A leakage detection device for road and bridge drainage pipes

Abstract

The utility model relates to the field of drainage pipe leakage detection, and specifically to a road and bridge drainage pipe leakage detection device, and its technical scheme is: comprising a main unit and a listening rod, a connecting plate is installed on the outside of the lower end of the listening rod, a positioning rod is arranged on the side of the connecting plate away from the listening rod, a fixing plate is fixedly installed on the outside of the upper end of the positioning rod, a sleeve is installed on the lower end of the positioning rod, and a marking pen is installed on the bottom of the sleeve. The beneficial effect of the utility model is: when the listening rod detects that there is a leakage in the underground drainage pipe, the positioning rod can be pressed down, at this time, the buffer spring outside the upper end of the sleeve will be squeezed and deformed, and the marking pen will also drop to contact the ground, and then the positioning rod, the sleeve and the marking pen are rotated, at this time, the connecting plate and the fixing plate will also rotate outside the listening rod, so that the marking pen rotates in a circle along the listening rod, and finally the marking pen can quickly draw a circle outside the listening rod to mark the leakage position.

Description

Technical Field

[0001] The utility model relates to the field of drainage pipeline leakage detection, in particular to a road and bridge drainage pipeline leakage detection device. Background Art

[0002] The existing water leakage detector is mainly used to detect leakage of tap water pipes buried underground or under bridges. The current water leakage detector includes: a main unit, a listening stick, connecting wires and headphones. The listening stick and the headphones are connected to the main unit through connecting wires respectively. When in use, the listening stick is attached to the ground, and then the listening stick uploads the measurement data to the main unit, which processes and outputs the corresponding data to the headphones, so that the detector can determine the location of the leakage. Since the water leakage detector is easily affected by the surrounding environment, it is necessary to measure and compare the sounds at multiple locations during use, and the experience of the detector is needed to locate the leakage point. However, when the maintenance personnel repeatedly measure in a certain area, when they leave the current measurement point, if they need to record, other maintenance personnel are needed to assist in marking the suspected leakage point, which requires more than two people to operate, which wastes manpower and is not convenient for marking the ground immediately according to the actual measurement situation.

[0003] Therefore, it is necessary to invent a leakage detection device for road and bridge drainage pipes. Utility Model Content

[0004] The purpose of the utility model is to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a road and bridge drainage pipe leakage detection device, comprising a main unit and a listening rod, wherein the main unit and the listening rod are connected by an electric wire, a connecting plate is installed on the outside of the lower end of the listening rod, a positioning rod is arranged on the side of the connecting plate away from the listening rod, a fixing plate is fixedly installed on the outside of the upper end of the positioning rod, a sleeve is installed on the lower end of the positioning rod, and a marking pen is installed on the bottom of the sleeve.

[0006] Based on the above features: when in use, the bottom of the listening rod is attached to the ground to detect whether there is leakage in the road and bridge drainage pipe. When the listening rod detects leakage in the underground drainage pipe, the positioning rod can be pressed down. At this time, the positioning rod will drive the fixing plate and the sleeve to move down, so that the marker pen will contact the ground, and the connecting plate will be in a fixed state. Then the positioning rod is rotated again. At this time, the connecting plate and the fixing plate will also rotate outside the listening rod, which is convenient for the marker pen to rotate in a circle along the listening rod, so that the marker pen draws a circle outside the listening rod to mark the leakage position, thereby improving work efficiency.

[0007] Preferably, a handle is installed on one side of the upper end of the listening rod, a limit plate is fixedly installed on the outer wall of the upper end of the listening rod, and an anti-drop plate is installed on the outer wall of the lower end of the listening rod.

[0008] Based on the above features: the staff can hold the handle to pull the listening rod to move the position, the set limit plate can limit the fixed plate to prevent the fixed plate from moving up and away from the listening rod, and the anti-detachment plate can limit the connecting plate to prevent the connecting plate from rising and falling synchronously with the positioning rod, and at the same time, the positioning rod can drive the connecting plate to rotate in place.

[0009] Preferably, movable holes are provided at intervals on the surface of the anti-slip plate, and balls are installed inside the movable holes.

[0010] Based on the above characteristics: the ball can roll inside the movable hole, and when the connecting plate rotates, the ball can assist the rotation outside the anti-slip plate.

[0011] Preferably, a through hole is provided in the middle of one side of the connecting plate close to the positioning rod, an insertion hole is provided in the middle of one side of the connecting plate away from the through hole, and a groove is provided on the inner wall of the insertion hole.

