CN112730901A - Antenna support - Google Patents
Antenna support Download PDFInfo
- Publication number
- CN112730901A CN112730901A CN202011417522.3A CN202011417522A CN112730901A CN 112730901 A CN112730901 A CN 112730901A CN 202011417522 A CN202011417522 A CN 202011417522A CN 112730901 A CN112730901 A CN 112730901A
- Authority
- CN
- China
- Prior art keywords
- antenna
- guide piece
- rod
- guide
- cross bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
Abstract
The invention discloses an antenna support, which comprises a body, wherein the body comprises a base, an upright rod and a cross rod, the bottom surface of the base is provided with a moving wheel, the upright rod is arranged on the base, the cross rod is arranged on the upright rod and can move up and down, the antenna support also comprises an auxiliary moving assembly, the auxiliary moving assembly comprises a linear guide piece and a sucker, the linear guide piece comprises a guide piece A and a guide piece B which are matched, the sucker is arranged below the guide piece B and used for detachably fixing the guide piece B, the guide piece A is arranged on the base, and when the antenna support is used, the direction of the linear guide piece is parallel to or perpendicular to the cross rod. The antenna bracket is additionally provided with the auxiliary moving assembly, so that the antenna bracket body can be assisted to move along a set straight line, repeated alignment in the direction is not needed, and the detection efficiency of detection personnel is improved.
Description
Technical Field
The invention relates to the technical field of electromagnetic compatibility test and measurement, in particular to an antenna bracket for auxiliary support of a butterfly antenna and/or a single-rod antenna.
Background
Bowtie antennas and single rod antennas are two types of antennas commonly used in handheld transmitter immunity detection. They have their own operating specifications. For example, they are required to be moved to a position 5cm away from a detection point of an object to be detected, just above the detection point, when performing detection. The detection object is fixed on the detection table, and a detection point is arranged on the detection object at a distance, such as 5cm and 10cm, transversely or longitudinally. Therefore, the antenna also requires lateral and longitudinal movement. When the butterfly antenna is used for detection, the butterfly antenna also needs to rotate along the vertical axis, and the inflection point of the radio frequency line connected with the butterfly antenna is more than 1m away from the lower end of the butterfly antenna. The single-rod antenna is generally horizontally arranged, and needs to be rotated by 90 degrees in the process of implementing detection so as to provide two different angles, namely horizontal and vertical.
The antenna support is used for auxiliary support of the antenna. The antenna support used in the prior art generally comprises a base, a vertical rod and a cross rod, wherein the vertical rod is fixed on the base, the cross rod is used for installing an antenna, and the cross rod can be installed on the vertical rod in a vertically movable mode so as to meet the moving requirement of the antenna in the height direction. In addition, the universal wheel is installed to the base bottom surface to satisfy the removal demand on the antenna horizontal plane.
The antenna support has the following defects: after the horizontal movement, no matter the transverse movement or the longitudinal movement, the position needs to be aligned again so as to ensure that the movement track is on a certain set straight line in the transverse direction or the longitudinal direction, so that much time is wasted for testing personnel, and the detection efficiency is reduced.
Disclosure of Invention
The invention aims to provide an antenna bracket which is beneficial to improving the detection efficiency.
The technical problem of the invention is solved by the following technical scheme: the utility model provides an antenna support, its includes the body, the body includes base, pole setting, horizontal pole, the base bottom surface is equipped with the removal wheel, the pole setting is installed on the base, the horizontal pole is installed in the pole setting, and the position can reciprocate, its characterized in that, antenna support still includes the supplementary subassembly that removes, the supplementary subassembly that removes includes sharp guide piece and sucking disc, sharp guide piece comprises matched with guide piece A and guide piece B, the sucking disc is installed guide piece B below for guide piece B's detachable is fixed, guide piece A is installed on the base, during the use, the direction of sharp guide piece with the horizontal pole is parallel or perpendicular.
