CN210430261U

CN210430261U - Connection structure of piezoelectric beam type vibration sensor and cable

Info

Publication number: CN210430261U
Application number: CN201921937129.XU
Authority: CN
Inventors: 蒲育; 罗玚; 刘君; 赵海英
Original assignee: Lanzhou Institute of Technology
Current assignee: Lanzhou Institute of Technology
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-04-28
Anticipated expiration: 2029-11-11

Abstract

The utility model discloses a connection structure of piezoelectric beam type vibration sensor and cable, including vibrations sensor body and cable body, install the sleeve pipe on the vibrations sensor body, the sheathed tube inner chamber is equipped with the contact pin with vibrations sensor body matched with, and the sheathed tube inner chamber endotheca is equipped with the adapter sleeve with contact pin matched with, be equipped with the terminal with cable core matched with on the cable body, the one end that the cable body is close to the terminal is circular array and is equipped with a plurality of clamp plates with adapter sleeve matched with, fixedly connected with compresses tightly the pad with terminal and contact pin matched with respectively on the clamp plate; the utility model has the advantages that the binding post is inserted into the sleeve and is matched and connected with the contact pin, and simultaneously, the compressing pad is tightly pressed on the binding post and the contact pin due to the matching of the fastening sleeve and the pressing plate, so that the binding post and the contact pin are tightly combined; then mutually support with sleeve pipe and inscription section of thick bamboo respectively through the connecting cylinder for be connected between vibrations sensor body and the cable body inseparabler.

Description

Connection structure of piezoelectric beam type vibration sensor and cable

Technical Field

The utility model belongs to the technical field of coupling mechanism technique and specifically relates to a connection structure of piezoelectricity beam type vibration sensor and cable.

Background

Piezoelectric sensors are sensors based on the piezoelectric effect. The surface of the piezoelectric material generates electric charge after being stressed, and the electric charge is amplified by the charge amplifier and the measuring circuit and is converted into impedance to be output in direct proportion to the electric quantity of the external force. Piezoelectric transducers are used to measure forces and non-electrical physical quantities that can be converted into electricity. Its advantages are wide frequency band, high sensitivity, high S/N ratio, simple structure, high reliability and light weight.

Cables are generally formed by twisting several or groups of at least two conductors, each group insulated from each other and often twisted around a center, with a highly insulating covering the entire outside. The cable has the characteristics of internal electrification and external insulation.

In prior art, piezoelectric type vibration sensor and cable adopt electric connector to carry out the screw thread butt joint usually, and this kind of connected mode, contact pin and jack pass through the jump ring butt joint, under high-frequency vibration and high low temperature environment, can produce the little displacement of axial between the screw thread to lead to producing the triboelectric noise between contact pin and the jack, produce very big interference to the small electric charge signal of piezoelectric type vibration sensor output, seriously influenced signal measurement's the degree of accuracy.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a connection structure of piezoelectricity beam type vibration sensor and cable to solve the problem that proposes among the above-mentioned background art.

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

a connection structure of a piezoelectric beam type vibration sensor and a cable comprises a vibration sensor body and a cable body, wherein a sleeve is installed on the vibration sensor body, a contact pin matched with the vibration sensor body is arranged in an inner cavity of the sleeve, a fastening sleeve matched with the contact pin is sleeved in the inner cavity of the sleeve, the inner circular surface of the fastening sleeve is of a conical surface structure, a binding post matched with a cable core is arranged on the cable body, a plurality of pressing plates matched with the fastening sleeve are arranged at one end, close to the binding post, of the cable body in a circular array, a pressing pad matched with the binding post and the contact pin is fixedly connected onto the pressing plates, the pressing pad is made of insulating elastic materials, an inner connecting cylinder matched with the sleeve is fixedly connected to one end, close to the binding post, of the cable body, and a connecting cylinder matched with the inner connecting cylinder is in threaded, the connecting cylinder is in threaded connection with the inner connecting cylinder, the wiring terminal is inserted into the sleeve and is in matched connection with the contact pin during connection, and meanwhile due to the matching of the fastening sleeve and the pressing plate, the pressing pad presses the wiring terminal and the contact pin tightly, so that the wiring terminal and the contact pin are tightly combined; then mutually support with sleeve pipe and inscription section of thick bamboo respectively through the connecting cylinder for be connected between vibrations sensor body and the cable body inseparabler, thereby guarantee whole connecting device's connection stability, the production of noise can effectually be prevented, the smooth operation of assurance whole device.

