An underground pipe network detection well lid opening device

Abstract

The utility model relates to the technical field of well lid opening equipment, concretely to an underground pipe network detection well lid opening device, including fixed link, the fixed link is equipped with two groups of vertical pole at interval, the bottom of vertical pole is provided with the plug-in rod, the outer wall of plug-in rod is equipped with the limit slot, the limit slot is inlayed and is equipped with the limit rod, the bottom of limit rod is rotatably connected with plug-in rod, the bottom of plug-in rod is provided with the sleeve, the sleeve is equipped with the counterbore of plug-in rod matching, the output shaft of electric push rod is fixedly connected with sleeve, after the bottom of plug-in rod is inserted into the below of well lid, the operating personnel start electric push rod, make the sleeve slide to plug-in rod end portion to separate from the abutment of limit rod, make limit rod rotate and unfold, carry out multi -point abutment support to well lid through at least three groups of limit rod, avoid the well lid to produce the drop when opening, improved security.

Description

Technical Field

[0001] This application relates to the technical field of manhole cover opening equipment, specifically a manhole cover opening detection device for underground pipeline networks. Background Technology

[0002] In the maintenance and inspection of underground pipeline facilities, safely and efficiently opening manhole covers is a primary step. Currently, most traditional manhole cover opening devices used in the industry rely on hook-type tools for their core operation. Specifically, the operator needs to vertically insert the rod-shaped part of a specially designed hook into the pre-set opening holes (usually two) on the surface of the manhole cover. Then, within the confined space, the hook rod must be manually rotated (usually 90 degrees or a specific angle) so that the hook end is turned under the bottom of the manhole cover and forms a stop with the edge or structure at the bottom of the cover. Only after completing the above rotation and positioning can the operator use leverage (such as with a crowbar) or directly pull the hook rod to open the heavy manhole cover upwards.

[0003] However, the aforementioned manhole cover opening devices require precise alignment of the insertion hole and rotation to achieve hook limiting each time they are opened, which involves multiple steps and is time-consuming. Furthermore, the reliability of the engagement between the rotating hook and the bottom of the manhole cover is highly dependent on the operator's experience and strength, and the hook is prone to slippage due to incomplete rotation or uneven force, threatening the safety of surrounding personnel, thus the safety is not high. Utility Model Content

[0004] To address the issue of insufficient safety when opening manhole covers in existing technologies, this utility model provides a device for detecting the opening of manhole covers in underground pipeline networks.

[0005] Therefore, the specific technical solution adopted by this utility model is as follows:

[0006] This utility model provides a device for opening manhole covers in underground pipeline network detection, characterized in that it includes:

[0007] The base has a column fixedly installed at one end, and a mounting bracket is rotatably installed on the top of the column. Pressure rods and fixing rods are fixedly installed at both ends of the mounting bracket. Two sets of vertical rods are spaced apart on the fixing rods, and insertion rods are installed at the bottom of the vertical rods.

[0008] The outer wall of the insertion rod is provided with a limiting groove. There are at least three sets of limiting grooves, which are evenly arranged along the circumference of the insertion rod. A limiting rod is embedded in the limiting groove. The end of the limiting rod is rotatably connected to the insertion rod. The top of the limiting groove is provided with a groove. A V-shaped spring plate is provided in the groove. One end of the V-shaped spring plate is fixedly connected to the inner wall of the groove. The other end of the V-shaped spring plate is located in the limiting groove and abuts against the limiting rod. The insertion rod is provided with an installation cavity. An electric push rod is fixedly installed in the installation cavity. A sleeve is provided at the bottom of the insertion rod. The sleeve is provided with a countersunk hole that matches the insertion rod. The output shaft of the electric push rod is fixedly connected to the sleeve.

[0009] Preferably, the fixed rod is provided with two sets of sliding grooves at intervals, and the two sets of vertical rods are each slidably set in one set of sliding grooves. By sliding the two sets of vertical rods along the sliding grooves, the position of the insert rods on the two sets of vertical rods can be adjusted, thereby adapting to the opening of manhole covers of different specifications and ensuring the effective opening of manhole covers.

[0010] Preferably, a motor is fixedly mounted on one end of the fixing rod, and a screw is rotatably mounted on the fixing rod. The screw passes through two sets of sliding grooves, and one end of the screw in each of the two sets of sliding grooves has a threaded section with opposite directions. The vertical rod is fitted onto the screw. The output shaft of the motor is connected to one end of the screw for transmission. When the vertical rod slides along the sliding groove, the operator starts the motor, which drives the screw to rotate. The opposite threaded sections at both ends of the screw drive the two sets of vertical rods to move closer or further apart, thereby adjusting the distance between the two sets of rods. The operation is convenient.

