Connecting seat sealing structure of capacitive liquid level meter

Abstract

The utility model relates to the technical field of liquidometer sealing, and discloses a connecting seat sealing structure of a capacitive liquidometer, which comprises a protective shell and a connecting cylinder positioned at the bottom of the protective shell, a connecting seat and a positioning column are fixedly mounted at one end, far away from the protective shell, of the connecting cylinder, a threaded groove is formed in the middle of the connecting seat, and the positioning column is positioned in the threaded groove. And a conductive column fixedly mounted with the connecting seat is arranged in the middle of the threaded groove. According to the connecting base sealing structure of the capacitive liquid level meter, the first sealing block and the second sealing block are arranged to be the same in structure and are matched with the positioning columns to correspond to the positioning holes, the first sealing block and the second sealing block can be connected with the connecting base, the threaded connecting columns and the probes, and then threaded connection of the fixing screws and the fixing nuts is matched; the first sealing block and the second sealing block can be rapidly fixed, and the sealing performance of the device is improved by clamping the first sealing strip, the second sealing strip and the third sealing strip into the first sealing groove, the second sealing groove and the third sealing groove.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid level meter sealing technical field, concretely is a kind of electric capacity type liquid level meter's connecting seat sealing structure. BACKGROUND

[0002] Capacitance type liquid level meter is based on capacitance induction principle, when the medium to be measured dips the height change of measuring electrode, causes its capacitance change.It can convert the change of various level, liquid level medium height into standard current signal, remote transmission to operating control room for secondary instrument or computer device carries out centralized display, alarm or automatic control, capacitance type liquid level meter is to measure the change of liquid level by measuring capacitance.It is a metal rod inserted into liquid container, metal rod as one pole of capacitor, container wall as another pole of capacitor.The medium between two electrodes is liquid and gas above it.Because the dielectric constant ε1 of liquid and the dielectric constant ε2 on liquid level are different, for example: ε1> ε2, when liquid level rises, the total dielectric constant value between the two electrodes of capacitance type liquid level meter increases, so the capacitance increases.Conversely, when liquid level drops, ε value decreases, and capacitance also decreases.So, capacitance type liquid level meter can measure the height of liquid level by the change of capacitance between two electrodes.The sensitivity of capacitance level meter mainly depends on the difference between two dielectric constants, and only the constant of ε1 and ε2 can ensure the accuracy of liquid level measurement, because the medium to be measured has conductivity, so the metal rod electrode is covered with an insulating layer.Capacitance level meter is small in size, easy to realize remote transmission and adjustment, suitable for liquid level measurement of corrosive and high-pressure medium.

[0003] Chinese utility model patent publication number: CN 217637545 U, discloses: a kind of electric capacity type liquid level meter sealing mechanism, the electric capacity type liquid level meter sealing mechanism, through the one end installation of probe pull plate, pull plate and probe are sleeve connection, pull plate one end connects sealing plate, sealing plate is packed closed to joint, strengthens sealing effect, the use structure of sealing plate is adjustable, sealing plate is connected using telescopic piece, by contracting telescopic piece, sealing plate is pasted with joint, electric capacity type liquid level meter is sealed, controllability is strengthened, but the electric capacity type liquid level meter sealing mechanism, not set the detachable mode of sealing structure, it is inconvenient to maintain the device in later period, long-term use can make the sealing mechanism aging, after aging, it can affect sealing property, to cause sealing effect to reduce, practicality is poor. SUMMARY

[0004] The utility model solves the technical problems that a kind of electric capacity type liquid level meter's connecting seat sealing structure can effectively solve the problems in the prior art.

