CN212271018U

CN212271018U - Anti-backflow well lid

Info

Publication number: CN212271018U
Application number: CN202022671873.9U
Authority: CN
Inventors: 于楠
Original assignee: Tianjin Jingshang Casting Technology Co ltd
Current assignee: Tianjin Jingshang Casting Technology Co ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-01-01
Anticipated expiration: 2030-11-18

Abstract

The utility model discloses a backflow-preventing well lid, which comprises a well base and a lid body hinged with the well base, wherein the well base comprises a well ring, the inner side of the well ring is provided with a lid body bearing platform, the lid body bearing platform is provided with a U-shaped annular groove, a T-shaped annular rubber ring is placed in the U-shaped annular groove, the outer side of the well ring is provided with an annular step, a first reinforcing rib is arranged between the annular step and the well ring, the left side and the right side of the lid body are symmetrically provided with two through holes, a backflow-preventing device is respectively fixedly connected below the through holes, two lifting lugs of the backflow-preventing device are oppositely arranged, the lower surface of the lid body vertically and fixedly connected on the two sides of the through holes is in an ellipsoidal shape, the two long-diameter ends of the floating ball are respectively connected with a sliding rod, the two sliding rods are respectively and slidably connected in the sliding grooves of the two lifting lugs, the top of the, has wide application prospect and is beneficial to popularization and application.

Description

Anti-backflow well lid

Technical Field

The utility model relates to a well lid technical field especially relates to a prevent flowing backward well lid.

Background

With the increase of urban precipitation, the rain drainage well cover becomes an essential component in urban road construction. In the prior art, the rainwater drainage well cover for urban streets has the main effect that rainwater or sewage can leak into the rainwater well through the well cover and then be drained away from an underground drainage pipeline, so that the accumulated water on the road surface is avoided. Secondly, still have the safety protection effect, can effectively prevent that pedestrian on the road from falling into the well to cause unnecessary accident and harm. However, the biggest defect is that when the rainwater is slightly large, water in the drainage pipeline flows backwards, and even sewage in a sewage pipeline communicated with the drainage pipeline flows backwards to the surface of a street, so that the urban image is damaged and the health of citizens is also harmed. Therefore, it is urgently needed to develop a backflow prevention manhole cover to solve the technical problems.

In view of this, the present invention is especially provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a prevent flowing backward well lid, simple structure, convenient to use can prevent effectively that rainwater or sewage among the drainage pipe from flowing backward the polluted environment upwards, has wide application prospect, is favorable to popularizing and applying.

In order to achieve the above object, the utility model provides a prevent flowing backward well lid, including well seat and the lid that articulates with the well seat mutually, the well seat includes the walling crib, be equipped with the lid plummer on the circumference at the inboard middle part of walling crib, be equipped with U type annular groove on the lid plummer, place T type annular rubber ring rather than assorted in the U type annular groove, be equipped with annular step on the circumference of the bottom outside the walling crib, be equipped with a plurality of first strengthening ribs that are right triangle-angled between annular step and the walling crib, the lid bilateral symmetry is equipped with two through-holes, the through-hole below is respectively the rigid coupling has a prevent flowing backward device, prevent flowing backward the device by two lugs, two slide bars, a floater and a circular baffle constitute, two relative settings, perpendicular rigid coupling is in the lid lower surface of through-hole both sides, the lug is the ellipsoid shape, the two ends of the long diameter of the cover body are respectively connected with a sliding rod, the two sliding rods are respectively connected in the sliding grooves of the two lifting lugs in a sliding mode, the outer ends of the two sliding rods are respectively provided with a spherical limiting portion, the top of the floating ball is connected with a circular baffle, and a baffle accommodating groove used for accommodating the circular baffle is formed in the periphery of a through hole in the lower surface of the cover body.

Preferably, three spring arms are uniformly distributed on the lower surface of the cover body, three clamping blocks clamped with the spring arms are correspondingly arranged on the well seat, and the cover body is fixed with the well seat through a three-point type spring arm locking device.

Preferably, the lower surface of the cover body is provided with a fixed seat, the fixed seat is provided with a fastening bolt, the top end of the lifting lug is provided with a bolt hole, and the fastening bolt penetrates through the bolt hole to fix the lifting lug in the fixed seat.

Preferably, the cover body is provided with a smart tag installation cavity at the center for installing the NFC chip.

Preferably, the lower surface of the cover body is provided with second reinforcing ribs which are in a radiation shape from the center to the periphery.

Preferably, the cover body is hinged with the well seat through bolts.

Preferably, a plurality of runway-shaped lightening holes are formed in the annular step.

Preferably, the upper surface of the cover body is provided with a plurality of anti-skid patterns.

Preferably, the well seat is internally provided with a falling prevention net.