The antenna bracket is particularly additionally provided with the auxiliary moving assembly, the auxiliary moving assembly is installed through the sucker, the disassembly and the assembly are convenient, the antenna bracket body can move along the set direction after the linear guide piece of the auxiliary moving assembly is installed along the set linear, repeated alignment is not needed, and the detection efficiency of detection personnel can be obviously improved. The linear guide piece is arranged in a direction vertical to the cross rod, and the antenna does not need to be aligned repeatedly when moving transversely; the linear guide piece is arranged in parallel to the direction of the cross rod, and the antenna does not need to be aligned repeatedly when moving longitudinally.
As a preferable scheme of the invention:
when in use, the direction of the linear guide piece is vertical to the cross bar;
the cross bar is arranged on the vertical rod and has the following structure:
the upright stanchion is sleeved with a connecting block, a horizontal sleeve is arranged on the connecting block, and the cross rod is inserted in the sleeve and can move axially.
The linear guide rail can enable the antenna support body to move transversely without repeated alignment, and the mounting structure of the cross rod enables the longitudinal movement of the antenna to be directly realized through the push-pull cross rod, so that the longitudinal movement of the antenna does not need repeated alignment.
The horizontal pole is the tubulose, and the front end mouth of pipe is squarely, and detachable the installing is used for connecting the adaptor of single-pole antenna, on the pipe wall in adaptor rear, still opened the screw, is connected with the puller bolt one that is used for fixed single-pole antenna cable in the screw.
The front end of the cross rod is also provided with a hole for mounting a butterfly antenna, the hole longitudinally penetrates through the upper side and the lower side of the tube wall of the cross rod, the antenna support further comprises an auxiliary mounting block, the auxiliary mounting block is provided with a hole and is also connected with a second puller bolt, the second puller bolt is used for being sleeved at the penetrating end of the butterfly antenna after the upper end of the butterfly antenna penetrates through a butterfly antenna mounting hole in the cross rod, and therefore the butterfly antenna can be hung on the cross rod.
By adopting the structure, the single-rod antenna and the butterfly antenna can be conveniently arranged on the cross rod. The mounting structure of the butterfly antenna is simple, the butterfly antenna can rotate, and the butterfly antenna can well meet the requirements of relevant specifications.
And a cable bracket with the height of more than 1m is further arranged on the cross rod so as to ensure that the inflection point of the radio frequency line of the butterfly antenna is more than 1m away from the lower end of the butterfly antenna.
The cable bracket at least provides two cable support positions with the same height so as to support one section of the cable instead of one point, so that the bending angle of the drawn cable is more than 90 degrees, and the cable bracket meets the requirements of relevant specifications.
The guide piece A of the linear guide piece is a vertical guide plane, the guide piece B is a straight rod, and the guide plane is attached to the side face of the straight rod.
The guide piece A of the linear guide piece is a slide block, the guide piece B is a guide rail, and the slide block is detachably arranged on the guide rail.
The installation structure of the sucker and the guide piece B is as follows:
the top end of the chassis is provided with a longitudinal screw hole, a support column is installed in the screw hole, a U-shaped fork opening is formed at the upper end of the support column, and the guide piece B is supported in the fork opening.
Has the advantages that:
the antenna bracket is additionally provided with the auxiliary moving assembly, so that the antenna bracket body can be assisted to move along a set straight line, repeated alignment is not needed in the direction, and the detection efficiency of detection personnel is improved; in addition, the auxiliary moving assembly is installed by adopting the sucker, so that the assembly and disassembly are very convenient, and no trace is left on the ground after the assembly and disassembly.
Drawings
Fig. 1 is a schematic overall structure diagram of an antenna mount according to a first embodiment;
fig. 2 is an exploded enlarged view of an auxiliary moving component of the antenna bracket according to the first embodiment;
figure 3 is a schematic view of an alternative embodiment of the linear guide.
Detailed Description
The present invention will be described in further detail with reference to the following specific embodiments and the accompanying drawings.
