Inspection well cover

Abstract

The utility model relates to municipal engineering, and discloses an inspection well cover which comprises a well seat, a cover body and at least one C-shaped jumping spring arm. In the closing and opening process of the cover body, the second end of the C-shaped bouncing spring arm abuts against the end, away from the inner wall of the well base, of the buckle, and under the action of component force, the elasticity of the C-shaped bouncing spring arm is overcome, so that the second end of the C-shaped bouncing spring arm moves. The well cover has the advantages that after the cover body is closed, the second end of the C-shaped jumping spring arm and the end, away from the inner wall of the well base, of the buckle are matched for limiting, and the closed state of the cover body is more stable.

Description

Technical Field

[0001] The utility model relates to municipal engineering, in particular to a manhole cover. Background Art

[0002] A manhole cover generally includes a manhole seat and a cover body. The manhole seat is installed at the manhole mouth, and the cover body is connected to the manhole seat. At present, the cover body can generally be directly covered on the manhole seat, or it can be hinged to the manhole seat through a hinge. The cover is also generally provided with a waist-shaped through groove, which is used to open the cover body with a crowbar. In the existing manhole covers, there is a lack of a limiting structure between the cover body and the manhole seat to keep the cover body closed, and the closed state of the cover body is unstable. Utility Model Content

[0003] The present application provides a manhole cover that can solve the problems raised in the background technology.

[0004] In the present application, a manhole cover is provided, comprising

[0005] A well seat, the inner edge of which is provided with a hinge position and at least one buckle;

[0006] The cover body has a reinforcing rib structure on its inner side, dividing the inner side into a plurality of first areas in a circular array; one of the first areas has a hinge hinged to the well seat; when the cover body is in a closed state, each buckle corresponds to a remaining first area, and the edge positions of these first areas are all provided with a raised first blocking block;

[0007] At least one C-type beating spring arm, each of which has a first end as a connection position and a second end as a block that fits into the buckle; the number of the C-type beating spring arms is the same as the buckle, and they are respectively connected to the first area corresponding to the buckle, and the outer wall close to the second end is pressed against the first blocking block under the elastic action of the C-type beating spring arm itself.

[0008] Furthermore, there is one buckle, which is opposite to the hinged position of the well seat, and the cover body is also radially provided with a sliding groove on the first area corresponding to the buckle, and the first blocking block is slidably connected in the sliding groove.

[0009] Furthermore, it also includes a driving mechanism; the reinforcing rib structure divides the inner side surface of the manhole cover into a second area in the middle of multiple first areas; the driving mechanism is arranged in the second area, driving the second ends of all the C-shaped jumping spring arms to move to a position where they can be separated from the buckle.

[0010] Furthermore, the driving mechanism includes a winding roller and at least one connecting rope; the winding roller is rotatably connected to the second area, the number of connecting ropes is equal to the C-type beating spring arms, one end is connected to the winding roller, and the other end is connected to the second end of the corresponding C-type beating spring arm.

[0011] Furthermore, the winding roller is also provided with an insertion hole at one end of the outer side surface of the cover body; the insertion hole includes a circular groove and a first waist-shaped through groove connected to the circular groove, and the circular groove is also provided with two first blocking blocks staggered with the first waist-shaped through groove.

[0012] Furthermore, a first waist-shaped through groove is arranged on the outer side surface of the first blocking block.

[0013] In summary, in the present application, a manhole cover comprises a manhole seat, a cover body and at least one C-type jumping spring arm. During the closing and opening process of the cover body, the second end of the C-type jumping spring arm and the end of the buckle away from the inner wall of the manhole seat will abut against each other, and under the action of the component force, the elasticity of the C-type jumping spring arm itself is overcome, so that the second end of the C-type jumping spring arm moves. The beneficial effect is that after the cover body is closed, the second end of the C-type jumping spring arm and the end of the buckle away from the inner wall of the manhole seat cooperate to limit, and the closed state of the cover body is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0015] Figure 1 It is a schematic diagram of a structure in which a plurality of C-type jumping spring arms are provided;

[0016] Figure 2 It is a schematic diagram of a structure with one C-type jumping spring arm;

[0017] Figure 3 for Figure 2 A magnified schematic diagram of part A;

[0018] Figure 4 is a schematic diagram of the driving mechanism;

[0019] Figure 5 is a schematic diagram of the jack;

[0020] Figure 6 for Figure 5 Schematic diagram of the enlarged portion B.

