CN2853908Y

CN2853908Y - Anti-theft manhole cover with spring

Info

Publication number: CN2853908Y
Application number: CN 200520127632
Authority: CN
Inventors: 王贵章; 刘广金
Original assignee: HENGFENG CASTING CO Ltd BAODING
Current assignee: HENGFENG CASTING CO Ltd BAODING
Priority date: 2005-09-30
Filing date: 2005-09-30
Publication date: 2007-01-03
Anticipated expiration: 2015-09-30

Abstract

A spring anti-theft well cover comprises a well cover, a well base, a closing piece and a spring arm, wherein the well cover drops in the well base, the perimeter of the well base is arranged with a connecting base, the perimeter of the well cover is provided with a protuberant connecting table, the well base is connected with the well cover through a closing piece, the spring arm is fixed on the well cover, and the well base is equipped with a notch. The well cover is integrated with the well base to prevent moving; the well cover is hard to be cut, thereby preventing stealing; and the product is easy to open. The springs equipped under the well cover are poured with the well cover together, and the well cover with excellent extensibility knocks the notch on the well base to lock. The method overcomes the problems of horizontal displacement, vertical jumping and noise. The well cover is not easy to open, which can only be conveniently opened with special tools, and is not easy to dislocate and lose.

Description

The spring anti-stealing manhole cover

Technical field

The utility model relates to a kind of urban ground communal facility, particularly a kind of underground job well well lid.

Background technology

At present, cities and towns upper and lower water course, cable trench etc. all are provided with vertical shaft, and cover thereon with well lid, and the underground job well well lid of use mostly is the cast iron manufacturing.In recent years, stolen phenomenon often takes place, especially the phenomenon of combination area of city and country's theft well lid is even more serious.Not only cause the direct losses of well lid quilt lid also easily to cause to hurt sb.'s feelings and ruined the car accident.Well lid commonly used is made up of two parts, is divided into well seat and well lid, and the well seat has a seam, and well lid covers thereon, and the two does not have any coupling components, only needs the instrument with buckle, upwards mentions promptly separable in the insertion well lid hole.It is antitheft that the employing chain lock that also has hitches the way of well lid and well seat, but use big iron shears to be easy to cut off chain lock, steals well lid.Simultaneously, the well lid of laying on the highway can produce serious displacement and jump sound under the composite factor influence that is subjected to car speed and bearing pressure.

The utility model content

The purpose of this utility model just is: provide a kind of product theftproof performance good, and the spring anti-stealing manhole cover that need are just opened with special tool, simultaneously, this product can not produce displacement yet and jump the problem of sound.

For solving the problems of the technologies described above, technical scheme provided by the utility model is:

A kind of spring anti-stealing manhole cover comprises well lid, well seat, and well lid falls in the well seat seam, also comprise lock dog and rubber-like spring arm, described well seat periphery is provided with Connection Block, and the corresponding connection platform that is provided with to outer lug is gone up in the well lid periphery outside, and well lid and well seat flexibly connect by lock dog; Described spring arm is fixed in well lid, is provided with groove with the corresponding position of spring arm on the well seat.

Described well lid connection platform and lock dog are hinged, and described well seat Connection Block and lock dog are hinged.

Described well lid connects platform and is provided with the strip spacing hole, and bearing pin passes the spacing hole that connects platform, and the two ends of bearing pin are fixed on the Connection Block.

Described lock dog is provided with the strip spacing hole, and spacing hole is positioned at lock dog and Connection Block junction, and bearing pin passes spacing hole, and the two ends of bearing pin are fixed on the Connection Block.

Described spring arm has some, is uniformly distributed in the well lid periphery, and spring arm the inner is fixed on the well lid, and the outer end is unsettled.

Described spring arm is an arc.

Also comprise an interior shockproof rubber coil of cannelure that is bumped into well seat mouth.

According to the technical scheme that the utility model provides, it has following advantage with respect to prior art:

This product well lid and well seat are connected as a single entity, anti-displacement; Be difficult for cutting off well lid, antitheft; Easily open.Several sets of springs and well lid one moulding by casting are set in the well lid bottom surface, utilize the good extensibility and the locking of the bump of the detent on the well seat of well lid material, the method biggest advantage is thoroughly to have overcome horizontal movement, vertical jitter and soniferous problem.This device well lid is not directly opened, is difficult for dislocation, is difficult for losing and only utilizes special tool could make things convenient for the advantage of opening.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and embodiments:

Fig. 1 is the open mode figure of the utility model embodiment one;

Fig. 2 is the open mode part sectioned view of the utility model embodiment one;

Fig. 3 is the lock dog stereogram of the utility model embodiment one;

Fig. 4 is the closure state sectional view of the utility model embodiment one;

Fig. 5 is the open mode figure of the utility model embodiment two;

Fig. 6 is the open mode part sectioned view of the utility model embodiment two;

Fig. 7 is the lock dog stereogram of the utility model embodiment one.

