Split capacitance liquid level meter connecting structure

Abstract

The utility model discloses a split capacitance liquidometer connecting structure, which comprises a mounting column, a fixing mechanism and a reinforcing mechanism, the middle part of the upper end of the mounting column is provided with an upper socket, the middle part of the lower end of the mounting column is provided with a lower socket, and the lower end of the outer surface of the mounting column is provided with uniformly distributed chutes; the fixing mechanism comprises rack plates, fixing claws and an external thread ring, the rack plates are slidably connected to the interior of the sliding groove, the fixing claws are rotatably connected to the lower end of the interior of the sliding groove, the external thread ring is slidably connected to the lower end of the outer surface of the mounting column, and the reinforcing mechanism is arranged at the upper end of the outer surface of the mounting column. The fixing and reinforcing mechanisms are arranged, the upper end and the lower end of the wall body can be synchronously fixed while installation is not affected, the connection stability is improved, connection looseness caused by equipment vibration is effectively prevented, rapid installation and disassembly can be achieved, and follow-up maintenance and probe replacement are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of split capacitance liquid level gauges, in particular to a split capacitance liquid level gauge connection structure. Background Art

[0002] The split capacitance level meter is a measuring instrument that uses the change of capacitance to measure the level of the medium in the container. In the container, the container wall made of electrodes and conductive materials constitutes a capacitor. For a given electrode, when the dielectric constant of the measured medium remains unchanged, a fixed frequency measurement voltage is applied to the electrode. The current flowing through the capacitor depends on the height of the medium between the capacitor electrodes and is proportional to it. The split capacitance level meter generally has two electrodes inside, one is called the probe electrode and the other is called the reference electrode. These two electrodes can be installed inside or outside the container, depending on the actual application. When the distance between the two electrodes changes, the capacitance between them will also change. The capacitance is inversely proportional to the distance between the two electrodes, that is, the closer the distance, the greater the capacitance, and the farther the distance, the smaller the capacitance. When the capacitance level meter is used to measure the liquid level, the presence of the liquid will change the distance between the two electrodes. When the liquid level rises, the liquid will be closer to the electrode, the capacitance increases, and when the liquid level drops, the capacitance decreases, and the system will pass The capacitance measurement circuit is used to monitor the capacitance change between the electrodes. This can be achieved by applying an electrical signal of a certain frequency to the probe electrode and then measuring the signal on the reference electrode. The capacitance change caused by the liquid level change will be converted into an electrical signal that can be understood by the measurement system. The measurement system will convert the measured capacitance value into a liquid level value, which can be displayed and used through a display screen, a control system or other means. The existing split capacitance level meter is usually installed and connected through external threads and flanges. The probe is connected to the display through an external thread and a flange on the outer surface to connect with the container. When the traditional split capacitance level meter connection structure is connected through an external thread, the connection performance is low and the connection is easily loosened due to equipment vibration. It is not suitable for liquid level measurement of special equipment. When connected through a flange, the connection strength is sufficient, but a large number of bolts are required for installation and disassembly, which is time-consuming and labor-intensive, and is not convenient for subsequent maintenance and replacement of the probe. For this reason, we propose a split capacitance level meter connection structure. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a split capacitance level gauge connection structure, which is equipped with a fixing and reinforcement mechanism, and can simultaneously fix the upper and lower ends of the wall body without affecting the installation, thereby improving the stability of the connection, effectively preventing the loose connection due to equipment vibration, and can also be quickly installed and disassembled, which is convenient for subsequent maintenance and replacement of the probe, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a split capacitance level gauge connection structure, including a mounting column, a fixing mechanism and a reinforcement mechanism;

[0005] Installation column: an upper socket is provided in the middle of the upper end, a lower socket is provided in the middle of the lower end of the installation column, and evenly distributed sliding grooves are provided on the outer surface of the installation column and the lower end;

[0006] Fixing mechanism: It includes a rack plate, a fixing claw and an external threaded ring. The rack plates are all slidably connected to the inside of the slide slot, the fixing claws are all rotatably connected to the lower end of the inside of the slide slot, the rack plate is meshed with the gear at the end of the fixing claw, the external threaded ring is slidably connected to the lower end of the outer surface of the mounting column, and the upper ends of the outer ends of the six rack plates are all fixedly connected to the inner wall of the threaded outer ring, providing a basis for fixing the top wall of the equipment;

[0007] Reinforcement mechanism: It is arranged at the upper end of the outer surface of the mounting column and is equipped with a fixing and reinforcement mechanism. It can simultaneously fix the upper and lower ends of the wall without affecting the installation, thereby improving the stability of the connection and effectively preventing the loose connection caused by equipment vibration. It can also be quickly installed and disassembled, facilitating subsequent maintenance and replacement of the probe.