[0011] Preferably, the side wall of the vertical rod is fixedly provided with a locking block, and the side wall of the slide groove is provided with a locking groove that matches the locking block. When the vertical rod slides along the slide groove, the locking block and the locking groove limit the sliding of the vertical rod to ensure the stability of the vertical rod sliding. In addition, the locking block can transfer the weight of the manhole cover to the fixed rod when the manhole cover is lifted, avoiding the screw rod from directly bearing the weight of the manhole cover.

[0012] Preferably, the top of the insertion rod is rotatably connected to the bottom of the vertical rod. When the mounting frame drives the vertical rod to rotate and descend, the top of the insertion rod is rotatably connected to the vertical rod so that the insertion rod can always remain vertical, making it easy to insert the bottom of the insertion rod into the opening hole on the manhole cover.

[0013] Preferably, the number of limiting grooves is four sets, and the four sets of limiting rods in the four sets of limiting grooves are arranged at 90° intervals to ensure that the limiting rods provide effective multi-point abutment support to the bottom of the manhole cover after unfolding, so as to prevent the manhole cover from accidentally falling off when it is lifted.

[0014] Preferably, a support frame is fixedly installed on the base. The top of the support frame is provided with a through hole one, and the pressure rod is provided with a through hole two that matches the through hole one. An adjusting rod is inserted into the through hole one and the through hole two. When the manhole cover opening operation is not required, the operator rotates the pressure rod to align the through hole one and the through hole two, and then inserts the adjusting rod into the through hole one and the through hole two to limit and fix the pressure rod, preventing the pressure rod from rotating arbitrarily and facilitating the operator to move the base. When the manhole cover opening operation is required, the adjusting rod can be removed to rotate the pressure rod.

[0015] The advantages of adopting the above technical solution are:

[0016] This invention includes a fixed rod with two sets of vertical rods spaced apart. Each vertical rod has an insert rod at its bottom, and the outer wall of the insert rod has a limiting groove. A limiting rod is embedded in the limiting groove, and the bottom of the limiting rod is rotatably connected to the insert rod. A sleeve is located at the bottom of the insert rod, and the sleeve has a countersunk hole that matches the insert rod. The output shaft of the electric push rod is fixedly connected to the sleeve. After the bottom of the insert rod is inserted under the manhole cover, the operator activates the electric push rod, causing the sleeve to slide towards the end of the insert rod, thus disengaging from the limiting rod. This allows the limiting rod to rotate and unfold. At least three sets of limiting rods provide multi-point support for the manhole cover, preventing it from falling off when opened and improving safety. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of this utility model is shown;

[0019] Figure 2 This diagram shows a partial structural schematic of the sleeve of this utility model after it has been opened;

[0020] Figure 3 A partial cross-sectional view of the insertion rod of this utility model is shown;

[0021] Figure 4 A partially enlarged view of part A of this utility model is shown.

[0022] The components include: 1. Base; 101. Column; 102. Support frame; 103. Adjusting rod; 2. Mounting frame; 3. Pressure rod; 4. Fixing rod; 401. Slide groove; 402. Slot; 5. Vertical rod; 6. Insert rod; 601. Limiting groove; 602. V-shaped spring plate; 7. Limiting rod; 8. Electric push rod; 801. Sleeve; 802. Countersunk hole; 9. Motor; 901. Screw. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] like Figure 1-4As shown, this utility model embodiment discloses an underground pipeline detection manhole cover opening device, including a base 1, a column 101 fixedly installed at one end of the base 1, an installation frame 2 rotatably installed on the top of the column 101, a pressure rod 3 and a fixing rod 4 fixedly installed at both ends of the installation frame 2, two sets of vertical rods 5 spaced apart on the fixing rod 4, and an insertion rod 6 installed at the bottom of the vertical rod 5.

[0025] The outer wall of the insertion rod 6 is provided with a limiting groove 601. The limiting groove 601 has at least three sets and is evenly arranged around the circumference of the insertion rod 6. A limiting rod 7 is embedded in the limiting groove 601. The end of the limiting rod 7 is rotatably connected to the insertion rod 6. The top of the limiting groove 601 is provided with a groove. A V-shaped spring plate 602 is provided in the groove. One end of the V-shaped spring plate 602 is fixedly connected to the inner wall of the groove. The other end of the V-shaped spring plate 602 is located in the limiting groove 601 and abuts against the limiting rod 7. The insertion rod 6 is provided with an installation cavity. An electric push rod 8 is fixedly installed in the installation cavity. A sleeve 801 is provided at the bottom of the insertion rod 6. The sleeve 801 is provided with a countersunk hole 802 that matches the insertion rod 6. The output shaft of the electric push rod 8 is fixedly connected to the sleeve 801.

