CN216349322U

CN216349322U - VCR interface type pressure transmitter

Info

Publication number: CN216349322U
Application number: CN202122882900.1U
Authority: CN
Inventors: 陶凯
Original assignee: Suzhou Yuchengkai Automation Equipment Co ltd
Current assignee: Suzhou Yuchengkai Automation Equipment Co ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-04-19
Anticipated expiration: 2031-11-23

Abstract

The utility model relates to a VCR interface type pressure transmitter, which comprises an L-shaped pipe, wherein the top end of the L-shaped pipe is provided with a pressure transmitter body, a VCR interface is arranged between the pressure transmitter body and the L-shaped pipe, the VCR interface comprises a first connecting pipe welded with the top end of the pressure transmitter body, an installing head is arranged on the L-shaped pipe, a limiting convex ring is arranged on the installing head, a connecting convex ring is arranged on the first connecting pipe, the connecting convex ring corresponds to the limiting convex ring, the top end of the connecting convex ring is provided with a sealing gasket, the top end of the sealing gasket is provided with a second connecting pipe, a pressing head is sleeved on the outer side of the second connecting pipe, a connecting section is arranged on the pressing head, an external thread is arranged on the connecting section, the installing head is provided with an internal thread, the internal thread is in threaded fit with the external thread, and the sealing effect is enhanced, and the cleanliness factor is higher, and this structure is convenient for install and is dismantled, and can relapse the dismouting, need change new seal gasket when dismantling the back and reinstalling.

Description

VCR interface type pressure transmitter

Technical Field

The utility model relates to the technical field of pressure transmitters, in particular to a VCR interface type pressure transmitter.

Background

The pressure transmitter is a device for converting pressure into pneumatic signal or electric signal to control and remotely transmit, and can convert the physical pressure parameters of gas, liquid and the like sensed by a load cell sensor into standard electric signals to be supplied to secondary instruments such as an indication alarm instrument, a recorder, a regulator and the like for measurement, indication and process regulation, and the chinese patent publication No. CN205958176U provides a pressure transmitter, which comprises: the pressure transmitter comprises a pressure transmitter body and an L-shaped connecting pipe, wherein the L-shaped connecting pipe comprises a horizontal pipe which is in the same direction as the axis of the pipeline and a vertical pipe which is used for installing the pressure transmitter body, liquid in the L-shaped connecting pipe is relatively static, the phenomenon that the liquid drives particles, hard objects and sharp objects to scratch is avoided, sensitive elements on the pressure transmitter are prevented, and meanwhile the L-shaped connecting pipe has a filtering function, wherein the pressure transmitter body and the L-shaped connecting pipe are connected through threads, in the semiconductor industry, some pressure tests need some special interfaces, meanwhile, the cleanliness of products has special requirements, the threaded interfaces are common G or M threads, assembly tests are carried out in a common factory building, the requirements of a clean room cannot be met, the sealing performance is poor, and the problem of poor sealing performance is easily caused after disassembly and assembly is carried out.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to provide a VCR interface type pressure transmitter that solves the problems set forth in the background art discussed above.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a VCR interface type pressure transmitter, includes L type pipe, the pressure transmitter body is installed on the top of L type pipe, be provided with the VCR interface between pressure transmitter body and the L type pipe, the VCR interface includes the first takeover with the top welded of pressure transmitter body, set up the installation head on the L type pipe, be provided with spacing bulge loop on the installation head, be provided with the connection bulge loop on the first takeover, connect the bulge loop and correspond with spacing bulge loop, the top of connecting the bulge loop is provided with seal gasket, seal gasket's top is provided with the second takeover, the outside cover of second takeover is equipped with compresses tightly the head, compress tightly overhead the linkage segment that sets up, be provided with the external screw thread on the linkage segment, the installation head has the internal thread, internal thread and external screw thread screw-thread fit.

As a further scheme of the utility model: the pressure transmitter is characterized in that a first through hole is formed in the first connecting pipe, a second through hole is formed in the second connecting pipe, a connecting wire is arranged on the pressure transmitter body, the connecting wire sequentially penetrates through the first through hole and the second through hole and extends outwards, the connecting wire is convenient to lead out, and signal transmission is achieved.

As a still further scheme of the utility model: the L-shaped pipe comprises a transverse pipe and a vertical pipe, the mounting head is welded and fixed to the top end of the vertical pipe, a filtering net cover is arranged at the tail end of the transverse pipe, and the filtering function is achieved through the filtering net cover.

