Pressure transmitter

Abstract

The utility model relates to the technical field of pressure transmitters, and discloses a pressure transmitter, which comprises a transmitter main body, a connecting pipe is arranged at the bottom of the transmitter main body, a limit clamping ring is arranged on the connecting pipe, two baffles are arranged at the bottom end of an L-shaped connecting rod of the limit clamping ring, and the L-shaped connecting rod of the limit clamping ring is connected with the two baffles. An adjusting switching plate rotationally connected with the L-shaped connecting rod is arranged between the two baffles, a plurality of threaded connecting pipe openings are formed in the adjusting switching plate, a plurality of positioning columns are arranged on the supporting plate at the tops of the threaded connecting pipe openings, and positioning holes slidably connected with the positioning columns are formed in the bottom end of the connecting pipe; when pressure measuring ports with different caliber specifications are connected, the switching plate can be rotated and adjusted to switch a plurality of threaded connection pipe ports so as to adapt to the corresponding pressure measuring ports, and the application range of the pressure transmitter is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure transmitters, and specifically relates to a pressure transmitter. Background Technique

[0002] A pressure transmitter is a device that converts pressure into a pneumatic signal or an electric signal for control and remote transmission. It can convert physical pressure parameters such as gas and liquid sensed by a pressure measuring element sensor into a standard electric signal to supply secondary instruments such as indicating alarm instruments, recorders, and regulators for measurement, indication, and process adjustment.

[0003] Some pressure transmitters on the market currently: For example, the utility model patent with the authorization announcement number CN220871971U discloses an explosion-proof pressure transmitter. The transmitter is provided with a top cover on the top of the transmitter main body to facilitate the maintenance of the transmitter main body, and a display panel provided on the front of the transmitter main body can display inspection data. A threaded head is connected to the bottom of the connecting pipe, and a fixing nut is provided on the threaded head to facilitate the connection of the connecting pipe to an external pipe. A second outer cover and a first outer cover are also sleeved outside a rubber sleeve provided on the wiring terminal, and at the same time, a pressing strip is provided inside the first outer cover and the second outer cover to facilitate the pressing and fixing of the rubber sleeve. However, since the threaded joint of this pressure transmitter and the pressure transmitter housing are of a fixed structure and cannot be switched and adjusted as needed, when connecting to pressure measuring ports with different caliber specifications in actual applications, it is necessary to replace the pressure transmitter with a matching caliber to install, which results in a reduced applicable range of the pressure transmitter.

[0004] Therefore, we propose a pressure transmitter to solve the problems raised above. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problems of some current pressure transmitters. The threaded joint of the pressure transmitter and the pressure transmitter housing are of a fixed structure and cannot be switched and adjusted as needed. When connecting to pressure measuring ports with different caliber specifications in actual applications, it is necessary to replace the pressure transmitter with a matching caliber to install, which results in a reduced applicable range of the pressure transmitter.

[0006] To achieve the above object, the utility model adopts the following technical solutions: A pressure transmitter, including a transmitter main body, a connecting pipe is arranged at the bottom of the transmitter main body, a limit clamping ring is arranged on the connecting pipe, an L-shaped connecting rod is arranged on the limit clamping ring, two baffles are arranged at the bottom end of the L-shaped connecting rod, an adjusting and switching plate rotatably connected to the L-shaped connecting rod is arranged between the two baffles, a plurality of threaded connection pipe orifices are arranged on the adjusting and switching plate, and sleeve holes adapted to the threaded connection pipe orifices are formed in the adjusting and switching plate. A support plate is arranged at a position near the top of the surface of the threaded connection pipe orifice, a plurality of positioning columns are arranged on the support plate, positioning holes slidably connected to the positioning columns are formed at the bottom end of the connecting pipe, and a plurality of first rotating pinch plates are arranged on the outer side surface of the adjusting and switching plate.

[0007] Further, a sealing rubber gasket is arranged at the bottom end of the connecting pipe.

[0008] Further, a protective cover is arranged on the L-shaped connecting rod, the adjusting and switching plate is located inside the protective cover, a fixing plate is arranged at a position near the bottom of the surface of the connecting pipe, and the fixing plate is connected to the protective cover.

[0009] Further, the caliber specifications of each threaded connection pipe orifice are different.

