A noise monitor for construction sites

Abstract

The present application relates to the technical field of monitoring, in particular to a noise monitor for construction site. The technical problem of the present application is to provide a noise monitor for construction site with better stability, which can adjust the height of the noise monitor and the direction of the display screen simultaneously. The present application provides a noise monitor for construction site, which comprises a support rod and a support frame, the upper part of the support rod is slidably connected with the support frame; a display screen is rotatably connected in the support frame; a first compression spring is arranged around the support frame and the support rod, the upper part of the first compression spring is connected with the support frame, and the lower part of the first compression spring is connected with the support rod. The present application drives the winding wheel to tighten the pull rope through the motor, and then drives the display screen to move downward, so as to reduce the gravity center of the display screen. Through the meshing of the gear and the rack, the direction of the display screen is changed, the display screen is kept horizontal with the wind, the resistance of the wind is reduced, and the stability of the noise monitor is improved.

Description

Technical Field

[0001] The present invention relates to the field of monitoring technology, and in particular to a noise monitor for construction sites. Background Art

[0002] Construction sites often use tower cranes, concrete mixers, steel bar cutters, excavators and other equipment. These equipment will generate noise and cause noise pollution. Therefore, a noise monitor is needed to monitor the noise and prevent the noise from continuously exceeding the standard. However, the display screen of the general noise monitor is located high and the support rod supporting the noise monitor is thin. When there is a strong wind, it is very easy to blow the noise monitor down, thereby damaging the noise monitor.

[0003] Patent announcement number CN216297361U discloses a noise monitor for building monitoring, including a column, a collar is provided on the upper end of the outer wall of the column, and a display screen is installed on one side of the collar, a noise sensor is installed in the middle position of the top of the display screen, and a power box is provided on the outer wall of the column below the display screen, a bellows is installed on the other side of the collar, and a connecting pipe is installed on one side of one end of the bellows, an air duct is installed on one side of the connecting pipe, and air holes are evenly opened at one end of the air duct.

[0004] When using the above-mentioned noise monitor, the sliding plate is fixed by tightening the limit bolt, the pointed cone is inserted into the soil for preliminary fixation, and then the installation bolt is turned for final fixation. The entire noise monitor is only provided with a fixing device at the bottom. Not only can the height of the entire noise monitor not be adjusted, which makes the center of gravity of the display screen high, but the direction of the display screen cannot be adjusted, so that the display screen is in a windward state when strong winds blow, and the noise monitor can be easily blown down. Therefore, a noise monitor for construction sites is developed that can simultaneously adjust the height and direction of the noise monitor and has better stability. Summary of the Invention

[0005] In order to overcome the shortcomings of existing noise monitors that can neither adjust the height nor the direction of the display screen and have poor stability, the technical problem of the present invention is to provide a construction site noise monitor that can simultaneously adjust the height and direction of the noise monitor and has better stability.

[0006] The technical implementation scheme of the present invention is: a noise monitor for construction sites, comprising:

[0007] A support rod and a support frame, wherein the upper portion of the support rod is slidably connected to the support frame;

[0008] A display screen is rotatably connected to the support frame;

[0009] A first compression spring is wound between the support frame and the support rod, the upper portion of the first compression spring is connected to the support frame, and the lower portion of the first compression spring is connected to the support rod;

[0010] A downward movement mechanism is provided at the lower part of the support rod for driving the display screen to move downward;

[0011] Rotation mechanism: Rotation mechanisms for changing the direction of the display screen are provided on both the left and right sides of the support rod.

[0012] Optionally, the downward movement mechanism includes:

[0013] Motor, the left and right sides of the lower part of the support rod are connected to the motor;

[0014] The winding wheel is connected to the output shaft of the motor;

[0015] Pull ropes are connected between the left and right sides of the winding wheel and the lower part of the support frame. The upper part of the pull rope is connected to the lower part of the support frame, and the lower part of the pull rope is connected to the winding wheel.

[0016] Optionally, the rotating mechanism includes:

[0017] Rack: The support rod is fixedly connected with a rack, and the rack is located on the left and right sides of the support frame;

[0018] Gears: Gears are fixedly connected to the left and right sides of the display screen, and the gears and racks are meshed with each other.

