External noise detector

Abstract

The utility model relates to the technical field of detection devices, and discloses an external noise detector, which comprises a noise detector, and the middle part of the right surface of the noise detector is fixedly connected with a fixed block. Through the arrangement of the noise detector, the protection plate, the locking block, the semicircular block and the movable locking block, firstly, an operator closes the whole protection plate to enable the locking block to be in contact with the fixed block, then the pull handle is pulled upwards, the movable locking block can reach the position above the semicircular block at the moment, then the operator rotates the pull handle, and the movable locking block is locked. At the moment, a connecting block and a rotating shaft integrally rotate along with a pull handle, when a semicircular block makes contact with a movable locking block, the semicircular block and the movable locking block are matched, so that a protection plate and a locking block are integrally fixed to the current position, and the noise detector is prevented from being damaged due to the fact that the protection plate shields the noise detector. Therefore, the display screen of the noise detector cannot be scratched and damaged due to long-term exposure and friction.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, and more specifically, to an external noise detector. Background Art

[0002] Noise monitoring is a monitoring activity for sounds and their sources that interfere with people's study, work and life. It mainly includes road traffic noise monitoring and regional environmental noise monitoring. The main instruments used are sound level meters and spectrum analyzers. The results of noise monitoring can be used to analyze the current status and changing trends of noise pollution, thereby providing basic data for the planning management and comprehensive treatment of noise pollution.

[0003] When operators conduct noise detection, they often use noise detectors to digitize the environmental noise in the area, thereby providing data reference for regional noise control work. In actual use, although the existing noise detectors have basic detection functions, the display screens in the existing noise detectors are generally exposed to the outside. After being placed for a long time, the surface of the display screen will often be scratched and damaged due to friction, which seriously affects the operator's reading of the data. Therefore, it is necessary to improve it. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an external noise detector, which has the advantage of protecting the screen.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an external noise detector, comprising:

[0006] A noise detector, wherein a fixing block is fixedly connected to the middle of the right surface of the noise detector, and a protection plate is hingedly connected to the left end of the noise detector;

[0007] A locking block, wherein the left surface of the locking block is fixedly connected to the middle portion of the right surface of the protection plate, and the rear surface of the locking block is movably connected to the front surface of the fixing block;

[0008] A fixing mechanism, wherein the fixing mechanism is arranged inside the locking block;

[0009] In which, the fixing mechanism includes a semicircular block, the outer surface of the semicircular block is fixedly connected to the bottom of the inner surface of the locking block, the lower surface of the semicircular block is movably connected to the upper surface of the fixed block, the upper surface of the semicircular block is movably connected with a rotating shaft, the bottom end of the rotating shaft sequentially passes through the semicircular block and the fixed block and extends to the bottom of the fixed block and is fixedly connected with a connecting block, the top end of the outer surface of the rotating shaft is fixedly connected to a movable locking block located above the semicircular block, the lower surface of the movable locking block is movably connected to the upper surface of the semicircular block, and the rotating shaft rotates to release the cooperation between the movable locking block and the semicircular block and fix the protective plate as a whole.

[0010] As a preferred technical solution of the utility model, a pull handle is fixedly connected to the right end of the connecting block, a spring is movably sleeved on the outer surface of the rotating shaft, the top end of the spring is fixedly connected to the lower surface of the fixed block, and the bottom end of the spring is fixedly connected to the upper surface of the connecting block.

[0011] As a preferred technical solution of the utility model, a sponge cover is fixedly connected to the middle of the upper surface of the noise detector, and a mounting block is fixedly connected to the upper side of the rear surface of the noise detector.

[0012] As a preferred technical solution of the utility model, the inner surface on the left side of the mounting block is movably connected to a first connecting frame, and the inner surface on the right side of the mounting block is movably connected to a second connecting frame.

[0013] As a preferred technical solution of the utility model, the top ends of the rear surfaces of the No. 1 connecting frame and the No. 2 connecting frame are fixedly connected with protective shells, the number of the protective shells is two, and the positions of the two protective shells are symmetrical about the sponge cover.

[0014] As a preferred technical solution of the utility model, an active connecting rod is hinged to the bottom end of the outer surface of the No. 1 connecting frame, a transmission connecting rod is hinged to the other end of the active connecting rod, the middle part of the transmission connecting rod is hinged to the middle part of the outer surface of the mounting block, a driven connecting rod is hinged to the other end of the transmission connecting rod, and the other end of the driven connecting rod is hinged to the bottom end of the outer surface of the No. 2 connecting frame.

