Safety warning equipment for internal inspection operation of drainage pipeline

Abstract

The utility model discloses drainage pipeline internal inspection operation safety warning equipment which comprises a supporting pipe, a single-chip microcomputer output audible and visual alarm is arranged at the top end of the supporting pipe, and an electrode type liquid level switch matched with the single-chip microcomputer output audible and visual alarm is arranged at the bottom end of the interior of the supporting pipe. A plurality of communicating holes are further formed in the supporting pipe, a propeller type flow meter is further arranged at the bottom end of the outer portion of the supporting pipe through a first clamping piece, the propeller type flow meter is matched with a single-chip microcomputer output audible and visual alarm, and the single-chip microcomputer output audible and visual alarm, the electrode type liquid level switch and the propeller type flow meter are connected with an external single-chip microcomputer at the same time. When internal inspection and maintenance of the drainage pipeline are carried out, the water depth and the flow velocity in the drainage pipeline can be dynamically monitored, and when the water depth and the flow velocity in the drainage pipeline exceed threshold values specified by construction in the electrode type liquid level switch and the propeller type flow velocity meter, an alarm can be automatically given, so that the safety of the drainage pipeline is ensured. Therefore, operators in the drainage pipeline can be reminded to evacuate in time.

Description

Technical Field

[0001] The present application relates to the technical field of drainage pipe internal inspection tools, and in particular to a drainage pipe internal inspection operation safety warning device. Background Art

[0002] At present, the maintenance safety operation of urban drainage pipes is an important part of the management of urban municipal drainage pipes. When maintenance workers need to enter the drainage pipes for inspection and maintenance work, in order to ensure the safety of the workers, the standard requires that the drainage pipes for internal inspection must meet the requirements of the pipe diameter must not be less than 0.8m, the flow rate in the pipe must not be greater than 0.5m / s, and the water depth must not be greater than 0.5m. Once the above indicators are not met, the workers should immediately interrupt the work and leave the drainage pipe to ensure safety.

[0003] In actual working conditions, even if the operators ensure that the above indicators are met before going down the pipe, during the internal inspection inside the pipe, there may be sudden changes in flow rate or water depth at any time due to factors such as weather and human communication. The operators may not be able to immediately identify the danger during the inspection and maintenance process. Utility Model Content

[0004] The purpose of this application is to provide a safety warning device for internal inspection of drainage pipes to solve the problem that under actual working conditions, even if the operators ensure that the above-mentioned indicators are met before going down the pipe, there may be sudden changes in flow velocity and water depth in the pipe at any time during the internal inspection of the pipe due to the drainage pipe connecting the entire pipe network system and being affected by factors such as weather and human communication. The operators may not be able to immediately identify the danger during the inspection and maintenance process.

[0005] The present application provides a drainage pipe internal inspection operation safety warning device adopts the following technical solution:

[0006] A safety warning device for internal inspection operations of drainage pipes, comprising a support tube, a single-chip microcomputer output sound and light alarm is arranged at the top of the support tube, an electrode type liquid level switch cooperating with the single-chip microcomputer output sound and light alarm is arranged at the inner bottom of the support tube, a plurality of connecting holes are also opened on the support tube, a propeller type flow meter is also arranged at the outer bottom of the support tube through a first clamping member, the propeller type flow meter cooperates with the single-chip microcomputer output sound and light alarm, and the single-chip microcomputer output sound and light alarm, the electrode type liquid level switch and the propeller type flow meter are connected to the external single-chip microcomputer at the same time.

[0007] Furthermore, a stabilizing device is provided on the support pipe, and the stabilizing device is used to stably install the support pipe in the drainage pipe.

[0008] Furthermore, the stabilizing device includes a stabilizing base arranged at the bottom end of the support tube through a fastening assembly, the stabilizing base is placed on the inner bottom wall of the drainage pipe, and a support buckle is also movably provided on the support tube, a second clamping member is provided between the support buckle and the support tube, and the support buckle is pressed against the inner top wall of the drainage pipe.

[0009] Furthermore, the fastening assembly includes a support seat arranged at the bottom end of the support tube, the support seat is provided with a plurality of countersunk holes, and fastening bolts are arranged in the plurality of countersunk holes, and a plurality of threaded grooves threadably connected to the fastening bolts are provided on the top of the stable base.

[0010] Furthermore, the first clamping member and the second clamping member are both clamps.