[0005] The utility model discloses a technical scheme adopted is: a kind of connecting seat sealing structure of capacitive liquid level meter, including protective housing and the connecting cylinder located at the bottom of protective housing, the one end of connecting cylinder away from protective housing is fixedly installed with connecting seat and locating column, the central position of connecting seat is equipped with thread groove, the central position of thread groove is provided with the electrically conductive column fixedly installed with connecting seat, the outer surface of connecting seat is provided with sealing strip one, the one end of locating column away from connecting cylinder is threadedly connected with lock nut, the side of connecting seat away from connecting cylinder is provided with threaded connecting column, the side of threaded connecting column away from connecting seat is fixedly installed with probe, the outer surface of threaded connecting column is provided with sealing strip two, the outer surface of probe is provided with sealing strip three, the side of threaded connecting column close to connecting seat is equipped with electrically conductive groove, the outer surface of connecting seat, threaded connecting column and probe is provided with sealing assembly;

[0006] The sealing assembly includes first sealing block, second sealing block, locating hole, first sealing groove, second sealing groove, third sealing groove, fixing groove, fixing screw and fixing nut. The outer surfaces of the connecting seat, threaded connecting column and probe are provided with first sealing block and second sealing block. The one end of the first sealing block and second sealing block close to the connecting cylinder is equipped with a locating hole. The one side of the first sealing block and second sealing block close to the connecting seat inside is equipped with a first sealing groove. The one side of the first sealing block and second sealing block close to the threaded connecting column inside is equipped with a second sealing groove. The one side of the first sealing block and second sealing block close to the probe inside is equipped with a third sealing groove. The outer surfaces of the first sealing block and second sealing block are both equipped with a fixing groove. The fixing screw is arranged on the inner side of the fixing groove close to the second sealing block. The fixing nut is arranged on the inner side of the fixing groove close to the first sealing block. The first sealing block and second sealing block are fixedly installed through the fixing screw and fixing nut.

[0007] Preferably, the right side of the protective housing is threadedly installed with an LED meter head. The left side of the protective housing is threadedly installed with a rotating twist head. The top of the protective housing is fixedly installed with an electrical interface.

[0008] Through the above technical scheme, the LED meter head and the rotating twist head are threadedly installed with the protective housing. The LED meter head and the rotating twist head are convenient to rotate. The internal electronic components are convenient to check. The electrical interface is arranged. The device is convenient to provide power for work.

[0009] Preferably, the threaded connecting column is threadedly connected with the thread groove. The electrically conductive column is matched with the electrically conductive groove.

[0010] Through the above technical scheme, when the probe is installed, the threaded connecting column is threadedly connected with the thread groove. The probe can be quickly installed at the bottom of the connecting seat. The electrically conductive column is matched with the electrically conductive groove. The capacitance information can be transmitted to the capacitive level sensor.

[0011] Preferably, the positioning column is provided with six groups of the same, and the six groups of the positioning column are annularly distributed at the bottom of the connecting cylinder and correspond to the positioning holes one by one.

[0012] Through the above technical scheme, the positioning column and the positioning hole correspond to each other, the sealing assembly can be guided during installation, and the sealing assembly and the connecting seat can be quickly connected by cooperating with the threaded installation of the locking nut and the positioning column, thereby reducing the installation difficulty.

[0013] Preferably, the first sealing groove, the second sealing groove and the third sealing groove are arranged in the interior of the sealing assembly in sequence vertically downward, and the first sealing groove, the second sealing groove and the third sealing groove correspond to the sealing strip one, the sealing strip two and the sealing strip three one by one.

[0014] Through the above technical scheme, by setting the first sealing groove, the second sealing groove and the third sealing groove to correspond to the sealing strip one, the sealing strip two and the sealing strip three one by one, the sealing strip one, the sealing strip two and the sealing strip three can be clamped into the first sealing groove, the second sealing groove and the third sealing groove during installation, so that an effective sealing space can be formed in the sealing assembly, gas leakage can be prevented, and dust, moisture and other impurities in the outside can be prevented from invading, thereby improving the sealing property of the device.

[0015] Preferably, the first sealing block and the second sealing block are the same in structure, and the first sealing block and the second sealing block are symmetrically distributed on the outer surfaces of the connecting seat, the threaded connecting column and the probe.

