CN221632850U - RTK internal signal connection structure - Google Patents
RTK internal signal connection structure Download PDFInfo
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- CN221632850U CN221632850U CN202323089136.8U CN202323089136U CN221632850U CN 221632850 U CN221632850 U CN 221632850U CN 202323089136 U CN202323089136 U CN 202323089136U CN 221632850 U CN221632850 U CN 221632850U
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- 238000004891 communication Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 11
- 239000004020 conductor Substances 0.000 description 8
- 238000007789 sealing Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses an RTK internal signal connection structure, which comprises a TNC common-axis head, a top cover and a shielding cover, wherein the top cover and the shielding cover are used for installing the TNC common-axis head; the shielding cover is arranged in the GNSS receiver and comprises a first fixing part and a second fixing part, the first fixing part is fixedly arranged with the GNSS receiver, the GNSS antenna and the TNC coaxial head are arranged above the first fixing part, the GNSS antenna is arranged close to the first fixing part, and the second fixing part passes through the GNSS antenna to be connected with the TNC coaxial head; the top cover is arranged on the shielding cover and the GNSS antenna, a central through hole is formed in the central position of the top cover, the axis of the central through hole coincides with the axis of the TNC coaxial head, the diameter of the central through hole is larger than the outer diameter of the TNC coaxial head, and the TNC coaxial head passes through the central through hole away from the shielding cover end and is connected with the radio antenna; the RTK internal signal connection structure ensures that the top cover is fixed with the bottom shell of the GNSS receiver through threads, is simple to operate, and effectively reduces the overall product diameter and volume of the GNSS receiver.
Description
Technical Field
The utility model relates to the technical field of navigation positioning, in particular to an RTK internal signal connection structure.
Background
The traditional connection mode of the RTK radio antenna is as follows: the radio antenna inserts corresponding TNC and is in the spindle nose, and the coaxial head of TNC passes through RG178 coaxial line and is connected with radio module and MCX connector in the GNSS receiver, then on the coaxial head of TNC is fixed to the top cap, and RG178 coaxial line passes the GNSS antenna in the lead wire, finally with radio module and the MCX connector connection communication in the GNSS receiver, the instrument begins normal work.
By adopting the mode, the use purpose can be achieved, but in the production and assembly process, because the TNC is directly fixedly connected with the shaft head and the top cover, the top cover and the bottom shell of the GNSS receiver cannot be fixed by using threads, the bolts are required to be used for fixing, the whole product diameter and the whole volume of the GNSS receiver are increased, and the assembly operation is complicated.
Disclosure of utility model
The utility model aims to provide an RTK internal signal connection structure, which solves the problems in the background technology, ensures that a top cover is fixed with a bottom shell of a GNSS receiver through threads, is simple to operate, and effectively reduces the overall product diameter and volume of the GNSS receiver.
According to the technical scheme, the RTK internal signal connection structure is used for realizing connection between a radio station antenna and a GNSS antenna in a GNSS receiver and comprises a TNC common-axis head, a top cover and a shielding cover, wherein the top cover and the shielding cover are used for installing the TNC common-axis head;
The shielding cover is arranged in the GNSS receiver and comprises a first fixing part and a second fixing part, the first fixing part is fixedly arranged with the GNSS receiver, the GNSS antenna and the TNC coaxial head are arranged above the first fixing part, the GNSS antenna is close to the first fixing part, and the second fixing part passes through the GNSS antenna and is connected with the TNC coaxial head;
The top cover is arranged on the shielding cover and the GNSS antenna, a central through hole is formed in the central position of the top cover, the axis of the central through hole coincides with the axis of the TNC coaxial head, the diameter of the central through hole is larger than the outer diameter of the TNC coaxial head, and the TNC coaxial head is far away from the end of the shielding cover and penetrates through the central through hole to be connected with the radio antenna.
Preferably, the first fixing portion is plate-shaped, the second fixing portion is columnar, and the second fixing portion and the first fixing portion are fixedly connected towards the GNSS antenna side.
