Noise reduction device for oxygen production station

Abstract

This utility model relates to the field of noise reduction devices, specifically a noise reduction device for oxygen production stations. It includes two housings, each with a sound-insulating plate inside. A first spring is fixedly connected between the sound-insulating plate and the inner wall of the housing. First connecting boxes are fixedly connected to both sides of the upper housing. Through the cooperation of structures such as an L-shaped connecting plate, a moving plate, a toothed groove, a transmission wheel, teeth, a connecting rod, a fixed plate, a pull rod, a connecting groove, a locking block, a locking groove, and a first screw, the synchronous opening and closing of both sides can be achieved through single-sided operation. In single-person operation, the operator only needs to apply pulling force to one side of the pull rod; the linkage of the remaining structures will drive the other side to move in tandem. No additional personnel are required to fix the noise reduction device to the outside of the exhaust pipe, greatly improving the work efficiency of the staff and significantly reducing the company's labor costs.

Description

Technical Field

[0001] This utility model relates to the field of noise reduction device technology, specifically a noise reduction device for oxygen production stations. Background Technology

[0002] The oxygen production station system mainly consists of a blower, an air compressor, a switching valve, an adsorber, and an oxygen balance tank. After the raw material air passes through the inlet filter to remove dust particles, it is pressurized to 0.3-0.5 barg by the blower and then enters one of the adsorbers for further processing.

[0003] In the prior art, CN218094885U discloses a noise reduction device for oxygen production stations. However, in actual use, during installation, operators need to pull both pull rods simultaneously to open the two fixing components. After the air outlet pipe is in place, the pull rods are released to complete the alignment and fixing. This requires the cooperation of multiple workers, which directly increases the labor input cost. At the same time, in the scenario of equipment maintenance or replacement of noise reduction devices, the shorter the downtime, the less impact on production. However, the existing technology's rigid requirement for multiple-person collaboration will take up extra time due to personnel allocation and on-site coordination, which seriously restricts the installation efficiency. In view of this, we propose a noise reduction device for oxygen production stations to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a noise reduction device for oxygen production stations to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a noise reduction device for oxygen production stations, comprising two housings, each housing having a sound insulation plate inside, a first spring fixedly connected between the sound insulation plate and the inner wall of the housing, a first connecting box fixedly connected to both sides of the upper housing, and a second connecting box fixedly connected to both sides of the lower housing, both the first and second connecting boxes being hollow inside, a transmission wheel rotatably connected to the interior of the second connecting box via a shaft, two movable plates on both sides of the transmission wheel, two sets of teeth fixedly connected to the surface of the transmission wheel, grooves on the side of each of the two movable plates facing the transmission wheel, the grooves and teeth being compatible, an L-shaped connecting plate fixedly connected to the opposite end of each of the two movable plates, both of the L-shaped connecting plates slidingly penetrating through the interior of the second connecting box, a connecting rod slidably connected inside the first connecting box, both ends of the connecting rod slidingly penetrating through the interior of the first connecting box, and a driving assembly provided on the surface of the sound insulation plate.

[0006] Preferably, the drive assembly includes a pull rod, which is fixedly connected to a sound insulation plate. The end of the pull rod away from the sound insulation plate slides through the interior of the housing. Fixing plates are fixedly connected to both sides of the pull rod. The upper ends of the two connecting rods are fixedly connected to the two upper fixing plates, and the two lower L-shaped connecting plates are fixedly connected to the two lower fixing plates.

[0007] Preferably, the upper surface of the L-shaped connecting plate on the upper side is provided with a mating groove, the protrusion at the lower end of the mating rod is adapted to the mating groove, the surface of the protrusion at the lower end of the mating rod is provided with a slot, and a locking block is slidably connected inside the mating groove, the locking block and the slot being adapted to each other.

[0008] Preferably, the surface of the card block is rotatably connected to a first screw, the threaded part of which extends through the interior of the upper L-shaped connecting plate.

[0009] Preferably, two guide plates are fixedly connected to opposite sides of the two movable plates, two guide rods are fixedly connected inside the second connecting box, the two guide plates on both sides are slidably sleeved on the outside of the two guide rods, and a second spring is fixedly connected between opposite sides of the two guide plates and the inner wall of the second connecting box, the second spring being movably sleeved on the outside of the guide rods.

[0010] Preferably, soundproof chambers are provided inside the side panels of both the first and second connecting boxes.

