Pressure transmitter

Abstract

The utility model discloses a pressure transmitter, which comprises a pressure transmitter body, a connecting piece is arranged on the pressure transmitter body, a mounting cavity is arranged in the connecting piece, the cross section of the mounting cavity is L-shaped, a pipeline is arranged in the mounting cavity, a sealing mechanism is arranged between the connecting piece and the pipeline, and the connecting piece is connected with the pipeline. The pressure transmitter comprises a pressure transmitter body, a connecting piece, a mounting cavity, a pipeline, a sealing mechanism and a fixing mechanism, a fixing mechanism convenient to disassemble is arranged between the connecting piece and the pipeline, the inner diameter of the pipeline is consistent with that of the connecting piece, and the pressure transmitter body, the connecting piece, the mounting cavity, the pipeline, the sealing mechanism and the fixing mechanism are arranged. And then the pipeline is installed in the installation cavity in the connecting piece through the fixing mechanism, rapid disassembly and assembly of the pipeline and the connecting piece are achieved, at the moment, the sealing mechanism can seal the joint of the pipeline and the connecting piece, and the situation of leakage is avoided.

Description

Technical Field

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

[0002] A pressure transmitter is a device that converts pressure into pneumatic or electric signals for control and remote transmission. It can convert physical pressure parameters such as gas and liquid sensed by the pressure measuring element sensor into standard electrical signals to supply secondary instruments such as indicator alarms, recorders, regulators, etc. for measurement, indication and process regulation.

[0003] The existing Chinese utility model patent with announcement number: CN220625593U discloses a pressure transmitter assembly, including a pressure transmitter body, a connector installed at the end of the pressure transmitter body, an anti-blocking mechanism installed inside the connector, a pipeline connected to the end of the connector, and an installation mechanism installed outside the connector. The utility model provides a pressure transmitter assembly that can quickly connect the connector to the pipeline through the installation mechanism.

[0004] Although this patent can achieve the effect of convenient disassembly and assembly of pipes and connectors when in use, no sealing structure is set at the connection between the pipes and connectors. The pipes and connectors are positioned only by the ball bearings in the through grooves. Leakage is likely to occur at the connection between the pipes and connectors, resulting in errors in the measurement results. Utility Model Content

[0005] The utility model aims to provide a pressure transmitter for existing devices to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a pressure transmitter, comprising a pressure transmitter body, a connecting piece is arranged on the pressure transmitter body, a mounting cavity is arranged in the connecting piece, the mounting cavity has an L-shaped cross section, a pipeline is arranged in the mounting cavity, a sealing mechanism is arranged between the connecting piece and the pipeline, a fixing mechanism for easy disassembly is arranged between the connecting piece and the pipeline, and the inner diameters of the pipeline and the connecting piece are consistent;

[0007] The sealing mechanism includes a first sealing ring, an extrusion groove, a second sealing ring, a fixed groove and a third sealing ring, wherein the first sealing ring is arranged at the top of the installation cavity, the extrusion groove is arranged on the first sealing ring, the second sealing ring is arranged at one end of the pipeline, the second sealing ring is located inside the extrusion groove, the fixed groove is arranged on the side wall of the installation cavity, the third sealing ring is arranged inside the fixed groove, and one end of the third sealing ring extends to the outside of the fixed groove.

[0008] The utility model further describes that the fixing mechanism includes a rotating sleeve, a limiting ring, a limiting groove, an external thread and an internal thread, the rotating sleeve is arranged on the outside of the connecting piece and the pipeline, the limiting ring is arranged on the pipeline, the limiting groove is arranged on the inner wall of the rotating sleeve, the limiting ring is located inside the limiting groove, the external thread is arranged on the connecting piece, the internal thread is arranged on the inner wall of the rotating sleeve, and the external thread and the internal thread are arranged in coordination.

[0009] The utility model further describes that the limiting ring is provided with a rotation groove, the number of the rotation grooves is several and they are arranged in a circle, and a rotation ball is arranged inside the rotation groove.

[0010] The utility model further illustrates that a first fixing ear is arranged on the outer side of the rotating sleeve, a second fixing ear is arranged on the outer side of the connecting piece, a connecting plate is rotatably arranged in the first fixing ear, and the other end of the connecting plate is arranged in the second fixing ear.

[0011] The utility model further illustrates that a clamping groove is arranged on the limiting ring, a clamping ring is arranged on the limiting groove, and the clamping ring and the clamping groove are arranged correspondingly.

[0012] The utility model further illustrates that the rotating sleeve is provided with anti-skid grooves, and the number of the anti-skid grooves is several and evenly arranged.

