Magnetic sensor

Abstract

The utility model discloses a magnetic sensor which comprises a sensor body and a positioning seat, a limiting groove is formed in the upper side of the positioning seat, an inner supporting plate is rotatably clamped in the limiting groove, a positioning support is arranged on the upper side of the inner supporting plate, the sensor body is transversely clamped in the positioning support, and a first locking bolt is arranged in the middle of the upper side of the positioning support. According to the utility model, the sensor body is transversely clamped in the positioning bracket and is locked in the positioning bracket through the first locking bolt in the middle of the upper side of the positioning bracket, so that the sensor body is relatively high in installation stability and convenient and rapid to disassemble and assemble; and an elastic pressing plate is elastically and slidably arranged on the inner bottom wall of the positioning bracket, so that the lower sides of the two ends of the sensor body can be elastically pressed and positioned, and the stability of the sensor body mounted and fixed in the positioning bracket is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a magnetic sensor. Background Art

[0002] The working principle of the existing bistable magnetic switch is as follows: two magnets with opposite polarity and smaller polarity are set on the reed switch. Due to their existence, the contacts of the reed switch can maintain the existing state. However, due to the insufficient suction force of the two small magnets, the reed switch will not be attracted. It can only be attracted when it is affected by the same polarity magnetic field from the outside, and it will be disconnected when it is affected by the opposite magnetic field. For example, when the reed switch is not affected by the external magnetic field, the contacts are in the disconnected state. When the elevator car is running, the bistable magnetic switch meets a circular permanent magnet with an S pole fixed on the hidden frame on the car guide rail in the hoistway. When passing through the small N-pole magnet in the bistable magnetic switch, the magnetic fields are opposite due to the two encounters. At this time, the reed switch is still in the disconnected state. When passing through the extremely small magnet, due to the same direction of the magnetic field, the contacts of the reed switch are attracted by the magnetic force. When the S-pole circular permanent magnet leaves the steady-state magnetic switch, the contacts in the bistable magnetic switch are still attracted: when the external S-pole circular permanent magnet meets the bistable magnetic switch from right to left, when it passes through the S-pole small magnet, the magnetic field direction is the same, so the reed switch remains attracted. When it passes through the N-pole small magnet, the magnetic field direction is opposite, and as the force decreases, the state can no longer be maintained, causing the reed switch contacts to disconnect.

[0003] A magnetic sensor with application number 202110324551.3 in the prior art includes a sensor body and at least one limit device, wherein a card block can protrude from the opening of the expansion groove and be clamped against the inner wall of the groove. Through the configuration of the card block, the card block can be easily fixed to the inner wall of the groove by rotating the limit rotary rod, which facilitates the disassembly and assembly of the magnetic sensor and the change of the installation position. However, the stability of the sensor installation is general, the disassembly and assembly is inconvenient, and the horizontal installation angle of the sensor cannot be adjusted. Utility Model Content

[0004] The utility model aims to provide a magnetic sensor to solve the problems in the prior art that the sensor has general stability in installation and fixing, is inconvenient to assemble and disassemble, and cannot adjust the horizontal installation angle of the sensor.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a magnetic sensor, comprising a sensor body and a positioning seat, a limiting groove is provided inside the upper side of the positioning seat, and an inner support plate is rotatably clamped in the limiting groove, a positioning bracket is provided on the upper side of the inner support plate, and the sensor body is horizontally clamped inside the positioning bracket, a first locking bolt is provided in the middle part of the upper side of the positioning bracket, and an elastic pressure plate is elastically slidably provided on the inner bottom wall of the positioning bracket.

[0006] Furthermore, the limiting groove is configured as a circular groove, the inner supporting plate is configured as a circular plate, and the inner supporting plate is rotatably clamped with the limiting groove.

[0007] Furthermore, positioning plates are provided on both sides of the lower end of the positioning seat, and positioning holes are opened inside the positioning plates.

[0008] Furthermore, a locking hole is formed on a side wall of the positioning seat outside the limiting groove, and a second locking bolt is threadedly provided in the locking hole.

[0009] Furthermore, a groove is provided on the inner bottom wall of the positioning bracket, and a guide rod is provided in the groove, and one end of the elastic pressure plate is slidably arranged with the guide rod through a limiting sliding block and a guide sliding hole.

[0010] Furthermore, two guide rods are provided in parallel, and a spring is sleeved on the outer side of the lower end of the guide rod.

[0011] Furthermore, the elastic pressure plate is arranged vertically on the side wall of the positioning bracket, and an anti-slip pad is provided on the upper end of the elastic pressure plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model has the sensor body laterally clamped inside the positioning bracket and locked in the positioning bracket by a first locking bolt in the middle of the upper side of the positioning bracket, so that the sensor body has high installation stability and is convenient and quick to disassemble and assemble.

[0014] The utility model also provides an elastic pressure plate through elastic sliding of the inner bottom wall of the positioning bracket, which can elastically press and position the lower sides of both ends of the sensor body, which is beneficial to further improve the stability of the sensor body installed and fixed in the positioning bracket.

[0015] The utility model opens a limiting groove inside the upper side of the positioning seat, and an inner support plate is rotatably provided in the limiting groove, a positioning bracket is provided on the upper side of the inner support plate, the limiting groove is arranged as a circular groove, and a second locking bolt is provided in the inner thread of the locking hole, so that the inner support plate can be horizontally rotated and adjusted, thereby adjusting the horizontal installation angle of the sensor body, and the adjustment is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

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

[0018] Figure 2 This is a front view of the positioning seat and positioning bracket structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the elastic pressing plate structure of the utility model;

[0020] Figure 4 It is a principle diagram of the utility model.

