Sensor capable of preventing electromagnetic interference

Abstract

The utility model belongs to the technical field of detection devices, and particularly relates to an anti-electromagnetic interference sensor which comprises a shell, the outer wall of the shell is movably connected with a connecting seat through a positioning block, the outer wall of the connecting seat is movably connected with a detachable shielding device, and the detachable shielding device is movably connected with a static electricity removing device. The detachable shielding device comprises a sleeving ring. According to the anti-electromagnetic interference sensor, through arrangement of a detachable shielding device, when a shielding layer is wrapped by the detachable shielding device, a rotating handle is rotated to drive a threaded rod to rotate in a penetrating block and drive two groups of rotating rings to move in opposite directions, and rotation of the rotating rings enables a positioning rod to slide in a sliding groove; when the sensor works, the positioning plate is driven to jointly wrap and clamp the shielding layer so that the shielding layer can be tightly attached to the shell, the shielding layer can effectively restrain electromagnetic interference from the external environment, the sensor can more accurately capture and transmit needed information through the shielding layer, and therefore the signal quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a sensor for preventing electromagnetic interference. Background Art

[0002] A sensor is a detection device that can sense the information being measured and convert it into an electrical signal or other required information output according to certain rules. It is the primary link in realizing automatic detection and automatic control. It can sense physical quantities such as force, temperature, light, sound, and chemical composition, and convert them into electrical quantities such as voltage and current or into the on-off of a circuit according to certain rules.

[0003] At present, in the prior art, a Chinese patent with announcement number CN212779304U discloses a sensor device, which is symmetrically arranged on both sides of the bracket through positioning protrusions to ensure that the impact of the material will not deviate from the position of the bracket during the injection molding process. However, in actual use, the device may cause noise or fluctuations in the signal output by the sensor due to electromagnetic interference, thereby reducing the measurement accuracy. In view of this, we propose a sensor that is anti-electromagnetic interference. Utility Model Content

[0004] The main purpose of the utility model is to provide a sensor for preventing electromagnetic interference, which can solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the electromagnetic interference-proof sensor proposed by the utility model comprises a shell, the outer wall of the shell is movably connected to a connection seat through a positioning block, a positioning protrusion is provided on the surface of the connection seat, the outer wall of the connection seat is movably connected to a detachable shielding device, the detachable shielding device is movably connected to a static electricity removal device, and the detachable shielding device comprises:

[0006] A sleeve ring, the outer wall of the connecting seat is sleeved with a sleeve ring;

[0007] A movable groove is provided on the outer wall of the sleeve ring.

[0008] Preferably, rotating rings are rotatably connected to both sides of the sleeve ring, and two groups of rotating rings are provided, and sliding grooves are provided on the outer walls of the rotating rings.

[0009] Preferably, a positioning rod is slidably connected in the sliding groove, and a positioning plate is fixedly connected to the positioning rod. By controlling the rotating ring, the positioning rod on the outer wall of the rotating ring drives the subsequent elements to slide, clamp and fix.

[0010] Preferably, the rotating ring is arranged on an outer wall of the movable groove and is fixedly connected to a connecting plate, and a through block is fixedly connected to the surface of the connecting plate, and the through block is threadedly connected to a threaded rod.

[0011] Preferably, one end of the threaded rod is fixedly connected to the limiting block, and the other end of the threaded rod is set as a rotating handle. A shielding layer is wrapped between the positioning plate and the shell. By rotating the rotating handle, the threaded rod is driven to rotate in the through block, driving the two sets of rotating rings to move toward each other.

[0012] Preferably, the static electricity removal device includes a groove, the outer wall of the shell is provided with a groove, and the groove is penetrated by a conductive rod, one end of the conductive rod arranged inside the shell is fixedly connected with a magnet, and the other end of the conductive rod is fixedly connected to a turntable, and the magnet is arranged inside the shell, close to the sensor device, to facilitate static electricity removal operation.

[0013] Preferably, a sliding groove is provided on the outer wall of the turntable, the top of the turntable is elastically connected to the sleeve through a spring, the inner wall of the sleeve is fixedly connected with a sliding column, and the sliding column is slidably connected in the sliding groove, when the shielding layer is wrapped by the detachable shielding device, the shielding layer squeezes the sleeve, and the sleeve slides in the sliding groove of the turntable to perform a lifting movement, and the turntable is rotated under force to drive the magnet connected to the conductive rod to move in a circle, and then reset by the spring.

