Municipal well lid opening device

Abstract

The utility model discloses a municipal well lid opening device which comprises a pull rod, a fixing mechanism is arranged on the pull rod, the fixing mechanism comprises transverse rods, a limiting block, a piston disc and a pressurizing mechanism, a plurality of transverse grooves are formed in the side wall of the pull rod at equal intervals, the transverse rods are connected in the transverse grooves in a sliding mode respectively, and the limiting block is arranged on the transverse rods. According to the fixing mechanism, synchronous clamping of the inner side and the outer side of the well lid is achieved through the sliding fit design of a pull rod and a transverse rod, the transverse rod can be accurately positioned under guiding of a limiting block, the reliability of hydraulic transmission is ensured through the design of a piston disc, and a stable movement track is provided for the transverse rod through the arrangement of a limiting groove; the hydraulic oil filling design of the internal groove provides a power source for the whole mechanism, the installation of the fixing sleeve provides stable support for the whole mechanism, and the multi-protection design obviously improves the stability and safety in the well lid opening process.

Description

TECHNICAL FIELD

[0001] The utility model relates to well lid uncapping technical field, more specifically, it relates to a municipal well lid uncapping device. BACKGROUND

[0002] In the city municipal facilities maintenance work, well lid opening is a common and important operation, however, the well lid uncapping device that the current market generally uses has technical defects, mainly shows in the design of its clamping mechanism, the existing device usually adopts the unilateral hooking mode to operate, and the design of the single point force cannot realize the overall control to the well lid, so that the whole opening process lacks the necessary balance and stability.

[0003] The design defect of unilateral clamping not only increases the operation difficulty, but also brings many safety hazards, when the operator tries to open the well lid, due to the lack of symmetrical clamping force, the well lid is easy to incline or shake in the lifting process, not only increases the labor intensity of the workers, but also can cause the well lid damage or personnel injury and other safety accidents. UTILITY MODEL CONTENTS

[0004] (I) technical problem solved

[0005] In view of the problems in the prior art, the utility model provides a municipal well lid uncapping device to solve the technical problems mentioned in the background art.

[0006] (II) technical scheme

[0007] In order to achieve the above purpose, the utility model provides the following technical scheme: a municipal well lid uncapping device, including pull rod, the fixed mechanism is arranged on the pull rod, the fixed mechanism includes horizontal rod, limit block, piston disc and pressurizing mechanism, a plurality of horizontal grooves are opened on the side wall of the pull rod at equal intervals, the horizontal rod is slidably connected in each horizontal groove, the limit groove is opened on the pull rod, the piston disc is coaxially installed on each horizontal rod, the piston disc is slidably connected in the limit groove, a plurality of limit blocks are installed in each limit groove at equal intervals, and a plurality of horizontal rods are slidably connected on the limit block, and the pressurizing mechanism is installed on the upper end of the pull rod.

[0008] The utility model is further provided with that the internal groove is opened in the pull rod, a plurality of limit grooves are communicated in the internal groove, and the design of the internal groove guarantees the communication of hydraulic oil.

[0009] The utility model further sets up, the pressing mechanism includes fixed sleeve and pressing rod, the fixed sleeve fixed mounting at the upper end of pull rod, the pressing rod sliding connection in the fixed sleeve, the pressing rod sealed sliding connection in the internal groove, the design of pressing mechanism guarantees the transmission of pressure.

[0010] The utility model further sets up, the fixed sleeve's lateral wall is equipped with a plurality of vertical grooves, each vertical groove is sliding connection with the clamping rod respectively, the pressing rod is equipped with annular groove, the clamping rod is clamped in annular groove, and the design of vertical groove guarantees the sliding of clamping rod.

[0011] The utility model further sets up, a plurality of clamping rods are equipped with horizontal frame, the horizontal frame is equipped with push spring, a plurality of push springs are respectively resisted and touched on the lateral wall of fixed sleeve, and the design of horizontal frame guarantees the continuity of pushing.

[0012] The utility model further sets up, the fixed sleeve is equipped with screw sleeve on screw, the lower end of screw sleeve is connected with thrust bearing, and the thrust bearing is resisted and touched on a plurality of horizontal frames, and the design of screw sleeve guarantees the supply of power.

[0013] The utility model further sets up, the fixed sleeve is sliding connection with synchronous sleeve, a plurality of pull rods are sliding connection on the lateral wall of synchronous sleeve respectively, and the design of synchronous sleeve guarantees the location of clamping rod.

[0014] The utility model further sets up, the internal groove is filled with hydraulic oil.

[0015] (Three) beneficial effects

[0016] Compared with the prior art, the utility model provides a kind of municipal well lid opening device, with following

[0017] Beneficial effects:

[0018] The fixed mechanism is realized synchronous clamping to the inside and outside of well lid by the sliding cooperation design of pull rod and horizontal rod, horizontal rod can be accurately positioned under the guidance of limiting block, and the design of piston disc ensures the reliability of hydraulic transmission, the setting of limiting groove provides stable movement track for horizontal rod, and the hydraulic oil filling design of internal groove provides power source for the whole mechanism, the installation of fixed sleeve provides stable support for the whole mechanism, and the design of this multiple protection significantly improves the stability and safety in the process of well lid opening, and the innovation design of fixed mechanism successfully solves the unstable problem of traditional single-side clamping mode.

