Temperature, pressure and liquid level composite wireless pressure transmitter

Abstract

The utility model relates to the technical field of temperature, pressure and liquid level composite type wireless pressure transmitters, and discloses a temperature, pressure and liquid level composite type wireless pressure transmitter, which comprises a transmitter main body, an arc plate and a round cover, a first annular plate is fixedly connected to the middle side of the rear portion of the third annular plate, a plurality of clamping blocks are fixedly connected to the rear side of the interior of the transmitter body at equal intervals, a plurality of circular grooves are formed in the rear side of the interior of the transmitter body at equal intervals, and a second annular plate is fixedly connected to the middle side of the front portion of the circular cover. And an annular groove is formed in the middle side of the front part of the second annular plate. According to the utility model, the annular plate is fixed and the circular groove is arranged in the transmitter main body through structures such as the circular cover, and the circular cover is rotated and clamped to solve the problem of complexity in fixing the rear cover through bolts. Through cooperation of the first cylinder and other structures, the arc plate can be rapidly detached, and the problem that temperature sensor temporary detection wire threaded connection is easy to wear and influences stability is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of transmitters, in particular to a temperature, pressure and liquid level composite wireless pressure transmitter. Background Technique

[0002] A transmitter is a device used to convert a measurement signal into a standard output signal. Its background technology involves multiple fields such as measurement principles, signal conversion technologies, and sensor technologies. The core function of a transmitter is to convert the physical quantities measured by a sensor (such as temperature, pressure, flow rate, etc.) into electrical signals or other standard signals (such as 4 - 20 mA, 0 - 10 V, etc.) for subsequent monitoring, control, and data processing. Early transmitters mainly relied on mechanical principles, but with the development of electronic technology, modern transmitters generally adopt digital and intelligent designs, improving measurement accuracy and system reliability;

[0003] A transmitter is a device used to convert the physical quantities obtained by measurement (such as temperature, pressure, flow rate, etc.) into a standardized output signal. Its main structure includes a sensor part (for directly measuring physical quantities), a signal processing unit (for signal amplification and processing), a converter (converting the processed signal into a standard signal), and a power supply and communication interface (providing power and connecting to a control system). The working principle is that the sensor measures the physical quantity and generates a preliminary signal, the signal processing unit processes the signal, the converter converts the processed signal into a standardized output signal, and then transmits it to the monitoring and control system through the output interface;

[0004] The operation of the transmitter using a relatively large number of bolts to fix the rear cover for wiring is cumbersome. Frequent disassembly and installation are likely to cause the bolts to loosen and slip, affecting the sealing performance and fixing strength, and may cause impurities to enter the interior, affecting the performance and service life, and even resulting in inaccurate measurement or equipment failure; and for the temporary detection of the temperature sensor of the transmitter, the wire and the sensor are connected by threads, and frequent replacement of the detection point is likely to cause thread wear, affecting the connection tightness and stability, and further affecting the accuracy of temperature measurement. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a temperature, pressure and liquid level composite wireless pressure transmitter, aiming to improve the problems in the prior art that the wiring of the rear cover fixed by bolts of the transmitter is cumbersome, easy to loosen and affect the sealing and strength; the wire of the temperature sensor is connected by threads, and frequent replacement of the detection point is easy to wear and affect the measurement accuracy.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A temperature, pressure and liquid level composite wireless pressure transmitter, comprising a transmitter main body, an arc plate and a round cover. A third ring plate is fixedly connected to the rear side inside the transmitter main body; a first ring plate is fixedly connected to the middle side of the rear part of the third ring plate. A plurality of clamping blocks are fixedly connected to the rear side inside the transmitter main body at equal intervals, and a plurality of round grooves are opened at equal intervals on the rear side inside the transmitter main body.

[0008] A second ring plate is fixedly connected to the middle side of the front part of the round cover, and an annular groove is opened on the middle side of the front part of the second ring plate; a plurality of L-shaped grooves are opened at equal intervals on the middle side of the front part of the second ring plate, and a plurality of cylindrical grooves are opened at equal intervals on the outside of the second ring plate. One end of a first spring is fixedly connected to one side inside each of the cylindrical grooves, and the other end of each first spring is fixedly connected to a ball.