In a further embodiment, the connecting cylinder comprises a cylinder body which is of a cylindrical structure, an anti-slip groove is formed in the outer circular surface of the cylinder body, a first anti-slip sleeve is arranged in the inner cavity of the anti-slip groove, and the first anti-slip sleeve is matched with the anti-slip groove, so that the operation convenience of the cylinder body can be improved, and the connection between the vibration sensor body and the cable body is facilitated.

In a further embodiment, the top end of the connecting cylinder is provided with a limiting hole matched with the inner connecting cylinder, the top end of the limiting hole is connected with a limiting pipe in a run-through manner, the top end of the limiting pipe is sleeved with a sealing cover, the limiting pipe is in threaded connection with the sealing cover, the top wall of the inner cavity of the sealing cover is fixedly connected with a pressing rod, the bottom end of the pressing rod is rotatably connected with a limiting plate matched with the inner connecting cylinder through a bearing seat, the bottom end of the limiting plate is uniformly provided with a plurality of bulges matched with the inner connecting cylinder, the pressing rod is driven to rotate positively by rotating the sealing cover positively, the limiting plate is pushed to descend along with the descending of the sealing cover, so that the limiting plate is tightly attached to the inner connecting cylinder in a matching way with the bulge, thereby further improve the fastness of connection of connecting cylinder and inscription section of thick bamboo to further improve the fastness of connection between vibrations sensor body and the cable body.

In further embodiment, the outside cover of sealed lid is equipped with second antiskid cover, second antiskid cover chooses for use the rubber material preparation to form, and the outer disc of second antiskid cover is even is equipped with a plurality of spouts, through setting up second antiskid cover, can promote the convenience of sealed lid operation by a wide margin.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model has the advantages that the binding post is inserted into the sleeve and is matched and connected with the contact pin, and simultaneously, the compressing pad is tightly pressed on the binding post and the contact pin due to the matching of the fastening sleeve and the pressing plate, so that the binding post and the contact pin are tightly combined; then, the connecting cylinder is respectively matched with the sleeve and the inner connecting cylinder, so that the connection between the vibration sensor body and the cable body is tighter, the connection stability of the whole connecting device is ensured, the generation of noise can be effectively prevented, and the smooth operation of the whole device is ensured;

2. the utility model can improve the operation convenience of the cylinder body and facilitate the connection of the vibration sensor body and the cable body by the mutual matching of the first anti-slip sleeve and the anti-slip groove;

3. the utility model discloses a sealed lid is rotated to the forward, drives the compressing rod forward and rotates, along with sealed lid descends, promotes the limiting plate and descends for the limiting plate cooperation is protruding to be hugged closely on the inner connecting tube, thereby further improves the firm in connection nature of connecting tube and inner connecting tube, thereby further improves the firm in connection nature between vibrations sensor body and the cable body.

Drawings

Fig. 1 is a schematic structural view of a connection structure of a piezoelectric beam type vibration sensor and a cable;

fig. 2 is a schematic perspective view of a joint cylinder of a joint structure of a piezoelectric beam type vibration sensor and a cable;

fig. 3 is a structural diagram showing a fitting relationship between a connector barrel and an inner barrel of a connection structure of a piezoelectric beam type vibration sensor and a cable.

