CN210949853U

CN210949853U - Pressure self-sealing device for manhole cover

Info

Publication number: CN210949853U
Application number: CN201921525961.9U
Authority: CN
Inventors: 吴慕中; 周正祥
Original assignee: Taizhou Dongfang New Material Co ltd
Current assignee: Taizhou Dongfang New Material Co ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-07-07
Anticipated expiration: 2029-09-12

Abstract

The utility model belongs to the technical field of the manhole cover, concretely relates to pressure self-sealing device for the manhole cover, which comprises a manhole cover and a manhole seat, wherein a sealing device is arranged in the manhole cover, one side of the manhole cover is connected with the manhole seat through a bolt, the other side of the manhole seat is provided with a locking mechanism, the sealing device comprises a sealing seat and a V-shaped sealing ring, the V-shaped sealing ring is fixed on the sealing seat, the manhole seat is provided with a sealing groove, and the sealing seat is arranged in the sealing groove; the V-shaped sealing ring comprises an upper wing, a lower wing, an inner cambered surface and a straight surface, wherein the upper wing is arranged at the upper end of the straight surface, and the lower wing is arranged at the lower end of the straight surface; the manhole cover is characterized in that a lower abutting surface abutted against the lower wing is arranged on the manhole seat, and an upper abutting surface abutted against the upper wing is arranged on the manhole cover. The pressure self-sealing device of the manhole cover has the advantages of good sealing effect, leakage reduction, convenience in operation, safety and reliability.

Description

Pressure self-sealing device for manhole cover

Technical Field

The utility model belongs to the technical field of the manhole cover, concretely relates to manhole cover pressure is from sealing device.

Background

At present, most of traditional manhole covers adopt a strong pressure type seal or a traditional groove frame type self-sealing structure, and the structure mainly comprises a manhole seat, a manhole cover, a sealing ring, a fastening structure and the like.

The low-pressure sealing performance of the strong-pressure sealing manhole cover is good, but the biggest defects are that the labor intensity is high during operation, the high-pressure sealing capacity is poor, and leakage is easy to occur.

The biggest shortcoming of the traditional tank frame type self-sealing manhole cover is that the tank frame type adopts a Contraband type, the section edge of a tank frame type rubber sealing ring is long, the tank frame type rubber sealing ring is easy to interfere by residual powder of a sealing surface part, the leakage phenomenon is easy to cause under a low-pressure state, and the requirement on the cleanliness of the sealing surface of the manhole is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a manhole cover pressure is from sealing device to solve the technical problem that the manhole cover leads to revealing easily.

In order to solve the technical problem, the utility model provides a manhole cover pressure is from sealing device, including manhole cover and manhole seat, install sealing device in the manhole cover, one side and manhole seat bolted connection of manhole cover, the opposite side of manhole seat is provided with kayser mechanism, characterized by:

the sealing device comprises a sealing seat and a V-shaped sealing ring, the V-shaped sealing ring is fixed on the sealing seat, a sealing groove is formed in the manhole seat, and the sealing seat is arranged in the sealing groove;

the V-shaped sealing ring comprises an upper wing, a lower wing, an inner cambered surface and a straight surface, wherein the upper wing is arranged at the upper end of the straight surface, and the lower wing is arranged at the lower end of the straight surface;

the manhole cover is characterized in that a lower abutting surface abutted against the lower wing is arranged on the manhole seat, and an upper abutting surface abutted against the upper wing is arranged on the manhole cover.

Further: the upper wing comprises an upper inner inclined plane and an upper outer inclined plane, one end of the upper outer inclined plane is connected with one end of the upper inner inclined plane, the other end of the upper outer inclined plane is connected with the upper end of the straight surface, and the other end of the upper inner inclined plane is connected with the upper end of the inner cambered surface;

the lower wing comprises a lower inner inclined plane and a lower outer inclined plane, one end of the lower outer inclined plane is connected with one end of the lower inner inclined plane, the other end of the lower outer inclined plane is connected with the lower end of the straight surface, and the other end of the lower inner inclined plane is connected with the lower end of the inner cambered surface.

