Wide-range high-precision intelligent differential pressure transmitter

Abstract

The utility model discloses a wide-range high-precision intelligent differential pressure transmitter, which comprises a transmitter body, a detection head is arranged at the lower end of the transmitter body, a connector is inserted into the transmitter body, a support leg is formed at the lower end of the connector, a limiting assembly is arranged on the transmitter body, and the detection head is arranged on the lower end of the transmitter body. The connector is provided with fixing assemblies, the limiting assemblies and the fixing assemblies are fixed through screws, the number of the fixing assemblies is two, and a connecting piece is arranged between the two fixing assemblies. The sucker is attached to the table top, the screw is rotated to drive the piston to move, and negative pressure is formed in the inner cavity to enable the sucker to tightly suck the table top. And meanwhile, the sucker part is bent to enable the connector support legs to be in contact with the table top, so that the suction force of the sucker is enhanced, and the stability of the transmitter is improved by pressing the table top downwards through the connector.

Description

Technical Field

[0001] This utility model belongs to the field of pressure transmitter technology, and in particular relates to a large-range, high-precision intelligent differential pressure transmitter. Background Technology

[0002] A pressure transmitter is a device that converts pressure into pneumatic or electrical signals for control and remote transmission. It transforms the physical pressure parameters of gases, liquids, etc., sensed by pressure sensors into standard electrical signals (such as 4-20mA DC), which are then supplied to secondary instruments such as indicators, alarms, recorders, and controllers for measurement, indication, and process regulation. Based on a pressure transmitter provided in authorization announcement number CN220893658U, this utility model discloses a pressure transmitter, relating to the field of pressure measurement technology. This pressure transmitter includes a housing, a pressure sensor slidably connected to the inner wall of the housing, a base threadedly connected to the outer wall of the pressure sensor, an interface fixedly connected to the outer wall of the housing, a chuck fixedly connected to the outer wall of the interface, a connector inserted into the outer wall of the chuck, a groove formed on the outer wall of the chuck, a wedge elastically connected to the inner wall of the groove via a limiting spring, a slot formed on the outer wall of the connector, an elastic gasket provided on the inner wall of the connector, and a damping sleeve provided on the outer wall of the pressure sensor. This invention, by incorporating a connector, chuck, and elastic gasket, achieves a fixed connection between the connector and chuck, improves the sealing effect of the connector through the elastic gasket, and expands the applicability of the pressure transmitter by using connectors of different diameters.

[0003] However, existing technologies have some problems: since pressure transmitters are high-precision instruments and have a relatively large mass, if they are not placed stably and are dropped or bumped, the internal connecting parts may be damaged, deformed, cracked or loosened. In particular, if the sensor diaphragm inside the pressure transmitter is damaged, it will affect the measurement accuracy and stability. Therefore, we propose a large-range, high-precision intelligent differential pressure transmitter. Utility Model Content

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a large-range, high-precision intelligent differential pressure transmitter. This transmitter uses a suction cup to adhere to a tabletop, and rotating a screw drives a piston to move, creating a negative pressure within the inner cavity that firmly grips the suction cup. Simultaneously, bending the suction cup portion allows the connector legs to contact the tabletop, not only enhancing the suction cup's adhesion but also improving the transmitter's stability by pressing the connector down on the tabletop.

[0005] This utility model is implemented as follows: a large-range, high-precision intelligent differential pressure transmitter includes a transmitter body, a detection head is provided at the lower end of the transmitter body, a connector is inserted into the transmitter body, a support foot is formed at the lower end of the connector, a limit component is provided on the transmitter body, a fixing component is provided on the connector, the limit component and the fixing component are fixed by screws, the number of fixing components is two sets, and a connecting member is provided between the two sets of fixing components.

[0006] Optionally, the detection head is provided with a fixing ring, the detection head is inserted into the connector, the fixing ring is in contact with the connector, one end of the connector is provided with an input port, and the other end of the connector is provided with an output port.

[0007] Optionally, the limiting component includes a first card plate and a second card plate. A card block is fixedly connected to the first card plate, and a card slot is provided on the second card plate. The card block is correspondingly arranged with the card slot, and the card block is inserted into the card slot.

[0008] Optionally, a fixing groove is provided on the second plate of the first plate, and the fixing groove is correspondingly provided with a fixing ring.

[0009] Optionally, the fixing component includes a first mounting base, which mates with a connector. The first mounting base has an inner cavity and a sliding cavity, which communicates with the inner cavity. A suction cup is fixedly connected in the inner cavity, and the suction cup has a bending portion.