[0009] The output ends of the transmitter main body are respectively fixedly connected with a first wire, a second wire and a third wire. The lower ends of the first wire and the second wire are respectively fixedly connected with a pressure sensor and a liquid level sensor. The lower end of the third wire penetrates through a first U-shaped cylinder and is fixedly connected with a third U-shaped cylinder.

[0010] A first cylinder is fixedly connected to the middle side of the upper part of the arc plate. A second cylinder is fixedly connected to the inside of the first cylinder. A temperature sensor is fixedly connected to the bottom side of the second cylinder. An input end of the temperature sensor is fixedly connected with a fourth wire. A fourth ring plate is fixedly connected to the middle side inside the second cylinder.

[0011] One end of a third spring is fixedly connected to the upper part of the fourth ring plate, and the other end of the third spring is fixedly connected to the lower part of a fifth ring plate. The fifth ring plate slides inside the second cylinder. A fourth wire is fixedly connected to the inside of the fifth ring plate. One end of a second spring is fixedly connected to the upper side of the outside of the first cylinder, and the other end of the second spring is fixedly connected to the upper side inside a second U-shaped cylinder.

[0012] The lower part of the second U-shaped cylinder is in contact with the first U-shaped cylinder, and the fourth wire is engaged with the third U-shaped cylinder.

[0013] Two clamping rods are fixedly connected to the upper side of the outside of the first cylinder at equal intervals. Two special-shaped holes are opened at equal intervals on the left and right sides of the outside of the second U-shaped cylinder. The clamping rods are engaged with the special-shaped holes.

[0014] The first ring plate is engaged with the annular groove.

[0015] The clamping blocks are all engaged with the L-shaped grooves, and the round grooves are all engaged with the balls.

[0016] A plurality of straight plates are fixedly connected to the lower part of the arc plate at equal intervals.

[0017] The utility model has the following beneficial effects:

[0018] 1. The utility model uses a round cover and other structures to fix the third ring plate and the first ring plate inside the transmitter body, and sets a fixing block and a round groove; the round cover with the ring groove is inserted into the first ring plate at the rear of the third ring plate and fits tightly, and the round cover is rotated to engage the L-shaped groove with the fixing block, and the ball with the first spring is engaged with the round groove, so as to solve the problem that the wiring operation of the transmitter rear cover fixed by bolts is cumbersome and frequent disassembly easily causes the bolts to loosen and slip, affecting the sealing and fixing strength.

[0019] 2. The utility model cooperates with the first cylinder and other structures. If the arc plate is to be quickly disassembled, the first U-shaped cylinder with the second spring is pulled downward to disengage the special-shaped hole of the second U-shaped cylinder from the clamping rod, and the second U-shaped cylinder with the third wire is pulled out; when engaged, the first U-shaped cylinder supports the second U-shaped cylinder under the action of the second spring to prevent the special-shaped hole from being disengaged from the clamping rod. A fourth fixing ring with a third spring is arranged inside the second cylinder, and the fourth wire of the fifth ring plate is driven to connect with the third U-shaped cylinder under the action of the third spring, so as to solve the problem that the wire is connected to the sensor thread when the transmitter temperature sensor is temporarily tested, and frequent changes of the test point are prone to wear of the thread, affecting the tightness and stability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the overall structure diagram of the temperature, pressure and liquid level composite wireless pressure transmitter of the utility model;

[0021] Figure 2 This is an expanded view of the temperature, pressure and liquid level composite wireless pressure transmitter of the utility model;

[0022] Figure 3 It is an expanded right view of the temperature, pressure and liquid level composite wireless pressure transmitter of the utility model;

[0023] Figure 4 It is a right sectional view of the temperature, pressure and liquid level composite wireless pressure transmitter of the utility model;

[0024] Figure 5 It is a top sectional view of the temperature, pressure and liquid level composite wireless pressure transmitter of the utility model.

