A double flange liquid level transmitter

Abstract

The present invention relates to the technical field of liquid level transmitters, and specifically to a double-flange liquid level transmitter, comprising a transmitter, a tube body is installed at the lower position of the outer surface of the transmitter, end plates are provided at both ends of the tube body, cables electrically connected to the transmitter are installed on the back sides of the two end plates, a pressure sensor is installed on the end of the cable away from the transmitter, hanging plates are provided on the back sides of the two end plates, storage boxes are installed at the lower ends of the two hanging plates, and detachable side covers are installed on the back sides of the two storage boxes, a plurality of support plates are installed equidistantly from top to bottom in the storage box, and ferrules for limiting the position of cables are evenly installed on the upper surface of the support plates, and long round openings for the cables to pass through are opened at both ends of the support plates. The present invention has the following beneficial effects: the connecting parts of the cable and the flange and the connecting parts of the cable and the transmitter will not be damaged by pulling, thereby playing a role in protecting the cables.

Description

Technical Field

[0001] The invention relates to a double-flange type liquid level transmitter, belonging to the technical field of liquid level transmitters. Background Art

[0002] The double flange level transmitter is a precision instrument for measuring the height of liquids, especially for corrosive, high temperature, high pressure or viscous media. One of the two flanges is installed on the top of the container to measure the air pressure or atmospheric pressure above the container, and the other flange is installed on the bottom of the container to measure the liquid pressure in the container. The pressure sensor measures the pressure difference between the two flanges and converts the pressure difference into an electrical signal. The signal amplifier amplifies the electrical signal, and the A / D converter converts it into a digital signal. The microprocessor processes the digital signal and calculates the liquid level. There are two long cables in the double flange level transmitter. The cables connect the pressure sensor and the transmitter on the flange. Because the distance between the two flanges needs to meet the needs of containers of different heights, the cables have a long length. The long cables are generally wound up and tied with cable ties. At this time, the weight of the wound cable and flange acts on the connection between the cable and the transmitter during the transfer process, which will cause damage to the connection between the cable and the transmitter. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention aims to provide a double-flange liquid level transmitter to solve the problems raised in the above background technology.

[0004] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a double-flange liquid level transmitter, including a transmitter, a tube body is installed at the lower position of the outer surface of the transmitter, end plates are provided at both ends of the tube body, the two end plates are connected to the tube body through fasteners formed by multiple sets of connecting screws and first nuts, cables electrically connected to the transmitter are installed on the backs of the two end plates, a pressure sensor is installed at one end of the cable away from the transmitter, a flange connected and fixed to the pressure sensor is sleeved on the pressure sensor, and hanging plates are provided on the backs of the two end plates. The connecting screws pass through the two hanging plates, and storage boxes are installed at the lower ends of the two hanging plates. The upper surface of the storage box is open, and the back sides of the two storage boxes are open. Removable side covers are installed on the back sides of the two storage boxes. Multiple support plates are installed equidistantly from top to bottom in the storage box, and the upper surfaces of the support plates are evenly installed with clamping sleeves for limiting the position of cables. Both ends of the support plates are provided with long round openings for the cables to pass through, and one end of the long round opening is processed with a notch. The lower positions of the two ends of the support plates are provided with support strips for supporting the support plates, and the support strips are connected and fixed to the storage box.

[0005] Specifically, the four corners of one side of the end plate facing the tube body are provided with first through holes, and a connecting screw is inserted in the channel formed by the first through holes aligned on the two end plates, and one end of the connecting screw is threadedly connected to a first nut, and two second through holes are provided on one side of the hanging plate, and the connecting screw passes through the second through holes. One hanging plate is arranged between the head of the connecting screw and one end plate, and the other hanging plate is arranged between the first nut and the other end plate. A V-shaped groove is provided at the upper position of one side surface of the hanging plate, and diamond-shaped protrusions are installed on the back sides of the two end plates, and one end of the diamond-shaped protrusion is inserted in the V-shaped groove.

