CN210242922U - Protection device of ultrasonic liquid level meter - Google Patents

Abstract

The utility model discloses a protection device of an ultrasonic liquid level meter, which comprises a base, a connecting piece and a top cover; the bottom of the base is provided with a through hole, and the through hole is used for a detection end of the ultrasonic liquid level meter to pass through; the base comprises an upward extending insertion column, a mounting hole is formed in the insertion column, and an external thread is formed in the insertion column; the connecting piece comprises a light-transmitting cylinder; an internal thread matched with the external thread in a threaded manner is arranged in the light-transmitting cylinder; the upper end of printing opacity barrel still is provided with the mount pad, the top cap articulates on the mount pad, and still articulates on the top cap has the tongue of inserting, be provided with the locking mechanical system who is used for inserting the tongue locking on the printing opacity barrel. The utility model discloses can play the guard action to the ultrasonic wave level gauge and be used for reducing the phenomenon that the display screen is damaged by the collision, moreover, still conveniently in operating the button of display screen.

Description

Protection device of ultrasonic liquid level meter

Technical Field

The utility model relates to a protector of ultrasonic wave level gauge.

Background

Ultrasonic wave level gauge is often used for detecting the liquid level, and when using, because ultrasonic wave level gauge's display screen directly exposes in the external world, appears the phenomenon that ultrasonic wave level gauge's display screen was damaged by the collision easily. And in order to reduce the phenomenon that the display screen of ultrasonic wave level gauge is damaged by the collision, protector has appeared on the market, and this protector adopts the printing opacity barrel to locate outside the ultrasonic wave level gauge through this printing opacity barrel cover, but if need operate the button of display screen, often need dismantle with the help of a plurality of screw on the instrument with the protection device, lift protector off again, the button on the side can be operated the display screen, thereby cause great inconvenience.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a protection device of ultrasonic liquid level meter, it can play the protective action to ultrasonic liquid level meter in order to reduce the phenomenon that the display screen is damaged by the collision, moreover, through opening the top cap to downwards swivelling joint spare, alright make the display screen stretch out from the printing opacity barrel, can operate the button of display screen, thereby need not to dismantle protection device with the help of the instrument, convenient in the use.

The purpose of the utility model is realized by adopting the following technical scheme:

a protection device of an ultrasonic liquid level meter comprises a base, a connecting piece and a top cover; the bottom of the base is provided with a through hole, and the through hole is used for a detection end of the ultrasonic liquid level meter to pass through; the base comprises an upward extending insertion column, a mounting hole is formed in the insertion column, and an external thread is formed in the insertion column; the connecting piece comprises a light-transmitting cylinder; an internal thread matched with the external thread in a threaded manner is arranged in the light-transmitting cylinder; the upper end of printing opacity barrel still is provided with the mount pad, the top cap articulates on the mount pad, and still articulates on the top cap has the tongue of inserting, be provided with the locking mechanical system who is used for inserting the tongue locking on the printing opacity barrel.

The locking mechanism comprises a lock shell arranged on the light-transmitting cylinder body and a locking pin arranged on the lock shell; the lock is characterized in that an inserting cavity is formed in the lock shell, the inserting bolt is used for being inserted into the inserting cavity of the lock shell, an inserting hole is formed in the lock bolt, and the locking pin is used for being inserted into the inserting hole.

The locking mechanism further comprises an elastic element, the locking pin is movably inserted in the insertion cavity, and the elastic element is installed between the locking pin and the lock shell and used for providing elastic force for promoting the locking pin to move towards the insertion cavity.

The lock shell is also provided with an accommodating cavity, and the accommodating cavity is communicated with the plug-in mounting cavity; the locking pin is provided with a limiting sleeve positioned in the containing cavity, the elastic element is sleeved on the locking pin and abuts against the limiting sleeve and the wall of the containing cavity.

The elastic element is a spring.

The base comprises a circular disc with a circular cross section, and a plurality of screw holes which are circumferentially arranged around the central axis of the disc are arranged on the disc; the plug-in mounting columns are arranged on the disc.

