Flow control instrument with noise reduction structure

Abstract

The utility model discloses a flow control instrument with a noise reduction structure, which comprises a lower hollow sound insulation cover, two groups of sealing washers are embedded at the upper end of the lower hollow sound insulation cover, an upper hollow sound insulation cover is mounted at the upper end of the other group of sealing washers, and a flow control instrument main body is placed on the inner side of the upper hollow sound insulation cover. A connecting pipe is installed on the inner side of the flow control instrument body. According to the flow control instrument with the noise reduction structure, the upper hollow sound insulation cover is pushed reversely, so that the fixing plate is rotated into the inner side of the butt joint frame, the tightening elastic rope pulls the plug pin to move reversely under the elastic effect, and therefore the plug pin is clamped into the inner side of the limiting hole, and noise reduction is achieved. The purpose of conveniently fixing the lower hollow soundproof cover and the upper hollow soundproof cover is achieved, so that the lower hollow soundproof cover and the upper hollow soundproof cover play a role in reducing noise on the flow control instrument main body, the flow control instrument is convenient to operate and install by a single person, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flow control instruments, in particular to a flow control instrument with a noise reduction structure. Background Art

[0002] Flow meters are divided into differential pressure flow meters, rotor flow meters, throttling flow meters, slit flow meters, positive displacement flow meters, electromagnetic flow meters, ultrasonic flow meters, etc. Flow control instruments will produce certain sounds when in use, and noise reduction is required in specific environments.

[0003] The utility model with patent number CN221404390U discloses a multi-stage noise reduction device for a flow control instrument, which belongs to the technical field of flow meter noise reduction. The device includes a flow control instrument body, a data display screen, a first pipe and a second pipe. The data display screen is located at the upper end of the flow control instrument body. The first pipe and the second pipe are respectively placed at the flanges on both sides of the flow control instrument body. The external covers of the flow control instrument body, the first pipe and the second pipe include a first hollow soundproof cover and a second hollow soundproof cover. The inner wall of the first hollow soundproof cover is installed with a first porous soundproof board. The double-layer design of the hollow soundproof cover can play a role in sound insulation and protection. The inner wall of the hollow soundproof cover is installed with a porous soundproof board. A sandwich structure is also formed between the porous soundproof board and the hollow soundproof cover. The porous soundproof board covers the flow control instrument body. The design of the multi-layer sound insulation structure realizes the noise reduction of the equipment. An observation window is opened on the hollow soundproof cover. The sound insulation cotton and the sound-absorbing board at the observation window realize noise reduction.

[0004] However, the utility model still has some shortcomings. For example, during installation, since the first hollow sound insulation cover and the second hollow sound insulation cover need to be aligned with each other, and four sets of screws need to be screwed into the four corners of the first hollow sound insulation cover and the second hollow sound insulation cover, two workers are required to cooperate with each other for installation, resulting in low installation efficiency. Therefore, a solution that can alleviate the above problems is urgently needed. Utility Model Content

[0005] The main purpose of the utility model is to provide a flow control instrument with a noise reduction structure, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A flow control instrument with a noise reduction structure comprises a lower hollow soundproof cover, wherein the upper end of the lower hollow soundproof cover is inlaid with two groups of sealing gaskets, the upper end of the other group of sealing gaskets is mounted on the upper end of the upper hollow soundproof cover, a flow control instrument body is placed inside the upper hollow soundproof cover, a connecting pipe is mounted inside the inner side of the flow control instrument body, a fixing plate is fixedly connected to the front end of the upper hollow soundproof cover, a docking frame is fixedly connected to the front end of the lower hollow soundproof cover, a limiting hole is formed at one end of the fixing plate, a sliding hole is formed at one end of the docking frame, a latch is slidably connected to the inner side of the sliding hole, a tightening elastic rope is mounted on the inner side of the latch, and a slide is slidably connected to the outer side of the tightening elastic rope near the front side of the latch, a connecting plate is fixedly connected to the rear end of the lower hollow soundproof cover, a support is fixedly connected to the upper end of the connecting plate, a rotating shaft is movably connected to the inner side of the support, a corresponding plate is fixedly connected to the rear end of the upper hollow soundproof cover, and a fixed block is fixedly connected to the lower end of the corresponding plate.

