External supporting mechanism of sound level meter

Abstract

The utility model relates to the technical field of sound level meters, in particular to a sound level meter external supporting mechanism which comprises a pipe sleeve, a supporting rod is arranged at the top end of the pipe sleeve in a sleeved mode, the bottom end, located in the pipe sleeve, of the supporting rod is connected with a first piston through a threaded groove, and an angle adjusting assembly is arranged at the top end of the supporting rod. The angle adjusting assembly comprises a structural frame fixed to the top end of the supporting rod through a bolt, a gear is rotationally connected into the structural frame through a bearing, a connecting column is welded to one side of the gear, and a clamping cover is fixed to one end of the connecting column through a bolt. An air inlet assembly is arranged on one side of the pipe sleeve; the second piston is pulled up and down through the connecting rod, external air is pumped into the barrel and conveyed into the pipe sleeve, the supporting rod and the sound level meter fixed to the clamping cover are pushed to move upwards through the first piston, a power source does not need to be connected, the clamping cover and the sound level meter in the clamping cover can be adjusted to rotate through the connecting column by rotating the gear, and the inclination angle of the sound level meter can be adjusted.

Description

Technical Field

[0001] This utility model relates to the field of sound level meter technology, specifically to an external support mechanism for a sound level meter. Background Technology

[0002] A sound level meter is the most basic noise measuring instrument. It is an electronic instrument, but it is different from objective electronic instruments such as voltmeters. When converting sound signals into electrical signals, it can simulate the time characteristics of the human ear's response to sound waves. It has different sensitivity characteristics and intensity characteristics that change at different loudness levels. A sound level meter is a subjective electronic instrument.

[0003] Currently, most people use handheld sound level meters for testing. However, when testing for extended periods or at heights is required, a support mechanism is used to install and secure the sound level meter. Existing sound level meter support mechanisms are all electrically driven, requiring an external power source to move the sound level meter upwards after installation. They cannot function without power. Therefore, an external support mechanism for the sound level meter is proposed. Repeatedly pushing and pulling the connecting rod moves the second piston within the cylinder, drawing external gas into the cylinder and pushing it into the sleeve, thereby pushing the connecting rod and the sound level meter fixed in the retainer upwards without the need for an external power source. Summary of the Invention

[0004] To address the problems in the existing technology, this utility model provides an external support mechanism for a sound level meter. Repeatedly pushing and pulling the connecting rod drives the second piston to move inside the cylinder, drawing external gas into the cylinder and pushing it into the sleeve, thereby pushing the connecting rod and the sound level meter fixed in the cover upwards, without the need to connect to an external power source.

[0005] The technical solution adopted by this utility model to solve its technical problem is an external support mechanism for a sound level meter, including a tube sleeve. A support rod is sleeved on the top of the tube sleeve. The bottom end of the support rod located inside the tube sleeve is connected to a first piston through a threaded groove. An angle adjustment component is provided at the top of the support rod. The angle adjustment component includes a structural frame fixed to the top of the support rod by bolts. A gear is rotatably connected inside the structural frame through a bearing. A connecting column is welded to one side of the gear. A retainer is fixed to one end of the connecting column by bolts.

[0006] An air intake assembly is provided on one side of the sleeve. The air intake assembly includes a cylinder mounted on one side of the sleeve via a mounting bracket. A connecting rod is sleeved at the bottom end of the cylinder. A second piston is connected to the top of the connecting rod inside the cylinder via a threaded groove. A first one-way valve is connected to the top of the cylinder via a pipe. A second one-way valve is connected to one side of the cylinder via a pipe.

[0007] By adopting the above technical solution, the second piston is pulled up and down by the connecting rod to draw external gas into the cylinder and deliver it into the sleeve. The first piston pushes the support rod and the sound level meter fixed on the cover to move upward. No power supply is required. The rotation of the cover and the sound level meter inside can be adjusted by rotating the gear through the connecting column, and the tilt angle of the sound level meter can be adjusted.

[0008] Specifically, the top of the first check valve is connected to a filter cover via a threaded groove, and the end of the second check valve away from the cylinder is connected to one side of the sleeve via a pipe.

[0009] Specifically, the bottom end of the connecting rod at the bottom of the cylinder is connected to a handle via a threaded groove.