[0012] Based on the above features: the positioning rod passes through the socket, and the anti-slip plate outside the positioning rod is clamped on the inside of the groove to prevent the connecting plate from rising and falling outside the listening rod. At the same time, rolling friction occurs between the outside of the anti-slip plate and the inner wall of the groove through the ball bearings, so that the positioning rod drives the connecting plate to rotate more smoothly.

[0013] Preferably, a through hole is formed on a side of the fixing plate away from the positioning rod, and the listening rod movably passes through the through hole.

[0014] Based on the above features: when the positioning rod is lifted and moved, the fixing plate can be lifted and moved outside the listening bar through the perforations, so that the positioning rod can keep moving vertically and avoid the positioning rod from being separated from the listening bar.

[0015] Preferably, a buffer spring is installed on the outside of the upper end of the sleeve, a threaded hole is opened on one side of the lower end of the sleeve, a fixing nut is installed on one side of the outer end of the threaded hole, and a locking screw is threadedly connected inside the fixing nut.

[0016] Based on the above characteristics: when the positioning rod drives the sleeve to move downward, the buffer spring outside the upper end of the sleeve will be squeezed and deformed, so that the sleeve can drive the marker pen to descend and contact the ground. When the positioning rod is loosened, the buffer spring can rebound the positioning rod and the sleeve, making it convenient for the marker pen to rise away from the ground. When the marker pen is installed at the lower end of the inner cavity of the sleeve, the locking screw can be rotated to lock the marker pen.

[0017] Preferably, the sleeve is a hollow tubular structure, and a hole is opened at the bottom of the sleeve.

[0018] Based on the above features: the marking pen penetrates into the lower end of the inner cavity of the sleeve through the hole at the bottom of the sleeve, which facilitates the connection and fixation of the marking pen and the sleeve.

[0019] The beneficial effects of the utility model are:

[0020] 1. It is convenient to quickly mark the position after detection. When the listening rod detects leakage in the underground drainage pipe, the positioning rod can be pressed down. At this time, the buffer spring outside the upper end of the casing will be squeezed and deformed, and the marker will also drop to touch the ground. Then rotate the positioning rod, casing and marker. At this time, the connecting plate and the fixing plate will also rotate outside the listening rod, so that the marker rotates in a circle along the listening rod. Finally, the marker can quickly draw a circle outside the listening rod to mark the leakage position. Only one person can complete it, without the need for two people to operate, saving time and effort.

[0021] 2. The marker pen is inserted into the lower end of the inner cavity of the casing through the hole at the bottom of the casing. When the marker pen is installed at the lower end of the inner cavity of the casing, the locking screw can be rotated to lock the marker pen. When the marker pen needs to be removed, the locking screw can be rotated away from the marker pen. When the locking screw stops moving, the fixing nut can lock the locking screw, which is convenient for movable installation and replacement of the marker pen.

[0022] 3. The sleeve passes through the connecting plate through the through hole, which makes it convenient for the positioning rod to drive the sleeve to move down or up. The positioning rod passes through the jack, and the anti-drop plate outside the positioning rod is clamped on the inside of the groove to prevent the connecting plate from moving up and down outside the listening rod. At the same time, rolling friction occurs between the outside of the anti-drop plate and the inner wall of the groove through the ball bearing, so that the positioning rod drives the connecting plate to rotate more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the overall structure of a road and bridge drainage pipe leakage detection device provided by the utility model;

[0024] Figure 2 A diagram showing the disassembly state of a listening rod and a positioning rod of a road and bridge drainage pipe leakage detection device provided by the utility model;

[0025] Figure 3 This is a cross-sectional view of the interior of a casing of a road and bridge drainage pipeline leakage detection device provided by the utility model;

[0026] Figure 4 A road and bridge drainage pipe leakage detection device provided by the utility model Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0027] In the figure: 1. host; 2. listening rod; 21. handle; 22. limit plate; 23. anti-drop plate; 231. movable hole; 232. ball; 3. connecting plate; 31. through hole; 32. jack; 33. groove; 4. positioning rod; 5. fixing plate; 51. through hole; 6. sleeve; 61. buffer spring; 62. threaded hole; 63. fixing nut; 64. locking screw; 7. marking pen. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0029] Refer to the attached Figure 1-4 The utility model provides a road and bridge drainage pipe leakage detection device, comprising a host 1 and a listening rod 2, the host 1 and the listening rod 2 are connected by an electric wire (the other side of the listening rod 2 is also connected to an earphone, not shown in the figure, the model of the listening rod 2 is M302902, working principle: the listening rod 2 picks up the leakage sound transmitted to the road surface, uploads the measurement data to the host 1, the host 1 processes and outputs the corresponding data to the earphone, so that the detection personnel can judge the leakage position. The existing known technology will not be described in detail), a connecting plate 3 is installed on the lower end of the listening rod 2, a positioning rod 4 is arranged on the side of the connecting plate 3 away from the listening rod 2, a fixing plate 5 is fixedly installed on the upper end of the positioning rod 4, a sleeve 6 is installed on the lower end of the positioning rod 4, and a marking pen 7 is installed on the bottom of the sleeve 6.

