A kind of improved manhole cover assembly and powder jar
Technical field
The utility model relates to a kind of manhole cover assembly, particularly a kind of improved manhole cover assembly.In addition, the utility model provides the jar of the powder with this manhole cover assembly.
Background technology
At present, the powder top ends of cans of transportation dry-mixed mortar generally adopts the sealing of manhole cover device, needs manually to open.On the one hand, owing to after discharge finishes, form negative pressure in the dry-mixed mortar tank body, on the other hand, mix material viscosity to manhole cover under high-pressure extrusion owing to do, under this condition, when the charging process, it is big that manhole cover is normally opened labour intensity, and efficiency is low.
The utility model content
In order to overcome the above-mentioned defective and the deficiency of prior art, the utility model provides a kind of improved manhole cover assembly.The elasticity force aid part is set on manhole pedestal and/or manhole cover, and manhole cover covers back elasticity of compression force aid part.When opening, elasticity force aid part top manhole cover upwards under the effect of elastic force is for the unlatching of manhole cover provides power-assisted.Reduce the artificial labour intensity of opening, raise the efficiency.
Simultaneously, the utility model also provides the jar of the powder with above-mentioned manhole cover assembly.
A kind of improved manhole cover assembly that the utility model provides, comprise the manhole pedestal, be placed on the manhole cover on the described manhole pedestal, also comprise the elasticity force aid part, described elasticity force aid part is located on the described manhole pedestal, and an end is fixed, the other end acts on described manhole cover.
A kind of improved manhole cover assembly that the utility model provides, comprise the manhole pedestal, be placed on the manhole cover on the described manhole pedestal, also comprise the elasticity force aid part, described elasticity force aid part is located on the described manhole cover, and an end is fixed, the other end acts on described manhole pedestal.
A kind of improved manhole cover assembly that the utility model provides, comprise the manhole pedestal, be placed on the manhole cover on the described manhole pedestal, also comprise the elasticity force aid part, described elasticity force aid part is located at respectively on described manhole pedestal and the manhole cover, be located at that described elasticity force aid part one end on the described manhole pedestal is fixed, the other end acts on described manhole cover, be located at that described elasticity force aid part one end on the described manhole cover is fixed, the other end acts on described manhole pedestal.
Preferably, described elasticity force aid part is located at the upper end of described manhole pedestal.
Preferably, described elasticity force aid part is located at the bottom of described manhole cover.
Preferably, described elasticity force aid part is a plurality of, and spaced apart.
Preferably, described a plurality of elasticity force aid part is according to the distribution of shapes that is complementary with described manhole cover.
Preferably, described elasticity force aid part is a spring.
A kind of powder jar provided by the invention comprises tank body, and the manhole cover assembly described in the such scheme is installed on the described tank body.
Preferably, described tank body and the welding of described manhole pedestal, described manhole cover flexibly connects by a riser and described tank body.
The beneficial effect that a kind of improved manhole cover assembly that adopts the utility model to provide brings is: (1) is provided with the elasticity force aid part on manhole cover and/or manhole pedestal, such as spring, an end is fixed, and the other end acts on manhole cover and/or the manhole pedestal.After manhole cover and manhole pedestal covered, the elasticity force aid part was compressed, and when manhole cover was opened, the elastic force of the elasticity force aid part jack-up manhole cover that can make progress was for the unlatching of manhole cover provides power-assisted.More easy to operately when personnel are opened open, reduce labour intensity, increase work efficiency.(2) in first embodiment, the elasticity force aid part is located on the manhole pedestal, and a plurality of elasticity force aid part is spaced apart, and the circular distribution that is complementary according to the shape with the manhole cover circle.The better effects if of more even, the jack-up of application force when opening.(3) in the 3rd embodiment, be equipped with the elasticity force aid part on manhole pedestal and the manhole cover, these elasticity force aid part each intervals and according to the distribution of shapes of manhole cover.Owing to all be provided with the elasticity force aid part on two parts, when opening, elastic acting force is the twocouese effect, the power-assisted better effects if of unlatching.(4) the elasticity force aid part adopts spring, the elasticity force aid part is located at the upper end of manhole pedestal and/or the bottom of manhole cover, only need in the upper end of manhole pedestal and/or the bottom of manhole cover is left blind hole and got final product, can not do other changes to the manhole pedestal and the manhole cover of existing structure, can realize changing on existing manhole cover assembly, extensibility and applicability are good.
A kind of powder jar that adopts the utility model to provide because of having above-mentioned manhole cover assembly, thereby makes the powder jar at when filling with substance, and manipulation strength reduces, the efficient raising.
Description of drawings
Fig. 1 is among first embodiment, and the manhole cover assembly is installed on the cutaway view on the powder jar, and emphasis illustrates the structure that elastic reset spare is installed on the manhole pedestal.
Fig. 2 is the partial enlarged drawing of a-quadrant among Fig. 1.
Fig. 3 is the plan structure figure of manhole cover assembly.
The specific embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1 to Figure 3, first embodiment that provides for the utility model.A kind of improved manhole cover assembly comprises manhole pedestal 13, is placed on the manhole cover 3 on the described manhole pedestal 13, and described manhole pedestal 13 is provided with elasticity force aid part 5, and an end of described elasticity force aid part 5 is fixed, the other end acts on described manhole cover 3.
