Inertial parameter capturing device

Abstract

The utility model belongs to the technical field of motion capture, and discloses an inertial parameter capture device which comprises a shell, an inertial capture assembly and a pressing connection assembly, grooves are symmetrically formed in the surface of the shell, rod grooves are symmetrically formed in the inner walls of the two sets of grooves respectively and are communicated, mounting grooves are formed in the inner walls of one set of grooves, and the pressing connection assembly is arranged in the mounting grooves. The inertia capturing assembly comprises a sliding frame and an inertia capturing mechanism, the sliding frame is slidably connected to the inner wall of the mounting groove, and the inertia capturing mechanism is arranged on the surface of the sliding frame; the pressing connecting assembly comprises two connecting mechanisms and two pressing plates, the two connecting mechanisms are arranged in the two rod grooves correspondingly, and the two pressing plates are arranged in the two grooves correspondingly. According to the device, an innovative bidirectional push-in fixing mechanism is adopted, the installation process of the circuit board is ingeniously simplified through the design, the potential damage risk caused by using screws is effectively avoided, and therefore the working efficiency and the overall reliability of the device are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of motion capture, in particular to an inertia parameter capture device. Background Art

[0002] The motion inertial capture device is a device based on inertial sensor technology, which is used to measure and capture the motion parameters of objects or human bodies in real time.

[0003] The patent application document with publication number CN209727120U discloses an inertial measurement device for motion capture, which consists of a circuit board and an inertial measurement unit arranged on the circuit board and electrically connected to the circuit board, a Bluetooth communication module, a rechargeable battery, a charging chip and a power switch. Although the device can realize inertial parameter capture, in actual use, the circuit board needs to be installed inside the shell by fasteners such as screws. Although this installation method is stable, tools are required during the installation and disassembly process, which can easily damage sensitive components on the circuit board. The overall operation steps are relatively cumbersome, resulting in low work efficiency. Utility Model Content

[0004] In order to solve the problems raised in the above-mentioned background technology, the utility model provides an inertial parameter capture device, which has the characteristics of simple and convenient installation. The user only needs to gently push the circuit board into the shell, and press the connecting components to achieve a stable installation without using any screws or other fasteners. This installation method is not only simple and quick to operate, but also effectively avoids the potential damage risk caused by the use of screws, thereby improving the work efficiency and the overall reliability of the device.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an inertial parameter capture device, comprising a shell, an inertial capture component and a press-connection component, wherein the shell surface is symmetrically provided with grooves, two groups of inner walls of the grooves are symmetrically provided with rod grooves and are connected, and one group of inner walls of the grooves is provided with an installation groove and is located inside the rod groove; the inertial capture component comprises a slide frame and an inertial capture mechanism, wherein the slide frame is slidably connected to the inner wall of the installation groove, and the inertial capture mechanism is arranged on the surface of the slide frame; the press-connection component The component comprises two groups of connecting mechanisms and two groups of pressing plates, wherein the two groups of connecting mechanisms are respectively arranged inside the two groups of rod grooves, the two groups of pressing plates are respectively arranged inside the two groups of grooves, and a first spring is connected between the inner walls of the grooves; the surfaces of the two groups of pressing plates are respectively provided with extrusion rods and fixed cylinders at positions corresponding to the positions of the connecting mechanisms, one end of the connecting mechanism is connected to one end of the extrusion rod, and the other end of the connecting mechanism is connected to one end of the fixed cylinder; one end of the sliding frame is connected to the surface of the pressing plate corresponding to the position of the fixed cylinder.

[0006] Preferably, the inertial capture mechanism includes a circuit board, an inertial measurement unit and a battery module, wherein the circuit board is arranged on the surface of the sliding frame; the inertial measurement unit and the battery module are respectively arranged on the surface of the circuit board and connected to the circuit board; the inertial measurement unit includes an acceleration sensor and an angular velocity sensor, and the inertial measurement unit adopts an nRF24L01 chip, and the acceleration sensor and the angular velocity sensor are data-connected to the nRF24L01 chip through an SPI interface, and the nRF24L01 chip is communicatively connected to an intelligent terminal device; the battery module includes a rechargeable battery, a charging interface and a power switch, and the charging interface and the power switch are respectively arranged on the surface of the pressing plate corresponding to the position of the fixed cylinder.

