Small-sized acceleration sensor insulated to ground

Abstract

The utility model relates to the technical field of sensors, in particular to a small-sized ground insulation acceleration sensor, which comprises a sensor main body, a base and a protective layer, the protective layer is fixedly arranged at the lower end of the base, the sensor main body is movably arranged above the base, an acceleration sensor connection structure is arranged on the inner side of the base, and the acceleration sensor connection structure is connected with the base. An acceleration sensor fixing mistaken touch prevention structure is arranged in the base. According to the small-sized acceleration sensor insulated to the ground, the movable rod can be manually lifted upwards under the driving of the pulling block when the movable rod loses limitation, and the connecting block can drive the conductive module to slide to be in butt joint with the terminal through the pushing frame extending out from the front end, so that the base at the lower end of the sensor main body is conveniently adsorbed on the surface of iron metal; and meanwhile, the limiting rod is inserted back to the inner side of the through hole, and the problem that the rotating ring is easily touched by mistake is solved through a structure capable of being locked and fixed on the inner side, so that the use effect of the small-sized acceleration sensor insulated to the ground is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a small acceleration sensor which is insulated from the ground. Background Art

[0002] Insulation from the ground means isolating the sensor from the ground. In the field of vibration testing, the test piece is often driven by a motor or placed on a device driven by a motor. There may be electrical interference on its surface. Directly installing the sensor will affect the data collection results. Isolating the test sensor from the test to avoid interference with the test signal has always been a necessary operation for test engineers.

[0003] For example, the publication number "CN220711865U" is a small ground-insulated acceleration sensor, which drives the slider to rotate by rotating the swivel ring 90 degrees, so that the slider overlaps and conflicts with the conductive block. At this time, the slider will insulate the conductive block, making the electromagnetic block in a power-off state, so that the sensor body can be easily removed from the motor equipment, effectively achieving the effect of quick disassembly and assembly of the insulating base. However, the existing small ground-insulated acceleration sensor only needs to rotate the outer swivel ring 90 degrees to complete the power-off disassembly effect, but the swivel ring is completely arranged on the outside of the acceleration sensor. In actual use, it is very easy for the operator to accidentally touch it. When an accidental touch occurs, the lack of a fixed and easy-to-move swivel ring is easy to rotate. Therefore, the small ground-insulated acceleration sensor is prone to power failure or accidental connection in actual operation, which will affect the use effect of the small ground-insulated acceleration sensor. Utility Model Content

[0004] The utility model aims to solve the problem that the use effect of a small-sized acceleration sensor insulated from the ground is not good, and proposes a small-sized acceleration sensor insulated from the ground.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A small ground-insulated acceleration sensor is designed, comprising a sensor body, a base and a protective layer, wherein the protective layer is fixedly mounted on the lower end of the base, the sensor body is movably mounted above the base, an acceleration sensor connection structure is provided on the inner side of the base, an acceleration sensor fixed anti-mistouch structure is provided inside the base, and a wire connection structure is provided on the top of the sensor body.

[0007] Preferably, the acceleration sensor connection structure includes a terminal and an electromagnetic block, the electromagnetic block is fixedly installed on the inner bottom end of the base, a guide column is fixedly installed above the electromagnetic block, a conductive block is slidably connected to the outer side of the guide column, the terminal is fixedly installed above the base, and a port is threadedly connected to the outer side of the terminal.

[0008] Preferably, the port is fixedly opened at the bottom end of the sensor body, and the top end of the conductive block is movably connected to the lower end of the terminal.

[0009] Preferably, the anti-misoperation structure for fixing the acceleration sensor includes a pulling block and a movable rod. The two movable rods are slidably connected to both sides inside the base. A connecting block is fixedly installed at the bottom end of the inner wall of the two movable rods. The ends of the two connecting blocks are fixedly connected to a pushing frame. Two through holes are fixedly opened inside the two movable rods. A limiting rod is movably connected inside the through hole. The two limiting rods are movably connected to the inner side of the base. The top ends of the two movable rods are fixedly installed with a pulling block.

[0010] Preferably, the wire connection structure includes a docking head and a connecting sleeve. The docking head is fixedly installed at the top end of the sensor body. A plurality of trapezoidal rings are fixedly installed on the outer wall of the docking head. The connecting sleeve is movably installed outside the docking head. A plurality of trapezoidal grooves are fixedly opened on the inner wall of the connecting sleeve. The inside of the plurality of trapezoidal grooves is movably connected to the outside of the trapezoidal rings.

[0011] Preferably, the top end of the connecting sleeve is fixedly connected to a wire. The bottom end of the wire is communicated with the top end of the docking head. The lower end of the wire is electrically connected to the sensor body.

