Two-dimensional electromagnetic flow sensor

Abstract

The utility model discloses a two-dimensional electromagnetic flow sensor, and relates to the technical field of flow sensors. The two-dimensional electromagnetic flow sensor comprises a flow channel, a connecting pipeline, a displayer, a flow monitoring probe and connecting flanges, the connecting flanges are fixedly welded to the two ends of the flow channel, the connecting pipeline and the flow channel are integrally formed in a pouring mode and located above the flow channel, and the flow monitoring probe is installed in the connecting pipeline. And the flow monitoring probe is in signal transmission connection with the display through a cable. According to the two-dimensional electromagnetic flow sensor, a locking plate is forced to move upwards again, after a release ball is separated from the locking plate, a pressing rod is pulled outwards, at the moment, the release ball is stressed to be combined with a fixing ball to form a ball shape, a release limiting plate is sunk into a containing groove, and therefore along with continuous outward movement of the pressing rod, the fixing ball is completely separated from a fixing mechanism; therefore, the cover cap and the supporting base are detached, and an operator can conveniently maintain and replace the flow monitoring probe.

Description

Technical Field

[0001] The utility model relates to the technical field of flow sensors, in particular to a two-dimensional electromagnetic flow sensor. Background Art

[0002] Electromagnetic flow sensors and electromagnetic flow converters form electromagnetic flow meters. Electromagnetic flow sensors can be used to form integrated or split intelligent electromagnetic flow meters, which can be selected according to user needs. They can be used to measure corrosive liquids such as acids, alkalis, and salts, or two solids mixed in liquids, such as mud and sewage containing a lot of debris and media with high viscosity. They are widely used in chemical, metallurgical, papermaking, pharmaceutical, textile, brewing, food, environmental protection, chemical fiber, water conservancy and other industries.

[0003] For most of the existing electromagnetic flow sensors, the flow monitoring probe is usually sealed with a plastic cap after it is installed in the flow pipe to prevent it from being damaged by external factors. However, when the plastic cap is connected to the flow pipe, it is usually fixed with bolts. The bolts are exposed to the air for a long time and are prone to corrosion. When the flow monitoring probe needs to be repaired and replaced, the continuous disassembly of the bolts will cause thread slippage, thus affecting the subsequent use of the flow sensor. In view of this, a two-dimensional electromagnetic flow sensor is proposed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a two-dimensional electromagnetic flow sensor that can solve the problem that when the flow monitoring probe needs to be repaired and replaced, the continuous disassembly of the bolts will cause thread slippage, thereby affecting the subsequent use of the flow sensor.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a two-dimensional electromagnetic flow sensor, comprising a flow channel, a connecting pipe, a display, a flow monitoring probe and a connecting flange, wherein the connecting flange is fixedly welded at both ends of the flow channel, the connecting pipe is integrally cast with the flow channel and is located above the flow channel, the flow monitoring probe is installed inside the connecting pipe, the flow monitoring probe is connected to the display signal transmission through a cable, a support base is fixedly welded on one end of the connecting pipe away from the flow channel, a cap is provided on the support base, and a cable for connecting the flow monitoring probe and the display passes through the cap;

[0006] The cap is provided with two disassembly and assembly mechanisms, and the support base is welded with two locking mechanisms that are mutually adapted to the disassembly and assembly mechanisms;

[0007] The disassembly mechanism comprises a pressing rod, which is slidably connected to the cap, and the two ends of the pressing rod are respectively located inside and outside the cap, and a first elastic component is movably sleeved on one end of the pressing rod located outside the cap, and the two ends of the first elastic component are respectively fixedly connected to the surface of the pressing rod and the surface of the cap, and a fixing ball is fixedly connected to one end of the pressing rod located inside the cap, and a release ball is movably sleeved on one end of the pressing rod located inside the cap, and the release ball is slidably connected to the pressing rod through a circular through hole.

[0008] The locking mechanism includes a supporting base plate welded to the supporting base, the upper end of the supporting base plate is slidably connected to two connecting round rods, the upper ends of the connecting round rods are fixedly connected to a locking plate, and the locking plate and the supporting base plate are provided with a fixed through groove in the shape of half a circle on the opposite side.

[0009] Preferably, an annular second elastic component is arranged inside the circular through hole of the release ball, the second elastic component is sleeved on the surface of the pressing rod, and the two ends of the second elastic component are respectively fixedly connected to the surface of the pressing rod and the inner wall of the release ball.

[0010] Preferably, the fixing ball and the releasing ball are both hemispherical, and their cross sections are arranged opposite to each other.

[0011] Preferably, the support base is provided with a connecting sliding hole for sliding the connecting round rod, and a spring is installed inside the connecting sliding hole, and the two ends of the spring are respectively fixedly connected to the connecting round rod and the inner wall of the connecting sliding hole. The setting of the spring enables the connecting round rod and the locking plate to be reset according to the elasticity of the spring after the connecting round rod slides and the external force disappears.

