CN218601312U

CN218601312U - Piezoelectric acceleration sensor

Info

Publication number: CN218601312U
Application number: CN202222574161.4U
Authority: CN
Inventors: 韩刚; 吴必均
Original assignee: Fuqiu Technology Shenzhen Co ltd
Current assignee: Fuqiu Technology Shenzhen Co ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2023-03-10
Anticipated expiration: 2032-09-28

Abstract

The utility model belongs to the technical field of piezoelectric acceleration sensor technique and specifically relates to a piezoelectric acceleration sensor, including metal casing and screw thread, protector is installed to metal casing's top, connecting device is installed in protector's the outside. Can be connected with the device through the structure of metal casing below, and cooperate other electrical components to carry out piezoelectricity acceleration to the device and detect, after accomplishing the use, can outwards stimulate the baffle, make the baffle rotate in first concave plate department, install the protective housing on cable connector, and make the sealing washer inner wall of protective housing opening part and the outer wall laminating of cable connector, make the baffle reset under the elastic force effect of spring, alright fix the protective housing like this, even this device accident drops or receives external article collision, the protective housing is difficult for dropping, just improved the leakproofness of junction through the sealing washer in the protective housing simultaneously, can effectually play the dust proof, the effect of debris and water.

Description

Piezoelectric acceleration sensor

Technical Field

The utility model relates to a piezoelectricity acceleration sensor technical field specifically is a piezoelectricity acceleration sensor.

Background

The piezoelectric acceleration sensor is also called piezoelectric accelerometer, it also belongs to inertial sensor, it utilizes the piezoelectric effect of some substance such as quartz crystal, when the accelerometer is vibrated, the force of the mass block on the piezoelectric element is changed.

A protected piezoelectric acceleration sensor, such as that of publication No. CN 217384632U, comprises a magnet mount. The protective piezoelectric acceleration sensor is arranged at the bottom of a bolt through the magnet mounting seat, and has certain stability, so that the magnet mounting seat is placed on equipment, and the problem that the magnet mounting seat moves or falls to the ground cannot occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving current piezoelectric acceleration sensor when using, only through with the protective housing cover on the device, and do not set up fixed and sealed water blocking structure, the protecting effect is lower like this, and the piezoelectric acceleration sensor who provides.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the design is a piezoelectric acceleration sensor, which comprises a metal shell and threads, wherein the threads are machined on the outer wall of the lower portion of the metal shell, a bolt is fixedly connected to the outer wall of the middle of the metal shell, a protection device is installed above the metal shell, and a connecting device is installed on the outer side of the protection device.

Preferably, the protection device comprises a sensor body, the lower portion of the sensor body is fixedly connected with the metal shell, a cable connector is fixedly connected to the upper portion of the sensor body, a protective shell is mounted on the outer wall of the cable connector, the lower surface of the protective shell is attached to the upper surface of the sensor body, a sealing ring is fixedly connected to the inner wall of the opening in the lower portion of the protective shell, the inner wall of the sealing ring is attached to the outer wall of the cable connector, baffles are mounted on the left side and the right side of the protective shell, and the inner wall of the groove of the protective shell is in clearance fit with the inner wall of the inner side of the upper portion of each baffle.

Preferably, the outer wall of the upper part of the sensor body is fixedly connected with a disc, and two ends of the upper part of the disc are fixedly connected with a vertical plate.

Preferably, the rigid coupling has first notch plate in the middle of the inboard of riser, and the groove of first notch plate passes through the pivot and the baffle rotates continuously, and the baffle can rotate in first notch plate department through the pivot like this.

Preferably, the connecting device comprises a cross rod, the left side and the right side of the cross rod are in clearance fit with the inner wall of the through hole of the vertical plate, the inner side and the outer side of the cross rod are fixedly connected with a second concave plate and a stop block respectively, a sliding block is fixedly connected with the groove of the second concave plate, and the outer wall of the sliding block is in sliding clamping with the sliding groove of the stop plate.

Preferably, the spring is installed to the outside outer wall of horizontal pole, and the both ends outer wall of spring respectively with riser and dog looks rigid coupling, the baffle can support the protective housing tightly fixedly like this through the elasticity performance of spring.

The utility model provides a pair of piezoelectric acceleration sensor, beneficial effect lies in: can be connected with the device through structure below metal casing, and cooperate other electrical components to carry out piezoelectricity acceleration to the device and detect, after accomplishing the use, can outwards stimulate the baffle, make the baffle rotate in first concave plate department, the baffle drives second concave plate outwards through the slider simultaneously, make second concave plate drive the horizontal pole and move, the horizontal pole drives the dog and moves, dog cooperation riser can make the spring take place elastic deformation like this, later install the protective housing on cable connector, and make the sealing washer inner wall of protective housing opening part and the outer wall laminating of cable connector, after the laminating of the below of protective housing and the top of sensor body, loosen the baffle, make the baffle reset under the elastic force effect of spring, the inboard top of baffle can enter into the recess of protective housing simultaneously, so alright with fixed protective housing, even this device accident drops or receives external article collision, the protective housing is difficult for dropping, just improved the leakproofness of junction through the sealing washer in the protective housing simultaneously, can effectually play the effect of dust-proof, debris and water.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic view of the sensor body, the first notch plate and the seal ring of FIG. 2;

FIG. 4 is a schematic view of the structure of the slider, the second concave plate and the cross bar of FIG. 2;

fig. 5 is a schematic view of the flange, threads and metal housing of fig. 2.