[0015] As a preferred technical solution of the utility model, the left surface of the mounting block is movably connected with a threaded rod, the right end of the threaded rod sequentially passes through the mounting block and the No. 1 connecting frame and extends to the interior of the mounting block, the outer surface of the threaded rod and the inner surface of the No. 1 connecting frame are threadedly sleeved, and the left end of the threaded rod is fixedly connected with a knob.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] 1. The utility model provides a noise detector, a protection plate, a locking block, a semicircular block and a movable locking block. First, the operator closes the protection plate as a whole to make the locking block contact with the fixed block, and then pulls the handle upwards. At this time, the movable locking block comes to the top of the semicircular block. Then the operator rotates the handle. At this time, the connecting block and the rotating shaft as a whole rotate with the handle. When the semicircular block and the movable locking block contact, the semicircular block and the movable locking block cooperate with each other, which fixes the protection plate and the locking block as a whole in the current position. Since the protection plate blocks the noise detector at this time, the display screen of the noise detector will not be scratched or damaged due to long-term exposure and friction, thereby improving the service life of the noise detector.

[0018] 2. The utility model provides a mounting block, a No. 1 connecting frame, a No. 2 connecting frame, a protective shell and a threaded rod. When the operator turns the knob, the threaded rod starts to rotate driven by the knob. At the same time, the rotation of the threaded rod drives the No. 1 connecting frame to start moving to the right. The movement of the No. 1 connecting frame drives the active connecting rod, so that the active connecting rod drives the transmission connecting rod to rotate while rotating. The driven connecting rod rotates under the drive of the transmission connecting rod, so that the other end of the driven connecting rod starts to drive the No. 2 connecting frame to move to the left as a whole. As a result, the No. 2 connecting frame as a whole and the No. 1 connecting frame as a whole start to move toward each other, which eventually causes the two protective shells to contact each other. At this time, the two protective shells seal the sponge cover, thereby preventing the sponge cover from weathering and powdering due to long-term exposure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the back of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the side surface of the utility model;

[0022] Figure 4 This is a schematic cross-sectional structural diagram of the locking block of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the movable locking block of the utility model;

[0024] Figure 6 This is a schematic diagram of the unfolded structure of the protection plate of the utility model;

[0025] Figure 7 for Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0026] In the figure: 1. Noise detector; 2. Fixed block; 3. Protection plate; 4. Locking block; 5. Semicircular block; 6. Rotating shaft; 7. Movable locking block; 8. Connecting block; 9. Pull handle; 10. Spring; 11. Sponge cover; 12. Mounting block; 13. Connecting frame No. 1; 14. Connecting frame No. 2; 15. Protective shell; 16. Active connecting rod; 17. Transmission connecting rod; 18. Driven connecting rod; 19. Knob; 20. Threaded rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figures 1 to 7 As shown, the utility model provides an external noise detector, comprising:

[0029] A noise detector 1, a fixing block 2 is fixedly connected to the middle of the right surface of the noise detector 1, and a protection plate 3 is hingedly connected to the left end of the noise detector 1;

[0030] A locking block 4, wherein the left surface of the locking block 4 is fixedly connected to the middle portion of the right surface of the protection plate 3, and the rear surface of the locking block 4 is movably connected to the front surface of the fixing block 2;

[0031] A fixing mechanism, which is arranged inside the locking block 4;

[0032] Among them, the fixing mechanism includes a semicircular block 5, the outer surface of the semicircular block 5 is fixedly connected to the bottom of the inner surface of the locking block 4, the lower surface of the semicircular block 5 and the upper surface of the fixed block 2 are movably connected, the upper surface of the semicircular block 5 is movably connected with a rotating shaft 6, the bottom end of the rotating shaft 6 passes through the semicircular block 5 and the fixed block 2 in sequence and extends to the bottom of the fixed block 2 and is fixedly connected with a connecting block 8, the top end of the outer surface of the rotating shaft 6 is fixedly connected with a movable locking block 7 located above the semicircular block 5, the lower surface of the movable locking block 7 is movably connected to the upper surface of the semicircular block 5, and the rotating shaft 6 rotates to release the movable locking block 7 from cooperating with the semicircular block 5 and fix the protective plate 3 as a whole.