Preferably, the second fixing portion is provided with a connecting hole, and the TNC coaxial head is inserted into the connecting hole and connected with the second fixing portion.
Preferably, the connection Kong Hengjie is polygonal, and the cross-sectional shape of the TNC coaxial head is matched with the connection hole.
Preferably, the connection Kong Hengjie is rectangular or regular hexagonal.
Preferably, the TNC coaxial head is in signal communication with the GNSS antenna through an RG178 coaxial line, and the RG178 coaxial line is disposed in the connection hole.
Preferably, a through hole is formed in the GNSS antenna, and the second fixing portion is penetrated by the through hole.
Preferably, a limiting step is fixedly arranged on the TNC coaxial head, the limiting step is arranged on the side, facing the GNSS antenna, of the top cover, and the top cover compresses the limiting step.
Preferably, the TNC coaxial head is further sleeved with a sealing gasket and a locking nut, the sealing gasket and the locking nut are arranged on the side, far away from the GNSS antenna, of the top cover, and the locking nut compresses the sealing gasket to the top cover and seals the central through hole.
Preferably, the GNSS receiver is provided with a bottom shell, and the top cover is arranged on the bottom shell and is in threaded connection with the bottom shell.
The technical scheme of the utility model has the beneficial effects that the RTK internal signal connection structure comprises the following steps:
1. Through set up central through-hole on the top cap, the coaxial head of TNC passes central through-hole and radio station antenna connection for the coaxial head of TNC does not with top cap fixed connection, the operation of top cap just so can not lead to the fact the influence to the rotatory degree of freedom of the coaxial head of TNC, has realized TNC and has assembled and the location with the accuracy of spindle nose.
2. The operation of top cap just can not lead to the fact the influence to TNC coaxial head rotation degree of freedom, is the top cap and is connected with the drain pan through the screw thread and provide the condition promptly, and top cap and drain pan pass through threaded connection, have reduced the diameter and the volume of the GNSS receiver that have used this RTK internal signal connection structure.
3. The top cover and the bottom shell are in threaded connection, so that the simple and convenient assembly effect is achieved, the simplicity of production and maintenance of instruments and equipment is effectively improved, the performance of the whole machine is enhanced, and working errors caused by too many wires in the production or maintenance process are avoided.
4. The shielding cover is fixed with the GNSS receiver, the shielding cover simultaneously realizes the installation of the TNC coaxial head, the limitation of the rotation automation degree of the TNC coaxial head is realized, the GNSS antenna is fixedly connected with the shielding cover, and the shielding cover is fixed with the GNSS receiver, so that the positions of the GNSS antenna and the TNC coaxial head are relatively fixed, the GNSS antenna and the TNC coaxial head are conducted through RG178 coaxial signals, the RG178 coaxial line is stable, the influence is small, and the whole signal of the instrument is stable.
Drawings
FIG. 1 is a cross-sectional view of a GNSS receiver with an RTK internal signal connection structure according to the present disclosure.
Fig. 2 is a schematic diagram of an internal signal connection structure of an RTK according to this embodiment.
Fig. 3 is an enlarged view at a in fig. 2.
Wherein, 1, TNC is the same shaft head; 11. a limit step; 12. a sealing gasket; 13. a lock nut; 2. a shielding cover; 21. a first fixing portion; 22. a second fixing portion; 23. a connection hole; 3. a top cover; 31. a central through hole; 4. RG178 coaxial line; 100. a station antenna; 200. a GNSS receiver; 201. a GNSS antenna; 202. a bottom case; 203. and a through hole.
Detailed Description
For the convenience of understanding the technical scheme of the present utility model, the technical scheme of the present utility model will be further described with reference to specific examples and drawings in the specification.
Hereinafter, only certain exemplary embodiments are described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.
In the present utility model, unless explicitly stated and limited otherwise, terms such as "mounted," "connected," "secured," and the like are to be construed broadly. The specific meaning of the terms described above in the present utility model will be understood by those skilled in the art from the specification and drawings in combination with specific cases.