In the present embodiment, described elasticity force aid part 5 is a plurality of, and spaced apart.Fig. 1 is a cutaway view, and this hatching line position only illustrates elasticity force aid part 5 structures.On the circumference of its manhole pedestal 13 at interval be distributed with a plurality of elasticity force aid parts 5.Elasticity force aid part 5 in the present embodiment is a spring.In manhole pedestal 13 upper ends, have a plurality of blind holes 6 at interval, a plurality of blind holes 6 according to the circular distribution of shape of circular manhole cover 3 couplings, in each blind hole 6, be provided with elasticity force aid part 5, being screwed into blind hole 6 by socket bolt fixes an end of elasticity force aid part 5, the other end of elasticity force aid part 5 stretches out blind hole 6, and is corresponding with manhole cover 3, acts on manhole cover 3.When manhole cover 3 covered, downwards elasticity of compression force aid part 5 made its reduced overall in blind hole 6, and upwards effect, jack-up manhole cover 3 of elasticity force aid part 5 when opening is for opening of manhole cover 3 provides power-assisted.
In the present embodiment, in open-blind hole, the upper end of manhole pedestal 13 6, elastic reset spare 5 is located in the blind hole 6, and is directly corresponding with manhole cover 3.Blind hole 6 is located at this position, manhole cover 3 is when covering and open, and elastic reset spare 5 can directly act on manhole cover 3, and manhole cover 3 directly is compressed into elastic reset spare 5 in the blind hole 6 when covering, existing manhole cover structure is not brought other any changes, do not influence covering of manhole cover 3 yet.As on the inner hole wall of elastic reset spare 5 being located at manhole pedestal 13 or on the outer wall, then need to be provided with in addition the fixedly mechanism of elastic reset spare, as permanent seat etc.It is complicated that structure shows slightly, but also can realize.Here no longer describe in detail.
As shown in Figure 1 to Figure 3, rotary handle 1 is connected with guide rod 12 by straight pin, and guide rod 12 and platen 2 are by being threaded, and guide rod 12 front ends are by the openings of manhole cover 3, and keep certain down suction, for driving, handle 1 flows out the formation distance when guide rod 12 rotates up and down.Guide rod 12 rear ends adopt nut to connect and spot welding is fixed.Pressing plate 10 is connected with riser 14 on being welded on tank body 7 by straight pin; Handle 9 adopts on manhole cover 3 and is welded to connect.Safety lock 8 is connected with riser 14 on being welded on tank body 7 by straight pin.The manhole cover assembly is divided into sealing state and opening when operation:
(1) sealing state: manhole cover 3 is under the unlatching situation at contact condition, safety lock 8 with tank body 7, simultaneously manhole cover 3 is applied under certain precompressed compression effect, to manhole cover 3 center positions, rotary pressure plate 10 is close to manhole cover 3, rotary handle 1 from the conter clockwise end position to clickwise until platen 2 clamping platens 10, buckle the sealing that safety lock 8 is realized manhole covers.
(2) opening: open safety lock 8, rotary handle 1 is done left-hand revolution and is broken away from pressing plate 10 up to platen 2, and from the vertical outwards rotary pressure plate 10 of manhole cover 3 center positions, then elasticity force aid part 5 is upspring.Hand-held handle 9 is under the support of swing type mechanism 11, and translation rotation manhole cover 3 and connection handle 1 and platen 2 are thereon realized the unlatching of manhole cover 3.Adopt elasticity force aid part 5 elastic force augmented thrusts in this process, can effectively reduce labour intensity, realize quick opening process.
In second embodiment that the utility model provides, only be that with the difference of first embodiment described elasticity force aid part 5 is located on the described manhole cover 3, an end is fixed, the other end acts on described manhole pedestal 13.Compare first embodiment, this embodiment is located at elasticity force aid part 5 on the manhole cover 3, and when opening manhole cover 3, elasticity force aid part 5 leans manhole pedestal 13.
In the 3rd embodiment that the utility model provides, only be with the difference of the foregoing description, described elasticity force aid part 5 is located at respectively on described manhole pedestal 13 and the manhole cover 3, be located at that described elasticity force aid part 5 one ends on the described manhole pedestal 13 are fixed, the other end acts on described manhole cover 3, be located at that described elasticity force aid part 5 one ends on the described manhole cover 3 are fixed, the other end acts on described manhole pedestal 13.Compare first embodiment and second embodiment, the 3rd embodiment is equipped with the elasticity force aid part on manhole cover 3 and manhole pedestal 13.Alternate intervals distributes each other, and the power of both direction has been gathered in the effect of elasticity force aid part 5, power-assisted better effects if during unlatching.
In the 3rd embodiment that the utility model provides, only be with the difference of the foregoing description, have groove on the body of described manhole pedestal 13 or on the body of manhole cover 3, described elasticity force aid part 5 is an arc spring lamination, described arc spring lamination is arranged in described groove, and the curved portions of described arc spring lamination is stretched out described groove.Manhole cover 3 closed types are compressed described arc spring lamination, and when opening manhole cover 3, arc spring lamination leans manhole cover, provides power-assisted for opening.
The utility model as shown in Figure 7, also provides a kind of powder jar except above-mentioned manhole cover assembly is provided, comprise tank body 7, and the manhole cover assembly described in above-mentioned each embodiment is installed on the described tank body 7.Described tank body 7 and described manhole pedestal 13 welding.Described manhole cover 3 flexibly connects by a riser 14 and described tank body 7.Fig. 7 is powder jar local structure figure, because the powder jar is a technology well known in the art, its structure also is well known to those skilled in the art, improvement of the present utility model also only is to be equipped with the manhole cover assembly, so Fig. 1 only provides the part-structure figure that shows the manhole cover assembly, does not realize the desired powder jar of the utility model but do not influence those skilled in the art.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.