阅读说明：本技术 一种便于维修的预埋式液位检测仪及预埋方法 (Embedded liquid level detector convenient to maintain and embedding method ) 是由 周俊 王茂祥 史潇 孙明 吴坤 于 2021-03-23 设计创作，主要内容包括：发明涉及城市内涝路面积水检测的技术领域,尤其涉及一种便于维修的预埋式液位检测仪及预埋方法,其中一种便于维修的预埋式液位检测仪,包括盖体的上端面中部开设有一转动槽,转动槽内安装有导向块,导向块的上端具有一倾斜设置的导向面,转动槽内转动设置有一转动盘,转动盘的底部开设有一与导向块适配的导向槽,以及所述转动盘与转动槽通过升降转动部连接；在导向面与导向槽贴合转动的作用下,导向块能够将转动盘顶起并部分凸出转动槽形成把手,通过人工抓紧转动盘后将转动盘向外拔,使得整个盖体跟随转动盘向外拔出,从而实现液位检测仪的拆卸,这样的方式操作简单,且重复利用率高。(The invention relates to the technical field of urban waterlogging road surface accumulated water detection, in particular to a pre-buried liquid level detector convenient to maintain and a pre-buried method, wherein the pre-buried liquid level detector convenient to maintain comprises a cover body, wherein the middle part of the upper end surface of the cover body is provided with a rotating groove, a guide block is installed in the rotating groove, the upper end of the guide block is provided with an obliquely arranged guide surface, a rotating disc is rotatably arranged in the rotating groove, the bottom of the rotating disc is provided with a guide groove matched with the guide block, and the rotating disc is connected with the rotating groove through a lifting rotating part; under spigot surface and guide way laminating pivoted effect, the guide block can form the handle with rolling disc jack-up and partial protrusion rolling slot, and outwards pull out the rolling disc behind the firmly grasping rolling disc through the manual work for whole lid is followed the rolling disc and is outwards pulled out, thereby realizes liquid level detector's dismantlement, such mode easy operation, and reuse rate is high.)

1. The utility model provides a pre-buried formula liquid level detection appearance convenient to maintenance which characterized in that includes:

the liquid level sensor comprises a cover body, a liquid level sensor and a rotating disc, wherein the cover body is suitable for mounting the liquid level sensor, a rotating groove is formed in the middle of the upper end face of the cover body, a guide block is mounted in the rotating groove, an obliquely arranged guide surface is arranged at the upper end of the guide block, a rotating disc is rotatably arranged in the rotating groove, a guide groove matched with the guide block is formed in the bottom of the rotating disc, and the rotating disc is connected with the rotating groove through a lifting rotating part;

the top of the outer shell is provided with an installation groove suitable for installing a cover body, and the bottom of the outer shell is provided with a water storage groove;

the inner sleeve is connected to the inner side wall of the outer shell in a sliding mode, a circuit board is installed on the inner side wall of the inner sleeve, the bottom of the inner sleeve is sealed, a step is integrally arranged on the inner side wall of the inner sleeve, an insulating plate is installed on the step, the step is suitable for containing a power supply, and the power supply, the circuit board and the liquid level sensor are electrically connected; wherein

After the rotating disc is rotated, the rotating disc can protrude out of the rotating groove to form the handrail.

2. The pre-buried liquid level detecting instrument convenient for maintenance as claimed in claim 1,

two opening grooves are formed in the rotating disc in a penetrating mode, the rotating disc is cut to form two opening blocks, and the guide grooves are formed in the bottoms of the opening blocks; wherein

After the rotating disc is rotated, the guide block can push the opening block to protrude out of the rotating groove.

3. The pre-buried liquid level detecting instrument convenient for maintenance as claimed in claim 2,

the outer side wall of the opening block is provided with a handrail groove.

4. The pre-buried liquid level detecting instrument convenient for maintenance as claimed in claim 3,

the lifting rotating part comprises a lifting column fixed at the bottom of the rotating groove, a lifting limiting plate integrally arranged at the end part of the lifting column, a lifting sleeve fixedly connected to the bottom of the rotating disc, a rotating limiting plate integrally arranged on the inner side wall of the end part of the lifting sleeve, and a lifting torsion spring of which two ends are respectively and fixedly connected with the lifting limiting plate and the rotating limiting plate;

the lifting column is suitable for being inserted into the lifting sleeve; wherein

The rotating disc can slide along the lifting column so that the handrail groove protrudes out of the rotating groove.

5. The pre-buried liquid level detecting instrument convenient for maintenance as claimed in claim 4,

the pre-buried liquid level detector further comprises:

the ejector rod is rotatably connected to the bottom of the inner sleeve and can extend out of the bottom end face of the outer shell, the sum of the lengths of the ejector rod and the inner sleeve is equal to the distance between the bottom of the mounting groove and the bottom of the outer shell, and a soil grabbing part is arranged at one end, protruding out of the outer shell, of the ejector rod;

the baffle is rotatably connected with the outer shell and positioned at the opening of the water storage tank, the baffle is penetrated through by the ejector rod and in threaded connection with the ejector rod, a plurality of bulldozing parts are arranged on the bottom end surface of the baffle, and the bulldozing parts are uniformly distributed in the circumferential direction; wherein

Pressing the outer shell to the earth ground to enable the ejector rod to push the upper end face of the inner sleeve to slide to be flush with the groove bottom of the mounting groove, and enabling the ejector rod to rotate in the forward direction to drive each soil pushing part to push away earth through the baffle;

after the cover body is installed, the inner sleeve is pressed, and the ejector rod rotates reversely to drive each soil grabbing part to grab the ground.

