Depth detection device for plastic composite buried pipeline of fire hydrant

Abstract

The utility model discloses a fire hydrant plastic composite buried pipeline depth detection device, which belongs to the technical field of fire-fighting detection equipment, and comprises a transmitter and a receiver, the rear end of the transmitter is connected to a grounding rod and a pipeline to be detected through a plurality of detection lines, and the upper end surfaces of the transmitter and the receiver are provided with control panels. A disc seat is arranged below the transmitter, a plurality of ground inserting rods are downwards arranged at the edge position of the lower surface of the disc seat in a surrounding mode, two parallel clamping strips are arranged on the upper surface of the disc seat, and the transmitter is embedded in the position between the clamping strips; an arc-shaped groove is formed in the side face of the disc base, and a rotating ring is arranged in the arc-shaped groove in a sleeved mode. According to the depth detection device, on one hand, detection personnel can be helped to rapidly determine the interference range of a primary field, and on the other hand, the inclination when a receiver is held by hand can be reduced, and the accuracy of detection data of the depth of the fire hydrant plastic composite buried pipeline is integrally improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire detection equipment, and more specifically, to a depth detection device for a plastic composite buried pipeline of a fire hydrant. Background Technique

[0002] The outdoor fire hydrant system consists of fire water supply facilities, outdoor water supply pipelines, and outdoor fire hydrants, etc. Among them, for the installation of outdoor water supply pipelines, the inspection department has detailed requirements. Specifically, when the buried pipeline uses a steel wire mesh skeleton plastic composite pipe, the minimum cover depth of the pipe top should not be less than 0.8 meters under the sidewalk, not less than 1 meter under the light vehicle lane, and should be 0.3 meters below the frost line.

[0003] The existing depth detection of steel wire mesh skeleton plastic composite pipes generally uses equipment such as a transmitter and a receiver. By applying a signal with a specific frequency emitted by the transmitter to the pipeline, and then using the receiver to locate and track the depth of the pipeline. In actual detection projects, there are the following problems: First, due to the primary field directly generated by the oscillation coil group of the transmitter, it will interfere with the receiver within a range of 10 - 15 meters, especially having a greater interference on depth detection. Most existing inspectors judge the distance based on experience, which will affect the accuracy of depth detection; Second, theoretically, the detection surface at the lower end of the receiver needs to be vertically attached to the ground to obtain relatively accurate depth information. Any inclination in any direction will cause detection errors. Inevitably, when the inspector holds the receiver for depth measurement, it will be inclined, resulting in a large error in the depth data. Content of the Utility Model

[0004] The purpose of the utility model is to provide a depth detection device for a plastic composite buried pipeline of a fire hydrant. On the one hand, this depth detection device can help inspectors quickly determine the interference range of the primary field, and at the same time can reduce the inclination when holding the receiver, and overall improve the accuracy of the detection data for the depth of the plastic composite buried pipeline of the fire hydrant.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A fire hydrant plastic composite buried pipeline depth detection device comprises a transmitter and a receiver, wherein the rear end of the transmitter is connected to a ground rod and a pipeline to be detected through a plurality of detection lines, the upper end surfaces of the transmitter and the receiver are both provided with a control panel, a disc seat is provided below the transmitter, a plurality of underground insertion rods are arranged around and downward at the edge of the lower surface of the disc seat, two parallel clamping strips are provided on the upper surface of the disc seat, and the transmitter is embedded at the position between the clamping strips, an arc-shaped groove is provided on the side of the disc seat, and a rotating ring is installed inside the arc-shaped groove, a telescopic identification rod is connected to the side of the rotating ring outwardly, and a locking bolt is provided on the surface of the non-telescopic section of the telescopic identification rod, and the telescopic length of the telescopic identification rod can be adjusted within the range of 10-15 meters.