[0008] Furthermore, the fixing mechanism also includes a sliding column and a spring 1. The sliding columns are arranged at the inner lower end of the rack plate, and the inner lower end of the slide groove is provided with a mounting block. The outer surface of the sliding column is slidably connected to the inner middle of the mounting block. A spring 1 is provided between the upper end of the mounting block and the inner wall of the rack plate. The spring 1 is sleeved on the outer surface of the sliding column to provide guiding and rebound effects for the rack plate.

[0009] Furthermore, the fixing mechanism also includes a limiting ring and a friction plate. The limiting ring is threadedly connected to the middle part of the outer surface of the mounting column. The upper end of the outer surface of the limiting ring is provided with evenly distributed threads. The friction plate is respectively arranged at the upper and lower ends of the limiting ring. The lower end of the friction plate at the lower end is fitted with the upper end of the external threaded ring. The top wall of the device can be quickly fixed by moving the position of the limiting ring.

[0010] Furthermore, the fixing mechanism also includes a stabilizing outer ring, which is threadedly connected to the outer surface of the outer threaded ring and can quickly fix the surface of the device.

[0011] Furthermore, the reinforcement mechanism also includes a guide groove, a reinforcement ring and a connecting ring sleeve. The guide groove is evenly opened on the upper end of the outer surface of the mounting column. The reinforcement ring is slidably connected to the upper end of the outer surface of the mounting column. The lower end of the reinforcement ring is fitted with the upper end of the friction plate at the upper end. The connecting ring sleeve is threadedly connected to the outer surface of the reinforcement ring, which can quickly connect the reinforcement ring and the limit ring to prevent the limit ring from loosening due to vibration of the equipment.

[0012] Furthermore, the guide groove is a 7-type step groove, and the interior of the reinforcement ring is provided with evenly distributed limiting protrusions, and the outer surface of the limiting protrusion is installed in cooperation with the inner wall of the guide groove, providing a basis for fixing and releasing the reinforcement ring.

[0013] Furthermore, the reinforcement mechanism also includes an extrusion ring and a second spring. The extrusion ring is slidably connected to the upper end of the outer surface of the mounting column. The lower end of the extrusion ring is in contact with the upper end of the reinforcement ring. A second spring is provided between the upper end of the extrusion ring and the top wall of the mounting column. The second spring is sleeved on the upper end of the outer surface of the mounting column to facilitate fixing and releasing the reinforcement ring.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] 1. Rotate the limit ring forward, the limit ring moves downward, the external thread ring is pressed downward, and the rack plate moves downward synchronously. Once the spring is compressed, the fixed claw will deflect outward as the rack plate moves downward until the fixed claw deflects outward ninety degrees. At this time, the fixed claw is parallel to the top wall of the equipment. Then move the mounting column upward to make the fixed claw fit the top wall of the equipment. Then rotate the stabilizing outer ring to make the lower end of the stabilizing outer ring fit the surface of the equipment. At this time, the top wall and surface of the equipment are fixed. Then start reinforcement. The initial state of the reinforcement ring is at the upper end of the guide groove. Rotate the reinforcement ring to make the limit protrusion leave At the step at the upper end of the guide groove, the reinforcement ring is not restricted, and the second spring is not expanded without force, driving the extrusion ring to move downward, continuously pressing the reinforcement ring, so that the lower end of the reinforcement ring is close to the surface of the friction plate, and then the connecting ring sleeve is rotated forward, and the connecting ring sleeve moves downward. As the connecting ring sleeve moves downward, the connecting ring sleeve connects the limit ring and the reinforcement ring, making the limit ring and the reinforcement ring more tightly connected. At this time, the fixing effect is best, and then the external display is plugged into the upper socket to complete the installation and connection work, which improves the stability of the connection of the split capacitor level gauge and effectively prevents loose connection due to equipment vibration.