[0026] In at least one embodiment, the fixed rod 4 is provided with two sets of sliding grooves 401 at intervals, and the two sets of vertical rods 5 are each slidably disposed in one set of sliding grooves 401. By sliding the two sets of vertical rods 5 along the sliding grooves 401, the position of the insert rods 6 on the two sets of vertical rods 5 can be adjusted, thereby adapting to the opening of manhole covers of different specifications and ensuring the effective opening of manhole covers.

[0027] In at least one embodiment, a motor 9 is fixedly mounted on one end of the fixing rod 4, and a screw 901 is rotatably mounted on the fixing rod 4. The screw 901 passes through two sets of sliding grooves 401, and a section of the screw 901 within the two sets of sliding grooves 401 has threaded sections with opposite directions. The vertical rod 5 is fitted onto the screw 901. The output shaft of the motor 9 is connected to one end of the screw 901 for transmission. When the vertical rod 5 slides along the sliding groove 401, the operator starts the motor 9, which drives the screw 901 to rotate. The opposite threaded sections at both ends of the screw 901 drive the two sets of vertical rods 5 to move closer or further apart, thereby adjusting the distance between the two sets of insert rods 6. The operation is convenient.

[0028] In at least one embodiment, a locking block is fixedly provided on the side wall of the vertical rod 5, and a slot 402 that matches the locking block is provided on the side wall of the slide groove 401. When the vertical rod 5 slides along the slide groove 401, the locking block and the slot 402 limit the sliding of the vertical rod 5 to ensure the stability of the sliding of the vertical rod 5. In addition, the locking block can transfer the weight of the manhole cover to the fixed rod 4 when the manhole cover is lifted, so as to prevent the screw 901 from directly bearing the weight of the manhole cover.

[0029] In at least one embodiment, the top of the insertion rod 6 is rotatably connected to the bottom of the vertical rod 5. When the mounting frame 2 drives the vertical rod 5 to rotate and descend, the top of the insertion rod 6 can always remain vertical by rotating with the vertical rod 5, which makes it easy to insert the bottom of the insertion rod 6 into the opening hole on the manhole cover.

[0030] In at least one embodiment, there are four sets of limiting grooves 601, and four sets of limiting rods 7 in the four sets of limiting grooves 601 are arranged at 90° intervals to ensure that the limiting rods 7 provide effective multi-point support for the bottom of the manhole cover after unfolding, so as to prevent the manhole cover from accidentally falling off when it is lifted.

[0031] In at least one embodiment, a support frame 102 is fixedly installed on the base 1. The top of the support frame 102 is provided with a through hole 1, and the pressure rod 3 is provided with a through hole 2 that matches the through hole 1. An adjusting rod 103 is inserted into the through hole 1 and the through hole 2. When there is no need to open the manhole cover, the operator rotates the pressure rod 3 to align the through hole 1 and the through hole 2, and then inserts the adjusting rod 103 into the through hole 1 and the through hole 2 to limit and fix the pressure rod 3, preventing the pressure rod 3 from rotating arbitrarily and facilitating the operator to move the base 1. When it is necessary to open the manhole cover, the adjusting rod 103 can be removed to rotate the pressure rod 3.

[0032] In at least one embodiment, a switch module and a battery pack are provided on the base 1. The switch module is electrically connected to the electric push rod 8, the motor 9 and the battery pack through wires. The operator adjusts the working status of the electric push rod 8 and the motor 9 through the switch module.