The aperture of the through hole is smaller than that of the mounting hole.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model provides a protection device of ultrasonic liquid level meter, it can play the protective action to the ultrasonic liquid level meter in order to reduce the phenomenon that the display screen is damaged by the collision, moreover, through opening the top cap, and rotatory connecting piece downwards, can make the display screen stretch out from the printing opacity barrel, can operate the button of display screen, thus need not to dismantle the protection device with the help of the instrument, convenient to use; moreover, the structure is simpler, and the manufacturing cost can be reduced.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a cross-sectional view of the locking mechanism;

in the figure: 10. a base; 11. a through hole; 12. inserting a column; 14. an external thread; 15. a disc; 20. a connecting member; 21. a light-transmitting cylinder; 22. an internal thread; 23. a mounting seat; 30. a top cover; 31. inserting a tongue; 32. a bending seat; 40. a locking mechanism; 41. a lock case; 42. a locking pin; 43. an elastic element; 44. a limiting sleeve; 45. an accommodating chamber; 46. a cavity is inserted; 47. a cushion pad; 51. a bolt; 52. and a nut.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

As shown in fig. 1-3, a protector of an ultrasonic level gauge comprises a base 10, a connector 20, and a top cover 30; a through hole is formed in the bottom of the base 10 and is used for a detection end of the ultrasonic liquid level meter to pass through; the base 10 comprises an insertion column 12 extending upwards, a mounting hole is formed in the insertion column 12, and an external thread 14 is formed in the insertion column 12; the connecting piece 20 comprises a light-transmitting cylinder 21; an internal thread 22 in threaded fit with the external thread 14 is arranged in the light-transmitting cylinder 21; the upper end of the light-transmitting cylinder 21 is further provided with an installation seat 23, the top cover 30 is hinged to the installation seat 23, the top cover 30 is further hinged to an insertion tongue 31, and the light-transmitting cylinder 21 is provided with a locking mechanism 40 used for locking the insertion tongue 31.

When the protection device is used, the base 10 of the protection device is fixed on a container and covers the ultrasonic liquid level meter, the detection end of the ultrasonic liquid level meter penetrates through the through hole of the base 10, ultrasonic pulses can be sent out through the detection end of the ultrasonic liquid level meter, sound waves are received by the ultrasonic liquid level meter after being reflected by the surface of the liquid, the sound waves are converted into electric signals through a piezoelectric crystal or a magnetostrictive device, and the liquid level is calculated through the time between the emission and the reception of the sound waves. If the keys of the display screen need to be operated, the top cover 30 can be rotated and the top cover 30 is opened, then the connecting piece 20 is rotated in the forward direction, so that the transparent cylinder 21 moves downwards towards the base 10, at the moment, the display screen of the ultrasonic liquid level meter extends out of the transparent cylinder 21, and the keys of the display screen can be operated, so that the protective device does not need to be detached by means of a tool, and the use is convenient; after the operation of the display screen is finished, the connecting piece 20 can be rotated reversely, so that the light-transmitting cylinder 21 moves upwards, then the top cover 30 is rotated to cover the top cover 30 on the connecting piece 20, the locking bolt 31 is locked by the locking mechanism 40, and the top cover 30 can be fixed, therefore, the protection device can be used for protecting the ultrasonic liquid level meter, and the phenomenon that the display screen is damaged by collision is reduced.

Preferably, the locking mechanism 40 includes a lock case 41 disposed on the light-transmitting cylinder 21, a locking pin 42 mounted on the lock case 41; an insertion cavity 46 is formed in the lock case 41, the bolt 31 is inserted into the insertion cavity 46 of the lock case 41, an insertion hole is formed in the bolt 31, and the locking pin 42 is inserted into the insertion hole. When the top cover 30 is rotated to cover the connecting piece 20, the bolt 31 is inserted into the insertion cavity 46 of the lock case 41 and inserted into the insertion hole of the bolt 31 by the locking pin 42 to prevent the bolt 31 from being released, so that the bolt can be locked. The lock mechanism 40 is formed by combining the lock case 41 and the lock pin 42, which reduces the cost.

Preferably, the locking mechanism 40 further includes an elastic member 43, the locking pin 42 is movably inserted into the insertion cavity 46, and the elastic member 43 is installed between the locking pin 42 and the lock case 41 and is used for providing an elastic force for urging the locking pin 42 to move toward the insertion cavity 46. When the top cover 30 is rotated to cover the connecting part 20 and the bolt 31 is inserted into the insertion cavity 46 of the lock case 41, the locking pin 42 moves toward the insertion cavity 46 under the elastic force of the elastic element 43 and is inserted into the insertion hole of the bolt 31. The locking mechanism 40 is based on the lock case 41 and the locking pin 42, and is combined with the elastic element 43, so that the locking pin 42 can be kept inserted into the insertion hole of the insertion tongue 31 under the elastic force of the elastic element 43, and the working stability of the locking mechanism is ensured.

The lock shell 41 is further provided with an accommodating cavity 45, and the accommodating cavity 45 is communicated with the plug-in mounting cavity 46; the locking pin 42 is provided with a limiting sleeve 44 positioned in the accommodating cavity 45, the elastic element 43 is sleeved on the locking pin 42, and the elastic element 43 is abutted between the limiting sleeve 44 and the cavity wall of the accommodating cavity 45, so that the installation is convenient. Specifically, a communication hole is formed in the lock case 41, and the accommodating cavity 45 is communicated with the insertion cavity 46 through the communication hole; the locking pin 42 is arranged in the communication hole in a penetrating way.