In the figure: 1. metal casing, 2, screw thread, 3, protector, 301, sensor body, 302, cable connector, 303, protective housing, 304, sealing washer, 305, baffle, 3A1, ring flange, 3A2, flange hole, 4, connecting device, 401, horizontal pole, 402, second notch plate, 403, dog, 404, slider, 5, bolt, 6, disc, 7, riser, 8, first notch plate, 9, spring.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

referring to fig. 1-5, in this embodiment, a piezoelectric acceleration sensor, including metal casing 1 and screw thread 2, the processing of the below outer wall of metal casing 1 has screw thread 2, the middle outer wall rigid coupling of metal casing 1 has bolt 5, conveniently drive this device through bolt 5 and rotate, protector 3 is installed to metal casing 1's top, can be better protect the structure on the metal casing 1 through protector 3, connecting device 4 is installed in protector 3's the outside, can be fixed protective housing 303 through connecting device 4, avoid it to drop.

Referring to fig. 1-4, the protection device 3 includes a sensor body 301, a cable connector 302, a protective shell 303, a sealing ring 304 and a baffle 305, the lower portion of the sensor body 301 is fixedly connected to the metal housing 1, the sensor body 301 is a piezoelectric acceleration sensor, the type of which can be selected according to the user's requirement, the cable connector 302 is fixedly connected to the upper portion of the sensor body 301, the protective shell 303 is installed on the outer wall of the cable connector 302, the cable connector 302 can be protected by the protective shell 303, grooves and openings are respectively formed on the left side, the right side and the lower portion of the protective shell 303, the lower surface of the protective shell 303 is attached to the upper surface of the sensor body 301, the sealing ring 304 is fixedly connected to the inner wall of the opening below the protective shell 303, the inner wall of the sealing ring 304 is attached to the outer wall of the cable connector 302, and the sealing performance at the connection with the cable connector 302 can be improved by the sealing ring 304, the sensor comprises a protective shell 303, baffles 305 are arranged on the left side and the right side of the protective shell 303, the outer wall of the upper inner side of each baffle 305 is in clearance fit with the inner wall of a groove of the protective shell 303, the protective shell 303 can be tightly fixed through the baffles 305, a sliding groove is machined in each baffle 305, a disc 6 is fixedly connected to the outer wall of the upper side of a sensor body 301, vertical plates 7 are fixedly connected to the two upper ends of each disc 6, through holes are machined in the vertical plates 7, a first concave plate 8 is fixedly connected to the middle of the inner side of each vertical plate 7, and the groove of each first concave plate 8 is rotatably connected with the corresponding baffle 305 through a rotating shaft, wherein the sensor body 301 can be connected with external equipment through a cable connector 302, a metal shell 1 and the like so as to perform piezoelectric acceleration detection, and the technical means disclosed in a protective piezoelectric acceleration sensor with an authorization notice number CN 217384632U are adopted in the technology, therefore, the detailed principle can be referred to the cited patent, so that the detailed description is not repeated;

the device can be connected through a structure below the metal shell 1, piezoelectric acceleration detection can be carried out on the device by matching with other electrical elements, after the device is used, the baffle 305 can be pulled outwards to enable the baffle 305 to rotate at the first concave plate 8, then the protective shell 303 is installed on the cable connector 302, the inner wall of the sealing ring 304 at the opening of the protective shell 303 is attached to the outer wall of the cable connector 302, after the lower portion of the protective shell 303 is attached to the upper portion of the sensor body 301, the baffle 305 is loosened to enable the baffle 305 to reset under the elastic force of the spring 9, meanwhile, the upper portion of the inner side of the baffle 305 can enter the groove of the protective shell 303, and therefore the protective shell 303 can be fixed, even if the device accidentally drops or is collided by an external object, the protective shell 303 is not easy to drop, meanwhile, the sealing performance of the connection position is improved through the sealing ring 304 in the protective shell 303, and the effect of dust, sundries and water can be effectively achieved.

Referring to fig. 1, 2 and 4, the connecting device 4 includes a cross bar 401, a second concave plate 402, a stopper 403 and a slider 404, the middle outer wall of the left and right cross bars 401 is in clearance fit with the inner wall of the through hole of the vertical plate 7, the inner side and the outer side of the cross bar 401 are respectively fixedly connected with the second concave plate 402 and the stopper 403, the groove of the second concave plate 402 is fixedly connected with the slider 404, the outer wall of the slider 404 is slidably connected with the chute of the stopper 305, the stopper 305 can drive the second concave plate 402 to move through the slider 404, the outer wall of the outer side of the cross bar 401 is provided with a spring 9, the outer walls of the two ends of the spring 9 are respectively fixedly connected with the vertical plate 7 and the stopper 403, and when the second concave plate 402 drives the cross bar 401 to move outwards, the spring 9 can be elastically deformed;

after pulling baffle 305, baffle 305 drives second notch plate 402 to move to the outside through slider 404, makes second notch plate 402 drive horizontal pole 401 and moves, and horizontal pole 401 drives dog 305 and moves, and dog 305 cooperation riser 7 can make spring 9 take place elastic deformation like this, like this when unclamping baffle 305 after, baffle 305 can reset through spring 9's elasticity performance.

