Large pipeline flow velocity detection device

Abstract

The utility model relates to the technical field of flow velocity detection devices, and discloses a large pipeline flow velocity detection device which comprises a large municipal drainage pipe, a manhole is arranged on the drainage pipe, a locking piece is fixedly installed on the inner wall of the manhole, the manhole is provided with a supporting rod through the locking piece, and the supporting rod is connected with the drainage pipe. A rotating rod is rotatably connected to the lower end of the supporting rod, a probe for the Doppler flowmeter is installed on one side of the rotating rod, a push-pull rod is rotatably connected to one end of the rotating rod, a connecting lug is rotatably connected to the upper end of the push-pull rod, a lantern ring is fixedly connected to the connecting lug, and the supporting rod is sleeved with the lantern ring; the upper side and the lower side of the lantern ring are provided with two locking nuts which are installed on the supporting rod in a threaded mode. When the Doppler flowmeter is inclined, a person can adjust the angle of the probe to be parallel to the water flow direction of the drainage pipe, so that the detection precision of the Doppler flowmeter is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of flow velocity detection devices, in particular to a large-scale pipeline flow velocity detection device. Background Art

[0002] The construction of municipal drainage pipes is an important part of municipal engineering construction. Municipal drainage pipes are a kind of urban public facilities, which refer to the pipes for buildings to discharge sewage and rainwater; they also refer to the underground passages for cities, factories or villages to discharge sewage and rainwater. Municipal rainwater pipes are mostly made of cement pipes or large PVC pipes, ranging from 100mm to 3000mm, and all use large diameter pipes to divert rainwater.

[0003] In order to better manage municipal drainage pipes and monitor water flow rates, existing municipal agencies will install special flow rate detection devices on the drainage pipes to detect the liquid in the municipal drainage pipes. Doppler flowmeters are often used in existing municipal drainage pipes to detect the flow rate of fluids in municipal drainage pipes. During the installation of existing Doppler flowmeters, the Doppler flow sensor is extended through a bracket and installed in the municipal drainage pipe. The bracket is generally installed in the drainage pipe inspection well to monitor the fluid in the drainage pipe. A device for installing a flowmeter in a municipal drainage pipe is similar to that disclosed in announcement number CN205642483U.

[0004] During the actual installation of the above-mentioned existing Doppler flowmeter, the applicant found that: since many municipal drainage pipes are installed at a certain angle, the water flow in the drainage pipe is inclined, and the existing Doppler flow sensor is generally installed horizontally, and the angle cannot be adjusted, resulting in the sensor being unable to be parallel to the inclination of the municipal drainage pipe, and thus resulting in the sensor detection end being unable to be aligned parallel to the water flow direction, which may affect the detection accuracy of the flow rate. In order to solve the above-mentioned problems, a large-scale pipeline flow rate detection device is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a large-scale pipeline flow velocity detection device in order to solve the above-mentioned problems.

[0006] The technical solution adopted by the utility model is as follows: a large-scale pipeline flow velocity detection device, including a large-scale municipal drainage pipe, a maintenance well is arranged on the drainage pipe, a locking piece is fixedly installed on the inner wall of the maintenance well, a support rod is installed on the maintenance well through the locking piece, the lower end of the support rod is rotatably connected with a rotating rod, a probe for a Doppler flowmeter is installed on one side of the rotating rod, one end of the rotating rod is rotatably connected with a push-pull rod, the upper end of the push-pull rod is rotatably connected with a connecting ear, a collar is fixedly connected to the connecting ear, the collar is sleeved on the support rod, and two locking nuts threadedly installed on the support rod are arranged on the upper and lower sides of the collar.

[0007] In a preferred embodiment, the probe is electrically connected to a Doppler flowmeter acquisition host via a cable.

[0008] In a preferred embodiment, two fixing plates are fixedly connected to the rotating rod, connecting plates are fixedly connected to both sides of the probe, and the connecting plates are fixedly mounted on the fixing plates by bolts.