6. The pre-buried liquid level detecting instrument convenient for maintenance as claimed in claim 5,

the bulldozing part comprises a convex edge fixed on the end surface of the baffle and a bulldozing knife fixed on the side wall of the convex edge, the convex edge is arc-shaped, the bulldozing knife is positioned on the outer side of the convex edge, the longitudinal section area of the bulldozing knife is gradually reduced from one end close to the baffle to the other end far away from the baffle, and

the inner side of the convex edge is provided with a slope, wherein

When the ejector rod is linked with the baffle to rotate forwards, the bulldozer can push away soil and sequentially pass through the convex arris and the slope.

7. The pre-buried liquid level detecting instrument convenient for maintenance as claimed in claim 6,

the soil grabbing part comprises a plurality of grabbing rods fixed at one end of the outer shell body and protruding from the ejector rod, the grabbing rods are evenly distributed in the circumferential direction and are umbrella-shaped, and

the end part of the grabbing rod is fixedly connected with a downward inclined claw which extends towards the inner side of the convex edge; wherein

The ejector rod rotates reversely to drive each clamping jaw to be inserted into the earth ground.

8. The pre-buried liquid level detecting instrument convenient for maintenance as claimed in claim 7,

the bottom wall of the mounting groove is provided with an annular sealing groove, a sealing ring is arranged in the sealing groove,

the sealing ring can protrude out of the upper end surface of the inner sleeve;

the diapire fixedly connected with of lid presses the clamping ring, press the clamping ring be located with on the corresponding position of seal groove, wherein

And during the installation of the cover body, the pressing ring can guide and bend the sealing ring towards the inner sleeve.

9. The pre-buried liquid level detecting instrument convenient for maintenance as claimed in claim 8,

the bottom of the mounting groove is also provided with an annular overflow groove, a plurality of cooling grooves are arranged in the overflow groove, the cooling grooves are communicated with the water storage groove and are spirally arranged, wherein

Accumulated water seeping into the overflow groove from the position between the cover body and the mounting groove can be spirally flushed out of the cooling groove into the water storage groove;

a lifting floating block is arranged in the water storage tank;

a plurality of drain holes are arranged through the baffle plate and the convex edge, the drain holes are provided with plugs, and the plugs are respectively fixed at the bottoms of the floating blocks, wherein

After the accumulated water flows into the water storage tank, the floating block can drive each plug to be separated from the drain hole.

10. A pre-burying method of a pre-buried liquid level detector convenient for maintenance, which is characterized by comprising the pre-buried liquid level detector convenient for maintenance as claimed in claim 9,

digging a soil ground to form a soil pit, and stacking a soil pile in the middle of the bottom of the pit;

placing the outer shell in the soil pit, and enabling the ejector rod to be in contact with the top of the soil pile;

pressing the outer shell to enable the ejector rod to push the inner sleeve upwards to be flush with the inner bottom wall of the mounting groove;

the baffle plate rotates to drive each soil pushing part to push away soil;

the cover body is arranged in the mounting groove, and the cover body presses the inner sleeve to enable the ejector rod to protrude out of the inner bottom wall of the outer shell;

the ejector rod rotates reversely to drive each soil grabbing part to tightly grab the ground.

Technical Field

The invention relates to the technical field of urban waterlogging road surface water detection, in particular to a pre-buried liquid level detector convenient to maintain and a pre-buried method.

Background

Urban waterlogging refers to a phenomenon that a strong rainfall or continuous rainfall exceeds urban drainage capacity to cause a water accumulation disaster in a city, and the reason for causing the waterlogging is that the rainfall intensity is large, the range is concentrated, meanwhile, drainage is not timely due to blockage of a sewer pipeline, so that the accumulated water is possibly formed in places with special emergency rainfall, the rainfall intensity is large, the accumulated water is possibly formed in a long time, some urban drainage pipelines in China are aged, the drainage standard is low, some local drainage facilities are not perfect and imperfect, the construction delay of a drainage system is an important reason for causing the waterlogging, in addition, a large amount of hard pavement in the city, such as a asphalt road and a cement road surface, the water permeability is poor during rainfall, the seeping is not easy to occur, the accumulated water in the road surface is easy to form, municipal administration personnel arrive at a designated position to visually observe, and judge whether the possibility of the accumulated water exists, go to clear up in the front for when rainstorm season, municipal personnel's intensity of labour is too big, and probably clear up untimely, influences the traffic, influences people's life safety even.

In order to solve the problems, a pre-embedded liquid level detector capable of detecting the depth of accumulated water needs to be designed. The embedded liquid level detector detects the depth of surface accumulated water through an ultrasonic interface of the accumulated water detector, and reports to a cloud server through communication modes such as a built-in GPRS/4G/NB-IoT and the like, so that data support is provided for commanding and decision making of industry users, and urban hydrological detection capability is improved. Meanwhile, the system can be transmitted to a nearby detection host machine in an LoRa communication mode to carry out on-site early warning indication.

However, when the liquid level detector needs to be disassembled for maintenance, the cover body is only required to be disassembled for maintenance, but the cover body is generally installed to be flush with the top end surface of the liquid level detector, so that the cover body needs to be tilted by means of a tool when the cover body is disassembled, the liquid level detector can be disassembled after the cover body is uncovered, and the operation of the mode is complex.

Disclosure of Invention

The invention aims to provide a pre-embedded liquid level detector convenient to maintain.

