Rotatable laser scanning target device

Abstract

The invention relates to the technical field of target devices, and discloses a rotatable laser scanning target device which comprises a support assembly, a target fixing seat and a target assembly, the support assembly comprises a mounting cylinder, a mounting cavity is formed in the mounting cylinder, the target fixing seat is rotatably mounted at an opening in the upper end of the mounting cavity, and a locking assembly is arranged in the mounting cavity; a drill rod is arranged in the mounting cavity, a fixing assembly is arranged at the lower end of the mounting cavity, a driving assembly is arranged outside the mounting cylinder and located at the lower end, and the driving assembly is used for driving the fixing assembly to unlock the drill rod and synchronously driving the locking assembly to unlock the target fixing seat when the driving assembly is used for driving the fixing assembly to unlock the drill rod. By means of the structure, the driving assembly can drive the locking assembly to fix and unfix the rotating target fixing base and drive the fixing assembly to fix and unfix the mounting cylinder on the drill rod, and then rotation of the target assembly and height adjustment of the mounting cylinder on the drill rod are well achieved; therefore, the applicability of the target device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of target devices, and in particular to a rotatable laser scanning target device. Background Art

[0002] Three-dimensional laser scanning technology has developed rapidly. Due to its high efficiency, non-contact and high-precision characteristics of acquiring multivariate data such as point cloud coordinates, color and reflectivity of the scanned object surface, it has replaced many traditional single-point coordinate measurement methods. The multi-station original point cloud data obtained by three-dimensional laser scanning requires common features as splicing primitives when splicing and orienting. Among them, scanning targets are the most commonly used common features. Common scanning targets include spherical targets and black and white chessboard-shaped plane targets. Among them, spherical targets are mostly plastic spheres with good reflection, and black and white chessboard-shaped plane targets are mostly metal sheets coated with a variety of high-contrast reflective coatings. Existing spherical targets or plane targets are all mounted on the bracket through a prism base to fix the target for use.

[0003] For example, a target device for three-dimensional laser scanning disclosed in the patent with announcement number CN218822163U can realize the conversion between a plane target and a spherical target, integrating the spherical target and the plane target into one, thus overcoming the inconvenience of carrying two targets separately; however, when the target device is actually used, the connecting rod is threadedly connected to the lower end of the target holder through a magnetic nut, thereby making it difficult for the target to be rotated and installed on the bracket, thereby affecting its applicability in actual use. Summary of the invention

[0004] The object of the present invention is to provide a rotatable laser scanning target device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A rotatable laser scanning target device comprises a bracket assembly and a target fixing seat rotatably arranged on the bracket assembly, a target assembly is arranged on the target fixing seat, the target assembly comprises a spherical prism and an annular plate sleeved on the outside of the spherical prism through a connecting rod, and the spherical prism is fixedly connected to the target fixing seat through a fixing seat;

[0007] The bracket assembly includes a mounting tube, a mounting cavity with openings at both ends is provided in the mounting tube, a target fixing seat is rotatably installed at the upper end opening of the mounting cavity, and a locking assembly for locking the target fixing seat is provided in the mounting cavity;

[0008] A drill rod is provided in the installation cavity, which is slidable and extends from the lower end. A fixing assembly for fixing the drill rod is provided at the lower end of the installation cavity. A driving assembly is provided outside the installation tube and at the lower end. The driving assembly is used to drive the fixing assembly to release the fixation of the drill rod and synchronously drive the locking assembly to release the lock of the target fixing seat.

[0009] A movable cavity opening downward is provided in the drill rod, a pointed cone which can be received in the movable cavity is provided in the movable cavity through a pushing member, a matching member matching with the fixing assembly is provided on the pushing member, and when the fixing assembly fixes the drill rod, the matching member is driven to push the pointed cone out of the movable cavity.

[0010] Furthermore, a mounting ring is provided in the mounting cavity, and the target fixing seat is rotatably mounted on the mounting ring through a rotating rod;

[0011] The locking assembly includes a locking plate that can be raised and lowered on a rotating rod, and needles are evenly distributed on the upper side of the locking plate. The rotating rod located between the mounting ring and the locking plate is provided with a first spring for pushing the locking plate toward the target fixing seat so that the needles penetrate into the target fixing seat.

[0012] Furthermore, a fixing hole is relatively provided on the outer side wall of the drill rod and located at the upper end portion, and a plurality of fixing holes are provided along the axial direction of the drill rod; the fixing assembly includes a fixing cylinder relatively arranged outside the mounting cylinder, a fixing cavity opening outward is provided in the fixing cylinder, a fixing rod which can penetrate the mounting cylinder and extend into the mounting cavity is provided in the fixing cavity, a second spring which is sleeved outside the fixing rod is provided in the fixing cavity, the second spring is used to drive the fixing rod to retract, a driving assembly is provided at the opening of the fixing cavity, and the driving assembly is used to drive the fixing rod to extend into the corresponding fixing hole.

