CN214407488U - Rotatable telescopic tee joint prism group - Google Patents
Rotatable telescopic tee joint prism group Download PDFInfo
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- CN214407488U CN214407488U CN202120672205.XU CN202120672205U CN214407488U CN 214407488 U CN214407488 U CN 214407488U CN 202120672205 U CN202120672205 U CN 202120672205U CN 214407488 U CN214407488 U CN 214407488U
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Abstract
The utility model provides a rotatable telescopic tee bend prism group, including the main tributary vaulting pole, main tributary vaulting pole one side is equipped with a plurality of auxiliary stay poles, be equipped with first coupling mechanism between a plurality of auxiliary stay poles and the main tributary vaulting pole, first coupling mechanism one end and main tributary vaulting pole fixed connection, the other end is equipped with a plurality of pivoted auxiliary stay poles, be equipped with gliding assistant support bar on the main tributary vaulting pole, be equipped with second coupling mechanism between assistant support bar and the main tributary vaulting pole, assistant support bar passes through second coupling mechanism and main tributary vaulting pole sliding connection, assistant support bar tip is equipped with rotatable assistant prism, main tributary vaulting pole tip is equipped with the main prism. The telescopic adjustment is carried out through the bidirectional screw rod, so that the telescopic adjustment is more convenient and reliable; when the observation sight is obstructed, the auxiliary prism can be adjusted to the observable position of the total station, and the station does not need to be changed, so that the working efficiency can be greatly improved, the measurement precision is improved under the condition of large height difference measurement, and the device is suitable for various complex terrains and is suitable for popularization and use.
Description
Technical Field
The utility model relates to a field of prism observation, concretely relates to rotatable telescopic tee bend prism group.
Background
The prism is one of the measuring devices, and is commonly used for matching with a total station to perform measurement lofting and elevation measurement. Can receive sheltering from and the barrier in the measurement process, lead to measuring can not normally go on, need solve the problem through the commentaries on classics station, lead to work efficiency low, measurement error accumulation. In the elevation measurement process, under the condition of large observation height difference, the conventional prism is not convenient to measure due to small adjustable angle.
Chinese patent CN205138489U "a total powerstation prism that bubble was placed in middle can be finely tuned fast", involved and carried out simple support adjustment to the prism on the prism pole through flexible card and rotatory micromatic setting, but when this scheme can't solve the prism and receive sheltering from or the barrier, can not normally observe, still need solve through the commentaries on classics station.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides rotatable telescopic tee bend prism group, solves and to receive in the measurement process and shelter from and the barrier, leads to measuring normally to go on, needs come the solution problem through the commentaries on classics station, leads to work efficiency low, measuring error accumulation, and in the elevation measurement process, under the great condition of observation altitude difference, conventional prism is because but angle regulation is not convenient for the measuring problem for a short time.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the auxiliary supporting rod comprises a main supporting rod, a plurality of auxiliary supporting rods are arranged on one side of the main supporting rod, a first connecting mechanism is arranged between the auxiliary supporting rods and the main supporting rod, one end of the first connecting mechanism is fixedly connected with the main supporting rod, a plurality of rotating auxiliary supporting rods are arranged at the other end of the first connecting mechanism, a sliding auxiliary supporting rod is arranged on the main supporting rod, a second connecting mechanism is arranged between the auxiliary supporting rod and the main supporting rod, the auxiliary supporting rod is connected with the main supporting rod in a sliding mode through the second connecting mechanism, a rotatable auxiliary prism is arranged at the end part of the auxiliary supporting rod, and a main prism is arranged at the end part of the main supporting rod.
In a preferable scheme, a first bidirectional screw rod is arranged between a first main rod and a second main rod in the main support rod, and two ends of the first bidirectional screw rod respectively abut against the first main rod and the second main rod in threaded connection;
the first bidirectional screw rod is rotated to drive the first main rod and the second main rod to move relatively.
In the preferred scheme, first mobile jib bottom is equipped with first prick, and the tip threaded connection of first prick and first mobile jib has set firmly the circular level ware on the first mobile jib, and the top at the second mobile jib is established to the primary prism, the tip threaded connection of primary prism and second mobile jib.
In the preferred scheme, a first hoop in the first connecting mechanism is fixed on a first main rod in the main support rod through a bolt, the first hoop is a pair of mutually hinged semicircular hoop plates, a fixed shaft is fixedly arranged on the semicircular hoop plate on one side, and two connecting blocks which are mutually abutted to rotate are arranged on the fixed shaft.