[0011] Preferably, a horizontal plate is provided on the outside of the second connecting box, and a second screw is threaded inside the horizontal plate. The second screw is rotatably connected to the surface of the second connecting box, and a locking rod is fixedly connected to the side surface of the horizontal plate facing the second connecting box. The locking rod slides through into the cavity inside the second connecting box.

[0012] Preferably, both of the movable plates have locking grooves on their surfaces, and the locking grooves are compatible with the locking rods.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model utilizes the cooperation between structures such as an L-shaped connecting plate, a moving plate, a toothed groove, a transmission wheel, teeth, a connecting rod, a fixing plate, a pull rod, a connecting groove, a locking block, a locking groove, and a first screw to achieve synchronous opening and closing of both sides of the structure through single-sided operation. When operated by a single person, the operator only needs to apply a pulling force to one side of the pull rod, and the other side of the structure can be driven to move in coordination through the linkage of the other structures. No additional personnel are required to fix the noise reduction device to the outside of the air outlet pipe, which greatly improves the work efficiency of the staff and significantly reduces the labor costs of the enterprise.

[0014] 2. This utility model further ensures the stability of the internal structure, reduces noise generation, and improves the overall practicality of the device through the cooperation between the horizontal plate, the second screw, the locking rod, and the locking groove. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a noise reduction device for oxygen production stations according to the present invention; Figure 2 This is a schematic diagram of the upper shell of this utility model; Figure 3 This is a schematic diagram of the structure of the lower shell of this utility model; Figure 4 This is a cross-sectional view of the second connecting box of this utility model; Figure 5 This is a cross-sectional view of the docking groove of this utility model.

[0016] In the diagram: 1. Housing; 2. Sound insulation plate; 3. First spring; 4. First connecting box; 5. Second connecting box; 6. Transmission wheel; 7. Moving plate; 8. Tooth; 9. Tooth groove; 10. L-shaped connecting plate; 11. Connecting rod; 12. Fixing plate; 13. Pull rod; 14. Connecting groove; 15. Locking block; 16. Locking groove; 17. First screw; 18. Guide plate; 19. Guide rod; 20. Second spring; 21. Sound insulation chamber; 22. Horizontal plate; 23. Second screw; 24. Locking rod; 25. Locking groove. Detailed Implementation

[0017] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0018] Please see Figures 1-5As shown, a noise reduction device for oxygen production stations includes two housings 1. Each housing 1 has a sound-insulating plate 2 inside. A first spring 3 is fixedly connected between the sound-insulating plate 2 and the inner wall of the housing 1. First connecting boxes 4 are fixedly connected to both sides of the upper housing 1, and second connecting boxes 5 are fixedly connected to both sides of the lower housing 1. Both the first and second connecting boxes 4 and 5 are hollow. A transmission wheel 6 is rotatably connected to the interior of the second connecting box 5 via a shaft. Two movable plates 7 are arranged on both sides of the transmission wheel 6. Two sets of teeth 8 are fixedly connected to the surface of the transmission wheel 6. Grooves 9 are formed on the side of each movable plate 7 facing the transmission wheel 6, and the grooves 9 and teeth 8 are matched. L-shaped connecting plates 10 are fixedly connected to opposite ends of each movable plate 7. Both L-shaped connecting plates 10 slide through the interior of the second connecting box 5. A connecting rod 11 is slidably connected inside the first connecting box 4, with both ends of the connecting rod 11 sliding through the interior of the first connecting box 4. A drive assembly is provided on the surface of the sound-insulating plate 2.

[0019] In the above embodiments, the two housings 1 can be connected by some common detachable fixing methods such as snap-fit ​​or bolts. Since these are conventional technologies, they will not be described in detail here.

[0020] The drive assembly includes a pull rod 13, which is fixedly connected to the sound insulation plate 2. The end of the pull rod 13 away from the sound insulation plate 2 slides through the interior of the housing 1. Fixing plates 12 are fixedly connected to both sides of the pull rod 13. The upper ends of the two connecting rods 11 are fixedly connected to the two upper fixing plates 12 respectively, and the two lower L-shaped connecting plates 10 are fixedly connected to the two lower fixing plates 12 respectively. When it is necessary to fix the sound insulation plate 2 to the outside of the air outlet pipe, pulling the pull rod 13 can drive the sound insulation plate 2 to move, thereby driving the two fixing plates 12 to move. The movement of the fixing plates 12 can drive the connecting rods 11 and the two lower L-shaped connecting plates 10 to move.