[0033] When the rotating shaft 6 rotates, the movable locking block 7 will rotate along with the rotating shaft 6. When the movable locking block 7 rotates to the left side of the semicircular block 5, the cooperation between the movable locking block 7 and the semicircular block 5 will be released. At the same time, the fixation of the locking block 4 as a whole and the protective plate 3 will also be released. At this time, the operator can unfold the protective plate 3 as a whole to use the noise detector 1 for noise detection.

[0034] Among them, the right end of the connecting block 8 is fixedly connected with a pull handle 9, the outer surface of the rotating shaft 6 is movably sleeved with a spring 10, the top end of the spring 10 is fixedly connected to the lower surface of the fixed block 2, and the bottom end of the spring 10 is fixedly connected to the upper surface of the connecting block 8.

[0035] Due to the design of the spring 10 , when the lower surface of the movable locking block 7 contacts the upper surface of the semicircular block 5 , the entire rotating shaft 6 will be tightened in the current position under the elastic force of the spring 10 and will not rotate.

[0036] A sponge cover 11 is fixedly connected to the middle of the upper surface of the noise detector 1 , and a mounting block 12 is fixedly connected to the upper side of the rear surface of the noise detector 1 .

[0037] The sponge cover 11 is composed of a sound-absorbing sponge, which can absorb noise, making it easier for the noise detector 1 to read and analyze the noise.

[0038] The inner surface on the left side of the mounting block 12 is movably connected to a first connecting frame 13 , and the inner surface on the right side of the mounting block 12 is movably connected to a second connecting frame 14 .

[0039] Due to the design of the mounting block 12 , the first connecting frame 13 and the second connecting frame 14 can move left and right along the inner surface of the mounting block 12 .

[0040] Among them, the top ends of the rear surfaces of the No. 1 connecting frame 13 and the No. 2 connecting frame 14 are fixedly connected with protective shells 15 . There are two protective shells 15 , and the positions of the two protective shells 15 are symmetrical about the sponge cover 11 .

[0041] The two protective shells 15 move toward each other to wrap the sponge cover 11 to prevent the sponge cover 11 from weathering and powdering due to long-term storage, thereby affecting the overall detection effect of the noise detector 1.

[0042] Among them, an active connecting rod 16 is hinged at the bottom end of the outer surface of the No. 1 connecting frame 13, and a transmission connecting rod 17 is hinged at the other end of the active connecting rod 16. The middle part of the transmission connecting rod 17 is hinged to the middle part of the outer surface of the mounting block 12, and the other end of the transmission connecting rod 17 is hinged to a driven connecting rod 18. The other end of the driven connecting rod 18 is hinged to the bottom end of the outer surface of the No. 2 connecting frame 14.

[0043] When the No. 1 connecting frame 13 moves, the active connecting rod 16 will start to rotate and drive the transmission connecting rod 17 to rotate, and the rotation of the transmission connecting rod 17 will drive the driven connecting rod 18, so that the other end of the driven connecting rod 18 starts to drive the No. 2 connecting frame 14 as a whole, so that the No. 2 connecting frame 14 as a whole starts to move towards the No. 1 connecting frame 13 as a whole.

[0044] Among them, the left surface of the mounting block 12 is movably connected with a threaded rod 20, the right end of the threaded rod 20 passes through the mounting block 12 and the No. 1 connecting frame 13 in sequence and extends to the interior of the mounting block 12, the outer surface of the threaded rod 20 and the inner surface of the No. 1 connecting frame 13 are threadedly sleeved, and the left end of the threaded rod 20 is fixedly connected with a knob 19.

[0045] When the threaded rod 20 rotates, the threaded rod 20 drives the entire first connecting frame 13 , so that the entire first connecting frame 13 starts to move to the right.

[0046] The working principle and use process of this utility model:

[0047] When the operator needs to use the noise detector 1 to perform noise detection, the operator first turns the knob 19. The rotation of the knob 19 will drive the threaded rod 20 to rotate, and the rotation of the threaded rod 20 will drive the No. 1 connecting frame 13, so that the No. 1 connecting frame 13 begins to move to the left under the limit of the inner surface of the mounting block 12, and the active connecting rod 16 will begin to rotate with the movement of the No. 1 connecting frame 13, so that the other end of the active connecting rod 16 drives the transmission connecting rod 17. At this time, the transmission connecting rod 17 will begin to rotate with the middle of the mounting block 12 as the axis, and the other end of the transmission connecting rod 17 will drive the driven connecting rod 18 to rotate, so that the other end of the driven connecting rod 18 begins to drive the No. 2 connecting frame 14 as a whole, so that the No. 2 connecting frame 14 as a whole begins to move to the right under the limit of the inner surface of the mounting block 12.

