CN205134375U - Dysmorphism well lid - Google Patents

Abstract

Dysmorphism well lid, including lid and base, the lid periphery is less than 90 evagination circular arc by four central angles of symmetry setting and constitutes, and the crossing department of two arbitrary evagination circular arcs of lid is equipped with locking device, the upper surface border of lid is open protruding piece, the base comprises lateral wall and bottom surface layer. The utility model discloses an improve the point: the well lid shape is special, can effectively must play the positioning action to fine reduction because of removing the wearing and tearing that cause repeatedly, improved life, the lid is furnished with four locking device, has improved the roughness of well lid, also reduces beating of well lid, special panel design has fine anti -skidding effect, and there is the sharp husky function of fine drainage at open decorative pattern edge, it takes precautions against earthquakes to have falls the design of making an uproar, and the base embeds the rubber bump protection ring, can improve the roughness of well lid, reduces the car and sails out of date noise.

Description

Abnormity well lid

Technical field

The utility model relates to a kind of inspection well cover, especially a kind of special-shaped well lid.

Background technology

Along with the progress of modernization science and technology civilization, and the sharply increase of population, the sewer construction in city is more and more important, and it is more and more important that the safety of the antitheft and road pedestrian vehicle of inspection well cover shows.And existing lid is easily lost because impacting by sewer stream etc., itself is also easily stolen, lacks lid to cause Pedestrians and vehicles easily to drop in inspection shaft, there is potential safety hazard to Pedestrians and vehicles; Lid and base often remove and put back to, and frictional force is large, decreases the shelf life of well lid, adds social cost.

The well lid of conventional form is generally circular and square, round manhole cover uniform force, and it is convenient to place, but moves and the wearing and tearing that cause relative to being also easy to rotation; And square well cover is because there being corner angle, accurate positioning, not easily produces relative displacement, but edges and corners stress is concentrated, and there is stressed centrostigma, stressed fragile in actual use.Therefore there is very large Improvement requirement in well lid.

Summary of the invention

For solving the problems of the technologies described above, the utility model provides a kind of special-shaped well lid.

The technical solution of the utility model: special-shaped well lid, comprise lid and base, it is characterized in that: the evagination circular arc that described lid periphery is less than 90 ° by symmetrically arranged four central angles forms, any two evagination arcs intersect places of lid are provided with locking device, and the upper surface edge of described lid is open protruding block; Described base is made up of sidewall and bottom surface layer.

Article four, evagination arcs intersect composition is convenient to the location of well lid and base, two evagination arcs intersect places are stress concentration point, be easy to damage because of overstress, and locking device be arranged on this position, enhance the coagulability between lid and base, improve the impact strength of lid, strengthen the endurance degree of lid; The setting of open protruding block, is convenient to the outflows such as ponding silt, reduces its alluvial on lid.

Further, the middle part of the corresponding every section of evagination circular arc of described sidewall and two positions, summit are provided with fin.Enhance stress intensity and the firmness of base side wall.

Further, rubber bump protection ring is provided with between described base and lid.

Further, the upper surface of lid is provided with lift hole and lug boss.

Further, described locking device is that dormant bolt connects.

The beneficial effects of the utility model: 1. well lid shape is special, effectively can must play positioning action, thus well reduce the wearing and tearing caused because repeatedly moving, improve application life.2. lid is furnished with four locking devices, improves the planeness of well lid, also reduces beating of well lid.3. special panel designs, has good skidproof effect, open pattern edge, has the husky function of good draining profit.4. with shockproof noise-reducing design, base built-in rubber bump protection ring, can improve the planeness of well lid, reduces noise when car crosses.

Accompanying drawing explanation

Fig. 1 is special-shaped well lid schematic diagram;

Fig. 2 is the schematic diagram of special-shaped another angle of well lid;

Fig. 3 is special-shaped well lid open mode schematic diagram.

In figure, 1, lid, 2, base, 21, sidewall, 22, bottom surface layer, 3, evagination circular arc, 31, middle part, 32, top, 4, locking device, 5, open protruding block, 6, fin, 7, lift hole, 8, lug boss.

Detailed description of the invention

Below in conjunction with accompanying drawing the utility model done and clearly describe, make technical scheme more clear.

As shown in Figure 1-2, lid 1 and base 2 form special-shaped well lid, base is made up of sidewall 21 and bottom surface layer 22, it is end to end that lid 1 periphery is that 4 four central angles are less than the evagination circular arc 3 of 90 °, any two evagination circular arc joints are provided with locking device 4, and lid 1 upper surface outer is provided with open protruding block 5.Evagination circular arc is as the minor arc at two tops 32 and place, middle part 31 in figure, and 4 evagination circular arcs constitute lid outer shape, is convenient to location, and anti-displacement is slided; Lid outer arranges open protruding block, namely leaves space mutually between each projection, avoids silt current to accumulate on lid.

The sidewall 21 outside middle part 31 of dome arc 3 and two top 32 places is provided with fin 6.

Between base 2 and lid 1, rubber bump protection ring can be set, reduce the vibrations of lid and base.

The upper surface of lid 1 is provided with lift hole 7 and lug boss 8.

Locking device 4 can be the common connector of the effect of being fixedly connected with or the sealed lockset of playing, and considers preferably to be connected by dormant bolt from cost and convenience.

These are only preferred embodiment of the present utility model, the suitable distortion made according to mentality of designing of the present utility model for those skilled in the art and improvement, all should belong within protection domain of the present utility model.

Claims (5)

1. special-shaped well lid, comprise lid and base, it is characterized in that: the evagination circular arc that described lid periphery is less than 90 ° by symmetrically arranged four central angles forms, any two evagination arcs intersect places of lid are provided with locking device, and the upper surface edge of described lid is open protruding block; Described base is made up of sidewall and bottom surface layer.

2. special-shaped well lid according to claim 1, is characterized in that: middle part and two positions, summit of the corresponding every section of evagination circular arc of described sidewall are provided with fin.

3. special-shaped well lid according to claim 1, is characterized in that: be provided with rubber bump protection ring between described base and lid.

4. special-shaped well lid according to claim 1, is characterized in that: the upper surface of lid is provided with lift hole and lug boss.

5. special-shaped well lid according to claim 1, is characterized in that: described locking device is that dormant bolt connects.