[0013] Furthermore, a first limiting groove is relatively provided on the side wall of the installation cavity along the axial direction thereof, and a first limiting block is provided on the side wall of the drill rod and is located and slidable in the first limiting groove.

[0014] Furthermore, a sliding groove is provided on the side wall of the installation cavity along its axial direction, and a blind hole is provided on the side wall of the installation ring corresponding to the sliding groove. The locking assembly includes a locking slider slidably arranged in the sliding groove, and a locking rod extending into the corresponding blind hole is provided at the upper end of the locking slider. A notch is provided on the fixed rod along its axial direction for the corresponding lower end of the locking slider to pass through, and a guide groove is provided on the side wall opposite to the notch. A sliding column extending into the guide groove and sliding is provided on the side wall of the lower end of the locking slider. The fixing rod extends into the fixing hole to drive the sliding column to slide along the guide groove to realize the upward movement of the locking slider.

[0015] Furthermore, a plurality of ratchet grooves are evenly arranged on the side wall of the fixed cavity along its circumference, a first sliding groove and a second sliding groove communicating with the opening of the fixed cavity are arranged at the top of the ratchet groove along the axial direction of the fixed cylinder, the first sliding groove and the second sliding groove are arranged at intervals, the depth of the first sliding groove is greater than the depth of the second sliding groove, and a blocking ring for blocking the first sliding groove and the second sliding groove is arranged at the opening of the fixed cavity;

[0016] A rotatable swivel is provided at the end of the fixing rod facing the opening of the fixing cavity, and a push rod which can be extended into the first sliding groove is provided on the swivel, and a driving inclined surface matching with the ratchet groove is provided on the push rod, and a driving assembly includes a pressing cylinder which can be slidably arranged at the opening of the fixing cavity, and a push rod which slides in the first sliding groove and the second sliding groove is evenly distributed on the side wall of the pressing cylinder, and an extrusion inclined surface matching with the inclined surface is provided on the side wall of the push rod, and the pressing cylinder is used to drive the push rod to make the extrusion inclined surface squeeze the driving inclined surface, so as to realize the switching of the push rod between adjacent ratchet grooves.

[0017] Furthermore, a fixed ring is provided in the movable cavity, and the pushing member includes a sliding rod slidably arranged in the movable cavity, and a connecting rod is provided at the lower end of the sliding rod, which passes through the fixed ring and is connected to the pointed cone. The connecting rod is sleeved with a third spring for pushing the sliding rod upward to drive the pointed cone to retract into the movable cavity.

[0018] Furthermore, the matching part includes a matching cavity corresponding to the fixing hole arranged at the upper end of the sliding rod, a protrusion is provided at the center position of the matching cavity, and guide inclined surfaces matching the corresponding fixing rod are relatively provided on both sides of the protrusion. The fixing rod squeezes the guide inclined surface to realize the downward movement of the sliding rod.

[0019] Furthermore, a second limiting groove is relatively provided on the side wall of the movable cavity along its axial direction, and a second limiting block is provided on the side wall of the sliding rod and slides in the second limiting groove.

[0020] Furthermore, a prismatic reflective film is attached to the surface of the annular plate, and cross marks are provided on the surface of the prismatic reflective film at intervals of 60 degrees.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention, through the arrangement of the driving assembly, the locking assembly and the fixing assembly, enables the driving assembly to drive the locking assembly to fix and release the rotating target fixing seat, and at the same time, can drive the fixing assembly to fix and release the mounting tube on the drill rod, thereby better realizing the rotation of the target assembly and the height adjustment of the mounting tube on the drill rod, thereby improving the applicability of the target device.

[0023] 2. The present invention can drive the extension and retraction of the fixing rod in the fixing cavity by synchronously pressing the pressing cylinders on both sides of the installation cylinder, so as to rotate the target assembly and adjust the height of the installation cylinder on the drill rod, making the operation simple and convenient, and facilitating practical use.

[0024] 3. The present invention retracts the pointed cone in the movable cavity so that the pointed cone can be retracted when the drill rod is not in use to prevent it from extending and injuring the operator. When the drill rod is installed in the installation tube, the fixed rod can extend into the matching cavity, thereby driving the pointed cone to extend out of the drill rod so that the drill rod can be plugged in, which is convenient for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of a rotatable laser scanning target device in the present invention.