[0007] As a further optimization of this solution, a positioning frame is mounted on the outer periphery of the lower end casing of the receiver, and the positioning frame is upper-positioned at the lower end casing of the receiver through a locking nut on the outer side of the shorter side, and a mounting seat is connected to the outer side of the longer side of the positioning frame through a connecting rod, an electronic level is provided on the upper surface of the mounting seat, and a buzzer is provided on the lower surface of the mounting seat.

[0008] As a further optimization of this solution, the plurality of underground insertion rods are inserted into the ground at the end of the detection pipeline, and the grounding rod is inserted into the soil.

[0009] As a further optimization of this solution, the electronic level and buzzer are both equipped with a built-in power supply and an external switch button.

[0010] As a further optimization of this solution, the horizontality of the mounting base is the same as the horizontality of the lower end surface of the receiver touching the ground, and an alarm is sounded through a buzzer when the tilt of the electronic level exceeds a preset value.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model provides a disc seat and a telescopic marking rod and other structures below the transmitter. In actual use, on the one hand, the transmitter can be stably placed, and at the same time, the length of the telescopic marking rod can be changed according to the detection signal frequency requirements of different transmitter settings, so that the detection personnel can intuitively see the distance to be away from the transmitter and stand in the outer area of the telescopic marking rod to start the detection work, thereby reducing the interference of the primary field of the transmitter on the receiver and improving the depth detection accuracy. On the other hand, an electronic level and a buzzer structure are provided on the lower end casing of the receiver, and the hand-held horizontality of the receiver is detected in real time by the electronic level. When the hand-held tilt angle of the detection personnel is too large and exceeds the threshold set by the electronic level, the buzzer alarms to remind the detection personnel to adjust the hand-held angle so that the detection surface at the lower end of the receiver is better vertically fitted to the ground, thereby obtaining more accurate depth detection information. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the detection device of the present utility model;

[0014] Figure 2 This is a schematic diagram of the connection structure of the disc base of the present utility model;

[0015] Figure 3 This is a schematic diagram of the installation structure of the positioning frame of the present utility model;

[0016] In the figure: 1. Transmitter; 2. Detection line; 3. Receiver; 4. Disc base; 5. Telescopic identification rod; 6. Locking bolt; 7. Control panel; 8. Card strip; 9. Rotating ring; 10. Ground insertion rod; 11. Handle; 12. Positioning frame; 13. Locking nut; 14. Link rod; 15. Mounting seat; 16. Electronic level; 17. Buzzer. Specific embodiments

[0017] In order to make the technical means, creative features, achieved purposes and effects realized by the utility model easy to understand, the present utility model will be further described below with reference to specific drawings.

[0018] In order to solve the problem that the primary field directly generated by the oscillation coil group of the existing transmitter 1 will interfere with the receiver 2 within a range of 10 - 15 meters, especially having a greater interference on depth detection. Most of the existing detection personnel judge the distance based on experience, which will affect the accuracy of depth detection. When the detection personnel hold the receiver 2 for depth measurement, it is inevitable to tilt, resulting in a large error in depth data. As Figure 1 shown, this application includes a transmitter 1 and a receiver 3. The rear end of the transmitter 1 is connected to a grounding rod and a pipeline to be measured through a plurality of detection lines 2. Control panels 7 are provided on the upper end faces of both the transmitter 1 and the receiver 2. A disc base 4 is provided below the transmitter;

[0019] As Figure 2 shown, a plurality of ground insertion rods 10 are provided around and downward at the edge position of the lower surface of the disc base 4. Two parallel card strips 8 are provided on the upper surface of the disc base 4, and the transmitter 1 is embedded at the position between the card strips 8. An arc-shaped groove is formed on the side surface of the disc base 4, and a rotating ring 9 is sleeved inside the arc-shaped groove. A telescopic identification rod 5 is connected outward on the side surface of the rotating ring 9, and a locking bolt 6 is provided on the surface of the non-telescopic section of the telescopic identification rod 5. The telescopic length of the telescopic identification rod 5 can be adjusted within a range of 10 - 15 meters;

[0020] As Figure 3As shown, a positioning frame 12 is sleeved around the outer periphery of the lower housing of the receiver 2. The positioning frame 12 is limited on the lower housing of the receiver 2 by a locking nut 13 on the outer side of the shorter side. A mounting seat 15 is connected to the outer side of the longer side of the positioning frame 12 through a connecting rod 14. An electronic level 16 is provided on the upper surface of the mounting seat 15 and a buzzer 17 is provided on the lower surface of the mounting seat 15. Both the electronic level 16 and the buzzer 17 have built-in power supplies and external switch buttons.

