Water flow sensor

Abstract

The utility model discloses a water flow sensor, which relates to the technical field of water flow sensors and comprises an electromagnetic flowmeter, a fixed support leg and an auxiliary mounting component, wherein the electromagnetic flowmeter consists of a sensor main body, a measuring tube, a connecting flange and a transmitter; the device comprises a limiting unit and a lifting unit, the limiting unit is used for primarily limiting the electromagnetic flowmeter between two pipelines; and the lifting unit is used for providing a lifting part for the electromagnetic flowmeter and carrying out contraction operation on the limiting unit at the same time. The electromagnetic flowmeter can be stably placed by arranging the fixing supporting legs, meanwhile, the purpose of protecting a transmitter can be achieved by arranging the auxiliary installation assembly, the two n-shaped plates and the two L-shaped handles in a matched mode, in addition, when the electromagnetic flowmeter is installed, the limiting rod is connected with a pipeline flange in a sleeved mode, and therefore the electromagnetic flowmeter can be installed more stably. Preliminary limiting of the electromagnetic flowmeter can be achieved, lifting is not needed when bolts are installed in the later period, the installation efficiency is further improved, and installation operation is easier.

Description

TECHNICAL FIELD

[0001] The utility model relates to water flow sensor technical field, specifically a water flow sensor. BACKGROUND

[0002] Water flow sensor is used for detecting water flow existence, flowing state or measuring water flow device collectively, and water flow sensor contains multiple technical types (such as turbine type, ultrasonic type, mechanical type etc.);

[0003] Electromagnetic flowmeter is a type of water flow sensor, and electromagnetic flowmeter works according to Faraday's law of electromagnetic induction, and when conducting liquid makes cutting magnetic induction line movement in magnetic field, induced electromotive force is generated, and the size is proportional to flow velocity, and the flow of water is calculated by measuring induced electromotive force.

[0004] The electromagnetic flowmeter in the market is installed through the flange structure at both ends, and the overall front view is "convex", and the electromagnetic flowmeter with this shape cannot be stably placed through flange contact ground, based on this, a water flow sensor is provided. UTILITY MODEL CONTENTS

[0005] The utility model aims at: in order to solve the problem in the above background, provide a kind of water flow sensor.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of water flow sensor, including the electromagnetic flowmeter of sensor main body, measuring pipe, connecting flange, transmitter, the sensor main body is fixed in the middle outer side of measuring pipe, the connecting flange is fixed to the both ends of measuring pipe, the transmitter is installed in the top of sensor main body, the outside annular of connecting flange is uniformly fixed with four fixed legs, and the stable placement of electromagnetic flowmeter is realized by the bottom end contact ground of two downward fixed legs;

[0007] One end of the fixed leg is provided with a through hole penetrating the other end of the fixed leg, the outer side of the measuring pipe is provided with an auxiliary installation assembly penetrating the through hole, and the auxiliary installation assembly is used to provide auxiliary limiting for the installation of electromagnetic flowmeter;

[0008] The auxiliary installation assembly includes a limiting unit and a lifting unit.

[0009] The limiting unit is used for sleeve joint limiting with the flange on the pipeline, so as to realize the preliminary limiting of electromagnetic flowmeter in the middle of two pipes.

[0010] The lifting unit is used to provide lifting position for electromagnetic flowmeter, and to shrink the limiting unit.

[0011] As a further scheme of the utility model: the limiting unit includes ring seat, limiting rod;

[0012] The ring seat is provided with two, two ring seats are respectively located at both ends of the sensor main body and the middle of the connecting flange and are sleeved on the outside of the measuring pipe.

[0013] The limiting rod is symmetrically fixed to one end of the two ring seats away from each other and penetrates the penetration port, and the four limiting rods at the same end protrude the end of the connecting flange and are sleeved with the flange on the pipeline, for realizing the preliminary limiting of the electromagnetic flowmeter.