[0025] Legend:

[0026] 1. Transmitter main body; 2. First wire; 3. Second wire; 4. Arc plate; 5. Straight plate; 6. First cylinder; 7. Liquid level sensor; 8. Pressure sensor; 9. Round cover; 10. First ring plate; 11. Clamping block; 12. Round groove; 13. Second ring plate; 14. L-shaped groove; 15. Ball; 16. Third ring plate; 17. Ring groove; 18. Third wire; 19. Special-shaped hole; 20. First U-shaped cylinder; 21. Second cylinder; 22. Fourth wire; 23. Clamping rod; 24. Temperature sensor; 25. First spring; 26. Second spring; 27. Cylindrical groove; 28. Second U-shaped cylinder; 29. Third spring; 30. Fourth ring plate; 31. Fifth ring plate; 32. Third U-shaped cylinder. Detailed implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0028] Refer to Figures 1 - 5 , a temperature, pressure and liquid level composite wireless pressure transmitter, including a transmitter main body 1, an arc plate 4, and a round cover 9. A third ring plate 16 is fixedly connected to the rear side inside the transmitter main body 1; a first ring plate 10 is fixedly connected to the middle side of the rear part of the third ring plate 16. A plurality of clamping blocks 11 are fixedly connected to the rear side inside the transmitter main body 1 at equal intervals, and a plurality of round grooves 12 are opened at equal intervals on the rear side inside the transmitter main body 1;

[0029] A second ring plate 13 is fixedly connected to the middle side of the front part of the round cover 9. A ring groove 17 is opened in the middle side of the front part of the second ring plate 13; a plurality of L-shaped grooves 14 are opened at equal intervals on the middle side of the front part of the second ring plate 13, and a plurality of cylindrical grooves 27 are opened at equal intervals on the outside of the second ring plate 13. One end of a first spring 25 is fixedly connected to one side inside each cylindrical groove 27, and the other end of the first spring 25 is fixedly connected to a ball 15;

[0030] The output ends of the transmitter main body 1 are respectively fixedly connected with a first wire 2, a second wire 3 and a third wire 18. The lower ends of the first wire 2 and the second wire 3 are respectively fixedly connected with a pressure sensor 8 and a liquid level sensor 7. The lower end of the third wire 18 penetrates through the first U-shaped cylinder 20 and is fixedly connected with a third U-shaped cylinder 32;

[0031] The upper middle side of the arc plate 4 is fixedly connected with a first cylinder 6. A second cylinder 21 is fixedly connected to the inside of the first cylinder 6. A temperature sensor 24 is fixedly connected to the bottom side of the second cylinder 21. The input end of the temperature sensor 24 is fixedly connected with a fourth wire 22. A fourth ring plate 30 is fixedly connected to the middle side inside the second cylinder 21;

[0032] One end of the third spring 29 is fixedly connected to the upper part of the fourth ring plate 30, and the other end of the third spring 29 is fixedly connected to the lower part of the fifth ring plate 31. The fifth ring plate 31 slides inside the second cylinder 21, and the fourth wire 22 is fixedly connected inside the fifth ring plate 31. One end of the second spring 26 is fixedly connected to the upper side of the outer part of the first cylinder 6, and the other end of the second spring 26 is fixedly connected to the upper side of the inner part of the second U-shaped cylinder 28.

[0033] The lower part of the second U-shaped tube 28 contacts the first U-shaped tube 20, the fourth wire 22 is engaged with the third U-shaped tube 32, two clamping rods 23 are equidistantly fixedly connected to the upper side of the outer side of the first cylinder 6, and two special-shaped holes 19 are equidistantly opened on the left and right sides of the outer side of the second U-shaped tube 28, and the clamping rods 23 are engaged with the special-shaped holes 19.

[0034] First, the third ring plate 16 and the first ring plate 10 are fixed inside the transmitter body 1, and a fixing block and a circular groove 12 are set. The circular cover 9 with the circular groove 17 is inserted into the first ring plate 10 behind the third ring plate 16 and fits tightly, and the circular cover 9 is rotated so that the L-shaped groove 14 is engaged with the fixing block, and the ball 15 with the first spring 25 is engaged with the circular groove 12, so as to solve the problem that the wiring operation of the rear cover of the transmitter body 1 is cumbersome and frequent disassembly may cause the bolts to loosen and slip, affecting the sealing and fixing strength;