The utility model provides a pair of prevent flowing backward well lid has following beneficial effect.

1. The utility model discloses simple structure, convenient to use can prevent effectively that rainwater or sewage among the drainage pipe from upwards flowing backward polluted environment, has wide application prospect, is favorable to popularizing and applying.

2. The utility model discloses have the function of making an uproar of falling the damping, adopt articulated connected mode between lid and the well seat to it is fixed with lid and well seat through bikini spring arm locking device, the lid takes place to bounce and vibration, noise reduction when can effectively avoiding the well lid to be rolled by the vehicle. Through the cooperation use of U type annular recess and T type annular rubber ring, help further vibration/noise reduction.

3. The utility model discloses the compressive strength of well seat and lid can be improved in the setting of first strengthening rib and second strengthening rib, improves the loading capacity of well lid, prolongs its life.

4. The utility model discloses the setting of lid upper surface anti-skidding decorative pattern and the setting of preventing weighing down the net in the well seat have further improved the security performance of well lid in the use.

Drawings

Fig. 1 is a schematic structural view of a backflow prevention well lid provided by the present invention;

fig. 2 is a schematic structural view of a backflow prevention device of a backflow prevention well lid provided by the present invention;

fig. 3 is a schematic view of a lifting lug structure of the anti-backflow well lid provided by the utility model;

fig. 4 is the utility model provides a pair of prevent flowing backward well lid's T type annular rubber ring and U type annular groove's assembly cross-sectional view.

In the figure:

1. the cover 101, the second stiffener 102, the spring arm 103, the smart tag mounting cavity 104, the bolt 105, the baffle receiving slot 106, the through hole 2, the well seat 201, the well collar 202, the cover carrier 203, the annular step 204, the first stiffener 205, the lightening hole 206, the latch 207, the U-shaped annular groove 208, the T-shaped annular rubber ring 3, the anti-backflow device 301, the lifting lug 3011, the sliding slot 3012, the bolt hole 302, the sliding rod 303, the floating ball 304, the circular baffle 305, the fixing seat 306, the fastening bolt 307, and the spherical limiting portion.

Detailed Description

The present invention will be further described with reference to the following specific embodiments and accompanying drawings to facilitate understanding of the present invention.

As shown in fig. 1, for the utility model provides a pair of prevent flowing backward well lid's structural schematic diagram. This prevent flowing backward well lid includes well seat 2 and with well seat 2 looks articulated lid 1, well seat 2 includes walling crib 201, be equipped with lid plummer 202 on the circumference at the inboard middle part of walling crib 201, be equipped with U type annular groove 207 on the lid plummer 202, place rather than assorted T type annular rubber ring 208 in the U type annular groove 207. As shown in fig. 4, for the utility model provides a pair of prevent flowing backward well lid's T type annular rubber ring and U type annular groove's assembly cross-sectional view. The anti-backflow device is characterized in that an annular step 203 is arranged on the circumference of the bottom of the outer side of the walling crib 201, a plurality of first reinforcing ribs 204 in the shape of a right triangle are arranged between the annular step 203 and the walling crib 201, the cover body 1 is bilaterally symmetrically provided with two through holes 106, and the lower portions of the through holes 106 are fixedly connected with anti-backflow devices 3 respectively.

As shown in fig. 2 and 3, do respectively the utility model provides a pair of prevent flowing backward well lid prevent flowing backward device schematic structure and lug schematic structure thereof. The backflow prevention device 3 is composed of two lifting lugs 301, two sliding rods 302, a floating ball 303 and a circular baffle 304, the two lifting lugs 301 are oppositely arranged and vertically and fixedly connected to the lower surface of the cover body 1 on two sides of the through hole 106, the floating ball 303 is in an ellipsoidal shape, two long-diameter ends of the floating ball 303 are respectively connected with the sliding rods 302, the two sliding rods 302 are respectively and slidably connected into sliding grooves 3011 of the two lifting lugs 301, the outer ends of the two sliding rods 302 are respectively provided with a spherical limiting part 307, the top of the floating ball 303 is connected with the circular baffle 304, and baffle accommodating grooves 105 used for accommodating the circular baffle 304 are arranged around the through hole 106 on the lower surface. Three spring arms 102 are uniformly distributed on the lower surface of the cover body 1, three clamping blocks 206 clamped with the spring arms 102 are correspondingly arranged on the well seat 2, and the cover body 1 and the well seat 2 are fixed through a three-point type spring arm locking device. The lower surface of the cover body 1 is provided with a fixing seat 305, the fixing seat 305 is provided with a fastening bolt 306, the top end of the lifting lug 301 is provided with a bolt hole 3012, and the fastening bolt 306 penetrates through the bolt hole 3012 to fix the lifting lug 301 in the fixing seat 305. Preferably, a smart tag installation cavity 103 for installing an NFC chip is arranged at the center of the cover body 1. The lower surface of the cover body 1 is provided with a second reinforcing rib 101 which is in a radiation shape from the center to the periphery. The cover body 1 is hinged with the well seat 2 through a bolt 104. A plurality of runway-shaped lightening holes 205 are arranged on the annular step 203. The upper surface of the cover body 1 is provided with a plurality of anti-skid patterns (not shown in the figure), and the well seat 2 is internally provided with an anti-falling net (not shown in the figure).

