CN214958532U - Cable sealing device and compressor housing - Google Patents
Cable sealing device and compressor housing Download PDFInfo
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- CN214958532U CN214958532U CN202121449719.5U CN202121449719U CN214958532U CN 214958532 U CN214958532 U CN 214958532U CN 202121449719 U CN202121449719 U CN 202121449719U CN 214958532 U CN214958532 U CN 214958532U
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Abstract
The utility model discloses a cable sealing device and compressor housing belongs to compressor technical field, including the threaded sleeve ring, screwed pipe, compact heap, seal cushion and the gland nut of coaxial setting, the both ends threaded connection threaded sleeve ring and the gland nut of screwed pipe, compact heap and seal cushion set up in the screwed pipe, are used for wearing to establish the sensor cable in the screwed pipe, and the sensor cable passes compact heap and seal cushion.
Description
Technical Field
The utility model belongs to the technical field of the compressor, concretely relates to cable sealing device and compressor housing.
Background
The measurement of the internal parameters of the compressor, such as the temperature measurement of internal parts of the compressor, and the measurement of the air suction, exhaust and cylinder pressures of the compressor, has very important significance for researching the actual operation rule of the compressor and providing references for improving the efficiency, reducing the noise and improving the reliability of the compressor. The shell of the compressor belongs to a closed pressure container, the normal operation of the compressor has extremely high requirement on the sealing performance of the shell, and the upper shell and the lower shell are sealed in a welding mode at present. The internal parameters of the compressor are measured, a temperature sensor or a pressure sensor measuring head is in contact with the internal parts of the compressor, the other end of the temperature sensor or the pressure sensor measuring head is connected with the acquisition equipment, and the cable of the sensor can acquire target data only by passing through the shell. The casing and cable combined part belongs to the weakest link of the sealing performance of the whole test system, and the sealing performance between the cable and the casing greatly affects the accuracy of data acquisition and always belongs to the difficulty in the industry.
The inventor finds that when the thermocouple is used for acquiring the temperature parameters of the internal parts of the compressor in the prior art, a mode of punching a lead wire on a shell of the compressor or leading a lead wire from a process pipe of the compressor and sealing the lead wire by using glue is often adopted. The utility model considers that the sealing effect of the method is poor, and when the pressure in the compressor shell is higher, the risk of air leakage exists, and the testing precision is influenced; the gluing and sealing method has poor pressure bearing capacity, poor temperature resistance and oil resistance, and the risk of air leakage exists in the long-period parameter acquisition process; the rubber coating seals the scheme, and the dismouting is inconvenient, and the sensor cable can be damaged in the dismantlement process.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a not enough to prior art exists, the utility model aims at providing a cable sealing device and compressor housing adopts sealed threaded connection mode, and it is convenient to assemble the dismantlement, and is sealed reliable, high pressure resistant, high temperature resistant.
In order to achieve the above purpose, the present invention is realized by the following technical solution:
in a first aspect, the technical scheme of the utility model a cable sealing device is provided, including the screw thread lantern ring, screwed pipe, compact heap, seal cushion and the gland nut of coaxial setting, the both ends threaded connection screw thread lantern ring and the gland nut of screwed pipe, compact heap and seal cushion set up in the screwed pipe, are used for wearing to establish the sensor cable in the screwed pipe, and the sensor cable passes compact heap and seal cushion.
Further, the pressing block comprises a plurality of pressing blocks, and the sealing cushion block comprises a plurality of sealing cushion blocks; the plurality of pressing blocks are annularly arrayed around the central axis of the threaded pipe to form a pressing body, and the plurality of sealing cushion blocks are respectively arranged at two ends of the pressing body.
Furthermore, the penetrating track of the sensor cable is superposed on the central axis of the threaded pipe.
Furthermore, both ends of the outer surface of the threaded sleeve are provided with threaded sections, and an outer hexagonal boss is arranged between the two threaded sections.
Furthermore, an annular platform for installing and positioning the pressing block is arranged inside the threaded sleeve.