As shown in fig. 1, in the technical scheme of the present utility model, an RTK internal signal connection structure is provided, where the RTK internal signal connection structure realizes connection between a radio antenna 100 and a GNSS antenna 201 in a GNSS receiver 200. The RTK internal signal connection structure comprises a TNC coaxial head 1 and a top cover 3 and a shielding cover 2 for installing the TNC coaxial head 1. The top cover 3 and the shielding cover 2 are both mounted on the GNSS receiver 200, and simultaneously the TNC coaxial head 1 is mounted together. During assembly, the GNSS antenna 201 and the TNC coaxial head 1 are pre-installed with the shielding cover 2, and then when the top cover 3 and the GNSS receiver 200 are installed, the TNC coaxial head 1 is axially installed and fixed through the top cover 3, namely, the TNC coaxial head 1 is installed and fixed, namely, the fixed connection of the radio antenna 100 and the GNSS receiver 200 through the TNC coaxial head 1 is realized.
As shown in fig. 2, in the present embodiment, the shielding cover 2 is installed in the GNSS receiver 200 and includes a first fixing portion 21 and a second fixing portion 22, and the first fixing portion 21 is fixedly installed with the GNSS receiver 200. The GNSS antenna 201 and the TNC homotab 1 are disposed above the first fixing portion 21, and the GNSS antenna 201 is disposed near the first fixing portion 21, and the GNSS antenna 201 is mounted on the first fixing portion 21 of the shielding cover 2 by screws, and the GNSS antenna 201 is fixed in relative position to the shielding cover 2. The second fixing portion 22 is connected to the TNC coaxial head 1 through the GNSS antenna 201. And the top cover 3 is covered on the shielding cover 2 and the GNSS antenna 201, and the center of the top cover 3 is provided with a center through hole 31. The axis of the central through hole 31 coincides with the axis of the TNC coaxial head 1, and the diameter of the central through hole 31 is larger than the outer diameter of the TNC coaxial head 1. The TNC common-axis head 1 is far away from the shielding cover 2 and penetrates through the center through hole 31 to be connected with the radio antenna 100.
Based on the above embodiment, the TNC homohead 1 is pre-mounted with the shielding cover 2, limiting the rotational freedom of the TNC homohead 1. And because of the setting of the central through hole 31, in the installation of the top cover 3, the rotational freedom degree of the TNC and the shaft head 1 is not influenced, and the TNC coaxial head 1 is pushed inwards along with the installation of the top cover 3, namely, the installation of the top cover 3 changes the freedom degree of the TNC and the shaft head 1 in the axial direction, namely, the top cover 3 realizes the axial limitation of the TNC and the shaft head 1. Namely, the top cover 3 and the shielding cover 2 are both jointly used for installing the TNC coaxial head 1.
Based on the above embodiment, through setting up central through hole 31 on top cap 3, TNC is connected with radio antenna 100 with spindle nose 1 passing central through hole 31 for TNC is fixed with spindle nose 1 and top cap 3 earlier, and the operation of top cap 3 just so can not cause the influence to TNC coaxial head rotation degree of freedom, has realized TNC and has assembled with the precision of spindle nose and location.
Based on the above embodiment, the top cover 3 can rotate around the axis of the central through hole 31 due to the arrangement of the central through hole 31, which provides the condition for the rotation assembly of the top cover 3.
A bottom case 202 is provided on the GNSS receiver 200, and a top cover 3 is covered on the bottom case 202 and screwed with the bottom case 202. Namely, the top cover 3 is covered on the bottom shell 202, and is screwed with the bottom shell 202 by rotating. The top cap passes through threaded connection with the drain pan, has reduced the diameter and the volume of the GNSS receiver that have used this inside signal connection structure of RTK. The top cover and the bottom shell are in threaded connection, so that the simple and convenient assembly effect is achieved, the simplicity of production and maintenance of instruments and equipment is effectively improved, the performance of the whole machine is enhanced, and working errors caused by too many wires in the production or maintenance process are avoided. The top cap and drain pan threaded connection, when need be to the inside maintenance of GNSS receiver, top cap 3 rotates down, does not cause the influence to TNC coaxial head 1 and with TNC with the radio station antenna 100 that spindle nose 1 is connected, easy operation.