[0016] 2. Reverse the connecting ring sleeve to return the connecting ring sleeve to its original position, the limit ring and the reinforcement ring lose their fixing effect, push up the reinforcement ring, drive the extrusion ring to move up, and the second spring is compressed under force. When the reinforcement ring moves to the upper end of the guide groove, rotate the reinforcement ring to make the limit protrusion return to the step of the guide groove, and then release the reinforcement ring. The second spring and the extrusion ring continue to press the reinforcement ring to keep the reinforcement ring stationary. Then reverse the limit ring and move the limit ring up. At this time, the rack plate is not subject to force, and the first spring rebounds without force, driving the rack plate to move up, and the fixed claw also deflects downward by ninety degrees. At this time, the fixed claw is not restricted by the top wall of the equipment. Pull up the mounting column to bring out the probe, and then you can inspect and replace the probe. It can also be quickly installed and disassembled, which is convenient for subsequent inspection and replacement of the split capacitance level meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the fixing mechanism and the reinforcement mechanism of the utility model;

[0019] Figure 3 This is a schematic diagram of the installation column structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the local structure of the fixing mechanism of the utility model;

[0021] Figure 5 It is a schematic diagram of the structure of the reinforcement ring and the connecting ring sleeve of the utility model.

[0022] In the figure: 1 mounting column, 2 upper socket, 3 lower socket, 4 slide groove, 5 mounting block, 6 fixing mechanism, 61 rack plate, 62 fixing claw, 63 external thread ring, 64 slide column, 65 spring one, 66 limit ring, 67 friction plate, 68 stabilizing outer ring, 7 reinforcement mechanism, 71 guide groove, 72 reinforcement ring, 73 connecting ring sleeve, 74 extrusion ring, 75 spring two. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-5 , This embodiment provides a technical solution: a split capacitance level gauge connection structure, including a mounting column 1, a fixing mechanism 6 and a reinforcement mechanism 7;

[0025] Mounting column 1: An upper socket 2 is provided in the middle of its upper end for connection to an external display, a lower socket 3 is provided in the middle of its lower end for connection to a probe, and evenly distributed slide grooves 4 are provided on the outer surface of the mounting column 1 at the lower end;

[0026] The fixing mechanism 6 includes a rack plate 61, a fixing claw 62 and an external threaded ring 63. The rack plates 61 are slidably connected to the inside of the slide groove 4. The fixing claws 62 are rotatably connected to the inner lower end of the slide groove 4. The rack plate 61 is meshed with the gears at the ends of the fixing claws 62. The external threaded ring 63 is slidably connected to the lower end of the outer surface of the mounting column 1. The upper ends of the outer ends of the six rack plates 61 are fixedly connected to the inner wall of the threaded outer ring 63, providing a basis for fixing the top wall of the equipment. The fixing mechanism 6 also includes a sliding column 64 and a spring 65. The sliding columns 64 are arranged at the inner lower end of the rack plate 61. The inner lower end of the slide groove 4 is provided with a mounting block 5. The outer surface of the sliding column 64 is slidably connected to the inner middle of the mounting block 5. A spring 65 is provided between the upper end of the mounting block 5 and the inner wall of the rack plate 61. 65, springs 65 are all sleeved on the outer surface of the sliding column 64, providing guidance and rebound effects for the rack plate 61, the fixing mechanism 6 also includes a limit ring 66 and a friction plate 67, the limit ring 66 is threadedly connected to the middle of the outer surface of the mounting column 1, the upper end of the outer surface of the limit ring 66 is provided with evenly distributed threads, the friction plate 67 is respectively arranged at the upper and lower ends of the limit ring 66, the material of the friction plate 67 is carbon fiber, which provides friction performance between structures and prevents the structure from loosening, the lower end of the friction plate 67 at the lower end is fitted with the upper end of the external thread ring 63, and the top wall of the device can be quickly fixed by moving the position of the limit ring 66, the fixing mechanism 6 also includes a stabilizing outer ring 68, the stabilizing outer ring 68 is threadedly connected to the outer surface of the external thread ring 63, and the surface of the device can be quickly fixed;