Furthermore, the compression blocks comprise a first compression block and a second compression block which are both columnar; the outer ends of the first pressing block and the second pressing block are both plane ends and are used for being contacted with the annular platform of the threaded sleeve during assembly; the inner ends of the first pressing block and the second pressing block are respectively provided with a profiling slope surface which is used for being contacted with the sealing cushion block during assembly; through holes for sensor cable routing are formed in the middle of the first compression block and the second compression block; and an annular protrusion for accommodating the sealing cushion block is arranged at the inner end of the first pressing block.
Further, the outer diameter of the annular protrusion is the same as that of the first pressing block.
Furthermore, the sealing cushion block is in a semi-column shape, and two ends of the sealing cushion block are provided with chamfer surfaces used for being matched with the pressing block; and a through hole for a sensor cable lead is arranged in the middle of the sealing cushion block.
Furthermore, the pressing block and the sealing cushion block are provided with a plurality of through holes.
In a second aspect, the present invention further provides a compressor housing, including the cable sealing device according to any one of the first aspect.
Above-mentioned the utility model discloses a technical scheme's beneficial effect as follows:
1) the utility model discloses a sealing device adopts and links firmly the mode with the casing welding and connect the casing, and the essential element adopts metal material simultaneously, and sealed threaded connection mode, assembly and disassembly are convenient, and is sealed reliable, high pressure resistant, high temperature resistant.
2) The utility model discloses a sealing device is applicable to the sealing of various sensor cables and compressor, can carry out single lead sealing according to the operation requirement, also can realize many lead sealing, can reduce the equipment input cost in the test process.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.
Fig. 1 is a schematic overall structure diagram of the present invention according to one or more embodiments;
fig. 2 is an exploded schematic view of the structure of the present invention according to one or more embodiments;
fig. 3 is a schematic view of an installation location on a housing of the present invention according to one or more embodiments;
fig. 4 is a schematic view of a threaded collar of the present disclosure according to one or more embodiments;
fig. 5 is a schematic view of the external structure of a threaded pipe according to one or more embodiments of the present invention;
fig. 6 is a schematic view of the internal structure of a threaded pipe according to one or more embodiments of the present invention;
fig. 7 is a schematic view of a first compression block in a first view configuration according to one or more embodiments of the present disclosure;
fig. 8 is a schematic diagram of a second perspective structure of a first compact block according to one or more embodiments of the present disclosure;
fig. 9 is a schematic view of a first perspective structure of a second compact block according to one or more embodiments of the present disclosure;
fig. 10 is a schematic diagram of a second view structure of a second compact block according to one or more embodiments of the present invention;
fig. 11 is a schematic view of a first seal block according to one or more embodiments of the present invention;
fig. 12 is a schematic view of a second seal block according to one or more embodiments of the present invention;
fig. 13 is a schematic view of a first perspective of a gland nut according to one or more embodiments of the present invention;
fig. 14 is a schematic view of a second perspective of a gland nut according to one or more embodiments of the present invention.
In the figure: 1. the sensor cable, 2, the screw thread lantern ring, 3, the screwed pipe, 31, the screw thread section, 32, outer hexagonal boss, 33, annular platform, 4, gland nut, 41, gland nut's through-hole, 51, first clamp block, 511, the plane end of first clamp block, 512, the profile modeling of first clamp block is domatic, 513, annular platform, 52, the second clamp block, 521, the plane end of second clamp block, 522, the profile modeling of second clamp block is domatic, 53, first seal cushion, 54, the second seal cushion, 10, compressor cylinder pressure acquisition sensor, 20, compressor housing, 30 screw thread lantern ring, 40, compressor exhaust chamber pressure acquisition sensor.
Detailed Description
It should be noted that any combination between the following embodiments is possible.
Example 1
The utility model discloses an among the typical embodiment, this embodiment discloses a cable sealing device, including the threaded sleeve ring 2, screwed pipe 3, compact heap, seal cushion and the gland nut 4 of coaxial setting, the both ends threaded connection threaded sleeve ring 2 and the gland nut 4 of screwed pipe 3, compact heap and seal cushion set up in screwed pipe 3, are used for wearing to establish sensor cable 1 in the screwed pipe 3, and sensor cable 1 passes compact heap and seal cushion. The pressing block comprises a plurality of pressing blocks, and the sealing cushion block comprises a plurality of sealing cushion blocks; the plurality of pressing blocks are annularly arrayed around the central axis of the threaded pipe 3 to form a pressing body, and the plurality of sealing cushion blocks are respectively arranged at two ends of the pressing body.