[0030] When in use, the bottom of the listening rod 2 is attached to the ground to detect whether there is leakage in the road and bridge drainage pipe. During the detection process, it is necessary to keep moving the position of the listening rod 2 to expand the detection range. The upper and lower ends of the listening rod 2 are externally connected with a connecting plate 3 and a fixing plate 5. The fixing plate 5 can be movably raised and lowered outside the listening rod 2, and the other side of the fixing plate 5 is fixedly connected with a positioning rod 4. The lower end of the positioning rod 4 is movably connected through one side of the connecting plate 3, and a marking pen 7 (which can also be chalk, graphite pencil, etc., is installed at the bottom of the sleeve 6 at the lower end of the connecting plate 3) When the listening rod 2 detects leakage in the underground drainage pipe, the positioning rod 4 can be pressed down. At this time, the positioning rod 4 will drive the fixing plate 5 and the sleeve 6 to move down, so that the marking pen 7 will touch the ground, and the connecting plate 3 will be in a fixed state. Then the positioning rod 4 is rotated again. At this time, the connecting plate 3 and the fixing plate 5 will also rotate outside the listening rod 2, which is convenient for the marking pen 7 to rotate in a circle along the listening rod 2, so that the marking pen 7 draws a circle outside the listening rod 2 to mark the leakage position, thereby improving work efficiency.

[0031] Preferably, a handle 21 is installed on one side of the upper end of the listening rod 2, a limit plate 22 is fixedly installed on the outer wall of the upper end of the listening rod 2, and an anti-drop plate 23 is installed on the outer wall of the lower end of the listening rod 2.

[0032] The staff can hold the handle 21 to pull the listening rod 2 to move its position. The set limit plate 22 can limit the fixed plate 5 to prevent the fixed plate 5 from moving up and away from the listening rod 2, and the anti-detachment plate 23 can limit the connecting plate 3 to prevent the connecting plate 3 from rising and falling synchronously with the positioning rod 4. At the same time, the positioning rod 4 can drive the connecting plate 3 to rotate in place.

[0033] Preferably, movable holes 231 are spaced apart on the surface of the anti-slip plate 23 , and balls 232 are installed inside the movable holes 231 .

[0034] The ball bearing 232 can roll inside the movable hole 231 . When the connecting plate 3 rotates, the ball bearing 232 can assist the rotation outside the anti-slip plate 23 .

[0035] Preferably, a through hole 31 is provided in the middle of one side of the connecting plate 3 close to the positioning rod 4 , a plug hole 32 is provided in the middle of one side of the connecting plate 3 away from the through hole 31 , and a groove 33 is provided on the inner wall of the plug hole 32 .

[0036] The sleeve 6 movably penetrates the connecting plate 3 through the through hole 31, which makes it convenient for the positioning rod 4 to drive the sleeve 6 to move down or up, and the positioning rod 4 passes through the plug hole 32, and the anti-slip plate 23 outside the positioning rod 4 is clamped on the inner side of the groove 33 to prevent the connecting plate 3 from rising and falling outside the listening rod 2. At the same time, rolling friction occurs between the outside of the anti-slip plate 23 and the inner wall of the groove 33 through the ball 232, so that the positioning rod 4 drives the connecting plate 3 to rotate more smoothly.

[0037] Preferably, a through hole 51 is formed on a side of the fixing plate 5 away from the positioning rod 4 , and the listening rod 2 movably passes through the through hole 51 .

[0038] When the positioning rod 4 is lifted and lowered, the fixing plate 5 can be lifted and lowered outside the listening bar 2 through the through hole 51 to keep the positioning rod 4 moving vertically and avoid the positioning rod 4 from being separated from the listening bar 2.

[0039] Preferably, a buffer spring 61 is installed on the outside of the upper end of the sleeve 6, a threaded hole 62 is opened on one side of the lower end of the sleeve 6, a fixing nut 63 is installed on one side of the outer end of the threaded hole 62, and a locking screw 64 is threadedly connected to the inner part of the fixing nut 63.