In the preferred scheme, connecting block one end is equipped with the hinge ear, and the other end is equipped with the through-hole, and the through-hole of one end supports each other in two connecting blocks and leans on, is equipped with first locking bolt in the through-hole, first locking bolt and fixed axle one end threaded connection, and the through-hole that the tip of first locking bolt passed in two connecting blocks supports and leans on at fixed axle internal thread connection.
In the preferred scheme, a second bidirectional screw rod is arranged between a first auxiliary rod and a second auxiliary rod in the auxiliary supporting rod, and two ends of the second bidirectional screw rod are respectively abutted against the first auxiliary rod and the second auxiliary rod for internal thread connection;
the first auxiliary rod and the second auxiliary rod can be driven to move relatively by rotating the second bidirectional screw rod.
In the preferred scheme, the bottom of the first auxiliary rod is provided with a second taper, the second taper is in threaded connection with the end part of the first auxiliary rod, and the top of the second auxiliary rod is abutted against the hinge lug on one side of the connecting block in the first connecting mechanism to be hinged.
In the preferred scheme, a third two-way screw rod is arranged between a first auxiliary rod and a second auxiliary rod in the auxiliary support rod, two ends of the third two-way screw rod are respectively abutted against the first auxiliary rod and the second auxiliary rod to be in threaded connection, a pipe level is fixedly arranged on the first auxiliary rod, an auxiliary prism is arranged at the end part of the second auxiliary rod, and the auxiliary prism is in threaded connection with the end part of the second auxiliary rod;
the third bidirectional screw rod is rotated to drive the first auxiliary rod and the second auxiliary rod to move relatively.
In the preferred scheme, a second hoop in the second connecting mechanism is fixed on a second main rod in the main support rod through bolts, the second hoop is a pair of mutually hinged semicircular hoop plates, a fixed cylinder is fixedly arranged on the semicircular hoop plate on one side, a blind hole is arranged in the fixed cylinder, a threaded hole is arranged on one side of the fixed cylinder, and a second locking bolt in threaded connection is arranged in the threaded hole;
the end part of a first auxiliary support rod in the auxiliary support rod is abutted against the blind hole, and the second locking bolt is abutted against the first auxiliary rod, so that the first auxiliary rod is fixed in the fixing cylinder.
The utility model provides a rotatable telescopic three-way prism group, a main support rod, an auxiliary support rod and an auxiliary support rod are all telescopically regulated through a bidirectional screw rod, and the telescopic regulation is more convenient and reliable; when observing the sight and being obstructed, can adjust main tributary vaulting pole and vice bracing piece and let vice prism adjust to the observable position of total powerstation, need not to change the station to can improve work efficiency greatly, under the great condition of height finding difference, improve the measuring precision, be applicable to multiple complicated topography, be fit for using widely.
Drawings
The invention will be further explained with reference to the following figures and examples:
FIG. 1 is a side view of the overall structure of the present invention;
FIG. 2 is a front view of the overall structure of the present invention;
FIG. 3 is a top view of the overall structure of the present invention;
FIG. 4 is an exploded view of the overall structure of the present invention;
FIG. 5 is a front sectional view of the overall structure of the present invention;
fig. 6 is a partial enlarged view a of the present invention;
fig. 7 is a partial enlarged view b of the present invention;
in the figure: a main support bar 1; a first main bar 101; a second boom 102; a first bidirectional screw 103; a first spur 104; a circular level 105; a first connecting structure 2; a first hoop 201; a fixed shaft 202; a first locking bolt 203; a connection block 204; a hinge ear 205; a through-hole 206; a plurality of auxiliary support rods 3; a first auxiliary lever 301; a second auxiliary lever 302; a second bidirectional screw 303; a second burr 304; an auxiliary support rod 4; a first subcolumn 401; a second secondary lever 402; a third bidirectional screw 403; a tube level 404; a second connecting mechanism 5; a fixed cylinder 501; a second hoop 502; a blind hole 503; a threaded bore 504; a second locking bolt 505; a primary prism 6; and a secondary prism 7.