[0007] Preferably, the connecting mechanism includes a cylinder, a column seat, a second spring and a T-shaped connecting rod, wherein the cylinder is threadedly connected to the inner wall of the rod groove; the column seat is slidably connected to the inner wall of the cylinder, and a convex rod and a limiting groove are respectively provided at the positions of the column seat surface corresponding to the positions of the inner wall of the cylinder, one end of the convex rod is located inside the limiting groove and is slidably connected to the inner wall of the limiting groove; one end of the column seat passes through the outside of the cylinder and is connected to the surface of the cylinder with the second spring, and the other end of the column seat passes through the outside of the cylinder and is fixedly connected to the T-shaped connecting rod; one end of the column seat close to the second spring is in contact with one end of the extrusion rod, and one end of the T-shaped connecting rod is connected to one end of the fixed cylinder.

[0008] Preferably, a ring platform is provided on one end surface of the column seat in contact with one end of the extrusion rod, and a straight groove is provided on one end surface of the fixed cylinder connected to the T-shaped connecting rod. One end of the T-shaped connecting rod is located inside the fixed cylinder and is fixed to the straight groove.

[0009] Preferably, positioning rods and positioning grooves are respectively provided at positions corresponding to the surfaces of the two groups of pressing plates and the inner walls of the two groups of grooves, and one end of the positioning rod is slidably connected to the inner wall of the positioning groove.

[0010] Preferably, the first spring is sleeved on the outside of the positioning rod, one end of the first spring is connected to the surface of the pressing plate, and the other end of the first spring is connected to the inner wall of the groove.

[0011] Preferably, the depth of the groove is greater than the thickness of the pressing plate, and the outer surface of the pressing plate and the outer surface of the shell are in the same plane.

[0012] Preferably, a sealing gasket is provided at the connection between the surface of the pressing plate and the inner wall of the groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model adopts an innovative two-way push-in fixing mechanism. This design cleverly simplifies the installation process of the circuit board and ensures a close fit between the circuit board and the housing, effectively reducing the performance degradation problem caused by looseness or vibration. The user only needs to gently push the circuit board into the housing and press the connection components to achieve a stable installation without using any screws or other fasteners. This installation method is not only simple and quick to operate, but also effectively avoids the potential damage risk caused by the use of screws, thereby improving work efficiency and the overall reliability of the device.

[0015] 2. The utility model adopts an innovative two-way push-in fixing mechanism. Through the two-way push-in method, the circuit board can be firmly locked inside the shell, effectively preventing the circuit board from popping out due to misoperation, thereby greatly reducing the risk of damage caused by misoperation. This design not only improves the safety of the equipment, but also ensures long-term stability and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the housing structure in the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the inertial capture mechanism in the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the extrusion rod in the utility model;

[0020] Figure 5 It is a schematic diagram of the connecting mechanism structure in the utility model;

[0021] Figure 6 It is a schematic diagram of the straight card slot structure in the utility model.

[0022] In the figure:

[0023] 1. Shell; 2. Inertial capture assembly; 3. Press-to-connect assembly;

[0024] 11. Groove; 12. Rod groove; 13. Mounting groove;

[0025] 21. Sliding frame; 22. Inertial capture mechanism;

[0026] 31. Connecting mechanism; 32. Pressing plate; 33. First spring; 34. Extrusion rod; 35. Fixing cylinder;

[0027] 221. circuit board; 222. inertial measurement unit; 223. battery module;

[0028] 311, cylinder; 312, column seat; 313, second spring; 314, T-shaped connecting rod; 315, protruding rod; 316, limiting groove; 317, ring platform; 318, straight slot;

[0029] 100. Positioning rod; 200. Positioning slot. DETAILED DESCRIPTION

[0030] 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.

[0031] like Figures 1 to 6 As shown, the utility model provides an inertial parameter capturing device, which may include a housing 1 , an inertial capturing component 2 and a pressing connection component 3 .

[0032] The housing 1 has grooves 11 symmetrically formed on its surface, two groups of grooves 11 have rod grooves 12 symmetrically formed on their inner walls and connected to each other, and one group of grooves 11 has an installation groove 13 formed on its inner wall and located inside the rod groove 12 .

[0033] It should be noted that the mounting groove 13 described in this embodiment is rectangular and does not penetrate the side wall of the housing 1 .