Further: the clamping and locking mechanism comprises two supporting plates, a locking shaft and two clamping plates, the two supporting plates are fixed on the outer side wall of the manhole seat, the two supporting plates are symmetrically arranged relative to the axis of the manhole seat, locking grooves are formed in the supporting plates, the two ends of the locking shaft are respectively located in the locking grooves, the two clamping plates are fixed on the manhole cover, the two clamping blocks are symmetrically arranged relative to the axis of the manhole cover, the two clamping blocks are located between the two supporting plates, and the locking shaft is abutted to the supporting plates.

Further: the locking groove comprises a straight groove and an arc groove which are communicated with each other, and the two ends of the locking shaft are respectively provided with a cylindrical surface and a cutting plane which are matched with the straight groove and the arc groove.

Further: the locking shaft is fixedly connected with a handle.

The beneficial effects of the utility model are that, adopted the lower wing and the last wing of V type sealing washer in towards the manhole seat, go up wing and manhole cover butt, lower wing and manhole seat butt for atmospheric pressure in the manhole seat can not outwards reveal, has improved the leakproofness of manhole cover. The inner arc surface has elasticity, so that the upper wing and the lower wing can keep certain shape retention capacity, the lower wing and the upper wing are always abutted against the manhole seat and the manhole cover, the pressure is higher, and the sealing effect is better. The lower wing realizes scraping and sweeping the surface of the manhole seat in the closing process of the manhole cover, and the sealing surface is prevented from being interfered by residual materials. The sealing seat is arranged in the sealing groove, so that the manhole cover is not easy to move transversely in the repeated opening process, and the sealing effect is further improved.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a cross-sectional view of a preferred embodiment of the pressure self-sealing device of the manhole cover of the present invention;

figure 2 is a cross-sectional view of a preferred embodiment of a seal slot of the present invention;

fig. 3 is a cross-sectional view of a preferred embodiment of the sealing device of the present invention;

FIG. 4 is a top view of a preferred embodiment of the pressure self-sealing means of the manhole cover of the present invention;

fig. 5 is a front view of a preferred embodiment of the support plate of the present invention;

fig. 6 is a left side view of a preferred embodiment of the locking shaft of the present invention.

In the figure:

1. a manhole cover; 11. an upper abutting surface; 2. a manhole base; 21. a lower abutting surface; 22. a sealing groove; 3. a V-shaped sealing ring; 31. an upper wing; 311. an upper inner inclined plane; 312. an upper outer inclined plane; 32. a lower wing; 321. a lower inner inclined plane; 322. a lower outer bevel; 33. an intrados surface; 34. a straight surface; 35. a sealing seat; 4. a latch mechanism; 41. a support plate; 42. a locking shaft; 421. a cylindrical surface; 422. cutting a plane; 43. clamping a plate; 5. a locking groove; 51. a straight groove; 52. an arc groove; 6. a handle.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

FIG. 1 is a schematic view of a preferred embodiment of the pressure self-sealing means of the manhole cover of the present invention;

as shown in fig. 1, the present embodiment provides a pressure self-sealing device for a manhole cover, which includes a manhole cover 1 and a manhole seat 2, wherein the manhole cover 1 is provided with a sealing device, one side of the manhole cover 1 is connected to the manhole seat 2 by a bolt, and the other side of the manhole seat 2 is provided with a locking mechanism 4.

Figure 2 is an alternative cross-sectional view of the sealing device of the present invention;

optionally, the sealing device includes a sealing seat 35 and a V-shaped sealing ring 3, one end of the V-shaped sealing ring 3 is fixed on the sealing seat 35, a sealing groove 22 is provided on the manhole seat 2, and the sealing seat 35 is disposed in the sealing groove 22. The sealing groove 22 is arranged, so that the V-shaped sealing ring 3 is not easy to move transversely in the opening or closing process of the manhole cover 1, and the sealing effect is improved.

