CN210922826U

CN210922826U - Protection device of low-frequency vibration sensor

Info

Publication number: CN210922826U
Application number: CN201921514294.4U
Authority: CN
Inventors: 郑大鹏; 程朕
Original assignee: Anhui Hengxin Hongce Electronic Technology Co ltd
Current assignee: Anhui Hengxin Hongce Electronic Technology Co ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-07-03
Anticipated expiration: 2029-09-12

Abstract

The utility model discloses a protector of low frequency vibration sensor, including the sensor body, the outside of stating the sensor body is equipped with the protection box, and the internal sealed adiabatic ware that is fixed with of protection box, sealed adiabatic ware adopt the vacuum insulation panel preparation, and the sensor body arranges sealed adiabatic ware in, the protection box inner wall has the shock attenuation bucket through screw fixedly connected with, and the equal sliding connection of shock attenuation bucket inner wall has the pillar, the one end of pillar is passed through the fix with screw on sealed adiabatic ware outer wall, all is fixed with the elastic component between the bottom surface in pillar and the shock attenuation bucket, the detection probe of sensor body passes sealed adiabatic ware and protection box in the outside. The utility model discloses the influence of high temperature and external force can be avoided to well sensor body, and the measuring accuracy of fine assurance sensor is equipped with protection machanism on detecting probe in addition, avoids material etc. to drop and easily leads to detecting probe to damage, prolongs the life of sensor body.

Description

Protection device of low-frequency vibration sensor

Technical Field

The utility model relates to a sensor protection technical field especially relates to a low frequency vibration sensor's protector.

Background

The low-frequency vibration sensor is mainly used for measuring the vibration of the hydroelectric generating set, the low-speed rotating machine, the engineering building, the bridge and the like, the vibration measured by the sensor is absolute vibration relative to free space, the output voltage signal of the sensor is in direct proportion to the vibration amplitude, and the sensor is directly installed outside the machine, so that the use and the maintenance are very convenient.

As shown in fig. 5, most of the low-frequency vibration sensors in the prior art are directly mounted on the measured machine, and usually no protective device is provided outside the low-frequency vibration sensor.

In the use of the low-frequency vibration sensor, because the measured machinery can give off heat to lead to the internal control element of the low-frequency vibration sensor to be damaged after working for a long time, the low-frequency vibration sensor is still easily influenced by external force to measure the precision during measurement, and the detection probe of the low-frequency vibration sensor is easily damaged, and materials and the like fall when the low-frequency vibration sensor is not used to easily cause the damage of the detection probe, so that the requirement of the long-term use of the low-frequency vibration sensor can not be met, and therefore, the research on the protection device of the low-frequency vibration.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a protection device of a low-frequency vibration sensor.

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

a protection device of a low-frequency vibration sensor comprises a sensor body, wherein a protection box body is arranged on the outer side of the sensor body, a sealed heat insulation vessel is fixed in the protection box body, the sealed heat insulation vessel is made of a vacuum heat insulation plate, the sensor body is arranged in the sealed heat insulation vessel, the inner wall of the protection box body is fixedly connected with a damping barrel through screws, the inner wall of the damping barrel is connected with a strut in a sliding manner, one end of the strut is fixed on the outer wall of the sealed heat insulation vessel through screws, an elastic part is fixed between the strut and the inner bottom surface of the damping barrel, a detection probe of the sensor body penetrates through the sealed heat insulation vessel and the protection box body to the outer side, a protection mechanism is arranged on the upper portion of the detection probe and comprises a protection box, the protection box is arranged between the protection box body and the sealed heat insulation vessel, a first supporting spring is fixed between the first mounting block and the bottom surface of the first mounting groove, one end of the first mounting block, which is close to the center of the protective box, is fixedly connected with a first pressing block through a screw, the upper end of the first pressing block is fixed with guide pillars, the upper ends of four guide pillars all penetrate through the protective box body and are fixedly connected with a pressing plate at the end part, both sides of the upper end surface of the pressing plate are provided with fixing grooves, the fixing grooves and the outer sides of the pressing plate are penetrated through the fixing grooves, both sides of the fixing grooves are provided with fixing seats, the fixing seats are fixedly connected with the upper end surface of the protective box body through screws, the fixing seats are all fixedly connected with fixing rods through threads, the lower side of the first pressing block is provided with a second pressing block, one side, which is close to the second pressing block, is provided with an inclined plane, the lower side, the mounting block II and the mounting groove II are close to and all fixed with supporting spring II between the side walls of the center of the protection box, the pressing block II is close to one side of the center of the protection box and all fixed with a supporting column through screws, the other end of the supporting column is all fixed with a stabilizing block through screws, and the stabilizing block is close to one side of the center of the protection box and is provided with an arc groove.