[0013] Compared with the prior art, the beneficial effects achieved by the utility model are: the utility model,

[0014] (1) By setting a pressure transmitter body, a connector, an installation cavity, a pipeline, a sealing mechanism and a fixing mechanism, when in use, the connector is first fixed on the pressure transmitter body, and then the pipeline is installed in the installation cavity on the connector through the fixing mechanism, so that the pipeline and the connector can be quickly disassembled and assembled. At this time, the sealing mechanism can seal the interface between the pipeline and the connector to avoid leakage. The sealing mechanism includes a first sealing ring, an extrusion groove, a second sealing ring, a fixing groove and a third sealing ring. First, the fixing groove can install and fix the third sealing ring. When the pipeline enters the installation cavity, the pipeline will squeeze the third sealing ring. Since one end of the third sealing ring extends to the outside of the fixing groove, the pipeline squeezes the third sealing ring to deform, so that the third sealing ring fills the side wall of the pipeline and the installation cavity, thereby improving the sealing effect. After the pipeline contacts the bottom of the installation cavity, the second sealing ring enters the extrusion groove in the first sealing ring and squeezes the second sealing ring through the extrusion groove, so that the second sealing ring is deformed, thereby further improving the sealing effect between the pipeline and the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the rotating sleeve, the external thread and the internal thread provided in the embodiment of the utility model;

[0018] Figure 3 It is a structural schematic diagram of a fixing groove, a third sealing ring and a clamping groove provided in an embodiment of the utility model;

[0019] Figure 4 It is a structural schematic diagram of a first fixing ear, a second fixing ear and a connecting plate provided in an embodiment of the utility model;

[0020] Figure 5 The utility model embodiment provides Figure 3 Enlarged view of point A in the middle.

[0021] In the figure: 1. Pressure transmitter body; 2. Connector; 3. Mounting cavity; 4. Pipe; 5. Sealing mechanism; 6. Fixing mechanism; 7. Rotating groove; 8. Rotating ball; 9. First fixing ear; 10. Second fixing ear; 11. Connecting plate; 12. Slot; 13. Snap ring; 14. Anti-slip groove; 501. First sealing ring; 502. Extrusion groove; 503. Second sealing ring; 504. Fixing groove; 505. Third sealing ring; 601. Rotating sleeve; 602. Limiting ring; 603. Limiting groove; 604. External thread; 605. Internal thread. DETAILED DESCRIPTION

[0022] The following is a further non-limiting detailed description of the technical solution of the utility model in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 The utility model provides a technical solution: a pressure transmitter, including a pressure transmitter body 1, a connecting piece 2 is arranged on the pressure transmitter body 1, a mounting cavity 3 is arranged in the connecting piece 2, the cross section of the mounting cavity 3 is L-shaped, a pipeline 4 is arranged in the mounting cavity 3, a sealing mechanism 5 is arranged between the connecting piece 2 and the pipeline 4, a fixing mechanism 6 for easy disassembly is arranged between the connecting piece 2 and the pipeline 4, and the inner diameters of the pipeline 4 and the connecting piece 2 are consistent;

[0024] The sealing mechanism 5 includes a first sealing ring 501, an extrusion groove 502, a second sealing ring 503, a fixed groove 504 and a third sealing ring 505. The first sealing ring 501 is arranged at the top of the installation cavity 3, the extrusion groove 502 is arranged on the first sealing ring 501, the second sealing ring 503 is arranged at one end of the pipe 4, the second sealing ring 503 is located inside the extrusion groove 502, the fixed groove 504 is arranged on the side wall of the installation cavity 3, the third sealing ring 505 is arranged inside the fixed groove 504, and one end of the third sealing ring 505 extends to the outside of the fixed groove 504.

[0025] The above scheme is adopted: by setting the pressure transmitter body 1, the connecting piece 2, the installation cavity 3, the pipeline 4, the sealing mechanism 5 and the fixing mechanism 6, when in use, the connecting piece 2 is first fixed on the pressure transmitter body 1, and then the pipeline 4 is installed in the installation cavity 3 on the connecting piece 2 through the fixing mechanism 6, so as to realize the rapid disassembly and assembly of the pipeline 4 and the connecting piece 2. At this time, the sealing mechanism 5 can seal the interface between the pipeline 4 and the connecting piece 2 to avoid leakage, wherein the sealing mechanism 5 includes a first sealing ring 501, an extrusion groove 502, a second sealing ring 503, a fixing groove 504 and a third sealing ring 505, firstly, the fixing groove 504 can seal the third sealing ring 50 5 is installed and fixed. When the pipe 4 enters the installation cavity 3, the pipe 4 squeezes the third sealing ring 505. Since one end of the third sealing ring 505 extends to the outside of the fixing groove 504, the pipe 4 squeezes the third sealing ring 505 to deform, so that the third sealing ring 505 fills the side wall of the pipe 4 and the installation cavity 3, thereby improving the sealing effect. After the pipe 4 contacts the bottom of the installation cavity 3, the second sealing ring 503 enters the extrusion groove 502 in the first sealing ring 501, and squeezes the second sealing ring 503 through the extrusion groove 502, so that the second sealing ring 503 is deformed, thereby further improving the sealing effect between the pipe 4 and the connector 2.