[0010] Further, the limit clamping ring includes a structural ring, a connecting ring is connected to the bottom of the structural ring, a lower pressing plate is arranged at the bottom end of the connecting ring, a plurality of uniformly distributed spring cavities are formed around the inside of the structural ring, a limiting plate and a compression spring are arranged in the spring cavity, a clamping block is connected to the side surface of the limiting plate, and a pulling wire is connected to the other side surface of the limiting plate. An annular groove is formed in the structural ring, a wire passing hole is formed between the spring cavity and the annular groove, an annular plate is arranged in the annular groove, a rotating ring is connected to the outer ring surface of the annular plate, and the inner ring surface of the annular plate is connected to the pulling wire. A plurality of second rotating pinch plates are arranged on the outer side surface of the rotating ring, and a clamping groove adapted to the clamping block is formed on the connecting pipe.

[0011] Further, a mechanism spring is arranged between the lower surface of the lower pressing plate and the fixing plate.

[0012] Further, a sealing cover is threadedly connected to the upper surface of the protective cover.

[0013] Advantages of the utility model: By providing a limit clamping ring on the connecting pipe, two baffles are provided at the bottom end of the L-shaped connecting rod of the limit clamping ring, an adjustment and switching plate rotatably connected to the L-shaped connecting rod is provided between the two baffles, a plurality of threaded connection nozzles are provided on the adjustment and switching plate, a plurality of positioning posts are provided on the support plate at the top of the threaded connection nozzle, and a positioning hole slidably connected to the positioning post is provided at the bottom end of the connecting pipe. When connecting pressure measuring ports with different caliber specifications, the adjustment and switching plate can be rotated to switch a plurality of threaded connection nozzles to adapt to the corresponding pressure measuring port, improving the applicable range of the pressure transmitter. Brief Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the pressure transmitter of the utility model;

[0015] Figure 2 is a schematic side view structural diagram of the pressure transmitter of the utility model;

[0016] Figure 3 is a partial structural diagram of the pressure transmitter of the utility model.

[0017] Names corresponding to each mark in the figure:

[0018] 1, transmitter main body; 2, connecting pipe; 3, limit clamping ring; 4, L-shaped connecting rod; 5, baffle; 6, adjustment and switching plate; 7, threaded connection nozzle; 8, support plate; 9, positioning post; 10, sealing rubber washer; 11, protective cover; 12, fixing plate; 13, mechanism spring; 14, cover. Specific Embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present utility model.

[0020] Embodiments of the present utility model:

[0021] Embodiment 1

[0022] As Figures 1 - 3As shown, the utility model provides a pressure transmitter, including a transmitter body 1, a connecting pipe 2 is arranged at the bottom of the transmitter body 1, a limit clamping ring 3 is arranged on the connecting pipe 2, an L-shaped connecting rod 4 is arranged on the limit clamping ring 3, two baffles 5 are arranged at the bottom end of the L-shaped connecting rod 4, an adjusting switch plate 6 rotatably connected to the L-shaped connecting rod 4 is arranged between the two baffles 5, a plurality of threaded connection pipe openings 7 are arranged on the adjusting switch plate 6, the caliber specifications of each threaded connection pipe opening 7 are different, and a sleeve hole matching the threaded connection pipe opening 7 is opened on the adjusting switch plate 6, a support plate 8 is arranged near the top of the surface of the threaded connection pipe opening 7, a plurality of positioning columns 9 are arranged on the support plate 8, a positioning hole slidably connected to the positioning column 9 is opened at the bottom end of the connecting pipe 2, a plurality of first rotating pinching plates are arranged on the outer side of the adjusting switch plate 6, the limit clamping ring 3 includes a structural ring, a connecting ring is connected to the bottom of the structural ring, and a lower pressure plate is arranged at the bottom of the connecting ring The structure ring is surrounded by a plurality of evenly distributed spring cavities, a limit plate and a compression spring are arranged in the spring cavity, a block is connected to the side of the limit plate, a slot matching the block is arranged on the connecting pipe 2, and a pulling wire is connected to the other side of the limit plate, an annular groove is arranged in the structure ring, a wire hole is arranged between the spring cavity and the annular groove, and an annular plate is arranged in the annular groove, a rotating ring is connected to the outer ring surface of the annular plate, and the inner ring surface of the annular plate is connected to the pulling wire, and a plurality of second rotating pinching plates are arranged on the outer side of the rotating ring. When switching, it is only necessary to rotate the rotating ring, pull the block into the spring cavity through the pulling wire, release the fixation, and then push the limit clamping ring 3 downward to make the positioning column 9 come out of the positioning hole of the connecting pipe 2, and then rotate the adjustment switching plate 6 to switch the new threaded connecting pipe mouth 7, so that the positioning column 9 is inserted into the positioning hole for fixing, and the block is reset under the action of the compression spring and inserted into the slot for fixing, and the switching installation is completed.