[0006] Specifically, a plurality of pressure plates for holding the pallet are installed equidistantly from top to bottom on one side of the side cover facing the storage box, and the plurality of pressure plates and the plurality of pallets are arranged alternately. One pressure plate is arranged on the upper side of the pallet matched with it, and a pressure strip for holding the cable is provided on the upper side of the topmost pallet, and one end of the pressure strip is connected and fixed to the side cover.

[0007] Specifically, two side surfaces of the two end plates connected to the cables are connected and fixed with connection seats, the connection seats and the end plates are an integrally formed structure, a plurality of threaded holes are provided on a side of the connection seats away from the end plates, and a sealing gasket is installed between the end plates and the tube body.

[0008] Specifically, two connecting strips are provided on one side of the two side covers facing the storage box, and the connecting strips are fixedly connected to the storage box. Two first circular holes are opened on one side of the connecting strip, and two second circular holes aligned with the first circular holes are opened on the area of ​​the side cover covered by the connecting strip. Two screws are provided on both sides of the storage box adjacent to the side cover, and the ends of the screws pass through the first circular hole on the connecting strip and the second circular hole on the side cover. Both ends of the screws are threadedly connected with two second nuts, and the two second nuts on one end of the screw are arranged on both sides of the channel formed by the first circular hole and the second circular hole.

[0009] Specifically, two vertical plates are installed on the opposite surfaces of the two storage boxes, and two third circular holes are opened on the side of the vertical plates facing the connecting strip, and the screw rod passes through the third circular holes.

[0010] Specifically, a movable plate is provided between the vertical plate and the connecting strip on the storage box, two fourth circular holes are provided on one side of the movable plate, the screw rod passes through the fourth circular hole, third nuts are provided on both sides of the fourth circular hole along the length direction of the screw rod, the third nut is threadedly connected to the screw rod, and a positioning plate is installed on the side of the movable plate away from the storage box, the positioning plate and the movable plate are arranged perpendicular to each other, and two fixing holes are provided on one side of the positioning plate.

[0011] Specifically, one side of the flange is recessed to form a circular groove, the pressure sensor is installed in the circular groove, a wire threading hole communicating with the circular groove is opened in the middle of one side of the flange facing away from the circular groove, one end of the cable passes through the wire threading hole, a soft connecting sleeve is provided on the side of the wire threading hole facing away from the circular groove, the soft connecting sleeve is mounted on the cable and one end of the soft connecting sleeve is fixedly connected to the flange.

[0012] Beneficial effects of the present invention: 1. After the connecting screw passes through the two hanging plates and the two end plates, the first nut is screwed on. At this time, the connecting screw and the first nut cooperate with each other to limit the relative position of the end plate and the pipe body. At the same time, the relative position of the structure formed by the hanging plate and the storage box and the end plate remains unchanged, so as to achieve the purpose of limiting the relative position of the end plate and the pipe body and limiting the position of the storage box by using the fastener formed by the connecting screw and the first nut, and reducing the use of fasteners.

[0013] 2. Insert the pallets gradually from bottom to top in the storage box. After inserting a pallet at the bottom of the storage box, insert the cables into multiple ferrules in an S shape, and then pass one end of the cable through the notch through the long round mouth, so that the cable is transferred to the upper side of another pallet for placement. And so on, so that the redundant length of cable is stored in the storage box, and the flange is connected to the connecting seat on the end plate with bolts to limit the position of the flange and the transmitter, so that the connecting parts of the cable and the flange and the cable and the transmitter will not be pulled and damaged, thereby protecting the cable.

[0014] 3. Make the two ends of the screw rod pass through the connecting strips and side covers on the two storage boxes respectively, and then use the two second nuts at the ends of the screw rod to limit the relative position of the screw rod and the side covers, so that the relative positions of the two side covers and the two storage boxes are limited by the cooperation of the screw rod and the second nut, and under the support of the screw rod, the stability of the relative position of the two storage boxes is improved, that is, the stability of the overall structure is improved, and the screw rod passes through the vertical plate on the storage box, so that the installation of the screw rod and the storage box is more stable.