[0011] Furthermore, a scale is provided on the surface of the support tube.

[0012] Furthermore, the support seat and the stable base are both made of stainless steel plates.

[0013] Compared with the prior art, the beneficial effects of this application are:

[0014] By installing the support tube in the drainage pipe, the water in the drainage pipe enters the interior of the drainage pipe along the connecting hole, so that the liquid level in the support tube is consistent with the liquid level inside the drainage pipe. When the liquid level in the drainage pipe rises, the liquid level in the support tube is higher than the probe position of the electrode type liquid level switch, and the electrode type liquid level switch sends a signal to the single-chip microcomputer, which feeds the signal back to the single-chip microcomputer output sound and light alarm and issues an alarm.

[0015] In addition, the impeller flowmeter is installed at the bottom of the support pipe through the first clamping member, so that the impeller flowmeter is located below the liquid level in the drainage pipe to monitor the flow rate. When the flow rate is higher than the threshold value specified by the impeller flowmeter, the impeller flowmeter sends a signal to the single-chip microcomputer, and the single-chip microcomputer feeds the signal back to the single-chip microcomputer output sound and light alarm and alarms. In this way, when performing internal inspection and maintenance operations on the drainage pipe, the water depth and flow rate in the drainage pipe can be dynamically monitored. When the water depth and flow rate in the drainage pipe exceed the threshold value specified in the construction of the electrode liquid level switch and the impeller flowmeter, an automatic alarm will be issued, thereby reminding the workers in the drainage pipe to evacuate in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the safety warning device for internal inspection of drainage pipes according to an embodiment of the present application.

[0017] Figure 2 yes Figure 1 Enlarged schematic diagram of part A.

[0018] Figure 3 It is a schematic diagram of the structure of the stabilizing device according to an embodiment of the present application.

[0019] Figure 4 It is a schematic diagram of the structure of the clamp according to the embodiment of the present application.

[0020] Explanation of the reference numerals in the accompanying drawings: 1. Support tube; 11. Connecting hole; 12. Support seat; 13. Countersunk hole; 14. Scale; 2. Single-chip microcomputer output sound and light alarm; 3. Electrode type liquid level switch; 4. Propeller type flow meter; 5. First clamping member; 51. Limit column; 52. Twist bolt; 53. Limit clamp; 6. Stable base; 61. Threaded groove; 7. Support buckle; 8. Second clamping member; 9. Fastening bolt; 10. Drainage pipe; 101. Water level. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-4 This application is described in further detail.

[0022] The present application embodiment discloses a safety warning device for internal inspection of drainage pipes, referring to Figure 1 and Figure 2 In this embodiment, the safety warning device includes a support tube 1, a single-chip output sound and light alarm 2, an electrode type liquid level switch 3, a propeller type flow meter 4 and a first clamp 5. The support tube 1 is a cylindrical structure, and a stabilizing device is provided on the support tube 1. By using the stabilizing device, the support tube 1 can be stably installed inside the drainage pipe 10; and a scale 14 is provided on the surface of the support tube 1. When the support tube 1 is fixedly installed inside the drainage pipe 10, the diameter of the drainage pipe 10 at this time can be determined by the scale 14.

[0023] Meanwhile, in this embodiment, the single-chip output sound and light alarm 2 is installed on the top of the support pipe 1; the electrode type liquid level switch 3 is installed at the inner bottom of the support pipe 1 to monitor the water depth inside the drainage pipe 10, and the electrode type liquid level switch 3 is electrically connected to the single-chip output sound and light alarm 2. Specifically, the probe position of the electrode type liquid level switch 3 is set at 0.5m inside the support pipe 1.

[0024] In addition, a plurality of connecting holes 11 are provided on the support tube 1. When the support tube 1 is installed in the drainage pipe 10, the water in the drainage pipe 10 flows into the support tube 1 along the connecting holes 11, so that the liquid level in the support tube 1 is consistent with the water level 101 in the drainage pipe 10. When the liquid level in the support tube 1 is always lower than the probe position of the electrode type liquid level switch 3, it proves that the water level 101 in the drainage pipe 10 has not risen at this time.