[0040] When the positioning rod 4 drives the sleeve 6 to move downward, since the buffer spring 61 is limited between the positioning rod 4 and the connecting plate 3, the buffer spring 61 outside the upper end of the sleeve 6 will be squeezed and deformed, so that the sleeve 6 can drive the marker pen 7 to descend and contact the ground. When the positioning rod 4 is released, the buffer spring 61 can rebound the positioning rod 4 and the sleeve 6, making it convenient for the marker pen 7 to rise away from the ground. When the marker pen 7 is installed at the lower end of the inner cavity of the sleeve 6, the locking screw 64 can be rotated to lock and fix the marker pen 7. When the marker pen 7 needs to be removed, the locking screw 64 can be rotated away from the marker pen 7. When the locking screw 64 stops moving, the fixing nut 63 can lock and fix the locking screw 64.

[0041] Preferably, the sleeve 6 is a hollow tubular structure, and a hole is formed at the bottom of the sleeve 6 .

[0042] The marking pen 7 is inserted into the lower end of the inner cavity of the sleeve 6 through the hole at the bottom of the sleeve 6, so that the marking pen 7 is conveniently connected and fixed to the sleeve 6.

[0043] The use process of the utility model is as follows: when in use, the bottom of the listening rod 2 is attached to the ground to detect whether there is leakage in the road and bridge drainage pipe. During the detection process, the staff can hold the handle 21 to pull the listening rod 2 to move the position to expand the detection range. When the listening rod 2 detects that there is leakage in the underground drainage pipe, the positioning rod 4 can be pressed down. When the positioning rod 4 drives the sleeve 6 to move downward, the buffer spring 61 is limited between the positioning rod 4 and the connecting plate 3. At this time, the buffer spring 61 on the outer side of the upper end of the sleeve 6 will be squeezed and deformed. , so that the sleeve 6 can drive the marking pen 7 to descend and touch the ground, and the connecting plate 3 will be in a fixed state, and then the positioning rod 4, the sleeve 6 and the marking pen 7 are rotated. At this time, the connecting plate 3 and the fixed plate 5 will also rotate outside the listening rod 2, so that the marking pen 7 rotates in a circle along the listening rod 2. Finally, the marking pen 7 can draw a circle outside the listening rod 2 to mark the leakage position. When the marking is completed, the positioning rod 4 can be released. At this time, the buffer spring 61 can rebound the positioning rod 4 and the sleeve 6, so that the marking pen 7 rises away from the ground.

[0044] The above is only a preferred embodiment of the utility model. Any person skilled in the art may modify the utility model by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the utility model shall fall within the scope of protection claimed by the utility model.

Claims

1. A leakage detection device for drainage pipes of roads and bridges, comprising a host (1) and a listening rod (2), wherein the host (1) and the listening rod (2) are connected by an electric wire, and characterized in that: A connecting plate (3) is installed on the outside of the lower end of the listening rod (2); a positioning rod (4) is arranged on the side of the connecting plate (3) away from the listening rod (2); a fixing plate (5) is fixedly installed on the outside of the upper end of the positioning rod (4); a sleeve (6) is installed on the lower end of the positioning rod (4); and a marking pen (7) is installed at the bottom of the sleeve (6).

2. A road and bridge drainage pipe leakage detection device according to claim 1, characterized in that: A handle (21) is installed on one side of the upper end of the listening stick (2), a limit plate (22) is fixedly installed on the outer wall of the upper end of the listening stick (2), and an anti-drop plate (23) is installed on the outer wall of the lower end of the listening stick (2).

3. A road and bridge drainage pipe leakage detection device according to claim 2, characterized in that: The surface of the anti-slip plate (23) is provided with movable holes (231) at intervals, and a ball (232) is installed inside the movable hole (231).

4. A road and bridge drainage pipe leakage detection device according to claim 1, characterized in that: A through hole (31) is provided in the middle of one side of the connecting plate (3) close to the positioning rod (4), an insertion hole (32) is provided in the middle of one side of the connecting plate (3) away from the through hole (31), and a groove (33) is provided on the inner wall of the insertion hole (32).

5. A road and bridge drainage pipe leakage detection device according to claim 1, characterized in that: A through hole (51) is formed on a side of the fixing plate (5) away from the positioning rod (4), and the listening rod (2) movably passes through the through hole (51).

6. A road and bridge drainage pipe leakage detection device according to claim 5, characterized in that: A buffer spring (61) is installed on the outside of the upper end of the sleeve (6), a threaded hole (62) is opened on one side of the lower end of the sleeve (6), a fixing nut (63) is installed on one side of the outer end of the threaded hole (62), and a locking screw (64) is threadedly connected to the inside of the fixing nut (63).

7. A road and bridge drainage pipe leakage detection device according to claim 1, characterized in that: The sleeve (6) is a hollow tubular structure, and a hole is provided at the bottom of the sleeve (6).

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