Foldable ultrasonic open channel flow metering equipment

Abstract

The utility model provides foldable ultrasonic open channel flow metering equipment. A v-shaped main ladder of a ladder assembly is rotationally connected with a strip-shaped extension ladder, and the connecting ends of the v-shaped main ladder and the strip-shaped extension ladder are flush at the limit rotating position; through the V-shaped main ladder and the strip-shaped extension ladder which are rotationally connected, unfolding and folding of the ladder assembly are achieved, the occupied area of the ladder assembly is reduced, and storage and carrying are convenient when measuring point positions are replaced; the sensor carrying frame is embedded in the cushioning rubber base, the two ends of the sensor carrying frame extend to the outer side of the cushioning rubber base, the bottom of the sensor carrying frame is fixedly connected with a cushion table, the cushion table is used for being connected with a fixing lug in a channel wall in a pressing mode, and the fixing lug and the bottom table are fixedly arranged on the channel wall in advance. The angular position of the sensor carrier relative to the bottom table can be adjusted, and the sensor carrier can be fixed only by partially pressing the base plate through the fixing lugs after adjustment.

Description

Technical Field

[0001] The utility model relates to the technical field of flow measurement, in particular to a foldable ultrasonic open channel flow measurement device. Background Art

[0002] Open channel flow metering equipment is a monitoring tool for measuring fluid flow in an open channel or other channel. It includes a flow meter and at least two sets of sensors. When erected, the two sets of sensors are installed on the slope wall and bottom of the channel respectively. When the water flows between the two sets of sensors, the sensors transmit the data to the microcomputer unit in the flow meter and calculate with the data collected by the probe;

[0003] In the prior art, there is a method of using a V-shaped ladder frame to support the probe. When measuring, the V-shaped ladder frame is overlapped on both sides of the open channel. When the probe needs to be moved, the V-shaped ladder frame can be directly moved, thereby avoiding the need to frequently dig out or bury the probe support frame on the land on both sides of the open channel when different measuring points need to be changed. However, this design still has the following defects when used:

[0004] In actual measurement, the width of the open channel is relatively large, generally more than 10 meters, which makes the ladder frame too large to be stored and carried when moving;

[0005] In addition, the sensor corresponding to the probe also needs to be disassembled and moved with the probe. However, the existing sensor support frames are fixed to the channel wall by bolts, and the hole positions are relatively fixed. Once the two sets of sensor support frames on the channel walls on both sides do not correspond (angle offset), they can only be fixed by adding holes after adjusting the position, which is time-consuming and labor-intensive, and also causes damage to the channel body. Utility Model Content

[0006] In view of this, the problem to be solved by the utility model is to provide a foldable ultrasonic open channel flow metering device.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A foldable ultrasonic open channel flow metering device, wherein a V-shaped main ladder and a strip-shaped extension ladder of a ladder frame are rotatably connected and the limit rotation position is that the connection ends of the two are flush;

[0009] The sensor carrier is embedded in the shock-absorbing rubber seat, and both ends of the sensor carrier extend to the outside of the shock-absorbing rubber seat and a pad is fixedly connected to the bottom, so the pad is used for crimping with the fixed ear in the channel wall.

[0010] The V-shaped main ladder and the strip-shaped extension ladder are connected via a hinge, and two ears of the hinge are fixedly connected to the bottom end surfaces of the V-shaped main ladder and the strip-shaped extension ladder respectively.

[0011] A reinforcement sleeve is also fixedly installed on the V-shaped main ladder. The reinforcement sleeve is C-shaped and extends along the length direction of the V-shaped main ladder. The open end face of the reinforcement sleeve is arranged toward the bottom end face of the V-shaped main ladder connected with the ear piece.

[0012] The reinforcing sleeve, the V-shaped main ladder and the strip-shaped extension ladder are all provided with threaded holes for connecting hand-tightening bolts.

[0013] A cover plate is installed on the top of the sensor carrier, and a limit groove matching the sensor is opened on the cover plate. The sensor passes through the limit groove and is installed in the sensor carrier;

[0014] The side wall of the sensor carrier is also configured with a strip-shaped through groove extending along the length direction of the sensor carrier, and the adjusting bolt passes through the strip-shaped through groove and is threadedly connected with the sensor.

