Wellhead structure of drainage pipeline inspection well

Abstract

The utility model discloses a drainage pipeline inspection well mouth structure, and particularly relates to the technical field of municipal drainage pipeline inspection wells, which comprises an inspection well, a well mouth is arranged on the inspection well, a sealing ring is arranged on the well mouth, a well lid is arranged on the sealing ring, a ladder is arranged in the inspection well, and a connecting shaft is rotatably arranged in the middle of the ladder. The connecting shaft is provided with a connecting piece, the connecting piece is provided with an extending piece which penetrates through the sealing ring and is located outside the inspection well, and the extending piece is provided with a fixing buckle. According to the well mouth structure of the drainage pipeline inspection well, the connecting piece is fixed through the sealing ring on the inspection well, staff can go in and out of the inspection well through the ladder, the ladder is divided into two parts through the connecting shaft on the ladder, and meanwhile the ladder is pulled upwards through the connecting piece when not used, so that the staff can go out of the inspection well through the ladder. The ladder is folded to be in a V shape, and the ladder can be used for bearing when people fall off from a well mouth during folding.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of municipal drainage pipeline inspection well, specifically relates to a drainage pipeline inspection well wellhead structure. BACKGROUND

[0002] The municipal drainage pipeline inspection well is a structure arranged for the convenience of regular inspection, cleaning and dredging of the drainage pipeline. They are usually located at the intersection, turning, pipe diameter or slope change of the drainage pipeline, and every certain distance on the straight pipe section. The main components of the inspection well include well seat, well shaft, well cover and related accessories.

[0003] According to the disclosure (announcement) number: CN208884575U, the disclosure (announcement) day: May 21, 2019, the disclosure of a kind of municipal engineering drainage inspection well anti-falling device, including wellhead pipe, protective hook, positioning ring and protection plate, the wellhead pipe is fixedly installed at the export of well body, and the top of wellhead pipe is paved with warning ring paste, and wellhead pipe and well body are fixedly connected by expansion bolt, the top of wellhead pipe is reserved to place recess, and positioning hook is fixedly installed on the inner wall of wellhead pipe, the protective hook is arranged at the bottom edge of wellhead pipe, and the protective hook is fixed with protective net, the inside of positioning ring is fixedly installed with reinforcing rib, and positioning ring is fixed on positioning hook, the protection plate is arranged on the top of positioning ring, and the protection plate is connected with reinforcing rib by elastic element.

[0004] In the above-mentioned patent and prior art, it is known that the bottom of the municipal drainage pipeline has sewage all year round, and the bottom of the ladder in the inspection well is soaked in water for a long time, which causes the ladder to be weak due to the soaking of sewage, thereby causing the ladder to be damaged when a person moves down on the ladder, resulting in danger to the worker. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a drainage pipeline inspection well wellhead structure, which realizes that the ladder located at the bottom of the maintenance well does not contact with the sewage at the bottom of the well when the maintenance well is not used.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a drainage pipeline inspection well wellhead structure, comprising an inspection well, a wellhead is formed on the inspection well, a sealing ring is arranged on the wellhead, a well cover is arranged on the sealing ring, a ladder is arranged in the inspection well, a connecting shaft is rotatably arranged in the middle of the ladder, a connecting piece is arranged on the connecting shaft, an extension piece is arranged on the connecting piece and passes through the sealing ring to the outside of the inspection well, and a fixing buckle is arranged on the extension piece.

[0007] As preferred, the manhole cover is provided with a placing groove, and a pull rod is arranged between the two extension members, and the pull rod is located in the placing groove in a default state of the inspection well.

[0008] As preferred, the manhole cover is provided with a slot, and a pull plate is rotatably arranged in the slot, and a fixing block is arranged between the pull plate and the manhole cover.

[0009] As preferred, the pull plate and the manhole cover are both provided with an insertion groove, and the bottom of the fixing block is symmetrically provided with an extension block, and the two extension blocks are respectively inserted into the two insertion grooves.

[0010] As preferred, the manhole cover is symmetrically provided with a hidden groove, and the extension member is located in the hidden groove in a default state.

[0011] In the above technical solution, the manhole cover is provided with a placing groove, and a pull rod is arranged between the two extension members, and the pull rod is located in the placing groove in a default state of the inspection well. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0013] Figure 1 The overall structure schematic diagram provided by the embodiments of the present application is shown in the figure.

[0014] Figure 2 The cross-sectional structure schematic diagram provided by the embodiments of the present application is shown in the figure.

[0015] Explanation of reference signs:

[0016] 1, inspection well; 10, manhole cover; 100, hidden groove; 11, wellhead; 12, sealing ring; 13, placing groove; 14, slot; 15, pull plate; 16, fixing block; 17, extension block; 18, insertion groove; 19, ladder; 20, connecting shaft; 21, connecting piece; 22, extension member; 23, fixing buckle; 24, pull rod. DETAILED DESCRIPTION

[0017] In order to make the technical scheme of the utility model better understood by the skilled in the art, the utility model will be further described in detail below in combination with the drawings.

[0018] As shown in Figures 1-2 A drainage pipeline inspection well wellhead structure, including inspection well 1, the wellhead 11 is opened on the inspection well 1, the sealing ring 12 is arranged on the wellhead 11, the well lid 10 is arranged on the sealing ring 12, the ladder 19 is arranged in the inspection well 1, the connecting shaft 20 is rotatably arranged in the middle of the ladder 19, the connecting piece 21 is arranged on the connecting shaft 20, the extension piece 22 is arranged on the connecting piece 21 and located outside the inspection well 1 through the sealing ring 12, and the fixing buckle 23 is arranged on the extension piece 22.