Preferably, the shock attenuation bucket is equipped with a plurality ofly and evenly distributed on the protective housing inner wall, and the pillar is close to the shock attenuation bucket about the lower extreme outer wall all seted up the spacing groove, the shock attenuation bucket inner wall is kept away from protective housing one side about the lower extreme all through the fix with screw stopper, the equal sliding connection of stopper is at the spacing inslot.

Preferably, the side of the second pressing block close to the side of the first pressing block is provided with an inclined plane, and the inclined plane is inclined outwards from one side of the center of the protective box body.

Preferably, the upper end and the lower end of the protection box are fixed on the protection box body and the sealed heat insulation vessel through screws.

Preferably, the first mounting groove and the second mounting groove are provided with four grooves which are uniformly distributed on the inner wall and the bottom surface of the protection box.

Preferably, the fixing rod is matched with the fixing groove in shape.

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

1. the utility model discloses a place the sensor body in sealed adiabatic ware, and sealed adiabatic ware adopts the vacuum insulation panel preparation to reach fine thermal-insulated effect, avoid being measured the normal use that the machinery heat dissipation influences the sensor body for a long time of working, fine assurance the life of sensor body;

2. the utility model discloses a plurality of shock attenuation buckets are fixed at the protection box inner wall, and a plurality of pillars are fixed on the sealed adiabatic ware outer wall, and the pillar sliding connection all is fixed with the elastic component in the shock attenuation bucket and between the shock attenuation bucket bottom surface to make the sensor body reach certain cushioning effect, avoid the exogenic action to influence the measuring result, guarantee sensor body measurement accuracy;

3. the utility model discloses a protection mechanism's effect, when the sensor body does not use, through the pressure movable clamp plate of pushing down, briquetting one pressure movable briquetting two to detection probe one side move, then make it place in the fixed slot through rotating the dead lever, the firm piece reaches certain guard action with detecting probe laminating this moment, avoids material etc. to drop and easily leads to detection probe to damage, prolongs the life of sensor body;

4. the utility model discloses a spacing groove has all been seted up to lower extreme outer wall on the pillar, and the shock attenuation bucket inner wall is fixed with the stopper, and the equal sliding connection of stopper is at the spacing inslot to it is more stable to guarantee that the pillar removes in the spacing groove, thereby reaches better shockproof effect.

Drawings

Fig. 1 is a schematic structural diagram of a protection device for a low-frequency vibration sensor according to the present invention;

fig. 2 is an enlarged view of a position a in the protection device of the low frequency vibration sensor according to the present invention;

fig. 3 is a schematic structural diagram of a protection mechanism in a protection device for a low-frequency vibration sensor according to the present invention;

fig. 4 is an enlarged view of a position B in the protection device of the low frequency vibration sensor according to the present invention;

fig. 5 is a prior art diagram of a protection device for a low frequency vibration sensor according to the present invention.

In the figure: the sensor comprises a sensor body 1, a protection box body 2, a sealed heat insulation vessel 3, a damping barrel 4, a support column 5, an elastic piece 6, a limiting block 7, a detection probe 8, a protection mechanism 9, a protection box 901, a first mounting block 902, a first support spring 903, a first pressing block 904, a guide column 905, a pressing plate 906, a fixing groove 907, a fixing seat 908, a fixing rod 909, a second pressing block 910, a second mounting block 911, a second support spring 912, a support column 913, a stabilizing block 914 and an arc groove 915.

Detailed Description

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.

