Inertial sensor for determining motion state

Abstract

The invention discloses an inertial sensor for determining a motion state, and belongs to the field of inertial sensors. Comprising a protective shell, and a sensor body is arranged in the protective shell; concave clamping blocks are fixedly connected to the front surface and the rear surface of the inner side of the protective shell; a cover plate is arranged on the upper surface of the protective shell, a rotating rod is arranged on the upper surface of the cover plate, a rotary knob is fixedly connected to the top end of the rotating rod, the bottom end of the rotating rod penetrates through the inner side of the protective shell and is fixedly connected with a limiting stop lever, and the two ends of the limiting stop lever are clamped to the inner sides of the two concave clamping blocks respectively. After the cover plate is clamped into the protection shell, the limiting stop lever is clamped into the concave clamping block, clamping installation of the protection shell and the cover plate is completed, the clamping mode is simple, during disassembly, the rotating rod is pressed downwards, the limiting stop lever is disengaged from the inner side of the concave clamping block, then the rotating rod is rotated to drive the limiting stop lever to deviate from the concave clamping block, then the cover plate can be disassembled, and disassembly is convenient.

Description

Technical Field

[0001] The present invention relates to the field of inertial sensors, and in particular to an inertial sensor for determining a motion state. Background Art

[0002] Inertial sensors are sensors used to detect and measure acceleration, tilt, shock, vibration, rotation, and multi-degree-of-freedom motion. They are important components for solving navigation, orientation, and motion carrier control.

[0003] Inertial sensors include accelerometers and angular velocity sensors, as well as their single-axis, dual-axis, and tri-axis combinations, IMUs and AHRSs. MEMS accelerometers are sensors that measure the inertial force of the sensing mass and are usually composed of a standard mass block and a detection circuit. An IMU is mainly composed of three MEMS accelerometers, three gyroscopes, and a solution circuit.

[0004] Inertial sensors in the prior art are usually placed inside a protective housing to protect the surface. However, the existing housing and the sensor body are not easy to disassemble, which makes disassembly and replacement inconvenient. In addition, the heat dissipation effect of inertial sensors in the prior art is poor during use, and needs to be improved. To this end, we propose an inertial sensor for determining the motion state. Summary of the Invention

[0005] Purpose of the invention: The purpose of the present invention is to facilitate disassembly between the housing and the sensor body; another purpose of the present invention is to provide better heat dissipation effect.

[0006] Technical solution: An inertial sensor for determining a motion state includes a protective shell, wherein a sensor body is disposed inside the protective shell;

[0007] The inner front surface and the inner rear surface of the protective shell are both fixedly connected with concave clamping blocks;

[0008] A cover plate is provided on the upper surface of the protective shell, and a rotating rod is provided on the upper surface of the cover plate. The top end of the rotating rod is fixedly connected to a knob, and the bottom end of the rotating rod passes through the inner side of the protective shell and is fixedly connected to a limit stop rod. The two ends of the limit stop rod are respectively engaged with the inner sides of the two concave blocks;

[0009] The upper surface of the cover plate is located on the outer side of the rotating rod and is rotatably connected to a collar through a rotating shaft. A plurality of springs are fixedly connected between the upper surface of the collar and the knob.

[0010] The front surface of the protective shell is integrally formed with a docking port;

[0011] The outer side wall of the protective shell is provided with a plurality of through-type vertical slots, the inner sides of the vertical slots are slidably connected with condensation sheets, and the condensation sheets are in contact with the opposite sides of the sensor body.

[0012] Furthermore, the tops of the plurality of condensing sheets on the same side are fixedly connected to a top plate, and the bottoms of the plurality of condensing sheets on the same side are fixedly connected to a bottom plate.

[0013] Furthermore, a wedge-shaped pressure block is fixedly connected to the upper surface of the top plate, a connecting piece is fixedly connected to the bottom of the bottom plate, and a second spring is fixedly connected between the connecting piece and the protective shell.

[0014] Furthermore, a plurality of wedge-shaped extrusion blocks are integrally formed on the outer side wall of the cover plate, and the lower surface of the wedge-shaped extrusion block is in contact with the upper surface of the wedge-shaped pressure block.