Fig. 2 is an alternative cross-sectional view of the V-ring 3 of the present invention;

optionally, the V-shaped sealing ring 3 includes an upper wing 31, a lower wing 32, an intrados surface 33, and a straight surface 34. The upper wing 31 and the lower wing 32 are symmetrically disposed at upper and lower ends of the straight surface 34. The manhole base 2 is provided with a lower contact surface 21 which is in contact with the lower wing 32, and the manhole cover 1 is provided with an upper contact surface 11 which is in contact with the upper wing 31. The inner arc surface 33 has elasticity, when the manhole cover 1 is closed, the upper abutting surface 11 presses the upper wing 31 downward, the lower wing 32 abuts against the lower abutting surface 21, the upper wing 31 abuts against the upper abutting surface 11 upward under the elastic restoring force of the inner arc surface 33, and the sealing effect is improved as the pressure of the manhole cover 1 is higher.

Fig. 3 is an alternative cross-sectional view of the upper wing 31 and the lower wing 32 of the present invention;

optionally, the upper wing 31 includes an upper inner inclined surface 311 and an upper outer inclined surface 312, one end of the upper outer inclined surface 312 is connected to one end of the upper inner inclined surface 311, the other end of the upper outer inclined surface 312 is connected to the upper end of the straight surface 34, and the other end of the upper inner inclined surface 311 is connected to the upper end of the inner arc surface 33.

The lower wing 32 includes a lower inner inclined surface 321 and a lower outer inclined surface 322, one end of the lower outer inclined surface 322 is connected with one end of the lower inner inclined surface 321, the other end of the lower outer inclined surface 322 is connected with the lower end of the straight surface 34, and the other end of the lower inner inclined surface 321 is connected with the lower end of the intrados surface 33.

Figure 4 is an alternative front view of the latch mechanism 4 of the present invention;

optionally, the locking mechanism 4 includes two support plates 41, a locking shaft 42 and two clamping plates 43, the two support plates 41 are fixed on the outer side wall of the manhole base 2, and the two support plates 41 are symmetrically arranged about the axis of the manhole base 2. The two clamping plates 43 are fixed on the manhole cover 1, the two clamping plates 43 are symmetrically arranged around the axis of the manhole cover 1, and the two clamping plates 43 are located between the two support plates 41. Two supporting plates 41 are provided with locking grooves 5, the locking shaft 42 is located above the supporting plates 41, and two ends of the locking shaft 42 are located in the locking grooves 5. The locking shaft 42 is fixedly connected with a handle 6, and the handle 6 is convenient to rotate or push the locking shaft 42.

Fig. 5 and 6 are alternative views of the locking shaft 42 and the support plate 41 of the present invention;

optionally, the two ends of the locking shaft 42 are respectively provided with a cylindrical surface 421 and a cut plane 422, the locking groove 5 is provided with an arc groove 52 attached to the cylindrical surface 421 and a straight groove 51 attached to the cut plane 422, and the arc groove 52 is close to the clamping plate 43.

In view of the above, it is desirable to provide,

the sealing locking of the manhole cover 1 and the manhole seat 2 is realized by sliding and rotating the locking shaft 42, namely, after the manhole cover 1 is closed to contact the manhole seat 2, the locking shaft 42 slides to the clamping plate 43 of the manhole cover 1 along the guiding locking groove 5 to be in place, the cylindrical surface 421 is attached to the arc groove 52 through 90-degree rotation of the locking shaft 42, the locking shaft 42 presses the clamping plate 43 of the manhole cover 1, the upper abutting surface 11 of the manhole cover 1 compresses the upper wing 31, the inner arc surface 33 presses the lower wing 32 downwards under the action of elastic force, the lower wing 32 abuts against the lower abutting surface 21, the closing and locking operations of the manhole cover 1 can be completed, and the whole process is integrated into one body, pushes and rotates one body, and is finished at one stroke. When the manhole cover 1 is opened, the locking shaft 42 is reversely rotated, the locking shaft 42 is pulled, the locking shaft 42 slides in the straight groove 51, the locking shaft 42 is prevented from contacting the clamping plate 43, then the bolt on the other side of the manhole cover 1 is loosened, and the manhole cover 1 can be completely opened. In the process of opening or closing the manhole cover 1, the sealing seat 35 is arranged in the sealing groove 22, so that the V-shaped sealing ring 3 cannot move, the sealing performance of the manhole cover 1 is improved, and the sealing performance is better as the pressure is higher.