[0012] Preferably, four receiving grooves are provided on the side opposite to the fixing ball and the releasing ball, and four limit release plates which are compatible with the receiving grooves are welded on the side opposite to the fixing ball. The setting of the receiving grooves allows the limit release plates to be immersed in the interior of the receiving grooves when the releasing ball moves, and at this time, the fixing ball and the releasing ball fit together to form a spherical shape.

[0013] Preferably, the accommodating groove and the limit release plate are arranged in a cross-shaped array, and the side of the limit release plate away from the release ball is an inclined surface. The setting of the inclined surface of the limit release plate can make it easier for the locking plate to be subjected to force when the release ball moves through the inclined surface of the limit release plate, thereby reducing the occurrence of jamming.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. For the two-dimensional electromagnetic flow sensor, when it is necessary to remove the cap from the supporting base plate, it is only necessary to exert force on the pressing rod again, so that the pressing rod is forced to drive the release ball to move inward again. At this time, the inclined surface of the limit release plate contacts the inner wall of the fixed through groove. Therefore, with the continuous movement of the pressing rod, the diameter of the limit release plate continues to increase, thereby forcing the locking plate to move upward again. When the release ball is separated from the locking plate, the pressing rod is pulled outward. At this time, the release ball is forced to merge with the fixed ball into a spherical shape, and the release limit plate is immersed in the interior of the accommodating groove. Therefore, with the continuous outward movement of the pressing rod, the fixed ball is completely separated from the fixing mechanism, thereby completing the removal between the cap and the supporting base, thereby facilitating the operator to repair and replace the flow monitoring probe.

[0016] 2. The two-dimensional electromagnetic flow sensor sets the fixing ball and the releasing ball as hemispheres, so that the fixing ball and the releasing ball can contact the locking mechanism more smoothly, reducing the phenomenon of mechanical jamming, thereby ensuring the normal operation of the disassembly and assembly mechanism and the locking mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0018] Figure 1 This is a schematic diagram of the structure of a two-dimensional electromagnetic flow sensor of the utility model;

[0019] Figure 2 This is a schematic diagram of the disassembly of the cap and the support base of the utility model;

[0020] Figure 3 For this utility model Figure 2 The enlarged schematic diagram at A in the middle;

[0021] Figure 4 This is a schematic diagram of the disassembly mechanism and the locking mechanism of the utility model;

[0022] Figure 5 It is a schematic diagram of the fixing ball and the releasing ball of the utility model.

[0023] Figure numerals: 1. flow channel; 2. connecting flange; 3. cover cap; 4. support base; 5. display; 6. connecting pipe; 7. flow monitoring probe; 8. support base plate; 9. locking plate; 10. connecting round rod; 11. fixed through groove; 12. pressing rod; 13. first elastic component; 14. release ball; 15. fixed ball; 16. receiving groove; 17. limit release plate; 18. second elastic component. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0028] See also Figure 1-5 The utility model provides a technical solution: a two-dimensional electromagnetic flow sensor, comprising a flow channel 1, a connecting pipe 6, a display 5, a flow monitoring probe 7 and a connecting flange 2, wherein the connecting flange 2 is fixedly welded at both ends of the flow channel 1, the connecting pipe 6 is integrally cast with the flow channel 1 and is located above the flow channel 1, the flow monitoring probe 7 is installed inside the connecting pipe 6, and the flow monitoring probe 7 is connected to the display 5 for signal transmission via a cable;

[0029] A support base 4 is fixedly welded on one end of the connecting pipe 6 away from the flow channel 1, a cap 3 is provided on the support base 4, and a cable for connecting the flow monitoring probe 7 and the display 5 passes through the cap 3;

[0030] The cap 3 is provided with two disassembly and assembly mechanisms, and the support base 4 is welded with two locking mechanisms that are mutually compatible with the disassembly and assembly mechanisms;

[0031] When the flow sensor needs to be used to detect the flow rate of the liquid, it only needs to be installed between the flow sensor and the external pipeline through the connecting flange 2. At this time, the fluid enters the interior of the flow pipeline 1 through the pipeline, and the fluid is detected by the flow monitoring probe 7.

