A positioning bracket for installing a sound level meter

Abstract

The utility model discloses a positioning frame for sound level meter installation, which relates to the field of sound level meter positioning frames, in order to solve the problem in the prior art that the distance between the sound level meter and the noise point cannot be adjusted after the sound level meter is fixed in the positioning frame for sound level meter installation. Since the noise level at different positions is related to the distance from the noise point, it is necessary to move the positioning frame when measuring at different positions, which is relatively troublesome. An electric telescopic rod is fixedly connected to the middle of the upper end of the bottom plate, a transmission box is fixedly connected to the upper end of the electric telescopic rod, a circular opening is provided in the middle of the upper end surface of the transmission box, a rotating seat is connected to the upper end of the transmission box, a rotating member is fixedly connected to the middle of the lower end of the rotating seat, a distance adjustment guide rail is fixedly connected to the upper end of the rotating seat, a rectangular groove is provided in the middle of the inner part of the distance adjustment guide rail, a screw is provided in the middle of the rectangular groove, and a sound level meter fixing mechanism is provided at the upper end of the distance adjustment guide rail.

Description

Technical Field

[0001] The utility model relates to the field of sound level meter positioning frames, in particular to a positioning frame used for installing a sound level meter. Background Art

[0002] The 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 reaction speed to sound waves; it has characteristics of different sensitivities and intensity characteristics of changing characteristics at different loudnesses. The sound level meter is a subjective electronic instrument. According to the sensitivity of the sound level meter, there are two ways to classify sound level meters: one is an ordinary sound level meter, which does not require too high a microphone. The dynamic range and frequency response flatness range are relatively narrow, and it is generally not configured with a bandpass filter for use; the other is a precision sound level meter, whose microphone requires a wide frequency response, high sensitivity, good long-term stability, and can be used in conjunction with various bandpass filters. The amplifier output can be directly connected to a level recorder or recorder, and the noise signal can be displayed or stored. If the microphone of the precision sound level meter is removed and replaced with an input converter and connected to an accelerometer, it becomes a vibration meter that can be used for vibration measurement.

[0003] For example, the authorization announcement number CN 216976287 U, a multifunctional positioning device for a sound level meter, includes a fixed plate, an adjustment box, a positioning mechanism for fixing the sound level meter and an adjustment mechanism for adjusting the height of the sound level meter, the positioning mechanism includes a slide groove opened in the fixed plate, a rotating rod movably connected to the slide groove, a threaded sleeve sleeved on both sides of the rotating rod, a slider threadedly connected to the threaded sleeve, a connecting sleeve arranged in the middle of the rotating rod, a first gear arranged on the outer wall of the connecting sleeve and a second gear meshed with the first gear, the slider extends to the top of the fixed plate, the utility model has the advantages of convenient height adjustment through the coordinated use of the fixed plate, the adjustment box, the positioning mechanism, the adjustment mechanism, the slide groove, the rotating rod, the threaded sleeve, the slider, the connecting sleeve, the first gear, the second gear, the placement plate and the connecting rod, and can avoid the displacement of the sound level meter when the height is adjusted, thereby improving the monitoring value of the sound level meter.

[0004] At present, after the positioning frame for installing the sound level meter is fixed, the distance between the sound level meter and the noise point cannot be adjusted. Since the noise level at different positions is related to the distance from the noise point, it is troublesome to move the positioning frame when measuring at different positions. Therefore, the market urgently needs to develop a positioning frame for installing the sound level meter to help people solve the existing problem. Utility Model Content