[0016] Through the above technical scheme, by setting the first sealing block and the second sealing block to be the same in structure, the first sealing block and the second sealing block can be quickly installed on the outer surfaces of the connecting seat, the threaded connecting column and the probe, and the first sealing block and the second sealing block can be quickly fixed by cooperating with the threaded connection of the fixing screw and the fixing nut, and the utility is high because the maintenance personnel can quickly disassemble the capacitive liquid level meter later.

[0017] Preferably, the sealing strip three is provided with three groups of the same, and the three groups of the sealing strip three are equally distributed on the probe.

[0018] Through the above technical scheme, by setting three groups of the same sealing strip three, the sealing effect is effectively improved, and the measured liquid can be prevented from contacting the electronic element to affect the stability of the measurement data.

[0019] Compared with the prior art, the connecting seat sealing structure of the capacitive liquid level meter has the following beneficial effects:

[0020] 1. The connecting seat sealing structure of the capacitive liquid level meter, through the structure same of the first sealing block and the second sealing block, and the one-to-one correspondence of the positioning column and the positioning hole, the first sealing block and the second sealing block can be quickly installed on the outer surface of the connecting seat, the threaded connecting column and the probe, through the threaded connection of the locking nut and the positioning column, the fixation of the first sealing block and the second sealing block and the connecting seat can be strengthened, through the threaded connection of the fixing screw and the fixing nut, the quick fixation of the first sealing block and the second sealing block can be realized, through the detachable design of the first sealing block and the second sealing block and the connecting seat, the disassembly of the capacitive liquid level by the later maintenance personnel is facilitated, the sealing effect of the device can be prolonged by replacing the sealing strip;

[0021] 2. The connecting seat sealing structure of the capacitive liquid level meter, through the structure same of the first sealing block and the second sealing block, and the one-to-one correspondence of the positioning column and the positioning hole, the first sealing block and the second sealing block can be quickly installed on the outer surface of the connecting seat, the threaded connecting column and the probe, through the threaded connection of the locking nut and the positioning column, the fixation of the first sealing block and the second sealing block and the connecting seat can be strengthened, through the threaded connection of the fixing screw and the fixing nut, the quick fixation of the first sealing block and the second sealing block can be realized, through the detachable design of the first sealing block and the second sealing block and the connecting seat, the disassembly of the capacitive liquid level by the later maintenance personnel is facilitated, the sealing effect of the device can be prolonged by replacing the sealing strip; DRAWINGS

[0022] Figure 1 The utility model discloses a three-dimensional structure schematic diagram Figure 1 ;

[0023] Figure 2 The utility model discloses a three-dimensional structure schematic diagram Figure 2 ;

[0024] Figure 3 It is connecting structure schematic drawing of sealing assembly and connecting cylinder of the utility model;

[0025] Figure 4 It is connecting structure schematic drawing of connecting seat and probe of the utility model;

[0026] Figure 5 It is installation structure schematic drawing of probe and sealing assembly of the utility model;

[0027] Figure 6 It is sealing assembly structure schematic diagram of the utility model.

[0028] The components include: 1. Protective housing; 2. LED meter head; 3. Rotary head; 4. Electrical interface; 5. Connecting cylinder; 6. Connecting seat; 7. Conductive post; 8. Positioning post; 9. Sealing strip one; 10. Threaded groove; 11. Locking nut; 12. Threaded connecting post; 13. Probe; 14. Sealing strip two; 15. Sealing strip three; 16. Conductive groove; 17. Sealing assembly; 1701. First sealing block; 1702. Second sealing block; 1703. Positioning hole; 1704. First sealing groove; 1705. Second sealing groove; 1706. Third sealing groove; 1707. Fixing groove; 1708. Fixing screw; 1709. Fixing nut. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1: As Figures 1-6 As shown, the present invention provides a sealing structure for a capacitive level gauge connection seat, including a protective shell 1 and a connecting cylinder 5 located at the bottom of the protective shell 1. A connecting seat 6 and a positioning post 8 are fixedly installed at the end of the connecting cylinder 5 away from the protective shell 1. A threaded groove 10 is provided at the center of the connecting seat 6. A conductive post 7 is fixedly installed at the center of the threaded groove 10 and is fixedly installed with the connecting seat 6. A sealing strip 9 is provided on the outer surface of the connecting seat 6. A locking nut 11 is threadedly connected to the end of the positioning post 8 away from the connecting cylinder 5. A threaded connecting post 12 is provided on the side of the connecting seat 6 away from the connecting cylinder 5. A probe 13 is fixedly installed on the side of the threaded connecting post 12 away from the connecting seat 6. A sealing strip 14 is provided on the outer surface of the threaded connecting post 12. A sealing strip 15 is provided on the outer surface of the probe 13. A conductive groove 16 is provided on the side of the threaded connecting post 12 close to the connecting seat 6. A sealing assembly 17 is provided on the outer surfaces of the connecting seat 6, the threaded connecting post 12, and the probe 13.