[0015] Furthermore, an arc-shaped limit groove is provided on the upper surface of the cover plate on the outside of the retaining ring, and a telescopic connecting piece is slidably connected inside the arc-shaped limit groove. A spring three is fixedly connected between the telescopic connecting piece and the arc-shaped limit groove, and the top end of the telescopic connecting piece is fixedly connected to the lower surface of the knob.

[0016] Furthermore, a through-type ventilation groove 1 is opened on the left side of the upper surface of the cover plate.

[0017] Furthermore, a ventilation box is integrally formed on the right side of the upper surface of the cover plate, and the interior of the ventilation box is provided with a driving chamber, ventilation chamber 1 and ventilation chamber 2 in sequence from front to back, the ventilation chamber 1 is connected with the ventilation chamber 2, a through-type ventilation groove 2 is provided at the bottom of the ventilation chamber 1, the bottom of the ventilation groove 2 passes through the cover plate, and a through-type ventilation groove 3 is provided on the inner rear surface of the ventilation chamber 2.

[0018] Furthermore, the rear surface of the interior of the driving chamber is fixedly connected to a motor, and the rear end of the output shaft of the motor is located inside the ventilation chamber one and is fixedly connected to a storage tube, and the inner lower surfaces of the ventilation chamber one and the ventilation chamber two are fixedly connected to a mounting seat, and the inner side of the mounting seat is rotatably connected to a shaft tube via a rotating shaft, and the rear ends of the two shaft tubes are respectively fixedly connected to fan blade one and fan blade two, and the interior of the storage tube is slidably connected to a shaft rod, and the rear end of the shaft rod passes through the two shaft tubes, and the outer side walls of the shaft tube are located at the opposite ends of the two shaft tubes and are fixedly connected to abutment plates, and the interior of the ventilation chamber one is fixedly connected to an electric telescopic rod, and the outer side wall of the shaft rod is located inside the ventilation chamber two and is rotatably connected to a connecting plate via a rotating shaft, and the rear end of the output shaft of the electric telescopic rod passes through the interior of the ventilation chamber two and is fixedly connected to the rear surface of the connecting plate.

[0019] Furthermore, the upper surface of the cover plate located above the ventilation groove 1 and the rear surface of the ventilation box are fixedly connected with filter 1 and filter 2 respectively.

[0020] Beneficial effect: After the cover plate is engaged with the inside of the protective shell, the limit stopper is engaged with the inside of the concave block through the limit stopper, completing the engagement of the protective shell and the cover plate. The engagement method is simple. When removing, press the rotating rod downward to disengage the limit stopper from the inside of the concave block. Then, rotate the rotating rod to drive the limit stopper away from the concave block, and then the cover plate can be removed. The disassembly is convenient.

[0021] After the cover is placed on the protective shell, the wedge-shaped extrusion block squeezes the wedge-shaped pressure block, causing multiple condensation sheets to move toward the inside of the protective shell and press against the sensor body, ensuring that the sensor body is stably installed inside the protective shell. After the cover is separated from the protective shell, the condensation sheets extend from the inside of the protective shell under the push of the second spring, expanding the storage space inside the protective shell and making it easier to place the sensor body.

[0022] The directions of blades one and blade two are opposite. When in use, by controlling the extension or shortening of the electric telescopic rod, one of the two abutment plates is controlled to abut against one of the two shafts, thereby starting the motor, which can control blade one or blade two to rotate. By driving different blades in opposite directions, the ventilation box can be controlled to draw air or exhaust air, so that the device can take in air through ventilation slot one and then out through ventilation slot three, or out through ventilation slot one and then take in air through ventilation slot three. The direction of air inlet and outlet can be changed, so that the direction of gas flow inside the protective shell can be changed, and the heat dissipation can be made more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic structural diagram of the present invention after removing the cover plate;

[0025] Figure 3 It is a schematic structural diagram of the protective shell of the present invention;

[0026] Figure 4 1 is a bottom view structural diagram of the cover plate of the present invention;

[0027] Figure 5 Schematic diagram of the connection structure of the condenser sheet, top plate and bottom plate of the present invention;

[0028] Figure 6 1 is a schematic side view of the connection structure of the rotating rod and the limiting lever of the present invention;

[0029] Figure 7 is a schematic side structural diagram of a vertical cross section of the ventilation box of the present invention;

[0030] Figure 8 The present invention Figure 4 A is an enlarged structural diagram of FIG.