[0026] Figure 2 It is a schematic diagram of the structure of the bracket assembly in the present invention.

[0027] Figure 3 It is a cross-sectional schematic diagram of a rotatable laser scanning target device in the present invention.

[0028] Figure 4 for Figure 3 Enlarged schematic diagram of part A.

[0029] Figure 5 for Figure 3 Schematic diagram of the enlarged portion B.

[0030] Figure 6 It is a schematic diagram of the half-section structure of the installation tube in the present invention.

[0031] Figure 7 It is a schematic diagram of the half-section structure of the driving component in the present invention.

[0032] Figure 8 It is a schematic diagram of the half-section structure of the fixed cylinder in the present invention.

[0033] Fig. 9 for Figure 3 Enlarged schematic diagram of part C.

[0034] Fig.10 It is a structural schematic diagram of the drill rod in the present invention.

[0035] Fig.11 It is a schematic diagram of the connection structure between the pointed cone and the sliding rod in the present invention.

[0036] The meanings of the numbers in the figure are as follows: 10, target fixing seat; 20, bracket assembly; 21, mounting tube; 22, drill rod; 23, pointed cone; 30, target assembly; 31, spherical prism; 32, connecting rod; 33, annular plate; 34, fixing seat; 35, cross mark; 310, locking slider; 320, sliding rod; 401, mounting cavity; 411, movable cavity; 420, mounting ring; 430, rotating rod; 440, locking plate; 441, pricking needle; 450, first spring; 501, fixing hole; 51 1. Fixed cavity; 520. Fixed rod; 530. Second spring; 540. Blocking ring; 550. Rotating ring; 560. Pressing cylinder; 570. Matching cavity; 571. Bump; 572. Guide slope; 601. First limiting groove; 602. Slide groove; 611. Blind hole; 701. Notch; 702. Guide groove; 710. Push rod; 720. Push rod; 801. Ratchet groove; 802. First sliding groove; 803. Second sliding groove; 910. Fixed ring; 921. Connecting rod; 930. Third spring. DETAILED DESCRIPTION

[0037] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only for explaining the present invention and are not intended to limit it.

[0038] The following is combined with Figure 1-Figure 11 This embodiment is described in further detail.

[0039] like Figure 1-3 As shown, a rotatable laser scanning target device in this embodiment includes a bracket assembly 20 and a target fixing seat 10 rotatably arranged on the bracket assembly 20, a target assembly 30 is arranged on the target fixing seat 10, and the target assembly 30 includes a spherical prism 31 and an annular plate 33 sleeved on the outside of the spherical prism 31 through a connecting rod 32, and the spherical prism 31 is fixedly connected to the target fixing seat 10 through a fixing seat 34;

[0040] In this embodiment, the target assembly 30 is rotatably mounted on the bracket assembly 20 through the target fixing seat 10, so that the bracket assembly 20 can support the target assembly 30, and at the same time, the target assembly 30 can be rotated at any angle, so as to facilitate the actual use of the target device;

[0041] Among them, Figure 1As shown, the spherical prism 31 is of an existing structure, which is fixedly installed on the target fixing seat 10 through a fixing seat 34, wherein the annular plate 33 is arranged outside the spherical prism 31 through a connecting rod 32. When it is actually used, a prismatic reflective film is pasted on one side surface of the annular plate 33, and its material is PET. The geometric center of the annular prismatic reflective film surface coincides with the center of the central spherical prism 31, and cross marks 35 are arranged at intervals of 60° on the surface of the prismatic reflective film, and digital markings are made; therefore, there are two methods for the target device in this embodiment to obtain the target coordinates, the first is to directly measure the coordinates of the central spherical prism 31, and the second is to measure any three of the six cross marks 35 to calculate the coordinates of the target center, that is, the coordinates of the central spherical prism 31, and different measurement methods can be combined with different point cloud registration methods, thereby improving the applicability of the target device;

[0042] Combination Figure 4-6 As shown, in this embodiment, the bracket assembly 20 includes a mounting tube 21, and a mounting cavity 401 with openings at both ends is provided in the mounting tube 21. The target fixing seat 10 is rotatably installed at the upper end opening of the mounting cavity 401, and a locking assembly for locking the target fixing seat 10 is provided in the mounting cavity 401;

[0043] A drill rod 22 is provided in the installation cavity 401, which is slidable and extends from the lower end. A fixing assembly for fixing the drill rod 22 is provided at the lower end of the installation cavity 401. A driving assembly is provided outside the installation tube 21 and at the lower end. The driving assembly is used to drive the fixing assembly to release the fixation of the drill rod 22, and synchronously drive the locking assembly to release the lock of the target fixing seat 10.