[0031] The sealing assembly 17 comprises a first sealing block 1701, a second sealing block 1702, a positioning hole 1703, a first sealing groove 1704, a second sealing groove 1705, a third sealing groove 1706, a fixing groove 1707, a fixing screw 1708 and a fixing nut 1709, the outer surface of the connecting seat 6, the threaded connecting column 12 and the probe 13 is provided with the first sealing block 1701 and the second sealing block 1702, the first sealing block 1701 and the second sealing block 1702 are provided with the positioning hole 1703 near one end of the connecting cylinder 5, the first sealing block 1701 and the second sealing block 1702 are provided with the first sealing groove 1704 near one side of the connecting seat 6 inside, the first sealing block 1701 and the second sealing block 1702 are provided with the second sealing groove 1705 near one side of the threaded connecting column 12 inside, the first sealing block 1701 and the second sealing block 1702 are provided with the third sealing groove 1706 near one side of the probe 13 inside, the outer surface of the first sealing block 1701 and the second sealing block 1702 is provided with the fixing groove 1707, the fixing groove 1707 is provided with the fixing screw 1708 near the second sealing block 1702 inside, the fixing groove 1707 is provided with the fixing nut 1709 near the first sealing block 1701 inside, and the first sealing block 1701 and the second sealing block 1702 are fixedly installed through the fixing screw 1708 and the fixing nut 1709.

[0032] Specifically, the LED meter head 2 is threadedly installed on the right side of the protective shell 1, the rotating twist head 3 is threadedly installed on the left side of the protective shell 1, and the electrical interface 4 is fixedly installed on the top of the protective shell 1. The advantages are that the LED meter head 2 and the rotating twist head 3 are threadedly installed on the protective shell 1, which facilitates the rotation of the LED meter head 2 and the rotating twist head 3, and facilitates the inspection of the internal electronic elements. Through the setting of the electrical interface 4, power can be provided for the equipment to work.

[0033] Specifically, the threaded connecting column 12 is threadedly connected with the threaded groove 10, and the conductive column 7 is matched with the conductive groove 16. The advantages are that when the probe 13 is installed, the threaded connecting column 12 is threadedly connected with the threaded groove 10, which can quickly install the probe 13 at the bottom of the connecting seat 6, and then the conductive column 7 is matched with the conductive groove 16, which can transmit the capacitance information to the capacitive level sensor.

[0034] Specifically, the positioning column 8 is provided with six groups of the same, and the six groups of the positioning column 8 are annularly distributed at the bottom of the connecting cylinder 5. The positioning column 8 corresponds to the positioning hole 1703 one by one. The advantages are that the positioning column 8 corresponds to the positioning hole 1703 one by one, which can guide the sealing assembly 17 when the sealing assembly 17 is installed, and then the locking nut 11 is threadedly installed with the positioning column 8, so as to realize the quick connection of the sealing assembly 17 and the connecting seat 6, and reduce the installation difficulty.

[0035] Embodiment two: as Figures 2-6As an improvement over the previous embodiment.