Example 1

Referring to fig. 1-4, a protection device for a low-frequency vibration sensor comprises a sensor body 1, a protection box body 2 is arranged on the outer side of the sensor body 1, a sealed heat insulation dish 3 is fixed in the protection box body 2, the sealed heat insulation dish 3 is made of a vacuum heat insulation plate, so that a good heat insulation effect is achieved, the sensor body 1 is arranged in the sealed heat insulation dish 3, a shock absorption barrel 4 is fixedly connected to the inner wall of the protection box body 2 through screws, a strut 5 is slidably connected to the inner wall of the shock absorption barrel 4, one end of the strut 5 is fixed on the outer wall of the sealed heat insulation dish 3 through screws, an elastic part 6 is fixed between the strut 5 and the inner bottom surface of the shock absorption barrel 4, a detection probe 8 of the sensor body 1 penetrates through the sealed heat insulation dish 3 and the protection box body 2 to the outer side, a protection mechanism 9 is arranged on the upper portion of the detection, the inner wall of the protection box 901 is provided with a first mounting groove, a first mounting block 902 is slidably connected in the first mounting groove, a first support spring 903 is fixed between the first mounting block 902 and the bottom surface of the first mounting groove, one end of the first mounting block 902 close to the center of the protection box 901 is fixedly connected with a first pressing block 904 through a screw, the upper end of the first pressing block 904 is fixedly provided with a guide post 905, the upper ends of the four guide posts 905 penetrate through the protection box body 2 and are fixedly connected with a pressing plate 906 at the end part, both sides of the upper end surface of the pressing plate 906 are provided with fixing grooves 907, the fixing grooves 907 penetrate through the outer side of the pressing plate 906, both sides of the fixing grooves 907 are provided with fixing seats 908, the fixing seats 908 are fixedly connected to the upper end surface of the protection box body 2 through screws, the fixing seats 908 are fixedly connected with fixing rods 909 through threads, the lower, two 910 downside of briquetting all is fixed with two 911 of installation piece, two mounting grooves have been seted up to the bottom surface in the protection box 901, and the equal sliding connection of two 911 of installation piece is in two mounting grooves, two 911 of installation piece and mounting groove are close to and all are fixed with two 912 of supporting spring between the protection box 901 center side wall, two 910 of briquetting are close to protection box 901 center one side and all have the support column 913 through the fix with screw, the other end of support column 913 all has the firm piece 914 through the fix with screw, firm piece 914 is close to protection box 901 center one side and has all seted up circular arc groove 915.

When the sensor body 1 is not used, the first pressing block 904 presses the second pressing block 910 to move to one side of the detection probe 8 by pressing the pressing plate 906 downwards, then the first pressing block 904 rotates the fixing rod 909 to be placed in the fixing groove 907, at the moment, the stabilizing block 914 is attached to the detection probe 8 to achieve a certain protection effect, and the detection probe 8 is prevented from being damaged easily due to the falling of materials and the like, the service life of the sensor body 1 is prolonged.

Example 2

Referring to fig. 1-4, this embodiment is the same basically as embodiment 1, and more preferably lies in, and is preferred, and shock attenuation bucket 4 is equipped with a plurality ofly and evenly distributed on protection box 2 inner wall, and pillar 5 is close to the shock attenuation bucket 4 upper and lower end outer wall and has all seted up the spacing groove, and the inner wall of shock attenuation bucket 4 is kept away from protection box 2 one side upper and lower extreme and all is fixed through the screw and has been limited block 7, and the equal sliding connection of limited block 7 is at the spacing inslot to it is more stable to guarantee that pillar 5 removes in the spacing groove, thereby reaches better shockproof effect.