[0010] Specifically, an exhaust valve is connected to one side of the sleeve via a pipe, and a flange ring is welded to the bottom of the outer side of the sleeve.

[0011] Specifically, one side of the structural frame is connected to a fixing bolt via a threaded groove.

[0012] Specifically, a rubber pad is glued to the inside of the card cover.

[0013] The beneficial effects of this utility model are:

[0014] The present invention discloses an external support mechanism for a sound level meter. By gripping the handle and moving the connecting rod up and down, the second piston moves within the cylinder. When the second piston moves down, it draws external gas into the cylinder through the first one-way valve and the filter cover. When the second piston moves up, it pushes the gas in the cylinder into the sleeve through the second one-way valve. The gas entering the sleeve pushes the sound level meter within the connecting rod and the cover upward through the first piston, thus adjusting the height of the sound level meter.

[0015] The external support mechanism for a sound level meter described in this utility model allows for adjustment of the sound level meter's tilt angle by rotating and loosening the fixing bolts, and by rotating the gear through the connecting column adjusting the cover and the sound level meter's internal angle, facilitating observation. Tightening the fixing bolts onto the gear at one end fixes the rotated gear in place. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the sleeve of this utility model;

[0019] Figure 3 This is a schematic diagram of the air intake assembly structure of this utility model;

[0020] Figure 4This is a schematic diagram of the angle adjustment component structure of this utility model;

[0021] In the diagram: 1. Pipe sleeve; 2. Support rod; 3. Angle adjustment assembly; 301. Structural frame; 302. Gear; 303. Connecting column; 304. Fixing bolt; 4. Clamping cover; 5. Intake assembly; 501. Cylinder; 502. Connecting rod; 503. Second piston; 504. First one-way valve; 505. Filter cover; 506. Second one-way valve; 507. Handle; 6. Exhaust valve; 7. Flange ring; 8. First piston. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Repeatedly pushing and pulling the connecting rod drives the second piston to move within the cylinder, drawing external gas into the cylinder and pushing it into the sleeve, thereby pushing the connecting rod and the sound level meter fixed inside the retainer upwards. No external power supply is required. Figure 1-4 As shown, the external support mechanism for a sound level meter of this utility model includes a sleeve 1, a support rod 2 sleeved at the top of the sleeve 1, a first piston 8 connected to the bottom of the support rod 2 inside the sleeve 1 via a threaded groove, an angle adjustment component 3 provided at the top of the support rod 2, the angle adjustment component 3 including a structural frame 301 fixed to the top of the support rod 2 by bolts, a gear 302 rotatably connected inside the structural frame 301 via bearings, a connecting column 303 welded to one side of the gear 302, and a retainer 4 fixed to one end of the connecting column 303 by bolts;

[0024] An air intake assembly 5 is provided on one side of the sleeve 1. The air intake assembly 5 includes a cylinder 501 mounted on one side of the sleeve 1 via a mounting bracket. A connecting rod 502 is sleeved on the bottom end of the cylinder 501. The top end of the connecting rod 502 located inside the cylinder 501 is connected to a second piston 503 via a threaded groove. A first one-way valve 504 is connected to the top end of the cylinder 501 via a pipe. A second one-way valve 506 is connected to one side of the cylinder 501 via a pipe.

[0025] In use, the second piston 503 is pulled up and down by the connecting rod 502 to draw external gas into the cylinder 501 and deliver it into the sleeve 1. The first piston 8 pushes the support rod 2 and the sound level meter fixed on the cover 4 to move upward. No power supply is required. The rotation of the gear 302 can adjust the rotation of the cover 4 and the sound level meter inside through the connecting column 303, and the tilt angle of the sound level meter can be adjusted.

[0026] For example, such as Figure 3As shown, the present invention also includes a filter cover 505 connected to the top of the first one-way valve 504 via a threaded groove, and the end of the second one-way valve 506 away from the cylinder 501 is connected to one side of the sleeve 1 via a pipe.

[0027] During use, the first one-way valve 504 can prevent the gas drawn into the cylinder 501 from flowing back, and the filter cover 505 can filter dust, impurities, etc.

[0028] For example, such as Figure 3 As shown, the present invention also includes a handle 507 connected to the bottom end of the connecting rod 502 at the bottom of the cylinder 501 via a threaded groove.