Example one
Fig. 1 is a schematic view of the overall structure of an antenna mount. The base of the antenna bracket body is 1, the base is made of PVC materials, the lower end of the base 1 is a square bottom plate 11 provided with universal wheels, and the middle of the bottom plate 11 is provided with a table body 12. The vertical rod 2 of the antenna bracket body is square and is glued and fixed in the pore canal in the middle of the platform body 12 in a matching way. 3 is the horizontal pole of antenna boom body, and its mounting structure is as follows: the upright rod 2 is sleeved with a square connecting block 4, the connecting block 4 is provided with a horizontal sleeve 41, and the cross rod 3 is inserted in the sleeve 41 and can move axially. The sleeve 41 and the cross bar 3 in this embodiment are square, but in other embodiments, they may be designed to be round, etc. The square configuration of the present embodiment prevents undesired rotation of the cross bar 3, as compared to a circular configuration. 42 is a positioning bolt of the connecting block 4. In this embodiment, the up and down movement of the position of the cross bar 3 is realized by moving the connecting block 4. The inner cavity of the cross-bar 3 is also designed as a square so that the single-bar antenna does not rotate when mounted therein by means of the adapter 10. The size of the adapter 10 is matched with the square pipe orifice at the front end of the cross rod 3, and a middle screw hole is used for connecting a single-rod antenna. A screw hole is arranged at the rear part of the pipe orifice at the front end of the cross rod 3, and a puller bolt 31 is connected in the screw hole. The high-frequency cable of the single-rod antenna passes through the inner cavity of the cross rod 3 and then is connected with the single-rod antenna (not shown) installed at the front end pipe orifice of the cross rod, and the jacking bolt 31 is used for positioning the cable. The structure is mainly used for the matching installation of the single-rod antenna.
In this embodiment, the antenna bracket body can be used for mounting not only a single-rod antenna but also a butterfly antenna. The adaptation structure is as follows: the front end of the cross rod 3 is also provided with an opening 32 for installing a butterfly antenna, and the opening 32 longitudinally penetrates through the upper side and the lower side of the tube wall of the cross rod. The antenna bracket body further comprises an auxiliary mounting block 5, the auxiliary mounting block 5 is provided with a longitudinal hole, and meanwhile the side wall is further connected with a puller bolt 51. The auxiliary mounting block 5 is used for being sleeved at the upper end of the butterfly antenna after the butterfly antenna penetrates through a butterfly antenna mounting hole 32 on the cross rod 3, so that the butterfly antenna is hung on the cross rod 3. In addition, the cross rod 3 is also provided with a cable bracket 6 with the height of more than 1m so as to ensure that the inflection point of the radio frequency line of the butterfly antenna is more than 1m away from the lower end of the butterfly antenna, thereby meeting the requirements of relevant specifications. The cable bracket 6 is composed of two round rods which are arranged on the cross rod 3 at intervals in parallel at a certain distance, the lower ends of the round rods are arranged on the cross rod 3 through threads, and the upper ends of the round rods form a U-shaped fork for bearing cables.
The cable bracket is used for supporting the cable, and preferably a section of the cable is supported instead of only one point, so that the bending angle of the cable led down by the cable bracket is more than 90 degrees, and the requirements of relevant specifications are met.
The mounting structures of the single-rod antenna and the butterfly antenna with the structures are convenient to consider and combine with relevant standard requirements.
Fig. 2 is an exploded enlarged view of the auxiliary moving component of the antenna stand, which includes the linear guide and the suction cup 8. The linear guide in this embodiment is formed by a vertical guide plane, i.e. the rear side c of the square base plate 11 in fig. 1, and the straight bar 7. The sucker 8 is arranged below the straight rod 7 and used for quickly and detachably fixing the straight rod 7. In this embodiment, a hand pump suction cup is adopted, and a longitudinal screw hole 81 is formed in the top end of the hand pump suction cup, a support column 9 is installed in the screw hole, a U-shaped fork opening is formed at the upper end of the support column 9, and the straight rod 7 is supported in the fork opening. When in use, the guide plane is attached to the front side surface of the straight rod 7 which is vertical to the direction of the cross rod 3 and fixed on the ground through the sucking disc 8. In the process of moving the antenna bracket body, as long as the guide plane is always attached to the straight rod 7, the moving track of the antenna bracket body can be ensured to be along a set straight line without repeated alignment. Of course, the straight rod 7 of the present invention may also be installed in parallel to the direction of the cross rod 3, so that when the straight rod moves in contact with the guide plane on the corresponding side of the square bottom plate 11, the antenna support body can move along a set straight line in the longitudinal direction. However, in the present embodiment, this need not be the case since the movement in the longitudinal direction can be directly effected by the push-pull cross bar 3.