[0009] In a preferred embodiment, the support rod includes a main vertical rod and a plurality of slave vertical rods, the rotating rod is rotatably installed on the lower end of the main vertical rod, a threaded hole 1 is provided at the top end of the main vertical rod, a threaded column is constructed at the lower end of the slave vertical rod, the main vertical rod is threadedly connected to the threaded column of the slave vertical rod through the threaded hole 1, a threaded hole 2 is provided at the upper end of the slave vertical rod, the slave vertical rod is threadedly connected to the threaded column on another slave vertical rod through the threaded hole 2.

[0010] In a preferred embodiment, the locking member includes a base and a locking plate, the base is fixedly mounted on the inner wall of the inspection well, the locking plate is fixedly mounted on the base by bolts, the base is provided with an arc-shaped groove 1 adapted to the vertical rod, and the locking plate is provided with an arc-shaped groove 2 adapted to the vertical rod.

[0011] In a preferred embodiment, the collar is sleeved on the main vertical rod, the outer wall of the main vertical rod is provided with an external thread, and the locking nut is threadedly connected to the external thread on the main vertical rod.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0013] 1. In the utility model, when the drain pipe is in an inclined state, the personnel can adjust the upper and lower positions of the collar on the support rod. At this time, the connecting ear can drive the push-pull rod to push and pull the rotating rod, so that the rotating rod can rotate on the support rod 4, thereby adjusting the angle of the rotating rod, and then adjusting the inclination of the probe to adapt to the inclination of the drain pipe. After the angle is determined, the position of the collar can be locked by two locking nuts, thereby locking the angle of the probe, so that the angle of the probe is aligned parallel to the water flow direction in the drain pipe, thereby improving the detection accuracy, and the adjustment structure is simple, which is worthy of popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the exploded three-dimensional structure of the main rod in the utility model.

[0017] Markings in the figure: 1-drain pipe, 2-inspection well, 3-locking piece, 4-support rod, 5-rotating rod, 6-probe, 7-push-pull rod, 8-connecting ear, 9-ring, 10-locking nut, 11-collection host, 12-fixing plate, 13-connecting plate, 14-main vertical rod, 15-slave vertical rod, 16-threaded hole 1, 17-threaded column, 18-threaded hole 2, 19-base, 20-locking plate, 21-arc groove 1, 22-arc groove 2, 23-external thread. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The following will be combined Figure 1-Figure 3 A large-scale pipeline flow velocity detection device according to an embodiment of the utility model is described in detail.

[0020] Example:

[0021] The utility model provides a large pipeline flow velocity detection device, referring to Figures 1 to 3 As shown, it includes a large municipal drainage pipe 1, a maintenance well 2 is arranged on the drainage pipe 1, a locking piece 3 is fixedly installed on the inner wall of the maintenance well 2, a support rod 4 is installed on the maintenance well 2 through the locking piece 3, the lower end of the support rod 4 is rotatably connected with a rotating rod 5, and a probe 6 for a Doppler flowmeter is installed on one side of the rotating rod 5. In this structure, the probe 6 at the lower part of the support rod 4 is extended into the drainage pipe 1, and then the support rod 4 is fixed in the maintenance well 2 through the locking piece 3, so that the probe 6 is fixed in the drainage pipe 1, and then the water flow rate in the drainage pipe 1 is detected.

[0022] refer to Figures 1 to 3 As shown, the probe 6 is electrically connected to a Doppler flowmeter acquisition host 11 through a cable. In this structure, the probe 6 and the acquisition host 11 form a Doppler flowmeter.

[0023] refer to Figures 1 to 3 As shown, two fixing plates 12 are fixedly connected to the rotating rod 5, and connecting plates 13 are fixedly connected to both sides of the probe 6. The connecting plates 13 are fixedly installed on the fixing plates 12 by bolts. In this structure, the connecting plates 13 are connected to the fixing plates 12 by bolts, so that the probe 6 is fixedly installed on the rotating rod 5.