[0036] Specifically, the first sealing groove 1704, the second sealing groove 1705 and the third sealing groove 1706 are arranged in the inside of the sealing assembly 17 in sequence from top to bottom, and the first sealing groove 1704, the second sealing groove 1705 and the third sealing groove 1706 correspond to the sealing strip one 9, the sealing strip two 14 and the sealing strip three 15 respectively. The advantage is that by setting the first sealing groove 1704, the second sealing groove 1705 and the third sealing groove 1706 corresponding to the sealing strip one 9, the sealing strip two 14 and the sealing strip three 15 respectively, the sealing strip one 9, the sealing strip two 14 and the sealing strip three 15 can be clamped into the first sealing groove 1704, the second sealing groove 1705 and the third sealing groove 1706 during installation, so as to form an effective sealing space in the sealing assembly 17, prevent gas leakage, and prevent dust, moisture and other impurities from the outside from entering, thereby improving the sealing performance of the device.

[0037] Specifically, the first sealing block 1701 and the second sealing block 1702 have the same structure, and are symmetrically distributed on the outer surface of the connecting seat 6, the threaded connecting column 12 and the probe 13. The advantage is that by setting the first sealing block 1701 and the second sealing block 1702 to have the same structure, the first sealing block 1701 and the second sealing block 1702 can be quickly installed on the outer surface of the connecting seat 6, the threaded connecting column 12 and the probe 13, and then the first sealing block 1701 and the second sealing block 1702 can be quickly fixed through the threaded connection of the fixing screw 1708 and the fixing nut 1709, which is convenient for the maintenance personnel to quickly disassemble the capacitive liquid level meter in the later period, and has high practicability.

[0038] Specifically, the sealing strip three 15 is provided with three groups of the same structure, and the three groups of sealing strip three 15 are equidistantly distributed on the probe 13. The advantage is that by setting three groups of the same sealing strip three 15, the sealing effect is effectively improved, and the measured liquid is prevented from contacting the electronic elements, so as to affect the stability of the measurement data.

[0039] Working principle: in use, through the threaded connection of threaded connection column 12 and threaded groove 10, the probe 13 can be quickly installed at the bottom of the connecting seat 6, and the conductive column 7 is matched with the conductive groove 16, the capacitance information can be transmitted to the capacitive level sensor, and the positioning column 8 is matched with the positioning hole 1703 one by one, the sealing assembly 17 is guided when the sealing assembly 17 is installed, the sealing assembly 17 and the connecting seat 6 are quickly connected, and the sealing assembly 17 and the connecting seat 6 are quickly fixed through the threaded connection of the locking nut 11 and the positioning column 8, the first sealing block 1701 and the second sealing block 1702 are quickly installed on the outer surface of the connecting seat 6, the threaded connection column 12 and the probe 13, and the first sealing block 1701 and the second sealing block 1702 are quickly fixed through the threaded connection of the fixed screw 1708 and the fixed nut 1709, which is convenient for the maintenance personnel to quickly disassemble the capacitive liquid level meter, the sealing assembly 17 and the connecting seat 6 are detachable, which is convenient for the maintenance personnel to maintain and replace the sealing assembly 17, and the utility is high, the first sealing groove 1704, the second sealing groove 1705 and the third sealing groove 1706 are matched with the sealing strip one 9, the sealing strip two 14 and the sealing strip three 15, the sealing strip one 9, the sealing strip two 14 and the sealing strip three 15 are clamped into the first sealing groove 1704, the second sealing groove 1705 and the third sealing groove 1706, and three groups of the same sealing strip three 15 are arranged, which effectively improves the sealing property of the device, prevents liquid from contacting the electronic element, and affects the stability of the measurement data.