[0027] Reinforcement mechanism 7: It is arranged at the upper end of the outer surface of the mounting column 1. The reinforcement mechanism 7 also includes a guide groove 71, a reinforcement ring 72 and a connecting ring sleeve 73. The guide groove 71 is evenly arranged at the upper end of the outer surface of the mounting column 1. The reinforcement ring 72 is slidably connected to the upper end of the outer surface of the mounting column 1. The lower end of the reinforcement ring 72 is in contact with the upper end of the friction plate 67 at the upper end. The connecting ring sleeve 73 is threadedly connected to the outer surface of the reinforcement ring 72, and the reinforcement ring 72 and the limit ring 66 can be quickly connected to prevent the limit ring 66 from loosening due to the vibration of the equipment. The guide groove 71 is a 7-type step groove. The interior of the reinforcement ring 72 is provided with evenly distributed limit protrusions, and the outer surface of the limit protrusion cooperates with the inner wall of the guide groove 71 Installation provides a basis for fixing and releasing the reinforcement ring 72. The reinforcement mechanism 7 also includes an extrusion ring 74 and a second spring 75. The extrusion ring 74 is slidably connected to the upper end of the outer surface of the installation column 1. The lower end of the extrusion ring 74 is fitted with the upper end of the reinforcement ring 72. A second spring 75 is provided between the upper end of the extrusion ring 74 and the top wall of the installation column 1. The second spring 75 is sleeved on the upper end of the outer surface of the installation column 1 to facilitate fixing and releasing the reinforcement ring 72. A fixing and reinforcement mechanism is provided, which does not affect the installation and can also synchronously fix the upper and lower ends of the wall body, thereby improving the stability of the connection, effectively preventing the loose connection caused by equipment vibration, and can also be quickly installed and disassembled, which is convenient for subsequent maintenance and replacement of probes.

[0028] The working principle of a split capacitance level gauge connection structure provided by the utility model is as follows: when installing and connecting the split capacitance level gauge, first insert the probe into the lower socket 3, then insert the mounting column 1 into the mounting hole reserved for the equipment, rotate the limit ring 66 forward, the limit ring 66 moves downward, presses the external thread ring 63 to move downward, and the rack plate 61 moves downward synchronously, and the spring 1 65 is compressed. Because the rack plate 61 is meshed and connected with the fixed claw 62, as the rack plate 61 moves downward, the fixed claw 62 will deflect outward until the fixed claw 62 deflects outward by ninety degrees. At this time, the fixed claw 62 is parallel to the top wall of the equipment, and then the mounting column 1 is moved upward to make the fixed claw 62 fit with the top wall of the equipment, and then the outer ring is rotated to stabilize 68, so that the lower end of the stabilizing outer ring 68 is in contact with the surface of the equipment. At this time, the top wall and the surface of the equipment are fixed, and then reinforcement begins. The initial state of the reinforcement ring 72 is located at the upper end of the guide groove 71. The reinforcement ring 72 is rotated to make the limiting protrusion leave the step at the upper end of the guide groove 71. The reinforcement ring 72 is not restricted, and the spring 2 75 is not forced to expand, driving the extrusion ring 74 to move downward, continuously pressing the reinforcement ring 72, so that the lower end of the reinforcement ring 72 is in close contact with the surface of the friction plate 67, and then the connecting ring sleeve 73 is rotated forward, and the connecting ring sleeve 73 moves downward. Because the upper end of the outer surface of the limiting ring 66 is provided with evenly distributed threads, as the connecting ring sleeve 73 moves downward, the connecting ring sleeve 73 connects the limiting ring 66 with the reinforcement ring When the locking nut 72 is in the unlocking state, the locking nut 73 is in the unlocking state, and the locking nut 73 is in the unlocking state, so that the locking nut 73 is unlocked and the locking nut 73 is unlocked. The ring 72, spring two 75 and extrusion ring 74 continuously press the reinforcement ring 72 to keep the reinforcement ring 72 stationary, and then reverse the limit ring 66, and the limit ring 66 moves up. At this time, the rack plate 61 is not subjected to force, and the spring one 65 rebounds without force, driving the rack plate 61 to move up, and the fixing claw 62 also deflects downward by ninety degrees. At this time, the fixing claw 62 is not restricted by the top wall of the equipment, and the mounting column 1 is pulled up to bring out the probe, and then the probe can be inspected and replaced. A fixing and reinforcement mechanism is provided, which does not affect the installation and can also synchronously fix the upper and lower ends of the wall body, thereby improving the stability of the connection, effectively preventing the connection from loosening due to equipment vibration, and can also be quickly installed and disassembled, which is convenient for subsequent inspection and replacement of the probe.

