating can be achieved, flexibility is good, and an operator can conveniently move the exhaust hood to a waste gas generation position so as to improve the exhaust effect.

Description

Technical Field

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

[0002] Alkali polishing test uses an alkaline solution to chemically corrode and polish the surface of materials. Under appropriate temperature and concentration conditions, the alkaline solution can selectively remove the microscopic uneven parts on the material surface, thereby achieving the polishing effect. Unhealthy gases will be generated during the alkali polishing test and need to be discharged in time to avoid harm to the human body. At present, the exhaust device of the alkali polishing test line is set on the wall and cannot be moved, with poor flexibility, resulting in unsatisfactory exhaust effect. Therefore, the utility model provides an exhaust device for an alkali polishing test line. Content of the Utility Model

[0003] The purpose of the utility model is to provide an exhaust device for an alkali polishing test line.

[0004] To solve the above technical problems, the purpose of the utility model is realized as follows:

[0005] An exhaust device for an alkali polishing test line includes: a first inner tube and a first outer tube; a connecting plate is arranged at the first end of the first inner tube, and a gas source connection end is arranged on the side; the first outer tube is cooperatively sleeved outside the first inner tube, its first end is sleeved on the second end of the first inner tube, and the second end is connected with a first rotary joint;

[0006] The first inner tube and the first outer tube are relatively fixed through a clamping mechanism; the clamping mechanism includes a plurality of clamping flaps and an outer fixing rotary sleeve; the first end of the clamping flap is fixedly connected to the end of the first end of the first outer tube, and its thickness gradually becomes thicker from the first end to the second end; the thickness of the first end of the clamping flap is the same as the wall thickness of the first outer tube, and at the same time, a thread is arranged on its outer wall; the thread extends from the clamping flap to the first outer tube; the outer fixing rotary sleeve is in threaded fit with the outside of the first outer tube and the clamping flap;

[0007] The other side of the first rotary joint is connected to the first end of a second outer tube; the second outer tube is sleeved outside a second inner tube and is relatively fixed through a clamping mechanism; the first end of the second inner tube is connected to one side of a second rotary joint;

[0008] The other side of the second rotary joint is connected to the first end of a third inner tube; a third outer tube is sleeved outside the third inner tube, and the third inner tube and the third outer tube are relatively fixed through a clamping mechanism; the second end of the third outer tube is connected to one side of a third rotary joint;

[0009] The other side of the third rotary joint is connected with a fourth inner tube; the bottom of the fourth inner tube is detachably connected with an exhaust hood.

[0010] On the basis of the above solution and as a preferred solution of the above solution, the thickness of the second end of the clamping flap is not greater than twice the thickness of its first end.

[0011] On the basis of the above solution and as a preferred solution of the above solution, the end of the outer fixing sleeve facing the clamping flap is provided with a chamfer.

[0012] On the basis of the above solution and as a preferred solution of the above solution, the exhaust hood is detachably connected with the fourth inner tube through a buckle mechanism; the buckle mechanism includes mounting seats symmetrically arranged on the outer walls on both sides of the fourth inner tube; a cavity is formed in the mounting seat to accommodate a lifting buckle; the bottom of the lifting buckle is elastically connected with the mounting seat through a first spring; a fourth outer tube is arranged at the top of the exhaust hood; a protrusion is arranged on the top of the fourth outer tube corresponding to the mounting seat; a through hole adapted to the lifting buckle is formed in the protrusion.

[0013] On the basis of the above solution and as a preferred solution of the above solution, a second spring is arranged at the bottom of the fourth inner tube; the second spring can abut against an abutting ring portion arranged at the bottom of the fourth outer tube.

[0014] The beneficial effects of the present utility model are as follows: the present utility model includes a telescopic rod mechanism composed of three sections of inner tubes and outer tubes, and each telescopic rod is connected through a rotary joint, so that telescopic and rotational movements can be realized, with good flexibility, and it is convenient for an operator to move the exhaust hood to the place where waste gas is generated to improve the exhaust effect. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the present utility model.

[0016] Figure 2 It is an exploded schematic diagram of the first inner tube and the first outer tube of the present utility model.

[0017] Figure 3 It is a schematic structural diagram of the fourth inner tube and the exhaust hood of the present utility model.

[0018] Figure 4 It is a front view of the fourth inner tube of the present utility model.

[0019] Figure 5 It is a schematic structural diagram of the exhaust hood of the present utility model.