[0005] The utility model aims to provide a positioning frame for installing a sound level meter, so as to solve the problem proposed in the above background technology that the positioning frame for installing the current sound level meter cannot adjust the distance between the sound level meter and the noise point after the sound level meter is fixed, and because the noise level at different positions is related to the distance from the noise point, it is necessary to move the positioning frame when measuring at different positions, which is quite troublesome.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning frame for installing a sound level meter, comprising a base plate, an electric telescopic rod is fixedly connected to the middle of the upper end of the base plate, a transmission box is fixedly connected to the upper end of the electric telescopic rod, a circular opening is provided in the middle of the upper end surface of the transmission box, a rotating seat is connected to the upper end of the transmission box, a rotating member is fixedly connected to the middle of the lower end of the rotating seat, a distance adjustment guide rail is fixedly connected to the upper end of the rotating seat, a rectangular groove is provided in the middle of the interior of the distance adjustment guide rail, a screw is provided in the middle of the rectangular groove, and a sound level meter fixing mechanism is provided at the upper end of the distance adjustment guide rail.

[0007] Preferably, a worm is rotatably connected to one side of the interior of the rotating seat, and the front end of the worm extends through the transmission box to the outside and is fixedly connected to a first knob.

[0008] Preferably, the rotating member at the lower end of the rotating seat is inserted into the transmission box through the circular opening.

[0009] Preferably, a worm gear is provided at the lower end of the outer end surface of the rotating member, and the worm gear on the rotating member is meshingly connected with the worm gear teeth.

[0010] Preferably, one end of the screw rod passes through one side of the distance adjustment guide rail, extends to the outside and is fixedly connected to a second knob.

[0011] Preferably, a threaded slider is fixedly connected to the middle portion of the lower end of the sound level meter fixing mechanism.

[0012] Preferably, the threaded slider at the lower end of the sound level meter fixing mechanism is inserted into the rectangular groove, and the screw rod is threadedly connected to the middle part of the threaded slider.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, through the setting of the distance adjustment guide rail, the upper end of the rotating seat is fixedly connected with the distance adjustment guide rail, and the upper end of the distance adjustment guide rail is provided with a sound level meter fixing mechanism, the sound level meter is installed on the sound level meter fixing mechanism, the threaded slider at the lower end of the sound level meter fixing mechanism is inserted into the rectangular groove, and the screw is threadedly connected with the middle part of the threaded slider, and when the screw rotates, the threaded slider is driven to slide along the inside of the rectangular groove, and the self-locking effect between the screw and the threaded slider allows the threaded slider to maintain a stable position after moving, thereby allowing the sound level meter fixing mechanism to move along the upper end of the distance adjustment guide rail, and when the distance adjustment guide rail is perpendicular to the noise point, the distance between the sound level meter and the noise point is adjusted by sliding the sound level meter fixing mechanism, so that the sound level meter can measure the noise point at different positions.

[0015] In the utility model, through the setting of the transmission box, the upper end of the electric telescopic rod is fixedly connected to the transmission box, and the rotating piece at the lower end of the rotating seat is inserted into the transmission box through the circular opening, so that the rotating seat can rotate at the upper end of the transmission box, and the rotating seat drives the distance adjustment guide rail to rotate to adjust the angle of the distance adjustment guide rail.

[0016] In the utility model, through the arrangement of worm gear teeth and worm, a worm is rotatably connected to one side of the transmission box, the front end of the worm extends through the transmission box to the outside and is fixedly connected to a first knob, and the worm is driven to rotate by rotating the first knob, and a worm gear is arranged at the lower end of the outer end surface of the rotating member, and the worm gear teeth on the rotating member are meshed and connected with the worm gear teeth, so that the worm drives the rotating seat to rotate, and the self-locking effect between the worm gear teeth and the worm is ensured to keep the distance adjustment guide rail stable after rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of a positioning frame for installing a sound level meter according to the utility model;

[0018] Figure 2 It is a side view of the utility model;

[0019] Figure 3 It is the main sectional view of the utility model;

[0020] Figure 4 It is a side sectional view of the utility model.