[0044] A movable cavity 411 opening downward is provided in the drill rod 22, and a pointed cone 23 which can be received in the movable cavity 411 is provided in the movable cavity 411 through a pushing member. A matching member which matches with the fixing component is provided on the pushing member. When the fixing component fixes the drill rod 22, the matching member is driven to push the pointed cone 23 out of the movable cavity 411.

[0045] In this embodiment, the locking assembly can be used to fix the target fixing seat 10 rotatably mounted at the upper end of the mounting tube 21, thereby fixing the target assembly 30 thereon for use;

[0046] The upper end of the drill rod 22 is fixedly installed in the installation cavity 401 through a fixing assembly, thereby realizing the fixing of the installation tube 21 at the upper end of the drill rod 22, so that in actual use, the target assembly 30 can be used in the field by plugging the lower end of the drill rod 22 into the ground in the field; when the target device needs to be used indoors, the lower end of the drill rod 22 can be inserted into a counterweight block (not shown in the figure), wherein the counterweight block is made of an outer shell and cement or clay filled in the outer shell, and an insertion hole is reserved on the outer shell for the lower end of the drill rod 22 to extend into;

[0047] In this embodiment, the drive assembly is arranged so that in actual use, the drive assembly can be used to drive the locking assembly to release the lock of the target fixing seat 10, and at the same time, the fixing assembly can be driven to release the fixation of the drill rod 22. At this time, the rotation adjustment of the target fixing seat 10 and the lifting adjustment of the mounting tube 21 on the drill rod 22 can be performed. After the adjustment of the two is completed, the drive assembly can also drive the locking assembly to lock the target fixing seat 10, and at the same time, the fixing assembly can be driven to fix the mounting tube 21 on the drill rod 22, so that the target device can be used;

[0048] In this embodiment, combined with Figure 10-11 As shown, by setting the pointed cone 23, the pointed cone 23 is extended out of the lower end of the drill rod 22, so that the lower end of the drill rod 22 is inserted into the ground in the field. It should be noted that in order to facilitate the transportation and carrying of the target device, the drill rod 22 needs to be separated from the installation tube 21. At this time, in order to prevent the pointed cone 23 from extending when the drill rod 22 is not in use and causing it to stab the operator, the pusher is set so that when the drill rod 22 is separated from the installation cavity 401, that is, the drill rod 22 is separated from the installation tube 21, the pusher assembly drives the pointed cone 23 to retract into the active cavity 411 so that it is stored;

[0049] Among them, through the setting of the matching piece, when the drill rod 22 is installed in the installation cavity 401 through the fixing assembly, the fixing assembly can drive the matching piece to automatically extend the lower end of the cone 23, thereby facilitating the insertion of the drill rod 22.

[0050] Combination Figure 4 As shown, in this embodiment, a mounting ring 420 is provided in the mounting cavity 401, and the target fixing seat 10 is rotatably mounted on the mounting ring 420 through a rotating rod 430, wherein the upper end of the rotating rod 430 is fixedly connected to the lower side of the target fixing seat 10, and the lower end of the rotating rod 430 is arranged through the mounting ring 420, and nuts located on both sides of the mounting ring 420 are threadedly connected to the rotating rod 430, thereby preferably realizing the rotatable installation of the target fixing seat 10 at the upper end of the mounting tube 21;

[0051] The locking assembly includes a locking plate 440 that can be raised and lowered on the rotating rod 430, and needles 441 are evenly distributed on the upper side of the locking plate 440. The rotating rod 430 located between the mounting ring 420 and the locking plate 440 is provided with a first spring 450 for pushing the locking plate 440 to move toward the target fixing seat 10 so that the needles 441 penetrate into the target fixing seat 10.

[0052] In this embodiment, the locking plate 440 is slidably installed in the installation cavity 401 above the installation ring 420. The upper end of the first spring 450 abuts against the locking plate 440, and the other end abuts against the installation ring 420. The locking plate 440 is pushed upward by the first spring 450, so that the piercing needle 441 on it penetrates into the lower side surface of the target fixing seat 10, thereby better fixing the target fixing seat 10; when it is actually used, the driving component can drive the locking plate 440 to move downward, so that the piercing needle 441 is separated from the lower side surface of the target fixing seat 10, and the locking fixation of the target fixing seat 10 is released.