[0026] refer to Figure 3 The fixing mechanism 6 includes a rotating sleeve 601, a limiting ring 602, a limiting groove 603, an external thread 604 and an internal thread 605. The rotating sleeve 601 is arranged on the outside of the connecting member 2 and the pipeline 4, the limiting ring 602 is arranged on the pipeline 4, the limiting groove 603 is arranged on the inner wall of the rotating sleeve 601, the limiting ring 602 is located inside the limiting groove 603, the external thread 604 is arranged on the connecting member 2, the internal thread 605 is arranged on the inner wall of the rotating sleeve 601, and the external thread 604 and the internal thread 605 are arranged in coordination.

[0027] The above scheme is adopted: by setting a rotating sleeve 601, a limiting ring 602, a limiting groove 603, an external thread 604 and an internal thread 605, when in use, first the limiting ring 602 on the pipe 4 is located in the limiting groove 603 of the rotating sleeve 601, so that the rotating sleeve 601 and the limiting ring 602 are integrated, and the rotating sleeve 601 can be rotated independently. When the pipe 4 needs to be installed, it is only necessary to rotate the rotating sleeve 601. Since the rotating sleeve 601 and the connecting member 2 are connected by the external thread 604 and the internal thread 605, the pipe 4 can be fixed in the connecting member 2, avoiding the need for the traditional pressure transmitter body 1 to be rotated as a whole for disassembly, making disassembly more convenient.

[0028] refer to Figure 3 The limiting ring 602 is provided with a rotation groove 7 , the number of the rotation grooves 7 is several and they are arranged in a circle, and a rotation ball 8 is arranged inside the rotation groove 7 .

[0029] The above scheme is adopted: by setting the rotating groove 7 and the rotating ball 8, when the limit ring 602 rotates in the limit groove 603, the rotating ball 8 can also rotate in the rotating groove 7, thereby reducing the friction between the limit ring 602 and the limit groove 603, so that the limit ring 602 can rotate more smoothly.

[0030] refer to Figure 4 A first fixing ear 9 is arranged on the outer side of the rotating sleeve 601 , a second fixing ear 10 is arranged on the outer side of the connecting member 2 , a connecting plate 11 is rotatably arranged in the first fixing ear 9 , and the other end of the connecting plate 11 is arranged in the second fixing ear 10 .

[0031] The above scheme is adopted: by setting the first fixing ear 9, the connecting plate 11 and the second fixing ear 10, when in use, the first fixing ear 9 is set on the rotating sleeve 601, the second fixing ear 10 is set on the connecting piece 2, and one end of the connecting plate 11 can be rotated in the first fixing ear 9, and the other end is fixed in the second fixing ear 10 by bolts, which can further improve the connection strength between the pipeline 4 and the connecting piece 2.

[0032] refer to Figure 3 A clamping groove 12 is provided on the limiting ring 602, and a clamping ring 13 is provided on the limiting groove 603, and the clamping ring 13 and the clamping groove 12 are provided correspondingly.

[0033] By adopting the above solution: by setting the slot 12 and the snap ring 13, when in use, the snap ring 13 is located in the slot 12, which can make the limiting ring 602 more stably installed in the limiting slot 603 and prevent the snap ring 13 from falling out of the slot 12.

[0034] refer to Figure 3 The rotating sleeve 601 is provided with anti-skid grooves 14, and the number of the anti-skid grooves 14 is several and evenly arranged.

[0035] The above scheme is adopted: by setting the anti-skid groove 14, when in use, first the anti-skid groove 14 is set on the rotating sleeve 601. When in use, the anti-skid groove 14 can increase the friction between the staff and the rotating sleeve 601, and can prevent the staff from slipping.