[0021] In the figure: 1, bottom plate; 101, electric telescopic rod; 2, transmission box; 201, worm; 202, first knob; 203, circular opening; 3, rotating seat; 301, rotating part; 302, worm gear; 4, distance adjustment guide rail; 401, rectangular groove; 402, screw; 403, second knob; 5, sound level meter fixing mechanism; 501, threaded slider. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1-4 The utility model provides an embodiment: a positioning frame for installing a sound level meter, comprising a base plate 1, an electric telescopic rod 101 is fixedly connected to the middle of the upper end of the base plate 1, a transmission box 2 is fixedly connected to the upper end of the electric telescopic rod 101, a circular opening 203 is provided in the middle of the upper end surface of the transmission box 2, a rotating seat 3 is connected to the upper end of the transmission box 2, a rotating member 301 is fixedly connected to the middle of the lower end of the rotating seat 3, a distance adjustment guide rail 4 is fixedly connected to the upper end of the rotating seat 3, a rectangular groove 401 is provided in the middle of the inner part of the distance adjustment guide rail 4, a screw 402 is provided in the middle of the rectangular groove 401, and a sound level meter fixing mechanism 5 is provided at the upper end of the distance adjustment guide rail 4.

[0024] Furthermore, a worm 201 is rotatably connected to one side of the transmission box 2, and a front end of the worm 201 extends through the transmission box 2 to the outside and is fixedly connected to a first knob 202, and the worm 201 is driven to rotate by rotating the first knob 202.

[0025] Furthermore, the rotating member 301 at the lower end of the rotating seat 3 is inserted into the transmission box 2 through the circular opening 203 , so that the rotating seat 3 can rotate at the upper end of the transmission box 2 .

[0026] Furthermore, a worm gear 302 is provided at the lower end of the outer end surface of the rotating member 301. The worm gear 302 on the rotating member 301 is meshed and connected with the teeth of the worm 201, so that the worm 201 drives the rotating seat 3 to rotate, and then the rotating seat 3 drives the distance adjustment guide rail 4 to rotate, thereby adjusting the angle of the distance adjustment guide rail 4. Through the self-locking effect between the worm gear 302 and the worm 201, the distance adjustment guide rail 4 remains stable after rotation.

[0027] Furthermore, one end of the screw rod 402 passes through one side of the distance adjustment guide rail 4 and extends to the outside and is fixedly connected to a second knob 403 , and the screw rod 402 is driven to rotate by the second knob 403 .

[0028] Furthermore, a threaded slider 501 is fixedly connected to the middle portion of the lower end of the sound level meter fixing mechanism 5 .

[0029] Furthermore, the threaded slider 501 at the lower end of the sound level meter fixing mechanism 5 is inserted into the rectangular groove 401, and the screw 402 is threadedly connected to the middle part of the threaded slider 501. When the screw 402 rotates, it drives the threaded slider 501 to slide along the inside of the rectangular groove 401. Through the self-locking effect between the screw 402 and the threaded slider 501, the threaded slider 501 maintains a stable position after moving, thereby making the sound level meter fixing mechanism 5 move along the upper end of the distance adjustment guide rail 4. When the distance adjustment guide rail 4 is perpendicular to the noise point, the distance between the sound level meter and the noise point is adjusted by sliding the sound level meter fixing mechanism 5, so that the sound level meter can measure the noise point at different positions.