[0020] In the figure: 1. First inner tube; 2. First outer tube; 3. Connection plate; 4. Gas source connection end; 5. Clamping flap; 6. Outer fixing rotating sleeve; 7. First rotating joint; 8. Second outer tube; 9. Second inner tube; 10. Second rotating joint; 11. Third inner tube; 12. Third outer tube; 13. Third rotating joint; 14. Fourth inner tube; 15. Exhaust hood; 16. Mounting seat; 17. Lifting buckle; 18. Fourth outer tube; 19. Protrusion; 20. Second spring; 21. Abutting ring part. Detailed implementation mode

[0021] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] As Figure 1 shown, an exhaust device for an alkali polishing test line includes: a first inner tube 1 and a first outer tube 2. A connection plate 3 is provided at the first end of the first inner tube 1, and a gas source connection end 4 is provided on the side. The entire device can be connected to the ceiling through the connection plate 3. The gas source connection end 4 is connected to the gas source.

[0023] As Figure 2 shown, the first outer tube 2 is sleeved outside the first inner tube 1 in a matching manner. Its first end is sleeved on the second end of the first inner tube 1 from the second end of the first inner tube 1, and the second end is connected to the first rotating joint 7. The first outer tube 2 and the first inner tube 1 can slide relative to each other to change the length.

[0024] The first inner tube 1 and the first outer tube 2 are relatively fixed through a clamping mechanism. The clamping mechanism includes a plurality of clamping flaps 5 and an outer fixing rotating sleeve 6.

[0025] The first end of the clamping flap 5 is fixedly connected to the end of the first end of the first outer tube 2, and its thickness gradually becomes thicker from the first end to the second end. The thickness of the first end of the clamping flap 5 is the same as the wall thickness of the first outer tube 2. At the same time, a thread (not shown in the drawing) is provided on its outer wall, and the thread extends from the clamping flap 5 to the first outer tube 2. The outer fixing rotating sleeve 6 is in threaded fit with the outside of the first outer tube 2 and the clamping flap 5. There is a gap between a plurality of clamping flaps 5. When the outer fixing rotating sleeve 6 is rotated to move along the thread and gradually move towards the second end of the clamping flap 5, due to the fact that the clamping flap 5 gradually becomes thicker, the clamping flap 5 will clamp the first inner tube 1 under the action of the outer fixing rotating sleeve 6, realizing the relative fixation of the first inner tube 1 and the first outer tube 2.

[0026] Among them, the thickness of the second end of the clamping flap 5 is not greater than twice the thickness of its first end. The end of the outer fixing rotating sleeve 6 facing the clamping flap 5 is provided with a chamfer to facilitate cooperation with the gradually thickening clamping flap 5.

[0027] The other side of the first rotating joint 7 is connected to the first end of the second outer tube 8. The second outer tube 8 is sleeved outside the second inner tube 9, and the relative fixation between the two is achieved through a clamping mechanism. The first end of the second inner tube 9 is connected to one side of the second rotating joint 10. The angle between the first inner and outer tubes and the second inner and outer tubes can be adjusted through the first rotating joint 7. Among them, the clamping mechanism of the second inner and outer tubes is the same as that of the first inner and outer tubes.

[0028] The other side of the second rotating joint 10 is connected to the first end of the third inner tube 11. The third outer tube 12 is sleeved outside the third inner tube 11, and the relative fixation between the third inner tube 11 and the third outer tube 12 is achieved through a clamping mechanism. The second end of the third outer tube 12 is connected to one side of the third rotating joint 13. The relative angle between the third inner and outer tubes and the second inner and outer tubes is adjusted through the second rotating joint 10. The clamping mechanism of the third inner and outer tubes is the same as that of the first inner and outer tubes.

[0029] The other side of the third rotating joint 13 is connected to a fourth inner tube 14, and an exhaust hood 15 is detachably connected to the bottom of the fourth inner tube 14. The fourth inner tube 14 and the exhaust hood 15 can adjust the relative angle with the third inner and outer tubes through the third rotating joint 13.

[0030] Among them, the above-mentioned rotating joints are all prior arts and will not be elaborated in this embodiment.

[0031] Specifically, as Figures 3 to 5 shown, the exhaust hood 15 is detachably connected to the fourth inner tube 14 through a snap mechanism. The snap mechanism includes mounting seats 16 symmetrically arranged on the outer walls on both sides of the fourth inner tube 14. A cavity is provided in the mounting seat 16 to accommodate the lifting snap 17. The bottom of the lifting snap 17 is elastically connected to the mounting seat 16 through a first spring, and the lifting snap 17 can be pressed into the mounting seat 16 by pressing.

