Noise reduction protection device for oxygen discharge of nitrogen making machine

Abstract

The utility model discloses a nitrogen making machine oxygen discharge noise reduction protection device which comprises an air inlet pipe, one side of the air inlet pipe is fixedly connected with an outer layer pipe, the side, away from the air inlet pipe, of the outer layer pipe is provided with a first sealing ring, the side, away from the outer layer pipe, of the first sealing ring is fixedly connected with a fixed pipe, and the outer wall of the fixed pipe is fixedly connected with two side plates. Clamping grooves are formed in the sides, away from each other, of the two side plates, clamping blocks are arranged in the clamping grooves, the outer walls of the two clamping blocks are fixedly connected with the same circular ring, the inner wall of the circular ring is fixedly connected with two sliding blocks, the two sliding blocks are sleeved with sliding rails, the sliding blocks are slidably connected with the sliding rails, and the two sliding rails are fixedly connected with the outer wall of the outer layer pipe; the outer wall of the circular ring is fixedly connected with a first fixing plate and a second fixing plate, and the second fixing plate is fixedly connected with the outer-layer pipe. The device is easy to operate, convenient to assemble and disassemble and capable of effectively reducing operation time, improving working efficiency and guaranteeing the overall progress of maintenance work.

Description

TECHNICAL FIELD

[0001] The utility model relates to nitrogen making machine silencing technical field especially relates to a nitrogen making machine oxygen exhaust silencing protection device. BACKGROUND

[0002] The nitrogen making machine refers to the air as raw material, utilizes the physical method to separate the oxygen and nitrogen in it and obtains the nitrogen gas equipment.

[0003] Through the retrieval, the patent of China patent authorization number CN222209502U discloses a kind of nitrogen making machine oxygen exhaust silencing protection device, it is related to nitrogen making machine silencing technical field, including nitrogen making machine body, air inlet is installed in the side of nitrogen making machine body, and the end of air inlet is connected with oxygen exhaust pipe, the other end of oxygen exhaust pipe is connected with exhaust end, and the inside of oxygen exhaust pipe is equidistantly distributed with baffle.The utility model is provided with baffle and first sound insulation cotton, in the process of oxygen exhaust, by the obstruction of baffle, the flow rate of gas can be effectively reduced, and there is first sound insulation cotton wrapped outside oxygen exhaust pipe, noise can be absorbed, so that the generation of noise can be effectively reduced, rotating block and mounting ring are provided, after using for a period of time, staff can extract limit bolt from the inside of oxygen exhaust pipe, to facilitate the regular replacement operation of second sound insulation cotton and first sound insulation cotton, so that the absorption effect of noise can be guaranteed.

[0004] The nitrogen making machine oxygen exhaust silencing protection device in the above patent has the following disadvantages: during installation and disassembly, the two rotating blocks need to be twisted multiple times to remove the limit bolt, which is relatively cumbersome, increases the operation time, reduces the work efficiency, affects the overall progress of maintenance work, and the above problems need to be solved urgently. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art and provides a nitrogen making machine oxygen exhaust silencing protection device.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] The utility model provides an oxygen exhaust silencing protection device of nitrogen making machine, including the air inlet pipe, one side of air inlet pipe is connected with the outer layer pipe fixedly, the first sealing ring is arranged on the side away from the air inlet pipe of outer layer pipe, the fixed tube is fixedly connected with the outer wall of the fixed tube on the side away from the outer layer pipe, the outer wall of the fixed tube is fixedly connected with two side plates, two side plates are all set up the clamping groove on the side away from each other, the clamping groove is provided with the clamping block, the outer wall of two clamping blocks is all fixedly connected with same circular ring, the inner wall of circular ring is fixedly connected with two sliding blocks, two sliding blocks all are sheathed with slide rail, the sliding block is connected with slide rail, the outer wall of two slide rails is all fixedly connected with outer layer pipe, the outer wall of circular ring is fixedly connected with first fixed plate and second fixed plate, the second fixed plate is fixedly connected with outer layer pipe, first fixed plate and second fixed plate are all fixedly connected with same spring on the side close to each other, because the technical means that the position of fixed tube is fixed is adopted, so that the position of fixed tube is stable and can stably fix the outer layer pipe in the inside of outer layer pipe, only need to rotate circular ring when installing, then press the fixed tube and make the clamping groove move to the clamping block, and the clamping block is clamped into the clamping groove, and the position of side plate can be positioned, and the position of fixed tube can be positioned, and assembly is completed, when disassembling, the clamping block is taken out from the clamping groove, and the fixed tube can be taken down, and the components in the inside of outer layer pipe can be taken out, and maintenance work is carried out, effectively solve the problem that the limiting bolt is taken down by twisting two rotating blocks for many times when installing and disassembling in the background art, the operation steps are more complicated, the operation time is increased to a certain extent, the work efficiency is reduced, and the overall progress of maintenance work is influenced, and then realize simple operation, convenient assembly and disassembly, can effectively reduce the operation time, improve the work efficiency, and guarantee the overall progress of maintenance work.