Two 910 and 904 one sides that are close to of briquetting all are equipped with the inclined plane, and the inclined plane is set up by the outside slope in 2 central one sides of protective housing, guarantee that briquetting 904 can press smoothly briquetting two 910 to the removal of 2 central one sides of protective housing, the upper and lower extreme of protective housing 901 all through fix with screw on protective housing 2 and sealed adiabatic ware 3, guarantee the stability of protective housing 901, mounting groove one and mounting groove two all are equipped with four and evenly distributed on protective housing 901 inner wall and bottom surface, thereby reach better protecting effect, dead lever 909 coincide with fixed slot 907 shape, guarantee that dead lever 909 can be fixed with clamp plate 906 joint smoothly.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A protection device of a low-frequency vibration sensor comprises a sensor body (1) and is characterized in that, a protective box body (2) is arranged on the outer side of the sensor body (1), a sealing heat insulation vessel (3) is fixed in the protective box body (2), the sensor body (1) is arranged in the sealed heat insulation vessel (3), the inner wall of the protective box body (2) is fixedly connected with a damping barrel (4) through screws, the inner wall of the damping barrel (4) is connected with a strut (5) in a sliding way, one end of the strut (5) is fixed on the outer wall of the sealed heat insulation vessel (3) through a screw, an elastic part (6) is fixed between the strut (5) and the inner bottom surface of the shock absorption barrel (4), a detection probe (8) of the sensor body (1) penetrates through the sealed heat insulation vessel (3) and the protection box body (2) to the outer side, and a protection mechanism (9) is arranged at the upper part of the detection probe (8);

the protection mechanism (9) comprises a protection box (901), the protection box (901) is arranged between a protection box body (2) and a sealed heat insulation dish (3), the inner wall of the protection box (901) is provided with a first installation groove, a first installation block (902) is connected in the first installation groove in a sliding manner, a first support spring (903) is fixed between the first installation block (902) and the bottom surface of the first installation groove, one end, close to the center of the protection box (901), of the first installation block (902) is fixedly connected with a first pressing block (904) through screws, guide pillars (905) are fixed at the upper end of the first pressing block (904), the upper ends of the four guide pillars (905) penetrate through the protection box body (2) and are fixedly connected with a pressing plate (906) at the end part, fixing grooves (907) are formed in two sides of the upper end surface of the pressing plate (906), the fixing grooves (907) and the outer sides of the pressing plate (, the fixing seats (908) are fixedly connected to the upper end face of the protective box body (2) through screws, the fixing seats (908) are fixedly connected with fixing rods (909) through threads, the lower sides of the first pressing blocks (904) are respectively provided with a second pressing block (910), the sides, close to the second pressing blocks (910) and the first pressing blocks (904), of the second pressing blocks are respectively provided with an inclined face, the lower sides of the second pressing blocks (910) are respectively fixed with a second mounting block (911), the inner bottom face of the protective box (901) is provided with a second mounting groove, the second mounting blocks (911) are respectively connected into the second mounting grooves in a sliding mode, a second supporting spring (912) is respectively fixed between the second mounting block (911) and the side wall, close to the center of the protective box (901), of the second pressing block (910) is respectively fixed with a supporting column (913) through screws, the other end of each supporting column (913) is respectively fixed with a, arc grooves (915) are formed in one side, close to the center of the protection box (901), of the stabilizing block (914).

2. The protection device for the low-frequency vibration sensor according to claim 1, wherein the damping barrel (4) is provided with a plurality of limiting grooves which are uniformly distributed on the inner wall of the protection box body (2), the outer walls of the upper end and the lower end of the strut (5) close to the damping barrel (4) are respectively provided with a limiting groove, the upper end and the lower end of one side of the inner wall of the damping barrel (4) far away from the protection box body (2) are respectively fixed with a limiting block (7) through screws, and the limiting blocks (7) are respectively connected in the limiting grooves in a sliding manner.

3. The shielding device for the low-frequency vibration sensor of claim 1, wherein the sides of the second pressing block (910) and the first pressing block (904) close to each other are provided with inclined surfaces, and the inclined surfaces are inclined outwards from the central side of the shielding box body (2).

4. The device for protecting a low-frequency vibration sensor according to claim 1, wherein the upper end and the lower end of the protecting box (901) are fixed on the protecting box body (2) and the sealed heat-insulating vessel (3) through screws.

5. The protection device for the low frequency vibration sensor according to claim 1, wherein the first mounting groove and the second mounting groove are provided with four mounting grooves and are uniformly distributed on the inner wall and the bottom surface of the protection box (901).

6. A shielding device for a low frequency vibration sensor according to claim 1, wherein said fixing rod (909) is fitted to the fixing groove (907) in a shape-fitting manner.