In the figure: 1-vibration sensor body, 2-cable body, 3-sleeve, 4-pin, 5-fastening sleeve, 6-binding post, 7-pressing plate, 8-pressing pad, 9-internal connecting cylinder, 10-connecting cylinder, 101-cylinder, 102-anti-slip groove, 103-first anti-slip sleeve, 11-limiting hole, 12-limiting pipe, 13-sealing cover, 14-pressing rod, 15-bearing seat, 16-limiting plate, 17-bump and 18-second anti-slip sleeve.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

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. 1-2, a connection structure of a piezoelectric beam type vibration sensor and a cable comprises a vibration sensor body 1 and a cable body 2, wherein a sleeve 3 is installed on the vibration sensor body 1, a contact pin 4 matched with the vibration sensor body 1 is arranged in an inner cavity of the sleeve 3, a fastening sleeve 5 matched with the contact pin 4 is sleeved in the inner cavity of the sleeve 3, the inner circular surface of the fastening sleeve 5 is in a conical surface structure, a binding post 6 matched with a cable core is arranged on the cable body 2, a plurality of pressing plates 7 matched with the fastening sleeve 5 are arranged at one end, close to the binding post 6, of the cable body 2 in a circular array, pressing pads 8 respectively matched with the binding post 6 and the contact pin 4 are fixedly connected to the pressing plates 7, the pressing pads 8 are made of insulating elastic materials, and an internal connecting cylinder 9 matched with the sleeve 3 is fixedly connected to one end, close to the binding post 6, of, the outer side of the sleeve 3 is in threaded connection with a connecting barrel 10 matched with the inner connecting barrel 9, the connecting barrel 10 is in threaded connection with the inner connecting barrel 9, the wiring terminal 6 is inserted into the sleeve 3 and is in matched connection with the contact pin 4 during connection, and meanwhile due to the matching of the fastening sleeve 5 and the pressing plate 7, the pressing pad 8 presses the wiring terminal 6 and the contact pin 4 tightly, so that the wiring terminal 6 is tightly combined with the contact pin 4; then mutually support with sleeve pipe 3 and inscription section of thick bamboo 9 respectively through connecting cylinder 10 for be connected between vibrations sensor body 1 and the cable body 2 inseparabler, thereby guarantee whole connecting device's connection stability, the production of effectual noise prevention can guarantee the smooth operation of whole device.

The connecting cylinder 10 comprises a cylinder body 101, the cylinder body 101 is of a cylindrical structure, an anti-slip groove 102 is formed in the outer circumferential surface of the cylinder body 101, a first anti-slip sleeve 103 is arranged in the inner cavity of the anti-slip groove 102, and the first anti-slip sleeve 103 is matched with the anti-slip groove 102, so that the operation convenience of the cylinder body 101 can be improved, and the connection between the vibration sensor body 1 and the cable body 2 is facilitated.

Example 2

Referring to fig. 3, the difference from example 1 is: the top end of the connecting cylinder 10 is provided with a limiting hole 11 matched with the inner connecting cylinder 9, the top end of the limiting hole 11 is connected with a limiting pipe 12 in a penetrating way, the top end of the limiting pipe 12 is sleeved with a sealing cover 13, the limiting pipe 12 is in threaded connection with the sealing cover 13, a pressing rod 14 is fixedly connected to the top wall of the inner cavity of the sealing cover 13, a limiting plate 16 matched with the inner cylinder 9 is rotatably connected to the bottom end of the pressing rod 14 through a bearing seat 15, the bottom end of the limit plate 16 is uniformly provided with a plurality of bulges 17 matched with the internal connecting cylinder 9, the pressing rod 14 is driven to rotate positively by rotating the sealing cover 13 positively, the limiting plate 16 is pushed to descend along with the descending of the sealing cover 13, so that the limiting plate 16 is tightly attached to the inner connecting cylinder 9 in a manner of matching with the bulge 17, thereby further improving the fastness of connection of connecting cylinder 10 and inscription section of thick bamboo 9 to further improve the fastness of connection between vibrations sensor body 1 and the cable body 2.

The outside cover of sealed lid 13 is equipped with second antiskid cover 18, second antiskid cover 18 chooses for use the rubber material preparation to form, and the outer disc of second antiskid cover 18 is even is equipped with a plurality of spouts, through setting up second antiskid cover 18, can promote the convenience of sealed lid 13 operation by a wide margin.