[0025] In addition, in the present embodiment, the impeller flowmeter 4 is fixedly mounted at the outer bottom end of the support tube 1 by means of the first clamping member 5, and the impeller flowmeter 4 is electrically connected to the single-chip microcomputer output sound and light alarm 2; and the first clamping member 5 is a clamp, by which the impeller flowmeter 4 is adjustably fixed on the support tube 1, and the fixed impeller flowmeter 4 is located below the water level 101 of the drainage pipe 10 to monitor the flow rate of water in the drainage pipe 10.

[0026] In addition, in this embodiment, the single-chip microcomputer output sound and light alarm 2, the electrode type liquid level switch 3 and the propeller type flow meter 4 are electrically connected to each other with the external single-chip microcomputer at the same time. When the water level 101 in the drainage pipe 10 rises, the liquid level in the support pipe 1 is higher than the probe position of the electrode type liquid level switch 3, and the electrode type liquid level switch 3 sends a signal to the single-chip microcomputer, and the single-chip microcomputer feeds the signal back to the single-chip microcomputer output sound and light alarm 2 and issues an alarm.

[0027] When the flow rate inside the drainage pipe 10 is higher than the threshold value specified by the impeller flow meter 4, the impeller flow meter 4 sends a signal to the single-chip microcomputer, and the single-chip microcomputer feeds the signal back to the single-chip microcomputer output sound and light alarm 2 and issues an alarm; in this way, when performing internal inspection and maintenance operations on the drainage pipe 10, the water depth and flow rate in the drainage pipe 10 can be dynamically monitored. When the water depth and flow rate in the drainage pipe 10 exceed the threshold value specified in the construction of the electrode liquid level switch 3 and the impeller flow meter 4, an automatic alarm will be issued, thereby reminding the workers in the drainage pipe 10 to evacuate in time.

[0028] The structure of the stabilizing device is described in detail below:

[0029] Specifically, refer to Figure 1 and Figure 3 In this embodiment, the stabilizing device includes a stabilizing base 6, a fastening assembly, a supporting buckle 7, and a second clamping member 8. The stabilizing base 6 is fixedly mounted on the bottom end of the supporting tube 1 through the fastening assembly. When the supporting tube 1 is installed inside the drainage pipe 10, the bottom of the stabilizing base 6 is placed on the inner bottom wall of the drainage pipe 10.

[0030] More specifically, the fastening assembly includes a support seat 12 and fastening bolts 9. The support seat 12 is fixedly mounted on the bottom end of the support tube 1, and a plurality of countersunk holes 13 are provided on the support seat 12; a plurality of fastening bolts 9 are provided, and the plurality of fastening bolts 9 cooperate with the countersunk holes 13, so that the fastening bolts 9 are respectively installed inside the countersunk holes 13 to penetrate the support seat 12.

[0031] At the same time, a plurality of thread grooves 61 are provided on the top of the stable base 6, and the thread grooves 61 are respectively threadedly connected with the fastening bolts 9, so that the fastening bolts 9 can be screwed into the stable base 6 through the thread grooves 61; when the thread grooves 61 correspond to the countersunk holes 13, the fastening bolts 9 are respectively passed through the countersunk holes 13 and screwed into the thread grooves 61, so that the support seat 12 and the stable base 6 are fixedly installed, and the support pipe 1 is made self-standing on the inner bottom wall of the drainage pipe 10.

[0032] In addition, refer to Figure 1 In this embodiment, the support buckle 7 is movably mounted on the tube body of the support tube 1, and a second clamping member 8 is provided between the support buckle 7 and the support tube 1. The second clamping member 8 has the same structure as the first clamping member 5 and is also a clamp. One end of the support buckle 7 is adjustably fixed to the support tube 1 through the clamp. The top of the side of the support buckle 7 facing away from the clamp after fixed installation is pressed against the inner top wall of the drainage pipe 10. In this way, by adjusting the distance between the support buckle 7 and the stable base 6, the support tube 1 can be vertically fixed inside the drainage pipe 10.

[0033] Preferably, the support seat 12 and the stabilizing base 6 are both made of stainless steel plates, so that the support seat 12 and the stabilizing base 6 have the advantages of being resistant to oxidation corrosion and having high strength, thereby increasing the service life of the support seat 12 and the stabilizing base 6.