[0012] For a small ground-insulated acceleration sensor proposed by the present utility model, the beneficial effects are as follows: By the operator first pulling out the limiting rod from the inside of the through hole, the movable rod can be lifted manually under the drive of the pulling block without restriction. The connecting block can drive the conductive block to slide and dock with the terminal through the pushing frame extending from the front end, facilitating the adsorption of the base at the lower end of the sensor body on the surface of the iron metal. Similarly, at this time, the limiting rod is inserted back into the inside of the through hole again. Through the structure that can be locked and fixed inside, the problem that the rotating ring is prone to misoperation is solved, and the use effect of the small ground-insulated acceleration sensor is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a three-dimensional schematic diagram of the present utility model;

[0014] Figure 2 is Figure 1 the front cross-sectional view of

[0015] Figure 3 is Figure 1 the top view of

[0016] Figure 4 is Figure 2 the enlarged cross-sectional view of part A in

[0017] Figure 5For Figure 2 The enlarged cross-sectional view of part B in

[0018] Figure 6 For Figure 2 The enlarged cross-sectional view of part C in

[0019] In the figure: 1. Sensor main body, 2. Base, 3. Protective layer, 4. Conducting wire, 5. Acceleration sensor connection structure, 51. Guide post, 52. Conductive block, 53. Port, 54. Terminal, 55. Electromagnetic block, 6. Acceleration sensor fixing and anti-misoperation structure, 61. Pulling block, 62. Movable rod, 63. Through hole, 64. Limit rod, 65. Connecting block, 66. Pushing frame, 7. Conducting wire connection structure, 71. Docking head, 72. Connecting sleeve, 73. Trapezoidal groove, 74. Trapezoidal ring. Specific implementation mode

[0020] The present utility model will be further described below with reference to the accompanying drawings:

[0021] Embodiment 1:

[0022] Please refer to Figures 1-6 : In this embodiment, a small ground-insulated acceleration sensor includes a sensor main body 1, a base 2 and a protective layer 3. The protective layer 3 is fixedly installed at the lower end of the base 2. The protective layer 3 is made of a circle of plastic material surrounding the outermost lower end of the base 2. The plastic layer can protect the electromagnetic block 55 and the conductive block 52 inside from being easily knocked and damaged. The sensor main body 1 is movably installed above the base 2. The sensor main body 1 has the same specification and model as the sensor main body 1 used in a small ground-insulated acceleration sensor with the publication number of "CN220711865U" in the comparative document. The specific composition and working principle are omitted here. An acceleration sensor connection structure 5 is provided inside the base 2, an acceleration sensor fixing and anti-misoperation structure 6 is provided inside the base 2, and a conducting wire connection structure 7 is provided at the top end of the sensor main body 1.

[0023] The acceleration sensor connection structure 5 includes a terminal 54 and an electromagnetic block 55. The electromagnetic block 55 is fixedly installed at the inner bottom end of the base 2. Above the electromagnetic block 55, a guide post 51 is fixedly installed. A conductive block 52 is slidably connected to the outside of the guide post 51. The terminal 54 is fixedly installed above the base 2. The outside of the terminal 54 is provided with threads, and it can be connected by rotation after the thread groove inside the port 53 fits with the threads outside the terminal 54. The terminal 54 can be docked and installed with the port 53, so that the bottom end of the sensor body 1 can be docked with the base 2. The outside of the terminal 54 is threadedly connected to the port 53, and the port 53 is fixedly opened at the bottom end of the sensor body 1. The top end of the conductive block 52 is movably connected to the lower end of the terminal 54. The conductive block 52 is made of a metal copper tube with good electrical conductivity. The conductive block 52 can slide up and down along the guide post 51. When the conductive block 52 slides to the topmost position, the top end of the conductive block 52 contacts the terminal 54 to connect the port 53 with the electromagnetic block 55 at the lower end, so as to achieve the effect of the docking path. Conversely, when the conductive block 52 slides down and no longer contacts the terminal 54, the electromagnetic block 55 will be disconnected from the port 53.