[0034] The inertial capture assembly 2 may include a slide frame 21 and an inertial capture mechanism 22 .

[0035] The sliding frame 21 is slidably connected to the inner wall of the mounting groove 13 , and the inertia capture mechanism 22 is arranged on the surface of the sliding frame 21 .

[0036] It should be noted that the slide frame 21 described in this embodiment is adapted to the internal dimensions of the mounting slot 13 , a plate slot is provided on the surface of the slide frame 21 , the inertial capture mechanism 22 is installed in the plate slot, and its top does not contact the inner wall of the mounting slot 13 .

[0037] It should also be noted that, in order to facilitate the cooling of the inertial capture mechanism 22, a metal heat conductive sheet (not shown in the figure) is arranged on the inner wall of the plate slot, and an H-shaped heat sink block (not shown in the figure) is arranged on the side of the shell 1. One end of the metal heat conductive sheet is connected to the bottom of the inertial capture mechanism 22, and the other end of the metal heat conductive sheet passes through the outside of the slide frame 21. One end of the H-shaped heat sink block (not shown in the figure) is arranged on the side of the shell 1, and the other end is arranged on the inner wall of the mounting groove 13, and is in the same plane as the inner wall of the mounting groove 13. The end of the metal heat conductive sheet that passes through the outside of the slide frame 21 is in contact with the end of the H-shaped heat sink block located inside the mounting groove 13, and heat dissipation is achieved by the cooperation between the metal heat conductive sheet and the H-shaped heat sink block.

[0038] The pressing connection assembly 3 may include two sets of connection mechanisms 31 and two sets of pressing plates 32 .

[0039] Among them, two groups of connecting mechanisms 31 are respectively arranged inside the two groups of rod grooves 12, two groups of pressing plates 32 are respectively arranged inside the two groups of grooves 11, and a first spring 33 is connected between the inner wall of the groove 11, and the surfaces of the two groups of pressing plates 32 are respectively provided with extrusion rods 34 and fixed cylinders 35 corresponding to the positions of the connecting mechanisms 31. One end of the connecting mechanism 31 is connected to one end of the extrusion rod 34, and the other end of the connecting mechanism 31 is connected to one end of the fixed cylinder 35. One end of the sliding frame 21 is connected to the surface of the pressing plate 32 corresponding to the position of the fixed cylinder 35.

[0040] It should be noted that the pressing plate 32 described in this embodiment is adapted to the internal dimensions of the groove 11 .

[0041] It should also be noted that the outer diameter of one end of the connecting mechanism 31 is equal to the outer diameter of the extrusion rod 34 , and the outer diameter of the other end of the connecting mechanism 31 is smaller than the outer diameter of the fixing tube 35 .

[0042] Specifically, the slide frame 21 is inserted into the installation groove 13, and then the pressing plate 32 corresponding to the position of the extrusion rod 34 is pressed first. The pressing plate 32 is forced to compress the first spring 33 and drive the extrusion rod 34 into the rod groove 12 until the connection mechanism 31 is triggered to operate. The operation of the connection mechanism 31 drives one end of the connection mechanism 31 to change from a horizontal state to a vertical state, which is convenient for inserting into the fixed cylinder 35. Then, the pressing plate 32 corresponding to the position of the fixed cylinder 35 is pressed again. The pressing plate 32 is forced to compress the first spring 33 and drive the fixed cylinder 35 into the rod groove 12 and sleeved on the outer side of one end of the connection mechanism 31 in the vertical state. Then, the pressing plate 32 corresponding to the position of the extrusion rod 34 is released. The first spring 33 is used to move the pressing plate 32 to the left and right sides of the fixing cylinder 35, and the pressing plate 32 is used to move the pressing plate 32 to the right and left sides of the fixing cylinder 35. The first spring 33 is used to move the pressing plate 32 to the right and left ...

[0043] In one embodiment of the present invention, Figure 3 As shown, the inertial capture mechanism 22 may include a circuit board 221 , an inertial measurement unit 222 , and a battery module 223 .

[0044] The circuit board 221 is disposed on the surface of the slide frame 21 , and the inertial measurement unit 222 and the battery module 223 are respectively disposed on the surface of the circuit board 221 and connected to the circuit board 221 .