[0021] The upper surface of the upper L-shaped connecting plate 10 is provided with a mating groove 14. The protrusion at the lower end of the mating rod 11 is adapted to the mating groove 14. The surface of the protrusion at the lower end of the mating rod 11 is provided with a slot 16. A locking block 15 is slidably connected inside the mating groove 14. The locking block 15 is adapted to the slot 16.

[0022] The surface of the locking block 15 is rotatably connected to a first screw 17. The threaded rod of the first screw 17 passes through the interior of the upper L-shaped connecting plate 10. By rotating the first screw 17, the operator can drive the locking block 15 to slide inside the docking groove 14 and then lock it into the interior of the locking groove 16, thereby realizing the docking of the docking rod 11 and the upper L-shaped connecting plate 10.

[0023] Two guide plates 18 are fixedly connected to opposite surfaces of the two movable plates 7. Two guide rods 19 are fixedly connected inside the second connecting box 5. The two guide plates 18 on both sides are slidably sleeved on the outside of the two guide rods 19. A second spring 20 is fixedly connected between opposite surfaces of the two guide plates 18 and the inner wall of the second connecting box 5. The second spring 20 is movably sleeved on the outside of the guide rods 19. When the upper L-shaped connecting plate 10 moves, it can drive the right movable plate 7 to move. At this time, the left movable plate 7 can be driven to move by the cooperation between the tooth groove 9 and the tooth 8. The movement of the movable plate 7 can drive the movement of the guide plate 18. At this time, the second spring 20 will deform so that the movable plate 7 can be reset later.

[0024] The side panels of the first connecting box 4 and the second connecting box 5 are both provided with sound insulation chambers 21. The sound insulation chambers 21 are filled with sound-absorbing cotton, thereby reducing the noise generated inside the first connecting box 4 and the second connecting box 5.

[0025] In the above embodiments, the side plate of the housing 1 is also provided with sound-absorbing cotton, and the inner wall of the sound insulation plate 2 is embedded with sound-absorbing components. Since the above noise reduction methods are all known technologies in the art, they will not be described in detail here.

[0026] The second connecting box 5 has a horizontal plate 22 on its exterior. The interior of the horizontal plate 22 is threaded with a second screw 23. The second screw 23 is rotatably connected to the surface of the second connecting box 5. A locking rod 24 is fixedly connected to the side of the horizontal plate 22 facing the second connecting box 5. The locking rod 24 slides through the cavity inside the second connecting box 5. By rotating the second screw 23, the horizontal plate 22 can be moved, and by moving the horizontal plate 22, the locking rod 24 can be moved.

[0027] Both movable plates 7 have locking grooves 25 on their surfaces. The locking grooves 25 and locking rods 24 are compatible. After installation, the positions of the two movable plates 7 can be locked by the cooperation between the locking rods 24 and the locking grooves 25, thereby preventing them from shaking.

[0028] In the above embodiments, a telescopic base is also provided in conjunction with the housing 1, and the housing 1 consists of two sets, which are connected by an extension member to adjust the length of the noise reduction device and adapt to air outlet pipes of different lengths. For details, please refer to the prior art with announcement number CN218094885U. Since it is a conventional technical means in this field, it will not be described in detail here.

[0029] Working principle: The upper and lower shells 1 are fixedly connected by the operator. At this time, the protrusion on the lower side of the docking rod 11 will be inserted into the docking groove 14 opened on the surface of the upper L-shaped connecting plate 10. Subsequently, by rotating the first screw 17, the operator can drive the locking block 15 to slide inside the docking groove 14 and then lock it into the slot 16, so as to realize the docking of the docking rod 11 and the upper L-shaped connecting plate 10.

[0030] Then, the staff pulls the upper lever 13, which moves the sound insulation plate 2, thereby moving the two side fixing plates 12. The movement of the fixing plates 12 moves the connecting rod 11, which in turn moves the upper L-shaped connecting plate 10. When the upper L-shaped connecting plate 10 moves, it moves the right moving plate 7. At this time, the cooperation between the groove 9 and the tooth 8 moves the left moving plate 7. The movement of the moving plate 7 moves the guide plate 18. At this time, the second spring 20 will deform to facilitate the subsequent reset of the moving plate 7. When the left moving plate 7 moves, it moves the lower fixing plate 12 and other structures, ultimately achieving the synchronous opening of the two sound insulation plates 2. The device can then be moved to the outside of the air compressor outlet pipe. Afterward, releasing the lever 13 will allow the two sound insulation plates 2 to be held outside the outlet pipe. During installation, the staff can also pull the lower lever 13, choosing flexibly according to the actual usage.