[0053] Combination Figure 5 As shown, in this embodiment, the outer side wall of the drill rod 22 is relatively provided with a fixing hole 501 at the upper end portion, and a plurality of fixing holes 501 are provided along the axial direction of the drill rod 22; the fixing assembly includes a fixing cylinder 24 relatively provided outside the mounting cylinder 21, and a fixing cavity 511 opening outward is provided in the fixing cylinder 24, and a fixing rod 520 which can penetrate the mounting cylinder 21 and extend into the mounting cavity 401 is provided in the fixing cavity 511, and a second spring 530 which is sleeved on the outside of the fixing rod 520 is provided in the fixing cavity 511, and the second spring 530 is used to drive the fixing rod 520 to retract, and a driving assembly is provided at the opening of the fixing cavity 511, and the driving assembly is used to drive the fixing rod 520 to extend into the corresponding fixing hole 501.

[0054] In actual use, this embodiment is combined with Figure 6 and Fig.10 As shown, the side walls of the installation cavity 401 are provided with first limiting grooves 601 along the axial direction thereof, and the side walls of the drill rod 22 are provided with first limiting blocks 221 which are located and slide in the first limiting grooves 601. The drill rod 22 is limited in position in the installation cavity 401 by the coordinated arrangement of the first limiting grooves 601 and the first limiting blocks 221, so as to better ensure that the fixing holes 501 correspond to the corresponding fixing rods 520, thereby facilitating the insertion of the fixing rods 520 on both sides of the installation tube 21 into the corresponding fixing holes 501, thereby fixing the drill rod 22 and realizing the fixation of the installation tube 21 on the drill rod 22.

[0055] Among them, through the arrangement of the fixing cylinder 24, the fixing cavity 511, the fixing rod 520, the second spring 530 and the driving assembly, the second spring 530 can drive the fixing rod 520 to retract into the fixing cavity 511, so that the fixing rod 520 is separated from the corresponding fixing hole 501, and the fixation of the drill rod 22 is released. The driving assembly can drive the fixing rod 520 to extend into the installation cavity 401, so that the fixing rod 520 extends into the corresponding fixing hole 501, and the drill rod 22 is fixed;

[0056] In actual use, a plurality of fixing holes 501 are provided along the axial direction of the drill rod 22. Thus, in actual use, when the drill rod 22 is inserted into the ground or a counterweight block to support the target assembly 30, the height of the mounting tube 21 on the drill rod 22 can be adjusted by extending the fixing rod 520 into the fixing holes 501 at different positions, thereby improving the applicability of the target device.

[0057] Combination Figure 6 and Figure 7 As shown, in this embodiment, a slide groove 602 is provided on the side wall of the installation cavity 401 along its axial direction, and a blind hole 611 is provided on the side wall of the installation ring 420 corresponding to the slide groove 602; the locking assembly includes a locking slider 310 slidably arranged in the slide groove 602, and the upper end of the locking slider 310 is provided with a locking rod extending into the corresponding blind hole 611, and the fixed rod 520 is provided with a notch 701 along its axial direction for the lower end of the corresponding locking slider 310 to pass through, and a guide groove 702 is provided on the side wall opposite to the notch 701, and a sliding column extending into the guide groove 702 is provided on the side wall of the lower end of the locking slider 310 to slide, and the fixed rod 520 extends into the fixing hole 501 to drive the sliding column to slide along the guide groove 702 to realize the upward movement of the locking slider 310.

[0058] In this embodiment, two slide grooves 602 are arranged opposite to each other, and the locking slider 310 is slidably installed in the corresponding slide groove 602, and the sliding column is extended into the corresponding blind hole 611, so that when the locking slider 310 is lifted and lowered along the slide groove 602, the locking plate 440 can be driven to lift and lower, so that the piercing needle 441 can penetrate into or leave the target fixing seat 10;

[0059] Among them, combined Figure 7As shown, the guide groove 702 includes a horizontal groove portion and an inclined groove portion arranged along the axial direction of the fixing rod 520, the lower end of the locking slider 310 passes through the notch 701 and can slide along the notch 701, and the sliding column passes through the guide groove, that is, the sliding column can slide along the horizontal groove portion and the inclined groove portion, so that when the second spring 530 drives the fixing rod 520 to retract into the fixing cavity 511, at this time, the sliding column on the locking slider 310 is located in the horizontal groove portion, so that the first spring 450 is compressed, and the locking plate 440 is retracted into the installation cavity 401, and the locking of the target fixing seat 10 is released. At this time, the fixing rod 52 0 extends into the installation cavity 401 and is inserted into the fixing hole 501, so that the sliding column slides along the horizontal groove portion to the inclined groove portion, and cooperates with the first spring 450 to reset, so that the locking plate 440 can move up in the installation cavity 401, so that the piercing needle 441 is inserted into the lower side of the target fixing seat 10 to lock it; at this time, the fixing rod 520 retracts into the fixing cavity 511, so that the sliding column can slide along the inclined groove portion to the horizontal groove portion, so that the locking slider 310 moves down along the slide groove 602, driving the locking plate 440 to retract into the installation cavity 401, so that the piercing needle 441 is separated from the target fixing seat 10 and releases the fixation thereof.