As a still further scheme of the utility model: the filter screen cover is provided with a mounting ring, the mounting ring is in threaded connection with the transverse pipe, and the filter screen cover is mounted on the mounting ring, so that the filter screen cover is convenient to mount.

As a still further scheme of the utility model: the cross sections of the mounting head and the pressing head are hexagonal, so that the pressing head can be conveniently and fixedly pressed.

As a still further scheme of the utility model: the side wall of the mounting head is provided with a leakage testing hole which is communicated with the inner cavity of the mounting head, so that the sealing condition of the mounting head can be observed conveniently.

As a still further scheme of the utility model: the second connecting pipe is provided with a connecting clamping ring, the connecting clamping ring is matched with the connecting section, and the connecting clamping ring and one side of the connecting convex ring, which is close to the sealing gasket, are provided with pressing rings, so that the pressing performance of the sealing gasket is enhanced, and the sealing performance is improved.

Compared with the prior art, the utility model has the advantages that:

according to the utility model, the VCR interface is arranged between the pressure transmitter body and the L-shaped pipe, the connecting section is screwed towards the interior of the mounting head through the matching of the internal thread and the external thread by screwing the pressing head, so that the connecting clamp ring is driven to move towards the interior of the mounting head, the pressing ring connected with the connecting clamp ring is driven to extrude the sealing gasket, the sealing gasket extrudes the pressing ring on the connecting convex ring, the pressing ring can provide a reverse acting force for the sealing gasket, so that the sealing gasket is pressed by the two pressing rings, the sealing gasket is deformed under the action of the bidirectional pressure, the sealing with the side wall of the inner cavity of the mounting head is realized, the sealing effect is enhanced, the structure is convenient to mount and dismount, and the sealing gasket can be dismounted repeatedly, and a new sealing gasket is required to be replaced when the sealing gasket is remounted after the dismounting.

In addition, the L-shaped pipe is arranged in the pressure transmitter, the L-shaped pipe comprises a transverse pipe and a vertical pipe, the transverse pipe is provided with a filter screen which can intercept impurities in a measured liquid medium, the pressure transmitter body is prevented from being scratched, in addition, the filter screen is detachably connected with the transverse pipe through a mounting ring, the replacement of the filter screen is convenient, in addition, the side wall of the mounting head is provided with a leakage testing hole, the leakage testing hole is communicated with the inner cavity of the mounting head, and the sealing condition of the mounting head can be directly and rapidly observed through the leakage testing hole.

Drawings

FIG. 1 is a schematic diagram of the overall construction of a VCR interface type pressure transmitter of the present invention;

FIG. 2 is a sectional view of a connection structure among the mounting head, the first adapter tube, the pressure transmitter body, the sealing gasket, the second adapter tube and the pressing head according to the present invention;

fig. 3 is an exploded view of the connection structure between the mounting head, the first adapter tube, the pressure transmitter body, the sealing gasket, the second adapter tube and the clamp head according to the present invention.

In the figure: 1. an L-shaped pipe; 2. a pressure transmitter body; 3. a VCR interface; 4. a first adapter tube; 5. a mounting head; 6. a limit convex ring; 7. a connecting convex ring; 8. sealing gaskets; 9. a second adapter tube; 10. a compression head; 11. a connecting section; 12. an external thread; 13. an internal thread; 14. a first through hole; 15. a second through hole; 16. a connecting wire; 17. a transverse tube; 18. a vertical tube; 19. a filtering net cover; 20. a mounting ring; 21. a leak test hole; 22. connecting a snap ring; 23. and (5) pressing a ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

referring to fig. 1 to 3, in the embodiment of the present invention:

the utility model provides a pressure transmitter of VCR interface 3 type, including L type pipe 1, pressure transmitter body 2 is installed on the top of L type pipe 1, be provided with VCR interface 3 between pressure transmitter body 2 and the L type pipe 1, VCR interface 3 includes the first takeover 4 with the top welded of pressure transmitter body 2, set up installation head 5 on the L type pipe 1, be provided with spacing bulge loop 6 on the installation head 5, be provided with on the first takeover 4 and connect bulge loop 7, it corresponds with spacing bulge loop 6 to connect bulge loop 7, the top of connecting bulge loop 7 is provided with seal gasket 8, seal gasket 8 adopts metal seal gasket 8, preferably SUS316L gasket, seal gasket 8's top is provided with second takeover 9, the outside cover of second takeover 9 is equipped with compressing head 10, set up linkage segment 11 on compressing head 10, be provided with external screw thread 12 on linkage segment 11, installation head 5 has interior thread 13, interior thread 13 and external screw thread 12 screw-thread fit.