[0045] The inertial measurement unit 222 may include an acceleration sensor and an angular velocity sensor. The inertial measurement unit 222 uses the nRF24L01 chip. The acceleration sensor and the angular velocity sensor are data-connected to the nRF24L01 chip via an SPI interface. The nRF24L01 chip is communication-connected to the smart terminal device. The battery module 223 includes a rechargeable battery, a charging interface, and a power switch. The charging interface and the power switch are respectively arranged on the surface of the pressing plate 32 corresponding to the position of the fixed cylinder 35.

[0046] It should be noted that the nRF24L01 chip described in this embodiment is a prior art. nRF24L01 is a wireless communication chip with multiple working modes and channel selections, and can be used to build a wireless communication system. The nRF24L01 chip can be connected to sensors such as acceleration sensors and angular velocity sensors to measure the motion state and direction of an object. These sensors convert the detected parameters into electrical signals, which are then processed through amplifiers and filters inside the chip. The processed data can be sent to the receiving end via wireless communication, usually using high-speed data transmission protocols such as SPI or I2C.

[0047] It should also be noted that the acceleration sensor and the angular velocity sensor are both existing technologies, so they will not be described in detail here.

[0048] Specifically, the battery module 223 is used to power the inertial measurement unit 222, which is used to measure parameters such as acceleration and angular velocity of an object, and transmit these parameters to a receiving end in real time using the high-speed data transmission capability of the chip.

[0049] In one embodiment of the present invention, Figure 5 As shown, the connection mechanism 31 may include a cylinder 311 , a column seat 312 , a second spring 313 and a T-shaped connection rod 314 .

[0050] Among them, the cylinder 311 is threadedly connected to the inner wall of the rod groove 12; the column seat 312 is slidably connected to the inner wall of the cylinder 311, and a convex rod 315 and a limiting groove 316 are respectively opened at the corresponding positions of the surface of the column seat 312 and the inner wall of the cylinder 311. One end of the convex rod 315 is located inside the limiting groove 316 and is slidably connected to the inner wall of the limiting groove 316. One end of the column seat 312 passes through the outside of the cylinder 311 and is connected to the surface of the cylinder 311 with a second spring 313. The other end of the column seat 312 passes through the outside of the cylinder 311 and is fixedly connected with a T-shaped connecting rod 314. One end of the column seat 312 close to the second spring 313 is in contact with one end of the extrusion rod 34, and one end of the T-shaped connecting rod 314 is connected to one end of the fixed cylinder 35.

[0051] It should be noted that the T-shaped connecting rod 314 described in this embodiment can rotate within an angle range of 0°-90°.

[0052] When the second spring 313 is pressed against the locking cam 314, the locking cam 315 is engaged with the locking cam 316, thereby the locking cam 316 is in a state of being pushed against the locking cam 314.

[0053] In one embodiment of the present invention, Figure 5-Figure 6 As shown, a ring platform 317 is provided on one end surface of the column seat 312 which contacts one end of the extrusion rod 34, and a straight groove 318 is provided on one end surface of the fixing cylinder 35 which is connected to the T-shaped connecting rod 314. One end of the T-shaped connecting rod 314 is located inside the fixing cylinder 35 and is fixed by being clamped in the straight groove 318.

[0054] It should be noted that the ring platform 317 described in this embodiment is designed to facilitate abutment with one end of the extrusion rod 34, and also to facilitate the second spring 313 to be fixed to the surface of one end of the column seat 312. The straight slot 318 is designed to facilitate the insertion of one end of the T-shaped connecting rod 314 into the interior of the fixed cylinder 35, and after the angle of the T-shaped connecting rod 314 is adjusted, the T-shaped connecting rod 314 can also be limited, thereby facilitating the connection and fixation of the column seat 312 and the fixed cylinder 35.

[0055] In one embodiment of the present invention, Figure 2-Figure 4 As shown, positioning rods 100 and positioning grooves 200 are respectively provided at positions corresponding to the surfaces of the two groups of pressing plates 32 and the inner walls of the two groups of grooves 11 , and one end of the positioning rod 100 is slidably connected to the inner wall of the positioning groove 200 .

[0056] It should be noted that the design of the positioning rod 100 and the positioning groove 200 described in this embodiment effectively guides and limits the travel of the pressing plate 32 and improves its operating stability.