[0031] Figure: 1, protective shell; 2, sensor body; 3, filter screen 2; 4, concave block; 5, cover plate; 6, rotating rod; 7, knob; 8, limit stopper; 9, ring; 10, spring 1; 11, docking port; 12, vertical slot; 13, condenser plate; 14, top plate; 15, bottom plate; 16, wedge-shaped pressure block; 17, connecting plate; 18, spring 2; 19, wedge-shaped extrusion block; 20, arc-shaped limit slot; 21, extension Retractable connector; 22. Spring three; 23. Ventilation slot one; 24. Ventilation box; 25. Drive chamber; 26. Ventilation chamber one; 27. Ventilation chamber two; 28. Ventilation slot two; 29. ​​Ventilation slot three; 30. Motor; 31. Storage tube; 32. Mounting seat; 33. Shaft tube; 34. Fan blade one; 35. Fan blade two; 36. Shaft rod; 37. Abutment plate; 38. Electric telescopic rod; 39. Connecting plate; 40. Filter one. DETAILED DESCRIPTION

[0032] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Example

[0034] like Figures 1-8 As shown, an inertial sensor for determining a motion state is provided, comprising a protective shell 1, wherein a sensor body 2 is arranged inside the protective shell 1;

[0035] The sensor body 2 is placed inside the protective shell 1 to play a protective role;

[0036] The inner front surface and the inner rear surface of the protective shell 1 are both fixedly connected with concave clamping blocks 4;

[0037] The upper surface of the protective shell 1 is provided with a cover plate 5, and the upper surface of the cover plate 5 is provided with a rotating rod 6. The top end of the rotating rod 6 is fixedly connected to a knob 7. The bottom end of the rotating rod 6 passes through the inner side of the protective shell 1 and is fixedly connected to a limit stop rod 8. The two ends of the limit stop rod 8 are respectively engaged with the inner sides of the two concave blocks 4;

[0038] After the cover plate 5 is engaged with the inside of the protective shell 1, the limiting lever 8 is engaged with the inside of the concave block 4 to complete the engagement of the protective shell 1 and the cover plate 5. The engagement method is simple.

[0039] The upper surface of the cover plate 5 is located outside the rotating rod 6 and is rotatably connected to a collar 9 via a rotating shaft. A plurality of springs 10 are fixedly connected between the upper surface of the collar 9 and the knob 7.

[0040] When disassembling, press the rotating rod 6 downward to disengage the limit stopper 8 from the inner side of the concave block 4, and then rotate the rotating rod 6 to drive the limit stopper 8 to deviate from the concave block 4, and then the cover plate 5 can be removed, which is easy to disassemble;

[0041] The front surface of the protective shell 1 is integrally formed with a docking port 11;

[0042] Used to connect the external connection line to the connection on the sensor body 2;

[0043] The outer wall of the protective shell 1 is provided with a plurality of through-type vertical slots 12, the inner side of the vertical slots 12 is slidably connected with condensation sheets 13, and the condensation sheets 13 are in contact with the opposite side of the sensor body 2;

[0044] It has a cooling effect.

[0045] The tops of the multiple condensing sheets 13 on the same side are fixedly connected to a top plate 14, and the bottoms of the multiple condensing sheets 13 on the same side are fixedly connected to a bottom plate 15.

[0046] A wedge-shaped pressure block 16 is fixedly connected to the upper surface of the top plate 14, a connecting piece 17 is fixedly connected to the bottom of the bottom plate 15, and a spring 2 18 is fixedly connected between the connecting piece 17 and the protective shell 1;

[0047] The outer wall of the cover plate 5 is integrally formed with a plurality of wedge-shaped extrusion blocks 19, and the lower surface of the wedge-shaped extrusion block 19 is in contact with the upper surface of the wedge-shaped pressure block 16;

[0048] After the cover plate 5 is covered on the protective shell 1, the wedge-shaped extrusion block 19 will squeeze the wedge-shaped pressure block 16, so that the multiple condensing sheets 13 move toward the inside of the protective shell 1 and press against the sensor body 2, ensuring that the sensor body 2 is stably installed inside the protective shell 1. After the cover plate 5 is separated from the protective shell 1, the condensing sheets 13 are pushed out from the inside of the protective shell 1 by the spring 2 18, which expands the storage space inside the protective shell 1 and is convenient for placing the sensor body 2.