As shown in fig. 2, in the present embodiment, the first fixing portion 21 has a plate shape, the second fixing portion 22 has a column shape, and the second fixing portion 22 is fixedly connected to the first fixing portion 21 toward the GNSS antenna 201. The structure of shielding lid 2 is convenient for shielding lid 2 self installation on the one hand, and on the other hand is convenient for the installation and the fixed of GNSS antenna 201, and again, second fixed part 22 is columnar, and the arrangement and the installation of GNSS antenna 201 and shielding lid 2 of being convenient for, second fixed part 22 pass first fixed part 21 and realize TNC and the pre-installation of spindle nose 1, have reduced the distance between first fixed part 21 and the TNC coaxial head 1 effectively. Meanwhile, the distance between the top cover 3 and the shielding cover 2 is shortened, and the miniaturization of the GNSS receiver is realized.
Based on the above embodiment, the second fixing portion 22 on the shielding cover 2 is provided to fix the TNC coaxial head 1 on one hand, and provide a condition for conducting signals of the TNC coaxial head 1 on the other hand. That is, the second fixing portion 22 is provided with a connection hole 23, and the tnc and the stub shaft 1 are inserted into the connection hole 23 to be connected to the second fixing portion 22. The TNC coaxial cable head 1 is in signal conduction with the GNSS antenna 201 through the RG178 coaxial cable 4, and the RG178 coaxial cable 4 is arranged in the connecting hole 23. The connection hole 23 is arranged to fix the TNC coaxial head 1 on one hand and provide conditions for conducting signals of the TNC coaxial head 1 on the other hand. The RG178 coaxial line 4 is arranged in the connecting hole 23, so that the stability of the RG178 coaxial line 4 is ensured, the TNC coaxial head 1 and the GNSS antenna 201 are fixed through the shielding cover 2, the stability of the RG178 coaxial line 4 is further ensured, the RG178 coaxial line 4 is only used as a signal line, only signal conduction is realized, the connection of all components is not required to be assisted, and the stability of signals in the GNSS receiver is ensured.
In this embodiment, the cross section of the connecting hole 23 is polygonal, and the cross section of the TNC coaxial head 1 is matched with the connecting hole 23, so as to realize the installation of the TNC coaxial head 1. The cross section of the connecting hole 23 is polygonal, so that the limitation of the rotational freedom degree of the TNC coaxial head 1 is realized, and the pre-installation of the TNC coaxial head 1 is realized.
In this embodiment, the cross section of the connecting hole 23 is rectangular or regular hexagonal, and the structure is regular and the installation is stable.
In this embodiment, a through hole 203 is provided in the GNSS antenna 201, and the second fixing portion 22 is penetrated by the through hole 203. The through hole 203 provides a position for the shielding cover, so that the shielding cover is convenient for installing the TNC and the spindle nose 1, the integral height of the GNSS receiver is reduced, and the size of the GNSS receiver is reduced.
In this embodiment, a limiting step 11 is fixedly arranged on the TNC common shaft head 1, the limiting step 11 is arranged on the side of the top cover 3 facing the GNSS antenna 201, and the top cover 3 compresses the limiting step 11. The top cover 3 rotates and presses the limiting step 11 downwards, so that TNC and the shaft head 1 are pressed into the central through hole 31 of the shielding cover 2, and the axial freedom degree of the TNC coaxial head 1 is limited. The rotation of the top cover 3 does not affect the rotational freedom of the TNC coaxial head 1.
In this embodiment, the TNC coaxial head 1 is further sleeved with a sealing gasket 12 and a locking nut 13, the sealing gasket 12 and the locking nut 13 are disposed on the side of the top cover 3 far away from the GNSS antenna 201, and the locking nut 13 compresses the sealing gasket 12 onto the top cover 3 and seals the central through hole 31. The lock nut 13 and the gasket 12 are arranged to seal the central through hole 31.