[0029] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A split capacitance level gauge connection structure, characterized in that: It comprises a mounting column (1), a fixing mechanism (6) and a reinforcing mechanism (7); The mounting column (1) has an upper socket (2) in the middle of its upper end, a lower socket (3) in the middle of its lower end, and evenly distributed sliding grooves (4) in the outer surface of the mounting column (1) at the lower end; The fixing mechanism (6) comprises a rack plate (61), a fixing claw (62) and an external thread ring (63), wherein the rack plates (61) are all slidably connected to the inside of the slide groove (4), the fixing claws (62) are all rotatably connected to the lower end of the inside of the slide groove (4), the rack plates (61) and the fixing claws (62) are meshed with gears at the ends of the rack plates (61) and the fixing claws (62), the external thread ring (63) is slidably connected to the lower end of the outer surface of the mounting column (1), and the upper ends of the outer ends of the six rack plates (61) are all fixedly connected to the inner wall of the external thread ring (63); Reinforcement mechanism (7): It is arranged on the upper end of the outer surface of the mounting column (1).

2. A split capacitance level gauge connection structure according to claim 1, characterized in that: The fixing mechanism (6) further comprises a slide column (64) and a spring (65), wherein the slide column (64) is arranged at the lower end of the interior of the rack plate (61), a mounting block (5) is arranged at the lower end of the interior of the slide groove (4), the outer surface of the slide column (64) is slidably connected to the middle of the interior of the mounting block (5), a spring (65) is arranged between the upper end of the mounting block (5) and the inner wall of the rack plate (61), and the spring (65) is sleeved on the outer surface of the slide column (64).

3. A split capacitance level gauge connection structure according to claim 2, characterized in that: The fixing mechanism (6) further comprises a limiting ring (66) and a friction plate (67); the limiting ring (66) is threadedly connected to the middle portion of the outer surface of the mounting column (1); the upper end of the outer surface of the limiting ring (66) is provided with evenly distributed threads; the friction plate (67) is respectively arranged at the upper and lower ends of the limiting ring (66); the lower end of the friction plate (67) at the lower end is in contact with the upper end of the external thread ring (63).

4. A split capacitance level gauge connection structure according to claim 3, characterized in that: The fixing mechanism (6) further comprises a stabilizing outer ring (68), wherein the stabilizing outer ring (68) is threadedly connected to the outer surface of the external threaded ring (63).

5. The connection structure of a split capacitance level gauge according to claim 3, characterized in that: The reinforcement mechanism (7) further comprises a guide groove (71), a reinforcement ring (72) and a connecting ring sleeve (73); the guide groove (71) is evenly arranged at the upper end of the outer surface of the mounting column (1); the reinforcement ring (72) is slidably connected to the upper end of the outer surface of the mounting column (1); the lower end of the reinforcement ring (72) is in contact with the upper end of the friction plate (67); and the connecting ring sleeve (73) is threadedly connected to the outer surface of the reinforcement ring (72).

6. A split capacitance level gauge connection structure according to claim 5, characterized in that: The guide groove (71) is a 7-shaped step groove, and evenly distributed limiting protrusions are provided inside the reinforcement ring (72), and the outer surfaces of the limiting protrusions are mounted in cooperation with the inner wall of the guide groove (71).

7. A split capacitance level gauge connection structure according to claim 6, characterized in that: The reinforcement mechanism (7) further comprises an extrusion ring (74) and a second spring (75); the extrusion ring (74) is slidably connected to the upper end of the outer surface of the mounting column (1); the lower end of the extrusion ring (74) is in contact with the upper end of the reinforcement ring (72); a second spring (75) is provided between the upper end of the extrusion ring (74) and the top wall of the mounting column (1); the second spring (75) is sleeved on the upper end of the outer surface of the mounting column (1).

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