[0032] Further, the disassembly mechanism includes a pressing rod 12, which is slidably connected to the cover cap 3, and the two ends of the pressing rod 12 are respectively located inside and outside the cover cap 3. A first elastic component 13 is movably sleeved on one end of the pressing rod 12 located outside the cover cap 3, and the two ends of the first elastic component 13 are respectively fixedly connected to the surface of the pressing rod 12 and the surface of the cover cap 3, and a fixing ball 15 is fixedly connected to one end of the pressing rod 12 located inside the cover cap 3. A release ball 14 is movably sleeved on one end of the pressing rod 12 located inside the cover cap 3, and the release ball 14 is slidably connected to the pressing rod 12 through a circular through hole. An annular second elastic component 18 is arranged inside the circular through hole of the release ball 14, and the second elastic component 18 is sleeved on the surface of the pressing rod 12, and the two ends of the second elastic component 18 are respectively fixedly connected to the surface of the pressing rod 12 and the inner wall of the release ball 14;

[0033] The fixing ball 15 and the releasing ball 14 are both hemispherical, and the cross sections are arranged opposite to each other;

[0034] By setting the fixing ball 15 and the releasing ball 14 as hemispherical bodies, the fixing ball 15 and the releasing ball 14 can contact the locking mechanism more smoothly, reducing the phenomenon of mechanical jamming, thereby ensuring the normal operation of the disassembly and assembly mechanism and the locking mechanism.

[0035] Furthermore, the locking mechanism includes a supporting bottom plate 8 welded to the supporting base 4, the upper end of the supporting bottom plate 8 is slidably connected to two connecting round rods 10, the upper end of the connecting round rods 10 is fixedly connected to a locking plate 9, and the locking plate 9 and the supporting bottom plate 8 are provided with a half-circular fixed through groove 11 on the opposite side thereof;

[0036] Among them, a connecting sliding hole for sliding the connecting round rod 10 is opened on the support base 8, and a spring is installed inside the connecting sliding hole, and the two ends of the spring are respectively fixedly connected to the connecting round rod 10 and the inner wall of the connecting sliding hole. The setting of the spring enables the connecting round rod 10 and the locking plate 9 to be reset according to the elasticity of the spring after the connecting round rod 10 slides and the external force disappears;

[0037] When it is necessary to buckle the cap 3 and the supporting base 4, it is only necessary to put the cap 3 on the supporting base 4, and then press the pressing rod 12 relatively. The pressing rod 12 is forced to drive the fixing ball 15 to move toward the fixing groove 11. At this time, the locking plate 9 is in contact with the inclined surface of the fixing ball 15, so the locking plate 9 slides upward following the arc surface of the fixing ball 15, and after the fixing ball 15 leaves the locking plate 9, it is reset by the elasticity of the spring and enters between the fixing ball 15 and the releasing ball 14. At this time, the cross-section of the fixing ball 15 is in contact with the plane of the locking plate 9, thereby completing the fixation of the cap 3.

[0038] Furthermore, four receiving grooves 16 are provided on the side opposite to the fixing ball 15 and the releasing ball 14, and four limit release plates 17 that are mutually adapted to the receiving grooves 16 are welded on the side opposite to the fixing ball 15 and the releasing ball 14;

[0039] The accommodating grooves 16 and the limit release plates 17 are arranged in a cross-shaped array, and the side of the limit release plate 17 away from the release ball 14 is an inclined surface;

[0040] When it is necessary to remove the cap 3 from the supporting base plate 4, it is only necessary to exert force on the pressing rod 12 again. Therefore, the pressing rod 12 is forced to drive the releasing ball 14 to move inward again. At this time, the inclined surface of the limit release plate 17 contacts the inner wall of the fixed through groove 11. Therefore, with the continuous movement of the pressing rod 12, the diameter of the limit release plate 17 continues to increase, thereby forcing the locking plate 9 to move upward again. When the releasing ball 14 is separated from the locking plate 9, the pressing rod 12 is pulled outward. At this time, the releasing ball 14 is forced to merge with the fixed ball 15 to form a spherical shape, and the releasing limit plate 17 is immersed in the interior of the accommodating groove 16. Therefore, with the continuous outward movement of the pressing rod 12, the fixed ball 15 is completely separated from the fixing mechanism, thereby completing the removal between the cap 3 and the supporting base 4, thereby facilitating the operator to repair and replace the flow monitoring probe 7.

[0041] Working principle: when the cap 3 and the supporting base 4 need to be buckled together, the cap 3 only needs to be sleeved on the supporting base 4, and the pressing rod 12 is pressed relatively at this time, and the pressing rod 12 is forced to drive the fixing ball 15 to move toward the fixing through groove 11, and the locking plate 9 is in contact with the inclined surface of the fixing ball 15, so the locking plate 9 slides upward following the arc surface of the fixing ball 15, and after the fixing ball 15 leaves the locking plate 9, it is reset by the elasticity of the spring and enters between the fixing ball 15 and the release ball 14, and the cross section of the fixing ball 15 is in contact with the plane of the locking plate 9, thereby completing the fixing of the cap 3;

[0042] When it is necessary to remove the cap 3 from the supporting base plate 4, it is only necessary to exert force on the pressing rod 12 again. Therefore, the pressing rod 12 is forced to drive the releasing ball 14 to move inward again. At this time, the inclined surface of the limit release plate 17 contacts the inner wall of the fixed through groove 11. Therefore, with the continuous movement of the pressing rod 12, the diameter of the limit release plate 17 continues to increase, thereby forcing the locking plate 9 to move upward again. When the releasing ball 14 is separated from the locking plate 9, the pressing rod 12 is pulled outward. At this time, the releasing ball 14 is forced to merge with the fixed ball 15 to form a spherical shape, and the releasing limit plate 17 is immersed in the interior of the accommodating groove 16. Therefore, with the continuous outward movement of the pressing rod 12, the fixed ball 15 is completely separated from the fixing mechanism, thereby completing the removal between the cap 3 and the supporting base 4, thereby facilitating the operator to repair and replace the flow monitoring probe 7.