[0008] Preferably, the lower hollow soundproof cover and the upper hollow soundproof cover clamp the connecting pipe in the middle through two sets of sealing gaskets, the main material of the two sets of sealing gaskets is rubber, the lower part of the fixing plate is located on the inner side of the docking frame, and the main shape of the fixing plate is L-shaped.

[0009] Preferably, the limiting hole corresponds to the sliding hole, one end of the latch is a sloped surface, and the outer side of the latch close to the sliding hole is slidably connected to the inner side of the limiting hole.

[0010] Preferably, the rear end of the tightening elastic rope is installed on the front end of the lower hollow sound insulation cover near the side of the docking frame, one end of the slide is fixedly connected to one end of the docking frame, and one end of the fixed block is fixedly connected to one end of the rotating shaft.

[0011] Preferably, a perspective groove is provided at the front end of the upper hollow soundproof cover, a glass plate is installed inside the perspective groove, and one end of the connecting pipe is fixedly connected to a mounting ring.

[0012] Preferably, there are two groups of mounting rings, and the axis lines between the connecting pipe and the two groups of mounting rings are located on the same straight line.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] By pulling the upper hollow sound insulation cover, the opening between the lower hollow sound insulation cover and the upper hollow sound insulation cover becomes larger, and then the lower hollow sound insulation cover and the upper hollow sound insulation cover are clamped on the outside of the flow control instrument body, and the upper hollow sound insulation cover is pushed in the reverse direction, so that the fixing plate is rotated to the inner side of the docking frame, and the tightening elastic rope pulls the pin in the reverse direction under the elastic action, so that the pin is clamped in the inner side of the limited hole, which can facilitate the fixation of the lower hollow sound insulation cover and the upper hollow sound insulation cover, so that the lower hollow sound insulation cover and the upper hollow sound insulation cover have a noise reduction effect on the flow control instrument body, thereby facilitating single-person installation and improving installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a flow control instrument with a noise reduction structure according to the present invention;

[0016] Figure 2 This is a schematic diagram of the overall opening structure of a flow control instrument with a noise reduction structure according to the present invention;

[0017] Figure 3 This is a schematic diagram of the partial explosion structure of a flow control instrument with a noise reduction structure according to the present invention;

[0018] Figure 4 This is a schematic diagram of the enlarged structure of part A of a flow control instrument with a noise reduction structure according to the present invention.

[0019] In the figure: 1. Lower hollow soundproof cover; 2. Sealing gasket; 3. Upper hollow soundproof cover; 4. Flow control instrument body; 5. Connecting pipe; 6. Fixing plate; 7. Docking frame; 8. Limiting hole; 9. Sliding hole; 10. Pin; 11. Tightening elastic rope; 12. Slide; 13. Connecting plate; 14. Support member; 15. Rotating shaft; 16. Corresponding plate; 17. Fixing block; 18. See-through slot; 19. Glass plate; 20. Mounting ring. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figure 1-4As shown, a flow control instrument with a noise reduction structure includes a lower hollow soundproof cover 1, the upper end of the lower hollow soundproof cover 1 is inlaid with two groups of sealing gaskets 2, the upper end of the other group of sealing gaskets 2 is installed with an upper hollow soundproof cover 3, the inner side of the upper hollow soundproof cover 3 is placed with a flow control instrument body 4, the inner side of the flow control instrument body 4 is installed with a connecting pipe 5, the front end of the upper hollow soundproof cover 3 is fixedly connected with a fixing plate 6, the front end of the lower hollow soundproof cover 1 is fixedly connected with a docking frame 7, one end of the fixing plate 6 is opened with a limiting hole 8, and the docking frame A sliding hole 9 is provided at one end of 7, and a latch 10 is slidably connected to the inner side of the sliding hole 9, and a tightening elastic rope 11 is installed on the inner side of the latch 10. The outer side of the tightening elastic rope 11 is slidably connected to the front side of the latch 10 near the front side of the slide 12, the rear end of the lower hollow sound insulation cover 1 is fixedly connected to the connecting plate 13, the upper end of the connecting plate 13 is fixedly connected to the support 14, and the inner side of the support 14 is movably connected to the rotating shaft 15, the rear end of the upper hollow sound insulation cover 3 is fixedly connected to the corresponding plate 16, and the lower end of the corresponding plate 16 is fixedly connected to the fixed block 17.