[0015] The fixing ear is in an L-shaped structure, the vertical portion of the fixing ear is threadedly connected to a base fixed in the channel wall through a fixing bolt, and the horizontal portion of the fixing ear is pressed on the pad.

[0016] The advantages and positive effects of the utility model are:

[0017] (1) The V-shaped main ladder and the strip-shaped extension ladder are connected by rotation, so the ladder frame can be unfolded and folded, which reduces the floor space of the ladder frame and facilitates storage and transportation when changing the measurement point.

[0018] (2) The fixing ears and the base are pre-fixed on the channel wall. The fixing ears and the pads of the sensor carrier are fastened by crimping. Before the fixing ears and the base are threaded, the angle of the sensor carrier relative to the base can be adjusted, that is, the sensor carrier can be adjusted to the left and right relative to the base. After adjustment, the fixing ears can be only partially crimped on the pads to fix the sensor carrier, without the need to drill new bolt fixing holes on the channel wall.

[0019] (3) The relative positions of adjacent sensors can be adjusted by sliding the adjusting bolt along the strip groove. The sensor can also be rotated to a corresponding angular position and the angular position of the sensor can be adjusted by screwing the adjusting bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0021] In the attached picture:

[0022] Figure 1 This is an overall structural diagram of a foldable ultrasonic open channel flow metering device of the utility model in a first viewing angle;

[0023] Figure 2 It is an overall structural diagram of a foldable ultrasonic open channel flow metering device of the utility model under a second viewing angle;

[0024] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0025] Figure 4 It is an enlarged view of the sensor carrier;

[0026] Figure 5 It is a structural diagram of adding limit bolts to the pad;

[0027] In the figure: ladder frame 12, V-shaped main ladder 121, strip extension ladder 122, sensor carrier 21, shock-absorbing rubber seat 22, pad 23, cover plate 24, limit groove 25, strip through groove 26, adjustment bolt 27, fixing bolt 28, base 29, fixing ear 31, hinge 4, reinforcement sleeve 5, hand-tightening bolt 51, limit bolt 61. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0029] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0031] like Figures 1 to 3 As shown, the utility model provides a foldable ultrasonic open channel flow metering device;

[0032] In terms of the design of the ladder frame 12: the probe is installed at the middle lower end of the V-shaped main ladder 121 of the ladder frame 12, the V-shaped main ladder 121 of the ladder frame 12 is rotatably connected to the two groups of strip extension ladders 122 arranged at both ends thereof, and the extreme rotation position is that the connection ends of the two are flush, that is, after the two ends of the V-shaped main ladder 121 are flush with the strip extension ladder 122, the strip extension ladder 122 can no longer rotate, thereby realizing the deployment of the ladder frame 12, and the strip extension ladder 122 is overlapped on both sides of the open channel during measurement. When the measuring point needs to be changed, the strip extension ladder 122 is rotated in the opposite direction of the extreme rotation position, so that the strip extension ladder 122 moves to the bottom of the V-shaped main ladder 121, thereby realizing the folding of the ladder frame 12, reducing the floor space of the ladder frame 12, and facilitating subsequent storage and transportation;

[0033] Specifically, the V-shaped main ladder 121 is connected to the bar-shaped extension ladder 122 via a hinge 4, and two ears of the hinge 4 are fixedly connected to the bottom end surfaces of the V-shaped main ladder 121 and the bar-shaped extension ladder 122 respectively. When the two ends of the V-shaped main ladder 121 and the bar-shaped extension ladder 122 are completely against each other, they can no longer be rotated and adjusted, thereby limiting their extreme rotation positions.

[0034] Specifically, a reinforcement sleeve 5 is fixedly installed on the V-shaped main ladder 121. The reinforcement sleeve 5 is C-shaped and extends along the length direction of the V-shaped main ladder 121. The open end of the reinforcement sleeve 5 faces the bottom end surface of the V-shaped main ladder 121 connected with the ear piece.

[0035] When the strip extension ladder 122 moves to the extreme rotation position, the reinforcement sleeve 5 abuts against the strip extension ladder 122, and the strip extension ladder 122 enters the reinforcement sleeve 5, and the reinforcement sleeve 5 plays an auxiliary supporting role for the strip extension ladder 122, sharing the pressure borne by the hinge 4.