[0019] The pressurizing mechanism adopts innovative hydraulic transmission principle, realizes accurate control of the hydraulic oil through reciprocating movement of the pressurizing rod, the design of the annular groove provides reliable positioning reference for the clamping rod, the guiding effect of the vertical groove ensures the accuracy of the movement of the clamping rod, the cooperation design of the horizontal frame and the push spring provides necessary pre-tightening force, the combination of the screw sleeve and the thrust bearing realizes accurate adjustment of the pressure, and the setting of the synchronous sleeve ensures the cooperative movement of the multiple pull rods, the precise mechanical transmission design not only improves the operation accuracy of the device, but also significantly enhances the reliability and durability of the whole system, and through the optimization design of the pressurizing mechanism, the accurate control of the well lid opening process is realized. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a municipal well lid opening device in the utility model;

[0021] Figure 2 It is a schematic diagram of the sectional structure of a pull rod in the utility model;

[0022] Figure 3 It is a schematic diagram of the overall structure of a municipal well lid opening device in the utility model Figure 2 It is a schematic diagram of the overall structure of a municipal well lid opening device in the utility model

[0023] Figure 4 It is a schematic diagram of the structure of a pressurizing mechanism in the utility model;

[0024] Figure 5 It is a schematic diagram of the structure of a pressurizing mechanism in the utility model.

[0025] In the figure: 1, pull rod; 2, horizontal rod; 3, limiting block; 4, piston disc; 5, horizontal groove; 6, limiting groove; 7, inner groove; 8, fixed sleeve; 9, pressurizing rod; 10, vertical groove; 11, annular groove; 12, horizontal frame; 13, push spring; 14, screw sleeve; 15, thrust bearing; 16, clamping rod; 17, synchronous sleeve. DETAILED DESCRIPTION

[0026] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0028] In the utility model, in the case where no opposite statement is made, the orientation such as "upper, lower" is usually for the direction shown in the drawing, or for the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left, right" is usually for the left and right shown in the drawing; "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the utility model.

[0029] Please refer to Figures 1-5 The utility model discloses a municipal well lid uncapping device, including pull rod 1, be provided with fixed mechanism on pull rod 1, and fixed mechanism includes horizontal bar 2, limit block 3, piston disc 4 and pressurizing mechanism, the lateral wall of pull rod 1 is equally spaced and is provided with a plurality of horizontal grooves 5, the horizontal bar 2 of sliding connection is arranged in each horizontal groove 5 respectively, and limit slot 6 is seted up on pull rod 1, the coaxial heart of each horizontal bar 2 is installed with piston disc 4 respectively, and piston disc 4 is connected in limit slot 6 slidingly, a plurality of limit blocks 3 are installed in each limit slot 6 respectively at equal intervals, and a plurality of horizontal bars 2 are slidingly connected on the limit block 3 respectively, and pressurizing mechanism is installed at the upper end of pull rod 1, and the internal groove 7 is seted up in pull rod 1, and a plurality of limit slots 6 are communicated in the internal groove 7 respectively, and pressurizing mechanism includes fixed sleeve 8 and pressurizing rod 9, and fixed sleeve 8 is fixedly installed at the upper end of pull rod 1, and pressurizing rod 9 is slidingly connected in fixed sleeve 8, and pressurizing rod 9 is sealingly slidingly connected in internal groove 7, a plurality of vertical grooves 10 are seted up on the lateral wall of fixed sleeve 8, and the clamping rod 16 of sliding connection is arranged in each vertical groove 10 respectively, and the annular groove 11 is seted up in pressurizing rod 9, and the clamping rod 16 is clamped in annular groove 11, and a plurality of clamping rods 16 are equipped with horizontal frame 12, and horizontal frame 12 is equipped with push spring 13, and a plurality of push springs 13 are respectively abutted on the lateral wall of fixed sleeve 8, and the screw sleeve 14 is threadedly equipped on fixed sleeve 8, and the lower end of screw sleeve 14 is connected and is equipped with the thrust bearing 15, and the thrust bearing 15 is abutted on a plurality of horizontal frames 12, and the synchronous sleeve 17 is slidingly connected on fixed sleeve 8, and a plurality of pull rods 1 are slidingly connected on the lateral wall of synchronous sleeve 17 respectively, and internal groove 7 is filled with hydraulic oil.

[0030] In the embodiment, when the well lid is bidirectionally clamped and fixed, first, the pull rod 1 is inserted into the well lid, then the pressurizing rod 9 is moved downward to push the internal hydraulic oil to flow into the plurality of limit slots 6, then the plurality of piston discs 4 are expanded outward, at this time, the plurality of horizontal bars 2 are respectively inserted into the inner and outer sides of the well lid, then the upper and lower positions are limited, then the pressurizing rod 9 is fixed, at this time, the position of the horizontal bar 2 is locked to complete the fixing process.

