Anti-impact quartz flexible accelerometer

Abstract

The utility model discloses an impact-resistant quartz flexible accelerometer, and particularly relates to the field of quartz flexible accelerometers, the impact-resistant quartz flexible accelerometer comprises a quartz flexible accelerometer main body, a support plate is arranged in a box body in a sliding manner, and a shock absorber is arranged between the bottom surface of the support plate and the inner bottom surface of the box body; and a plurality of layers of rubber pads and protective parts are fixedly arranged between the top surface of the supporting plate and the inner bottom surface of the box body. The multiple layers of rubber pads, the sleeves and the sleeve rods are installed between the top face of the supporting plate and the inner wall of the box body, the isolation effect can be achieved, the situation that the movement of the quartz flexible accelerometer body is affected when the multiple layers of rubber pads contract is prevented, the surface of the quartz flexible accelerometer body is sleeved with the fixing sleeve, and the limiting sleeve is installed on the top face of the box body. The fixing sleeve is in sliding connection with the limiting sleeve, so that the movement of the quartz flexible accelerometer main body can be limited to a certain extent, the movement amplitude of the quartz flexible accelerometer main body is prevented from being too large, and the quartz flexible accelerometer main body can recover to the original state quickly.

Description

TECHNICAL FIELD

[0001] The utility model relates to quartz flexible accelerometer technical field, concretely is a quartz flexible accelerometer that can resist impact. BACKGROUND

[0002] Quartz flexible accelerometer is a kind of accelerometer using quartz flexible support technology, belongs to single-axis gravity accelerometer, and its structure is simple, small in size, high in precision and sensitivity, high in reliability, widely used in modern inertial system, and the working principle of quartz flexible accelerometer is based on force balance principle, when external acceleration acts on inertial mass, it will cause the slight displacement of quartz flexible pendulum piece, and this displacement leads to the change of differential capacitance, servo amplifier detects this change and outputs corresponding current, and through feedback torque, inertial mass returns to equilibrium position, and by measuring this current signal, the input acceleration can be calculated.

[0003] Quartz flexible accelerometer is difficult to buffer when being shocked, and damage of quartz flexible accelerometer caused by shock will affect use, the existing authorized patent a quartz flexible accelerometer that can resist impact, patent No.

[0004] The above-mentioned utility model buffers through buffer spring and air spring when quartz flexible accelerometer main body is shocked, although it can play the role of buffering, but there is no buffering structure between the top surface of moving plate and the box during buffering, which can easily lead to excessive buffering amplitude, and more time is needed to restore the original state of moving plate.

[0005] Therefore, we improve it and propose a quartz flexible accelerometer that can resist impact. UTILITY MODEL CONTENTS

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] The utility model relates to an impact resistant quartz flexible accelerometer, including quartz flexible accelerometer main part, quartz flexible accelerometer main part sets up in the box, the box is slidably arranged with the support plate, and is installed with the shock absorber between the bottom surface of support plate and the inner bottom surface of box, the top surface of support plate and the inner bottom surface of box are fixedly provided with multilayer rubber pad and protection piece between, and the protection piece sets up at one side close to quartz flexible accelerometer main part, the protection piece is composed of sleeve and sleeve rod, the top surface of box fixed mounting limit sleeve, and the surface fixed sleeve of quartz flexible accelerometer main part is equipped with fixed sleeve, the fixed sleeve is connected with the limit sleeve slidingly through the clamping block.

[0008] As a preferred technical scheme of the utility model, a sliding groove is formed on the inner wall of the box, a sliding block is slidably arranged in the sliding groove, and mounting frames are fixedly installed on the inner walls on both sides of the sliding groove.

[0009] As a preferred technical scheme of the utility model, mounting grooves are formed on the side of the sliding block facing the mounting frames, and springs are connected between the mounting grooves and the mounting frames.

[0010] As a preferred technical scheme of the utility model, the multilayer rubber pads and the protection pieces are circumferentially distributed along the quartz flexible accelerometer, and a sliding groove is formed on the inner wall of the sleeve.

[0011] As a preferred technical scheme of the utility model, a square block is fixedly arranged on the surface of the sleeve rod, and the square block is slidably arranged in the sliding groove.

