CN219961056U - Protective cover of liquid level sensor - Google Patents

Abstract

The utility model discloses a protective cover of a liquid level sensor, which comprises a base, wherein the upper end of the base is provided with a sensor body, the lower end of the sensor body is connected with a connecting column, the lower end of the connecting column penetrates through the base, the lower end of the connecting column is connected with a probe, the upper end of the base is attached with a housing, the housing is sleeved outside the sensor body, the front surface of the housing is provided with transparent glass, and the outer side of the upper end of the base is provided with a fixing frame; the cover shell is connected with the fixing frame through the positioning mechanism, and the cover shell is limited through the supporting blocks, so that the effect of stabilizing the position of the cover shell can be achieved, the cover shell can play a role in protecting the sensor body, meanwhile, the transparent glass can avoid influencing the liquid level detection value of the sensor body, the impact of foreign objects on the probe can be effectively avoided through the net frame, meanwhile, the influence on the contact of liquid and the probe can be avoided, and the use effect of the sensor body is guaranteed.

Description

Protective cover of liquid level sensor

Technical Field

The utility model relates to the field of liquid level sensors, in particular to a protective cover of a liquid level sensor.

Background

The liquid level sensor is a pressure sensor for measuring liquid level, the static pressure input type liquid level transmitter is based on the principle that the measured liquid static pressure is proportional to the height of the liquid, an isolated diffusion silicon sensitive element or a ceramic capacitance pressure sensitive sensor is adopted to convert the static pressure into an electric signal, and the electric signal is converted into a standard electric signal through temperature compensation and linear correction, so that the liquid level sensor is suitable for liquid level measurement of various media of petrochemical industry, metallurgy, electric power, pharmacy, water supply and drainage, environmental protection and other systems and industries.

At present, operating personnel often need use level sensor when detecting the water level to be convenient for operating personnel's detection, for example, application number CN 202122702515.4's a level sensor that possesses good shock resistance, through setting up the dead lever, the fly leaf, flexible spring one and movable block, because the cooperation between dead lever and the fly leaf, will make the level sensor body when receiving the impact, make it get into the inside of notch, and then because flexible spring one's elasticity effect, will reset the fly leaf, when the bottom of level sensor body receives the impact simultaneously, will make the cooperation between movable block and the flexible spring two, make it slow down the impact, thereby make the level sensor body have good shock resistance.

However, the protection structure of the patent wraps the liquid level sensor probe in the protection sleeve completely, so that the contact between the liquid level sensor probe and liquid is influenced, the probe cannot accurately detect the liquid level, and the detection precision of the liquid level sensor is seriously influenced.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems existing in the prior art, the utility model aims to provide the protective cover of the liquid level sensor, which is characterized in that a cover shell is connected with a fixed frame through a positioning mechanism, and the cover shell is limited through a supporting block, so that the effect of stabilizing the position of the cover shell can be achieved, the cover shell can protect a sensor body, meanwhile, the transparent glass can avoid influencing the value of checking the sensor body, the impact of foreign matters on a probe can be effectively avoided through the net frame, and meanwhile, the influence on the contact of liquid and the probe can be avoided, so that the use effect of the sensor body is ensured.

2. Technical proposal

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides a liquid level sensor's safety cover, includes the base, the sensor body is installed to the upper end of base, the lower extreme of sensor body is connected with the spliced pole, the lower extreme of spliced pole runs through the base, the lower extreme of spliced pole is connected with the probe, the upper end laminating of base has the housing, the housing cup joints in the outside of sensor body, transparent glass is installed in the front of housing, the mount is installed in the upper end outside of base, the inner wall of mount is provided with positioning mechanism, positioning mechanism and housing joint, the extension board is installed to the outer wall of spliced pole, the outside of spliced pole is through extension board sliding connection has the link, the lower extreme of link is connected with the rack, the rack cup joints the outside at the probe.

Further, positioning mechanism includes bar groove, first spring, draw-in lever, draw-in groove and control assembly, the inner wall at the mount is seted up in the bar groove, first spring is installed in the inside in bar groove, the one end at first spring is connected to the draw-in lever, the outer wall of draw-in lever is provided with spacing subassembly, the one end of draw-in lever runs through the bar groove, the lower extreme at the housing lateral wall is seted up to the draw-in groove, the inside at the draw-in groove is pegged graft to the one end of draw-in lever, control assembly sets up the outer wall at the mount, control assembly is connected with the draw-in lever transmission.

Further, the limiting component comprises a limiting block and a limiting groove, the limiting block is arranged on the outer wall of the clamping rod, the limiting groove is formed in the inner wall of the rod groove, and the limiting block is slidably connected in the limiting groove.