[0024] It should be noted that the detection principles of the above-mentioned Doppler flowmeters have been made public, and the probe 6 and the acquisition host 11 are both existing equipment, the model used is: PD-880PLUS, and the specific internal structures have been made public.

[0025] refer to Figures 1 to 3 As shown, the locking piece 3 includes a base 19 and a locking plate 20. The base 19 is fixedly mounted on the inner wall of the inspection well 2. The locking plate 20 is fixedly mounted on the base 19 by bolts. The base 19 is provided with an arc groove 1 21 adapted to the vertical rod 15. The locking plate 20 is provided with an arc groove 22 adapted to the vertical rod 15. This structure utilizes the base 19 and the locking plate 20 to form a locking piece 3 for the support rod 4, thereby fixing and locking the support rod 4. The arc groove 1 21 and the arc groove 22 can better adapt to clamp the vertical rod 15, thereby ensuring the fixing strength.

[0026] refer to Figures 1 to 3 As shown, one end of the rotating rod 5 is rotatably connected to a push-pull rod 7, and the upper end of the push-pull rod 7 is rotatably connected to a connecting ear 8, and a collar 9 is fixedly connected to the connecting ear 8, and the collar 9 is sleeved on the support rod 4. Two locking nuts 10 threadedly installed on the support rod 4 are provided on the upper and lower sides of the collar 9. In this structure, when the drain pipe 1 is in an inclined state, the personnel can adjust the upper and lower positions of the collar 9 on the support rod 4. At this time, the connecting ear 8 can drive the push-pull rod 7 to push and pull the rotating rod 5, and then the rotating rod 5 is rotated on the support rod 4, so as to adjust the angle of the rotating rod 5, and then adjust the inclination of the probe 6 to adapt to the inclination of the drain pipe 1, and after the angle is determined, the position of the collar 9 can be locked by two locking nuts 10, thereby locking the angle of the probe 6, so that the angle of the probe 6 is aligned parallel to the water flow direction in the drain pipe 1, thereby improving the detection accuracy.

[0027] refer to Figures 1 to 3 As shown, the support rod 4 includes a main vertical rod 14 and a plurality of slave vertical rods 15, and the rotating rod 5 is rotatably installed at the lower end of the main vertical rod 14. A threaded hole 16 is provided at the top of the main vertical rod 14, a threaded column 17 is constructed at the lower end of the slave vertical rod 15, and a threaded hole 2 18 is provided at the upper end of the slave vertical rod 15. In this structure, the main vertical rod 14 is threadedly connected with the threaded column 17 of the slave vertical rod 15 through the threaded hole 16, and the slave vertical rod 15 is threadedly connected with the threaded column 17 on another slave vertical rod 15 through the threaded hole 2 18, thereby forming a support rod 4 structure, and the probe 6 is installed so that the personnel can add slave vertical rods 15 to increase the length of the support rod 4 or reduce the number of slave vertical rods 15 to reduce the length of the support rod 4 according to the installation requirements, thereby realizing free adjustment of the length of the support rod 4.

[0028] refer to Figures 1 to 3As shown, the collar 9 is sleeved on the main vertical rod 14, the outer wall of the main vertical rod 14 is provided with an external thread 23, and the locking nut 10 is threadedly connected with the external thread 23 on the main vertical rod 14. This structure utilizes the external thread 23 of the main vertical rod 14 to connect with the locking nut 10, thereby locking the position of the collar 9.