Detailed Description
Example 1
As shown in fig. 1 to 7, a rotatable telescopic three-way prism group includes a main support rod 1, a plurality of auxiliary support rods 3 are disposed on one side of the main support rod 1, a first connecting mechanism 2 is disposed between the plurality of auxiliary support rods 3 and the main support rod 1, one end of the first connecting mechanism 2 is fixedly connected to the main support rod 1, the other end of the first connecting mechanism is provided with a plurality of rotating auxiliary support rods 3, a sliding auxiliary support rod 4 is disposed on the main support rod 1, a second connecting mechanism 5 is disposed between the auxiliary support rod 4 and the main support rod 1, the auxiliary support rod 4 is slidably connected to the main support rod 1 through the second connecting mechanism 5, a rotatable auxiliary prism 7 is disposed at an end of the auxiliary support rod 4, and a main prism 6 is disposed at an end of the main support rod 1. From this structure, main tributary vaulting pole 1 is triangle-shaped with a plurality of auxiliary stay pole 3 and inserts on the place of awaiting measuring, it is fixed more firm stable, a plurality of auxiliary stay poles 3 accessible first coupling mechanism 2 rotate with main tributary vaulting pole 1 and adjust, thereby can contract or expand different angles, so that it is fixed with the support to fold the transportation, the vice prism 7 of 4 tip of vice bracing piece is connected with main tributary vaulting pole 1 through second coupling mechanism 5, adopt vice prism 7 and the combined use of main prism 6, can adjust vice prism 7 when 6 sighs of main prism are sheltered from by the barrier and let it avoid the barrier level in total station appearance observation position, thereby need not to change the station, work efficiency and operating mass are greatly improved.
In a preferable scheme, a first bidirectional screw 103 is arranged between a first main rod 101 and a second main rod 102 in the main support rod 1, and two ends of the first bidirectional screw 103 respectively abut against the first main rod 101 and the second main rod 102 for internal thread connection;
the first bidirectional screw 103 is rotated to drive the first main rod 101 and the second main rod 102 to move relatively. From this structure, the screw thread direction of turning is opposite at first two-way lead screw 103 both ends to can drive first mobile jib 101 and the relative movement of second mobile jib 102 with it meshing when rotating first two-way lead screw 103 and carry out flexible regulation, its accommodation process is reliable and stable, and the middle part of first two-way lead screw 103 also has manual regulation position, and this position has the annular knurl antiskid to handle, and the staff rotates through holding manual regulation position, and it is more convenient to the flexible regulation of main tributary vaulting pole 1.
In a preferable scheme, a first stabbing 104 is arranged at the bottom of the first main rod 101, the first stabbing 104 is in threaded connection with the end of the first main rod 101, a circular level 105 is fixedly arranged on the first main rod 101, the main prism 6 is arranged at the top of the second main rod 102, and the main prism 6 is in threaded connection with the end of the second main rod 102. From this structure, first mobile jib 101 bottom can be more convenient insert the ground that awaits measuring as supporting through first prick 104, and first prick 104 can demolish the installation through threaded connection simultaneously, and portable avoids hindering the people, and circle level 105 is as the location benchmark of first mobile jib 101, makes the bubble in the circle level 105 placed in the middle through adjusting a plurality of auxiliary stay poles 3, and the installation of 6 installation dismantlements of main prism of screw thread installation is more convenient.
In the preferred scheme, a first hoop 201 in the first connecting mechanism 2 is fixed on the first main rod 101 in the main support rod 1 through a bolt, the first hoop 201 is a pair of mutually hinged semicircular hoop plates, a fixed shaft 202 is fixedly arranged on the semicircular hoop plate on one side, and two mutually abutted rotating connecting blocks 204 are arranged on the fixed shaft 202. From this structure, first staple bolt 201 inboard is equipped with anti-skidding rubber, and the bolt supports the anti-skidding rubber of first staple bolt 201 inboard to lean on first mobile jib 101 to fix, and the installation is dismantled simple and conveniently.
In a preferable scheme, one end of each connecting block 204 is provided with a hinge lug 205, the other end of each connecting block is provided with a through hole 206, the through holes 206 at one ends of the two connecting blocks 204 are abutted against each other, a first locking bolt 203 is arranged in each through hole 206, the first locking bolt 203 is in threaded connection with one end of the fixed shaft 202, and the end part of the first locking bolt 203 penetrates through the through holes 206 in the two connecting blocks 204 and abuts against the inner thread of the fixed shaft 202. From this structure, the through-hole 206 position of two connecting blocks 204 one side is crisscross to lean on together from top to bottom, then passes and leans on to connect on fixed axle 202 through first locking bolt 203, can make two connecting blocks 204 fixed when locking first locking bolt 203, can make two connecting blocks 204 not hard up rotate when loosening first locking bolt 203, and the installation is adjusted conveniently reliably.