[0031] More specifically, when the pressing rod 9 is pushed, the clamping rod 16 is expanded outward under the action of the push spring 13 in the normal state, at this time the pressing rod 9 can slide freely, then press the pressing rod 9 downward, thus the pressing rod 9 pushes the hydraulic oil to flow into the limiting groove 6 and completes the clamping process, at this time the clamping rod 16 on the plurality of horizontal frames 12 is inserted into the annular groove 11, then the screw sleeve 14 is rotated to make the thrust bearing 15 abut against the horizontal frame 12, then the horizontal frame 12 and the pressing rod 9 are pushed to move downward to perform the pressing process, and the clamping rod 16 slides along the vertical groove 10, thereby ensuring the clamping process.

[0032] In summary, when the whole device is used or operated: when the manhole cover is clamped and fixed in both directions, first the pull rod 1 is inserted into the manhole cover, then the pressing rod 9 is moved downward to push the internal hydraulic oil to flow into the plurality of limiting grooves 6, then the plurality of piston plates 4 are expanded outward, at this time the plurality of horizontal rods 2 are respectively inserted into the inner and outer sides of the manhole cover, then the upper and lower positions are all limited, then the pressing rod 9 is fixed, at this time the position of the horizontal rod 2 is locked to complete the fixing process, when the pressing rod 9 is pushed, the clamping rod 16 is expanded outward under the action of the push spring 13 in the normal state, at this time the pressing rod 9 can slide freely, then the pressing rod 9 is pressed downward, thus the pressing rod 9 pushes the hydraulic oil to flow into the limiting groove 6 and completes the clamping process, at this time the clamping rod 16 on the plurality of horizontal frames 12 is inserted into the annular groove 11, then the screw sleeve 14 is rotated to make the thrust bearing 15 abut against the horizontal frame 12, then the horizontal frame 12 and the pressing rod 9 are pushed to move downward to perform the pressing process, and the clamping rod 16 slides along the vertical groove 10, thereby ensuring the clamping process.

[0033] In all the above-mentioned solutions, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut cooperation connection, bolt or screw connection, or other known connection methods, which will not be described one by one here. In the above, whenever there is a fixed connection, welding is preferred. Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A municipal manhole cover opening device, comprising a pull rod (1), characterized in that: The pull rod (1) is provided with a fixing mechanism, which includes a transverse rod (2), a limiting block (3), a piston disc (4) and a pressurizing mechanism. Multiple transverse grooves (5) are equally spaced on the side wall of the pull rod (1). A transverse rod (2) is slidably connected in each transverse groove (5). A limiting groove (6) is provided on the pull rod (1). A piston disc (4) is coaxially mounted on each transverse rod (2). The piston disc (4) is slidably connected in the limiting groove (6). Multiple limiting blocks (3) are equally spaced in each limiting groove (6). Multiple transverse rods (2) are slidably connected to the limiting blocks (3). The pressurizing mechanism is installed at the upper end of the pull rod (1).

2. The municipal manhole cover opening device according to claim 1, characterized in that: The pull rod (1) has an internal groove (7) and multiple limiting grooves (6) are respectively connected to the internal groove (7).

3. A municipal manhole cover opening device according to claim 2, characterized in that: The pressurizing mechanism includes a fixed sleeve (8) and a pressurizing rod (9). The fixed sleeve (8) is fixedly installed on the upper end of the pull rod (1). The pressurizing rod (9) is slidably connected inside the fixed sleeve (8) and is sealed and slidably connected to the inner groove (7).

4. A municipal manhole cover opening device according to claim 3, characterized in that: The side wall of the fixed sleeve (8) is provided with multiple vertical grooves (10), and each vertical groove (10) is slidably connected with a locking rod (16). The pressure rod (9) is provided with an annular groove (11), and the locking rod (16) is locked in the annular groove (11).

5. A municipal manhole cover opening device according to claim 4, characterized in that: A horizontal frame (12) is provided on each of the multiple levers (16), and a push spring (13) is provided on the horizontal frame (12). The multiple push springs (13) respectively abut against the side wall of the fixed sleeve (8).

6. A municipal manhole cover opening device according to claim 5, characterized in that: The fixed sleeve (8) is threaded with a spiral sleeve (14), and the lower end of the spiral sleeve (14) is connected to a thrust bearing (15), which abuts against the plurality of transverse frames (12).

7. A municipal manhole cover opening device according to claim 6, characterized in that: A timing sleeve (17) is slidably connected to the fixed sleeve (8), and multiple pull rods (1) are slidably connected to the side wall of the timing sleeve (17).

8. A municipal manhole cover opening device according to claim 7, characterized in that: The internal groove (7) is filled with hydraulic oil.

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