[0023] Embodiment 2

[0024] like Figures 1 - 3 As shown, on the basis of the first embodiment of the utility model: a sealing rubber gasket 10 is provided at the bottom end of the connecting pipe 2, through such arrangement, the sealing is improved, a protective cover 11 is provided on the L-shaped connecting rod 4, the adjusting switching plate 6 is located in the protective cover 11, and a fixing plate 12 is provided on the surface of the connecting pipe 2 near the bottom, and the fixing plate 12 is connected to the protective cover 11, through such arrangement, the threaded connection pipe mouth 7 can be protected, and a sealing cover 14 is threadedly connected to the upper surface of the protective cover 11, through such arrangement, the sealing cover 14 can be opened as needed to remove and replace the threaded connection pipe mouth 7 on the adjusting switching plate 6, and a mechanism spring 13 is provided between the lower surface of the lower pressure plate and the fixing plate 12, through such arrangement, after switching to the new threaded connection pipe mouth 7, you only need to loosen the limit clamping ring 3, and it will automatically move up and reset under the action of the mechanism spring 13.

Claims

1. A pressure transmitter, comprising a transmitter body (1), wherein a connecting pipe (2) is provided at the bottom of the transmitter body (1), characterized in that: The connecting tube (2) is provided with a limit clamping ring (3), and an L-shaped connecting rod (4) is provided on the limit clamping ring (3). The bottom end of the L-shaped connecting rod (4) is provided with two baffles (5), and an adjusting switch plate (6) rotatably connected to the L-shaped connecting rod (4) is provided between the two baffles (5). The adjusting switch plate (6) is provided with a plurality of threaded connection pipe openings (7), and the adjusting switch plate (6) is provided with sleeve holes matched with the threaded connection pipe openings (7). A support plate (8) is provided at a position near the top of the surface of the threaded connection pipe opening (7), and a plurality of positioning columns (9) are provided on the support plate (8). The bottom end of the connecting tube (2) is provided with a positioning hole slidably connected to the positioning column (9), and a plurality of first rotating pinching plates are provided on the outer side surface of the adjusting switch plate (6).

2. A pressure transmitter according to claim 1, characterized in that: A sealing rubber gasket (10) is provided at the bottom end of the connecting pipe (2).

3. A pressure transmitter according to claim 1, characterized in that: A protective cover (11) is provided on the L-shaped connecting rod (4), the regulating switch plate (6) is located inside the protective cover (11), and a fixing plate (12) is provided on the surface of the connecting pipe (2) near the bottom, and the fixing plate (12) is connected to the protective cover (11).

4. A pressure transmitter according to claim 1, characterized in that: The diameter specifications of each threaded connection pipe opening (7) are different.

5. A pressure transmitter according to claim 3, characterized in that: The limiting clamping ring (3) comprises a structural ring, a connecting ring is connected to the bottom of the structural ring, a lower pressure plate is arranged at the bottom of the connecting ring, a plurality of evenly distributed spring cavities are arranged around the structural ring, a limiting plate and a compression spring are arranged in the spring cavity, a clamping block is connected to the side of the limiting plate, and a pulling wire is connected to the other side of the limiting plate, an annular groove is arranged in the structural ring, a wire passing hole is arranged between the spring cavity and the annular groove, and an annular plate is arranged in the annular groove, a rotating ring is connected to the outer ring surface of the annular plate, and the inner ring surface of the annular plate is connected to the pulling wire, a plurality of second rotating pinching plates are arranged on the outer side surface of the rotating ring, and a clamping groove adapted to the clamping block is arranged on the connecting tube (2).

6. A pressure transmitter according to claim 5, characterized in that: A mechanism spring (13) is arranged between the lower surface of the lower pressing plate and the fixing plate (12).

7. A pressure transmitter according to claim 3, characterized in that: A sealing cover (14) is threadedly connected to the upper surface of the protective cover (11).

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