[0033] When opening manhole covers for underground pipeline facilities, workers move base 1 to the manhole cover to be opened. Then, the fixing rod 4 on the mounting frame 2 is aligned with the two pre-set opening holes on the manhole cover, so that the two sets of insert rods 6 at the bottom of the fixing rod 4 are aligned with one set of opening holes. Next, workers grasp the pressure rod 3 to lift the frame and rotate the mounting frame 2. As the mounting frame 2 rotates, it causes the insert rods 6 to move downwards, so that the bottom of the insert rods 6 inserts into the opening hole on the manhole cover and extends below the manhole cover. At this point, the bottom of the insert rod 6... The sleeve 801 is fitted onto the insert rod 6, and the limiting rod 7 is embedded in the limiting groove 601 and abuts against the inner wall of the countersunk hole 802. The V-shaped spring plate 602 in the groove is compressed and deformed by the limiting rod 7. When the limiting groove 601 on the insert rod 6 is completely below the manhole cover, the operator activates the electric push rod 8 in the installation cavity, causing the output shaft of the electric push rod 8 to extend. At this time, the output shaft of the electric push rod 8 drives the sleeve 801 to slide towards the end of the insert rod 6. When the sleeve 801 slides until it disengages from the limiting rod 7, the V-shaped spring... The end of piece 602 that abuts against the limiting rod 7 pushes the top of the limiting rod 7 to unfold, causing the limiting rod 7 to rotate through the connection between its bottom and the insertion rod 6. Finally, the limiting rods 7 on the insertion rod 6 rotate to a horizontal position. There are three or more sets of limiting rods 7. Then, the operator presses the pressure rod 3 and uses the mounting bracket 2 to raise the insertion rod 6. When the insertion rod 6 rises, the multiple sets of horizontally positioned limiting rods 7 abut against the bottom inner wall of the manhole cover opening at multiple points, limiting movement without requiring rotation or adjustment of the insertion rod 6. Afterwards, [the process can proceed]. The manhole cover can be lifted and opened easily. Multiple sets of insert rods 6 provide multi-point restraint at the bottom of the manhole cover, preventing the insert rods 6 from falling off the manhole cover and improving the safety of the operators. When lowering the manhole cover, after the manhole cover is placed, the electric push rod 8 drives the sleeve 801 to rise along the bottom end of the insert rod 6. During the rising process, the inner wall of the countersunk hole 802 squeezes the limiting rod 7, causing the limiting rod 7 to rotate along the insert rod 6 and retract into the limiting groove 601. Finally, the insert rod 6 can be taken out through the opening hole. The operation is convenient.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A device for opening manhole covers for underground pipeline detection, characterized in that: include The base has a column fixedly installed at one end, and a mounting bracket is rotatably installed on the top of the column. Pressure rods and fixing rods are fixedly installed at both ends of the mounting bracket. Two sets of vertical rods are spaced apart on the fixing rods, and insertion rods are installed at the bottom of the vertical rods. The outer wall of the insertion rod is provided with a limiting groove. There are at least three sets of limiting grooves, which are evenly arranged along the circumference of the insertion rod. A limiting rod is embedded in the limiting groove. The end of the limiting rod is rotatably connected to the insertion rod. The top of the limiting groove is provided with a groove. A V-shaped spring plate is provided in the groove. One end of the V-shaped spring plate is fixedly connected to the inner wall of the groove. The other end of the V-shaped spring plate is located in the limiting groove and abuts against the limiting rod. The insertion rod is provided with an installation cavity. An electric push rod is fixedly installed in the installation cavity. A sleeve is provided at the bottom of the insertion rod. The sleeve is provided with a countersunk hole that matches the insertion rod. The output shaft of the electric push rod is fixedly connected to the sleeve.

2. The underground pipeline detection manhole cover opening device according to claim 1, characterized in that: The fixed rod is provided with two sets of sliding grooves at intervals, and the two sets of vertical rods are each slidably set in one set of sliding grooves.

3. The underground pipeline detection manhole cover opening device according to claim 2, characterized in that: A motor is fixedly installed at one end of the fixed rod, and a screw is rotatably installed on the fixed rod. The screw passes through two sets of sliding grooves, and a section of the screw in the two sets of sliding grooves has a threaded section with opposite directions. A vertical rod is fitted onto the screw, and the output shaft of the motor is connected to one end of the screw for transmission.

4. The underground pipeline detection manhole cover opening device according to claim 3, characterized in that: The side wall of the vertical rod is fixedly provided with a locking block, and the side wall of the slide groove is provided with a locking groove that matches the locking block.

5. The underground pipeline detection manhole cover opening device according to claim 4, characterized in that: The top of the insertion rod is rotatably connected to the bottom of the vertical rod.

6. The underground pipeline detection manhole cover opening device according to claim 1, characterized in that: The number of limiting grooves is four sets.

7. The underground pipeline detection manhole cover opening device according to claim 1, characterized in that: A support frame is fixedly installed on the base. The top of the support frame has a through hole one, and the pressure rod has a through hole two that matches the through hole one. An adjusting rod passes through the through hole one and the through hole two.

Images