[0014] As a further scheme of the utility model: the lifting unit includes n-shaped plate, L-shaped handle, W-shaped elastic sheet;

[0015] The n-shaped plate is fixed outside the ring seat and extends above the sensor main body, the L-shaped handle is symmetrically fixed to the top of the two n-shaped plates and is located above the transmitter, and the L-shaped handle is used for providing a handheld position for lifting operation;

[0016] The W-shaped elastic sheet is distributed at the bottom of the two L-shaped handles, and the two ends of the W-shaped elastic sheet are respectively connected and fixed with the two n-shaped plates, and the W-shaped elastic sheet is used for providing a mutual repulsion thrust for the two n-shaped plates.

[0017] As a further scheme of the utility model: the inner diameter of the ring seat is greater than the outer diameter of the measuring pipe and less than the outer diameter of the sensor main body, when the ring seat is attached with the end face of the sensor main body, the end face of the limiting rod is flush with the end face of the connecting flange.

[0018] As a further scheme of the utility model: the penetration port is in contact with the outer side surface of the connecting flange, the inner diameter of the distribution track of the plurality of limiting rods distributed in a ring shape matches the outer diameter of the flange on the connecting flange and the pipeline.

[0019] Compared with the prior art, the utility model has the beneficial effects that:

[0020] By setting the fixed supporting leg, the stable placement of the electromagnetic flowmeter can be realized, at the same time, by setting the auxiliary mounting assembly, the two n-shaped plates and the two L-shaped handles can be matched to achieve the purpose of protecting the transmitter, in addition, when the electromagnetic flowmeter is installed, the limiting rod and the pipeline flange are sleeved, the preliminary limiting of the electromagnetic flowmeter can be realized, the bolt does not need to be lifted during the later installation, the installation efficiency is further improved, and the installation operation is more relaxed. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 It is the structural schematic view of the utility model;

[0022] Fig. 2 It is the structural bottom view of the utility model;

[0023] Fig. 3 The utility model discloses a structure split schematic view.

[0024] In the drawing: 1, electromagnetic flowmeter;101, sensor main body;102, measuring tube;103, connecting flange;104, transmitter;2, fixed leg;3, through -going opening;4, auxiliary installation component;401, ring seat;402, limiting rod;403, n type board;404, L type handle;405, W type elastic sheet. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative work belong to the scope of the utility model protection.

[0026] Please refer to Figs. 1-3 In the embodiments of the utility model, a water flow sensor comprises an electromagnetic flowmeter 1 composed of a sensor main body 101, a measuring tube 102, a connecting flange 103 and a transmitter 104. The sensor main body 101 is fixed to the middle outer side of the measuring tube 102. The connecting flange 103 is symmetrically fixed to the two ends of the measuring tube 102. The transmitter 104 is installed on the top of the sensor main body 101. Four fixed legs 2 are uniformly fixed on the outer side ring of the connecting flange 103. The two downward fixed legs 2 contact the ground at the bottom end to realize stable placement of the electromagnetic flowmeter 1.

[0027] A through -going opening 3 is formed at one end of the fixed leg 2 and extends through the other end of the fixed leg 2. An auxiliary installation component 4 is arranged on the outer side of the measuring tube 102 and penetrates the through -going opening 3. The auxiliary installation component 4 provides auxiliary limiting for installation of the electromagnetic flowmeter 1.

[0028] The auxiliary installation component 4 comprises a limiting unit and a lifting unit.

[0029] The limiting unit is used for sleeving and limiting with the flange on the pipeline to realize preliminary limiting of the electromagnetic flowmeter 1 in the middle of the two pipelines.

[0030] The lifting unit is used for providing a lifting position for the electromagnetic flowmeter 1 and performing contraction operation for the limiting unit.

[0031] The limiting unit comprises a ring seat 401 and a limiting rod 402.

[0032] The ring seat 401 is provided with two ring seats 401, and the two ring seats 401 are respectively located at the two ends of the sensor main body 101 and the middle of the connecting flange 103 and are sleeved on the outer side of the measuring tube 102.