[0021] In the figure,

[0022] 1. Well seat; 1a. Buckle;

[0023] 2. Cover body; 2a. Reinforcement rib structure; 2b. First area; 2b1. First blocking block; 2b1a. First waist-shaped through groove; 2b2. Sliding groove; 2c. Second area;

[0024] 3. C-type jumping spring arm;

[0025] 4. Driving mechanism; 4a. Winding roller; 4b. Connecting rope; 4c. Cylindrical block; 4c1. First block; 4c2. Second block; 4d. Insertion hole; 4d1. Second waist-shaped through groove; 4d2. Circular groove; 4d2a. Second blocking block. DETAILED DESCRIPTION

[0026] The following is further explained in conjunction with the accompanying drawings. Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] See also Figure 1 A manhole cover comprises a manhole seat 1, a cover body 2 and at least one C-shaped jumping spring arm 3.

[0028] The inner edge of the well seat 1 is provided with a hinge position and at least one buckle 1a. The hinge position is used for subsequent hinge connection of the cover 2, and the end of the buckle 1a away from the inner wall of the well seat 1 is triangular, that is, the top and bottom surfaces of the end are inclined.

[0029] A reinforcing rib structure 2a is provided on the inner side of the cover body 2. The reinforcing rib structure 2a divides the inner side into a plurality of first areas 2b in a circular array. One of the first areas 2b has a hinge hinged to the well seat 1, that is, through the hinge, the cover body 2 can be closed and opened relative to the well seat 1. When the cover body 2 is in the closed state, each buckle 1a corresponds to a remaining first area 2b, and the edge positions of these first areas 2b are all provided with first blocking blocks 2b1 protruding relative to the inner side of the cover body 2.

[0030] The number of C-type beating spring arms 3 is the same as that of the buckle 1a, and they are respectively connected to the first area 2b corresponding to the buckle 1a. The first end of each C-type beating spring arm 3 is the connection position, that is, when the C-type beating spring arm 3 is connected to the corresponding first area 2b, only the first end and the first area 2b are welded and fixed. The second end of each C-type beating spring arm 3 is a block that fits into the buckle 1a, that is, the block is triangular like the end of the buckle 1a away from the inner wall of the well seat 1, and the top surface and the bottom surface are both inclined. Under the elastic action of the C-type beating spring arm 3 itself, the outer wall of the C-type beating spring arm 3 close to the second end abuts against the first blocking block 2b1, and at this time, the second end of the C-type beating spring arm 3 overlaps with the end of the buckle 1a away from the inner wall of the well seat 1.

[0031] In this way, during the process of closing and opening the cover body 2, the second end of the C-shaped beating spring arm 3 and the end of the buckle 1a away from the inner wall of the well seat 1 will be pressed against each other. Under the action of the component force, the elasticity of the C-shaped beating spring arm 3 itself is overcome, so that the second end of the C-shaped beating spring arm 3 moves.

[0032] See also Figure 2 and Figure 3 Optionally, there is one buckle 1a, and correspondingly, there is also one C-type jumping spring arm 3. The position of the buckle 1a on the well seat 1 is opposite to the hinge position of the well seat 1. The cover body 2 is further provided with a slide groove 2b2 in the radial direction on the first area 2b corresponding to the buckle 1a, and the first blocking block 2b1 is slidably connected in the slide groove 2b2. That is, under the elastic action of the C-type jumping spring arm 3 itself, the outer wall of the C-type jumping spring arm 3 close to the second end abuts against the first blocking block 2b1, and the first blocking block 2b1 abuts against the inner wall of the slide groove 2b2.

[0033] In this way, when the cover body 2 is in the closed state, the first blocking block 2b1 can be moved from the outer side of the cover body 2 to overcome the elasticity of the C-type beating spring arm 3 itself, so that the second end of the C-type beating spring arm 3 moves, releases the cooperation between the C-type beating spring arm 3 and the buckle 1a, and opens the cover body 2.

[0034] Furthermore, a first waist-shaped through groove 2b1a is provided on the outer side of the first blocking block 2b1. That is, when using a crowbar to open the cover 2, the inverted T-shaped end of the crowbar is inserted into the first waist-shaped through groove 2b1a, and then the crowbar is rotated 90 degrees. The moving crowbar can move with the first blocking block 2b1, driving the second end of the C-shaped jumping spring arm 3 to move to a position where it can be separated from the buckle 1a, and the cover 2 can be opened by pulling the crowbar.

[0035] See also Figure 4Optionally, the manhole cover further includes a driving mechanism 4. The reinforcing rib structure 2a divides the inner side surface of the manhole cover into a second area 2c in the middle of the plurality of first areas 2b. The driving mechanism 4 is disposed in the second area 2c, and drives the second ends of all C-shaped jumping spring arms 3 to move to a position where they can be separated from the buckle 1a.

