CN204199329U - Shock reducing type well lid - Google Patents

Abstract

The utility model discloses a vibration-damping well cover, which comprises a cover base and a cover body. The inner wall of the cover base forms a step structure, and the step structure at least includes a first step and a second step. Damping device; the damping device includes a damping sleeve, an upper damping cover and a lower damping cover set outside the damping sleeve, the damping sleeve is hollow to form a connecting hole and the outer wall extends outward to form an upper limit portion and a lower limit portion; The connecting piece passes through the connection hole to fix the shock absorbing sleeve on the bottom of the cover, and the upper shock absorbing cover is pressed and fixed between the upper limit part and the cover; A damping body, the lower damping cover is pressed and fixed between the first damping body and the lower limit part; the lower damping cover is supported by its periphery so that the damping sleeve is suspended from the surface of the first step; the utility model can Enhance the vibration damping performance between the cover body and the cover seat, effectively relieve the impact force when the vehicle passes by, and reduce the collision noise between the cover body and the cover seat.

Description

Vibration-absorbing manhole cover

technical field

The utility model relates to a well cover, in particular to a vibration-damping well cover.

Background technique

Manhole covers are very common in daily life. They are mainly used to cover the openings of various pipelines on the ground. In order to ensure the normal passage of pedestrians and vehicles on the road, these openings need to be covered with manhole covers with a certain strength to close them; the existing manhole covers It is mainly made of cast iron, and generally includes a cover seat fixed at the opening and a cover body linked to the cover seat to close the opening; when a vehicle passes by the manhole cover, the cover body is prone to beating due to a large impact force, There is often a loud collision sound between the cover body and the cover seat. This noise not only affects the production and life of the nearby people, but also makes the driver have greater concerns and affects driving safety.

Therefore, there is a need for a vibration-absorbing manhole cover, which can enhance the damping performance between the cover body and the cover seat, effectively alleviate the impact force when the vehicle passes by, and reduce the collision noise between the cover body and the cover seat, so as not to affect the nearby people. Production and life, and ensure driving safety.

Utility model content

In view of this, the purpose of this utility model is to provide a vibration-damping well cover, which can enhance the vibration-damping performance between the cover body and the cover base, effectively alleviate the impact force when the vehicle passes by, and reduce the vibration between the cover body and the cover base. Collision noise, so as not to affect the production and life of nearby people, and ensure driving safety.

The vibration-damping well cover of the utility model includes a cover base and a cover body, the inner wall of the cover base forms a stepped structure, and the step structure includes at least one step opposite to the bottom of the cover body and two steps for placing the cover body Steps, a vibration damping device is provided between the cover and the first step; the vibration damping device includes a vibration damping sleeve and an upper vibration damping cover and a lower vibration damping cover set outside the vibration damping sleeve. The vibration-damping sleeve is hollow to form a connection hole and the outer wall extends outward to form an upper limit portion for blocking the upper vibration-damping cover and a lower limit portion for blocking the lower vibration-damping cover; the connecting piece passes through the connection hole to fix the vibration-damping sleeve At the bottom of the cover, the upper vibration-damping cover is fixed between the upper limit portion and the cover body; a first vibration-absorbing body capable of axial expansion and contraction is provided between the upper limit portion and the lower limit portion, and the The lower vibration-damping cover is pressed and fixed between the first vibration-damping body and the lower limit portion; the lower vibration-damping cover is supported by its periphery so that the vibration-damping sleeve is suspended from the surface of the first step.

Further, the bottom of the cover body extends downwards to form a shoulder structure matched with the second step, the shoulder rests on the second step, and an "L" shaped relief is provided between the shoulder and the second step. vibration pad.

Further, a second damping body is provided between the upper damping cover and the lower damping cover.

Furthermore, both the upper vibration-damping cover and the lower vibration-damping cover are in the shape of an inverted bowl.

Further, the first damping body is a compression spring.

Further, the second damping body is an elastic rubber block.

Further, the connecting holes are screw holes, and the connecting parts are fastening bolts.

Further, the cover body is in the shape of a round pie, and at least three damping devices are evenly distributed along the circumference of the cover body.

Beneficial effects of the utility model: The vibration-damping well cover of the utility model can effectively enhance the vibration-damping performance between the cover body and the cover seat by adding a vibration-damping device. When a vehicle passes by, the impact force is transmitted from the cover body to the Vibration device, the first damping body reduces vibration through telescopic deformation, effectively relieves the impact force when the vehicle passes by, reduces the collision noise between the cover body and the cover seat, so as not to affect the production and life of nearby people, and ensures driving safety .

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is an enlarged view of Fig. 1A.