[0021] During specific use, insert the disc seat 4 into the ground at the end of the detection pipeline. Insert the transmitter 1 into the card strip. At the same time, connect the detection line 2 to the grounding rod and the pipeline to be detected. Adjust the signal frequency of the transmitter 1 through the control panel 7, and adjust the telescopic length of the telescopic marking rod 5 according to the frequency. After starting the transmitter 1, the staff holds the handle 11 of the receiver 3 and starts the detection work from the outer area of the telescopic marking rod 5 to reduce the interference of the primary field of the transmitter 1 on the receiver 3. First, swing the receiver 3 left and right to find the position with the maximum signal intensity and start the detection work. During the process, turn on the switches of the electronic level 16 and the buzzer 17, and attach the lower detection surface of the receiver 3 to the ground. The electronic level 16 detects the holding level of the receiver 3 in real time. When the holding angle of the detector is too large and exceeds the threshold set by the electronic level 16, the buzzer 17 gives an alarm to remind the detector to adjust the holding angle. Obtain and record the depth data of the fire hydrant plastic composite buried pipeline by pressing the button on the control panel 7 of the receiver 3. Then lift and horizontally move the receiver 3 to start the pipeline depth detection work at the next position. After the detection is completed, compare the obtained data with the depth standard of the fire hydrant plastic composite buried pipeline to see if it meets the construction requirements.

[0022] All the standard parts used in the present utility model can be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0023] The above shows and describes the basic principles, main features, and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A depth detection device for a plastic composite buried fire hydrant pipeline, comprising a transmitter and a receiver. The rear end of the transmitter is connected to a grounding rod and a pipeline to be measured through a plurality of detection lines. Control panels are provided on the upper end faces of both the transmitter and the receiver. It is characterized in that: A disc base is provided below the transmitter. A number of ground-inserting rods are circumferentially and downwardly provided at the edge position of the lower surface of the disc base. Two parallel clamping bars are provided on the upper surface of the disc base, and the transmitter is embedded at the position between the clamping bars. An arc-shaped groove is provided on the side surface of the disc base, and a rotating ring is sleeved inside the arc-shaped groove. An extendable identification rod is connected outwardly from the side surface of the rotating ring, and a locking bolt is provided on the surface of the non-extendable section of the extendable identification rod. The extendable length of the extendable identification rod can be adjusted within the range of 10-15 meters.

2. The depth detection device for a plastic composite buried fire hydrant pipeline according to claim 1, characterized in that: A positioning frame is sleeved around the outer periphery of the lower end housing of the receiver. The positioning frame is limited on the lower end housing of the receiver by a locking nut on the outer side of the shorter side. An installation seat is connected to the outer side of the longer side of the positioning frame through a connecting rod. An electronic level is provided on the upper surface of the installation seat, and a buzzer is provided on the lower surface of the installation seat.

3. The depth detection device for a plastic composite buried fire hydrant pipeline according to claim 2, characterized in that: The several ground-inserting rods are inserted into the ground surface at the end of the detection pipeline, and the grounding rod is inserted into the soil.

4. The depth detection device for a plastic composite buried fire hydrant pipeline according to claim 3, characterized in that: Both the electronic level and the buzzer are internally powered and externally provided with switch buttons.

5. The depth detection device for a plastic composite buried fire hydrant pipeline according to claim 4, characterized in that: The levelness of the installation seat is the same as the levelness of the ground-contact end of the lower end surface of the receiver. When the inclination of the electronic level exceeds a preset value, an alarm is given by the buzzer.

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