Preferably, the locking pin 42 is provided with a threaded section and a shaft shoulder, the limiting sleeve 44 is connected to the threaded section in a threaded manner and abuts against the shaft shoulder, and by adopting the structure, the limiting sleeve 44 can be conveniently disassembled and assembled.

The locking pin 42 is provided with a handle part, one side of the accommodating cavity 45 far away from the insertion cavity 46 penetrates through the outer surface of the lock shell 41, and an opening for the handle part to extend out is formed, so that when the inserting tongue 31 needs to be removed from the insertion cavity 46, the handle part can be pulled outwards, the locking pin 42 is enabled to be separated from the insertion hole of the inserting tongue 31, and therefore, the inserting tongue 31 can be removed from the insertion cavity 46 through upward rotation of the top cover 30, and the top cover 30 can be opened.

Preferably, a buffer pad 47 against which the locking pin 42 abuts is disposed on a side of the insertion cavity 46 away from the accommodating cavity 45, so that when the locking pin 42 is reset under the elastic force of the elastic element 43, damage caused by impact collision between the locking pin 42 and the lock housing 41 can be reduced through the buffer action of the buffer pad 47, and the service life can be effectively prolonged.

The elastic member 43 is a spring.

The top cover 30 is provided with a bending seat 32, the bending seat 32 is hinged on the mounting seat 23 through a pivot, the mounting seat 23 is provided with a first through hole, the bending seat 32 is provided with a second through hole, the pivot is a bolt 51, the bolt 51 penetrates through the first through hole of the mounting seat 23 and the second through hole of the bending seat 32, and a nut 52 is connected with the bolt through threads. By adopting the above structure, the top cover 30 can be conveniently disassembled and assembled.

Preferably, the base 10 includes a circular disc 15 having a circular cross section, and the circular disc 15 is provided with a plurality of screw holes circumferentially arranged around a central axis thereof; the posts 12 are arranged on the disc 15 so that they can be screwed into threaded holes in order to fix the disc 15 to the container. The aperture of the through hole is smaller than that of the mounting hole.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims (7)

1. The utility model provides a protector of ultrasonic wave level gauge which characterized in that: comprises a base, a connecting piece and a top cover; the bottom of the base is provided with a through hole, and the through hole is used for a detection end of the ultrasonic liquid level meter to pass through; the base comprises an upward extending insertion column, a mounting hole is formed in the insertion column, and an external thread is formed in the insertion column; the connecting piece comprises a light-transmitting cylinder; an internal thread matched with the external thread in a threaded manner is arranged in the light-transmitting cylinder; the upper end of printing opacity barrel still is provided with the mount pad, the top cap articulates on the mount pad, and still articulates on the top cap has the tongue of inserting, be provided with the locking mechanical system who is used for inserting the tongue locking on the printing opacity barrel.

2. A guard for an ultrasonic level gauge as claimed in claim 1, wherein: the locking mechanism comprises a lock shell arranged on the light-transmitting cylinder body and a locking pin arranged on the lock shell; the lock is characterized in that an inserting cavity is formed in the lock shell, the inserting bolt is used for being inserted into the inserting cavity of the lock shell, an inserting hole is formed in the lock bolt, and the locking pin is used for being inserted into the inserting hole.

3. A guard for an ultrasonic level gauge as claimed in claim 2, wherein: the locking mechanism further comprises an elastic element, the locking pin is movably inserted in the insertion cavity, and the elastic element is installed between the locking pin and the lock shell and used for providing elastic force for promoting the locking pin to move towards the insertion cavity.

4. A guard for an ultrasonic level gauge as claimed in claim 3, wherein: the lock shell is also provided with an accommodating cavity, and the accommodating cavity is communicated with the plug-in mounting cavity; the locking pin is provided with a limiting sleeve positioned in the containing cavity, the elastic element is sleeved on the locking pin and abuts against the limiting sleeve and the wall of the containing cavity.

5. A guard for an ultrasonic level gauge as claimed in claim 3 or 4, wherein: the elastic element is a spring.

6. A guard for an ultrasonic level gauge as claimed in claim 1, wherein: the base comprises a circular disc with a circular cross section, and a plurality of screw holes which are circumferentially arranged around the central axis of the disc are arranged on the disc; the plug-in mounting columns are arranged on the disc.

7. A guard for an ultrasonic level gauge as claimed in claim 1, wherein: the aperture of the through hole is smaller than that of the mounting hole.

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