[0019] Optionally, a support mechanism for supporting the bottom of the support rod is further included, and the support mechanism includes:

[0020] Support base plate, the four sides of the lower part of the support rod are connected with support base plates;

[0021] A fixing sleeve is fixedly connected to the middle and lower part of the support rod;

[0022] Connecting rods are connected between the fixing sleeve and the supporting base plate.

[0023] Optionally, a drag reduction mechanism is further included to streamline the windward side of the display screen, and the drag reduction mechanism includes:

[0024] First guide rods, both left and right sides of the upper portion of the display screen are fixedly connected to the first guide rods, and both left and right sides of the lower portion of the display screen are also fixedly connected to the first guide rods;

[0025] The arc-shaped plate is slidably connected between the two upper first guide rods, and the arc-shaped plate is also slidably connected between the two lower first guide rods.

[0026] Optionally, a weight-increasing mechanism for adding weight to the bottom of the noise detector is further included, and the weight-increasing mechanism includes:

[0027] A second guide rod, wherein the upper portion of the outermost end of each support base plate is fixedly connected to the second guide rod, and the second guide rods are inserted into the support base plate;

[0028] The pressure plate and the second guide rod are both slidably connected with a pressure plate;

[0029] A third compression spring is wound between the pressure plate and the second guide rod. The upper portion of the third compression spring is connected to the second guide rod, and the lower portion of the third compression spring is connected to the pressure plate.

[0030] Optionally, a fixing mechanism for fixing the noise detector on the ground is further included, and the fixing mechanism includes:

[0031] A fixing frame, wherein the outermost end of each supporting base plate is fixedly connected to a fixing frame in the outward extension direction;

[0032] A limit rod is slidably connected to the outermost end of each fixing frame, and the limit rods are inserted into the outermost end of the fixing frame.

[0033] Optionally, it also includes:

[0034] A second compression spring is wound between the left and right sides of the arc plate and the display screen. One end of the second compression spring is connected to the arc plate, and the other end of the second compression spring is connected to the display screen.

[0035] The present invention has the following advantages: 1. The present invention drives the winding wheel to tighten the rope through the motor, thereby driving the display screen to move downward, thereby lowering the center of gravity of the display screen, and changes the direction of the display screen through the engagement of the gear and the rack, so that the display screen remains horizontal with the wind, reducing wind resistance and thereby improving the stability of the noise monitor.

[0036] 2. The present invention increases the force-bearing area of ​​the noise monitor by adding a supporting base plate at the bottom of the supporting rod, thereby improving the stability of the noise monitor.

[0037] 3. The present invention provides a curved plate on the windward side of the display screen, so that the windward side of the display screen is streamlined, which can reduce the resistance of the wind to the display screen and thus improve the stability of the noise monitor.

[0038] 4. The present invention facilitates people to add weights or other gravity objects to the noise monitor by moving the pressure plate upward, thereby increasing the stability of the base.

[0039] 5. The present invention can fix the noise monitor on the ground by moving the limit rod downward and inserting the limit rod into the soil, thereby preventing the noise monitor from being blown down. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0041] Figure 2 It is a schematic diagram of the three-dimensional structure of the downward movement mechanism of the present invention.

[0042] Figure 3 It is a schematic diagram of the three-dimensional structure of the rotating mechanism of the present invention.

[0043] Figure 4 It is a schematic diagram of the three-dimensional structure of the support mechanism of the present invention.

[0044] Figure 5 It is a schematic diagram of the three-dimensional structure of the drag reduction mechanism of the present invention.

[0045] Figure 6 It is a schematic diagram of the cross-sectional three-dimensional structure of the first part of the drag reduction mechanism of the present invention.

[0046] Figure 7 It is a schematic diagram of the cross-sectional three-dimensional structure of the second part of the drag reduction mechanism of the present invention.

[0047] Figure 8 It is a schematic diagram of the three-dimensional structure of the weight-increasing mechanism of the present invention.

[0048] Figure 9 It is a schematic diagram of the three-dimensional structure of the fixing mechanism of the present invention.