[0043] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A two-dimensional electromagnetic flow sensor, comprising a flow channel (1), a connecting pipe (6), a display (5), a flow monitoring probe (7) and a connecting flange (2), wherein the connecting flange (2) is fixedly welded to both ends of the flow channel (1), the connecting pipe (6) and the flow channel (1) are integrally cast and formed and are located above the flow channel (1), the flow monitoring probe (7) is installed inside the connecting pipe (6), and the flow monitoring probe (7) is connected to the display (5) for signal transmission via a cable, characterized in that: A support base (4) is fixedly welded to one end of the connecting pipe (6) away from the flow channel (1), a cover cap (3) is provided on the support base (4), and a cable for connecting the flow monitoring probe (7) and the display (5) passes through the cover cap (3); The cover cap (3) is provided with two disassembly and assembly mechanisms, and the support base (4) is welded with two locking mechanisms that are mutually compatible with the disassembly and assembly mechanisms; The disassembly mechanism comprises a pressing rod (12), the pressing rod (12) is slidably connected to the cover cap (3), the two ends of the pressing rod (12) are respectively located inside and outside the cover cap (3), a first elastic component (13) is movably sleeved on one end of the pressing rod (12) located outside the cover cap (3), the two ends of the first elastic component (13) are respectively fixedly connected to the surface of the pressing rod (12) and the surface of the cover cap (3), a fixing ball (15) is fixedly connected to one end of the pressing rod (12) located inside the cover cap (3), a release ball (14) is movably sleeved on one end of the pressing rod (12) located inside the cover cap (3), and the release ball (14) is slidably connected to the pressing rod (12) through a circular through hole; The locking mechanism comprises a supporting base plate (8) welded to a supporting base (4); the upper end of the supporting base plate (8) is slidably connected to two connecting round rods (10); the upper ends of the connecting round rods (10) are fixedly connected to a locking plate (9); and the locking plate (9) and the supporting base plate (8) are both provided with a half-circular fixed through groove (11) on the opposite side thereof.

2. A two-dimensional electromagnetic flow sensor according to claim 1, characterized in that: A second elastic component (18) in an annular shape is arranged inside the circular through hole formed by the release ball (14). The second elastic component (18) is sleeved on the surface of the pressing rod (12). The two ends of the second elastic component (18) are respectively fixedly connected to the surface of the pressing rod (12) and the inner wall of the release ball (14).

3. A two-dimensional electromagnetic flow sensor according to claim 2, characterized in that: The fixing ball (15) and the releasing ball (14) are both hemispherical, and their cross-sections are arranged opposite to each other.

4. A two-dimensional electromagnetic flow sensor according to claim 3, characterized in that: The supporting bottom plate (8) is provided with a connecting sliding hole for sliding the connecting round rod (10), and a spring is installed inside the connecting sliding hole, and the two ends of the spring are respectively fixedly connected to the connecting round rod (10) and the inner wall of the connecting sliding hole. The setting of the spring enables the connecting round rod (10) and the locking plate (9) to be reset according to the elasticity of the spring after the connecting round rod (10) slides and the external force disappears.

5. A two-dimensional electromagnetic flow sensor according to claim 4, characterized in that: Four receiving grooves (16) are provided on the side opposite to the fixing ball (15) and the releasing ball (14); four limit release plates (17) adapted to the receiving grooves (16) are welded on the side opposite to the fixing ball (15) and the releasing ball (14); the arrangement of the receiving grooves (16) enables the limit release plates (17) to be immersed in the receiving grooves (16) when the releasing ball (14) moves, and at this time the fixing ball (15) and the releasing ball (14) fit together to form a spherical shape.

6. A two-dimensional electromagnetic flow sensor according to claim 5, characterized in that: The accommodating groove (16) and the limit release plate (17) are arranged in a cross-shaped array, and the side of the limit release plate (17) away from the release ball (14) is an inclined surface. The arrangement of the inclined surface of the limit release plate (17) can make it easier for the locking plate (9) to be stressed when the release ball (14) moves through the inclined surface of the limit release plate (17), thereby reducing the occurrence of a jamming phenomenon.

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