According to the invention, the auxiliary moving assembly is additionally arranged on the antenna support body, and the auxiliary moving assembly is fixed by the sucker capable of being rapidly disassembled and assembled, so that when the antenna support disclosed by the invention is used as an auxiliary support of an antenna, the working efficiency of a tester can be obviously improved, and the auxiliary moving assembly has the advantages that no trace is left on the ground after being disassembled.
In the test process, if the direction of the single-rod antenna needs to be changed, the straight rod of the auxiliary moving assembly can be detached and erected on the other side of the test board, and then the test is continued. When the distance between the antenna bracket body and the test bench needs to be adjusted by changing the test piece, the straight rod is very convenient to move. Therefore, the auxiliary moving assembly has the characteristic of convenient assembly and disassembly, and provides good operability for testing personnel in the field.
The invention is not limited to the above-described alternative embodiments, and various other modifications, substitutions and alterations can be made to the invention based on the general technical knowledge and the conventional means in the field, and the invention is within the scope of the appended claims. For example, the lifting of the cross bar in the invention is realized by moving the connecting block in the above embodiment, and in other embodiments, the lifting vertical rod can be selected to realize the vertical movement of the cross bar, for example, the vertical rod is composed of an outer rod and an inner rod movably sleeved in the outer rod, the inner rod is drawn out to a proper length, and then is positioned by using the positioning bolt on the wall of the outer rod, and the position adjustment of the cross bar can also be realized.
Figure 3 is an alternative embodiment of the linear guide of the present invention. In this embodiment, the linear guide is composed of the slider 111 and the guide rail 72. The slider 111 is disposed on the rear side surface c of the square bottom plate 11, and is T-shaped, and the end far away from the rear side surface c is wider, and the length can be set as required. The guide rail 72 is formed with a T-shaped runner fitting the slider 111. The straight-line guide piece with the structure has the advantages that after the sliding block 111 penetrates into the sliding groove of the guide rail 72 from the two ends of the guide rail 72, the guide rail 72 limits the antenna support body, and misoperation that the guide plane and the straight rod are not well attached in the above embodiment can be avoided.
The guide rail shown in fig. 3 is arranged on a longitudinal plane, which of course may also be arranged on a horizontal plane, and the structure of its cooperation with the slider is not limited to the embodiment disclosed in the present invention.
Claims (8)
1. The utility model provides an antenna support, its includes the body, the body includes base, pole setting, horizontal pole, the base bottom surface is equipped with the removal wheel, the pole setting is installed on the base, the horizontal pole is installed in the pole setting, and the position can reciprocate, its characterized in that, antenna support still includes the supplementary subassembly that removes, the supplementary subassembly that removes includes sharp guide piece and sucking disc, sharp guide piece comprises matched with guide piece A and guide piece B, the sucking disc is installed guide piece B below for guide piece B's detachable is fixed, guide piece A is installed on the base, during the use, the direction of sharp guide piece with the horizontal pole is parallel or perpendicular.
2. An antenna stand as claimed in claim 1, wherein, in use, the linear guide is oriented perpendicular to the cross-bar;
the cross bar is arranged on the vertical rod and has the following structure:
the upright stanchion is sleeved with a connecting block, a horizontal sleeve is arranged on the connecting block, and the cross rod is inserted in the sleeve and can move axially.
3. The antenna bracket as claimed in claim 2, wherein the cross bar is tubular, the front end pipe orifice is square, an adapter for connecting the single-bar antenna is detachably mounted on the cross bar, a screw hole is further formed in the pipe wall behind the adapter, and a first tightening bolt for fixing a single-bar antenna cable is connected to the screw hole.
4. The antenna support according to claim 3, wherein the front end of the cross bar is further provided with an opening for installing a butterfly antenna, the opening longitudinally penetrates through the upper side and the lower side of the tube wall of the cross bar, the antenna support further comprises an auxiliary installation block, the auxiliary installation block is provided with an opening, and is also connected with a second tightening bolt, the second tightening bolt is used for being sleeved at the penetrating end of the butterfly antenna after the upper end of the butterfly antenna penetrates through the butterfly antenna installation hole in the cross bar, and therefore the butterfly antenna can be hung on the cross bar.