[0019] Specifically, when using, the well lid 10 of the wellhead 11 of the inspection well 1 is opened from the sealing ring 12, then the connecting piece 21 is placed downward in the sealing ring 12, the extension piece 22 is placed downward at the sealing ring 12 and the ladder 19 is swung downward, then the worker can climb downward from the ladder 19, after the maintenance is finished, the extension piece 22 is pulled to drive the connecting piece 21 and the ladder 19 is swung upward, and the bottom of the ladder 19 is moved upward from the well bottom, avoiding corrosion.

[0020] In the above scheme, the connecting piece 21 is fixed through the sealing ring 12 on the maintenance well, the staff enters and exits in the maintenance well through the ladder 19, the ladder 19 is divided into two through the connecting shaft 20 on the ladder 19, and when the ladder 19 is not used, the ladder 19 is folded and presents V-shaped by pulling upward through the connecting piece 21, and the ladder 19 can be loaded when personnel falls on the wellhead 11.

[0021] As a further provided embodiment of the utility model, according to Figure 1 And Figure 2 The well lid 10 is provided with a placing groove 13, the pull rod 24 is arranged between the two extension pieces 22, and the pull rod 24 is located in the placing groove 13 in the default state of the inspection well 1.

[0022] Specifically, pulling the pull rod 24 can drive the two extension pieces 22 to move, and the two connecting pieces 21 are moved, in the default state, the pull rod 24 is placed in the placing groove 13 for storage, and the well lid 10 is fixed on the wellhead 11.

[0023] As a further provided embodiment of the utility model, according to Figure 2 The well lid 10 is provided with a slot 14, the pull plate 15 is rotatably arranged in the slot 14, and the fixing block 16 is arranged between the pull plate 15 and the well lid 10.

[0024] Specifically, the well lid 10 is taken out from the wellhead 11 by pulling the pull plate 15.

[0025] As a further provided embodiment of the utility model, according to Figure 2 As shown in the figure, the pull plate 15 and the manhole cover 10 are both provided with the insertion slot 18, and the bottom of the fixed block 16 is symmetrically provided with the extension block 17, and the two extension blocks 17 are respectively inserted into the two insertion slots 18.

[0026] Specifically, the two extension blocks 17 are inserted into the two insertion slots 18 to fix the pull plate 15 on the manhole cover 10.

[0027] As a further provided embodiment of the utility model, according to Figure 2 As shown in the figure, the manhole cover 10 is symmetrically provided with the hidden groove 100, and the extension piece 22 is located in the hidden groove 100 in the default state.

[0028] Specifically, in the case of not being used, the extension piece 22 is stored in the hidden groove 100, and the walking of the pedestrian is not affected.

[0029] Working principle: in use, the manhole cover 10 of the wellhead 11 of the inspection well 1 is opened from the sealing ring 12, then the connecting piece 21 is placed downward in the sealing ring 12, and the extension piece 22 is placed downward at the sealing ring 12 and makes the ladder 19 swing downward, then the worker can climb downward from the ladder 19, after the maintenance is finished, the pull rod 24 can drive the two extension pieces 22 to move, and simultaneously drive the two connecting pieces 21 to move, in the default state, the pull rod 24 is placed in the placing groove 13 for storage, and the manhole cover 10 is fixed on the wellhead 11, and the bottom of the ladder 19 is moved upward from the well bottom, avoiding corrosion, then the two extension blocks 17 are inserted into the two insertion slots 18, and the pull plate 15 is fixed on the manhole cover 10, and the extension piece 22 is stored in the hidden groove 100.

[0030] The above only describes some exemplary embodiments of the utility model in a descriptive manner, without doubt, for ordinary skilled in the art, the described embodiments can be modified in various different ways without deviating from the spirit and scope of the utility model. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the utility model claims.

Claims

1. A structure of a manhole of a sewer inspection well, characterized by, The utility model relates to an inspection well (1), which is provided with a well mouth (11) and a sealing ring (12) on the well mouth (11), and a manhole cover (10) is arranged on the sealing ring (12), a ladder (19) is arranged in the inspection well (1), a connecting shaft (20) is rotatably arranged in the middle of the ladder (19), a connecting piece (21) is arranged on the connecting shaft (20), an extension piece (22) is arranged on the connecting piece (21) and extends outside the inspection well (1) through the sealing ring (12), and a fixing buckle (23) is arranged on the extension piece (22).

2. A structure of a manhole of a sewer inspection well according to claim 1, wherein A placing groove (13) is formed in the manhole cover (10), a pull rod (24) is arranged between the two extension pieces (22), and the pull rod (24) is located in the placing groove (13) in the default state of the inspection well (1).

3. A structure for a sewer access hole according to claim 2, wherein A slot (14) is formed in the manhole cover (10), a pull plate (15) is rotatably arranged in the slot (14), and a fixing block (16) is arranged between the pull plate (15) and the manhole cover (10).

4. A structure for a manhole of a sewer inspection shaft according to claim 3, characterized in that, Insert grooves (18) are formed in the pull plate (15) and the manhole cover (10), and extension blocks (17) are symmetrically arranged at the bottom of the fixing block (16), the two extension blocks (17) are respectively inserted into the two insert grooves (18).

5. A structure for a sewer access hole according to claim 1, wherein Symmetrical hidden grooves (100) are formed in the manhole cover (10), and the extension piece (22) is located in the hidden groove (100) in the default state.

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