[0049] An arc-shaped limiting groove 20 is formed on the upper surface of the cover plate 5 outside the anvil 9. A telescopic connector 21 is slidably connected to the interior of the arc-shaped limiting groove 20. A spring 3 22 is fixedly connected between the telescopic connector 21 and the arc-shaped limiting groove 20. The top end of the telescopic connector 21 is fixedly connected to the lower surface of the knob 7.

[0050] It has a limiting effect on the rotation of the rotating rod 6, and facilitates the rotation of the rotating rod 6 to drive the limit stop rod 8 to move, and under the push of the spring three 22, it is convenient for the rotating rod 6 to rotate to the bottom of the concave block 4;

[0051] A through-type ventilation groove 23 is provided on the left side of the upper surface of the cover plate 5;

[0052] A ventilation box 24 is integrally formed on the right side of the upper surface of the cover plate 5. The interior of the ventilation box 24 is provided with a drive chamber 25, a ventilation chamber 1 26, and a ventilation chamber 2 27 from front to back. The ventilation chamber 1 26 is connected to the ventilation chamber 2 27. A through-type ventilation groove 28 is provided at the bottom of the ventilation chamber 1 26. The bottom of the ventilation groove 28 passes through the cover plate 5. A through-type ventilation groove 3 29 is provided on the rear surface of the interior of the ventilation chamber 2 27.

[0053] The rear surface of the driving chamber 25 is fixedly connected to the motor 30, and the rear end of the output shaft of the motor 30 is located in the ventilation chamber 1 26 and is fixedly connected to the storage tube 31. The lower surfaces of the interiors of the ventilation chamber 1 26 and the ventilation chamber 2 27 are fixedly connected to the mounting seat 32, and the inner side of the mounting seat 32 is rotatably connected to the shaft tube 33 through a rotating shaft. The rear ends of the two shaft tubes 33 are fixedly connected to the fan blade 1 34 and the fan blade 2 35 respectively. The interior of the storage tube 31 is slidably connected to the shaft rod 36, and the rear end of the shaft rod 36 passes through the two shaft tubes 33. The outer side walls of the shaft tube 33 are located at the opposite ends of the two shaft tubes 33 and are fixedly connected to the abutment plates 37. The interior of the ventilation chamber 1 26 is fixedly connected to the electric telescopic rod 38, and the outer side wall of the shaft rod 36 is located in the interior of the ventilation chamber 27 and is rotatably connected to the connecting plate 39. The rear end of the output shaft of the electric telescopic rod 38 passes through the interior of the ventilation chamber 2 27 and is fixedly connected to the rear surface of the connecting plate 39.

[0054] The upper surface of the cover plate 5 is located above the ventilation slot 1 23 and the rear surface of the ventilation box 24 is fixedly connected with the filter screen 1 40 and the filter screen 2 3 respectively;

[0055] The blades of blade 1 34 and blade 2 35 are in opposite directions. When in use, by controlling the electric telescopic rod 38 to extend or shorten, one of the two abutment plates 37 is controlled to abut against one of the two shafts 36, thereby starting the motor 30, and the blade 1 34 or blade 2 35 can be controlled to rotate. By having the blades of blade 1 34 and blade 2 35 in opposite directions, when driving different blades to rotate, the ventilation box 24 can be controlled to draw air or exhaust air, so that the device can take in air through the ventilation groove 1 23 and then exhaust air through the ventilation groove 3 29, or the ventilation groove 1 23 can exhaust air and then take in air through the ventilation groove 3 29. The direction of air inlet and outlet can be changed, so that the flow direction of gas inside the protective shell 1 is changed, and the heat dissipation is more uniform.

[0056] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An inertial sensor for determining a motion state, comprising a protective housing (1), characterized in that: A sensor body (2) is provided inside the protective shell (1); The inner front surface and the inner rear surface of the protective shell (1) are both fixedly connected with concave clamping blocks (4); The upper surface of the protective shell (1) is provided with a cover plate (5), and the upper surface of the cover plate (5) is provided with a rotating rod (6), the top end of the rotating rod (6) is fixedly connected to a knob (7), the bottom end of the rotating rod (6) passes through the inner side of the protective shell (1) and is fixedly connected to a limit stop rod (8), and the two ends of the limit stop rod (8) are respectively engaged with the inner sides of the two concave blocks (4); The upper surface of the cover plate (5) is located outside the rotating rod (6) and is rotatably connected to a retaining ring (9) via a rotating shaft. A plurality of springs (10) are fixedly connected between the upper surface of the retaining ring (9) and the knob (7). The front surface of the protective shell (1) is integrally formed with a docking port (11); The outer wall of the protective shell (1) is provided with a plurality of through-type vertical slots (12), the inner sides of the vertical slots (12) are slidably connected with condensation sheets (13), and the condensation sheets (13) are in contact with the opposite sides of the sensor body (2).