All the parts of the devices selected in the present application are general standard parts or parts known to those skilled in the art, and the structures and principles thereof can be known to those skilled in the art through technical manuals or through routine experimental methods.

In the description of the embodiments of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; either mechanically or electrically. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways, and the above-described apparatus embodiments are merely illustrative.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a manhole cover pressure is from sealing device, includes manhole cover (1) and manhole seat (2), install sealing device in manhole cover (1), one side and manhole seat (2) bolted connection of manhole cover (1), the opposite side of manhole seat (2) is provided with kayser mechanism (4), characterized by:

the sealing device comprises a sealing seat (35) and a V-shaped sealing ring (3), the V-shaped sealing ring (3) is fixed on the sealing seat (35), a sealing groove (22) is formed in the manhole seat (2), and the sealing seat (35) is arranged in the sealing groove (22);

the V-shaped sealing ring (3) comprises an upper wing (31), a lower wing (32), an inner arc surface (33) and a straight surface (34), wherein the upper wing (31) is arranged at the upper end of the straight surface (34), and the lower wing (32) is arranged at the lower end of the straight surface (34);

the manhole seat (2) is provided with a lower abutting surface (21) abutting against the lower wing (32), and the manhole cover (1) is provided with an upper abutting surface (11) abutting against the upper wing (31).

2. A manhole cover pressure self-sealing device according to claim 1, wherein:

the upper wing (31) comprises an upper inner inclined surface (311) and an upper outer inclined surface (312), one end of the upper outer inclined surface (312) is connected with one end of the upper inner inclined surface (311), the other end of the upper outer inclined surface (312) is connected with the upper end of the straight surface (34), and the other end of the upper inner inclined surface (311) is connected with the upper end of the inner arc surface (33);

the lower wing (32) comprises a lower inner inclined surface (321) and a lower outer inclined surface (322), one end of the lower outer inclined surface (322) is connected with one end of the lower inner inclined surface (321), the other end of the lower outer inclined surface (322) is connected with the lower end of the straight surface (34), and the other end of the lower inner inclined surface (321) is connected with the lower end of the inner arc surface (33).

3. A manhole cover pressure self-sealing device according to claim 1, wherein:

the locking mechanism (4) comprises two supporting plates (41), a locking shaft (42) and two clamping plates (43), the two supporting plates (41) are fixed on the outer side wall of the manhole seat (2), the two supporting plates (41) are symmetrically arranged relative to the axis of the manhole seat (2), locking grooves (5) are formed in the supporting plates (41), the two ends of the locking shaft (42) are respectively located in the locking grooves (5), the two clamping plates (43) are fixed on the manhole cover (1), the two clamping blocks are symmetrically arranged relative to the axis of the manhole cover (1), the two clamping blocks are located between the two supporting plates (41), and the locking shaft (42) is abutted against the supporting plates (41).

4. A manhole cover pressure self-sealing device according to claim 3, wherein:

the locking groove (5) comprises a straight groove (51) and an arc groove (52) which are communicated with each other, and the two ends of the locking shaft (42) are respectively provided with a cylindrical surface (421) and a tangent plane (422) which are matched with the straight groove (51) and the arc groove (52).

5. A manhole cover pressure self-sealing device according to claim 3, wherein:

the locking shaft (42) is fixedly connected with a handle (6).