[0024] The acceleration sensor fixed anti-misoperation structure 6 includes a pulling block 61 and a movable rod 62. The two movable rods 62 are slidably connected to both sides inside the base 2. At the inner bottom ends of the inner walls of the two movable rods 62, a connecting block 65 is fixedly installed. The ends of the two connecting blocks 65 are fixedly connected to a pushing frame 66. When it is necessary to control the electromagnetic block 55 to be energized to generate suction, the operator first pulls out the limiting rod 64 from the inside of the through hole 63, so that the movable rod 62 loses its restriction and can be manually lifted upward under the drive of the pulling block 61. At this time, the lifted movable rod 62 drives the lower connecting block 65 to move upward. The connecting block 65 can drive the conductive block 52 to slide and dock with the terminal 54 through the pushing frame 66 extending from the front end. The electromagnet 55 can generate suction under the supply of the circuit, which is convenient for adsorbing the base 2 at the lower end of the sensor body 1 on the surface of the iron metal. Similarly, at this time, the limiting rod 64 is inserted back into the inside of the through hole 63 again, which can fix the positions of the movable rod 62 and the conductive block 52. Two through holes 63 are fixedly opened inside the two movable rods 62. The limiting rod 64 is movably connected inside the through hole 63. The two limiting rods 64 are movably connected to the inside of the base 2. The top ends of the two movable rods 62 are fixedly installed with a pulling block 61;

[0025] When it is necessary to control the electromagnetic block 55 to be energized to generate suction force, the operator first pulls out the limit rod 64 from the inner side of the through hole 63. In this way, the movable rod 62 loses its restriction and can be manually lifted upward under the drive of the pulling block 61. At this time, the lifted movable rod 62 drives the lower connecting block 65 to move upward. The connecting block 65 can drive the conductive block 52 to slide through the pushing frame 66 extending from the front end to be docked with the terminal 54. The electromagnet 55 can generate suction force under the power supply of the circuit, which is convenient to adsorb the base 2 at the lower end of the sensor body 1 on the surface of the iron metal. Similarly, at this time, the limit rod 64 is inserted back into the inner side of the through hole 63, which can fix the positions of the movable rod 62 and the conductive block 52. Through the structure that can be locked and fixed inside, the problem that the rotating ring is easily touched by mistake is avoided, and the use effect of the small ground-insulated acceleration sensor is improved.

[0026] Working principle:

[0027] When using the small ground-insulated acceleration sensor, the base 2 at the lowest end of the small ground-insulated acceleration sensor is installed on the motor equipment to be detected, and is fixed by the suction force generated after the electromagnet 55 inside the base 2 is energized. Similarly, it can also be quickly disassembled through the electromagnet 55 that loses magnetic force;

[0028] The protective layer 3 is fixedly installed at the lower end of the base 2. The protective layer 3 is made of a circle of plastic material surrounding the outermost lower end of the base 2. The plastic layer can protect the electromagnetic block 55 and the conductive block 52 inside from being easily knocked and damaged;

[0029] The adsorption and fixation working principle of the small ground-insulated acceleration sensor:

[0030] Then, the outer side of the terminal 54 is provided with threads, and it can be connected by rotating after the threads inside the port 53 and the threads outside the terminal 54 are fitted. The terminal 54 can be docked and installed with the port 53, so that the bottom end of the sensor body 1 can be docked with the base 2. The conductive block 52 is made of a metal copper tube with good electrical conductivity. The conductive block 52 can slide up and down along the guide post 51. When the conductive block 52 slides to the topmost end, the top end of the conductive block 52 contacts the terminal 54, and the port 53 can be connected to the lower electromagnetic block 55, so as to achieve the effect of the docking path. On the contrary, when the conductive block 52 slides down and no longer contacts the terminal 54, the electromagnetic block 55 will be disconnected from the port 53, and the electromagnetic block 55 that disconnects the circuit loses suction force, and the acceleration sensor body 1 can be disassembled from the detected motor equipment;

[0031] The electromagnet energization limiting structure of the small ground-insulated acceleration sensor:

[0032] When it is necessary to control the electromagnetic block 55 to be energized to generate suction force, the operator first pulls out the limit rod 64 from the inner side of the through hole 63. In this way, the movable rod 62 loses its restriction and can be manually lifted upward under the drive of the pulling block 61. At this time, the lifted movable rod 62 drives the lower connecting block 65 to move upward. The connecting block 65 can drive the conductive block 52 to slide through the pushing frame 66 extending from the front end to be docked with the terminal 54. The electromagnet 55 can generate suction force under the supply of the circuit, which is convenient for adsorbing the base 2 at the lower end of the sensor body 1 on the surface of the iron metal. Similarly, at this time, the limit rod 64 is inserted back into the inner side of the through hole 63 again, and the positions of the movable rod 62 and the conductive block 52 can be fixed.