In this embodiment, when an operator needs to use the piezoelectric acceleration sensor, the operator may first connect to the device through a structure below the metal housing 1, and perform piezoelectric acceleration detection on the device in cooperation with other electrical components, after the use is completed, the baffle 305 may be pulled outward, so that the baffle 305 rotates at the first concave plate 8, meanwhile, the baffle 305 drives the second concave plate 402 to move outward through the slider 404, so that the second concave plate 402 drives the cross rod 401 to move, the cross rod 401 drives the stopper 305 to move, so that the stopper 305 cooperates with the vertical plate 7 to elastically deform the spring 9, then the protective housing 303 is mounted on the cable connector 302, and the inner wall of the sealing ring 304 at the opening of the protective housing 303 is attached to the outer wall of the cable connector 302, after the lower portion of the protective housing 303 is attached to the upper portion of the sensor body 301, the baffle 305 is released, so that the baffle 305 is reset under the elastic force of the spring 9, and the inner side upper portion of the baffle 305 may enter the groove of the protective housing 303, so that the protective housing 303 may be fixed, even if the device accidentally drops or is collided by an external object, the protective housing 303 is easily dropped, and the sealing performance of the sealing ring 304 in the protective housing 303 is improved, and the sealing performance of the sealing function of the sealing of the water and dust and the dust can be effectively prevented.

Example 2:

referring to fig. 1-5, in this embodiment, the utility model provides a technical solution: a piezoelectric acceleration sensor, the protector 3 can also include flange 3A1 and flange hole 3A2, the through hole inner wall of the flange 3A1 couples to whorl 2 of the metal casing 1, there are 4 flange holes 3A2 inside the flange 3A 1;

can set up ring flange 3A1 in metal casing 1's below to ring flange 3A 1's through-hole department inner wall links to each other with metal casing 1's screw thread 2 department screw thread, and processing has flange hole 3A2 on ring flange 3A1 simultaneously, alright so with quick with ring flange 3A1 installation, rethread ring flange 3A1 is connected with detection device.

In this embodiment, when operating personnel need use piezoelectricity acceleration sensor, can set up ring flange 3A1 in metal casing 1's below to ring flange 3A 1's through-hole department inner wall links to each other with metal casing 1's screw thread 2 department screw thread, and processing has flange hole 3A2 simultaneously on ring flange 3A1, alright install ring flange 3A1 with quick like this, and rethread ring flange 3A1 is connected with detection device.

While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

Claims

1. The utility model provides a piezoelectric acceleration sensor, includes metal casing (1) and screw thread (2), the below outer wall processing of metal casing (1) has screw thread (2), its characterized in that: a bolt (5) is fixedly connected to the outer wall of the middle of the metal shell (1), a protection device (3) is mounted above the metal shell (1), and a connecting device (4) is mounted on the outer side of the protection device (3);

protector (3) include sensor body (301), the below and metal casing (1) looks rigid coupling of sensor body (301), the top rigid coupling of sensor body (301) has cable connector (302), protective housing (303) are installed to the outer wall of cable connector (302), and the lower surface of protective housing (303) and the upper surface of sensor body (301) laminate mutually, the below opening part inner wall rigid coupling of protective housing (303) has sealing washer (304), and the inner wall of sealing washer (304) laminates mutually with the outer wall of cable connector (302), baffle (305) are installed to the left and right sides of protective housing (303), and the inboard outer wall in top of baffle (305) and the groove department inner wall clearance fit of protective housing (303).

2. A piezoelectric acceleration sensor according to claim 1, characterized in that: the sensor is characterized in that a disc (6) is fixedly connected to the outer wall of the upper portion of the sensor body (301), and vertical plates (7) are fixedly connected to the two ends of the upper portion of the disc (6).

3. A piezoelectric acceleration sensor according to claim 2, characterized in that: the middle rigid coupling of the inboard of riser (7) has first notch plate (8), and the groove of first notch plate (8) is passed through the pivot and is rotated with baffle (305) and be linked to each other.

4. A piezoelectric acceleration sensor according to claim 1, characterized in that: connecting device (4) are including horizontal pole (401), control the through-hole department inner wall clearance fit of the middle outer wall of horizontal pole (401) and riser (7), the inside and outside both sides of horizontal pole (401) rigid coupling respectively has second concave plate (402) and dog (403), the groove fixing of second concave plate (402) has slider (404), and the outer wall of slider (404) and the spout department slip joint of baffle (305).

5. A piezoelectric acceleration sensor according to claim 4, characterized in that: the outer side outer wall of horizontal pole (401) is installed spring (9), and the both ends outer wall of spring (9) respectively with riser (7) and dog (403) looks rigid coupling.