[0060] Combination Figure 7 and Figure 8 As shown, in this embodiment, a plurality of ratchet grooves 801 are evenly arranged on the side wall of the fixed cavity 511 along its circumference, and a first sliding groove 802 and a second sliding groove 803 communicating with the opening of the fixed cavity 511 are arranged at the top of the ratchet groove 801 along the axial direction of the fixed cylinder 24, the first sliding groove 802 and the second sliding groove 803 are arranged at intervals, the depth of the first sliding groove 802 is greater than the depth of the second sliding groove 803, and a blocking ring 540 for blocking the first sliding groove 802 and the second sliding groove 803 is provided at the opening of the fixed cavity 511;

[0061] A rotatable swivel ring 550 is provided at the end of the fixed rod 520 that opens toward the fixed cavity 511, and a push rod 710 that can extend into the first sliding groove 802 is provided on the swivel ring 550, and a driving inclined surface that matches with the ratchet groove 801 is provided on the push rod 710, and a driving assembly includes a pressing cylinder 560 that can be slidably arranged at the opening of the fixed cavity 511, and a push rod 720 that slides in the first sliding groove 802 and the second sliding groove 803 is evenly distributed on the side wall of the pressing cylinder 560, and an extrusion inclined surface that matches with the inclined surface is provided on the side wall of the push rod 720. Pressing the pressing cylinder 560 is used to drive the push rod 720 to make the extrusion inclined surface squeeze the driving inclined surface, so as to realize the switching of the push rod 710 between adjacent ratchet grooves 801.

[0062] In this embodiment, the blocking ring 540 is fixedly installed at the opening of the fixed cylinder 24 by screws, and is used to block the first sliding groove 802 and the second sliding groove 803, thereby realizing the sliding installation of the pressing cylinder 560 at the opening of the fixed cavity 511; wherein the shape of the push rod 720 is adapted to the second sliding groove 803, and the shape of the push rod 710 is adapted to the first sliding groove 802, that is, the driving inclined surface on the push rod 710 and the extrusion inclined surface on the push rod 720 are in abutment and matched;

[0063] A screw rod penetrating the rotating ring 550 is arranged on the end wall of the fixing rod 520 facing the opening of the fixing cavity 511, and a nut for limiting the rotating ring 550 on the screw rod is threadedly installed on the screw rod, thereby realizing the rotating installation of the rotating ring 550 in a better manner;

[0064] Through the structure of this embodiment, in actual use, when the push rod 710 is located in the first sliding groove 802, pressing the pressing cylinder 560 to make it extend into the fixing cavity 511, the push rod 720 can slide along the first sliding groove 802 and the second sliding groove 803 into the ratchet groove 801, so that the extrusion inclined surface on it can squeeze the driving inclined surface to push the push rod 710 out of the first sliding groove 802 into the ratchet groove 801. At this time, the push rod 720 continues to drive the push rod 710 to move downward, so that the push of the second spring 530 causes the push rod 710 to slide along the extrusion inclined surface into the adjacent ratchet groove 801, and then the push rod 710 abuts against the ratchet groove 801, thereby achieving the fixing of the rod 5 20 is extended; at this time, pressing the pressing cylinder 560 again can drive the push rod 720 in the second sliding groove 803 to slide into the ratchet groove 801, so that the extrusion inclined surface squeezes the driving inclined surface, so that it cooperates with the push of the second spring 530, so that the push rod 710 slides along the extrusion inclined surface to the adjacent ratchet groove 801. At this time, under the action of the second spring 530, the push rod 710 slides into the first sliding groove 802, so that the fixing rod 520 is retracted into the fixing cavity 511. Therefore, when this embodiment is actually used, the pressing cylinders 560 on both sides of the installation cylinder 21 can be synchronously pressed to achieve the synchronous extension and retraction of the fixing rods 520 on both sides, so that the use of the locking assembly and the fixing assembly is more convenient.

[0065] Combination Figure 9-11 As shown, in this embodiment, a fixed ring 910 is provided in the active cavity 411, and the pushing member includes a sliding rod 320 slidably provided in the active cavity 411, and the lower end of the sliding rod 320 is provided with a connecting rod 921 that passes through the fixed ring 910 and is connected to the pointed cone 23, and the connecting rod 921 is provided with a third spring 930 for pushing the sliding rod 320 to move upward and drive the pointed cone 23 to retract into the active cavity 411.