In a preferable scheme, a second bidirectional screw rod 303 is arranged between a first auxiliary rod 301 and a second auxiliary rod 302 in the auxiliary support rod 3, and two ends of the second bidirectional screw rod 303 respectively abut against the first auxiliary rod 301 and the second auxiliary rod 302 in a threaded connection;
the rotation of the second bidirectional screw 303 can drive the first auxiliary rod 301 and the second auxiliary rod 302 to move relatively. With the structure, the screw thread turning directions of the two ends of the second bidirectional screw rod 303 are opposite, so that the first auxiliary rod 301 and the second auxiliary rod 302 which are meshed with the second bidirectional screw rod 303 can be driven to move relatively to be adjusted in a telescopic mode when the second bidirectional screw rod 303 is rotated, the adjusting process is stable and reliable, the middle of the second bidirectional screw rod 303 is also provided with a manual adjusting part, the manual adjusting part is knurled in an anti-skidding mode, a worker can rotate by holding the manual adjusting part, and the telescopic adjustment of the auxiliary support rod 3 is more convenient.
Preferably, the bottom of the first auxiliary rod 301 is provided with a second taper 304, the second taper 304 is screwed with the end of the first auxiliary rod 301, and the top of the second auxiliary rod 302 is hinged against the hinge lug 205 on the side of the connecting block 204 in the first connecting mechanism 2. From this structure, first auxiliary rod 301 bottom is inserted or is leaned on the ground that awaits measuring through second stinger 304, and threaded connection's second stinger 304 is convenient for install and is dismantled, avoids the transportation to hinder the people, and second auxiliary rod 302 articulates in connecting block 204 in first coupling mechanism 2 to be convenient for two second auxiliary rod 302's angle modulation, so that two second auxiliary rod 302 and main tributary vaulting pole 1 are triangular stable bearing structure.
In a preferable scheme, a third two-way screw 403 is arranged between a first auxiliary rod 401 and a second auxiliary rod 402 in the auxiliary support rod 4, two ends of the third two-way screw 403 are respectively abutted against the first auxiliary rod 401 and the second auxiliary rod 402 to be in threaded connection, a pipe level 404 is fixedly arranged on the first auxiliary rod 401, an auxiliary prism 7 is arranged at the end part of the second auxiliary rod 402, and the auxiliary prism 7 is in threaded connection with the end part of the second auxiliary rod 402;
the first sub-rod 401 and the second sub-rod 402 can be driven to move relatively by rotating the third bidirectional screw 403. With the structure, the screw threads at the two ends of the third bidirectional screw 403 are opposite in turning direction, so that the first auxiliary rod 401 and the second auxiliary rod 402 which are meshed with the third bidirectional screw 403 can be driven to move relatively to stretch and retract when the third bidirectional screw 403 is rotated, the adjusting process is stable and reliable, the middle part of the third bidirectional screw 403 is also provided with a manual adjusting part, the manual adjusting part is knurled for anti-skidding treatment, and a worker rotates by holding the manual adjusting part, so that the stretching and retracting adjustment of the auxiliary support rod 4 is more convenient. The pipe level 404 is a horizontal reference for the auxiliary support rod 4, so that the auxiliary support rod 4 is in a horizontal state to enable observation to be more accurate, and the auxiliary prism 7 connected by screw threads is convenient and quick to mount and dismount.
In a preferable scheme, a second hoop 502 in the second connecting mechanism 5 is fixed on the second main rod 102 in the main support rod 1 through bolts, the second hoop 502 is a pair of mutually hinged semicircular hoop plates, a fixed cylinder 501 is fixedly arranged on the semicircular hoop plate at one side, a blind hole 503 is arranged in the fixed cylinder 501, a threaded hole 504 is arranged at one side of the fixed cylinder 501, and a second locking bolt 505 in threaded connection is arranged in the threaded hole 504;
the end of the first sub-rod 401 of the sub-support rod 4 abuts against the blind hole 503, and the second locking bolt 505 abuts against the first sub-rod 401, so that the first sub-rod 401 is fixed in the fixed cylinder 501. With the structure, the first auxiliary rod 401 in the auxiliary support rod 4 abuts against the blind hole 503 and abuts against the first auxiliary rod 401 through the threaded hole 504 by the second locking bolt 505 to fix the first auxiliary rod, the anti-slip rubber is arranged on the inner side of the second hoop 502, the bolt fixes the anti-slip rubber on the inner side of the second hoop 502 on the main support rod 1, and the connection, fixation and adjustment are more stable and firm.