[0010] Optionally, a claw platform is fixedly connected inside the sliding cavity, a screw is threadedly connected to the first mounting base, a piston is fixedly connected to the screw, a felt ring is sleeved on the piston, and the piston is slidably connected to the sliding cavity.

[0011] Optionally, the connector is provided with a second mounting seat, which is correspondingly provided with the first mounting seat. The second mounting seat and the first mounting seat are fixed together by a connector. The second mounting seat cooperates with the connector. The first clamping plate and the second clamping plate are connected by screws. The second clamping plate and the second mounting seat are connected by screws.

[0012] Optionally, the connector includes a fixing block, which is fixedly connected to a first mounting base. A clearance groove is provided on the second mounting base, and the fixing block is inserted into the clearance groove. Sliding holes are provided on both sides of the fixing block, and a limit pin is slidably connected in the sliding hole. A lever is provided on the limit pin, and a spring is provided in the sliding hole. A limit hole is provided in the clearance groove, and the limit hole is correspondingly provided with the limit pin.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By setting up a fixing component, during use, the transmitter is placed on a table, with the suction cup tightly adhering to the table. By rotating the screw, the piston moves, generating a negative pressure effect in the inner cavity, causing the suction cup to firmly adhere to the table. At the same time, the bent part of the suction cup is bent, causing the connector's legs to contact the table. In this way, while the suction cup is firmly adhering to the table, the connector also applies downward pressure to the table. With this dual protection, the stability of the transmitter is significantly improved.

[0015] 2. By setting up a retaining ring and a fixing assembly, the pressure transmitter body can be further stabilized. Specifically, the retaining ring is first fixed to the transmitter body, and then the connector is screwed to the fixing assembly. This not only enhances the stability of the transmitter structure but also effectively prevents it from loosening or shifting during use, thereby improving the reliability and safety of the entire system.

[0016] 3. By interlocking the locking blocks on the first card plate with the slots on the second card plate, a tight and secure connection is achieved, enhancing the stability and durability of the structure. Simultaneously, the corresponding arrangement of the fixing slots and fixing rings further ensures the precise positioning and stable connection between the detection head and the connector, effectively preventing loosening or displacement. This not only improves the convenience and efficiency of assembly but also ensures the continuity and accuracy of data transmission, providing a strong guarantee for the stable operation of the equipment.

[0017] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure provided by this utility model;

[0019] Figure 2 This is an exploded view of the overall structure provided by this utility model;

[0020] Figure 3 This is a schematic diagram of the first card plate provided by this utility model;

[0021] Figure 4 This is a schematic diagram of the connector provided by this utility model;

[0022] Figure 5 This is a schematic diagram of the first mounting base provided by this utility model;

[0023] Figure 6 This is a schematic diagram of the connector provided by this utility model.

[0024] In the diagram: 1. Transmitter body; 11. Detector head; 12. Fixing ring; 2. Connector; 21. Input port; 22. Output port; 23. Support leg; 3. Limiting assembly; 31. First clamping plate; 32. Second clamping plate; 33. Clamping block; 34. Clamping slot; 35. Fixing slot; 4. Fixing assembly; 41. First mounting base; 42. Inner cavity; 43. Sliding cavity; 44. Suction cup; 45. Screw; 46. Piston; 47. Felt ring; 48. Claw platform; 49. Second mounting base; 5. Connector; 51. Fixing block; 52. Clearance groove; 53. Sliding hole; 54. Limiting pin; 55. Toggle block; 56. Spring; 57. Limiting hole. Detailed Implementation

[0025] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0026] like Figures 1 to 6 As shown in the figure, the present invention provides a large-range, high-precision intelligent differential pressure transmitter, including a transmitter body 1, a detection head 11 at the lower end of the transmitter body 1, a connector 2 inserted into the transmitter body 1, a support leg 23 formed at the lower end of the connector 2, a limit component 3 on the transmitter body 1, a fixing component 4 on the connector 2, the limit component 3 and the fixing component 4 being fixed together by screws, the number of fixing components 4 being two sets, and a connecting piece 5 being provided between the two sets of fixing components 4.

[0027] Furthermore, by setting the detection head 11 at the lower end, pressure changes can be accurately sensed; the design of the connector 2 and its support legs 23 not only enhances structural stability but also facilitates secure connection with various mounting surfaces. The combination of the limiting component 3 and the fixing component 4, secured with screws, ensures the transmitter's accurate positioning and stability during installation. The dual fixing components 4 and connectors 5 further enhance the overall structural stability and reliability, making it suitable for a wider range of more complex industrial measurement environments.