Working principle of examples 1-2: during connection, the binding post 6 is inserted into the sleeve 3 and is in fit connection with the contact pin 4, and meanwhile, due to the fit of the fastening sleeve 5 and the pressing plate 7, the pressing pad 8 presses the binding post 6 and the contact pin 4 tightly, so that the binding post 6 is tightly combined with the contact pin 4; then, the connecting cylinder 10 is respectively matched with the sleeve 3 and the inner connecting cylinder 9, so that the connection between the vibration sensor body 1 and the cable body 2 is tighter, the connection stability of the whole connecting device is ensured, the generation of noise can be effectively prevented, and the smooth operation of the whole device is ensured; simultaneously, through the sealed lid 13 of forward rotation, drive and compress tightly 14 forward rotations, along with sealed lid 13 descends, promote limiting plate 16 and descend for limiting plate 16 cooperation arch 17 is hugged closely on interior a section of thick bamboo 9, thereby further improves the fastness of being connected of connecting cylinder 10 and interior a section of thick bamboo 9, thereby further improves the fastness of being connected between vibrations sensor body 1 and the cable body 2.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A connection structure of a piezoelectric beam type vibration sensor and a cable comprises a vibration sensor body (1) and a cable body (2) and is characterized in that a sleeve (3) is installed on the vibration sensor body (1), a contact pin (4) matched with the vibration sensor body (1) is arranged in an inner cavity of the sleeve (3), a fastening sleeve (5) matched with the contact pin (4) is sleeved in the inner cavity of the sleeve (3), the inner circular surface of the fastening sleeve (5) is of a conical surface structure, a binding post (6) matched with a cable core is arranged on the cable body (2), a plurality of pressing plates (7) matched with the fastening sleeve (5) are arranged at one end, close to the binding post (6), of the cable body (2) in a circular array, and pressing pads (8) respectively matched with the binding post (6) and the contact pin (4) are fixedly connected to the pressing plates (7), one end of the cable body (2) close to the binding post (6) is fixedly connected with an internal connecting cylinder (9) matched with the sleeve (3), the outer side of the sleeve (3) is in threaded connection with a connecting cylinder (10) matched with the internal connecting cylinder (9), and the connecting cylinder (10) is in threaded connection with the internal connecting cylinder (9).

2. A piezoelectric beam type vibration transducer and cable connection structure as claimed in claim 1, wherein said pressing pad (8) is made of an insulating elastic material.

3. A connection structure of a piezoelectric beam type vibration sensor and a cable according to claim 1, wherein said connection cylinder (10) comprises a cylinder body (101), said cylinder body (101) is a cylindrical structure, an outer circumferential surface of the cylinder body (101) is provided with an anti-slip groove (102), and an inner cavity of the anti-slip groove (102) is provided with a first anti-slip sleeve (103).

4. The connection structure of a piezoelectric beam type vibration sensor and a cable according to claim 3, wherein a limiting hole (11) matched with the internal connection tube (9) is formed in the top end of the connection tube (10), a limiting tube (12) is connected to the top end of the limiting hole (11) in a penetrating manner, a sealing cover (13) is sleeved on the top end of the limiting tube (12), the limiting tube (12) is in threaded connection with the sealing cover (13), a pressing rod (14) is fixedly connected to the top wall of the inner cavity of the sealing cover (13), and a limiting plate (16) matched with the internal connection tube (9) is rotatably connected to the bottom end of the pressing rod (14) through a bearing seat (15).

5. A piezoelectric beam type vibration sensor and cable connection structure as claimed in claim 4, wherein said plate (16) is provided with a plurality of protrusions (17) uniformly at its bottom end for engaging with the internal cylinder (9).

6. The connection structure of a piezoelectric beam type vibration sensor and a cable according to claim 4, wherein a second anti-slip sleeve (18) is sleeved on the outer side of the sealing cover (13), and a plurality of sliding grooves are uniformly formed in the outer circumferential surface of the second anti-slip sleeve (18).

7. A piezoelectric beam vibration sensor and cable connection according to claim 6, wherein said second anti-slip cover (18) is made of rubber.