In order to solve the technical problem, the invention provides a pre-embedded liquid level detector convenient to maintain, which comprises: the liquid level sensor comprises a cover body, a liquid level sensor and a rotating disc, wherein the cover body is suitable for mounting the liquid level sensor, a rotating groove is formed in the middle of the upper end face of the cover body, a guide block is mounted in the rotating groove, an obliquely arranged guide surface is arranged at the upper end of the guide block, a rotating disc is rotatably arranged in the rotating groove, a guide groove matched with the guide block is formed in the bottom of the rotating disc, and the rotating disc is connected with the rotating groove through a lifting rotating part; the top of the outer shell is provided with an installation groove suitable for installing a cover body, and the bottom of the outer shell is provided with a water storage groove; the inner sleeve is connected to the inner side wall of the outer shell in a sliding mode, a circuit board is installed on the inner side wall of the inner sleeve, the bottom of the inner sleeve is sealed, a step is integrally arranged on the inner side wall of the inner sleeve, an insulating plate is installed on the step, the step is suitable for containing a power supply, and the power supply, the circuit board and the liquid level sensor are electrically connected; wherein upon rotation of the rotatable disk, the rotatable disk can protrude out of the rotatable slot to form a handrail.

Furthermore, a support groove penetrates through the rotating disc, the rotating disc is cut to form a support block, and the guide groove is formed in the bottom of the support block; after the rotating disc is rotated, the guide block can push the opening block to protrude out of the rotating groove.

Furthermore, the outer side wall of the opening block is provided with a handrail groove.

Furthermore, the lifting rotating part comprises a lifting column fixed at the bottom of the rotating groove, a lifting limiting plate integrally arranged at the end part of the lifting column, a lifting sleeve fixedly connected to the bottom of the rotating disc, a rotating limiting plate integrally arranged on the inner side wall of the end part of the lifting sleeve, and a lifting torsion spring of which two ends are respectively and fixedly connected with the lifting limiting plate and the rotating limiting plate; the lifting column is suitable for being inserted into the lifting sleeve; wherein the rotating disc can slide along the lifting column to enable the handrail groove to protrude out of the rotating groove.

Further, the pre-buried liquid level detector further comprises: the ejector rod is rotatably connected to the bottom of the inner sleeve and can extend out of the bottom end face of the outer shell, the sum of the lengths of the ejector rod and the inner sleeve is equal to the distance between the bottom of the mounting groove and the bottom of the outer shell, and a soil grabbing part is arranged at one end, protruding out of the outer shell, of the ejector rod; the baffle is rotatably connected with the outer shell and positioned at the opening of the water storage tank, the baffle is penetrated through by the ejector rod and in threaded connection with the ejector rod, a plurality of bulldozing parts are arranged on the bottom end surface of the baffle, and the bulldozing parts are uniformly distributed in the circumferential direction; the outer shell is pressed towards the earth ground so that the ejector rod pushes the upper end face of the inner sleeve to slide to be flush with the groove bottom of the mounting groove, and the ejector rod rotates in the forward direction to drive each soil pushing part to push away earth through the baffle; after the cover body is installed, the inner sleeve is pressed, and the ejector rod rotates reversely to drive each soil grabbing part to grab the ground.

Further, bulldozing portion is including fixing the protruding stupefied of baffle terminal surface with fix the bull-dozing sword of protruding stupefied lateral wall, protruding stupefied is the arc, the bull-dozing sword is located protruding stupefied outside, the longitudinal section area of bull-dozing sword is by being close to the one end of baffle is to keeping away from the one end of baffle reduces gradually, and protruding stupefied inboard is provided with a slope, wherein the ejector pin linkage when the baffle forward rotates, the bull-dozing sword can push away earth and pass through in proper order protruding stupefied with the slope.

Furthermore, the soil grabbing part comprises a plurality of grabbing rods fixed at one end of the ejector rod protruding out of the outer shell, the grabbing rods are uniformly distributed in the circumferential direction and are umbrella-shaped, the end parts of the grabbing rods are fixedly connected with a downward-inclined claw, and the claw extends towards the inner side of the convex ridge; wherein the ejector pin rotates reversely to drive each clamping jaw to be inserted into the earth ground.

Furthermore, an annular sealing groove is formed in the bottom wall of the mounting groove, a sealing ring is arranged in the sealing groove, and the sealing ring can protrude out of the upper end face of the inner sleeve; the diapire fixedly connected with of lid presses the clamping ring, press the clamping ring be located with on the corresponding position of seal groove, wherein the installation during the lid, press the clamping ring and can buckle sealed ring to inner skleeve direction guide.

Furthermore, an annular overflow groove is formed in the bottom of the mounting groove, a plurality of cooling grooves are formed in the overflow groove, the cooling grooves are communicated with the water storage groove and are spirally arranged, and accumulated water penetrating into the overflow groove between the cover body and the mounting groove can be spirally flushed out of the cooling grooves into the water storage groove; a plurality of drain holes are formed through the baffle and the convex edge, the drain holes are matched with plugs, a lifting floating block is arranged in the water storage tank, the plugs are respectively fixed at the bottoms of the floating blocks, and after accumulated water flows into the water storage tank, the floating blocks can drive the plugs to be separated from the drain holes.