[0012] As a preferred technical scheme of the utility model, a limiting groove is symmetrically formed on the limit sleeve, the clamping block is fixedly arranged on the fixed sleeve, and the clamping block is slidably arranged in the limiting groove.

[0013] As a preferred technical scheme of the utility model, a through groove is formed in the middle of the top surface of the box, the quartz flexible accelerometer is slidably arranged in the through groove, the fixed sleeve is arranged on the top of the box, and the outer diameter of the fixed sleeve is greater than the diameter of the through groove.

[0014] The utility model has the advantages of:

[0015] In the utility model, the multilayer rubber pads, the sleeve, and the sleeve rod are arranged between the top surface of the support plate and the inner wall of the box, and the sleeve and the sleeve rod are arranged on the side close to the quartz flexible accelerometer main part, thereby playing an isolation role, preventing the movement of the quartz flexible accelerometer main part from being affected when the multilayer rubber pads shrink, and preventing the movement amplitude from being too large. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of an impact-resistant quartz flexible accelerometer according to this utility model. Figure One ;

[0018] Figure 2 This is a schematic diagram of the structure of an impact-resistant quartz flexible accelerometer according to this utility model. Figure Two ;

[0019] Figure 3 This is a schematic diagram of the structure of an impact-resistant quartz flexible accelerometer according to this utility model. Figure Three .

[0020] In the diagram: 1. Housing; 2. Quartz flexible accelerometer body; 3. Limiting sleeve; 4. Fixing sleeve; 5. Clamping block; 6. Support plate; 7. Slide groove; 8. Slider; 9. Spring; 10. Mounting frame; 11. Shock absorber; 12. Multi-layer rubber pad; 13. Sleeve; 14. Sleeve rod; 15. Square block. Detailed Implementation

[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0022] Example: Figures 1 to 3 As shown, this utility model discloses an impact-resistant quartz flexible accelerometer, including a quartz flexible accelerometer body 2, which is disposed inside a housing 1. A support plate 6 is slidably disposed inside the housing 1, and a shock absorber 11 is installed between the bottom surface of the support plate 6 and the inner bottom surface of the housing 1. The shock absorber 11 can buffer the quartz flexible accelerometer body 2 when it is subjected to vibration.

[0023] Multiple layers of rubber pads 12 and protective components are fixedly installed between the top surface of the support plate 6 and the inner bottom surface of the housing 1, and the protective components are located on the side close to the main body 2 of the quartz flexible accelerometer. The protective components consist of a sleeve 13 and a sleeve rod 14. By setting multiple layers of rubber pads 12 and protective components, the main body 2 of the quartz flexible accelerometer can be limited when it moves up and down due to buffering, preventing the main body 2 of the quartz flexible accelerometer from moving too much and causing damage. At the same time, it can also make it return to its original state more quickly.

[0024] The top surface of the box body 1 is fixedly provided with a limiting sleeve 3, and the surface of the quartz flexible accelerometer body 2 is fixedly provided with a fixing sleeve 4, which is slidably connected with the limiting sleeve 3 through a clamping block 5. When the quartz flexible accelerometer body 2 moves up and down, the clamping block 5 will slide on the limiting sleeve 3, and the limiting effect can also be achieved.

[0025] A sliding groove 7 is formed in the inner wall of the box body 1, a sliding block 8 is slidably arranged in the sliding groove 7, and a mounting frame 10 is fixedly arranged on the inner wall of the sliding groove 7. An installation groove is formed in the side of the sliding block 8 facing the mounting frame 10, and a spring 9 is connected between the installation groove and the mounting frame 10. When the quartz flexible accelerometer body 2 is driven to move the supporting plate 6, the supporting plate 6 will drive the sliding block 8 to move along the sliding groove 7, and the spring 9 will be correspondingly stretched and contracted during the movement of the sliding block 8.

[0026] The multilayer rubber pad 12 and the protective piece are distributed along the circumference of the quartz flexible accelerometer, and the inner wall of the sleeve 13 is provided with a sliding groove. The surface of the sleeve rod 14 is fixedly provided with a square block 15, and the square block 15 is slidably arranged in the sliding groove. The sleeve rod 14 can be guided by sliding along the sliding groove through the square block 15, and the cooperation between the sleeve rod 14 and the sleeve 13, combined with the multilayer rubber pad 12, can achieve the effects of buffering and limiting.