[0036] Further, the driving mechanism 4 includes a winding roller 4a and at least one connecting rope 4b. The winding roller 4a is rotatably connected to the second area 2c. Specifically, a step-shaped through hole can be provided on the second area 2c, and a bearing seat is fixedly connected in the through hole. The rotating shaft of the winding roller 4a is fixedly connected to the inner ring of the bearing seat. The number of connecting ropes 4b is equal to the C-type jumping spring arm 3, one end of which is connected to the winding roller 4a, and the other end is connected to the second end of the corresponding C-type jumping spring arm 3. That is, when the outer wall of the C-type jumping spring arm 3 close to the second end abuts against the first blocking block 2b1, the connecting rope 4b is straight. The winding roller 4a is rotated to wind up several connecting ropes 4b at the same time, driving the second ends of all C-type jumping spring arms 3 to move to a position where they can be separated from the buckle 1a; the winding roller 4a is loosened, and under the elastic action of the C-type jumping spring arm 3 itself, the second end of the C-type jumping spring arm 3 is reset, and the connecting rope 4b is straightened again.

[0037] See also Figure 5 Furthermore, the winding roller 4a is provided with an insertion hole 4d at one end of the outer side surface of the cover body 2. The insertion hole 4d includes a circular groove 4d2 and a second waist-shaped through groove 4d1 connected to the circular groove 4d2, and the circular groove 4d2 also has two second blocking blocks 4d2a staggered from the second waist-shaped through groove 4d1. Specifically, a cylindrical block 4c is fixedly connected to the other end of the rotating shaft of the winding roller 4a, and the cylindrical block 4c includes a first block 4c1 fixedly connected to the rotating shaft and a second block 4c2 detachably fixedly connected to the first block 4c1, the circular groove 4d2 is provided on the first block 4c1, and the second waist-shaped through groove 4d1 is provided on the second block 4c2. That is, when using a crowbar to open the cover body 2, the inverted T-shaped end of the crowbar is passed through the second waist-shaped through groove 4d1 and into the circular groove 4d2, and then the crowbar is rotated in the corresponding direction until the crowbar hits the two second blocking blocks 4d2a, and then the crowbar is continued to be rotated in this direction, so that the winding roller 4a can be rotated, and the second ends of all C-shaped jumping spring arms 3 can be driven to move to a position where they can be separated from the buckle 1a. Then, the crowbar is pulled to open the cover body 2.

Claims

1. A manhole cover, characterized in that: include A well seat (1), the inner edge of which is provided with a hinge position and at least one buckle (1a); The cover body (2) has a reinforcing rib structure (2a) on its inner side surface, dividing the inner side surface into a plurality of first areas (2b) in a circular array; one of the first areas (2b) has a hinge hinged to the well seat (1); when the cover body (2) is in a closed state, each buckle (1a) corresponds to a remaining first area (2b), and the edges of the first areas (2b) are all provided with protruding first blocking blocks (2b1); At least one C-shaped jumping spring arm (3), each of the C-shaped jumping spring arms (3) having a first end as a connection position and a second end as a block that fits into the buckle (1a); the number of the C-shaped jumping spring arms (3) is the same as the number of the buckles (1a), and they are respectively connected to first areas (2b) corresponding to the buckles (1a), and the outer wall close to the second end abuts against the first blocking block (2b1) under the elastic action of the C-shaped jumping spring arm (3) itself.

2. A manhole cover according to claim 1, characterized in that: There is one buckle (1a) which is opposite to the hinged position of the well seat (1); the cover body (2) is also provided with a slide groove (2b2) ​​in the radial direction on the first area (2b) corresponding to the buckle (1a); and the first blocking block (2b1) is slidably connected in the slide groove (2b2).

3. A manhole cover according to claim 1, characterized in that: It also includes a driving mechanism (4); the reinforcing rib structure (2a) divides the inner side surface of the manhole cover into a second area (2c) located in the middle of the plurality of first areas (2b); the driving mechanism (4) is arranged in the second area (2c) to drive the second ends of all the C-shaped jumping spring arms (3) to move to a position where they can be separated from the buckle (1a).

4. A manhole cover according to claim 3, characterized in that: The driving mechanism (4) comprises a winding roller (4a) and at least one connecting rope (4b); the winding roller (4a) is rotatably connected to the second area (2c); the number of the connecting ropes (4b) is equal to the number of C-shaped jumping spring arms (3), one end of which is connected to the winding roller (4a) and the other end of which is connected to the second end of the corresponding C-shaped jumping spring arm (3).

5. A manhole cover according to claim 4, characterized in that: The winding roller (4a) is also provided with an insertion hole (4d) at one end of the outer side surface of the cover body (2); the insertion hole (4d) comprises a circular groove (4d2) and a first waist-shaped through groove (2b1a) connected to the circular groove (4d2); the circular groove (4d2) is also provided with two first blocking blocks (2b1) staggered from the first waist-shaped through groove (2b1a).

6. A manhole cover according to claim 2, characterized in that: A first waist-shaped through groove (2b1a) is provided on the outer side surface of the first blocking block (2b1).

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