5. An antenna stand according to claim 4, wherein the cross-bar is further provided with a cable tray having a height of more than 1 m.
6. An antenna stand according to claim 5, wherein the cable tray provides at least two cable positions of equal height.
7. The antenna stand according to claim 6, wherein the guide member A of the linear guide member is a vertical guide plane, the guide member B is a straight rod, and the guide plane is attached to a side surface of the straight rod;
or the guide piece A of the linear guide piece is a slide block, the guide piece B is a guide rail, and the slide block is detachably arranged on the guide rail.
8. The antenna stand according to claim 7, wherein the mounting structure of the suction cup and the guide member B is as follows:
the top end of the chassis is provided with a longitudinal screw hole, a support column is installed in the screw hole, a U-shaped fork opening is formed at the upper end of the support column, and the guide piece B is supported in the fork opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011417522.3A CN112730901B (en) | 2020-12-07 | 2020-12-07 | Antenna bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011417522.3A CN112730901B (en) | 2020-12-07 | 2020-12-07 | Antenna bracket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112730901A true CN112730901A (en) | 2021-04-30 |
| CN112730901B CN112730901B (en) | 2023-09-12 |
Family
ID=75598218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011417522.3A Active CN112730901B (en) | 2020-12-07 | 2020-12-07 | Antenna bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112730901B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114006168A (en) * | 2021-12-24 | 2022-02-01 | 中国人民解放军军事科学院战争研究院 | 5G communication antenna test rack and test method thereof |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB733010A (en) * | 1953-02-23 | 1955-07-06 | Wolsey Television Ltd | Improvements in television aerials and mountings therefor |
| US6232928B1 (en) * | 2000-02-03 | 2001-05-15 | Ems Technologies, Inc. | Antenna mounting bracket assembly |
| US6734830B1 (en) * | 2002-09-27 | 2004-05-11 | Comazell Bickham | Portable adjustable stand for satellite dish antennas |
| US20080258987A1 (en) * | 2005-06-28 | 2008-10-23 | Finmeccanica S.P.A. | Actuation Mechanism With Three-Dimensional Rectilinear Guide |
| CN102842745A (en) * | 2011-06-22 | 2012-12-26 | 鸿富锦精密工业（深圳）有限公司 | Antenna support |
| CN103116043A (en) * | 2013-01-25 | 2013-05-22 | 北京无线电计量测试研究所 | Crank and rocker combined type testing jig capable of adjusting elevation angles of antennas |
| JP2013201774A (en) * | 2013-06-04 | 2013-10-03 | Mitsubishi Electric Corp | Antenna device |
| CN103389393A (en) * | 2012-05-10 | 2013-11-13 | 鸿富锦精密工业（深圳）有限公司 | Antenna support |
| WO2016036951A1 (en) * | 2014-09-04 | 2016-03-10 | Commscope Technologies Llc | Azimuth and elevation angle pole mounting system for wireless communications base sites |
| CN205488464U (en) * | 2016-01-14 | 2016-08-17 | 昆明高胜科技有限公司 | Antenna support |
| CN106594022A (en) * | 2016-03-22 | 2017-04-26 | 北京卫星环境工程研究所 | Pressurizing device used for mounting complex curved surface heater of spacecraft |
| CN208596778U (en) * | 2018-09-19 | 2019-03-12 | 张洪武 | A kind of novel radio and television engineering antenna installation stent |
| CN211376916U (en) * | 2020-03-16 | 2020-08-28 | 西安优来测科技有限公司 | Movable antenna bracket for electromagnetic compatibility test |
| CN211978987U (en) * | 2020-03-16 | 2020-11-20 | 西安优来测科技有限公司 | Antenna bracket of horn antenna for electromagnetic compatibility test |
-
2020
- 2020-12-07 CN CN202011417522.3A patent/CN112730901B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB733010A (en) * | 1953-02-23 | 1955-07-06 | Wolsey Television Ltd | Improvements in television aerials and mountings therefor |
| US6232928B1 (en) * | 2000-02-03 | 2001-05-15 | Ems Technologies, Inc. | Antenna mounting bracket assembly |