In this scheme, TNC coaxial head includes outer conductor, medium and inner conductor, and the inner conductor is located the inside of outer conductor, and the medium is located between inner conductor and the outer conductor, all is provided with the waterproof layer between outer conductor and the medium and between inner conductor and the medium.
While the present utility model has been described above by way of example with reference to the embodiments and the accompanying drawings, it is apparent that the specific implementation of the present utility model is not limited by the foregoing, and it is within the scope of the present utility model to apply the inventive concept and technical solution to other situations without any substantial improvement or improvement.
Claims (10)
1. An RTK internal signal connection structure for realizing connection between a radio station antenna and a GNSS antenna in a GNSS receiver is characterized by comprising a TNC common-axis head, a top cover and a shielding cover, wherein the top cover and the shielding cover are used for installing the TNC common-axis head;
The shielding cover is arranged in the GNSS receiver and comprises a first fixing part and a second fixing part, the first fixing part is fixedly arranged with the GNSS receiver, the GNSS antenna and the TNC coaxial head are arranged above the first fixing part, the GNSS antenna is close to the first fixing part, and the second fixing part passes through the GNSS antenna and is connected with the TNC coaxial head;
The top cover is arranged on the shielding cover and the GNSS antenna, a central through hole is formed in the central position of the top cover, the axis of the central through hole coincides with the axis of the TNC coaxial head, the diameter of the central through hole is larger than the outer diameter of the TNC coaxial head, and the TNC coaxial head is far away from the end of the shielding cover and penetrates through the central through hole to be connected with the radio antenna.
2. The RTK internal signal connection structure according to claim 1, wherein the first fixing portion is plate-shaped, the second fixing portion is columnar, and the second fixing portion is fixedly connected with the first fixing portion toward a GNSS antenna side.
3. The RTK internal signal connection structure according to claim 2, wherein a connection hole is provided on the second fixing portion, and the TNC coaxial head is inserted into the connection hole to be connected with the second fixing portion.
4. The RTK internal signal connection structure according to claim 3, wherein the connection Kong Hengjie is polygonal, and the TNC coaxial head cross-section is shaped to match the connection hole.
5. The RTK internal signal connection structure of claim 4, wherein the connection Kong Hengjie is rectangular or regular hexagonal.
6. The RTK internal signal connection structure according to claim 3, wherein the TNC coaxial head is in signal communication with the GNSS antenna through an RG178 coaxial line, and the RG178 coaxial line is disposed in the connection hole.
7. The RTK internal signal connection structure according to claim 1, wherein a through hole is provided on the GNSS antenna, and the second fixing portion is penetrated by the through hole.
8. The RTK internal signal connection structure according to claim 1, wherein a limiting step is fixedly arranged on the TNC coaxial head, the limiting step is disposed on the side of the top cover facing the GNSS antenna, and the top cover compresses the limiting step.
9. The RTK internal signal connection structure according to claim 1, wherein a gasket and a lock nut are further sleeved on the TNC coaxial head, the gasket and the lock nut are disposed on the side of the top cover away from the GNSS antenna, and the lock nut compresses the gasket onto the top cover and seals the central through hole.
10. The RTK internal signal connection structure according to claim 1, wherein a bottom case is provided on the GNSS receiver, and the top cover is provided on the bottom case and is screwed with the bottom case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323089136.8U CN221632850U (en) | 2023-11-15 | 2023-11-15 | RTK internal signal connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323089136.8U CN221632850U (en) | 2023-11-15 | 2023-11-15 | RTK internal signal connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221632850U true CN221632850U (en) | 2024-08-30 |
Family
ID=92490492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323089136.8U Active CN221632850U (en) | 2023-11-15 | 2023-11-15 | RTK internal signal connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221632850U (en) |
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2023
- 2023-11-15 CN CN202323089136.8U patent/CN221632850U/en active Active
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