[0015] 4. Make the screw rod pass through the movable plate, and then use the third nut to limit the relative position of the movable plate and the screw rod, so as to adjust the relative position of the movable plate and the screw rod as needed, so as to move the fixing hole on the positioning plate to the required position according to the needs of the installation site, so as to achieve convenient adjustment of the installation position of the transmitter.

[0016] 5. After the side cover is installed, the multiple pressure plates on the side cover are pressed on the multiple support plates respectively, and the position of the support plates in the storage box is restricted under the action of the support strips. The two pressure strips on the side cover press the cables on the uppermost support plate to prevent the cables from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 It is a structural schematic diagram of a double flange type liquid level transmitter of the present invention; Figure 2 This is an enlarged view of point A in a double-flange type liquid level transmitter of the present invention; Figure 3 It is a schematic diagram of the assembly of the connecting screws, the first nut, the end plate, the tube body and the transmitter in a double flange type liquid level transmitter of the present invention; Figure 4 It is a schematic diagram of the assembly of a support plate, a ferrule and a storage box in a double-flange liquid level transmitter of the present invention; Figure 5 It is a schematic diagram of the assembly of a hanging plate, a connecting bar, a supporting bar and a storage box in a double-flange type liquid level transmitter of the present invention; Figure 6 It is a schematic diagram of the assembly of a ferrule and a support plate in a double-flange liquid level transmitter of the present invention; Figure 7 It is a schematic diagram of the assembly of a pressure plate, a pressure strip and a side cover in a double-flange liquid level transmitter of the present invention; In the figure: 1, transmitter, 2, tube body, 3, cable, 4, flexible connection sleeve, 5, flange, 6, ferrule, 7, pressure strip, 8, side cover, 9, storage box, 10, screw, 11, positioning plate, 12, vertical plate, 13, movable plate, 14, pressure sensor, 15, support bar, 16, end plate, 17, connecting bar, 18, second nut, 19, fixing hole, 20, third nut, 21, connecting screw, 22, connecting seat, 23, threaded hole, 24, first through hole, 25, diamond-shaped protrusion, 26, first nut, 27, support plate, 28, hanging plate, 29, V-shaped groove, 30, second through hole, 31, third circular hole, 32, long round mouth, 33, second circular hole, 34, pressure plate, 35, first circular hole. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0019] See also Figure 1 and Figure 3The present invention provides a technical solution: a double-flange liquid level transmitter, comprising a transmitter 1, a tube body 2 is installed at the lower position of the outer surface of the transmitter 1, and end plates 16 are provided at both ends of the tube body 2. The two end plates 16 are connected to the tube body 2 through fasteners formed by multiple sets of connecting screws 21 and first nuts 26, and cables 3 electrically connected to the transmitter 1 are installed on the backs of the two end plates 16. A pressure sensor 14 is installed at one end of the cable 3 away from the transmitter 1. A flange 5 connected and fixed to the pressure sensor 14 is sleeved on the pressure sensor 14, wherein one side of the flange 5 is recessed to form a circular groove, and the pressure sensor 14 is installed in the circular groove. A threading hole communicating with the circular groove is opened in the middle position of one side of the flange 5 away from the circular groove, and one end of the cable 3 passes through the threading hole, and a soft connection sleeve 4 is provided on the side of the threading hole away from the circular groove, and the soft connection sleeve 4 is sleeved on the cable 3 and one end of the soft connection sleeve 4 is connected and fixed to the flange 5, and the soft connection sleeve 4 protects the end of the cable 3 close to the flange 5.

[0020] See also Figure 1 , Figure 3-Figure 5 , the two end plates 16 are provided with hanging plates 30 on the back side, the connecting screws 21 pass through the two hanging plates 30, and the storage boxes 9 are installed at the lower ends of the two hanging plates 30, wherein the four corners of the end plate 16 facing the tube body 2 are provided with first through holes 24, and the connecting screws 21 are inserted into the channels formed by the first through holes 24 aligned on the two end plates 16, and the first nut 26 is threadedly connected to one end of the connecting screw 21. Two hanging plates 30 are provided on one side of the hanging plate 30, and the connecting screws 21 pass through the hanging plates 30. One hanging plate 30 is arranged between the head of the connecting screw 21 and one end plate 16, and the other hanging plate 30 is arranged between the first nut 26 and the other end plate 16. The upper position of one side surface of the hanging plate 30 is provided There is a V-shaped groove 29, and diamond-shaped protrusions 25 are installed on the back sides of the two end plates 16, so that one end of the diamond-shaped protrusion 25 is inserted into the V-shaped groove 29, so that the hanging plate 30 and the end plate 16 are quickly positioned, and the connecting screw 21 passes through the two hanging plates 30 and the two end plates 16 and then the first nut 26 is screwed on. At this time, the connecting screw 21 and the first nut 26 cooperate with each other to limit the relative position of the end plate 16 and the tube body 2, and at the same time, the relative position of the structure formed by the hanging plate 30 and the storage box 9 and the end plate 16 remains unchanged, so as to achieve the purpose of limiting the relative position of the end plate 16 and the tube body 2 and limiting the position of the storage box 9 by using the fastener formed by the connecting screw 21 and the first nut 26, and reducing the use of fasteners.

[0021] See also Figure 1-Figure 7The upper surface of the storage box 9 is open, and the backs of the two storage boxes 9 are open. The backs of the two storage boxes 9 are both installed with removable side covers 8, wherein the two side covers 8 are provided with two connecting strips 17 on one side facing the storage box 9, and the connecting strip 17 is fixedly connected to the storage box 9, and two first circular holes 35 are provided on one side of the connecting strip 17, and two second circular holes 33 aligned with the first circular holes 35 are provided in the area of ​​the side cover 8 covered by the connecting strip 17, and two screw rods 10 are provided on both sides of the storage box 9 adjacent to the side cover 8, and the ends of the screw rods 10 pass through the first circular hole 35 on the connecting strip 17 and the second circular hole 33 on the side cover 8, and the two ends of the screw rod 10 are threadedly connected with two second nuts 18, and the two second nuts 18 on one end of the screw rod 10 are arranged in the first circular hole 35 and the second circular hole 33. On both sides of the channel formed by the two circular holes 33, two vertical plates 12 are installed on the opposite surfaces of the two storage boxes 9. Two third circular holes 31 are formed on the side of the vertical plates 12 facing the connecting strip 17. The screw rod 10 passes through the third circular hole 31, so that the two ends of the screw rod 10 pass through the connecting strip 17 and the side cover 8 on the two storage boxes 9 respectively, and then the two second nuts 18 at the end of the screw rod 10 are used to limit the relative position of the screw rod 10 and the side cover 8, so that the relative position of the two side covers 8 and the two storage boxes 9 are limited by the cooperation of the screw rod 10 and the second nut 18, and under the support of the screw rod 10, the stability of the relative position of the two storage boxes 9 is improved, that is, the stability of the overall structure is improved, so that the screw rod 10 passes through the vertical plates 12 on the storage box 9, and the installation of the screw 10 and the storage box 9 is more stable.

[0022] See also Figure 1-Figure 7 A plurality of support plates 27 are installed equidistantly from top to bottom in the storage box 9, and a sleeve 6 for limiting the position of the cable 3 is evenly installed on the upper surface of the support plate 27. An oblong opening 32 for the cable 3 to pass through is opened at both ends of the support plate 27, and a notch is processed at one end of the oblong opening 32. A support bar 15 for supporting the support plate 27 is provided at the lower position of both ends of the support plate 27. The support bar 15 is connected and fixed to the storage box 9. A connecting seat 22 is connected and fixed to the two sides where the two end plates 16 are connected to the cable 3. The connecting seat 22 and the end plate 16 are an integrally formed structure. A plurality of threaded holes 23 are opened on the side of the connecting seat 22 away from the end plate 16, and a sealing is installed between the end plate 16 and the tube body 2. The gasket is used to gradually insert the support plates 27 from bottom to top in the storage box 9. After a support plate 27 is inserted at the bottom of the storage box 9, the cable 3 is inserted into the multiple ferrules 6 in an S shape, and then one end of the cable 3 is passed through the notch through the oblong opening 32, so that the cable 3 is transferred to the upper side of another support plate 27 for placement. Similarly, the redundant length of cable 3 is stored in the storage box 9, and the flange 5 is connected to the connecting seat 22 on the end plate 16 by bolts, so that the position of the flange 5 and the transmitter 1 is restricted, and then the connecting parts of the cable 3 and the flange 5 and the connecting parts of the cable 3 and the transmitter 1 will not be pulled and damaged, thereby protecting the cable 3.