[0036] The working principle of this utility model:

[0037] When in use, first, the limiting ring 602 on the pipe 4 is located in the limiting groove 603 of the rotating sleeve 601, so that the rotating sleeve 601 is integrated with the limiting ring 602, and the rotating sleeve 601 can rotate independently. When the pipe 4 needs to be installed, it is only necessary to rotate the rotating sleeve 601. Since the rotating sleeve 601 and the connecting piece 2 are connected by the external thread 604 and the internal thread 605, the pipe 4 can be fixed in the connecting piece 2, avoiding the need for the traditional pressure transmitter body 1 to be rotated as a whole for disassembly, making disassembly more convenient. Then the fixing groove 504 can install and fix the third sealing ring 505. When the pipe 4 enters the installation cavity 3, the pipe 4 will squeeze the third sealing ring 505. Since one end of the third sealing ring 505 extends to the outside of the fixing groove 504, the pipe 4 squeezes the third sealing ring 505 to deform, so that the third sealing ring 505 fills the pipe 4 and the installation cavity. 3, improve the sealing effect, when the pipe 4 contacts the bottom of the installation cavity 3, the second sealing ring 503 enters the extrusion groove 502 in the first sealing ring 501, and squeezes the second sealing ring 503 through the extrusion groove 502, so that the second sealing ring 503 is deformed, further improving the sealing effect between the pipe 4 and the connecting member 2, when the limiting ring 602 rotates in the limiting groove 603, the rotating ball 8 can also rotate in the rotating groove 7, thereby reducing the friction between the limiting ring 602 and the limiting groove 603, so that the limiting ring 602 rotates more smoothly, and then the first fixing ear 9 is arranged on the rotating sleeve 601, the second fixing ear 10 is arranged on the connecting member 2, and one end of the connecting plate 11 can rotate in the first fixing ear 9, and the other end is fixed in the second fixing ear 10 by bolts, which can further improve the connection strength between the pipe 4 and the connecting member 2.

[0038] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0039] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit them. Although the utility model is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A pressure transmitter, comprising a pressure transmitter body (1), characterized in that: The pressure transmitter body (1) is provided with a connecting piece (2), a mounting cavity (3) is provided in the connecting piece (2), the mounting cavity (3) has an L-shaped cross section, a pipeline (4) is provided in the mounting cavity (3), a sealing mechanism (5) is provided between the connecting piece (2) and the pipeline (4), a fixing mechanism (6) for facilitating disassembly is provided between the connecting piece (2) and the pipeline (4), and the inner diameters of the pipeline (4) and the connecting piece (2) are consistent; The sealing mechanism (5) comprises a first sealing ring (501), an extrusion groove (502), a second sealing ring (503), a fixed groove (504) and a third sealing ring (505), wherein the first sealing ring (501) is arranged at the top of the installation cavity (3), the extrusion groove (502) is arranged on the first sealing ring (501), the second sealing ring (503) is arranged at one end of the pipeline (4), the second sealing ring (503) is located inside the extrusion groove (502), the fixed groove (504) is arranged on the side wall of the installation cavity (3), the third sealing ring (505) is arranged inside the fixed groove (504), and one end of the third sealing ring (505) extends to the outside of the fixed groove (504).

2. A pressure transmitter according to claim 1, characterized in that: The fixing mechanism (6) comprises a rotating sleeve (601), a limiting ring (602), a limiting groove (603), an external thread (604) and an internal thread (605); the rotating sleeve (601) is arranged on the outside of the connecting piece (2) and the pipe (4); the limiting ring (602) is arranged on the pipe (4); the limiting groove (603) is arranged on the inner wall of the rotating sleeve (601); the limiting ring (602) is located inside the limiting groove (603); the external thread (604) is arranged on the connecting piece (2); the internal thread (605) is arranged on the inner wall of the rotating sleeve (601); and the external thread (604) and the internal thread (605) are arranged in a coordinated manner.

3. A pressure transmitter according to claim 2, characterized in that: The limiting ring (602) is provided with a rotation groove (7), the rotation grooves (7) are multiple in number and arranged in a circle, and a rotation ball (8) is arranged inside the rotation groove (7).

4. A pressure transmitter according to claim 2, characterized in that: A first fixing ear (9) is arranged on the outer side of the rotating sleeve (601), a second fixing ear (10) is arranged on the outer side of the connecting member (2), a connecting plate (11) is rotatably arranged in the first fixing ear (9), and the other end of the connecting plate (11) is arranged in the second fixing ear (10).

5. A pressure transmitter according to claim 2, characterized in that: The limiting ring (602) is provided with a clamping groove (12), the limiting groove (603) is provided with a clamping ring (13), and the clamping ring (13) and the clamping groove (12) are arranged correspondingly.

6. A pressure transmitter according to claim 2, characterized in that: The rotating sleeve (601) is provided with anti-skid grooves (14), and the number of the anti-skid grooves (14) is several and evenly arranged.

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