[0033] The limiting rods 402 are symmetrically fixed to the ends of the two ring seats 401 away from each other and pass through the through holes 3, and the four limiting rods 402 on the same end protrude to connect the end of the flange 103 and are sleeved with the flange on the pipeline, so as to realize the preliminary limiting of the electromagnetic flowmeter 1.

[0034] The lifting unit includes n-shaped plates 403, L-shaped handles 404, and W-shaped elastic sheets 405.

[0035] The n-shaped plates 403 are fixed outside the ring seats 401 and extend above the sensor main body 101, the L-shaped handles 404 are symmetrically fixed to the top of the two n-shaped plates 403 and are above the transmitter 104, and the L-shaped handles 404 are used to provide a hand holding position for lifting operation.

[0036] The W-shaped elastic sheets 405 are distributed at the bottom of the two L-shaped handles 404, and the two ends of the W-shaped elastic sheets 405 are respectively connected and fixed with the two n-shaped plates 403, and the W-shaped elastic sheets 405 are used to provide a mutual pushing force for the two n-shaped plates 403.

[0037] The through holes 3 are in contact with the outer side of the connecting flange 103, and the distribution track inner diameter of the multiple limiting rods 402 distributed in a ring shape matches the outer diameter of the connecting flange 103 and the flange on the pipeline.

[0038] In this embodiment: It needs to be pointed out that: the electromagnetic flowmeter 1 is a common type flange type electromagnetic flowmeter on the market (such as: FM40 type electromagnetic flowmeter, EMFM KFD9000 type electromagnetic flowmeter), and its flow monitoring principle is the same, therefore, the flow monitoring principle is not described in detail here;

[0039] When the electromagnetic flowmeter 1 is stored and placed daily, the four downward distributed fixed legs 2 of the two connecting flanges 103 can be removed to contact the ground, so that the electromagnetic flowmeter 1 can be stably placed, at the same time, the two n-shaped plates 403 and the two L-shaped handles 404 can form a protective effect on the front and rear ends, the two sides and the top of the transmitter 104, when the electromagnetic flowmeter 1 is tilted due to accidental circumstances, the transmitter 104 can be effectively prevented from contacting and colliding with the ground, so as to achieve the purpose of protecting the transmitter 104;

[0040] When the electromagnetic flowmeter 1 is transferred, the two L-shaped handles 404 can be gripped for lifting operation, which is more convenient for transfer, in addition, when the electromagnetic flowmeter 1 is transferred, the L-shaped handles 404 can also be lifted, and in this process, the W-shaped elastic sheets 405 are squeezed and contracted, the two ring seats 401 move close to each other, and the end surface of the limiting rod 402 is flush with the end surface of the connecting flange 103, so that the limiting rod 402 does not interfere with the butt joint of the connecting flange 103 and the flange on the pipeline.

[0041] After the flange 103 and the flange on the pipeline are connected, the pressure on the L-shaped handle 404 is slowly released (it should be noted that the sensor body 101 can be lifted by the other hand at this time to ensure the stability of the electromagnetic flowmeter 1), at this time, the two L-shaped handles 404 are away from each other under the elastic force of the W-shaped elastic sheet 405, so that the two ring seats 401 are away from each other and push the limiting rods 402 to move out of the end of the connecting flange 103, at this time, the four limiting rods 402 distributed on the same end are limited outside the flange on the pipeline, thereby realizing the preliminary limiting of the electromagnetic flowmeter 1.

[0042] At this time, the lifting and pulling operation of the electromagnetic flowmeter 1 can be released, and only one hand is needed to apply a certain balance force to the electromagnetic flowmeter 1, then the bolt is connected through the connecting hole on the flange for connection and reinforcement, the whole operation is easy and convenient (it should be noted that after the first bolt is connected through the two flanges, the support of the electromagnetic flowmeter 1 can be released).