[0022] In this embodiment, the lower hollow soundproof cover 1 and the upper hollow soundproof cover 3 sandwich the connecting pipe 5 in the middle through two sets of sealing gaskets 2. The main material of the two sets of sealing gaskets 2 is rubber. The lower part of the fixed plate 6 is located on the inner side of the docking frame 7. The main body of the fixed plate 6 is L-shaped. The limiting hole 8 corresponds to the sliding hole 9. One end of the pin 10 is a sloped surface. The outer side of the pin 10 is close to the sliding hole 9 and is slidably connected to the inner side of the limiting hole 8. The rear end of the tightening elastic rope 11 is installed at the front end of the lower hollow soundproof cover 1 near the side of the docking frame 7. One end of the slide 12 is fixedly connected to one end of the docking frame 7, and one end of the fixed block 17 is fixedly connected to one end of the rotating shaft 15.

[0023] Specifically, the lower hollow soundproof cover 1 and the upper hollow soundproof cover 3 are clamped to the outside of the flow control instrument body 4, and the upper hollow soundproof cover 3 is pushed in the opposite direction, so that the upper hollow soundproof cover 3 drives the fixing plate 6 to rotate, and the fixing plate 6 is rotated to the inside of the docking frame 7, and the fixing plate 6 contacts the slope surface of the latch 10, so that the fixing plate 6 pushes the latch 10 to move outward, and the latch 10 stretches and tightens the elastic rope 11, at this time, the limiting hole 8 corresponds to the sliding hole 9, and the fixing plate 6 is rotated to the inside of the docking frame 7, and the fixing plate 6 contacts the slope surface of the latch 10, so that the fixing plate 6 pushes the latch 10 to move outward, and the latch 10 stretches and tightens the elastic rope 11, and the limiting hole 8 corresponds to the sliding hole 9, and the fixing plate 6 is rotated to the inside of the docking frame 7 ... Tightening the elastic rope 11 pulls the pin 10 to move in the opposite direction under the action of elasticity, so that the pin 10 is stuck in the inner side of the limiting hole 8, and the lower hollow sound insulation cover 1 and the upper hollow sound insulation cover 3 are fixed, so that the lower hollow sound insulation cover 1 and the upper hollow sound insulation cover 3 have a sound insulation effect on the flow control instrument main body 4, thereby making the lower hollow sound insulation cover 1 and the upper hollow sound insulation cover 3 have a noise reduction effect on the flow control instrument main body 4, thereby facilitating single-person operation and installation, and improving installation efficiency.

[0024] In this embodiment, a transparent groove 18 is provided at the front end of the upper hollow soundproof cover 3, and a glass plate 19 is installed on the inner side of the transparent groove 18. One end of the connecting pipe 5 is fixedly connected to a mounting ring 20. There are two groups of mounting rings 20, and the axis lines between the connecting pipe 5 and the two groups of mounting rings 20 are located on the same straight line.

[0025] Specifically, the flow control instrument body 4 can be clearly observed through the glass plate 19, thereby facilitating observation of the fluid flow.