Example 2
Further explained with reference to embodiment 1, as shown in fig. 1 to 7, the main support bar 1 and the auxiliary support bar 3 are inserted into the point to be measured in a triangular shape; the first auxiliary rod 301 and the second auxiliary rod 302 move relatively to extend and retract by adjusting the second bidirectional screw rod 303 in the two auxiliary support rods 3, so that the main support rod 1 is in a vertical state, and the bubble in the circular level 105 is centered by observing the circular level 105 on the main support rod 1 to perform corresponding adjustment; adjusting a first bidirectional screw 103 in the main support rod 1 to enable the first main rod 101 and the second main rod 102 to move relatively to extend and retract, so that the main prism 6 at the end of the second main rod 102 is at a proper height; the auxiliary support rod 4 is fixed on the second main rod 102 through the second connecting mechanism 5, and the height of the second hoop 502 in the second connecting mechanism 5 on the second main rod 102 is adjusted, so that the position of the auxiliary prism 7 at the end of the auxiliary support rod 4 is changed to be at a proper height; adjusting a third two-way screw 403 in the secondary support rod 4 to enable the first secondary rod 401 and the second secondary rod 402 to move relatively to extend and retract, so that the secondary prism 7 at the end of the second secondary rod 402 is in a proper position, and a prism body in the secondary prism 7 can rotate by 360 degrees; when the sight line of the sighting main prism 6 is blocked, the telescopic main supporting rod 1 and the auxiliary supporting rod 4 are adjusted, so that the lens angle of the auxiliary prism 7 is adjusted, the auxiliary prism 7 is adjusted to the position where the instrument has observation conditions, and effective observation is carried out under the condition that the pipe level 404 in the auxiliary supporting rod 4 is horizontal.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be considered as limitations of the present invention, and the protection scope of the present invention should be defined by the technical solutions described in the claims, and includes equivalent alternatives of technical features in the technical solutions described in the claims. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.
Claims (9)
1. Rotatable telescopic tee bend prism group, characterized by: including main tributary vaulting pole (1), main tributary vaulting pole (1) one side is equipped with a plurality of auxiliary stay pole (3), be equipped with first coupling mechanism (2) between a plurality of auxiliary stay pole (3) and main tributary vaulting pole (1), first coupling mechanism (2) one end and main tributary vaulting pole (1) fixed connection, the other end is equipped with a plurality of pivoted auxiliary stay poles (3), be equipped with gliding auxiliary stay pole (4) on main tributary vaulting pole (1), be equipped with second coupling mechanism (5) between auxiliary stay pole (4) and main tributary vaulting pole (1), auxiliary stay pole (4) are through second coupling mechanism (5) and main tributary vaulting pole (1) sliding connection, auxiliary stay pole (4) tip is equipped with rotatable auxiliary prism (7), main tributary vaulting pole (1) tip is equipped with main prism (6).
2. The rotatable telescopic triple prism assembly of claim 1, wherein: a first bidirectional screw rod (103) is arranged between a first main rod (101) and a second main rod (102) in the main support rod (1), and two ends of the first bidirectional screw rod (103) respectively abut against the first main rod (101) and the second main rod (102) and are in threaded connection;
the first bidirectional screw rod (103) is rotated to drive the first main rod (101) and the second main rod (102) to move relatively.
3. The rotatable telescopic triple prism assembly of claim 2, wherein: first mobile jib (101) bottom is equipped with first prick (104), and the tip threaded connection of first prick (104) and first mobile jib (101) has set firmly circle level gauge (105) on first mobile jib (101), and the top at second mobile jib (102) is established in main prism (6), the tip threaded connection of main prism (6) and second mobile jib (102).