It is understood that the sealing device in this embodiment is installed in the order of the threaded collar 2, the double-joint threaded pipe 3, the first compression block 51, the seal spacer, the second compression block 52, and the nut.
The threaded lantern ring 2 is made of metal materials such as stainless steel; one side of the threaded lantern ring 2 is fixedly connected with the compressor shell in a welding mode, and the other side of the threaded lantern ring is sealed with the threaded pipe 3 in a threaded fastening mode.
The welding position of the threaded collar 2 on the housing can be arranged according to the position of the sensor.
The inner wall of the threaded lantern ring 2 is processed with sealing pipe threads. The outer diameter of the threaded lantern ring 2 can be designed according to the size of the sensor measuring head, and the sensor measuring head can smoothly pass through the threaded lantern ring.
The threaded sleeve is made of metal materials such as stainless steel; the threaded sleeve is two-way external screw thread structure, and both ends all are equipped with screw thread section 31, and one end is connected with the screw thread lantern ring 2, and the other end is connected with the nut, and the screw thread is sealed pipe thread.
An annular platform 51333 is designed in the threaded sleeve and used for installing and positioning the compression block.
The middle part of the threaded sleeve is provided with an outer hexagonal boss 32 for mounting the threaded sleeve and the threaded pipe 3.
It can be understood that, the two-way external thread structure of the threaded sleeve and the annular boss in the embodiment are both designed symmetrically, and any side of the two-way external thread structure can be connected with the threaded sleeve ring 2 or the nut.
The first pressing block 51 is made of a metal material, such as stainless steel; one side of the first pressing block 51 is a plane, is in contact with the threaded sleeve annular platform 51333 during assembly, and belongs to a pressing surface.
The first pressing block 51 is internally designed with a profile modeling slope surface, is contacted with a sealing cushion block during assembly, and belongs to a pressing surface. The slope surface is matched with the sealing cushion block to be similar to a wedge-shaped structure, the contact area is large, and the sealing performance is good when the slope surface is stressed.
There is the through-hole in first compact heap 51 middle part, for sensor cable 1 walks the line hole, can be 1 hole, also can design porous structure according to sensor quantity, is used for walking of a plurality of sensor cables 1 simultaneously.
The second pressing block 52 is made of a metal material, such as stainless steel; one side of the second pressing block 52 is a plane, and the plane is in contact with the inner plane of the nut during assembly, and belongs to a pressing surface.
The inside design of second compact heap 52 has the profile modeling domatic, contacts with the seal cushion during the assembly, belongs to the compact surface.
The slope surface is matched with the sealing cushion block to be similar to a wedge-shaped structure, the contact area is large, and the sealing performance is good when the slope surface is stressed.
There is the through-hole in second compact heap 52 middle part, for sensor cable 1 walks the line hole, can be 1 hole, also can design porous structure according to sensor quantity, is used for walking of a plurality of sensor cables 1 simultaneously.
The sealing pad is made up of two parts, the first sealing pad 53 being of the same shape as the second sealing pad 54. The split structure is convenient for the cable to pass through.
The two ends of the sealing cushion block are of inclined surface structures, namely chamfer surfaces, and are contacted with the pressing block during installation, and the inclined surfaces on the two sides belong to the pressing surfaces. The inclined plane and the pressing block are matched to be similar to a wedge-shaped structure, so that the contact area is large, and the sealing performance is good when the pressing block is stressed.
A through hole is designed in the middle of the sealing cushion block and used for leading a sensor cable 1, and the size of the lead hole is slightly smaller than that of the cable and is designed to be in interference fit. The lead wire hole can be 1 hole, and a porous structure can also be designed according to the number of the sensors and is simultaneously used for wiring a plurality of sensor cables 1.