[0049] The components in the accompanying drawings are marked as follows: 1: support rod, 2: support frame, 3: display screen, 4: first compression spring, 5: downward movement mechanism, 51: motor, 52: winding wheel, 53: pull rope, 6: rotating mechanism, 61: rack, 62: gear, 7: support mechanism, 71: support base plate, 72: connecting rod, 73: fixing sleeve, 8: drag reduction mechanism, 81: arc plate, 82: first guide rod, 83: second compression spring, 9: weight increasing mechanism, 91: second guide rod, 92: third compression spring, 93: pressure plate, 10: fixing mechanism, 101: fixing frame, 102: limiting rod. DETAILED DESCRIPTION

[0050] To make the objectives, technical solutions, and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that any directional terms such as "up," "down," "left," "right," "front," "back," "inside," and "outside" that appear or will appear herein are based solely on the accompanying drawings and are not intended to limit the present invention.

[0051] Example 1

[0052] A noise monitor for construction sites, such as Figure 1As shown, it includes a support rod 1, a support frame 2, a display screen 3, a first compression spring 4, a downward movement mechanism 5 and a rotation mechanism 6. The upper part of the support rod 1 is slidably connected to the support frame 2, and the display screen 3 is rotatably connected inside the support frame 2. A first compression spring 4 is wound between the support frame 2 and the support rod 1. The upper part of the first compression spring 4 is connected to the support frame 2, and the lower part of the first compression spring 4 is connected to the support rod 1. The lower part of the support rod 1 is provided with a downward movement mechanism 5, and the left and right sides of the support rod 1 are provided with a rotation mechanism 6.

[0053] like Figure 1 and Figure 2 As shown, the downward movement mechanism 5 includes a motor 51, a winding wheel 52 and a pull rope 53. The motor 51 is connected to the left and right sides of the lower part of the support rod 1, and the output shaft of the motor 51 is connected to the winding wheel 52. The pull rope 53 is connected between the winding wheel 52 and the left and right sides of the lower part of the support frame 2. The upper part of the pull rope 53 is connected to the lower part of the support frame 2, and the lower part of the pull rope 53 is connected to the winding wheel 52.

[0054] like Figure 1 and Figure 3 As shown, the rotating mechanism 6 includes a rack 61 and a gear 62. The rack 61 is fixedly connected to the support rod 1, and the rack 61 is located on the left and right sides of the support frame 2. The left and right sides of the display screen 3 are fixedly connected with gears 62, and the gear 62 and the rack 61 are engaged with each other.

[0055] When people need to monitor the noise of a construction site, they need to use a noise monitor. Since the noise monitor is set outdoors, it is easy to be blown down by strong winds, thereby damaging the noise monitor. In order to improve the stability of the noise monitor, people can start the motor 51, and the output shaft of the motor 51 will start to rotate, driving the winding wheel 52 to start rotating. The winding wheels 52 on both sides will tighten the pull ropes 53 on both sides, causing the pull ropes 53 to move downward, thereby driving the support frame 2 to move downward. The first compression spring 4 is compressed, and the movement of the support frame 2 will drive the display screen 3 to move downward as well. In this way, the height of the display screen 3 is reduced, that is, the center of gravity of the display screen 3 is lowered, which can improve the stability of the noise monitor. At the same time, the downward movement of the support frame 2 will drive the gear 62 to move downward as well. When the gear 62 contacts the rack 61, the gear 62 and the rack 6 1 will engage, so that the display screen 3 can rotate backward, thereby making the display screen 3 horizontal with the wind, reducing the wind-exposed area of ​​the display screen 3, and making the display screen 3 no longer in a windward state, which can reduce the resistance of strong wind to the display screen 3, and also improve the stability of the noise monitor to avoid tipping over. In this way, people can adjust the height of the display screen 3, lower the center of gravity of the display screen 3, and change the direction of the display screen 3, so that the display screen 3 is kept horizontal with the wind, reducing the resistance of wind to the display screen 3, thereby improving the stability of the entire noise monitor. When there is no more strong wind, people can control the motor 51 to drive the winding wheel 52 to reverse, so that the winding wheel 52 releases the pull rope 53, and the support frame 2 will drive the display screen 3 to move upward and reset under the action of the first compression spring 4. At the same time, the gear 62 and the rack 61 will engage in reverse, so that the display screen 3 rotates forward and resets.