4. The rotatable telescopic triple prism assembly of claim 1, wherein: first staple bolt (201) in first coupling mechanism (2) pass through the bolt fastening on first mobile jib (101) in main tributary vaulting pole (1), and first staple bolt (201) are a pair of mutual articulated semicircle hoop board, have set firmly fixed axle (202) on the semicircle hoop board of one side, are equipped with two on fixed axle (202) and lean on pivoted connecting block (204) each other.
5. The rotatable telescopic triple prism assembly of claim 4, wherein: connecting block (204) one end is equipped with hinge ear (205), and the other end is equipped with through-hole (206), and through-hole (206) of one end support each other in two connecting blocks (204) and lean on, is equipped with first locking bolt (203) in through-hole (206), and first locking bolt (203) and fixed axle (202) one end threaded connection, and through-hole (206) that the tip of first locking bolt (203) passed in two connecting blocks (204) support and lean on fixed axle (202) internal thread connection.
6. The rotatable telescopic triple prism assembly of claim 1, wherein: a second bidirectional screw rod (303) is arranged between the first auxiliary rod (301) and the second auxiliary rod (302) in the auxiliary supporting rod (3), and two ends of the second bidirectional screw rod (303) are respectively abutted against the first auxiliary rod (301) and the second auxiliary rod (302) to be in threaded connection;
the first auxiliary rod (301) and the second auxiliary rod (302) can be driven to move relatively by rotating the second bidirectional screw rod (303).
7. The rotatable telescopic triple prism assembly of claim 6, wherein: the bottom of the first auxiliary rod (301) is provided with a second taper (304), the second taper (304) is in threaded connection with the end of the first auxiliary rod (301), and the top of the second auxiliary rod (302) abuts against the hinge lug (205) on one side of the connecting block (204) in the first connecting mechanism (2) to be hinged in.
8. The rotatable telescopic triple prism assembly of claim 1, wherein: a third bidirectional screw rod (403) is arranged between a first auxiliary rod (401) and a second auxiliary rod (402) in the auxiliary support rod (4), two ends of the third bidirectional screw rod (403) are respectively abutted against the first auxiliary rod (401) and the second auxiliary rod (402) to be in internal thread connection, a pipe level (404) is fixedly arranged on the first auxiliary rod (401), an auxiliary prism (7) is arranged at the end part of the second auxiliary rod (402), and the auxiliary prism (7) is in threaded connection with the end part of the second auxiliary rod (402);
the third bidirectional screw rod (403) is rotated to drive the first auxiliary rod (401) and the second auxiliary rod (402) to move relatively.
9. The rotatable telescopic triple prism assembly of claim 1, wherein: a second hoop (502) in the second connecting mechanism (5) is fixed on a second main rod (102) in the main support rod (1) through bolts, the second hoop (502) is a pair of mutually hinged semicircular hoop plates, a fixed cylinder (501) is fixedly arranged on the semicircular hoop plate on one side, a blind hole (503) is formed in the fixed cylinder (501), a threaded hole (504) is formed in one side of the fixed cylinder (501), and a second locking bolt (505) in threaded connection is arranged in the threaded hole (504);
the end part of a first auxiliary rod (401) in the auxiliary support rod (4) abuts against the blind hole (503), and a second locking bolt (505) abuts against the first auxiliary rod (401), so that the first auxiliary rod (401) is fixed in the fixed cylinder (501).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120672205.XU CN214407488U (en) | 2021-04-01 | 2021-04-01 | Rotatable telescopic tee joint prism group |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120672205.XU CN214407488U (en) | 2021-04-01 | 2021-04-01 | Rotatable telescopic tee joint prism group |
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| CN214407488U true CN214407488U (en) | 2021-10-15 |
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| CN202120672205.XU Active CN214407488U (en) | 2021-04-01 | 2021-04-01 | Rotatable telescopic tee joint prism group |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217755A (en) * | 2021-04-01 | 2021-08-06 | 中交第二航务工程局有限公司 | Rotatable telescopic three-way prism group and use method thereof |
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2021
- 2021-04-01 CN CN202120672205.XU patent/CN214407488U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217755A (en) * | 2021-04-01 | 2021-08-06 | 中交第二航务工程局有限公司 | Rotatable telescopic three-way prism group and use method thereof |
| CN113217755B (en) * | 2021-04-01 | 2022-07-15 | 中交第二航务工程局有限公司 | Rotatable telescopic three-way prism group and use method thereof |
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