[0034] Secondly, refer to Figure 1 and Figure 4 In this embodiment, the clamp between the support buckle 7 and the support tube 1 is described in detail below: Specifically, the clamp includes a limiting column 51, a torsion bolt 52, and a limiting clamp 53. Among them, one end of the limiting column 51 is installed on one side of the support buckle 7; a threaded hole is provided on the support buckle 7, and the torsion bolt 52 is threadedly connected in the threaded hole; one side of the limiting clamp 53 is rotatably connected to the threaded end of the torsion bolt 52, and a limiting hole is provided on the limiting clamp 53, and the limiting hole cooperates with the limiting column 51, so that the limiting column 51 passes through the limiting clamp 53 along the limiting hole.

[0035] When the support buckle 7 and the limiting clamp 53 are clamped between the support tube 1, the nut of the twisting bolt 52 is rotated and twisted. Due to the limiting action of the limiting column 51 on the limiting clamp 53, the twisting bolt 52 drives the limiting clamp 53 to slide along the limiting column 51, so that the limiting clamp 53 is close to the support buckle 7, so as to achieve the effect of firmly clamping the support tube 1, thereby facilitating the installation of the support buckle 7 on the support tube 1.

[0036] As for the clamp between the propeller type flow meter 4 and the support tube 1 , the propeller type flow meter 4 is stably mounted on the support tube 1 according to the above structure and steps.

[0037] The implementation principle of a safety warning device for internal inspection of a drainage pipe in the embodiment of the present application is as follows:

[0038] Place the support tube 1 inside the drainage pipe 10, adjust the distance between the support buckle 7 and the stable base 6 to realize that the support tube 1 is vertically fixed inside the drainage pipe 10, measure the diameter of the drainage pipe 10 through the scale 14, and the water depth does not trigger the electrode liquid level switch 3, adjust the propeller flow meter 4 through the first clamp 5 to make it below the water level 101 of the drainage pipe 10, and the propeller flow meter 4 determines that the flow rate has not alarmed, then the operator can be sent to enter the drainage pipe 10 to operate. During the operation, if the single-chip microcomputer output sound and light alarm 2 sounds an alarm, it reminds that the water depth or flow rate exceeds the alarm threshold, thereby reminding the operators in the drainage pipe 10 to evacuate in time.

[0039] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A safety warning device for internal inspection of drainage pipes, characterized in that: The invention comprises a support tube (1), the top end of the support tube (1) is provided with a single-chip microcomputer output sound and light alarm (2), the inner bottom end of the support tube (1) is provided with an electrode type liquid level switch (3) matched with the single-chip microcomputer output sound and light alarm (2), the support tube (1) is also provided with a plurality of connecting holes (11), the outer bottom end of the support tube (1) is also provided with a propeller type flow meter (4) through a first clamping member (5), the propeller type flow meter (4) is matched with the single-chip microcomputer output sound and light alarm (2), the single-chip microcomputer output sound and light alarm (2), the electrode type liquid level switch (3) and the propeller type flow meter (4) are simultaneously connected to an external single-chip microcomputer.

2. A safety warning device for internal inspection of drainage pipes according to claim 1, characterized in that: The support pipe (1) is also provided with a stabilizing device, and the stabilizing device is used to stably install the support pipe (1) in the drainage pipe (10).

3. A safety warning device for internal inspection of drainage pipes according to claim 2, characterized in that: The stabilizing device comprises a stabilizing base (6) arranged at the bottom end of the support tube (1) through a fastening assembly, the stabilizing base (6) being placed on the inner bottom wall of the drainage pipe (10), and a support buckle (7) being movably arranged on the support tube (1), a second clamping member (8) being arranged between the support buckle (7) and the support tube (1), and the support buckle (7) being pressed against the inner top wall of the drainage pipe (10).

4. A safety warning device for internal inspection of drainage pipes according to claim 3, characterized in that: The fastening assembly comprises a support seat (12) arranged at the bottom end of the support tube (1), a plurality of countersunk holes (13) are provided on the support seat (12), and fastening bolts (9) are provided in each of the plurality of countersunk holes (13), and a plurality of thread grooves (61) threadably connected to the fastening bolts (9) are provided on the top of the stable base (6).

5. A safety warning device for internal inspection of drainage pipes according to claim 3, characterized in that: The first clamping member (5) and the second clamping member (8) are both clamps.

6. A safety warning device for internal inspection of drainage pipes according to claim 1, characterized in that: The surface of the support tube (1) is provided with scales (14).

7. A safety warning device for internal inspection of drainage pipes according to claim 4, characterized in that: The support seat (12) and the stable base (6) are both made of stainless steel plates.

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