Further, the control assembly comprises a through groove and a pull rod, the through groove is formed in the outer wall of the fixing frame and is communicated with the rod groove, the pull rod is slidably connected in the through groove, one end of the pull rod extends into the rod groove, one end of the pull rod penetrates through the first spring, the outer wall of the pull rod is slidably connected with the inner wall of the first spring, and one end of the pull rod is connected with the clamping rod.

Further, a supporting block is mounted on the inner side of the upper end of the base, and the supporting block is attached to the lower end of the inner wall of the housing.

Further, the upper end and the lower end of the inner wall of the connecting frame are respectively provided with a second spring, and one end of the second spring is respectively attached to the upper end and the lower end of the support plate.

Further, the locating lever is installed to the inside upper end of link, the locating lever is pegged graft in the inside of second spring, the outer wall of locating lever and the inner wall sliding connection of second spring, the extension board is run through to the lower extreme of locating lever, the outer wall and the extension board sliding connection of locating lever, the lower extreme of locating lever is connected with the inside lower extreme of link.

Furthermore, a buffer pad is arranged at the lower end of the net rack, and the buffer pad is made of an anti-corrosion material.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that:

(1) This scheme is connected the housing with the mount through positioning mechanism, and carries out spacingly to the housing through the piece, can reach the effect of firm housing position, makes the housing accessible play guard action to the sensor body, and accessible transparent glass avoids influencing simultaneously and looks over the liquid level detection numerical value of sensor body, and can effectively avoid the impact that the foreign object produced the probe through the rack, can avoid influencing liquid and probe contact simultaneously to guarantee the result of use of sensor body.

(2) When the housing is adopted to protect the sensor body, the housing is arranged between the fixing frame and the supporting block, and the housing is pressed downwards, so that the housing can enable the clamping rod to enter the inside of the rod groove, after the clamping groove moves to the position of the clamping rod, the clamping rod is driven to reset through the spring, and the position of the clamping rod is stabilized through the limiting assembly, so that the housing can be stabilized through the positioning mechanism, and the falling of the housing is avoided, and the protection effect on the sensor body is influenced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an exploded view of the present utility model;

FIG. 3 is a schematic view of a positioning mechanism according to the present utility model;

FIG. 4 is a cross-sectional view of the present utility model;

fig. 5 is a schematic view of a structure of a connecting frame according to the present utility model.

The reference numerals in the figures illustrate:

1. base, 2, sensor body, 21, spliced pole, 211, extension board, 22, probe, 3, housing, 31, transparent glass, 4, mount, 5, positioning mechanism, 51, pole groove, 52, first spring, 53, clamping lever, 54, clamping groove, 55, spacing subassembly, 551, stopper, 552, spacing groove, 56, control unit, 561, logical groove, 562, pull rod, 6, prop, 7, link, 71, second spring, 72, positioning lever, 73, rack, 74, blotter.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples:

referring to fig. 1-5, a protective cover of a liquid level sensor comprises a base 1, wherein a sensor body 2 is installed at the upper end of the base 1, a connecting column 21 is connected to the lower end of the sensor body 2, the lower end of the connecting column 21 penetrates through the base 1, a probe 22 is connected to the lower end of the connecting column 21, a housing 3 is attached to the upper end of the base 1, the housing 3 is sleeved outside the sensor body 2, transparent glass 31 is installed on the front surface of the housing 3, a fixing frame 4 is installed on the outer side of the upper end of the base 1, a positioning mechanism 5 is arranged on the inner wall of the fixing frame 4, the positioning mechanism 5 is clamped with the housing 3, a support 211 is installed on the outer wall of the connecting column 21, a connecting frame 7 is connected to the outer side of the connecting column 21 through the support 211 in a sliding manner, a net rack 73 is connected to the lower end of the connecting frame 7, and the net rack 73 is sleeved outside the probe 22;

the cover 3 is connected with the fixing frame 4 through the positioning mechanism 5, so that the effect of stabilizing the position of the cover 3 can be achieved, the cover 3 is attached to the upper end of the base 1 and sleeved on the outer portion of the sensor body 2, the cover 3 can protect the sensor body 2, meanwhile, the transparent glass 31 can avoid influencing to view the liquid level detection value of the sensor body 2, the impact of foreign matters on the probe 22 can be effectively avoided through the net rack 73, the net rack 73 is prevented from colliding with the probe 22, and meanwhile, the contact of liquid and the probe 22 can be prevented from being influenced.