[0056] Example 2

[0057] On the basis of Example 1, Figure 1 and Figure 4 As shown, it also includes a support mechanism 7, which includes a support base plate 71, a connecting rod 72 and a fixing sleeve 73. The support base plate 71 is connected to all four sides of the lower part of the support rod 1, and the fixing sleeve 73 is fixedly connected to the middle and lower part of the support rod 1. A connecting rod 72 is connected between the fixing sleeve 73 and the support base plate 71.

[0058] In order to further improve the stability of the noise monitor, support base plates 71 are provided around the lower part of the support rod 1, which is equivalent to increasing the base of the entire noise monitor, so that the force-bearing area of ​​the noise monitor is larger, and the center of gravity of the larger base is not easily shifted, which can improve the stability of the noise monitor. At the same time, a fixing sleeve 73 is provided in the middle and lower part of the support rod 1, and a connecting rod 72 is connected between the fixing sleeve 73 and the support base plate 71, which can further improve the stability of the noise monitor and prevent the noise monitor from being blown down.

[0059] like Figure 1 、 Figure 5 、 Figure 6 and Figure 7 As shown, a drag reduction mechanism 8 is also included, which includes a curved plate 81 and a first guide rod 82. The left and right sides of the upper part of the display screen 3 are fixedly connected to the first guide rods 82, and the left and right sides of the lower part of the display screen 3 are also fixedly connected to the first guide rods 82. The curved plate 81 is slidably connected between the two upper first guide rods 82, and the curved plate 81 is also slidably connected between the two lower first guide rods 82.

[0060] like Figure 6 and Figure 7 As shown, a second compression spring 83 is also included. A second compression spring 83 is wound between the left and right sides of the arc plate 81 and the display screen 3. One end of the second compression spring 83 is connected to the arc plate 81, and the other end of the second compression spring 83 is connected to the display screen 3.

[0061] When the display screen 3 rotates backward under the meshing action of the gear 62 and the rack 61, the curved plate 81 will also be driven to rotate backward. Since the curved plate 81 is a bidirectional inclined surface, the display screen 3 drives the curved plate 81 to rotate backward, and the curved plate 81 will make the upper and lower sides of the rear part of the display screen 3 inclined, that is, the windward side of the display screen 3 is streamlined, which can reduce the driving force of the wind on the display screen 3 and reduce the resistance of the wind to the display screen 3. When strong wind comes into contact with the curved plate 81, the curved plate 81 on the windward side will move toward the side close to the display screen 3, and the second compression spring 83 will be compressed, which can play a buffering role. When the wind force decreases, the curved plate 81 will move and reset under the action of the second compression spring 83. In this way, the noise monitor can reduce the resistance of the strong wind to the display screen 3 through the curved plate 81, thereby improving the stability of the noise detector.

[0062] like Figure 1 and Figure 8 As shown, it also includes a weight-increasing mechanism 9, which includes a second guide rod 91, a third compression spring 92 and a pressure plate 93. The upper part of the outermost end of each support base plate 71 is fixedly connected to the second guide rod 91, and the second guide rods 91 are inserted into the support base plate 71. A pressure plate 93 is slidably connected to the second guide rod 91. A third compression spring 92 is wound between the pressure plate 93 and the second guide rod 91. The upper part of the third compression spring 92 is connected to the second guide rod 91, and the lower part of the third compression spring 92 is connected to the pressure plate 93.

[0063] In order to further enhance the stability of the noise monitor, people can move the pressure plate 93 upwards, and the third compression spring 92 is compressed, so that the space between the second guide rod 91 and the support base plate 71 can be vacated, making it convenient for people to add weights or other gravity objects, increase the weight at the support point, and make the center of gravity of the noise monitor more stable, thereby improving the stability of the noise monitor and preventing it from being blown over. When there is no wind, people can remove the weights or other gravity objects, and the pressure plate 93 will move downward and reset under the action of the third compression spring 92.

[0064] like Figure 1 and Figure 9 As shown, it also includes a fixing mechanism 10, which includes a fixing frame 101 and a limiting rod 102. The outermost end of each support base plate 71 is fixedly connected to the fixing frame 101 in the outward extension direction, and the outermost end of each fixing frame 101 is slidably connected to the limiting rod 102, and the limiting rod 102 passes through the outermost end of the fixing frame 101.