2. An inertial sensor for determining motion state according to claim 1, characterized in that: The tops of the plurality of condensing sheets (13) on the same side are fixedly connected to a top plate (14), and the bottoms of the plurality of condensing sheets (13) on the same side are fixedly connected to a bottom plate (15).

3. An inertial sensor for determining motion state according to claim 2, characterized in that: A wedge-shaped pressure block (16) is fixedly connected to the upper surface of the top plate (14), a connecting piece (17) is fixedly connected to the bottom of the bottom plate (15), and a second spring (18) is fixedly connected between the connecting piece (17) and the protective shell (1).

4. An inertial sensor for determining a motion state according to claim 3, characterized in that: The outer side wall of the cover plate (5) is integrally formed with a plurality of wedge-shaped extrusion blocks (19), and the lower surface of the wedge-shaped extrusion block (19) is in contact with the upper surface of the wedge-shaped pressure block (16).

5. The inertial sensor for determining motion state according to claim 1, characterized in that: The upper surface of the cover plate (5) is provided with an arc-shaped limiting groove (20) on the outer side of the retaining ring (9), and a telescopic connecting member (21) is slidably connected inside the arc-shaped limiting groove (20), and a spring three (22) is fixedly connected between the telescopic connecting member (21) and the arc-shaped limiting groove (20), and the top end of the telescopic connecting member (21) is fixedly connected to the lower surface of the knob (7).

6. The inertial sensor for determining motion state according to claim 1, characterized in that: A through-type ventilation groove (23) is provided on the left side of the upper surface of the cover plate (5).

7. An inertial sensor for determining motion state according to claim 6, characterized in that: A ventilation box (24) is integrally formed on the right side of the upper surface of the cover plate (5), and a driving chamber (25), a ventilation chamber 1 (26) and a ventilation chamber 2 (27) are sequentially arranged inside the ventilation box (24) from front to back. The ventilation chamber 1 (26) is connected to the ventilation chamber 2 (27), and a through-type ventilation groove 2 (28) is provided at the bottom of the ventilation chamber 1 (26). The bottom of the ventilation groove 2 (28) passes through the cover plate (5), and a through-type ventilation groove 3 (29) is provided on the inner rear surface of the ventilation chamber 2 (27).

8. An inertial sensor for determining motion state according to claim 7, characterized in that: The rear surface of the interior of the driving chamber (25) is fixedly connected to a motor (30), the rear end of the output shaft of the motor (30) is located inside the ventilation chamber (26) and is fixedly connected to a receiving tube (31), the lower surfaces of the interiors of the ventilation chamber (26) and the ventilation chamber (27) are both fixedly connected to a mounting seat (32), the inner side of the mounting seat (32) is rotatably connected to a shaft tube (33) via a rotating shaft, the rear ends of the two shaft tubes (33) are respectively fixedly connected to a fan blade (34) and a fan blade (35), the interior of the receiving tube (31) is slidably connected to a shaft rod (33). 6), the rear end of the shaft rod (36) passes through the two shaft tubes (33), the outer side walls of the shaft tubes (33) are located at the opposite ends of the two shaft tubes (33) and are fixedly connected with abutment plates (37), the interior of the ventilation chamber (26) is fixedly connected with an electric telescopic rod (38), the outer side wall of the shaft rod (36) is located inside the ventilation chamber (27) and is rotatably connected with a connecting plate (39) through a rotating shaft, and the rear end of the output shaft of the electric telescopic rod (38) passes through the interior of the ventilation chamber (27) and is fixedly connected to the rear surface of the connecting plate (39).

9. An inertial sensor for determining motion state according to claim 8, characterized in that: The upper surface of the cover plate (5) is located above the ventilation groove (23) and the rear surface of the ventilation box (24) is fixedly connected with a filter screen (40) and a filter screen (3) respectively.

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