[0028] Specifically, a fixing ring 12 is provided on the detection head 11. The detection head 11 is inserted into the connector 2, and the fixing ring 12 is in contact with the connector 2. One end of the connector 2 is provided with an input port 21, and the other end of the connector 2 is provided with an output port 22.

[0029] Furthermore, firstly, the contact between the retaining ring 12 and the connector 2 ensures a stable connection between the detection head 11 and the connector 2, thereby improving the reliability and accuracy of data transmission. Secondly, the plug-in connection between the detection head 11 and the connector 2 facilitates quick installation and disassembly, improving work efficiency and ease of operation. Simultaneously, the connector 2 has an input port 21 on one end and an output port 22 on the other, making signal transmission clearer and easier to maintain and manage. In addition, this design has a certain degree of versatility, adapting to different specifications and models of detection heads 11, thus improving the flexibility and applicability of the equipment.

[0030] Specifically, the limiting component 3 includes a first card plate 31 and a second card plate 32. A card block 33 is fixedly connected to the first card plate 31, and a card slot 34 is provided on the second card plate 32. The card block 33 is correspondingly set with the card slot 34 and the card block 33 is inserted into the card slot 34. A fixing groove 35 is provided on the second card plate 32 of the first card plate 31 and the fixing groove 35 is correspondingly set with the fixing ring 12.

[0031] Furthermore, the insertion of the locking block 33 on the first locking plate 31 into the locking slot 34 on the second locking plate 32 achieves a tight and secure connection, enhancing the stability and durability of the structure. Simultaneously, the corresponding arrangement of the fixing slot 35 and the fixing ring 12 further ensures the precise positioning and stable connection between the detection head 11 and the connector 2, effectively preventing loosening or displacement. This not only improves the convenience and efficiency of assembly but also ensures the continuity and accuracy of data transmission, providing a strong guarantee for the stable operation of the equipment.

[0032] Specifically, the fixing component 4 includes a first mounting base 41, which cooperates with the connector 2. An inner cavity 42 is formed inside the first mounting base 41, and a sliding cavity 43 is formed inside the first mounting base 41. The sliding cavity 43 communicates with the inner cavity 42. A suction cup 44 is fixedly connected in the inner cavity 42. A bending part is provided on the suction cup 44. A claw platform 48 is fixedly connected in the sliding cavity 43. A screw 45 is threadedly connected to the first mounting base 41. A piston 46 is fixedly connected to the screw 45. A felt ring 47 is sleeved on the piston 46. The piston 46 is slidably connected to the sliding cavity 43.

[0033] Furthermore, the cooperation between the first mounting base 41 and the connector 2, as well as the arrangement of the suction cup 44 in the inner cavity 42, enhances the reliability of the connection. At the same time, the combination of the sliding cavity 43 and the claw stage 48, along with the combined action of the screw 45, piston 46, and felt ring 47, simplifies the installation process, improves work efficiency, and ensures a secure connection of the connector 2 under various working conditions, providing a strong guarantee for the normal operation of the equipment.

[0034] Furthermore, the claw platform 48 is used to limit the progress of the screw 45 and piston 46, preventing the screw 45 from outputting too much, and the felt ring 47 on the piston 46 can effectively prevent external impurities from entering the slide cavity 43 and causing damage to the piston 46. In addition, the felt ring 47 has a good cleaning effect, keeping the inner wall of the slide cavity 43 clean at all times and maintaining the sealing effect of the piston 46.

[0035] Specifically, the connector 2 is provided with a second mounting base 49, which is correspondingly provided with the first mounting base 41. The second mounting base 49 and the first mounting base 41 are fixed together by a connector 5. The second mounting base 49 cooperates with the connector 2. The first clamping plate 31 and the second clamping plate 32 are connected by screws. The second clamping plate 32 and the second mounting base 49 are connected by screws.

[0036] Furthermore, the corresponding arrangement of the second mounting base 49 and the first mounting base 41, along with the fixing of the connector 5, achieves a robust connection between the connector 2 and the fixing assembly 4, enhancing overall stability and structural strength. Simultaneously, the first clamping plate 31 and the second clamping plate 32, as well as the second clamping plate 32 and the second mounting base 49, are all connected by screws. This connection method is not only simple and reliable but also facilitates disassembly and maintenance, improving the flexibility and maintainability of the equipment.

[0037] Specifically, the connector 5 includes a fixing block 51, which is fixedly connected to the first mounting base 41. The second mounting base 49 has a clearance groove 52, and the fixing block 51 is inserted into the clearance groove 52. The fixing block 51 has sliding holes 53 on both sides, and a limit pin 54 is slidably connected in the sliding hole 53. A toggle block 55 is provided on the limit pin 54, and a spring 56 is provided in the sliding hole 53. A limit hole 57 is provided in the clearance groove 52, and the limit hole 57 is correspondingly provided with the limit pin 54.