The sealing cushion block is made of non-metal materials such as rubber materials, has elasticity and expansibility, expands towards the inner wall, the inclined plane and the lead hole of the pressing block under the action of the pressing block, and fills the pores between the sealing cushion block and the pressing block and between the sensor cable 1 and the lead hole to achieve the sealing effect. Due to the adoption of the elastic non-metallic material, the shape of the elastic non-metallic material can be restored after the elastic non-metallic material is disassembled, and the elastic non-metallic material is convenient to reuse.
The nut is made of metal materials such as stainless steel. The inner wall of the nut is provided with a sealing pipe thread used for being connected with a threaded sleeve.
The nut is of an outer hexagonal structure, and is convenient to mount with the threaded pipe 3.
A through hole is designed in the middle of the nut and used for leading a sensor cable 1.
The characteristics of this embodiment are, adopt and shell welding link firmly the mode, and the essential element adopts metal material simultaneously, sealed threaded connection mode, and the assembly is dismantled conveniently, and is sealed reliable, high pressure resistant, high temperature resistant. The sealing device is suitable for sealing various sensor cables 1 and compressors, single lead sealing can be carried out according to use requirements, multi-lead sealing can also be realized, and the equipment investment cost in the test process can be reduced.
Example 2
In a typical embodiment of the present invention, the present embodiment discloses a compressor housing, comprising the cable sealing device as described in embodiment 1.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a cable sealing device, its characterized in that, including the threaded sleeve ring, screwed pipe, compact heap, seal cushion and the gland nut of coaxial setting, the both ends threaded connection threaded sleeve ring and the gland nut of screwed pipe, compact heap and seal cushion set up in the screwed pipe, are used for wearing to establish the sensor cable in the screwed pipe, and the sensor cable passes compact heap and seal cushion.
2. The cable sealing device of claim 1, wherein the compression block includes a plurality, and the sealing pad includes a plurality; the plurality of pressing blocks are annularly arrayed around the central axis of the threaded pipe to form a pressing body, and the plurality of sealing cushion blocks are respectively arranged at two ends of the pressing body.
3. The cable sealing device according to claim 1, wherein a threading trajectory of the sensor cable coincides with a central axis of the threaded pipe.
4. The cable sealing device of claim 1, wherein the threaded collar has threaded segments on both ends of the outer surface, and an outer hexagonal boss is disposed between the two threaded segments.
5. The cable sealing device of claim 1, wherein the threaded collar has an annular platform disposed therein for seating positioning of the hold-down block.
6. The cable sealing device of claim 1, wherein the compression block comprises a first compression block and a second compression block each having a cylindrical shape; the outer ends of the first pressing block and the second pressing block are both plane ends and are used for being contacted with the annular platform of the threaded sleeve during assembly; the inner ends of the first pressing block and the second pressing block are respectively provided with a profiling slope surface which is used for being contacted with the sealing cushion block during assembly; through holes for sensor cable routing are formed in the middle of the first compression block and the second compression block; the inner end of the first pressing block is provided with an annular protrusion for accommodating the sealing cushion block.
7. The cable sealing device of claim 6, wherein an outer diameter of the annular protrusion is the same as an outer diameter of the first compression block.
8. The cable sealing device according to claim 1, wherein the sealing pad is semi-cylindrical, and both ends of the sealing pad are provided with chamfered surfaces for cooperating with the pressing block; and a through hole for a sensor cable lead is arranged in the middle of the sealing cushion block.
9. The cable sealing device of claim 1, wherein the compression block and the seal block each have a plurality of through holes.
10. A compressor housing comprising a cable sealing device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121449719.5U CN214958532U (en) | 2021-06-28 | 2021-06-28 | Cable sealing device and compressor housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121449719.5U CN214958532U (en) | 2021-06-28 | 2021-06-28 | Cable sealing device and compressor housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214958532U true CN214958532U (en) | 2021-11-30 |
Family
ID=79078670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121449719.5U Active CN214958532U (en) | 2021-06-28 | 2021-06-28 | Cable sealing device and compressor housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214958532U (en) |
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2021
- 2021-06-28 CN CN202121449719.5U patent/CN214958532U/en active Active
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