Referring to fig. 2 and 3, in an embodiment of the present invention: first lead to the line hole 14 has been seted up on first takeover 4, second lead to the line hole 15 has been seted up on the second takeover 9, be provided with connecting wire 16 on the pressure transmitter body 2, connecting wire 16 passes first lead to line hole 14 and second lead to the line hole 15 in proper order and outwards extends, be convenient for outwards draw forth the connecting wire 16 of being connected on with the pressure transmitter body 2 through setting up of first lead to line hole 14 and second lead to the line hole 15, the transmission of the signal of being convenient for, sealing performance when strengthening the installation simultaneously.

Referring to fig. 1, in an embodiment of the present invention: l type pipe 1 includes violently pipe 17 and standpipe 18, and installation head 5 is fixed with the top welding of standpipe 18, and the tail end of violently pipe 17 is provided with filter screen panel 19, intercepts the impurity in the measured liquid medium through filter screen panel 19, avoids scraping pressure transmitter body 2, is provided with collar 20 on the filter screen panel 19, and threaded connection between collar 20 and the violently pipe 17, filter screen panel 19 installs on collar 20, is convenient for filter screen panel 19's change through the setting of collar 20.

Referring to fig. 1 and 3, in an embodiment of the present invention: the cross sections of the mounting head 5 and the pressing head 10 are hexagonal, so that the connecting head and the mounting head 5 can be conveniently screwed when being fixedly connected.

Referring to fig. 2 and 3, in an embodiment of the present invention: be provided with on the lateral wall of installation head 5 and reveal test hole 21, reveal test hole 21 and install the inner chamber intercommunication of head 5, through revealing test hole 21 can direct quick observation installation head 5's the sealed condition.

Referring to fig. 2 and 3, in an embodiment of the present invention: be provided with on the second takeover 9 and connect snap ring 22, connect snap ring 22 and linkage segment 11 matching, connect snap ring 22 and be connected one side that the bulge loop 7 is close to seal gasket 8 and all be provided with clamping ring 23, through revolving wrong clamping head 10, make clamping head 10 press move and connect snap ring 22, drive clamping ring 23 of being connected with it through connecting snap ring 22 and extrude seal gasket 8, thereby extrude seal gasket 8's effort through two clamping rings 23, make seal gasket 8 warp, realize with the sealed of the lateral wall of the 5 inner chambers of installation head.

Example 2:

referring to fig. 1-3, the present invention relates to a VCR interface type pressure transmitter, when in use, firstly, a connection line 16 on a pressure transmitter body 2 is inserted through a first through hole 14 in advance, then the pressure transmitter body 2 and a first connection pipe 4 are welded and fixed, when in installation, the pressure transmitter body 2 is inserted into a standpipe 18 through an installation head 5, so that a connection convex ring 7 on the first connection pipe 4 is correspondingly matched and contacted with a limit convex ring 6 on the installation head 5, the installation limit of the first connection pipe 4 is realized, thereby the installation position of the pressure transmitter body 2 is limited, then a sealing gasket 8 is inserted into an inner cavity of the installation head 5 through the connection line 16, then the connection line 16 is inserted through a second through hole 15 on a second connection pipe 9, then an external thread 12 on a connection section 11 is in threaded fit connection with an internal thread 13 on the installation head 5, and the head 10 is screwed and pressed, make linkage segment 11 revolve to installing the inside spiral-wound of head 5 through the cooperation of internal thread 13 and external screw thread 12, thereby drive and connect snap ring 22 to the inside removal of installing head 5, the clamping ring 23 that drives to be connected with it through connecting snap ring 22 extrudes seal gasket 8, seal gasket 8 extrudees the clamping ring 23 on connecting bulge loop 7, 8 reverse effort of seal gasket can be given to clamping ring 23, thereby make seal gasket 8 receive the pressure of two clamping rings 23, under the effect of two-way pressure, make seal gasket 8 warp, realize with the sealed of the lateral wall of installing the 5 inner chambers of head, strengthen sealed effect, this structure is convenient for install and dismantle, and can dismantle repeatedly, need more renew seal gasket 8 when reinstalling after the dismantlement.