[0029] When in use, the handle 507 is designed to make it easy for people to grip and pull the connecting rod 502.

[0030] For example, such as Figure 1 As shown in handle 5073, this utility model also includes an exhaust valve 6 connected to one side of the sleeve 1 via a pipe, and a flange ring 7 welded to the bottom outer side of the sleeve 1.

[0031] During use, the exhaust valve 6 prevents the backflow of gas entering the sleeve 1, and the flange ring 7 facilitates the installation and fixing of the sleeve 1.

[0032] For example, such as Figure 4 As shown, the present invention also includes a fixing bolt 304 connected to one side of the structural frame 301 via a threaded groove.

[0033] When in use, tightening the fixing bolt 304 can fix the rotating gear 302.

[0034] For example, such as Figure 1 As shown, the present invention also includes a rubber pad 9 glued to the inner side of the card cover 4.

[0035] When in use, the rubber pad 9 serves to prevent slipping and also protects the sound level meter placed inside the cover 4.

[0036] When using this utility model, personnel use bolts to fix the sleeve 1 to the object or wall through the flange ring 7, and then place the sound level meter into the cover 4.

[0037] Rotate and loosen the fixing bolt 304, rotate the gear 302 and adjust the angle of the cover 4 and the sound level meter inside through the connecting column 303. The tilt angle of the sound level meter can be adjusted for easy observation. Tighten the fixing bolt 304 so that one end of it is on the top gear 302, which can fix the rotated gear 302.

[0038] The operator holds the handle 507 and moves the connecting rod 502 up and down, which drives the second piston 503 to move inside the cylinder 501. When the second piston 503 moves down, it draws external gas into the cylinder 501 through the first one-way valve 504 and the filter cover 505. When the second piston 503 moves up, it pushes the gas in the cylinder 501 into the sleeve 1 through the second one-way valve 506. The gas entering the sleeve 1 pushes the sound level meter inside the connecting rod 502 and the cover 4 upward through the first piston 8, which can adjust the height of the sound level meter.

[0039] Opening the second one-way valve 506 allows the gas inside the cylinder 501 to be discharged, thereby allowing the support rod 2 to move down due to its own weight and retract into the sleeve 1.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sound level meter external support mechanism characterized by, The utility model provides a kind of pipe sleeve (1), the pipe sleeve (1) top end is equipped with support rod (2), the support rod (2) is located in the bottom end inside pipe sleeve (1) is connected with first piston (8) by thread groove, the support rod (2) top end is provided with angle adjusting assembly (3), the angle adjusting assembly (3) includes the structure frame (301) by bolt fixed in support rod (2) top end, the structure frame (301) inside is rotatably connected with gear (302) by bearing, the gear (302) one side is welded with connecting column (303), the connecting column (303) one end is fixed with the cap cover (4) by bolt; The pipe sleeve (1) one side is provided with air inlet component (5), the air inlet component (5) includes the cylinder (501) of being installed with in pipe sleeve (1) one side by mounting frame, the cylinder (501) bottom end is equipped with connecting rod (502), the connecting rod (502) is located in the top end inside cylinder (501) is connected with second piston (503) by thread groove, the cylinder (501) top end is connected with first one-way valve (504) by pipeline, the cylinder (501) one side is connected with second one-way valve (506) by pipeline.

2. The external support mechanism for a sound level meter according to claim 1, wherein, The first one-way valve (504) top is connected with filter cover (505) by thread groove, the second one-way valve (506) is connected with pipe sleeve (1) one side by pipeline away from the one end of cylinder (501).

3. The external support mechanism for a sound level meter according to claim 1, wherein The connecting rod (502) is located in the bottom end of cylinder (501) bottom and is connected with handle (507) by thread groove.

4. The external support mechanism for a sound level meter of claim 1, wherein, The pipe sleeve (1) one side is connected with exhaust valve (6) by pipeline, the pipe sleeve (1) outside bottom end is welded with flange ring (7).

5. The external support mechanism for a sound level meter of claim 1, wherein, The structure frame (301) one side is connected with fixed bolt (304) by thread groove.

6. The external support mechanism for a sound level meter of claim 1, wherein, The cap cover (4) inboard is glued with rubber pad (9).

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