On the other hand, the invention also provides an embedded method of the embedded liquid level detector convenient for maintenance, which comprises the steps of digging the soil ground to form a soil pit and stacking a soil pile in the middle of the pit bottom; placing the outer shell in the soil pit, and enabling the ejector rod to be in contact with the top of the soil pile; pressing the outer shell to enable the ejector rod to push the inner sleeve upwards to be flush with the inner bottom wall of the mounting groove; the baffle plate rotates to drive each soil pushing part to push away soil; the cover body is arranged in the mounting groove, and the cover body presses the inner sleeve to enable the ejector rod to protrude out of the inner bottom wall of the outer shell; the ejector rod rotates reversely to drive each soil grabbing part to tightly grab the ground.

The invention has the beneficial effects that in the process of manually rotating the rotating disc, under the action of the fit rotation of the guide surface and the guide groove, the guide block can jack up the rotating disc and partially protrude out of the rotating groove, and the rotating disc is pulled outwards after being manually grasped, so that the whole cover body is pulled outwards along with the rotating disc, and the disassembly of the liquid level detector is realized.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a perspective view of a preferred embodiment of an embedded liquid level gauge of the present invention for ease of maintenance;

FIG. 2 is a first perspective view of a preferred embodiment of the cover of the present invention;

FIG. 3 is a second perspective view of a preferred embodiment of the cover of the present invention;

FIG. 4 is a perspective view of a preferred embodiment of the turn disc of the present invention;

FIG. 5 is a first perspective view of a preferred embodiment of the outer housing of the present invention;

FIG. 6 is a half sectional view of a preferred embodiment of the outer and inner sleeves of the present invention;

FIG. 7 is a perspective view of a preferred embodiment of the insulating panel of the present invention;

FIG. 8 is a second perspective view of the preferred embodiment of the outer housing of the present invention;

FIG. 9 is an enlarged view of a portion A of FIG. 8;

FIG. 10 is a partial enlarged view of portion B of FIG. 8;

fig. 11 is a partially enlarged view of a portion C in fig. 6.

In the figure:

the device comprises a cover body 1, a mounting frame 11, a side plate 12, a liquid level sensor 13, a pressing ring 14, a rotating groove 15, a rotating disc 16, a guide groove 161, a spreading groove 162, a spreading block 163, a handrail groove 164, a lifting rotating part 17, a lifting column 171, a lifting limit plate 172, a lifting sleeve 173, a rotating limit plate 174, a lifting torsion spring 175, a guide block 18 and a guide surface 181;

the device comprises an outer shell 2, a mounting groove 21, a water storage groove 22, a sealing groove 23, a sealing ring 24, a plug 25, a floating block 26, a sliding block 27, an overflow groove 28 and a cooling groove 29;

the inner sleeve 3, the step 31, the power supply 32, the power supply accommodating cavity 33, the insulating plate 34, the threading hole 341, the vent hole 342, the circuit board 35, the rotating groove 36 and the sliding groove 37;

a top rod 4, a rotating block 41,

A soil grabbing part 5, a grabbing rod 51 and a claw 52;

a baffle 6 and a drain hole 61;

a dozing portion 7, a ridge 71, a dozing blade 72, and a slope 73.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

Example one

As shown in fig. 1 to 11, the pre-buried liquid level detector is mainly applied to the field of urban waterlogging road surface ponding detection, and when ponding exists, the water level is regularly collected according to a set collection period, so that the ponding condition of a low-lying road section can be detected in real time, a manager can be effectively helped to know the real-time ponding situation, data support is provided for urban disaster prevention and reduction command and scheduling decisions, convenience is provided for public trips, and public lives and properties are prevented from being lost, and the pre-buried liquid level detector is widely applied to scenes such as urban management, municipal traffic roads, residential districts, low-lying zones, underlying parking lots, logistics parks, agricultural irrigation areas, tourist attraction and. The existing embedded liquid level detector is developed by combining years of urban disaster prevention and reduction experience and urban ponding characteristics aiming at the problem of urban waterlogging, has small volume, can realize ponding detection by being embedded in a road surface, and has the characteristics of small construction scale, small influence on urban landscape, high measurement precision and the like. However when the maintenance is dismantled to liquid level detection appearance to needs, just can carry out maintenance to its inside after only needing to pull down the lid, but the lid generally all is installed to flushing with liquid level detection appearance's top terminal surface, this makes and need unpack the lid apart with the help of the instrument with the lid perk back, just can unpack the lid apart the liquid level detection appearance after uncovering, such mode operation is complicated, in order to solve above-mentioned problem, need design the pre-buried formula liquid level detection appearance of a maintenance of being convenient for, concrete structure is as follows:

the cover body 1 is used for installing a liquid level sensor 13 for detecting the water level of accumulated water, specifically, the installation mode is as follows, an installation frame 11 is installed in the middle of the end face of the cover side of the cover body 1, side plates 12 extend from two sides of the installation frame 11, the installation frame 11 is of a cylindrical structure, an installation position is formed in the middle of the installation frame 11 in a hollow mode, the liquid level sensor 13 is installed in the installation position, and after the liquid level sensor 13 is installed in the installation position, the liquid level sensor 13 penetrates through the side plates 12 through bolts and is fixed on the cover body 1 so as to achieve installation. A rotating groove 15 is formed in the middle of the upper end face of the cover body 1, the rotating groove 15 extends downwards from the upper end face of the cover body, a rotating disc 16 is installed in the rotating groove 15, the thickness of the rotating disc 16 is equal to the depth of the rotating groove 15, the rotating disc 16 is connected with the cover body 1 through a lifting rotating part 17, namely, the rotating disc 16 can rotate in the rotating groove 15, meanwhile, the rotating disc 16 can lift in the rotating groove 15 in the rotating process and partially protrudes out of the rotating groove 15, the protruding part can provide operating space for workers, the cover body 1 can be pulled out by grasping the rotating disc 16 and pulling out the rotating disc 16, and the cover body 1 can be conveniently detached in such a way.