[0026] Working principle:

[0027] During installation, first hold the lower hollow sound insulation cover 1 and pull the upper hollow sound insulation cover 3, so that the upper hollow sound insulation cover 3 drives the corresponding plate 16 to rotate, and the corresponding plate 16 passes through the fixed block 17 and rotates with the support 14 as the axis. At this time, there is a larger opening between the lower hollow sound insulation cover 1 and the upper hollow sound insulation cover 3, and then the lower hollow sound insulation cover 1 and the upper hollow sound insulation cover 3 are clamped to the outside of the flow control instrument body 4, and then the upper hollow sound insulation cover 3 is pushed in the opposite direction, so that the upper hollow sound insulation cover 3 drives the fixed plate 6 to rotate, and the fixed plate 6 is rotated to the inner side of the docking frame 7, and the fixed plate 6 contacts the slope surface of the latch 10, so that the fixed plate 6 pushes the latch 10 to move outward, and the latch 10 stretches and tightens the elastic rope 11. At this time, the limiting hole 8 corresponds to the sliding hole 9, and the tightening elastic rope 11 pulls the latch 10 in the opposite direction under the elastic action, so that the latch 10 is clamped on the inner side of the limiting hole 8. The cam 11 of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A flow control instrument with a noise reduction structure, comprising a lower hollow soundproof cover (1), characterized in that: The upper end of the lower hollow soundproof cover (1) is inlaid with two groups of sealing gaskets (2), and the upper end of the other group of sealing gaskets (2) is installed with an upper hollow soundproof cover (3), the inner side of the upper hollow soundproof cover (3) is placed with a flow control instrument body (4), and the inner side of the flow control instrument body (4) is installed with a connecting pipe (5), the front end of the upper hollow soundproof cover (3) is fixedly connected with a fixing plate (6), and the front end of the lower hollow soundproof cover (1) is fixedly connected with a docking frame (7), one end of the fixing plate (6) is provided with a limiting hole (8), and one end of the docking frame (7) is provided with a sliding hole (9), and the sliding hole (9) is provided. The inner side of the hole (9) is slidably connected to a latch (10), the inner side of the latch (10) is installed with a tightening elastic rope (11), the outer side of the tightening elastic rope (11) is slidably connected to a slide (12) near the front side of the latch (10), the rear end of the lower hollow soundproof cover (1) is fixedly connected to a connecting plate (13), the upper end of the connecting plate (13) is fixedly connected to a support member (14), the inner side of the support member (14) is movably connected to a rotating shaft (15), the rear end of the upper hollow soundproof cover (3) is fixedly connected to a corresponding plate (16), and the lower end of the corresponding plate (16) is fixedly connected to a fixed block (17).

2. The flow control instrument with a noise reduction structure according to claim 1, characterized in that: The lower hollow soundproof cover (1) and the upper hollow soundproof cover (3) sandwich the connecting pipe (5) in the middle through two sets of sealing gaskets (2), the main body material of the two sets of sealing gaskets (2) is rubber, the lower part of the fixing plate (6) is located on the inner side of the docking frame (7), and the main body shape of the fixing plate (6) is L-shaped.

3. The flow control instrument with a noise reduction structure according to claim 1, characterized in that: The limiting hole (8) corresponds to the sliding hole (9), one end of the latch (10) is a sloped surface, and the outer side of the latch (10) close to the sliding hole (9) is slidably connected to the inner side of the limiting hole (8).

4. The flow control instrument with a noise reduction structure according to claim 1, characterized in that: The rear end of the tightening elastic rope (11) is installed at the front end of the lower hollow soundproof cover (1) near the side of the docking frame (7), one end of the slide (12) is fixedly connected to one end of the docking frame (7), and one end of the fixed block (17) is fixedly connected to one end of the rotating shaft (15).

5. The flow control instrument with a noise reduction structure according to claim 1, characterized in that: A perspective groove (18) is provided at the front end of the upper hollow soundproof cover (3), a glass plate (19) is installed inside the perspective groove (18), and a mounting ring (20) is fixedly connected to one end of the connecting pipe (5).

6. The flow control instrument with a noise reduction structure according to claim 5, characterized in that: There are two groups of mounting rings (20), and the axis lines between the connecting pipe (5) and the two groups of mounting rings (20) are located on the same straight line.

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