[0036] Specifically, the reinforcing sleeve 5 and the V-shaped main ladder 121 and the strip-shaped extension ladder 122 are all configured with threaded holes for connecting the hand-tightening bolts 51;

[0037] When the strip extension ladder 122 reaches the extreme rotation position, the threaded holes on the reinforcement sleeve 5 and the strip extension ladder 122 are threadedly connected in sequence by hand-tightening bolts 51 to achieve a fastening connection between the strip extension ladder 122 and the reinforcement sleeve 5. Even if the hinge 4 is damaged during use, the strip extension ladder 122 will not be separated from the V-shaped main ladder 121, thereby preventing the probe on the V-shaped main ladder 121 from falling into the channel.

[0038] like Figure 4As shown, in terms of the design of the sensor carrier 21: the sensor 2 is mounted on the sensor carrier 21, and the sensor carrier 21 is embedded in the shock-absorbing rubber seat 22. The design of the shock-absorbing rubber seat 22 plays a buffering and energy-releasing role when it hits the channel wall, so as to prevent the sensor 2 on the sensor carrier 21 from being displaced due to the impact. Both ends of the sensor carrier 21 extend to the outside of the shock-absorbing rubber seat 22 and the bottom is fixedly connected with a pad 23, so the pad 23 is used to be pressed with the fixing ear 31 in the channel wall;

[0039] The fixing ear 31 is threadedly connected to the base 29 fixed in the canal wall. The fixing ear 31 is L-shaped. The vertical part of the fixing ear 31 is threadedly connected to the base 29 fixed in the canal wall through the vertical fixing bolt 28. The horizontal part of the fixing ear 31 is pressed on the pad 23. The base 29 is pre-fixed in the canal wall according to the measurement point. At least two groups are set in the length. The spacing between the two groups of bases 29 corresponds to the length of the sensor carrier 21. When changing to the corresponding measurement point, the sensor carrier 21 with the shock-absorbing rubber seat 22 is directly placed between the two groups. The base 29 is provided with a fixing ear 31, and the pads 23 below the two ends of the sensor carrier 21 are crimped together by the fixing ear 31. Then the fixing ear 31 is threadedly connected and fixed to the base 29. Since the fixing ear 31 and the pad 23 are crimped and fastened together, before the fixing ear 31 and the base 29 are threadedly fastened together, the angular position of the sensor carrier 21 relative to the base 29 can be adjusted. That is, the sensor carrier 21 can be offset relative to the base 29, and the fixing ear 31 is only partially crimped together with the pad 23. In this way, the sensor carrier 21 can be fixed and adjusted and aligned.

[0040] like Figure 5 As shown, specifically, in order to prevent the sensor carrier 21 from undergoing lateral displacement when subjected to a large external force, in this embodiment, two sets of limit bolts 61 can also be set on the outside of the area where the fixing ear 31 is crimped to the pad 23, and the limit bolts 61 are threadedly connected to the pad 23 in the vertical direction.

[0041] like Figure 4 As shown, specifically, a cover plate 24 is installed on the top of the sensor carrier 21, and a limiting groove 25 adapted to the sensor 2 is opened on the cover plate 24. The sensor 2 passes through the limiting groove 25 and is inserted into the sensor carrier 21, thereby realizing the connection between the sensor 2 and the sensor carrier 21.

[0042] Furthermore, due to measurement requirements, the sensors 2 on the canal walls on both sides need to be aligned. However, in actual installation conditions, the canal walls on both sides mostly have a certain angle difference (different slopes). This results in a situation where even if the sensor carrier 21 is aligned, the sensors 2 on the sensor carrier 21 cannot be aligned. Therefore, in response to the above problem, the relative position and angle of the sensor 2 on the sensor carrier 21 are designed to be adjustable in this application.

[0043] Specifically, the side wall of the sensor carrier 21 is also configured with a strip-shaped through-groove 26 extending along the length direction of the sensor carrier 21, and the adjusting bolt 27 penetrates the strip-shaped through-groove 26 and is threadedly connected to the sensor 2;

[0044] The relative positions of adjacent sensors 2 can be adjusted by sliding the adjusting bolts 27 along the strip-shaped through slots 26 . After the sensors 2 are rotated to corresponding angular positions, they are tightened by adjusting the bolts 27 , thereby achieving angular position adjustment and alignment of the sensors 2 .