In order to realize that the rotating disc 16 is driven to rotate and the rotating disc 16 is lifted in the rotating groove 15, a guide block 18 is arranged at the bottom of the rotating groove 15, the guide block 18 is an arc section, the upper end surface of the guide block 18 is provided with a guide surface 181, the guide surface 181 is obliquely arranged, a guide groove 161 corresponding to the guide block 18 is formed in the bottom end surface of the rotating disc 16, the guide surface 181 is attached to the bottom of the guide groove 161, and when the rotating disc 16 is rotated, the guide groove 161 is attached to the guide surface 181, so that the guide block 18 jacks up the rotating disc 16, namely the rotating disc 16 is lifted and protrudes out of the rotating groove 15. In the present embodiment, the number of the guide blocks 18 is preferably two, which can ensure the force stability of the rotation of the rotary disk 16, and at the same time, in such a way that the length of the single guide block 18 is longer and the lifting time of the rotary disk 16 is longer, the part of the rotary disk 16 protruding out of the rotary slot 15 is more, which makes it easier to apply force to the rotary disk 16 to pull out the cover body 1.

In order to further facilitate the application of force to the rotating disc 16, a through-going opening groove 162 is formed in the rotating disc 16, the opening groove 162 is located outside one long side and one short side of the guide groove 161, that is, the opening groove 162 is composed of an arc-shaped groove and a radial groove, the number of the opening grooves 162 is two, the two opening grooves 162 are centrosymmetric, the cover body 1 is divided by the opening groove 162 to form two opening blocks 163, the number of the opening blocks 163 is also two, the two opening blocks 163 are centrosymmetric, the guide groove 161 is formed in the bottom of the opening block 163, when the rotating disc 16 is rotated, the guide surface 181 slides along the guide groove 161, so that the guide block 18 pushes the opening block 163 to tilt upwards to form a handle, the opening block 163 is manually grasped to facilitate the cover body 1 to be pulled out, and the liquid level detector is more conveniently disassembled.

In order to further facilitate the force application to the rotating disc 16, an armrest groove 164 is further formed in the outer side wall of the opening block 163, in the process of manually grasping the opening block 163, the armrest groove 164 facilitates the grasping of the opening block 163 by the hands of a worker, and meanwhile, the arrangement of the opening groove 162 can also improve the friction force of the hand holding the opening block 163, so that the cover body 1 can be pulled out, and the liquid level detector can be detached more conveniently in such a manner.

Specifically, the lifting and rotating part 17 is configured as follows, the lifting and rotating part 17 includes a lifting column 171 fixed at the bottom of the rotating groove 15, a lifting limit plate 172 integrally disposed at the end of the lifting column 171, a lifting sleeve 173 fixedly connected to the bottom of the rotating disc 16, a rotating limit plate 174 integrally disposed at the inner side wall of the end of the lifting sleeve 173, and a lifting torsion spring 175 having two ends fixedly connected to the lifting limit plate 172 and the rotating limit plate 174, respectively; the lifting column 171 is adapted to be inserted into the lifting sleeve 173; when the rotating disc 16 is rotated, the rotating disc 16 can rotate around the lifting column 171 through the lifting sleeve 173 and stretch the lifting torsion spring 175, and after the rotation of the rotating disc 16 is released, the lifting torsion spring 175 rebounds to drive the rotating disc 16 to retract into the rotating groove 15, so that the rotating disc 16 is automatically retracted after the rotating disc 16 is released.

It should be noted that, current pre-buried formula liquid level detection appearance when the installation, directly excavate a pit on earth, put liquid level detection appearance in this pit to carry out fixed back in advance to this liquid level detection appearance, water the terrace again to flushing with liquid level detection appearance, such mode has following shortcoming: firstly, an additional set of stabilizing mechanism is required to be prepared for pre-fixing the liquid level detector, so that the cost is high and the installation is troublesome; and again because whole liquid level detection appearance is pre-buried in ground, can directly preset a power 32 in liquid level detection appearance for long-time use, but power 32 can produce the heat in the power supply process, if can not in time discharge the heat, can influence the life of the components and parts in the liquid level detection appearance, in order to solve above-mentioned problem, need adopt following scheme, a catch basin 22 is seted up to the lower part bottom face of shell 2, the structure that traditional liquid level detection appearance bottom is sealed is compared in the setting of this catch basin 22, in other words after the bottom is raised in order to be suitable for bottom retaining, in order to cool down the cooling to whole liquid level detection appearance.

The inner sleeve 3 is provided with a locking ring,

the inner sleeve 3 is connected to the inner side wall of the outer shell 2 in a sliding manner, specifically, the inner sleeve 3 slides along the axial direction of the outer shell 2, the bottom of the inner sleeve 3 is sealed, a step 31 is integrally arranged on the inner side wall of the inner sleeve 3, the step 31 is suitable for accommodating a power supply 32, the step 31 extends upwards from the bottom of the inner sleeve 3 and forms a power supply accommodating cavity 33 in the step 31, the power supply 32 is arranged in the power supply accommodating cavity 33, an insulating plate 34 is arranged on the upper end face of the step 31, a circuit board 35 is arranged between the insulating plate 34 and the liquid level sensor 13, the circuit board 35 is fixed on the inner side wall of the inner sleeve 3, the power supply 32, the circuit board 35 and the liquid level sensor 13 are electrically connected, specifically, a threading hole 341 is formed in the middle of the insulating plate 34; in order to install the insulating plate 34, the insulating plate 34 is fixed on the upper end face of the step 31 through a plurality of bolts, the power supply 32 is limited in the power supply accommodating cavity 33 through the insulating plate 34, and meanwhile, the insulating plate 34 is provided with the vent hole 342, so that heat generated in the power supply accommodating cavity 33 when the power supply 32 works is transferred upwards, and the situation that explosion is caused by overheating in a small closed environment is avoided.