[0033] Embodiment 2:

[0034] Please refer to Figures 1-6 : In this embodiment, a small-sized ground-insulated acceleration sensor further includes a wire connection structure 7 including a docking head 71 and a connecting sleeve 72. The docking head 71 is fixedly installed at the top end of the sensor body 1. A plurality of trapezoidal rings 74 are fixedly installed on the outer wall of the docking head 71. The trapezoidal rings 74 are multi-layer trapezoidal rings made of metallic iron. The connecting sleeve 72 is movably installed outside the docking head 71. A plurality of trapezoidal grooves 73 are fixedly formed on the inner wall of the connecting sleeve 72. The inner side of the connecting sleeve 72 is a deformable structure made of mild steel. When the guide wire 4 is docked with the lower sensor body 1, the connecting sleeve 72 is aligned with the docking head 71 and pressed downward with force. The plurality of trapezoidal grooves 73 will be deformed by the force and inserted into the inner side of the trapezoidal rings 74. The multi-layer trapezoidal rings 74 and the trapezoidal grooves 73 are fixed by using frictional force. When it is necessary to disassemble, the connecting sleeve 72 can be pulled out by applying force in the reverse direction. The inner part of the plurality of trapezoidal grooves 73 is movably connected to the outer side of the trapezoidal rings 74. The top end of the connecting sleeve 72 is fixedly connected to the wire 4. The bottom end of the wire 4 is connected to the top end of the docking head 71 in a communicating manner. The lower end of the wire 4 is electrically connected to the sensor body 1.

[0035] Working principle:

[0036] The trapezoidal rings 74 are multi-layer trapezoidal rings made of metallic iron. The inner side of the connecting sleeve 72 is a deformable structure made of mild steel. When the guide wire 4 is docked with the lower sensor body 1, the connecting sleeve 72 is aligned with the docking head 71 and pressed downward with force. The plurality of trapezoidal grooves 73 will be deformed by the force and inserted into the inner side of the trapezoidal rings 74. The multi-layer trapezoidal rings 74 and the trapezoidal grooves 73 are fixed by using frictional force. When it is necessary to disassemble, the connecting sleeve 72 can be pulled out by applying force in the reverse direction.

[0037] Although the present utility model has been illustrated and described by referring to the preferred embodiments, those of ordinary skill in the art should understand that various changes in form and details can be made within the scope of the claims.

Claims

1. A small-sized ground-insulated acceleration sensor, comprising a sensor body (1), a base (2) and a protective layer (3), wherein the protective layer (3) is fixedly mounted on the lower end of the base (2), and the sensor body (1) is movably mounted above the base (2), characterized in that: An acceleration sensor connection structure (5) is provided on the inner side of the base (2), an acceleration sensor fixing anti-mistouch structure (6) is provided inside the base (2), and a wire connection structure (7) is provided on the top of the sensor body (1).

2. A small ground-insulated acceleration sensor according to claim 1, characterized in that: The acceleration sensor connection structure (5) comprises a terminal (54) and an electromagnetic block (55), wherein the electromagnetic block (55) is fixedly mounted on the inner bottom end of the base (2), a guide column (51) is fixedly mounted above the electromagnetic block (55), a conductive assembly (52) is slidably connected to the outer side of the guide column (51), the terminal (54) is fixedly mounted above the base (2), and a port (53) is threadedly connected to the outer side of the terminal (54).

3. A small-sized ground-insulated acceleration sensor according to claim 2, characterized in that: The port (53) is fixedly opened at the bottom end of the sensor body (1), and the top end of the conductive block (52) is movably connected to the lower end of the terminal (54).

4. The small ground-insulated acceleration sensor according to claim 1, characterized in that: The acceleration sensor fixed anti-mistouch structure (6) comprises a pulling block (61) and a movable rod (62), the two movable rods (62) are slidably connected to the inner sides of the base (2), the inner wall bottom ends of the two movable rods (62) are fixedly installed with a connecting block (65), the ends of the two connecting blocks (65) are fixedly connected with a push-out frame (66), the interior of the two movable rods (62) are fixedly provided with two through holes (63), the interior of the through holes (63) is movably connected with a limiting rod (64), the two limiting rods (64) are movably connected to the inner side of the base (2), and the top ends of the two movable rods (62) are fixedly installed with a pulling block (61).

5. The small-sized ground-insulated acceleration sensor according to claim 1, characterized in that: The wire connection structure (7) comprises a docking joint (71) and a connecting sleeve (72); the docking joint (71) is fixedly mounted on the top of the sensor body (1); a plurality of trapezoidal rings (74) are fixedly mounted on the outer wall of the docking joint (71); the connecting sleeve (72) is movably mounted on the outer side of the docking joint (71); a plurality of trapezoidal grooves (73) are fixedly opened on the inner wall of the connecting sleeve (72); the interior of the plurality of trapezoidal grooves (73) are movably connected to the outer side of the trapezoidal rings (74).

6. A small-sized ground-insulated acceleration sensor according to claim 5, characterized in that: The top end of the connecting sleeve (72) is fixedly connected to a wire (4), the bottom end of the wire (4) is connected to the top end of the docking head (71), and the lower end of the wire (4) is electrically connected to the sensor body (1).

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