[0035] Through the cooperation of the first cylinder 6 and other structures, if the arc plate 4 is to be quickly disassembled, the first U-shaped cylinder 20 with the second spring 26 is pulled downward to disengage the special-shaped hole 19 of the second U-shaped cylinder 28 from the clamping rod 23, and the second U-shaped cylinder 28 with the third wire 18 is pulled out. When engaged, the first U-shaped cylinder 20 supports the second U-shaped cylinder 28 under the action of the second spring 26 to prevent the special-shaped hole 19 from being disengaged from the clamping rod 23. A fourth fixing ring 30 with a third spring 29 is arranged inside the second cylinder 21, and the fourth wire 22 of the fifth ring plate 31 is driven to connect with the third U-shaped cylinder 32 under the action of the third spring 29, so as to solve the problem that the wire is threadedly connected to the sensor during temporary detection of the temperature sensor 24 of the transmitter body 1, and frequent changes of the detection point are prone to wear of the thread, affecting the tightness and stability of the connection.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A temperature, pressure and liquid level composite wireless pressure transmitter, characterized in that: The transmitter body (1) comprises a transmitter main body (1), an arc plate (4), and a round cover (9); a third ring plate (16) is fixedly connected to the inner rear side of the transmitter main body (1); a first ring plate (10) is fixedly connected to the rear middle side of the third ring plate (16); a plurality of clamping blocks (11) are fixedly connected to the inner rear side of the transmitter main body (1) at equal intervals; and a plurality of circular grooves (12) are provided at equal intervals on the inner rear side of the transmitter main body (1).

2. The temperature, pressure and liquid level composite wireless pressure transmitter according to claim 1 is characterized in that: A second ring plate (13) is fixedly connected to the middle front side of the circular cover (9), and a ring groove (17) is provided on the middle front side of the second ring plate (13); a plurality of L-shaped grooves (14) are equidistantly provided on the middle front side of the second ring plate (13), and a plurality of cylindrical grooves (27) are equidistantly provided on the outside of the second ring plate (13), one end of a first spring (25) is fixedly connected to one side of the inside of the cylindrical groove (27), and a ball (15) is fixedly connected to the other end of the first spring (25).

3. The temperature, pressure and liquid level composite wireless pressure transmitter according to claim 1 is characterized in that: The output end of the transmitter body (1) is fixedly connected to a first wire (2), a second wire (3) and a third wire (18), respectively; the lower ends of the first wire (2) and the second wire (3) are fixedly connected to a pressure sensor (8) and a liquid level sensor (7), respectively; the lower end of the third wire (18) passes through the first U-shaped tube (20) and is fixedly connected to the third U-shaped tube (32); A first cylinder (6) is fixedly connected to the middle side of the upper part of the arc plate (4); a second cylinder (21) is fixedly connected to the interior of the first cylinder (6); a temperature sensor (24) is fixedly connected to the bottom side of the second cylinder (21); a fourth wire (22) is fixedly connected to the input end of the temperature sensor (24); and a fourth ring plate (30) is fixedly connected to the middle side of the interior of the second cylinder (21); One end of a third spring (29) is fixedly connected to the upper part of the fourth ring plate (30), and the other end of the third spring (29) is fixedly connected to the lower part of a fifth ring plate (31). The fifth ring plate (31) slides inside the second cylinder (21), and the inside of the fifth ring plate (31) is fixedly connected to a fourth wire (22). One end of a second spring (26) is fixedly connected to the upper side of the outside of the first cylinder (6), and the other end of the second spring (26) is fixedly connected to the upper side of the inside of the second U-shaped cylinder (28).

4. The temperature, pressure and liquid level composite wireless pressure transmitter according to claim 3 is characterized in that: The lower part of the second U-shaped tube (28) contacts the first U-shaped tube (20), and the fourth wire (22) is engaged with the third U-shaped tube (32).

5. The temperature, pressure and liquid level composite wireless pressure transmitter according to claim 3 is characterized by: Two clamping rods (23) are fixedly connected to the upper side of the exterior of the first cylinder (6) at equal intervals, and two special-shaped holes (19) are opened at equal intervals on the left and right sides of the exterior of the second U-shaped cylinder (28), and the clamping rods (23) are engaged with the special-shaped holes (19).

6. The temperature, pressure and liquid level composite wireless pressure transmitter according to claim 1, characterized in that: The first ring plate (10) is engaged with the ring groove (17).

7. The temperature, pressure and liquid level composite wireless pressure transmitter according to claim 1, characterized in that: The clamping blocks (11) are all engaged with the L-shaped grooves (14), and the circular grooves (12) are all engaged with the balls (15).

8. The temperature, pressure and liquid level composite wireless pressure transmitter according to claim 3 is characterized by: A plurality of straight plates (5) are fixedly connected at equal intervals to the lower part of the arc plate (4).

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