[0048] Due to the opposite movement of the No. 2 connecting frame 14 and the No. 1 connecting frame 13 as a whole, the shielding of the two protective shells 15 on the sponge cover 11 will be gradually released, so that the sponge cover 11 can absorb external noise normally. Then the operator rotates the pull handle 9. The rotation of the pull handle 9 will drive the connecting block 8 and the rotating shaft 6 to start rotating as a whole. When the movable locking block 7 rotates to the left side of the semicircular block 5, the cooperation between the movable locking block 7 and the semicircular block 5 is released, and the rotation lock of the protective plate 3 and the locking block 4 as a whole will be released. At this time, the operator can unfold the protective plate 3 as a whole, and detect the noise of the surrounding environment through the noise detector 1 and the sponge cover 11, so as to obtain the noise data of the current environment.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An external noise detector, characterized in that: Included are: A noise detector (1), wherein a fixing block (2) is fixedly connected to the middle of the right surface of the noise detector (1), and a protection plate (3) is hingedly connected to the left end of the noise detector (1); A locking block (4), wherein the left surface of the locking block (4) is fixedly connected to the middle portion of the right surface of the protection plate (3), and the rear surface of the locking block (4) is movably connected to the front surface of the fixing block (2); A fixing mechanism, the fixing mechanism being arranged inside the locking block (4); The fixing mechanism comprises a semicircular block (5), the outer surface of the semicircular block (5) is fixedly connected to the bottom of the inner surface of the locking block (4), the lower surface of the semicircular block (5) is movably connected to the upper surface of the fixing block (2), the upper surface of the semicircular block (5) is movably connected to a rotating shaft (6), the bottom end of the rotating shaft (6) passes through the semicircular block (5) and the fixing block (2) in sequence and extends to the bottom of the fixing block (2) and is fixedly connected to a connecting block (8), the top end of the outer surface of the rotating shaft (6) is fixedly connected to a movable locking block (7) located above the semicircular block (5), the lower surface of the movable locking block (7) is movably connected to the upper surface of the semicircular block (5), and the rotating shaft (6) rotates to release the movable locking block (7) from cooperating with the semicircular block (5) and fix the protective plate (3) as a whole.

2. The external noise detector according to claim 1, characterized in that: The right end of the connecting block (8) is fixedly connected to a pull handle (9), the outer surface of the rotating shaft (6) is movably sleeved with a spring (10), the top end of the spring (10) is fixedly connected to the lower surface of the fixed block (2), and the bottom end of the spring (10) is fixedly connected to the upper surface of the connecting block (8).

3. The external noise detector according to claim 1, characterized in that: A sponge cover (11) is fixedly connected to the middle of the upper surface of the noise detector (1), and a mounting block (12) is fixedly connected to the upper side of the rear surface of the noise detector (1).

4. The external noise detector according to claim 3, characterized in that: The inner surface on the left side of the mounting block (12) is movably connected to a first connecting frame (13), and the inner surface on the right side of the mounting block (12) is movably connected to a second connecting frame (14).

5. The external noise detector according to claim 4, characterized in that: The top ends of the rear surfaces of the first connecting frame (13) and the second connecting frame (14) are fixedly connected with protective shells (15), the number of the protective shells (15) is two, and the positions of the two protective shells (15) are symmetrical with respect to the sponge cover (11).

6. The external noise detector according to claim 4, characterized in that: An active connecting rod (16) is hinged to the bottom end of the outer surface of the No. 1 connecting frame (13), and a transmission connecting rod (17) is hinged to the other end of the active connecting rod (16). The middle part of the transmission connecting rod (17) is hinged to the middle part of the outer surface of the mounting block (12), and the other end of the transmission connecting rod (17) is hinged to a driven connecting rod (18). The other end of the driven connecting rod (18) is hinged to the bottom end of the outer surface of the No. 2 connecting frame (14).

7. The external noise detector according to claim 3, characterized in that: The left surface of the mounting block (12) is movably connected to a threaded rod (20); the right end of the threaded rod (20) passes through the mounting block (12) and the No. 1 connecting frame (13) in sequence and extends to the interior of the mounting block (12); the outer surface of the threaded rod (20) and the inner surface of the No. 1 connecting frame (13) are threadedly sleeved; the left end of the threaded rod (20) is fixedly connected to a knob (19).

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