[0065] People can also move the limit rod 102 downward and press the limit rod 102 into the soil, so that the noise monitor can be fixed on the ground more stably to prevent strong winds from blowing the noise monitor down. When there is no wind, the limit rod 102 can be pulled out upward.

[0066] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A noise monitor for a construction site, comprising: A support rod (1) and a support frame (2), wherein the upper portion of the support rod (1) is slidably connected to the support frame (2); A display screen (3) is rotatably connected to the support frame (2); A first compression spring (4) is wound between the support frame (2) and the support rod (1), the upper portion of the first compression spring (4) is connected to the support frame (2), and the lower portion of the first compression spring (4) is connected to the support rod (1); A downward movement mechanism (5), wherein the lower portion of the support rod (1) is provided with a downward movement mechanism (5) for driving the display screen (3) to move downward; A rotating mechanism (6), wherein both the left and right sides of the support rod (1) are provided with a rotating mechanism (6) for changing the direction of the display screen (3); The downward movement mechanism (5) includes: A motor (51), wherein both left and right sides of the lower portion of the support rod (1) are connected to the motor (51); The winding wheel (52) is connected to the output shaft of the motor (51); A pull rope (53) is connected between the left and right sides of the winding wheel (52) and the lower part of the support frame (2), the upper part of the pull rope (53) is connected to the lower part of the support frame (2), and the lower part of the pull rope (53) is connected to the winding wheel (52); The rotating mechanism (6) comprises: A rack (61) is fixedly connected to the support rod (1), and the rack (61) is located on the left and right sides of the support frame (2); Gear (62), the left and right sides of the display screen (3) are fixedly connected with gears (62), the gears (62) are arranged on the left and right sides of the support frame (2), and the gears (62) and the racks (61) are meshed with each other; It also includes a drag reduction mechanism (8) that allows the windward surface of the display screen (3) to be streamlined.

2. A construction site noise monitor according to claim 1, characterized in that: It also includes a support mechanism (7) for supporting the bottom of the support rod (1), and the support mechanism (7) includes: A supporting base plate (71), wherein the four sides of the lower portion of the support rod (1) are connected to the supporting base plate (71); A fixing sleeve (73), the middle and lower parts of the support rod (1) are fixedly connected with the fixing sleeve (73); The connecting rod (72), the fixing sleeve (73) and the supporting base plate (71) are all connected with the connecting rod (72).

3. A construction site noise monitor according to claim 2, characterized in that: The drag reduction mechanism (8) includes: A first guide rod (82), the left and right sides of the upper portion of the display screen (3) are fixedly connected to the first guide rod (82), and the left and right sides of the lower portion of the display screen (3) are also fixedly connected to the first guide rod (82); The arc-shaped plate (81) is slidably connected between the two upper first guide rods (82), and the arc-shaped plate (81) is also slidably connected between the two lower first guide rods (82).

4. A construction site noise monitor according to claim 3, characterized in that: The device further comprises a weight-increasing mechanism (9) for adding weight to the bottom of the noise detector, wherein the weight-increasing mechanism (9) comprises: A second guide rod (91), the upper portion of the outermost end of each support base plate (71) is fixedly connected to the second guide rod (91), and the second guide rod (91) passes through the support base plate (71); A pressure plate (93) is slidably connected to the second guide rod (91); A third compression spring (92) is wound between the pressure plate (93) and the second guide rod (91). The upper portion of the third compression spring (92) is connected to the second guide rod (91), and the lower portion of the third compression spring (92) is connected to the pressure plate (93).

5. A construction site noise monitor according to claim 4, characterized in that: It also includes a fixing mechanism (10) for fixing the noise detector on the ground, and the fixing mechanism (10) includes: A fixing frame (101), wherein the outermost end of each supporting base plate (71) is fixedly connected to the fixing frame (101) in an outward extending direction; A limiting rod (102) is slidably connected to the outermost end of each fixing frame (101), and the limiting rod (102) is inserted into the outermost end of the fixing frame (101).

6. A construction site noise monitor according to claim 5, characterized in that: Also included are: A second compression spring (83) is wound between the left and right sides of the arc plate (81) and the display screen (3). One end of the second compression spring (83) is connected to the arc plate (81), and the other end of the second compression spring (83) is connected to the display screen (3).

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