[0066] In this embodiment, the movable cavity 411 is provided with openings on both sides, the third spring 930 is sleeved on the connecting rod 921, and the sliding rod 320 is extended into the movable cavity 411, and the connecting rod 921 is extended through the fixing ring 910, and the pointed cone 23 is welded to one end of the connecting rod 921, thereby preferably realizing the telescopic installation of the pointed cone 23 in the movable cavity 411;

[0067] Among them, through the setting of the third spring 930, it can drive the pointed cone 23 to retract into the active cavity 411, so that when the drill rod 22 is in use, the pointed cone 23 can be retracted into the active cavity 411 to avoid it from piercing the operator.

[0068] In this embodiment, the mating part includes a mating cavity 570 corresponding to the fixing hole 501 and arranged at the upper end of the sliding rod 320. A protrusion 571 is provided at the center position of the mating cavity 570. Guide slopes 572 that match the corresponding fixing rod 520 are provided on both sides of the protrusion 571. The fixing rod 520 squeezes the guide slope 572 to realize the downward movement of the sliding rod 320.

[0069] In this embodiment, the side wall of the movable cavity 411 is provided with a second limiting groove (not shown in the figure) along the axial direction thereof, and the side wall of the sliding rod 320 is provided with a second limiting block (not shown in the figure) which slides in the second limiting groove. The sliding rod 320 is limited by the cooperation of the second limiting groove and the second limiting block, so as to ensure that the matching cavity 570 is aligned with the fixing hole 501. In actual use, the number of the matching cavities 570 corresponds to the number of the fixing holes 501, so that the fixing rod 520 can penetrate the fixing hole 501 and extend into the corresponding matching cavity 570.

[0070] Among them, through the setting of the protrusion 571 and the guiding slope 572, in actual use, the fixed rods 520 on both sides are extended into the matching cavity 570, and the guiding slope 572 can be squeezed to slide to the side wall of the protrusion 571, thereby realizing the descending of the sliding rod 320 in the active cavity 411, and then driving the pointed cone 23 to extend out of the lower end of the drill rod 22, so as to facilitate the insertion and use of the drill rod 22.

[0071] In conclusion, the above is only a preferred embodiment of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the patent of the present invention.

Claims

1. A rotatable laser scanning target device, comprising a support assembly (20) and a target fixing seat (10) rotatably arranged on the support assembly (20), wherein a target assembly (30) is arranged on the target fixing seat (10), characterized in that: The target assembly (30) comprises a spherical prism (31) and an annular plate (33) sleeved on the outside of the spherical prism (31) via a connecting rod (32); the spherical prism (31) is fixedly connected to the target fixing seat (10) via a fixing seat (34); The support assembly (20) comprises a mounting tube (21), a mounting cavity (401) with openings at both ends is provided in the mounting tube (21), a target fixing seat (10) is rotatably mounted at the upper opening of the mounting cavity (401), and a locking assembly for locking the target fixing seat (10) is provided in the mounting cavity (401); A drill rod (22) is provided in the installation cavity (401) so as to be slidable and to extend from the lower end thereof; a fixing assembly for fixing the drill rod (22) is provided at the lower end of the installation cavity (401); a driving assembly is provided outside the installation tube (21) and at the lower end thereof; the driving assembly is used to drive the fixing assembly to release the fixing of the drill rod (22) and synchronously drive the locking assembly to release the locking of the target fixing seat (10); A movable cavity (411) opening downward is provided in the drill rod (22); a pointed cone (23) which can be received in the movable cavity (411) is provided in the movable cavity (411) through a pushing member; a matching member matching with a fixing assembly is provided on the pushing member; when the fixing assembly fixes the drill rod (22), the matching member is driven to push the pointed cone (23) out of the movable cavity (411).

2. The rotatable laser scanning target device according to claim 1, characterized in that: A mounting ring (420) is provided in the mounting cavity (401), and the target fixing seat (10) is rotatably mounted on the mounting ring (420) via a rotating rod (430); The locking assembly comprises a locking plate (440) which is liftably sleeved on a rotating rod (430), the upper side of the locking plate (440) being evenly provided with needles, and the rotating rod (430) between the mounting ring (420) and the locking plate (440) being sleeved with a first spring (450) for pushing the locking plate (440) to move toward the target fixing seat (10) so that the needles can penetrate into the target fixing seat (10).