The top rod 4 is arranged on the top of the frame,

the ejector rod 4 is rotatably connected to the bottom of the inner sleeve 3, specifically, a rotating groove 36 with a T-shaped section is formed in the center of the bottom of the inner sleeve 3, a rotating block 41 with a T-shaped section is adapted in the rotating groove 36, the ejector rod 4 is mounted at the bottom of the rotating block 41, the ejector rod 4 and the rotating block 41 are integrally arranged, so that the ejector rod 4 can rotate, before the liquid level detector is mounted, the bottom of the ejector rod 4 extends out of the bottom end face of the outer shell 2, further, when the liquid level detector is mounted, the ejector rod 4 can push the inner sleeve 3 to slide upwards by pressing the outer shell 2, the ejector rod 4 is pushed to be flush with the bottom end face of the outer shell 2 at most, at the moment, the upper end face of the inner sleeve 3 needs to be flush with the inner bottom wall of the mounting groove 21, therefore, the sum of the lengths of the ejector rod 4 and the inner sleeve 3 is equal to the distance between, simultaneously, the one end that is located protrusion shell body 2 at ejector pin 4 is provided with and grabs soil portion 5, through the setting of grabbing soil portion 5, after pressing inner skleeve 3, ejector pin 4 can stretch out shell body 2's bottom face once more, grasps earth in order to realize fixing in advance to the liquid level detection appearance through grabbing soil portion 5 to in water the terrace.

The soil grabbing part 5 is specifically structured in such a way that a plurality of grabbing rods 51 are arranged at one end of the top rod 4 protruding out of the outer shell 2, the number of the grabbing rods 51 can be six, the grabbing rods can stand on soil better than four when the grabbing rods are six, and when the number of the grabbing rods 51 exceeds six, the stress surface between the grabbing rods 51 and the soil is too large so as to influence the rising of the top rod 4 when the outer shell 2 is pressed; each grab pole 51 circumference evenly distributed is on the bottom face of ejector pin 4, and each grab pole 51 distributes into the umbelliform to grab pole 51 and vertically insert in earth and fix in advance, also for the preliminary fixed stability of detector in order to further improve, can set up jack catch 52 at the tip of grabbing pole 51, jack catch 52 to the inboard extension of protruding stupefied 71, jack catch 52 downward sloping so that during jack catch 52 transversely inserted earth when ejector pin 4 pushes away downwards, so that whole liquid level detector obtains better ground effect of grabbing.

The baffle-plates (6) are arranged in the shell,

the baffle 6 is rotatably connected with the outer shell 2, the baffle 6 is positioned at the opening of the water storage tank 22, the baffle 6 is a disc, and the water storage tank 22 can be sealed by the baffle 6, so that water can be stored in the water storage tank 22 and the power supply accommodating cavity 33 can be cooled from the bottom, and the service lives of the circuit board 35 and the liquid level sensor 13 are ensured; this baffle 6 is passed by ejector pin 4, and this baffle 6 and 4 threaded connection of ejector pin, this baffle 6 can take place to rotate when making ejector pin 4 go up and down, and simultaneously, bottom face at baffle 6 is provided with a plurality of portions of bulldozing 7, 7 circumference evenly distributed of each portion of bulldozing, 4 drive baffles 6 rotations of ejector pin 4 lifting in-process ejector pin, baffle 6 rotates and drives each portion of bulldozing 7 and promote outside the lateral wall of the outside casing 2 of the earth of baffle 6 below, with the earth of paving liquid level detector bottom, with the stability of standing of guaranteeing liquid level detector.

The structure of the concrete bulldozing part 7 is as follows, a plurality of convex ridges 71 are arranged on the bottom end surface of the baffle 6, the convex ridges 71 are arc sections, the convex ridge direction of the arc faces the rotating direction of the baffle 6 when the ejector rod 4 rises, a bulldozing knife 72 is integrally arranged on the outer side of each convex ridge 71, the cross section of each bulldozing knife 72 is a right-angled triangle, the right-angled side of the short side of each right-angled triangle is close to the corresponding convex ridge 71, the right-angled side of the long side of each right-angled triangle is attached to the corresponding baffle 6, and the bevel side faces the outer side of the corresponding convex ridge 71, so that the baffle 6 is driven to rotate when the ejector rod 4 rises, the bulldozing knife 72 rotates along with the corresponding baffle 6 to pull away soil, the convex ridges 71 are designed into arc sections, so that the bulldozing knife 72 can also adapt to the arc sections, the soil can; because the outside of protruding stupefied 71 sets up the outside that bulldozing blade 72 back clod can not pile up at protruding stupefied 71, but the clod still can pile up in the inboard of protruding stupefied 71 after crossing bulldozing blade 72, consequently can set up a slope 73 in the inboard of protruding stupefied 71, the cross-section of this slope 73 also is right triangle, but this right triangle's long limit right-angle side pastes and leans on protruding stupefied 71, the short side right-angle side pastes baffle 6, earth is in proper order through bulldozing blade 72, protruding stupefied 71 and slope 73 back to next bulldozing blade 72, and can not remain on protruding stupefied 71 to the push flat of soil heap.