[0029] The implementation principle of a large-scale pipeline flow rate detection device of the embodiment of the present application is as follows: during installation, the personnel first threadably connect the corresponding number of slave vertical rods 15 through the threaded column 17 and the threaded hole 18 according to actual needs, and then the main vertical rod 14 is threadably connected to the lowest slave vertical rod 15 through the threaded column 17 and the threaded hole 16, so as to form the support rod 4, and then the personnel connect the connecting plate 13 with the fixing plate 12 through bolts, so as to fix the probe 6 on the rotating rod 5, and then the personnel first position and fix the base 19 of the locking piece 3 on the detection In the well repair 2, the support rod 4 is then inserted into the arc groove 21 of the base 19, and then the probe 6 is adjusted to align with the flow direction of the water flow, and the height of the probe 6 is adjusted at the same time, and then the locking plate 20 is connected to the base 19 to lock the support rod 4, and then the personnel use the measuring equipment to measure the distance between the two sides of the rotating rod 5 and the bottom of the inner cavity of the drainage pipe 1, and then the personnel adjust the position of the collar 9 on the main vertical rod 14 until the rotating rod 5 is parallel to the bottom of the drainage pipe 1, and then the position of the collar 9 can be locked by two locking nuts 10, thereby locking the angle of the probe 6;

[0030] During detection, the angle of the probe 6 is aligned parallel to the direction of water flow in the drain pipe 1, thereby improving detection accuracy.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A large-scale pipeline flow velocity detection device, comprising a large-scale municipal drainage pipe (1), characterized in that: The drainage pipe (1) is provided with an inspection well (2), a locking piece (3) is fixedly installed on the inner wall of the inspection well (2), a support rod (4) is installed on the inspection well (2) through the locking piece (3), the lower end of the support rod (4) is rotatably connected to a rotating rod (5), one side of the rotating rod (5) is provided with a probe (6) for a Doppler flowmeter, one end of the rotating rod (5) is rotatably connected to a push-pull rod (7), the upper end of the push-pull rod (7) is rotatably connected to a connecting ear (8), a collar (9) is fixedly connected to the connecting ear (8), the collar (9) is sleeved on the support rod (4), and two locking nuts (10) threadedly installed on the support rod (4) are provided on the upper and lower sides of the collar (9).

2. A large-scale pipeline flow velocity detection device as claimed in claim 1, characterized in that: The probe (6) is electrically connected to a Doppler flowmeter collection host (11) via a cable.

3. A large-scale pipeline flow velocity detection device as claimed in claim 1, characterized in that: Two fixing plates (12) are fixedly connected to the rotating rod (5), and connecting plates (13) are fixedly connected to both sides of the probe (6), and the connecting plates (13) are fixedly mounted on the fixing plates (12) by means of bolts.

4. A large-scale pipeline flow velocity detection device as claimed in claim 1, characterized in that: The support rod (4) comprises a main vertical rod (14) and a plurality of subordinate vertical rods (15); the rotating rod (5) is rotatably mounted on the lower end of the main vertical rod (14); a threaded hole (16) is provided at the top end of the main vertical rod (14); a threaded column (17) is configured at the lower end of the subordinate vertical rod (15); the main vertical rod (14) is threadedly connected to the threaded column (17) of the subordinate vertical rod (15) through the threaded hole (16); a threaded hole (18) is provided at the upper end of the subordinate vertical rod (15); the subordinate vertical rod (15) is threadedly connected to the threaded column (17) on another subordinate vertical rod (15) through the threaded hole (18).

5. A large-scale pipeline flow velocity detection device as claimed in claim 4, characterized in that: The locking member (3) comprises a base (19) and a locking plate (20); the base (19) is fixedly mounted on the inner wall of the inspection well (2); the locking plate (20) is fixedly mounted on the base (19) by bolts; the base (19) is provided with an arc-shaped groove (21) adapted to the vertical rod (15); and the locking plate (20) is provided with an arc-shaped groove (22) adapted to the vertical rod (15).

6. A large-scale pipeline flow velocity detection device as claimed in claim 5, characterized in that: The collar (9) is sleeved on the main vertical rod (14); the outer wall of the main vertical rod (14) is provided with an external thread (23); and the locking nut (10) is threadedly connected to the external thread (23) on the main vertical rod (14).

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