[0023] See also Figure 1 , Figure 4-Figure 7 A plurality of pressing plates 34 for pressing the pallets 27 are equidistantly installed from top to bottom on one side of the side cover 8 facing the storage box 9. The plurality of pressing plates 34 and the plurality of pallets 27 are alternately arranged. One pressing plate 34 is arranged on the upper side of the pallet 27 matched therewith. A pressure strip 7 for pressing the cable 3 is provided on the upper side of the uppermost pallet 27. One end of the pressure strip 7 is connected and fixed to the side cover 8. After the side cover 8 is installed, the plurality of pressing plates 34 on the side cover 8 are respectively pressed on the plurality of pallets 27, and the position of the pallet 27 in the storage box 9 is restricted under the action of the support strip 15. The two pressure strips 7 on the side cover 8 press the cables 3 on the uppermost pallet 27 to prevent the cables 3 from loosening.

[0024] See also Figure 1 and Figure 2 A movable plate 13 is provided between the vertical plate 12 and the connecting strip 17 on a storage box 9, and two fourth circular holes are provided on one side of the movable plate 13, and the screw rod 10 passes through the fourth circular holes. Third nuts 20 are provided on both sides of the fourth circular hole along the length direction of the screw rod 10, and the third nut 20 is threadedly connected to the screw rod 10. A positioning plate 11 is installed on the side of the movable plate 13 away from the storage box 9. The positioning plate 11 and the movable plate 13 are arranged perpendicular to each other. Two fixing holes 19 are provided on one side of the positioning plate 11, so that the screw rod 10 passes through the movable plate 13, and then the third nut 20 is used to limit the relative position of the movable plate 13 and the screw rod 10, so as to facilitate the adjustment of the relative position of the movable plate 13 and the screw rod 10 as needed, so as to realize the movement of the fixing holes 19 on the positioning plate 11 to the required position according to the needs of the installation site, that is, to achieve convenient adjustment of the installation position of the transmitter 1.

[0025] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A double flange type liquid level transmitter, comprising a transmitter (1), characterized in that: A tube body (2) is installed at a lower position on the outer surface of the transmitter (1), and end plates (16) are provided at both ends of the tube body (2). The two end plates (16) are connected to the tube body (2) via fasteners formed by multiple sets of connecting screws (21) and first nuts (26). Cables (3) electrically connected to the transmitter (1) are installed on the back sides of the two end plates (16). A pressure sensor (14) is installed at one end of the cable (3) away from the transmitter (1). A flange (5) connected and fixed to the pressure sensor (14) is sleeved on the pressure sensor (14). Hanging plates (30) are provided on the back sides of the two end plates (16). The connecting screws (21) penetrate the two hanging plates (30). The two hanging plates (30) A storage box (9) is installed at the lower end of each of the two storage boxes (30), the upper surface of the storage box (9) is open, the back surfaces of the two storage boxes (9) are open, and the back surfaces of the two storage boxes (9) are both installed with a detachable side cover (8). A plurality of support plates (27) are installed equidistantly from top to bottom in the storage box (9), and a clamping sleeve (6) for limiting the position of the cable (3) is evenly installed on the upper surface of the support plate (27). An elongated round opening (32) for the cable (3) to pass through is opened at both ends of the support plate (27), and a notch is processed at one end of the elongated round opening (32). Support bars (15) for supporting the support plate (27) are provided at the lower positions of both ends of the support plate (27), and the support bars (15) are connected and fixed to the storage box (9).