[0030] Working principle: when in use, the entire positioning frame is placed in a suitable position through the base plate 1, and an electric telescopic rod 101 is fixedly connected to the middle part of the upper end of the base plate 1, and the position of the sound level meter fixing mechanism 5 is adjusted by the electric telescopic rod 101, and the upper end of the electric telescopic rod 101 is fixedly connected to the transmission box 2, and the upper end of the rotating seat 3 is fixedly connected to the distance adjustment guide rail 4, and the upper end of the distance adjustment guide rail 4 is provided with a sound level meter fixing mechanism 5, and a worm 201 is rotatably connected to one side of the transmission box 2, and the front end of the worm 201 passes through the transmission box 2 and extends to the outside and is fixedly connected to the first knob 202, and the rotating member 301 at the lower end of the rotating seat 3 passes through the circular opening 203 and is inserted into the transmission box 2, and a worm gear 302 is provided at the lower end of the outer end surface of the rotating member 301, and the worm gear 302 on the rotating member 301 is meshed and connected with the teeth of the worm 201, and the worm 201 is driven to rotate by rotating the first knob 202, so that the worm 201 drives the rotating seat 3 to rotate, and then the rotating The seat 3 drives the distance adjustment guide rail 4 to rotate, and adjusts the angle of the distance adjustment guide rail 4. Through the self-locking effect between the worm gear 302 and the worm 201, the distance adjustment guide rail 4 remains stable after rotation, and the distance adjustment guide rail 4 is perpendicular to the noise point. The sound level meter is installed on the sound level meter fixing mechanism 5, and the threaded slider 501 at the lower end of the sound level meter fixing mechanism 5 is inserted into the rectangular groove 401, and the screw 402 is threadedly connected with the middle part of the threaded slider 501. When the screw 402 rotates, it drives the threaded slider 501 to slide along the inside of the rectangular groove 401. Through the self-locking effect between the screw 402 and the threaded slider 501, the threaded slider 501 remains stable after moving, and then the sound level meter fixing mechanism 5 moves along the upper end of the distance adjustment guide rail 4. When the distance adjustment guide rail 4 is perpendicular to the noise point, the distance between the sound level meter and the noise point is adjusted by sliding the sound level meter fixing mechanism 5, so that the sound level meter can measure the noise point at different positions.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A positioning frame for installing a sound level meter, comprising a base plate (1), characterized in that: The middle of the upper end of the base plate (1) is fixedly connected to an electric telescopic rod (101), the upper end of the electric telescopic rod (101) is fixedly connected to a transmission box (2), the middle of the upper end surface of the transmission box (2) is provided with a circular opening (203), the upper end of the transmission box (2) is connected to a rotating seat (3), the middle of the lower end of the rotating seat (3) is fixedly connected to a rotating member (301), the upper end of the rotating seat (3) is fixedly connected to a distance adjustment guide rail (4), the middle of the inner portion of the distance adjustment guide rail (4) is provided with a rectangular groove (401), the middle of the rectangular groove (401) is provided with a screw rod (402), and the upper end of the distance adjustment guide rail (4) is provided with a sound level meter fixing mechanism (5).

2. A positioning bracket for installing a sound level meter according to claim 1, characterized in that: A worm (201) is rotatably connected to one side of the transmission box (2), and a front end of the worm (201) passes through the transmission box (2) and extends to the outside and is fixedly connected to a first knob (202).

3. A positioning bracket for installing a sound level meter according to claim 1, characterized in that: The rotating member (301) at the lower end of the rotating seat (3) passes through the circular opening (203) and is inserted into the transmission box (2).

4. A positioning bracket for installing a sound level meter according to claim 3, characterized in that: A worm gear tooth (302) is provided at the lower end of the outer end surface of the rotating member (301), and the worm gear tooth (302) on the rotating member (301) is meshedly connected with the tooth portion of the worm (201).

5. A positioning bracket for installing a sound level meter according to claim 1, characterized in that: One end of the screw rod (402) passes through one side of the distance adjustment guide rail (4), extends to the outside and is fixedly connected to a second knob (403).

6. A positioning bracket for installing a sound level meter according to claim 1, characterized in that: A threaded slider (501) is fixedly connected to the middle portion of the lower end of the sound level meter fixing mechanism (5).

7. A positioning bracket for installing a sound level meter according to claim 1, characterized in that: The threaded slider (501) at the lower end of the sound level meter fixing mechanism (5) is inserted into the rectangular groove (401), and the screw rod (402) is threadedly connected to the middle part of the threaded slider (501).

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