As a liquid level detector, the whole liquid level detector needs to have certain sealing requirements, and specifically, the liquid level detector can adopt a structure that an annular sealing groove 23 is formed in the bottom wall of the mounting groove 21, a sealing ring 24 is arranged in the sealing groove 23, the sealing ring 24 protrudes out of the sealing groove 23, after the cover body 1 is mounted, the ejector rod 4 pushes the inner sleeve 3 to slide upwards so that the sealing ring 24 is abutted against the cover body 1, thereby preventing rainwater from entering the inner sleeve 3 and ensuring the service lives of the liquid level sensor 13, the circuit board 35 and the power supply 32; after the ejector pin 4 rises to the bottom face of the ejector pin 4 and is leveled with the bottom face of the outer shell 2, the cover body 1 is screwed, the cover body 1 can press the sealing ring 24 to enable the sealing ring 24 to bend towards the inner sleeve 3, the sealing effect of the cover body 1 and the outer shell 2 is further improved, meanwhile, the inner sleeve 3 is pressed, namely, the pushing of the sealing ring 24 is realized, the downward moving distance of the ejector pin 4 is equal to the thickness of the sealing ring 24, and the downward pressing of the inner sleeve 3 is realized through the arrangement of the sealing ring 24.

In order to ensure that the sealing ring 24 is inclined and bent towards the inner sleeve 3, the pressing ring 14 is fixedly connected to the bottom wall of the cover body 1, the pressing ring 14 is located at a position corresponding to the sealing groove 23, the longitudinal section of the pressing ring 14 is an arc with an opening facing the sealing groove 23, after the sealing ring 24 contacts the pressing ring 14, the sealing ring 24 can be bent towards the inner sleeve 3 under the guidance of the pressing ring 14 and extends to the upper side of the inner sleeve 3, and the phenomenon that the sealing ring 24 cannot press the inner sleeve 3 due to bending towards the direction away from the inner sleeve 3 is avoided.

In order to further improve the sealing effect, the sealing ring 24 is composed of two ring bodies, and a surface formed between the two ring bodies is coplanar with the outer side surface of the pressing ring 14, when the inner sleeve 3 is pushed to be flush with the bottom wall of the mounting groove 21 by the ejector rod 4 and then the cover body 1 is mounted, the ring body close to one side of the inner sleeve 3 is firstly contacted with the pressing ring 14, the cover body 1 is continuously installed, so that the ring body close to one side of the inner sleeve 3 is guided by the pressing ring 14 to be bent to the upper part of the inner sleeve 3, after keeping away from the ring body of inner skleeve 3 one side and the contact of lid 1, continue to install lid 1 and make the ring body of keeping away from inner skleeve 3 one side to keeping away from inner skleeve 3 direction and buckling, the ring body of keeping away from inner skleeve 3 one side this moment plays a double-sealed effect to whole liquid level detection appearance, and the ring body that is close to inner skleeve 3 one side plays double-sealed effect to whole liquid level detection appearance, and then has improved whole liquid level detection appearance's sealed effect. In order to facilitate the bending of the two ring bodies, the ring bodies are arranged in a rounding manner at the positions where the ring bodies are in contact with the pressing ring 14 or the cover body 1, so that under the guidance of the rounding manner, the ring body close to one side of the inner sleeve 3 is easier to bend along the pressing ring 14 after being in contact with the pressing ring 14, and the ring body far away from one side of the inner sleeve 3 is easier to bend along the cover body 1 after being in contact with the cover body 1.

In this embodiment, before installing the liquid level detection instrument, the lid 1 is preinstalled in the mounting groove 21 to guarantee the wholeness of whole liquid level detection instrument, later when needing to be sealed, the fastening bolt that further screws realizes, such mode liquid level detection instrument's installation is more simple and convenient.

It should be noted that there is still a gap between the cover body 1 and the mounting groove 21, and the accumulated water of waterlogging still permeates inwards along the gap between the side wall of the cover body 1 and the inner side wall of the mounting groove 21, and if the accumulated water is blocked only by two layers of rings, the leakage is caused by excessive accumulated water and excessive pressure or corrosion of the sealing ring 24, in order to solve the above problems, the following scheme needs to be designed, an annular overflow groove 28 is further formed at the bottom of the mounting groove 21, the overflow groove 28 is located at the outer ring of the sealing groove 23, so that the rainwater permeating between the side wall of the cover body 1 and the inner side wall of the mounting groove 21 can be buffered in the overflow groove 28, the overflow groove 28 buffers the rainwater, the rainwater is prevented from directly impacting the sealing ring 24, and the overflow groove 28 stores the rainwater. However, the overflow groove 28 can only play a role when the liquid level detector is used for the first time, and the accumulated water in the overflow groove 28 needs to be led out to ensure the water storage and buffering functions of the overflow groove 28, so that a plurality of cooling grooves 29 are formed in the inner bottom wall of the overflow groove 28, the cooling grooves 29 extend downwards along the outer shell 2 and are communicated to the water storage groove 22, and when rainwater slides in the cooling grooves 29 and passes through the power supply 32, the rainwater can take away the heat transferred to the power supply accommodating cavity 33 by the power supply 32 in the working process, so that the environmental temperature of the liquid level sensor 13, the circuit board 35 and the power supply 32 in the working process is ensured, and the situation that the liquid level sensor 13, the circuit board 35 and the power supply 32 are damaged due; in order to improve the cooling effect of rainwater in the cooling tank 29 on the power supply accommodating cavity 33, the cooling tank 29 is arranged in a spiral mode, so that the detention time of the rainwater in the cooling tank 29 can be prolonged, namely, the exchange time of the rainwater and heat in the power supply accommodating cavity 33 is prolonged, the cooling effect is improved, meanwhile, when the rainwater flows out of the water storage tank 22 after passing through the cooling tank 29 due to the spiral arrangement of the cooling tank 29, the impact force is large, the accumulated water in the water storage tank 22 forms a vortex to stir the accumulated water in the water storage tank 22, the effect of absorbing heat of the bottom of the power supply accommodating cavity 33 is better due to the accumulated water in the water storage tank 22, the rainwater blocked by the sealing ring 24 is guided into the water storage tank 22, and water storage in the water storage tank 22 is realized.