[0057] In one embodiment of the present invention, Figure 2-Figure 4 As shown, the first spring 33 is sleeved on the outside of the positioning rod 100 , one end of the first spring 33 is connected to the surface of the pressing plate 32 , and the other end of the first spring 33 is connected to the inner wall of the groove 11 .

[0058] It should be noted that the first spring 33 described in this embodiment is used to drive the pressing plate 32 to return to its original position so that its outer surface is in the same plane as the outer surface of the housing 1 .

[0059] In one embodiment of the present invention, Figure 1 As shown, the depth of the groove 11 is greater than the thickness of the pressing plate 32 , and the outer surface of the pressing plate 32 is in the same plane as the outer surface of the shell 1 .

[0060] It should be noted that the depth of the groove 11 described in this embodiment is greater than the thickness of the pressing plate 32. This design facilitates the pressing plate 32 to slide on the inner wall of the groove 11, thereby facilitating the pressing operation. Its outer surface is in the same plane as the outer surface of the shell 1, making the device look more beautiful.

[0061] In one embodiment of the present invention, Figure 1 As shown, a sealing gasket (not shown in the figure) is provided at the connection between the surface of the pressing plate 32 and the inner wall of the groove 11.

[0062] It should be noted that the sealing gasket design described in this embodiment effectively blocks water vapor and dust from entering the interior of the mounting groove 13, thereby protecting the inertial capture mechanism 22 from interference from external environmental factors. This improvement not only enhances the durability of the equipment, but also ensures the stability and accuracy of the inertial capture mechanism 22, thereby significantly improving the use effect of the entire device.

[0063] Principle and process of this utility model:

[0064] The first spring 33 is compressed and the T-shaped connecting rod 314 in the vertical state can enter the fixed tube 35 through the slot 318.

[0065] When the fixing tube 35 is sleeved on the outside of one end of the T-shaped connecting rod 314, the pressing plate 32 corresponding to the position of the extrusion rod 34 is then released, and the pressing plate 32 is reset and synchronously drives the extrusion rod 34 to reset. When the extrusion rod 34 no longer squeezes one end of the column seat 312, the column seat 312 is reset under the elastic force of the second spring 313, and the column seat 312 is reset and synchronously drives the protruding rod 315 and the T-shaped connecting rod 314 to reset. After the T-shaped connecting rod 314 is reset, it changes from a vertical state to a horizontal state inside the fixing tube 35 and is engaged with the straight slot 318. Then, the pressing plate 32 corresponding to the position of the fixing tube 35 is released, and the inertia capture mechanism 22 can be quickly installed.

[0066] During installation, first push the pressing plate 32 corresponding to the position of the extrusion rod 34, then push the pressing plate 32 corresponding to the position of the fixing tube 35, then release the pressing plate 32 corresponding to the position of the extrusion rod 34, and finally release the pressing plate 32 corresponding to the position of the fixing tube 35.

[0067] When disassembling, first push the pressing plate 32 corresponding to the position of the fixed cylinder 35, then push the pressing plate 32 corresponding to the position of the extrusion rod 34, then release the pressing plate 32 corresponding to the position of the fixed cylinder 35, and finally release the pressing plate 32 corresponding to the position of the extrusion rod 34.

[0068] Among them, the two groups of first springs 33 apply a force in the opposite direction to the two groups of pressing plates 32 after the two groups of pressing plates 32 are reset, so that the connection between the trigger connecting mechanism 31 and the pressing plates 32 corresponding to the position of the fixing tube 35 is more stable, ensuring that the circuit board 221 can be firmly locked inside the shell 1, effectively preventing the circuit board 221 from popping out due to misoperation, thereby greatly reducing the risk of damage caused by misoperation.

[0069] 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.