The figure number explanation:

1 well lid 11 connects platform 12 spacing holes

2 well seats, 21 Connection Blocks, 22 grooves

31 bearing pins, 32 bearing pins, 4 lock dogs

5 spring arms, 61 spacing holes, 62 spacing holes

The specific embodiment

A kind of spring anti-stealing manhole cover, as shown in Figure 1, comprise well lid 1, well seat 2, well lid 1 falls in well seat 2 seams, also comprise lock dog 4 and rubber-like spring arm 5, described well seat 2 peripheries are provided with Connection Block 2, and the corresponding connection platform 11 that is provided with to outer lug is gone up in the well lid 1 periphery outside, it is hinged with lock dog 4 that described well lid connects platform 11, and described well seat Connection Block 21 is hinged with lock dog 4.Spring arm 5 is fixed in well lid 1, is provided with groove 22 with the corresponding position of spring arm on the well seat 2.

In the present embodiment, well lid connects platform 11 and is provided with strip spacing hole 61, and as Fig. 2, shown in Figure 6, bearing pin 31 passes the spacing hole 61 that connects platform 11, and the two ends of bearing pin 31 are fixed on the Connection Block 21.Spring arm 5 is a circular arc, has 3, is uniformly distributed in the well lid periphery, and spring arm 5 the inners are fixed on the well lid 1, and is outside unsettled.Also include the shockproof rubber coil (not shown), shockproof rubber coil is bumped in the annular shape groove of well seat mouth.

Above embodiment is only for the usefulness that the utility model is described, but not to restriction of the present utility model, person skilled in the relevant technique, under the situation that does not break away from spirit and scope of the present utility model, can also make various conversion or variation, as lock dog described in the utility model, at least can adopt as 3 and Fig. 7 as shown in two kinds of forms, and the spring arm described in the utility model also can adopt semicircle, arc or ellipse arc etc., in a word, contract as long as can reliably finish, can reach the purpose of this utility model along well lid radial direction bullet.Therefore, all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.

Below for two kinds of embodiment of the present utility model.

Embodiment does not establish spacing hole just like Fig. 1, Fig. 2 and shown in Figure 4 on the lock dog 4, Connection Block 21 middle parts are platform, and the lock dog upset is placed on the platform.

Embodiment two is as Fig. 5, shown in Figure 6.Lock dog 4 is provided with strip spacing hole 62, as shown in Figure 7.Spacing hole 62 is positioned at lock dog 4 and Connection Block 21 junctions, and bearing pin 32 passes spacing hole 62, and the two ends of bearing pin 32 are fixed on the Connection Block 21.Well lid 1 when rotated, lock dog 4 moves up and down in the slideway on the well seat 2, the bearing pin 32 that is fixed on the well seat Connection Block 21 is limiting lock dog 4 movement positions.

When well lid was closed, as shown in Figure 2, well lid 1 fell in the well seat seam, and well lid 1 is difficult for being subjected to displacement, and the weldering of bearing pin 32 two ends is dead, and well lid 1 is buried in underground, and it is thick and heavy to connect platform 11, and the robber is set about nowhere.

The well lid pressure-bearing adopts ductile cast iron material to make in the present embodiment, is mainly and prevents that road roller rolls the fragmentation that causes back and forth when transportation, loading and unloading and road surface pavement; Utilize nodular cast iron to have good tensile strength and elongation per unit length simultaneously, on well lid, designed 3 equally distributed spring arms, utilize the casting and pouring technology to make spring arm and well lid form one.On well seat sidewall, be uniform-distribution with 3 grooves that have certain angle.Article 3, the diameter between spring arm contact point distance is all the time greater than diameter distance between 3 grooves of well seat, and during closure, the spring arm on the well lid tightly snaps in the well seat like this, and the well seat that has shockproof rubber coil and the face of taking a seat of well lid are closely contacted.

Claims

1, a kind of spring anti-stealing manhole cover, comprise well lid, well seat, well lid falls in the well seat seam, it is characterized in that: also comprise lock dog and rubber-like spring arm, described well seat periphery is provided with Connection Block, the corresponding connection platform that is provided with to outer lug is gone up in the well lid periphery outside, and well lid and well seat flexibly connect by lock dog; Described spring arm is fixed in well lid, is provided with groove with the corresponding position of spring arm on the well seat.

2, spring anti-stealing manhole cover as claimed in claim 1 is characterized in that: described well lid connection platform and lock dog are hinged, and described well seat Connection Block and lock dog are hinged.

3, spring anti-stealing manhole cover as claimed in claim 1 is characterized in that: described well lid connects platform and is provided with the strip spacing hole, and bearing pin passes the spacing hole that connects platform, and the two ends of bearing pin are fixed on the Connection Block.

4, spring anti-stealing manhole cover as claimed in claim 1 or 2, it is characterized in that: described lock dog is provided with the strip spacing hole, and spacing hole is positioned at lock dog and Connection Block junction, and bearing pin passes spacing hole, and the two ends of bearing pin are fixed on the Connection Block.

5, spring anti-stealing manhole cover as claimed in claim 1, it is characterized in that: described spring arm has some, is uniformly distributed in the well lid periphery, and spring arm the inner is fixed on the well lid, and the outer end is unsettled.

6, spring anti-stealing manhole cover as claimed in claim 1 is characterized in that: described spring arm is an arc.

7, spring anti-stealing manhole cover as claimed in claim 1 is characterized in that: also comprise an interior shockproof rubber coil of cannelure that is bumped into well seat mouth.