In order to timely replace the accumulated water in the water storage tank 22 to ensure that the accumulated water in the water storage tank 22 can sufficiently absorb the heat in the power supply accommodating cavity 33, a plurality of water discharge holes 61 are formed in the baffle 6, the water discharge holes 61 are positioned at the positions of the convex ridges 71, the water discharge holes 61 penetrate through the convex ridges 71, plugs 25 are inserted into the water discharge holes 61, a liftable floating block 26 is arranged in the water storage tank 22, specifically, the floating block 26 is sleeved on the rotating block 41, the lifting linearity of the floating block 26 is ensured through the rotating block 41, so that the plugs 25 are aligned to the corresponding water discharge holes 61, each plug 25 is respectively connected to the bottom of the floating block 26, after the water storage tank 22 is filled with enough accumulated water, the floating block 26 can float up to enable the plugs 25 to be separated from the water discharge holes 61, the water is supplied to the water discharge holes 61 to realize the water drainage of the water storage tank 22, and meanwhile, when the accumulated water is less, the plugs 25 can be inserted into the water discharge holes 61 under, the plug 25 plugs the drain hole 61, and the water storage tank 22 stores water.

In order to realize the sliding of the inner sleeve 3, a plurality of sliding grooves 37 are formed in the outer side wall of the inner sleeve 3, the sliding grooves 37 extend along the axial direction of the inner sleeve 3, a sliding block 27 matched with the sliding grooves 37 is arranged on the inner side wall of the outer shell 2, and the sliding block 27 can slide in the sliding grooves 37 in the lifting process of the ejector rod 4 so as to ensure the sliding linearity of the inner sleeve 3.

The working principle is as follows:

firstly digging a soil pit on the soil ground, then piling a soil pile in the middle of the bottom of the soil pit, then starting to install a liquid level detector, wherein a mandril 4 protrudes out of the bottom end surface of an outer shell 2, the upper end surface of an inner sleeve 3 is lower than the plane of the bottom of an installation groove 21, then placing the outer shell 2 in the soil pit, the mandril 4 firstly contacts with the top of the soil pile, then downwards pressing the outer shell 2 to enable the mandril 4 to be pushed by the soil pile to tamp the soil pile, the mandril 4 slides upwards and drives the inner sleeve 3 to slide along a sliding groove 37 until the upper end surface of the inner sleeve 3 is flush with the bottom wall of the installation groove 21 when being pushed, a sealing ring 24 can contact with a pressing ring 14, meanwhile, the mandril 4 can drive a baffle 6 to rotate and drive each bulldozer 72 to push the soil to the outer side wall of the outer shell 2 and flatten the soil pile, and then continuing to, make the pressing ring 14 promote the sealing ring 24 and warp and buckle to 3 directions of interior sleeve, after the tank bottom laminating of lid 1 and mounting groove 21, sealing ring 24 can press inner skleeve 3 and make inner skleeve 3 promote ejector pin 4 for during ejector pin 4 inserts back to the earth of tamping, thereby go on pre-fixing to outer casing 2, water the terrace again to flush with the liquid level detection appearance top. When raining, rainwater can infiltrate into the overflow groove 28 along the gap between the cover body 1 and the inner side wall of the mounting groove 21, rainwater in the overflow groove 28 can be stored in the water storage groove 22 through the cooling groove 29, meanwhile, heat inside the power supply accommodating cavity 33 can be taken away when the rainwater flows in the cooling groove 29, and after the floating block 26 is floated by accumulated water in the water storage groove 22, the plug 25 is separated from the drain hole 61, so that the accumulated water in the water storage groove 22 can be drained.

Example two

On the basis of the first embodiment, the second embodiment further provides a pre-burying method for a pre-buried liquid level detector, which is specifically described in the first embodiment for reference of the pre-buried liquid level detector and will not be described herein again,

digging a soil ground to form a soil pit, and stacking a soil pile in the middle of the bottom of the pit;

placing the outer shell 2 in the soil pit so that the ejector rod 4 is in contact with the top of the soil pile;

pressing the outer shell 2 to enable the ejector rod 4 to push the inner sleeve 3 upwards to be flush with the inner bottom wall of the mounting groove 21;

the baffle 6 rotates to drive each soil pushing part 7 to push away soil;

the cover body 1 is arranged in the mounting groove 21, and the cover body 1 presses the inner sleeve 3 to enable the ejector rod 4 to protrude out of the inner bottom wall of the outer shell 2;

the push rod 4 rotates reversely to drive each soil grabbing part 5 to grab the ground.

In light of the foregoing description of the preferred embodiment of the present invention, it is to be understood that various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.