3. The rotatable laser scanning target device according to claim 2, characterized in that: A fixing hole (501) is relatively arranged on the outer wall of the drill rod (22) and at the upper end thereof, and a plurality of fixing holes (501) are arranged along the axial direction of the drill rod (22); a fixing assembly comprises a fixing cylinder (24) relatively arranged outside the mounting cylinder (21), a fixing cavity (511) opening outward is arranged in the fixing cylinder (24), a fixing rod (520) which can penetrate the mounting cylinder (21) and extend into the mounting cavity (401) is arranged in the fixing cavity (511), a second spring (530) which is sleeved on the outside of the fixing rod (520) is arranged in the fixing cavity (511), and the second spring (530) is used for driving the fixing rod (520) to retract, and a driving assembly is arranged at the opening of the fixing cavity (511), and the driving assembly is used for driving the fixing rod (520) to extend into the corresponding fixing hole (501).

4. The rotatable laser scanning target device according to claim 3, characterized in that: A first limiting groove (601) is arranged on the side wall of the installation cavity (401) along its axial direction, and a first limiting block (221) is arranged on the side wall of the drill rod (22) and is slidable in the first limiting groove (601).

5. The rotatable laser scanning target device according to claim 3, characterized in that: A sliding groove (602) is provided on the side wall of the installation cavity (401) along its axial direction, and a blind hole (611) is provided on the side wall of the installation ring (420) corresponding to the sliding groove (602). The locking assembly includes a locking slider (310) slidably arranged in the sliding groove (602), and the upper end of the locking slider (310) is provided with a locking rod extending into the corresponding blind hole (611). A notch (701) is provided on the fixed rod (520) along its axial direction for the lower end of the corresponding locking slider (310) to pass through, and a guide groove (702) is provided on the side wall opposite to the notch (701). A sliding column extending into the guide groove (702) and sliding is provided on the side wall of the lower end of the locking slider (310). The fixed rod (520) extends into the fixing hole (501) to drive the sliding column to slide along the guide groove (702) to realize the upward movement of the locking slider (310).

6. The rotatable laser scanning target device according to claim 5, characterized in that: A plurality of ratchet grooves (801) are evenly arranged on the side wall of the fixed cavity (511) along its circumference, and a first sliding groove (802) and a second sliding groove (803) communicating with the opening of the fixed cavity (511) are arranged at the top of the ratchet groove (801) along the axial direction of the fixed cylinder (24), the first sliding groove (802) and the second sliding groove (803) are arranged at intervals, the depth of the first sliding groove (802) is greater than the depth of the second sliding groove (803), and a blocking ring (540) for blocking the first sliding groove (802) and the second sliding groove (803) is provided at the opening of the fixed cavity (511); A rotatable swivel (550) is provided at the end of the fixed rod (520) facing the opening of the fixed cavity (511), and a push rod (710) which can be extended into the first sliding groove (802) is provided on the swivel (550), and a driving inclined surface which matches with the ratchet groove (801) is provided on the push rod (710), and a driving component includes a pressing cylinder (560) which can be slidably arranged at the opening of the fixed cavity (511), and a push rod (720) which slides in the first sliding groove (802) and the second sliding groove (803) is evenly distributed on the side wall of the pressing cylinder (560), and an extrusion inclined surface which matches with the inclined surface is provided on the side wall of the push rod (720), and the pressing cylinder (560) is used to drive the push rod (720) to make the extrusion inclined surface squeeze the driving inclined surface, so as to realize the switching of the push rod (710) between adjacent ratchet grooves (801).

7. The rotatable laser scanning target device according to claim 6, characterized in that: A fixed ring (910) is provided in the movable cavity (411), and the pushing member includes a sliding rod (320) slidably arranged in the movable cavity (411), and a connecting rod (921) is provided at the lower end of the sliding rod (320) and passes through the fixed ring (910) and is connected to the pointed cone (23), and a third spring (930) is sleeved on the connecting rod (921) for pushing the sliding rod (320) to move upward and drive the pointed cone (23) to retract into the movable cavity (411).

8. The rotatable laser scanning target device according to claim 7, characterized in that: The matching piece comprises a matching cavity (570) corresponding to the fixing hole (501) and arranged at the upper end of the sliding rod (320); a protrusion (571) is arranged at the center of the matching cavity (570); guide inclined surfaces (572) matching the corresponding fixing rod (520) are arranged on both sides of the protrusion (571); the fixing rod (520) squeezes the guide inclined surface (572) to realize the downward movement of the sliding rod (320).

9. The rotatable laser scanning target device according to claim 8, characterized in that: A second limiting groove is arranged on the side wall of the movable cavity (411) along its axial direction, and a second limiting block is arranged on the side wall of the sliding rod (320) and is slidable in the second limiting groove.

10. The rotatable laser scanning target device according to claim 1, characterized in that: A prismatic reflective film is pasted on the surface of the annular plate (33), and cross marks (35) are provided on the surface of the prismatic reflective film at intervals of 60 degrees.

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