[0043] Please refer to Figs. 1-3 , the inner diameter of the ring seat 401 is greater than the outer diameter of the measuring pipe 102 and less than the outer diameter of the sensor body 101, when the ring seat 401 is attached to the end face of the sensor body 101, the end face of the limiting rod 402 is flush with the end face of the connecting flange 103.

[0044] In the embodiment, the movement of the ring seat 401 will not cause friction and scratching to the outer wall of the measuring pipe 102, at the same time, the sensor body 101 provides limiting for the shrinkage movement of the ring seat 401, avoiding the separation of the limiting rod 402 and the through hole 3.

[0045] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A water flow sensor, comprising an electromagnetic flowmeter (1) consisting of a sensor body (101), a measuring tube (102), a connecting flange (103), a transmitter (104), the sensor body (101) is fixed to the outside of the middle of the measuring tube (102), the connecting flange (103) is symmetrically fixed to the two ends of the measuring tube (102), and the transmitter (104) is installed on the top of the sensor body (101), characterized in that, The outer side of the connecting flange (103) is uniformly fixed with four fixed legs (2), and the bottom ends of the two downward fixed legs (2) contact the ground to realize stable placement of the electromagnetic flowmeter (1); One end of the fixed leg (2) is provided with a through hole (3) penetrating to the other end of the fixed leg (2), and the outer side of the measuring pipe (102) is provided with an auxiliary mounting assembly (4) penetrating the through hole (3), which is used for providing auxiliary limiting for installation of the electromagnetic flowmeter (1); The auxiliary mounting assembly (4) comprises a limiting unit and a lifting unit. The limiting unit is used for sleeving and limiting with the flange on the pipeline, so as to realize preliminary limiting of the electromagnetic flowmeter (1) in the middle of the two pipelines. The lifting unit is used for providing a lifting position for the electromagnetic flowmeter (1) and shrinking the limiting unit.

2. A water flow sensor according to claim 1, wherein The limiting unit comprises a ring seat (401) and a limiting rod (402). The ring seat (401) is provided with two ring seats (401), and the two ring seats (401) are respectively located at the two ends of the sensor main body (101) and the middle of the connecting flange (103) and are sleeved on the outer side of the measuring pipe (102). The limiting rod (402) is symmetrically fixed to one end of the two ring seats (401) away from each other and penetrates the through hole (3), and the four limiting rods (402) on the same end protrude from the end of the connecting flange (103) and are sleeved with the flange on the pipeline, which is used for realizing preliminary limiting of the electromagnetic flowmeter (1).

3. A water flow sensor according to claim 2, wherein The lifting unit comprises an n-shaped plate (403), an L-shaped handle (404) and a W-shaped elastic sheet (405). The n-shaped plate (403) is fixed outside the ring seat (401) and extends above the sensor main body (101), the L-shaped handle (404) is symmetrically fixed to the top of the two n-shaped plates (403) and is located above the transmitter (104), and the L-shaped handle (404) is used for providing a handheld position for lifting operation; The W-shaped elastic sheet (405) is distributed at the bottom of the two L-shaped handles (404), and the two ends of the W-shaped elastic sheet (405) are respectively connected and fixed with the two n-shaped plates (403), and the W-shaped elastic sheet (405) is used for providing a mutual repulsion force for the two n-shaped plates (403).

4. A water flow sensor according to claim 3, wherein The inner diameter of the ring seat (401) is greater than the outer diameter of the measuring pipe (102) and less than the outer diameter of the sensor main body (101), and when the ring seat (401) is attached to the end face of the sensor main body (101), the end face of the limiting rod (402) is flush with the end face of the connecting flange (103).

5. A water flow sensor according to claim 2, wherein The through hole (3) contacts the outer side of the connecting flange (103), and the inner diameter of the distribution track of the plurality of limiting rods (402) distributed in a ring shape matches the outer diameter of the connecting flange (103) and the flange on the pipeline.

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