[0027] A limiting groove is symmetrically formed in the limiting sleeve 3, the clamping block 5 is fixedly arranged on the fixing sleeve 4, and the clamping block 5 is slidably arranged in the limiting groove. The fixing sleeve 4 moves along the limiting groove with the movement of the quartz flexible accelerometer body 2, which can play a guiding role.

[0028] A through groove is formed in the middle of the top surface of the box body 1, the quartz flexible accelerometer is slidably arranged in the through groove, the fixing sleeve 4 is arranged on the top of the box body 1, and the outer diameter of the fixing sleeve 4 is greater than the diameter of the through groove. The bottom surface of the fixing sleeve 4 is pasted with a rubber pad, which can play a buffering role when contacting the box body 1.

[0029] During operation, the top surface of the supporting plate 6 and the inner wall of the box body 1 are provided with multilayer rubber pads 12, sleeves 13 and sleeve rods 14, and the sleeves 13 and the sleeve rods 14 are arranged on the side close to the quartz flexible accelerometer body 2, which plays an isolation role to prevent the contraction of the multilayer rubber pad 12 from affecting the movement of the quartz flexible accelerometer body 2. The surface of the quartz flexible accelerometer body 2 is fixedly provided with a fixing sleeve 4, the top surface of the box body 1 is fixedly provided with a limiting sleeve 3, the fixing sleeve 4 is slidably connected with the limiting sleeve 3, which can limit the movement of the quartz flexible accelerometer body 2 to a certain extent, prevent the movement amplitude from being too large, and make it recover to the original state quickly.

[0030] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A shock-resistant quartz flexible accelerometer comprising a quartz flexible accelerometer body (2) disposed in a case (1), characterized in that, The box (1) is internally provided with a support plate (6), and a shock absorber (11) is installed between the bottom surface of the support plate (6) and the inner bottom surface of the box (1); a plurality of rubber pads (12) and a protective piece are fixedly arranged between the top surface of the support plate (6) and the inner bottom surface of the box (1), and the protective piece is arranged on the side close to the quartz flexible accelerometer body (2); the protective piece is composed of a sleeve (13) and a sleeve rod (14); a limiting sleeve (3) is fixedly installed on the top surface of the box (1), and a fixed sleeve (4) is fixedly sleeved on the surface of the quartz flexible accelerometer body (2), and the fixed sleeve (4) is slidably connected with the limiting sleeve (3) through a clamping block (5).

2. The shock-resistant quartz flexure accelerometer of claim 1 wherein, A sliding groove (7) is formed in the inner wall of the box (1), and a sliding block (8) is slidably arranged in the sliding groove (7), and an installation frame (10) is fixedly installed on the inner wall of the sliding groove (7).

3. A shock-resistant quartz flexure accelerometer according to claim 2, wherein An installation groove is formed in the side of the sliding block (8) facing the installation frame (10), and springs (9) are connected between the installation groove and the installation frame (10).

4. The shock-resistant quartz flexure accelerometer of claim 1 wherein, The plurality of rubber pads (12) and the protective piece are circumferentially distributed around the quartz flexible accelerometer, and a sliding groove is formed in the inner wall of the sleeve (13).

5. A shock-resistant quartz flexure accelerometer according to claim 4, wherein A square block (15) is fixedly arranged on the surface of the sleeve rod (14), and the square block (15) is slidably arranged in the sliding groove.

6. The shock-resistant quartz flexure accelerometer of claim 1 wherein, A limiting groove is symmetrically formed in the limiting sleeve (3), the clamping block (5) is fixedly arranged on the fixed sleeve (4), and the clamping block (5) is slidably arranged in the limiting groove.

7. The shock-resistant quartz flexure accelerometer of claim 1 wherein, A through groove is formed in the middle of the top surface of the box (1), the quartz flexible accelerometer is slidably arranged in the through groove, the fixed sleeve (4) is arranged on the top of the box (1), and the outer diameter of the fixed sleeve (4) is greater than the diameter of the through groove.

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