Example 3:

referring to fig. 1-3, on the basis of embodiment 2, the utility model relates to a VCR interface 3 type pressure transmitter, which includes an L-shaped pipe 1, the L-shaped pipe 1 includes a horizontal pipe 17 and a vertical pipe 18, and a filtering mesh enclosure 19 is disposed on the horizontal pipe 17, and impurities in a measured liquid medium can be intercepted by the filtering mesh enclosure 19, so as to avoid scratching a pressure transmitter body 2, in addition, the filtering mesh enclosure 19 is detachably connected with the horizontal pipe 17 through a mounting ring 20, so as to facilitate replacement of the filtering mesh enclosure 19, and in addition, a leakage testing hole 21 is disposed on a side wall of the mounting head 5, the leakage testing hole 21 is communicated with an inner cavity of the mounting head 5, and the sealing condition of the mounting head 5 can be directly and rapidly observed through the leakage testing hole 21.

In the utility model, all components of the VCR interface 3 are processed by processes of electropolishing, cleaning and the like, and the cleanliness and the sealing performance are high.

In all the above-mentioned embodiments, the connection between the two components may be selected from welding, matching connection of bolt and nut, bolt or screw connection, or other known connection methods according to practical situations, which are not described herein in detail, and the above-mentioned embodiments are only preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can be within the technical scope of the present invention, and equivalent substitutions or changes can be made according to the technical solution of the present invention and the practical idea thereof, and all the modifications and changes are intended to be covered by the scope of the present invention.

Claims

1. The utility model provides a VCR interface type pressure transmitter, includes L type pipe (1), pressure transmitter body (2), its characterized in that are installed to the top of L type pipe (1): a VCR interface (3) is arranged between the pressure transmitter body (2) and the L-shaped pipe (1), the VCR interface (3) comprises a first connecting pipe (4) welded with the top end of the pressure transmitter body (2), an installing head (5) is arranged on the L-shaped pipe (1), a limiting convex ring (6) is arranged on the installing head (5), a connecting convex ring (7) is arranged on the first connecting pipe (4), the connecting convex ring (7) corresponds to the limiting convex ring (6), a sealing gasket (8) is arranged at the top end of the connecting convex ring (7), a second sealing gasket (9) is arranged at the top end of the sealing gasket (8), a pressing head (10) is sleeved outside the second connecting pipe (9), a connecting section (11) is arranged on the pressing head (10), an external thread (12) is arranged on the connecting section (11), the installing head (5) is provided with an internal thread (13), the internal thread (13) is in threaded fit with the external thread (12).

2. A VCR interface-type pressure transmitter as claimed in claim 1 wherein: first through hole (14) have been seted up on first takeover (4), second through hole (15) have been seted up on second takeover (9), be provided with connecting wire (16) on pressure transmitter body (2), connecting wire (16) pass first through hole (14) and second through hole (15) in proper order and outwards extend.

3. A VCR interface-type pressure transmitter as claimed in claim 1 wherein: the L-shaped pipe (1) comprises a transverse pipe (17) and a vertical pipe (18), the mounting head (5) is fixedly welded to the top end of the vertical pipe (18), and a filter screen (19) is arranged at the tail end of the transverse pipe (17).

4. A VCR interface-type pressure transmitter as claimed in claim 3 wherein: the filter screen cover is characterized in that a mounting ring (20) is arranged on the filter screen cover (19), the mounting ring (20) is in threaded connection with the transverse pipe (17), and the filter screen cover (19) is arranged on the mounting ring (20).

5. A VCR interface-type pressure transmitter as claimed in claim 1 wherein: the cross sections of the mounting head (5) and the pressing head (10) are both hexagonal.

6. The VCR interface-type pressure transmitter of claim 5, wherein: a leakage test hole (21) is formed in the side wall of the mounting head (5), and the leakage test hole (21) is communicated with the inner cavity of the mounting head (5).

7. A VCR interface-type pressure transmitter as claimed in claim 2 wherein: be provided with on second takeover (9) and connect snap ring (22), connect snap ring (22) and linkage segment (11) matching, one side that connection snap ring (22) and connection bulge loop (7) are close to seal gasket (8) all is provided with clamping ring (23).