Referring to fig. 2 and 3, the positioning mechanism 5 includes a rod groove 51, a first spring 52, a clamping rod 53, a clamping groove 54 and a control component 56, wherein the rod groove 51 is formed in the inner wall of the fixing frame 4, the first spring 52 is installed in the rod groove 51, the clamping rod 53 is connected to one end of the first spring 52, a limiting component 55 is arranged on the outer wall of the clamping rod 53, one end of the clamping rod 53 penetrates through the rod groove 51, the clamping groove 54 is formed in the lower end of the side wall of the housing 3, one end of the clamping rod 53 is inserted into the clamping groove 54, the control component 56 is arranged on the outer wall of the fixing frame 4, and the control component 56 is in transmission connection with the clamping rod 53;

when the housing 3 is sleeved outside the sensor body 2, the housing 3 is pressed downwards, so that the housing 3 extrudes the clamping rod 53 into the rod groove 51, after the clamping groove 54 moves to the position of the clamping rod 53, the clamping rod 53 is driven to reset through a spring, and the position of the clamping rod 53 is stabilized through the limiting component 55, so that one end of the clamping rod 53 can be inserted into the clamping groove 54, the positioning mechanism 5 can achieve the effect of stabilizing the position of the housing 3, and the clamping rod 53 can be separated from the clamping groove 54 through the control component 56 so as to be used when the housing 3 is removed.

Referring to fig. 3, the limiting component 55 includes a limiting block 551 and a limiting groove 552, the limiting block 551 is mounted on the outer wall of the clamping rod 53, the limiting groove 552 is formed on the inner wall of the rod groove 51, and the limiting block 551 is slidably connected inside the limiting groove 552;

the limiting block 551 is slidably connected in the limiting groove 552, so that the position of the clamping rod 53 in the rod groove 51 can be stabilized by the limiting component 55, and the situation that the clamping rod 53 inclines, deflects and the like to influence the position of the housing 3 is avoided.

Referring to fig. 3, the control assembly 56 includes a through slot 561 and a pull rod 562, the through slot 561 is formed on an outer wall of the fixing frame 4, the through slot 561 is communicated with the rod slot 51, the pull rod 562 is slidably connected inside the through slot 561, one end of the pull rod 562 extends into the rod slot 51, one end of the pull rod 562 penetrates through the first spring 52, the outer wall of the pull rod 562 is slidably connected with an inner wall of the first spring 52, and one end of the pull rod 562 is connected with the clamping rod 53;

by pulling the pull rod 562 to slide in the through groove 561, the pull rod 562 can drive the clamping rod 53 to move simultaneously, so that the clamping rod 53 can enter the rod groove 51, and the control assembly 56 can separate the clamping rod 53 from the clamping groove 54, so that the positioning mechanism 5 can not stabilize the position of the housing 3 any more, and the housing 3 can be removed.

Referring to fig. 2, a supporting block 6 is mounted on the inner side of the upper end of the base 1, and the supporting block 6 is attached to the lower end of the inner wall of the housing 3;

the supporting block 6 is arranged on the inner side of the upper end of the base 1, and the supporting block 6 is attached to the lower end of the inner wall of the housing 3, so that the supporting block 6 is matched with the fixing frame 4 and the positioning mechanism 5 to stabilize the position of the housing 3, and the position of the housing 3 is prevented from being deviated.

Referring to fig. 5, the upper and lower ends of the inner wall of the connecting frame 7 are respectively provided with a second spring 71, and one end of the second spring 71 is respectively attached to the upper and lower ends of the supporting plate 211;

by placing the second spring 71 between the support plate 211 and the connection frame 7, the connection frame 7 can be buffered by the spring, so as to avoid collision between the net frame 73 and the probe 22.

Referring to fig. 5, a positioning rod 72 is mounted at the upper end of the inside of the connecting frame 7, the positioning rod 72 is inserted into the inside of the second spring 71, the outer wall of the positioning rod 72 is slidably connected with the inner wall of the second spring 71, the lower end of the positioning rod 72 penetrates through the support plate 211, the outer wall of the positioning rod 72 is slidably connected with the support plate 211, and the lower end of the positioning rod 72 is connected with the lower end of the inside of the connecting frame 7;

through the internally mounted locating lever 72 at link 7 to make the outer wall and extension board 211, second spring 71 sliding connection of locating lever 72, can play the effect of firm second spring 71 and link 7 position through locating lever 72, avoid the position of second spring 71 to take place the skew and influence normal use, and avoid the position of rack 73 to take place the skew and influence the protective effect.

Referring to fig. 5, a buffer pad 74 is installed at the lower end of the net frame 73, and the buffer pad 74 is made of an anti-corrosion material;

the buffer pad 74 is arranged at the lower end of the net rack 73 to reduce the impact of external force on the bottom of the net rack 73, thereby ensuring the service life of the net rack 73.