Detailed ways

Fig. 1 is a schematic structural view of the utility model, and Fig. 2 is an enlarged view of Fig. 1A, as shown in the figure: the vibration-damping well cover of this embodiment includes a cover seat 1 and a cover body 2, and the inner wall of the cover seat 1 A stepped structure is formed, the stepped structure at least includes a first-level step 11 opposite to the bottom of the cover 2 and a second-level step 12 for placing the cover 2, and a vibration-damping device; the damping device includes a damping sleeve 31 and an upper damping cover 32 and a lower damping cover 33 set outside the damping sleeve 31, the damping sleeve 31 is hollow to form a connection hole and the outer wall extends outward Form the upper limit portion 311 for blocking the upper vibration-damping cover 32 and the lower limit portion 312 for blocking the lower vibration-damping cover 33; the connecting piece 34 passes through the connecting hole to fix the vibration-damping sleeve 31 on the bottom of the cover body 2, The upper damping cover 32 is pressed and fixed between the upper limit portion 311 and the cover body 2; between the upper limit portion 311 and the lower limit portion 312, a first shock absorber 35 capable of axial expansion and contraction is provided, so that The lower vibration-damping cover 33 is pressed between the first vibration-damping body 35 and the lower limit portion 312; the lower vibration-damping cover 33 is supported by its periphery so that the vibration-damping cover 31 is suspended from the surface of the first step; Adding a damping device can effectively enhance the damping performance between the cover body 2 and the cover base 1. When a vehicle passes by, the impact force is transmitted from the cover body 2 to the damping device, and the first vibration damping body 35 is reduced by telescopic deformation. Vibration effectively alleviates the impact force when the vehicle passes by, reduces the collision noise between the cover body 2 and the cover seat 1, so as not to affect the production and life of the nearby people, and ensures driving safety; in this embodiment, the connecting hole is Screw holes, the connecting piece 34 is a fastening bolt; the connection is convenient and stable; in this embodiment, the cover 2 is in the shape of a round cake, and at least three uniformly distributed along the circumference of the cover 2 Vibration reduction device.

In this embodiment, the bottom of the cover body 2 extends downwards to form a shoulder structure matched with the second step 12, the shoulder rests on the second step 12, and is between the shoulder and the second step 12 There is an "L"-shaped damping pad 4; the shoulder can be regarded as an inverted step, which is beneficial to maintain a necessary gap between the cover body 2 and the cover base 1 so as to uncover the cover body 2, and is also beneficial to the cover body 2. Fixed; the damping pad 4 can be elastic rubber, and the "L" shape structure is conducive to horizontal and vertical vibration reduction.

In this embodiment, a second damping body 36 is provided between the upper damping cover 32 and the lower damping cover 33, both of the upper damping cover 32 and the lower damping cover 33 are in the shape of an inverted bowl, and the The first damping body 35 is a compression spring, and the second damping body 36 is an elastic rubber block; the bowl-shaped structure makes the upper damping cover 32 and the lower damping cover 33 have a damping property, which improves the anti-vibration effect of the well cover .

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the purpose and scope of the technical solutions of the utility model shall be covered by the claims of the utility model.

Claims (8)

1. A vibration-damping well cover, which includes a cover base and a cover body, is characterized in that: the inner wall of the cover base forms a stepped structure, and the step structure at least includes a first step opposite to the bottom of the cover body and is used for placing The two-stage step of the cover body, a vibration-damping device is provided between the cover body and the first-level step; the vibration-damping device includes a vibration-damping sleeve, an upper vibration-damping cover and a lower vibration-damping cover set outside the vibration-damping sleeve Cover, the vibration-damping sleeve is hollow to form a connection hole and the outer wall extends outward to form an upper limit portion for blocking the upper vibration-damping cover and a lower limit portion for blocking the lower vibration-damping cover; the connecting piece passes through the connection hole to The damping sleeve is fixed on the bottom of the cover, and the upper damping cover is pressed and fixed between the upper limit portion and the cover; a first shock absorber capable of axial expansion and contraction is provided between the upper limit portion and the lower limit portion. body, the lower vibration-damping cover is pressed and fixed between the first vibration-damping body and the lower limit portion; the lower vibration-damping cover is supported by its periphery so that the vibration-damping sleeve is suspended from the surface of the first step. 2. The vibration-damping well cover according to claim 1, characterized in that: the bottom of the cover extends downwards to form a shoulder structure matched with the second step, the shoulder rests on the second step, and An "L"-shaped damping pad is arranged between the shoulder and the second step. 3. The vibration-damping well cover according to claim 1, characterized in that: a second vibration-damping body is arranged between the upper vibration-damping cover and the lower vibration-damping cover. 4. The vibration-damping well cover according to claim 3, characterized in that: both the upper vibration-damping cover and the lower vibration-damping cover are in the shape of an inverted bowl. 5. The vibration-damping well cover according to claim 1, characterized in that: the first vibration-damping body is a compression spring. 6. The vibration-damping well cover according to claim 3, characterized in that: the second vibration-damping body is an elastic rubber block. 7. The vibration-damping well cover according to claim 1, characterized in that: the connecting holes are screw holes, and the connecting parts are fastening bolts. 8. The vibration-damping well cover according to any one of claims 1 to 7, characterized in that: the cover body is in the shape of a round cake, and at least three vibration-damping wells distributed uniformly along the circumference of the cover body are provided. device.