[0040] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A sealing structure of a connecting seat of a capacitive liquid level meter, comprising a protective shell (1) and a connecting cylinder (5) located at the bottom of the protective shell (1), characterized in that: The connecting barrel (5) is fixedly installed with a connecting seat (6) and a positioning column (8) away from one end of the protective shell (1), a threaded groove (10) is formed in the middle position of the connecting seat (6), a conductive column (7) is fixedly installed with the connecting seat (6) in the middle position of the threaded groove (10), a sealing strip one (9) is arranged on the outer surface of the connecting seat (6), a lock nut (11) is threadedly connected to one end of the positioning column (8) away from the connecting barrel (5), a threaded connecting column (12) is arranged on one side of the connecting seat (6) away from the connecting barrel (5), a probe (13) is fixedly installed on one side of the threaded connecting column (12) away from the connecting seat (6), a sealing strip two (14) is arranged on the outer surface of the threaded connecting column (12), a sealing strip three (15) is arranged on the outer surface of the probe (13), a conductive groove (16) is formed in the side of the threaded connecting column (12) close to the connecting seat (6), and the outer surfaces of the connecting seat (6), the threaded connecting column (12) and the probe (13) are provided with a sealing assembly (17); The sealing assembly (17) comprises first and second sealing blocks (1701 and 1702), positioning holes (1703), first, second and third sealing grooves (1704, 1705 and 1706), fixing grooves (1707), fixing screws (1708) and fixing nuts (1709), the outer surfaces of the connecting seat (6), the threaded connecting column (12) and the probe (13) are provided with the first and second sealing blocks (1701 and 1702), the first and second sealing blocks (1701 and 1702) are provided with the positioning holes (1703) at one end close to the connecting barrel (5), the first and second sealing blocks (1701 and 1702) are provided with the first sealing grooves (1704) at one side close to the connecting seat (6) in the interiors, the first and second sealing blocks (1701 and 1702) are provided with the second sealing grooves (1705) at one side close to the threaded connecting column (12) in the interiors, the first and second sealing blocks (1701 and 1702) are provided with the third sealing grooves (1706) at one side close to the probe (13) in the interiors, the outer surfaces of the first and second sealing blocks (1701 and 1702) are provided with the fixing grooves (1707), the fixing screws (1708) are arranged in the fixing grooves (1707) at the inner side close to the second sealing block (1702), the fixing nuts (1709) are arranged in the fixing grooves (1707) at the inner side close to the first sealing block (1701), and the first and second sealing blocks (1701 and 1702) are fixedly installed through the fixing screws (1708) and the fixing nuts (1709).

2. The seal structure of the connecting seat of the capacitive liquid level meter according to claim 1, characterized in that: The right side of the protective shell (1) is threadedly installed with an LED meter head (2), the left side of the protective shell (1) is threadedly installed with a rotary twist head (3), and the top of the protective shell (1) is fixedly installed with an electrical interface (4).

3. The seal structure of the connecting seat of the capacitive liquid level meter according to claim 1, characterized in that: The threaded connecting column (12) is in threaded connection with the threaded groove (10), and the conductive column (7) is matched with the conductive groove (16).

4. The seal structure of the connecting seat of the capacitive liquid level meter according to claim 1, characterized in that: The positioning column (8) is provided with the same six groups, six groups of the positioning column (8) are annularly distributed at the bottom of the connecting cylinder (5), and the positioning column (8) is one-to-one corresponding to the positioning hole (1703).

5. The seal structure of a connecting seat of a capacitive liquid level meter according to claim 1, characterized in that: The first sealing groove (1704), the second sealing groove (1705) and the third sealing groove (1706) are arranged in sequence vertically downward in the inside of the sealing assembly (17), and the first sealing groove (1704), the second sealing groove (1705) and the third sealing groove (1706) are one-to-one corresponding to the sealing strip one (9), the sealing strip two (14) and the sealing strip three (15).

6. The seal structure of a connecting seat of a capacitive liquid level meter according to claim 1, characterized in that: The first sealing block (1701) and the second sealing block (1702) are the same in structure, and the first sealing block (1701) and the second sealing block (1702) are symmetrically distributed on the outer surface of the connecting seat (6), the threaded connecting column (12) and the probe (13).

7. The seal structure of a connecting seat of a capacitive liquid level meter according to claim 1, characterized in that: The sealing strip three (15) is provided with the same three groups, and three groups of the sealing strip three (15) are equally distributed on the probe (13).

Images