According to the utility model, the housing 3 is arranged between the fixing frame 4 and the supporting block 6, the housing 3 is pushed downwards, so that the housing 3 is sleeved outside the sensor body 2, when the housing 3 is contacted with the clamping rod 53, the clamping rod 53 can be extruded into the rod groove 51, after the clamping groove 54 moves to the position of the clamping rod 53, the clamping rod 53 is driven to reset through the first spring 52, and is connected in the limiting groove 552 in a sliding manner through the limiting block 551, so that the limiting component 55 stabilizes the position of the clamping rod 53, namely, one end of the clamping rod 53 can be inserted into the clamping groove 54, so that the positioning mechanism 5 can stabilize the position of the housing 3, the bottom of the housing 3 is attached to the base 1, so that the housing 3 can protect the sensor body 2, the liquid level detection value of the sensor body 2 can be prevented from being influenced through the transparent glass 31, and when the housing 3 needs to be removed, pulling the pull rod 562 to slide in the through groove 561 can make the pull rod 562 drive the clamping rod 53 to move simultaneously, so that the clamping rod 53 enters the inside of the rod groove 51, thereby making the control component 56 achieve the effect of separating the clamping rod 53 from the clamping groove 54, making the positioning mechanism 5 no longer stabilize the position of the housing 3, so as to take down the housing 3, and the probe 22 can be protected by the grid 73, so as to avoid impact and the like on the probe 22, and meanwhile, the probe 22 is prevented from being influenced by liquid contact, so as to ensure the use effect of the sensor body 2, and when the grid 73 is impacted, the cushion 74 can reduce the impact of external force on the bottom of the grid 73, and the support plate 211 stabilizes the positions of the second spring 71 and the connecting frame 7 by the positioning rod 72, so that the connecting frame 7 slides on the outer wall of the connecting column 21, not only can buffer the impact force, but also to avoid collision of the grid 73 with the body of the probe 22.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims (8)

1. A protective cover for a liquid level sensor, characterized in that: the sensor comprises a base, the sensor body is installed to the upper end of base, the lower extreme of sensor body is connected with the spliced pole, the lower extreme of spliced pole runs through the base, the lower extreme of spliced pole is connected with the probe, the upper end laminating of base has the housing, the housing cup joints in the outside of sensor body, transparent glass is installed in the front of housing, the mount is installed in the upper end outside of base, the inner wall of mount is provided with positioning mechanism, positioning mechanism and housing joint, the extension board is installed to the outer wall of spliced pole, the outside of spliced pole has the link through extension board sliding connection, the lower extreme of link is connected with the rack, the rack cup joints in the outside of probe.

2. A protective cover for a liquid level sensor as claimed in claim 1, wherein: the positioning mechanism comprises a rod groove, a first spring, a clamping rod, a clamping groove and a control assembly, wherein the rod groove is formed in the inner wall of the fixing frame, the first spring is installed in the rod groove, the clamping rod is connected to one end of the first spring, the outer wall of the clamping rod is provided with a limiting assembly, one end of the clamping rod penetrates through the rod groove, the clamping groove is formed in the lower end of the side wall of the housing, one end of the clamping rod is inserted into the clamping groove, the control assembly is arranged on the outer wall of the fixing frame, and the control assembly is in transmission connection with the clamping rod.

3. A protective cover for a liquid level sensor as claimed in claim 2, wherein: the limiting assembly comprises a limiting block and a limiting groove, wherein the limiting block is arranged on the outer wall of the clamping rod, the limiting groove is formed in the inner wall of the rod groove, and the limiting block is slidably connected in the limiting groove.

4. A protective cover for a liquid level sensor as claimed in claim 2, wherein: the control assembly comprises a through groove and a pull rod, wherein the through groove is formed in the outer wall of the fixing frame and is communicated with the rod groove, the pull rod is slidably connected in the through groove, one end of the pull rod extends into the rod groove, one end of the pull rod penetrates through the first spring, the outer wall of the pull rod is slidably connected with the inner wall of the first spring, and one end of the pull rod is connected with the clamping rod.

5. A protective cover for a liquid level sensor as claimed in claim 1, wherein: the inner side of the upper end of the base is provided with a supporting block, and the supporting block is attached to the lower end of the inner wall of the housing.

6. A protective cover for a liquid level sensor as claimed in claim 1, wherein: the upper and lower both ends of link inner wall are all installed the second spring, the one end of second spring is laminated with upper and lower both ends of extension board respectively.

7. The protective cover for a liquid level sensor of claim 6, wherein: the locating rod is installed to the inside upper end of link, the locating rod is pegged graft in the inside of second spring, the outer wall of locating rod and the inner wall sliding connection of second spring, the extension board is run through to the lower extreme of locating rod, the outer wall and the extension board sliding connection of locating rod, the lower extreme of locating rod is connected with the inside lower extreme of link.

8. A protective cover for a liquid level sensor as claimed in claim 1, wherein: the lower extreme of rack installs the blotter, the blotter adopts anticorrosive material to make.