| US6734830B1 (en) * | 2002-09-27 | 2004-05-11 | Comazell Bickham | Portable adjustable stand for satellite dish antennas |
| US20080258987A1 (en) * | 2005-06-28 | 2008-10-23 | Finmeccanica S.P.A. | Actuation Mechanism With Three-Dimensional Rectilinear Guide |
| CN102842745A (en) * | 2011-06-22 | 2012-12-26 | 鸿富锦精密工业（深圳）有限公司 | Antenna support |
| CN103389393A (en) * | 2012-05-10 | 2013-11-13 | 鸿富锦精密工业（深圳）有限公司 | Antenna support |
| CN103116043A (en) * | 2013-01-25 | 2013-05-22 | 北京无线电计量测试研究所 | Crank and rocker combined type testing jig capable of adjusting elevation angles of antennas |
| JP2013201774A (en) * | 2013-06-04 | 2013-10-03 | Mitsubishi Electric Corp | Antenna device |
| WO2016036951A1 (en) * | 2014-09-04 | 2016-03-10 | Commscope Technologies Llc | Azimuth and elevation angle pole mounting system for wireless communications base sites |
| CN205488464U (en) * | 2016-01-14 | 2016-08-17 | 昆明高胜科技有限公司 | Antenna support |
| CN106594022A (en) * | 2016-03-22 | 2017-04-26 | 北京卫星环境工程研究所 | Pressurizing device used for mounting complex curved surface heater of spacecraft |
| CN208596778U (en) * | 2018-09-19 | 2019-03-12 | 张洪武 | A kind of novel radio and television engineering antenna installation stent |
| CN211376916U (en) * | 2020-03-16 | 2020-08-28 | 西安优来测科技有限公司 | Movable antenna bracket for electromagnetic compatibility test |
| CN211978987U (en) * | 2020-03-16 | 2020-11-20 | 西安优来测科技有限公司 | Antenna bracket of horn antenna for electromagnetic compatibility test |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114006168A (en) * | 2021-12-24 | 2022-02-01 | 中国人民解放军军事科学院战争研究院 | 5G communication antenna test rack and test method thereof |
| CN114006168B (en) * | 2021-12-24 | 2022-03-08 | 中国人民解放军军事科学院战争研究院 | 5G communication antenna test rack and test method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112730901B (en) | 2023-09-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112730901A (en) | Antenna support | |
| CN212110123U (en) | Multifunctional sampling support | |
| CN214043965U (en) | Antenna support for auxiliary support of butterfly antenna and/or single rod antenna | |
| CN209792883U (en) | Handheld laser marking machine marking head fixing device | |
| CN109909579B (en) | Jet-suction type cutting torch cutting auxiliary device | |
| CN207840744U (en) | A kind of building perforating device based on crossbeam stabilization technique | |
| CN109520820B (en) | Electric platform lifting steel bar gauge length instrument | |
| CN211736397U (en) | Single-person operated actual measurement wall-mounting tool | |
| CN109459247A (en) | A kind of special vehicle structure and characteristic parameter measuring device | |
| CN208116842U (en) | A kind of removable bracket for electric hand drill of guide rail | |
| CN2652258Y (en) | Vertical pole height regulator for display shelf | |
| CN209484188U (en) | A kind of total station | |
| CN220226886U (en) | Adjusting device for building shield segment joint | |
| CN212332253U (en) | Positioning and marking device for PCB | |
| CN218147668U (en) | Stable supporting device for installation | |
| CN214818332U (en) | Windshield heating cauldron goes out cauldron checkout stand | |
| CN219934893U (en) | Electric scooter riser straightness check out test set that hangs down | |
| CN220418367U (en) | Measuring device in building indoor size | |
| CN219140252U (en) | Positioning device for detecting precise instrument | |
| CN216696420U (en) | Detection equipment for broadcasting and TV engineering | |
| CN219933614U (en) | Assembled survey and drawing spirit level support | |
| CN218411103U (en) | Utensil is examined to metal convenient to installation | |
| CN219915963U (en) | Pipeline detector convenient to maintain | |
| CN216681236U (en) | Radial drill is hole positioner for auto-parts processing | |
| CN219786641U (en) | Automatic drilling equipment for bicycle seat tube fittings |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |