A remote laser distance measuring device

Abstract

The present invention relates to the technical field of distance measuring devices, and in particular to a long-range laser distance measuring device, which solves the problem that surveyors may miss a leveling step, and comprises: a first support seat, which is arranged on the top of a tripod; a second support seat, which is arranged on the top of the first support seat, the center of gravity of the second support seat is offset to one side, and the cooperation between the second support seat and the first support seat is divided into an automatic leveling state and a restricted rotation state; a third support seat, which is arranged on the top of the second support seat, and a distance meter is arranged on the top of the third support seat; a height adjustment component, which is arranged in the second support seat and is used to adjust the height of the third support seat close to the center of gravity of the second support seat; different from the adjustment method of the traditional foot screw, the present invention only needs two leveling steps, and there will be no problem of missing steps in the leveling steps at different sites.

Description

Technical Field

[0001] The present invention relates to the technical field of distance measuring devices, and in particular to a long-range laser distance measuring device. Background Art

[0002] Laser rangefinders are divided into phase rangefinders and pulse rangefinders according to the distance measurement method. Pulse laser rangefinders emit one or a series of short pulse laser beams to the target when working. The laser beam reflected by the target is received by the photoelectric element. The timer measures the time from the emission to the reception of the laser beam and calculates the distance from the observer to the target. Existing pulse laser rangefinder products are mainly divided into handheld ones with shorter distance measurement and desktop ones with longer distance measurement (such as total stations, etc.). Desktop products need to be used with a tripod. The horizontality of the tripod has a great influence on the measurement accuracy. The existing desktop rangefinder products on the market use three foot screws for leveling. The base product needs to be supported to different angles for three levelings, and then rotated back to the first leveling angle to confirm whether it is level. It is difficult to adjust quickly in long-distance distance measurement operations in complex environments (such as mountains with many stones, uneven ground, etc.). Surveyors will miss the leveling steps of a certain angle or the steps of reconfirming whether it is level during the leveling steps at different sites, resulting in insufficient measurement accuracy and affecting the final measurement data. Summary of the invention

[0003] Therefore, it is necessary to provide a long-range laser ranging device to solve the problem that the surveyors miss the leveling step.

[0004] To achieve the above object, the inventor provides a long-range laser ranging device, comprising:

[0005] Tripod;

[0006] A first support base, the first support base is arranged on the top of the tripod, and a rotation groove is provided on the first support base;

[0007] A second support base, wherein the second support base is disposed on the top of the first support base, the center of gravity of the second support base is offset to one side, and the cooperation between the second support base and the first support base is divided into an automatic leveling state and a limited rotation state. In the automatic leveling state, the side to which the center of gravity of the second support base is offset is rotated to the side with a lower height of the top of the tripod, and in the limited rotation state, the second support base cannot rotate with the first support base;

[0008] A limiting component, wherein the limiting component is provided in the rotation groove and is used for switching between an automatic leveling state and a rotation limiting state;

[0009] A third support base, the third support base is arranged on the top of the second support base, and a rangefinder is arranged on the top of the third support base;

[0010] It also includes a flip member, which is arranged on the second support seat, and the flip member is arranged on a side away from the center of gravity of the second support seat;

[0011] A height adjustment component is disposed in the second support seat and is used to adjust the height of the third support seat on a side close to the center of gravity of the second support seat.

[0012] Furthermore, a bearing is provided in the rotating groove, the inner ring of the bearing is connected to the first support seat, and a sleeve is provided at the bottom of the second support seat, and the sleeve is non-rotatably sleeved on the outer side of the bearing.

[0013] Furthermore, a convex strip is provided on the outer side of the bearing, and a groove strip matching the convex strip is provided on the sleeve.

[0014] Further, the limiting component includes a limiting arc piece, a first locking piece, a second locking piece and a rotating shaft, the first locking piece and the second locking piece are rotatably mounted on one end of the rotating shaft, the other end of the rotating shaft protrudes out of the first support seat, the first locking piece and the second locking piece are arranged at intervals, the limiting arc pieces are arranged on both sides of the sleeve, one end of each of the limiting arc pieces is arranged between the intervals, and the other end of each of the limiting arc pieces is rotatably connected to the first support seat.

[0015] Furthermore, a plurality of clamping blocks are provided on the inner side of each of the limiting arc pieces.

[0016] Furthermore, an adjustment groove is provided on the second support seat, and the height adjustment component is arranged in the adjustment groove. The height adjustment component includes an adjustment rod and an adjustment block. The adjustment block is arranged above the adjustment rod, and a thread is provided on the outer side of the adjustment rod. A thread matching the adjustment rod is provided on the bottom of the adjustment block. The top of the adjustment block protrudes out of the top of the second support seat, and a pad is provided at the bottom of the third support seat. The height of the cross-section of the pad gradually increases toward the side where the center of gravity of the second support seat is offset, and a slide groove matching the top of the adjustment block is provided at the bottom of the pad.

[0017] Furthermore, a mounting column is provided on the top of the third support seat, and a threaded sleeve is provided on the outer sleeve of the mounting column.

[0018] Furthermore, a locking component is provided on the third support seat, and the locking component includes a locking rod, a tension spring, a lifting rod, a lifting ball and a plurality of locking balls;

[0019] A lifting groove is provided at the bottom of the mounting column, the lifting rod is arranged in the lifting groove, the lifting ball is arranged above the lifting rod, each locking ball is arranged above the lifting ball, a plurality of spherical grooves are provided on the side wall of the mounting column, and a clamping groove is provided on the inner side wall of the threaded sleeve at the same height as the spherical groove;

[0020] The third support seat is provided with a through groove with one end closed at the bottom of the mounting column, one end of the locking rod extends into the through groove, the tension spring connects the extending end of the locking rod and the closed end of the through groove, and the locking rod is provided with an inclined groove below the lifting groove.

[0021] Furthermore, it also includes a flip part, which is arranged on the second support seat, and the flip part includes a base, a top cover, an adjusting bolt, a ball joint and a connecting rod. The top cover is arranged above the base, and the top cover and the base are spaced apart. Restriction surfaces are provided on both sides of the ball joint, and a flip groove matching the outer side of the ball joint is provided at the top of the base and the bottom of the top cover. The adjusting bolts are arranged on both sides of the ball joint, and each of the adjusting bolts connects the top cover and the base. The top end of the connecting rod is connected to the third support seat, and the bottom end of the connecting rod is connected to the top of the ball joint.

[0022] Furthermore, the ball joint includes a hinge body, a fixed ring and a plurality of rotating balls. The hinge body is provided with a plurality of grooves on the outside, and the rotating balls are respectively arranged in the grooves. The fixed ring is sleeved on the outside of the hinge body, and the fixed ring is provided with holes at the locations where the rotating balls are arranged.

[0023] Different from the prior art, the above technical solution has the following advantages:

[0024] Different from the adjustment method of traditional foot screws, the present invention sets the offset center of gravity of the second support seat to cooperate with the limiting component and the height adjustment component, so that when the tripod is erected, the center of gravity of the second support seat can be automatically offset to the lower side of the tripod top. During leveling, it is only necessary to switch the limiting component from the automatic leveling state to the restricted rotation state, and then cooperate with the height adjustment component to adjust the height of the third support seat close to the center of gravity of the second support seat, so as to achieve leveling of the rangefinder on the top of the third support seat. Only two leveling steps are required, and there will be no problem of missing steps in the leveling steps at different sites. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0026] Figure 2 This is a schematic diagram of the combined structure of the first support base, the second support base and the third support base in this embodiment;

[0027] Figure 3 This is a schematic diagram of the separation structure of the first support base, the second support base and the third support base in this embodiment;

[0028] Figure 4 This is a schematic diagram of the structure of the limiting component of this embodiment;

[0029] Figure 5 This is a schematic diagram of the structure of the first card-mounted sheet and the second card-mounted sheet in this embodiment;

[0030] Figure 6 This is a schematic diagram of the structure of the limiting arc piece in the preferred embodiment;

[0031] Figure 7 This is a schematic diagram of the structure of the second support base in this embodiment;

[0032] Figure 8 This is a schematic diagram of the cross-sectional structure of the second support seat in this embodiment;

[0033] Fig. 9 This is a schematic diagram of the structure of the flip member in this embodiment;

[0034] Fig.10 This is a schematic diagram of the ball joint structure of this embodiment;

[0035] Fig.11 This is a schematic diagram of the top cover structure of this embodiment;

[0036] Fig.12 This is a schematic diagram of the base structure of this embodiment;

[0037] Fig.13 This is a schematic diagram of the structure of the third support base in this embodiment;

[0038] Fig.14 This is a schematic diagram of the cross-sectional structure of the third support seat in this embodiment;

[0039] Fig.15 Schematic diagram of the cross-sectional structure of the threaded sleeve in this embodiment.

[0040] Description of reference numerals:

[0041] Tripod 1;

[0042] First support seat 2; rotation groove 21; bearing 22; convex strip 23;

[0043] Second support seat 3; sleeve 31; groove 32; adjustment groove 33;

[0044] Limiting component 4; limiting arc piece 41; first clamping piece 42; second clamping piece 43; rotating shaft 44; clamping block 45;

[0045] The third support seat 5; a cushion block 51; a slide groove 52; a mounting column 53; a threaded sleeve 54; a lifting groove 55; a clamping groove 56; a through groove 57;

[0046] Flipping member 6; base 61; top cover 62; adjusting bolt 63; ball hinge 64; hinge body 641; fixing ring 642; rotating ball 643; groove 644; hole 645; connecting rod 65; limiting surface 66; flipping groove 67;

[0047] Height adjustment component 7; adjustment rod 71; adjustment block 72;

[0048] Locking component 8; locking rod 81; inclined groove 811; tension spring 82; lifting rod 83; lifting ball 84; locking ball 85; spherical groove 86. DETAILED DESCRIPTION

[0049] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0050] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0051] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0052] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0053] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0054] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0055] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0056] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0057] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0058] See also Figures 1 to 15 This embodiment provides a long-range laser ranging device, including:

[0059] Tripod 1; a first support seat 2, wherein the first support seat 2 is arranged at the top of the tripod 1, and a rotation slot 21 is provided on the first support seat 2; a second support seat 3, wherein the second support seat 3 is arranged at the top of the first support seat 2, and the center of gravity of the second support seat 3 is offset to one side, and the cooperation between the second support seat 3 and the first support seat 2 is divided into an automatic leveling state and a limited rotation state. In the automatic leveling state, the side to which the center of gravity of the second support seat 3 is offset is rotated to the side with a lower height of the top of the tripod 1, and in the limited rotation state, the second support seat 3 and the first support seat 2 cannot rotate. ; A limiting component 4, a limiting component for switching between an automatic leveling state and a limited rotation state is provided in the rotation groove 21; a third support seat 5, the third support seat 5 is provided on the top of the second support seat 3, and a rangefinder (not shown in the figure) is provided on the top of the third support seat 5; a flip member 6, the flip member 6 is provided on the second support seat 3, and the flip member 6 is provided on a side away from the center of gravity of the second support seat 3; a height adjustment component 7, the height adjustment component 7 is provided in the second support seat 3, and is used to adjust the height of the third support seat 5 close to the center of gravity of the second support seat 3;

[0060] A bearing 22 is disposed in the rotating groove 21, and the inner ring of the bearing 22 is connected to the first support seat 2. A sleeve 31 is disposed at the bottom of the second support seat 3, and the sleeve 31 is non-rotatably sleeved on the outer side of the bearing 22.

[0061] In order to achieve the non-rotation between the sleeve 31 and the bearing 22, in this embodiment, the convex strip 23 is provided on the outer side of the bearing 22 and the groove strip 32 matched with the convex strip 23 is provided on the sleeve 31. In other preferred embodiments, it can also be achieved by directly fixing the sleeve 31 and the outer side of the bearing 22, which will not be described in detail here.

[0062] In this embodiment, the limiting component 4 includes a limiting arc piece 41, a first clamping piece 42, a second clamping piece 43 and a rotating shaft 44, one end of the rotating shaft 44 can be rotatably sleeved with the first clamping piece 42 and the second clamping piece 43, the other end of the rotating shaft 44 protrudes out of the first supporting seat 2, and the first clamping piece 42 and the second clamping piece 43 are arranged at intervals; in this embodiment, the limiting arc pieces 41 are arranged on both sides of the sleeve 31, and each of the limiting arc pieces 41 will not be deformed during the switching process between the automatic leveling state and the limited rotation state, and is made of steel. One end of each of the limiting arc pieces 41 is arranged between the first clamping piece 42 and the second clamping piece The other end of each limiting arc piece 41 is rotatably connected to the first support seat 2, and a clamping block 45 is provided on the inner side of each limiting arc piece 41. The structural form of the limiting component 4 of the present application can give a symmetrical, annular centripetal force to the outer side of the sleeve 31, and will not cause the rotation of the sleeve 31 to affect the leveling effect when in contact with the sleeve 31; in other preferred embodiments, the limiting arc piece 41 is annular with an opening, and the end of the limiting arc piece 41 is the same as that of the present embodiment, and is arranged between the intervals. The limiting arc piece 41 will deform during the switching process between the automatic leveling state and the rotation limiting state, and can be made of plastic;

[0063] In other preferred embodiments, the limiting component 4 can also directly adopt a combination of a rotating shaft 44 and a first locking plate 42. During the switching process, the switching between the automatic leveling state and the restricted rotation state is achieved by adjusting whether the first locking plate 42 is in contact with the sleeve 31, and the structure is simpler.

[0064] In this embodiment, the flip member 6 includes a base 61, a top cover 62, an adjusting bolt 63, a ball joint 64 and a connecting rod 65. The top cover 62 is arranged above the base 61, and the top cover 62 and the base 61 are spaced apart. Limiting surfaces 66 are provided on both sides of the ball joint 64. A flip groove 67 matching the outer side of the ball joint 64 is provided on the top of the base 61 and the bottom of the top cover 62. The adjusting bolts 63 are provided on both sides of the ball joint 64, and each adjusting bolt 63 connects the top cover 62 and the base 61. The top end of the connecting rod 65 is connected to the third support seat 5, and the bottom end of the connecting rod 65 is connected to the top of the ball joint 64. The ball joint 64 includes a hinge body 641 , a fixing ring 642 and a plurality of rotating balls 643, a plurality of grooves 644 are provided on the outer side of the hinge body 641, and the rotating balls 643 are respectively provided at the grooves 644, the fixing ring 642 is sleeved on the outer side of the hinge body 641, and the fixing ring 642 is provided with holes 645 at the locations where the rotating balls 643 are provided; wherein, the limiting surfaces 66 provided on both sides of the ball hinge 64 cooperate with the turning grooves 67 provided on the top of the base 62 and the bottom of the top cover 63 to limit the ball hinge 64 from tilting to both sides, and the combination of the base 62, the top cover 63 and the adjusting bolt 63 can make the ball hinge 64 fit more closely with the turning groove 67, so as to improve the stability of the ball hinge 64 during the rotation process;

[0065] In other preferred embodiments, the flip member 6 may be in the form of a hinged seat, which has a simpler structure and lower component cost. It is an existing structural form and will not be described in detail here.

[0066] The second support seat 3 is provided with an adjustment groove 33, and the height adjustment component 7 is arranged in the adjustment groove 33. The height adjustment component 7 includes an adjustment rod 71 and an adjustment block 72. The adjustment block 72 is arranged above the adjustment rod 71, and the outer side of the adjustment rod 71 is provided with a thread, and the bottom of the adjustment block 72 is provided with a thread matching the adjustment rod 71, and the top of the adjustment block 72 protrudes out of the top of the second support seat 3; the bottom of the third support seat 5 is provided with a cushion block 51, and the cross-sectional height of the cushion block 51 gradually increases toward the side where the center of gravity of the second support seat 3 is offset; the present application adjusts the height of the third support seat 5 close to the center of gravity of the second support seat 3 by arranging the height adjustment component 7, so as to achieve the adjustment of the horizontality of the third support seat 5; the bottom of the cushion block 51 is provided with a slide groove 52 matching the top of the adjustment block 72, which is used to limit the top of the adjustment block 72 to be able to move stably along the slide groove 52.

[0067] A mounting post 53 is disposed on the top of the third support seat 5, and a threaded sleeve 54 is disposed on the outer sleeve of the mounting post 53; wherein the threaded sleeve 54 is used to connect with the threaded hole at the bottom of the rangefinder, and the threaded hole is an existing conventional design of the existing rangefinder, which will not be described in detail here.

[0068] The third support seat 5 is provided with a locking component 8, and the locking component 8 includes a locking rod 81, a tension spring 82, a lifting rod 83, a lifting ball 84 and three locking balls 85; a lifting groove 55 is opened at the bottom of the mounting column 53, the lifting rod 83 is arranged in the lifting groove 55, the lifting ball 84 is arranged above the lifting rod 83, and each locking ball 85 is arranged above the lifting ball 84; the side wall of the mounting column 53 is provided with six continuous spherical grooves 86, and the locking balls 85 protrude from the outside of the mounting column 53 at the spherical grooves 86, and a larger number of spherical grooves 86 are convenient for locking. To clamp the ball 85, the inner wall of the threaded sleeve 54 is provided with a clamping groove 56 at the same height as the spherical groove 86; the third support seat 5 is provided with a through groove 57 with one end closed at the bottom of the mounting column 53, one end of the locking rod 81 is inserted into the through groove 57, the tension spring 82 connects the inserted end of the locking rod 81 with the closed end of the through groove 57, and the locking rod 81 is provided with an inclined groove 811 below the jacking groove 55; the locking component 8 is provided so that the mounting column 53 can clamp the threaded sleeve 54 during the station moving process to prevent the rangefinder from falling, and the locking process is quick and rapid;

[0069] In this embodiment, the mounting post 53 and the threaded sleeve 54 are slidable;

[0070] In other preferred embodiments, when the locking component 8 is not provided, the mounting column 53 and the threaded sleeve 54 are connected via threads.

[0071] How it works:

[0072] When in use, the surveyor first sets up the tripod 1 and roughly levels it. At this time, the second support seat 3 and the first support seat 2 are in an automatic leveling state, and one side of the center of gravity of the second support seat 3 automatically rotates to the lower side of the tripod 1, and then the rotating shaft 44 is rotated to push the second clamping piece 43 to move inward, so that the clamping block 45 contacts the sleeve 31. At this time, the second support seat 3 and the first support seat 2 are in a restricted rotation state, and then the threaded sleeve 54 is connected to the threaded hole at the bottom of the rangefinder, and the locking rod 81 is pulled outward to extend the tension spring 82, so that the lifting rod 83 moves downward along the inclined groove 811 with gravity, and the lifting ball 84 moves downward. Make sure that the locking ball 85 does not protrude from the outside of the mounting column 53, place the rangefinder on the third support seat 5, and sleeve the threaded sleeve 54 on the mounting column 53. Loosen the locking rod 81, and the tensioning spring 82 will automatically contract, so that the lifting rod 83 moves upward along the inclined groove, and the lifting ball 84 moves upward, so that the locking ball 85 protrudes from the outside of the mounting column 53 at the spherical groove 86, and the part of the locking ball 85 protruding from the outside of the mounting column 53 is clamped in the clamping groove 56, and then rotate the adjusting rod 71 to move the adjusting block 72 along the adjusting rod 71, adjust the height of the third support seat 5 away from the center of gravity of the second support seat 3, and the rangefinder can be leveled.

[0073] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A long-range laser ranging device, characterized in that: include: Tripod; A first support base, the first support base is arranged on the top of the tripod, and a rotation groove is provided on the first support base; A second support base, wherein the second support base is disposed on the top of the first support base, the center of gravity of the second support base is offset to one side, and the cooperation between the second support base and the first support base is divided into an automatic leveling state and a limited rotation state. In the automatic leveling state, the side to which the center of gravity of the second support base is offset is rotated to the side with a lower height of the top of the tripod, and in the limited rotation state, the second support base cannot rotate with the first support base; A limiting component, wherein the limiting component is provided in the rotation groove and is used for switching between an automatic leveling state and a rotation limiting state; A third support base, the third support base is arranged on the top of the second support base, and a rangefinder is arranged on the top of the third support base; A flip member, wherein the flip member is disposed on the second support seat, and the flip member is disposed on a side away from the center of gravity of the second support seat; A height adjustment component, which is disposed in the second support seat and is used to adjust the height of the third support seat on a side close to the center of gravity of the second support seat; The second support seat is provided with an adjustment groove, and the height adjustment component is arranged in the adjustment groove. The height adjustment component includes an adjustment rod and an adjustment block. The adjustment block is arranged above the adjustment rod, and a thread is arranged on the outer side of the adjustment rod. The bottom of the adjustment block is provided with a thread matching the adjustment rod. The top of the adjustment block protrudes out of the top of the second support seat, and a pad is arranged at the bottom of the third support seat. The height of the cross-section of the pad gradually increases toward the side where the center of gravity of the second support seat is offset, and the bottom of the pad is provided with a slide groove matching the top of the adjustment block.

2. A long-range laser ranging device according to claim 1, characterized in that: A bearing is arranged in the rotating groove, the inner ring of the bearing is connected to the first supporting seat, and a sleeve is arranged at the bottom of the second supporting seat, and the sleeve is non-rotatably sleeved on the outer side of the bearing.

3. A long-range laser ranging device according to claim 2, characterized in that: The outer side of the bearing is provided with a convex strip, and the sleeve is provided with a groove strip matching the convex strip.

4. A long-range laser ranging device according to claim 2, characterized in that: The limiting component includes a limiting arc piece, a first locking piece, a second locking piece and a rotating shaft. The first locking piece and the second locking piece are rotatably mounted on one end of the rotating shaft. The other end of the rotating shaft protrudes out of the first supporting seat. The first locking piece and the second locking piece are arranged at intervals. The limiting arc pieces are arranged on both sides of the sleeve. One end of each of the limiting arc pieces is arranged between the intervals, and the other end of each of the limiting arc pieces is rotatably connected to the first supporting seat.

5. A long-range laser ranging device according to claim 4, characterized in that: A plurality of clamping blocks are arranged on the inner side of each of the limit arc pieces.

6. A long-range laser ranging device according to claim 1, characterized in that: The top of the third support seat is provided with a mounting column, and the outer sleeve of the mounting column is provided with a threaded sleeve.

7. A long-range laser ranging device according to claim 6, characterized in that: The third support seat is provided with a locking component, which includes a locking rod, a tension spring, a lifting rod, a lifting ball and a plurality of locking balls; A lifting groove is provided at the bottom of the mounting column, the lifting rod is arranged in the lifting groove, the lifting ball is arranged above the lifting rod, each locking ball is arranged above the lifting ball, a plurality of spherical grooves are provided on the side wall of the mounting column, and a clamping groove is provided on the inner side wall of the threaded sleeve at the same height as the spherical groove; The third support seat is provided with a through groove with one end closed at the bottom of the mounting column, one end of the locking rod extends into the through groove, the tension spring connects the extending end of the locking rod and the closed end of the through groove, and the locking rod is provided with an inclined groove below the lifting groove.

8. A long-range laser ranging device according to claim 1, characterized in that: The flip part includes a base, a top cover, an adjusting bolt, a ball joint and a connecting rod. The top cover is arranged above the base, and the top cover and the base are spaced apart. Restriction surfaces are provided on both sides of the ball joint. The top of the base and the bottom of the top cover are provided with flip grooves matching the outer side of the ball joint. The adjusting bolts are arranged on both sides of the ball joint, and each adjusting bolt connects the top cover and the base. The top end of the connecting rod is connected to the third support seat, and the bottom end of the connecting rod is connected to the top of the ball joint.

9. A long-range laser ranging device according to claim 8, characterized in that: The ball joint includes a hinge body, a fixed ring and a plurality of rotating balls. The hinge body is provided with a plurality of grooves on the outside, and the rotating balls are respectively arranged at the grooves. The fixed ring is sleeved on the outside of the hinge body, and the fixed ring is provided with holes at the locations where the rotating balls are arranged.

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