2. A double flange type liquid level transmitter according to claim 1, characterized in that: The end plate (16) is provided with first through holes (24) at four corners on one side facing the tube body (2). A connecting screw (21) is inserted into a channel formed by the first through holes (24) aligned on the two end plates (16). One end of the connecting screw (21) is threadedly connected to a first nut (26). One side of the hanging plate (30) is provided with two hanging plates (30). The connecting screw (21) passes through the hanging plates (30). One hanging plate (30) is arranged between the head of the connecting screw (21) and one end plate (16), and the other hanging plate (30) is arranged between the first nut (26) and the other end plate (16). A V-shaped groove (29) is provided at the upper position of one side surface of the hanging plate (30). Diamond-shaped protrusions (25) are installed on the opposite sides of the two end plates (16). One end of the diamond-shaped protrusion (25) is inserted into the V-shaped groove (29).

3. A double flange liquid level transmitter according to claim 1, characterized in that: A plurality of pressing plates (34) for pressing the support plate (27) are equidistantly mounted on a side of the side cover (8) facing the storage box (9) from top to bottom. The plurality of pressing plates (34) and the plurality of support plates (27) are arranged alternately. One pressing plate (34) is arranged on the upper side of the support plate (27) that matches it. A pressing strip (7) for pressing the cable (3) is provided on the upper side of the uppermost support plate (27). One end of the pressing strip (7) is connected and fixed to the side cover (8).

4. A double flange type liquid level transmitter according to claim 1, characterized in that: A connecting seat (22) is fixedly connected to the two side surfaces of the two end plates (16) connected to the cable (3); the connecting seat (22) and the end plates (16) are an integrally formed structure; a plurality of threaded holes (23) are provided on a side of the connecting seat (22) facing away from the end plates (16); and a sealing gasket is installed between the end plates (16) and the tube body (2).

5. The double flange type liquid level transmitter according to claim 1, characterized in that: Two connecting bars (17) are provided on one side of the two side covers (8) facing the storage box (9), the connecting bars (17) being connected and fixed to the storage box (9), two first circular holes (35) being provided on one side of the connecting bars (17), two second circular holes (33) being provided in alignment with the first circular holes (35) being provided in the area of ​​the side cover (8) covered by the connecting bars (17), two screw rods (10) are provided on both sides of the storage box (9) adjacent to the side covers (8), the ends of the screw rods (10) passing through the first circular holes (35) on the connecting bars (17) and the second circular holes (33) on the side covers (8), the two ends of the screw rods (10) being threadedly connected to two second nuts (18), the two second nuts (18) on one end of the screw rod (10) being arranged on both sides of a channel formed by the first circular holes (35) and the second circular holes (33).

6. A double flange type liquid level transmitter according to claim 5, characterized in that: Two vertical plates (12) are installed on opposite sides of the two storage boxes (9), and two third circular holes (31) are formed on a side of the vertical plates (12) facing the connecting strip (17), and the screw rods (10) pass through the third circular holes (31).

7. A double flange type liquid level transmitter according to claim 6, characterized in that: A movable plate (13) is provided between the vertical plate (12) and the connecting strip (17) on the storage box (9), and two fourth circular holes are provided on one side of the movable plate (13), and the screw rod (10) passes through the fourth circular hole. Third nuts (20) are provided on both sides of the fourth circular hole along the length direction of the screw rod (10), and the third nuts (20) are threadedly connected to the screw rod (10). A positioning plate (11) is installed on a side of the movable plate (13) away from the storage box (9), and the positioning plate (11) and the movable plate (13) are arranged perpendicular to each other, and two fixing holes (19) are provided on one side of the positioning plate (11).

8. The double flange type liquid level transmitter according to claim 1, characterized in that: One side of the flange (5) is recessed to form a circular groove, the pressure sensor (14) is installed in the circular groove, a threading hole communicating with the circular groove is provided in the middle of one side of the flange (5) facing away from the circular groove, one end of the cable (3) passes through the threading hole, a flexible connection sleeve (4) is provided on the side of the threading hole facing away from the circular groove, the flexible connection sleeve (4) is sleeved on the cable (3) and one end of the flexible connection sleeve (4) is connected and fixed to the flange (5).

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