[0045] The working principle and working process of the utility model are as follows:

[0046] When installing the probe, the two groups of bar extension ladders 122 are rotated along the outer side of the V-shaped main ladder 121 until they reach the limit rotation position (the connecting ends of the two are flush), at which time the bar extension ladders 122 can no longer be rotated, thereby realizing the unfolding of the ladder frame 12. When measuring, the bar extension ladders 122 are respectively overlapped on both sides of the open channel. When the measuring point needs to be changed, the bar extension ladders 122 are rotated along the inner side of the V-shaped main ladder 121. When the limit rotation position is reached, the bar extension ladders 122 are moved to the bottom of the V-shaped main ladder 121, thereby realizing the folding of the ladder frame 12, reducing the space occupied during transportation, and facilitating subsequent storage and transportation;

[0047] When installing the sensor 2, the sensor carrier 21 with the shock-absorbing rubber seat 22 is directly placed between the two groups of bases 29. According to the working conditions during installation, the angular position of the sensor carrier 21 relative to the base 29 is adjusted, that is, the sensor carrier 21 is adjusted to be offset left and right relative to the base 29 to align with the sensor carrier 21 on the other side of the channel wall, and then the pads 23 under the two ends of the sensor carrier 21 are crimped through the fixing ears 31, and then the fixing ears 31 are threadedly connected and fixed to the base 29 to achieve the fixation of the sensor carrier 21. The relative position between adjacent sensors 2 can also be adjusted by sliding the adjusting bolts 27 along the strip grooves 26. The angular position of the sensor 2 can also be adjusted by rotating the sensor 2 to the corresponding angular position by screwing the adjusting bolts 27.

[0048] The above embodiments of the utility model are described in detail, but the above contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of the utility model should still fall within the scope of this patent.

Claims

1. A foldable ultrasonic open channel flow metering device, characterized in that ； The V-shaped main ladder (121) of the ladder frame (12) is rotatably connected to the strip-shaped extension ladder (122), and the limit rotation position is that the connection ends of the two are flush; The sensor carrier (21) is embedded in the shock absorbing rubber seat (22), the two ends of the sensor carrier (21) extend to the outside of the shock absorbing rubber seat (22) and the bottom is fixedly connected with a pad (23), and the pad (23) is used for pressing with the fixing ear (31) in the channel wall.

2. A foldable ultrasonic open channel flow metering device according to claim 1, characterized in that; The V-shaped main ladder (121) and the strip-shaped extension ladder (122) are connected via a hinge (4), and two ears of the hinge (4) are fixedly connected to the bottom end surfaces of the V-shaped main ladder (121) and the strip-shaped extension ladder (122) respectively.

3. A foldable ultrasonic open channel flow metering device according to claim 2, characterized in that; A reinforcement sleeve (5) is also fixedly mounted on the V-shaped main ladder (121). The reinforcement sleeve (5) is C-shaped and extends along the length direction of the V-shaped main ladder (121). Its open end is arranged facing the bottom end surface of the V-shaped main ladder (121) connected with the ear piece.

4. A foldable ultrasonic open channel flow metering device according to claim 3, characterized in that: The reinforcing sleeve (5), the V-shaped main ladder (121) and the strip-shaped extension ladder (122) are all configured with threaded holes for connecting hand-tightening bolts (51).

5. A foldable ultrasonic open channel flow metering device according to claim 1, characterized in that; A cover plate (24) is installed on the top of the sensor carrier (21), and a limit groove (25) matching the sensor (2) is opened on the cover plate (24). The sensor (2) passes through the limit groove (25) and is then mounted in the sensor carrier (21); The side wall of the sensor carrier (21) is also provided with a strip-shaped through-groove (26) extending along the length direction of the sensor carrier (21), and the adjusting bolt (27) passes through the strip-shaped through-groove (26) and is threadedly connected to the sensor (2).

6. A foldable ultrasonic open channel flow metering device according to claim 5, characterized in that; The fixing ear (31) is L-shaped, the vertical portion of the fixing ear (31) is threadedly connected to a base (29) fixed in the channel wall via a fixing bolt (28), and the horizontal portion of the fixing ear (31) is pressed onto the pad (23).

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