[0014] The utility model provides a sensor for preventing electromagnetic interference, which has the following beneficial effects:

[0015] (1) The sensor for preventing electromagnetic interference is provided with a detachable shielding device. When the shielding layer is wrapped by the detachable shielding device, the rotating handle is turned to drive the threaded rod to rotate in the through-block, and the two sets of rotating rings move toward each other. The rotation of the rotating ring causes the positioning rod to slide in the sliding groove, driving the positioning plate to wrap and clamp the shielding layer so that it is close to the shell. The shielding layer can effectively suppress electromagnetic interference from the external environment, and the sensor can more accurately capture and transmit the required information, thereby improving the quality of the signal.

[0016] (2) The anti-electromagnetic interference sensor is provided with an anti-static device. When the shielding layer is wrapped, the shielding layer squeezes the sleeve. The sleeve slides in the sliding groove of the turntable to perform an up-and-down motion. The turntable is rotated under force to drive the magnet connected to the conductive rod to move in a circle. When the static electricity on the conductive rod passes through the changing electromagnetic field generated by the rotating magnet, the static electricity is neutralized, thereby improving the multifunctional use effect of the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0019] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the structure of the detachable shielding device of the utility model;

[0021] Figure 4 The structure of the static electricity removal device of the utility model is shown in FIG. Figure 1 ;

[0022] Figure 5 The structure of the static electricity removal device of the utility model is shown in FIG. Figure 2 ;

[0023] Figure 6 This is a schematic diagram of the partial explosion structure of the static electricity removal device of the utility model;

[0024] Figure 7 It is a partial structural schematic diagram of the static electricity removal device of the utility model.

[0025] Description of Figure Numbers:

[0026] 1. Shell; 2. Connecting seat; 3. Positioning block; 4. Positioning protrusion; 5. Removable shielding device; 51. Socket ring; 52. Movable groove; 53. Rotating ring; 54. Sliding groove; 55. Positioning rod; 56. Positioning plate; 57. Connecting plate; 58. Through block; 59. Threaded rod; 510. Limit block; 511. Shielding layer; 6. Anti-static device; 61. Groove; 62. Conductive rod; 63. Magnet; 64. Turntable; 65. Sliding groove; 66. Spring; 67. Sleeve; 68. Sliding column.

[0027] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] 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.

[0029] See also Figure 1-Figure 7The utility model proposes an electromagnetic interference protection sensor, including a shell 1, the outer wall of the shell 1 is movably connected to a connecting seat 2 through a positioning block 3, and a positioning protrusion 4 is provided on the surface of the connecting seat 2. The shell 1, the positioning block 3 and the positioning protrusion 4 are similar to the principles mentioned in the Chinese patent (a sensor device) with the authorization announcement number CN212779304U, and the effects achieved are the same. They are existing public technical means in this field and will not be elaborated herein. The outer wall of the connecting seat 2 is movably connected to a detachable shielding device 5, and the detachable shielding device 5 is movably connected to the static electricity removal device 6, and the detachable shielding device 5 includes a sleeve ring 51.

[0030] In the embodiment of the utility model, in order to improve the measurement accuracy of the sensor and improve the anti-electromagnetic interference performance of the sensor, specifically, the outer wall of the connecting seat 2 is sleeved with a sleeve ring 51, the outer wall of the sleeve ring 51 is provided with a movable groove 52, the two sides of the sleeve ring 51 are rotatably connected with a rotating ring 53, and the rotating ring 53 is provided with two groups, the outer wall of the rotating ring 53 is provided with a sliding groove 54, the sliding groove 54 is slidably connected with a positioning rod 55, the positioning rod 55 is fixedly connected with a positioning plate 56, and by controlling the rotating ring 53, the positioning plate 56 on the outer wall of the rotating ring 53 is fixedly connected with the positioning plate 56. The positioning rod 55 drives the subsequent elements to slide and clamp and fix. The rotating ring 53 is arranged on the outer wall of the movable groove 52 and is fixedly connected with a connecting plate 57, and the surface of the connecting plate 57 is fixedly connected with a through block 58, and the through block 58 is threadedly connected with a threaded rod 59, one end of the threaded rod 59 is fixedly connected to a limited position block 510, and the other end of the threaded rod 59 is arranged as a rotating handle. A shielding layer 511 is wrapped between the positioning plate 56 and the shell 1. By rotating the rotating handle, the threaded rod 59 is driven to rotate in the through block 58, and the two groups of rotating rings 53 are driven to move toward each other.