[0008] Preferably, the outer wall of the circular ring is fixedly connected with a handle.

[0009] Preferably, the fixed tube is fixedly connected with an exhaust pipe on the side away from the outer layer pipe.

[0010] Preferably, the inside of the outer layer pipe is provided with an inner layer pipe, and the inner layer pipe is fixedly connected with a second sealing ring on the side close to the air inlet pipe.

[0011] Preferably, the inner wall of the inner layer pipe is fixedly connected with a plurality of guide plates, and the guide plates are arranged obliquely.

[0012] Preferably, the inner layer pipe is fixedly connected with a positioning ring on the outer wall of the end close to the air inlet pipe, the outer wall of the positioning ring is provided with two positioning grooves, the positioning grooves are provided with positioning plates, and the positioning plates are fixedly connected with the inner wall of the air inlet pipe.

[0013] Preferably, the outer wall of the inner layer pipe is sleeved with first sound insulation cotton, the first sound insulation cotton is sleeved with a sleeve pipe, the sleeve pipe is sleeved on the inner layer pipe, the sleeve pipe is arranged on the side of the fixed pipe close to the air inlet pipe, and the sleeve pipe is sleeved with second sound insulation cotton.

[0014] The utility model discloses the beneficial effects are:

[0015] Because adopt the technical means that quick -release mechanism fixes the position of fixed pipe, so the position of fixed pipe is stable and can stably fix the outer layer pipe in the inside of outer layer pipe, only need to rotate the ring when installing, then press fixed pipe and make the clamping groove move to the clamping block, and the clamping block is clamped into the clamping groove, and the position of the side plate can be limited, so that the position of the fixed pipe can be limited, and the assembly is completed, when disassembling, the clamping block is taken out from the clamping groove, and the fixed pipe can be disassembled, and the components in the inside of the outer layer pipe can be taken out, and the maintenance work is carried out, effectively solve the problem that the limiting bolt is taken down by twisting two rotating blocks for many times when installing and disassembling in the background art, the operation steps are more complicated, the operation time is increased to a certain extent, the work efficiency is reduced, and the overall progress of the maintenance work is influenced, and further realize simple operation, convenient assembly and disassembly, can effectively reduce the operation time, improve the work efficiency, and guarantee the overall progress of the maintenance work. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A three-dimensional structure schematic view of the sound insulation protective device for oxygen exhaust of the nitrogen making machine is provided for the utility model;

[0017] Figure 2 A cross-sectional structure schematic view of the sound insulation protective device for oxygen exhaust of the nitrogen making machine is provided for the utility model;

[0018] Figure 3 A cross-sectional structure schematic view of the sound insulation protective device for oxygen exhaust of the nitrogen making machine is provided for the utility model;

[0019] Figure 4 A sleeve pipe cross-sectional structure schematic view of the sound insulation protective device for oxygen exhaust of the nitrogen making machine is provided for the utility model;

[0020] Figure 5 An inner layer pipe cross-sectional structure schematic view of the sound insulation protective device for oxygen exhaust of the nitrogen making machine is provided for the utility model;

[0021] Figure 6 A local structure schematic view of the sound insulation protective device for oxygen exhaust of the nitrogen making machine is provided for the utility model;

[0022] Figure 7 A local structure schematic view of the sound insulation protective device for oxygen exhaust of the nitrogen making machine is provided for the utility model;

[0023] Figure 8 A partial further development of the structure of the noise reduction device for the nitrogen generator is shown in the schematic view.