[0032] The top of the exhaust hood 15 is provided with a fourth outer tube 18. The fourth outer tube 18 is sleeved outside the fourth inner tube 14, and a protrusion 19 is provided at the top corresponding to the mounting seat 16 for sliding. A through hole adapted to the lifting snap 17 is provided on the protrusion 19. The lifting snap 17 can extend through the hole to fix the exhaust hood 15 and the fourth inner tube 14.

[0033] In addition, a second spring 20 is provided at the bottom of the fourth inner tube 14. The second spring 20 can abut against a contact ring portion 21 provided at the bottom of the fourth outer tube 18. When the exhaust hood 15 is fixedly connected to the fourth inner tube 14, the second spring 20 is compressed, and the exhaust hood 15 and the fourth inner tube 14 are tightly connected through the elasticity of the spring to prevent shaking caused by the existence of gaps in the snap structure.

[0034] The preferred specific embodiments of the present utility model have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present utility model without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field according to the concept of the present utility model through logical analysis, reasoning or limited experiments on the basis of the prior art shall fall within the protection scope determined by the claims.

Claims

1. An exhaust device for an alkaline polishing test line, characterized in that, Comprising: A first inner tube (1) and a first outer tube (2); a connecting plate (3) is provided at the first end of the first inner tube (1), and an air source connection end (4) is provided on the side; the first outer tube (2) is sleeved outside the first inner tube (1) in a matching manner, its first end is sleeved on the first inner tube (1) from the second end of the first inner tube (1), and the second end is connected to a first rotary joint (7); The first inner tube (1) and the first outer tube (2) are relatively fixed by a clamping mechanism; the clamping mechanism includes a plurality of clamping flaps (5) and an outer fixing sleeve (6); the first end of the clamping flap (5) is fixedly connected to the end of the first end of the first outer tube (2), and its thickness gradually thickens from the first end to the second end; the thickness of the first end of the clamping flap (5) is the same as the wall thickness of the first outer tube (2), and at the same time, a thread is provided on its outer wall; the thread extends from the clamping flap (5) to the first outer tube (2); the outer fixing sleeve (6) is in threaded fit with the outside of the first outer tube (2) and the clamping flap (5); The other side of the first rotary joint (7) is connected to the first end of a second outer tube (8); the second outer tube (8) is sleeved outside a second inner tube (9) and is relatively fixed by a clamping mechanism; the first end of the second inner tube (9) is connected to one side of a second rotary joint (10); The other side of the second rotary joint (10) is connected to the first end of a third inner tube (11); a third outer tube (12) is sleeved outside the third inner tube (11), and the third inner tube (11) and the third outer tube (12) are relatively fixed by a clamping mechanism; the second end of the third outer tube (12) is connected to one side of a third rotary joint (13); The other side of the third rotary joint (13) is connected to a fourth inner tube (14); an exhaust hood (15) is detachably connected to the bottom of the fourth inner tube (14).

2. The exhaust device for the alkaline polishing test line according to claim 1, wherein The thickness of the second end of the clamping flap (5) is not greater than twice the thickness of its first end.

3. The exhaust device for the alkaline polishing test line according to claim 1, characterized in that, The end of the outer fixing sleeve (6) facing the clamping flap (5) is provided with a chamfer.

4. The exhaust device for the alkaline polishing test line according to claim 1, wherein The exhaust hood (15) is detachably connected to the fourth inner tube (14) through a snap mechanism; the snap mechanism includes mounting seats (16) symmetrically arranged on the outer walls on both sides of the fourth inner tube (14); a cavity is provided in the mounting seat (16) to accommodate a lifting snap (17); the bottom of the lifting snap (17) is elastically connected to the mounting seat (16) through a first spring; a fourth outer tube (18) is provided at the top of the exhaust hood (15); a protrusion (19) corresponding to the mounting seat (16) is provided at the top of the fourth outer tube (18); a through hole adapted to the lifting snap (17) is provided on the protrusion (19).

5. The exhaust device for the alkaline polishing test line according to claim 4, wherein A second spring (20) is provided at the bottom of the fourth inner tube (14); the second spring (20) can abut against an abutting ring portion (21) provided at the bottom of the fourth outer tube (18).

Images