[0021] In the figure: 1. sensor body; 2. positioning seat; 3. inner support plate; 4. limiting groove; 5. positioning bracket; 6. first locking bolt; 7. positioning plate; 8. positioning hole; 9. groove; 10. limiting slider; 11. guide rod; 12. elastic pressure plate; 13. anti-slip pad; 14. spring; 15. guide slide hole; 16. second locking bolt. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 In an embodiment of the utility model, a magnetic sensor includes a sensor body 1 and a positioning seat 2. A limiting groove 4 is provided inside the upper side of the positioning seat 2, and an inner support plate 3 is rotatably clamped in the limiting groove 4. A positioning bracket 5 is provided on the upper side of the inner support plate 3, and the sensor body 1 is horizontally clamped inside the positioning bracket 5. A first locking bolt 6 is provided in the middle part of the upper side of the positioning bracket 5, so that the sensor body 1 has high installation stability and is convenient and quick to disassemble. An elastic pressure plate 12 is elastically slidably provided on the inner bottom wall of the positioning bracket 5, which can elastically press and position the lower sides of both ends of the sensor body 1, which is beneficial to further improve the stability of the sensor body 1 installed and fixed in the positioning bracket 5.

[0024] Preferably, the limit groove 4 is set as a circular groove, the inner support plate 3 is set as a circular plate, and the inner support plate 3 and the limit groove 4 are rotatably clamped, so that the inner support plate 3 can be horizontally rotated and adjusted in the limit groove 4, thereby adjusting the horizontal installation angle of the sensor body 1.

[0025] Preferably, positioning plates 7 are provided on both sides of the lower end of the positioning seat 2, and positioning holes 8 are opened inside the positioning plates 7 to facilitate installation and fixing of the positioning plates 7 by bolts.

[0026] Preferably, a locking hole is provided on the side wall of the positioning seat 2 outside the limiting groove 4, and a second locking bolt 16 is provided in the inner thread of the locking hole, so that the inner support plate 3 can be locked after rotation adjustment, and the adjustment is convenient and quick.

[0027] Preferably, a groove 9 is provided on the inner bottom wall of the positioning bracket 5, and a guide rod 11 is provided in the groove 9. One end of the elastic pressure plate 12 is slidably arranged with the guide rod 11 through a limiting slider 10 and a guide slide hole 15. Two guide rods 11 are provided in parallel. A spring 14 is sleeved on the outer side of the lower end of the guide rod 11, so that the elastic pressure plate 12 can be elastically slidably set on the inner bottom wall of the positioning bracket 5 through the limiting slider 10, and the structural stability of the elastic connection is relatively high.

[0028] Preferably, the elastic pressure plate 12 is arranged vertically on the side wall of the positioning bracket 5 , and an anti-skid pad 13 is provided on the upper end of the elastic pressure plate 12 , which increases the anti-skid property of the upper part of the elastic pressure plate 12 and helps to improve the stability of the sensor installed on the elastic pressure plate 12 .

[0029] The working principle and use process of the utility model are as follows: when in use, the positioning seat 2 is pre-installed in the sensor detection use position through the positioning plate 7, and then the sensor body 1 is horizontally clamped inside the positioning bracket 5, and locked in the positioning bracket 5 through the first locking bolt 6 in the middle of the upper side of the positioning bracket 5, so that the sensor body 1 has high installation stability and is convenient and quick to disassemble; and an elastic pressure plate 12 is elastically slidably provided on the inner bottom wall of the positioning bracket 5, which can elastically press and hold the lower sides of the two ends of the sensor body 1 for positioning, which is beneficial to further improve the stability of the sensor body 1 installed and fixed in the positioning bracket 5.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A magnetic sensor, comprising a sensor body (1) and a positioning seat (2), characterized in that: A limiting groove (4) is provided inside the upper side of the positioning seat (2), and an inner support plate (3) is rotatably clamped in the limiting groove (4), a positioning bracket (5) is provided on the upper side of the inner support plate (3), and the sensor body (1) is transversely clamped inside the positioning bracket (5), a first locking bolt (6) is provided in the middle of the upper side of the positioning bracket (5), and an elastic pressure plate (12) is elastically slidably provided on the inner bottom wall of the positioning bracket (5).

2. A magnetic sensor according to claim 1, characterized in that: The limiting groove (4) is configured as a circular groove, the inner support plate (3) is configured as a circular plate, and the inner support plate (3) and the limiting groove (4) are rotatably locked.

3. A magnetic sensor according to claim 2, characterized in that: Positioning plates (7) are provided on both sides of the lower end of the positioning seat (2), and positioning holes (8) are provided inside the positioning plates (7).

4. A magnetic sensor according to claim 2, characterized in that: A locking hole is provided on the side wall of the positioning seat (2) outside the limiting groove (4), and a second locking bolt (16) is threadedly provided inside the locking hole.

5. A magnetic sensor according to claim 1, characterized in that: The inner bottom wall of the positioning bracket (5) is provided with a groove (9), and a guide rod (11) is provided in the groove (9). One end of the elastic pressure plate (12) is slidably arranged with the guide rod (11) via a limiting slider (10).

6. A magnetic sensor according to claim 5, characterized in that: Two guide rods (11) are provided in parallel, and a spring (14) is sleeved on the outer side of the lower end of the guide rod (11).

7. A magnetic sensor according to claim 1, characterized in that: The elastic pressing plate (12) is arranged vertically on the side wall of the positioning bracket (5), and an anti-slip pad (13) is provided on the upper end of the elastic pressing plate (12).

Images