[0024] In the figure: 1, air inlet pipe; 2, outer tube; 3, first sealing ring; 4, fixed tube; 5, side plate; 6, clamping groove; 7, slide rail; 8, sliding block; 9, circular ring; 10, clamping block; 11, first fixed plate; 12, second fixed plate; 13, spring; 15, handle; 16, exhaust pipe; 17, second sealing ring; 18, inner tube; 19, guide plate; 20, positioning ring; 21, positioning groove; 22, positioning plate; 23, first sound insulation cotton; 24, sleeve; 25, second sound insulation cotton. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0026] Reference Figures 1-8The utility model relates to an oxygen exhaust silencing protection device of nitrogen generator, including air inlet pipe 1, one side of air inlet pipe 1 is fixedly connected with outer tube 2, and the first sealing ring 3 is arranged on the side away from air inlet pipe 1 of outer tube 2, and the first sealing ring 3 is fixedly connected with fixed tube 4 on the side away from outer tube 2, and the outer wall of fixed tube 4 is fixedly connected with two side plates 5, and the clamping groove 6 is set up in the side away from each other of two side plates 5, and the clamping block 10 is set up in the clamping groove 6, and the outer wall of two clamping blocks 10 is fixedly connected with same circular ring 9, and the inner wall of circular ring 9 is fixedly connected with two sliding blocks 8, and two sliding blocks 8 are all sleeved with slide rail 7, and the sliding block 8 is connected with slide rail 7, and two slide rails 7 are all fixedly connected with the outer wall of outer tube 2, and the outer wall of circular ring 9 is fixedly connected with first fixed plate 11 and second fixed plate 12, and second fixed plate 12 is fixedly connected with outer tube 2, and first fixed plate 11 and second fixed plate 12 are all fixedly connected with same spring 13 on the side close to each other, because the technical means of quick release mechanism is used to fix the position of fixed tube, so that the position of fixed tube is stable, and the outer tube can be stably fixed in the inside of outer tube, when installing, only need to rotate circular ring, then press fixed tube to make clamping groove move to clamping block, and the clamping block is clamped in the clamping groove, so that the position of side plate can be limited, and the position of fixed tube can be limited, and assembly is completed, when disassembling, the clamping block is taken out from the clamping groove, and then the fixed tube can be disassembled, and the components in the inside of outer tube can be taken out, and maintenance work is carried out, effectively solve the problem that in the background art, when installing and disassembling, need to twist two rotating blocks to take down the limiting bolt for many times, the operation steps are more complicated, the operation time is increased to a certain extent, the work efficiency is reduced, and the overall progress of maintenance work is influenced, and then realize simple operation, convenient assembly and disassembly, can effectively reduce the operation time, improve the work efficiency, and guarantee the overall progress of maintenance work.

[0027] In the utility model, the outer wall of circular ring 9 is fixedly connected with handle 15.

[0028] In the utility model, the fixed tube 4 is fixedly connected with exhaust pipe 16 on the side away from outer tube 2.

[0029] In the utility model, the inside of outer tube 2 is provided with inner tube 18, and the second sealing ring 17 is fixedly connected with inner tube 18 on the side close to air inlet pipe 1, and the second sealing ring 17 is tightly attached to the inner wall of outer tube 2 after assembly is completed, and is sealed, and the discharged oxygen can smoothly enter the inside of inner tube 18.

[0030] The utility model discloses a plurality of guide plates 19 are fixedly connected to the inner wall of inner layer pipe 18, and the guide plate 19 of the both ends inside the inner layer pipe 18 is symmetrically set, and the high -speed oxygen is guided by guide plate 19 when entering the inner layer pipe 18, and the flow rate of oxygen is reduced, and the sound is collided and reflected multiple times between guide plate, can effectively dissipate sound energy, makes noise level further reduce, and guide plate 19 is obliquely set.

[0031] The utility model discloses a positioning ring 20 is fixedly connected to the outer wall of the one end of inner layer pipe 18 close to air inlet pipe 1, and the outer wall of positioning ring 20 is seted with two locating grooves 21, and the locating groove 21 is seted with the locating plate 22, and the locating plate 22 is fixedly connected to the inner wall of air inlet pipe 1.

[0032] The utility model discloses that the outer wall of inner layer pipe 18 is sleeved with first sound insulation cotton 23, and the first sound insulation cotton 23 is sleeved with sleeve pipe 24, and the sleeve pipe 24 is sleeved in inner layer pipe 18, and the sleeve pipe 24 is set on the one side of fixed pipe 4 close to air inlet pipe 1, and the sleeve pipe 24 is sleeved with second sound insulation cotton 25, and the sound insulation is carried out through first sound insulation cotton 23 and second sound insulation cotton 25, and the noise propagation is reduced.