[0031] After installation, rotating the second screw 23 will move the horizontal plate 22, which in turn will move the locking rod 24. The locking rod 24 and the locking groove 25 will lock the positions of the two moving plates 7 after installation, thus preventing them from shaking.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A noise reduction device for oxygen production stations, comprising two housings (1), characterized in that: Both housings (1) are equipped with sound insulation panels (2) inside. A first spring (3) is fixedly connected between the sound insulation panel (2) and the inner wall of the housing (1). A first connecting box (4) is fixedly connected to both sides of the upper housing (1), and a second connecting box (5) is fixedly connected to both sides of the lower housing (1). The interiors of the first connecting box (4) and the second connecting box (5) are hollow. A transmission wheel (6) is rotatably connected to the interior of the second connecting box (5) via a shaft. Two movable plates (7) are provided on both sides of the transmission wheel (6). Two sets of teeth (8) are fixedly connected to the surface of the two moving plates (7). The two moving plates (7) facing the transmission wheel (6) are provided with tooth grooves (9). The tooth grooves (9) and teeth (8) are adapted to each other. The opposite ends of the two moving plates (7) are fixedly connected with L-shaped connecting plates (10). The two L-shaped connecting plates (10) slide through the interior of the second connecting box (5). The interior of the first connecting box (4) is slidably connected with a docking rod (11). Both ends of the docking rod (11) slide through the interior of the first connecting box (4). The surface of the sound insulation plate (2) is provided with a drive assembly.

2. The noise reduction device for oxygen production stations according to claim 1, characterized in that: The drive assembly includes a pull rod (13), which is fixedly connected to a sound insulation plate (2). The end of the pull rod (13) away from the sound insulation plate (2) slides through the interior of the housing (1). Fixing plates (12) are fixedly connected to both sides of the pull rod (13). The upper ends of the two connecting rods (11) are fixedly connected to the two upper fixing plates (12) respectively. The two lower L-shaped connecting plates (10) are fixedly connected to the two lower fixing plates (12) respectively.

3. The noise reduction device for oxygen production stations according to claim 2, characterized in that: The upper surface of the L-shaped connecting plate (10) on the upper side is provided with a docking groove (14). The protrusion at the lower end of the docking rod (11) is adapted to the docking groove (14). The surface of the protrusion at the lower end of the docking rod (11) is provided with a slot (16). A locking block (15) is slidably connected inside the docking groove (14). The locking block (15) and the slot (16) are adapted to each other.

4. The noise reduction device for oxygen production stations according to claim 3, characterized in that: The surface of the card block (15) is rotatably connected to a first screw (17), and the threaded rod of the first screw (17) extends through the interior of the upper L-shaped connecting plate (10).

5. The noise reduction device for oxygen production stations according to claim 4, characterized in that: Two guide plates (18) are fixedly connected to opposite sides of the two movable plates (7). Two guide rods (19) are fixedly connected inside the second connecting box (5). The two guide plates (18) on both sides are slidably sleeved on the outside of the two guide rods (19). A second spring (20) is fixedly connected between opposite sides of the two guide plates (18) and the inner wall of the second connecting box (5). The second spring (20) is movably sleeved on the outside of the guide rods (19).

6. The noise reduction device for oxygen production stations according to claim 5, characterized in that: The first connecting box (4) and the second connecting box (5) both have soundproof chambers (21) inside their side panels.

7. The noise reduction device for oxygen production stations according to claim 6, characterized in that: The second connecting box (5) is provided with a horizontal plate (22) on the outside. The horizontal plate (22) is threaded with a second screw (23). The second screw (23) is rotatably connected to the surface of the second connecting box (5). A locking rod (24) is fixedly connected to the side surface of the horizontal plate (22) facing the second connecting box (5). The locking rod (24) slides through into the cavity inside the second connecting box (5).

8. The noise reduction device for oxygen production station according to claim 7, characterized in that: Both of the movable plates (7) have locking grooves (25) on their surfaces, and the locking grooves (25) are compatible with the locking rods (24).

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