[0038] Furthermore, the fixed connection between the fixing block 51 and the first mounting base 41, and the opening of the clearance groove 52, achieve precise positioning and stable connection between the connector 5 and the mounting base. Simultaneously, the sliding connection of the limiting pin 54 within the sliding hole 53, and the setting of the spring 56, allow the limiting pin 54 to automatically engage with the limiting hole 57, effectively preventing the connector 5 from loosening or falling off. The setting of the lever 55 facilitates manual operation of the limiting pin 54 by the user, improving the convenience and flexibility of installation.

[0039] Working principle: The transmitter is placed firmly on a table. At this time, the suction cup 44 is tightly attached to the table. By rotating the screw 45, the piston 46 is moved, generating a negative pressure effect in the inner cavity 42, which makes the suction cup 44 firmly adhere to the table. At the same time, the bent part of the suction cup 44 is bent, causing the support leg 23 of the connector 2 to contact the table. In this way, while the suction cup 44 is firmly attached to the table, the connector 2 also applies downward pressure to the table. With this double protection, the stability of the transmitter is significantly improved.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A large-range, high-precision intelligent differential pressure transmitter, comprising a transmitter body (1), characterized in that: The transmitter body (1) is provided with a detection head (11) at its lower end. A connector (2) is inserted into the transmitter body (1). A support foot (23) is formed at the lower end of the connector (2). A limit component (3) is provided on the transmitter body (1). A fixing component (4) is provided on the connector (2). The limit component (3) and the fixing component (4) are fixed together by screws. There are two sets of fixing components (4). A connector (5) is provided between the two sets of fixing components (4).

2. The large-range, high-precision intelligent differential pressure transmitter according to claim 1, characterized in that: The detection head (11) is provided with a fixing ring (12), the detection head (11) is inserted into the connector (2), the fixing ring (12) is in contact with the connector (2), one end of the connector (2) is provided with an input port (21), and the other end of the connector (2) is provided with an output port (22).

3. A large-range, high-precision intelligent differential pressure transmitter according to claim 1, characterized in that: The limiting component (3) includes a first card plate (31) and a second card plate (32). A card block (33) is fixedly connected to the first card plate (31), and a card slot (34) is provided on the second card plate (32). The card block (33) and the card slot (34) are correspondingly arranged, and the card block (33) and the card slot (34) are inserted into each other.

4. A large-range, high-precision intelligent differential pressure transmitter according to claim 3, characterized in that: The first card plate (31) has a fixing groove (35) on its second card plate (32), and the fixing groove (35) is correspondingly provided with the fixing ring (12).

5. A large-range, high-precision intelligent differential pressure transmitter according to claim 1, characterized in that: The fixing component (4) includes a first mounting base (41), which cooperates with the connector (2). An inner cavity (42) is formed inside the first mounting base (41), and a sliding cavity (43) is formed inside the first mounting base (41). The sliding cavity (43) communicates with the inner cavity (42). A suction cup (44) is fixedly connected in the inner cavity (42), and a bending part is provided on the suction cup (44).

6. A large-range, high-precision intelligent differential pressure transmitter according to claim 5, characterized in that: A claw platform (48) is fixedly connected inside the sliding cavity (43). A screw (45) is threadedly connected to the first mounting base (41). A piston (46) is fixedly connected to the screw (45). A felt ring (47) is sleeved on the piston (46). The piston (46) is slidably connected to the sliding cavity (43).

7. A large-range, high-precision intelligent differential pressure transmitter according to claim 3, characterized in that: The connector (2) is provided with a second mounting seat (49), which is correspondingly provided with the first mounting seat (41). The second mounting seat (49) and the first mounting seat (41) are fixed together by a connector (5). The second mounting seat (49) cooperates with the connector (2). The first clamping plate (31) and the second clamping plate (32) are connected by screws. The second clamping plate (32) and the second mounting seat (49) are connected by screws.

8. A large-range, high-precision intelligent differential pressure transmitter according to claim 7, characterized in that: The connector (5) includes a fixing block (51), which is fixedly connected to the first mounting base (41). The second mounting base (49) has a clearance groove (52) and the fixing block (51) is inserted into the clearance groove (52). The fixing block (51) has sliding holes (53) on both sides. A limit pin (54) is slidably connected in the sliding hole (53). A lever (55) is provided on the limit pin (54). A spring (56) is provided in the sliding hole (53). A limit hole (57) is provided in the clearance groove (52) and the limit hole (57) is correspondingly provided with the limit pin (54).

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