[0033] Working principle: when using, connect the air inlet pipe 1 with the oxygen exhaust pipe of the nitrogen making machine, so that the discharged oxygen can enter into the inner layer pipe 18 through the air inlet pipe 1, the oxygen will continue to move along the guide plate 19, guided by the guide plate 19, reduce the flow rate of oxygen, also collide and reflect multiple times between the guide plates, which can effectively dissipate sound energy and further reduce noise level, the oxygen is finally discharged through the exhaust pipe 16, when assembling the device, first, the first sound insulation cotton 23 is sleeved on the inner layer pipe 18, the inner layer pipe 18 is placed in the outer layer pipe 2, the positioning groove 21 is aligned with the positioning plate 22, the positioning ring 20 is sleeved on the positioning plate 22 for positioning, then the sleeve pipe 24 is sleeved on the first sound insulation cotton 23 and the inner layer pipe 18, the second sound insulation cotton 25 is sleeved on the sleeve pipe 24, one end of the fixed pipe 4 is inserted into the outer layer pipe 2, so that the first sealing ring 3 contacts with the outer layer pipe 2, the handle 15 is moved, the handle 15 will drive the circular ring 9 to rotate, the circular ring 9 will drive the sliding block 8 to move along the slide rail 7, the circular ring 9 will also drive the clamping block 10 to move, the circular ring 9 will also drive the first fixed plate 11 to move, the first fixed plate 11 will extrude the spring 13 to make the spring 13 contract, the fixed pipe 4 is pressed to move, the fixed pipe 4 will drive the side plate 5 to move, so that the clamping groove 6 on the side plate 5 moves to the position of the clamping block 10, the handle 15 is released, the contracted spring 13 will stretch out, so that the first fixed plate 11 returns to the initial position, that is, the circular ring 9 can be reversely rotated, so that the clamping block 10 can return to the initial position, the clamping block 10 will move into the clamping groove 6, so that the position of the side plate 5 can be limited, and the position of the fixed pipe 4 can be limited, the fixed pipe 4 contacts with the sleeve pipe 24, so that the sleeve pipe 24 can stably be in the outer layer pipe 2, the positions of the first sound insulation cotton 23 and the second sound insulation cotton 25 are stable, so that the device can be normally used, when disassembling, the handle 15 is moved again to make the circular ring 9 rotate, so that the clamping block 10 moves out of the clamping groove 6, so that the fixed pipe 4 can be disassembled, and the components in the outer layer pipe 2 can be taken out, the first sound insulation cotton 23 and the second sound insulation cotton 25 can be replaced, and after replacement, the same steps can be used for reinstallation.

[0034] The above merely describes a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A soundproofing device for oxygen exhaust of a nitrogen generator, comprising an air inlet pipe (1), characterized in that, The side of the air inlet pipe (1) is fixedly connected with an outer pipe (2), the outer pipe (2) is provided with a first sealing ring (3) away from the air inlet pipe (1), the first sealing ring (3) is fixedly connected with a fixed pipe (4) away from the outer pipe (2), the outer wall of the fixed pipe (4) is fixedly connected with two side plates (5), the clamping grooves (6) are formed in the sides away from each other of the two side plates (5), the clamping blocks (10) are arranged in the clamping grooves (6), the outer walls of the two clamping blocks (10) are fixedly connected with the same circular ring (9), the inner wall of the circular ring (9) is fixedly connected with two sliding blocks (8), the sliding blocks (8) are sleeved with sliding rails (7), the sliding blocks (8) are slidably connected with the sliding rails (7), the sliding rails (7) are fixedly connected with the outer wall of the outer pipe (2), the outer wall of the circular ring (9) is fixedly connected with a first fixed plate (11) and a second fixed plate (12), the second fixed plate (12) is fixedly connected with the outer pipe (2), the first fixed plate (11) and the second fixed plate (12) are fixedly connected with the same spring (13) on the sides close to each other.

2. The noise protection device for oxygen removal of a nitrogen generator according to claim 1, characterized in that The outer wall of the circular ring (9) is fixedly connected with a handle (15).

3. The noise protection device for oxygen removal of a nitrogen generator according to claim 1, characterized in that, The fixed pipe (4) is fixedly connected with an exhaust pipe (16) away from the outer pipe (2).

4. The noise protection device for oxygen removal of a nitrogen generator according to claim 3, characterized in that, The inner wall of the inner pipe (18) is fixedly connected with a second sealing ring (17) close to the air inlet pipe (1).

5. The noise protection device for oxygen removal of a nitrogen generator according to claim 4, characterized in that The inner wall of the inner pipe (18) is fixedly connected with a plurality of guide plates (19), and the guide plates (19) are arranged obliquely.

6. The noise protection device for oxygen removal of a nitrogen generator according to claim 5, characterized in that The outer wall of the inner pipe (18) is fixedly connected with a positioning ring (20) close to the air inlet pipe (1), the outer wall of the positioning ring (20) is provided with two positioning grooves (21), the positioning grooves (21) are provided with positioning plates (22), and the positioning plates (22) are fixedly connected with the inner wall of the air inlet pipe (1).

7. The noise abatement device of claim 6, wherein, The outer wall of the inner pipe (18) is sleeved with a first sound insulation cotton (23), the first sound insulation cotton (23) is sleeved with a sleeve pipe (24), the sleeve pipe (24) is sleeved on the inner pipe (18), the sleeve pipe (24) is arranged on the side of the fixed pipe (4) close to the air inlet pipe (1), and the sleeve pipe (24) is sleeved with a second sound insulation cotton (25).

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