The utility model discloses a theory of operation does:

when the liquid level of the underground rainwater or sewage continuously rises to the bottom of the lifting lug 301, the floating ball 303 continuously rises along with the liquid level of the rainwater or the sewage under the action of buoyancy until the circular baffle 304 at the top of the floating ball 303 moves into the baffle accommodating groove 105 to block the through hole 106, and therefore backflow prevention can be achieved.

The utility model discloses simple structure, convenient to use can prevent effectively that rainwater or sewage among the drainage pipe from upwards flowing backward polluted environment, has wide application prospect, is favorable to popularizing and applying. The utility model discloses have the function of making an uproar of falling the damping, adopt articulated connected mode between lid 1 and the well seat 2 to it is fixed with lid 1 and well seat 2 through bikini spring arm 102 locking device, and lid 1 takes place to bounce and vibration, noise reduction when can effectively avoiding the well lid to be rolled by the vehicle. The U-shaped annular groove 207 and the T-shaped annular rubber ring 208 are matched for use, so that further shock absorption and noise reduction are facilitated. The utility model discloses the compressive strength of well seat 2 and lid 1 can be improved in the setting of first strengthening rib 204 and second strengthening rib 101, improves the load-carrying capacity of well lid, prolongs its life. The utility model discloses the setting of preventing weighing down the net in the setting of 1 upper surface antiskid decorative pattern of lid and well seat 2 can further improve the security performance of well lid in the use.

While the invention has been described in detail with reference to specific embodiments thereof, the foregoing description of the embodiments is merely provided to assist in understanding the principles of the invention. It should be understood that any obvious modifications, equivalents and other improvements made by those skilled in the art without departing from the spirit of the present invention are intended to be included within the scope of the present invention.

Claims

1. The anti-backflow well lid is characterized by comprising a well base and a lid body hinged with the well base, wherein the well base comprises a well ring, a lid body bearing table is arranged on the circumference of the middle part of the inner side of the well ring, a U-shaped annular groove is arranged on the lid body bearing table, a T-shaped annular rubber ring matched with the U-shaped annular groove is arranged in the U-shaped annular groove, an annular step is arranged on the circumference of the bottom of the outer side of the well ring, a plurality of first reinforcing ribs in the shape of right-angled triangles are arranged between the annular step and the well ring, two through holes are symmetrically arranged on the left and right of the lid body, an anti-backflow device is fixedly connected below the through holes respectively and comprises two lifting lugs, two sliding rods, a floating ball and a circular baffle plate, the two lifting lugs are oppositely arranged, the lower surface of the lid body is perpendicular to the two sides of the through holes, the floating ball, the two sliding rods are respectively connected in the sliding grooves of the two lifting lugs in a sliding mode, the outer ends of the two sliding rods are respectively provided with a spherical limiting portion, the top of the floating ball is connected with a circular baffle, and a baffle accommodating groove used for accommodating the circular baffle is formed in the periphery of the through hole in the lower surface of the cover body.

2. The anti-backflow well lid according to claim 1, wherein three spring arms are uniformly distributed on the lower surface of the lid body, three clamping blocks clamped with the spring arms are correspondingly arranged on the well base, and the lid body and the well base are fixed through a three-point type spring arm locking device.

3. The anti-backflow well lid according to claim 2, wherein a fixing seat is arranged on the lower surface of the lid body, a fastening bolt is arranged on the fixing seat, a bolt hole is formed in the top end of the lifting lug, and the fastening bolt penetrates through the bolt hole to fix the lifting lug in the fixing seat.

4. The anti-backflow well lid according to claim 3, wherein an intelligent tag installation cavity for installing an NFC chip is formed in the center of the lid body.

5. The anti-backflow well lid according to claim 4, wherein the lower surface of the lid body is provided with second reinforcing ribs which are in a radial shape from the center to the periphery.

6. The anti-backflow well lid according to claim 5, wherein the lid body is hinged to the well base through a bolt.

7. The well lid of claim 6, wherein the annular step is provided with a plurality of runway-shaped lightening holes.

8. The anti-backflow well lid according to claim 7, wherein a plurality of anti-slip patterns are arranged on the upper surface of the lid body.

9. The anti-backflow well lid as claimed in claim 8, wherein an anti-falling net is arranged in the well seat.