[0031] Furthermore, in order to be able to remove static electricity while preventing electromagnetic radiation and improve the multifunctional use effect of the sensor, specifically, the static electricity removal device 6 includes a groove 61, the outer wall of the shell 1 is provided with a groove 61, and the groove 61 is penetrated by a conductive rod 62, and the conductive rod 62 is arranged at one end inside the shell 1 and is fixedly connected to a magnet 63, and the other end of the conductive rod 62 is fixedly connected to a turntable 64, and the magnet 63 is arranged inside the shell 1, close to the sensor device, for easy static electricity removal operation, and the outer wall of the turntable 64 is provided with a sliding groove 65, and the upper part of the turntable 64 is elastically connected to the sleeve 67 by a spring 66, and the inner wall of the sleeve 67 is fixedly connected with a sliding column 68, and the sliding column 68 is slidably connected in the sliding groove 65. When the shielding layer 511 is wrapped by the detachable shielding device 5, the shielding layer 511 squeezes the sleeve 67, and the sleeve 67 slides in the sliding groove 65 of the turntable 64 to perform a lifting movement, and the turntable 64 is rotated under force to drive the magnet 63 connected to the conductive rod 62 to move in a circle, and then reset by the spring 66.

[0032] In the utility model, when in use, when the shielding layer 511 is wrapped by the detachable shielding device 5, by rotating the rotating handle, the threaded rod 59 is driven to rotate in the through block 58, driving the two sets of rotating rings 53 to move toward each other, and the rotation of the rotating ring 53 causes the positioning rod 55 to slide in the sliding groove 54, driving the positioning plate 56 to jointly wrap and clamp the shielding layer 511, so that it is close to the shell 1, and the shielding layer 511 can effectively suppress electromagnetic interference from the external environment. Through the existence of the shielding layer 511, the sensor can more accurately capture and transmit the required information, thereby improving the quality of the signal. While the shielding layer 511 is wrapped, the shielding layer 511 squeezes the sleeve 67, and the sleeve 67 slides in the sliding groove 65 of the turntable 64 to perform a lifting movement. The turntable 64 is rotated under force to drive the magnet 63 connected to the conductive rod 62 to move in a circle. When the static electricity on the conductive rod 62 passes through the changing electromagnetic field generated by the rotating magnet 63, the static electricity is neutralized, thereby improving the multifunctional use effect of the sensor.

[0033] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A sensor for preventing electromagnetic interference, comprising a housing (1), characterized in that: The outer wall of the shell (1) is movably connected to a connection seat (2) via a positioning block (3); a positioning protrusion (4) is provided on the surface of the connection seat (2); a detachable shielding device (5) is movably connected to the outer wall of the connection seat (2); the detachable shielding device (5) is movably connected to a static electricity removal device (6); and the detachable shielding device (5) comprises: A sleeve ring (51), the outer wall of the connecting seat (2) being sleeved with the sleeve ring (51); A movable groove (52), the outer wall of the sleeve ring (51) is provided with a movable groove (52).

2. The electromagnetic interference-proof sensor according to claim 1, characterized in that: The two sides of the sleeve ring (51) are rotatably connected with rotating rings (53), and the rotating rings (53) are provided in two groups. The outer walls of the rotating rings (53) are provided with sliding grooves (54).

3. The electromagnetic interference-proof sensor according to claim 2, characterized in that: A positioning rod (55) is slidably connected in the sliding groove (54), and a positioning plate (56) is fixedly connected to the positioning rod (55).

4. The electromagnetic interference-proof sensor according to claim 3, characterized in that: The rotating ring (53) is arranged on the outer wall of the movable groove (52) and is fixedly connected to a connecting plate (57), and the surface of the connecting plate (57) is fixedly connected to a penetrating block (58), and the penetrating block (58) is threadedly connected to a threaded rod (59).

5. The electromagnetic interference-proof sensor according to claim 4, characterized in that: One end of the threaded rod (59) is fixedly connected to a limit block (510), and the other end of the threaded rod (59) is arranged as a rotating handle. A shielding layer (511) is wrapped between the positioning plate (56) and the housing (1).

6. The electromagnetic interference-proof sensor according to claim 1, characterized in that: The static electricity removal device (6) comprises a groove (61), the outer wall of the shell (1) is provided with the groove (61), and the groove (61) is penetrated by a conductive rod (62), one end of the conductive rod (62) arranged inside the shell (1) is fixedly connected to a magnet (63), and the other end of the conductive rod (62) is fixedly connected to a turntable (64).

7. The electromagnetic interference-proof sensor according to claim 6, characterized in that: The outer wall of the rotating disk (64) is provided with a sliding groove (65), the upper part of the rotating disk (64) is elastically connected to the sleeve (67) via a spring (66), the inner wall of the sleeve (67) is fixedly connected with a sliding column (68), and the sliding column (68) is slidably connected in the sliding groove (65).

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