[0070] 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 inertial parameter capture device, characterized in that: It comprises a housing (1), an inertial capture assembly (2) and a press connection assembly (3), wherein: The housing (1) is symmetrically provided with grooves (11), and the inner walls of two groups of the grooves (11) are symmetrically provided with rod grooves (12) respectively and are connected to each other, and the inner wall of one group of the grooves (11) is provided with a mounting groove (13) and is located inside the rod groove (12); The inertia capture assembly (2) comprises a slide frame (21) and an inertia capture mechanism (22), wherein: The sliding frame (21) is slidably connected to the inner wall of the mounting groove (13), and the inertial capture mechanism (22) is arranged on the surface of the sliding frame (21); The pressing connection assembly (3) comprises two groups of connection mechanisms (31) and two groups of pressing plates (32), wherein: The two groups of connecting mechanisms (31) are respectively arranged inside the two groups of rod grooves (12); the two groups of pressing plates (32) are respectively arranged inside the two groups of grooves (11), and a first spring (33) is connected between the inner wall of the groove (11); An extrusion rod (34) and a fixing cylinder (35) are respectively arranged at positions corresponding to the positions of the connection mechanism (31) on the surfaces of the two groups of pressing plates (32); one end of the connection mechanism (31) is connected to one end of the extrusion rod (34), and the other end of the connection mechanism (31) is connected to one end of the fixing cylinder (35); One end of the sliding frame (21) is connected to the surface of the pressing plate (32) corresponding to the position of the fixing cylinder (35).

2. The inertial parameter capturing device according to claim 1, characterized in that: The inertial capture mechanism (22) comprises a circuit board (221), an inertial measurement unit (222) and a battery module (223), wherein: The circuit board (221) is arranged on the surface of the slide frame (21); The inertial measurement unit (222) and the battery module (223) are respectively arranged on the surface of the circuit board (221) and connected to the circuit board (221); The inertial measurement unit (222) comprises an acceleration sensor and an angular velocity sensor, the inertial measurement unit (222) adopts an nRF24L01 chip, the acceleration sensor and the angular velocity sensor are data-connected to the nRF24L01 chip via an SPI interface, and the nRF24L01 chip is communicatively connected to the intelligent terminal device; The battery module (223) comprises a rechargeable battery, a charging interface and a power switch, and the charging interface and the power switch are respectively arranged on the surface of the pressing plate (32) corresponding to the position of the fixing cylinder (35).

3. The inertial parameter capturing device according to claim 1, characterized in that: The connecting mechanism (31) comprises a cylinder (311), a column seat (312), a second spring (313) and a T-shaped connecting rod (314), wherein: The cylinder (311) is threadedly connected to the inner wall of the rod groove (12); The column seat (312) is slidably connected to the inner wall of the cylinder (311). A protruding rod (315) and a limiting groove (316) are respectively provided at positions corresponding to the inner wall of the cylinder (311) on the surface of the column seat (312); one end of the protruding rod (315) is located inside the limiting groove (316) and is slidably connected to the inner wall of the limiting groove (316); One end of the column seat (312) passes through the outside of the cylinder (311) and is connected to the surface of the cylinder (311) with the second spring (313); the other end of the column seat (312) passes through the outside of the cylinder (311) and is fixedly connected to the T-shaped connecting rod (314); One end of the column seat (312) close to the second spring (313) contacts one end of the extrusion rod (34), and one end of the T-shaped connecting rod (314) is connected to one end of the fixing tube (35).

4. The inertial parameter capturing device according to claim 3, characterized in that: A ring platform (317) is provided on one end surface of the column seat (312) in contact with one end of the extrusion rod (34); a straight groove (318) is provided on one end surface of the fixing cylinder (35) connected to the T-shaped connecting rod (314); one end of the T-shaped connecting rod (314) is located inside the fixing cylinder (35) and is fixedly connected to the straight groove (318).

5. The inertial parameter capturing device according to claim 1, characterized in that: Positioning rods (100) and positioning grooves (200) are respectively provided at positions corresponding to the surfaces of the two groups of pressing plates (32) and the inner walls of the two groups of grooves (11), and one end of the positioning rod (100) is slidably connected to the inner wall of the positioning groove (200).

6. The inertial parameter capturing device according to claim 5, characterized in that: The first spring (33) is sleeved on the outside of the positioning rod (100), one end of the first spring (33) is connected to the surface of the pressing plate (32), and the other end of the first spring (33) is connected to the inner wall of the groove (11).

7. The inertial parameter capturing device according to claim 1, characterized in that: The depth of the groove (11) is greater than the thickness of the pressing plate (32), and the outer surface of the pressing plate (32) and the outer surface of the shell (1) are in the same plane.

8. The inertial parameter capturing device according to claim 1, characterized in that: A sealing gasket is provided at the connection between the surface of the pressing plate (32) and the inner wall of the groove (11).

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