Adjustable support for total station

Abstract

The invention discloses an adjustable bracket for a total station, which relates to the technical field of auxiliary equipment of measuring instruments and comprises three auxiliary devices, the auxiliary device comprises a seat body, two rotating pieces and a plurality of rotating blocks; the two rotating pieces are arranged on the two sides of the base body respectively and rotationally connected with the base body. When the supporting feet make contact with the plane, the rotating pieces rotate in the direction away from the corresponding telescopic rods and then make contact with the plane. The multiple rotating blocks are arranged on the two sides of the rotating piece correspondingly, and the rotating blocks are rotationally connected with the rotating piece; when the rotating pieces make contact with the plane, the rotating blocks make contact with the plane after rotating in the direction away from the corresponding rotating pieces. According to the total station, the abrasion degree of the tip part of the supporting leg in the using process of the total station can be effectively reduced, so that the operation convenience of height adjustment and leveling of the bracket can be effectively ensured.

Description

Technical Field

[0001] The present application relates to the technical field of auxiliary equipment for measuring instruments, and in particular to an adjustable bracket for a total station. Background Art

[0002] Total station is a high-tech measuring instrument that integrates optics, mechanics and electronics. It is also a surveying and mapping instrument system that integrates horizontal angle, vertical angle, distance (slant distance, horizontal distance) and height difference measurement functions. At present, in the fields of engineering surveying and topographic surveying, total station has been widely used as an important precision measurement tool. With the increase in the diversified needs of engineering construction, higher requirements are placed on the flexibility of the use of total station.

[0003] At present, the total station mainly includes an instrument body and a bracket. During the use of the instrument body, it is usually necessary to adjust the height of the bracket to meet the different measurement needs of the instrument body. Existing brackets usually have three rotatable and retractable adjustable legs. The operator can adjust the position height of the instrument body by adjusting the inclination angle and length of the legs, which is convenient for subsequent measurement work.

[0004] In order to facilitate construction workers to level the instrument body, the end of the support foot that contacts the ground is usually designed with a pointed tip, which will cause the end of the support foot to be easily worn during the use of the total station. If the tip of the support foot is worn, the difficulty of leveling the instrument body will be significantly increased. Summary of the invention

[0005] The present application provides an adjustable bracket for a total station, which can effectively reduce the degree of wear on the tip portion of the support leg during the use of the total station, thereby effectively ensuring the convenience of height adjustment and leveling of the bracket.

[0006] The present application provides an adjustable bracket for a total station, which adopts the following technical solution: An adjustable bracket for a total station, comprising three legs with rotation adjustment function and telescopic adjustment function, wherein the legs comprise a rotating rod and a telescopic rod, wherein the telescopic rod is slidably connected to the rotating rod, and further comprising three auxiliary devices, wherein the three auxiliary devices correspond to the three legs one by one; The auxiliary device comprises a seat body, two rotating members and a plurality of rotating blocks; The seat body is arranged at a position where the telescopic rod is away from the rotating rod, and when the telescopic rod slides to an extreme position in a direction close to the rotating rod, the seat body contacts and limits the rotating rod; The two rotating members are respectively arranged on both sides of the base body, the rotating member is rotatably connected to the base body, and the rotation axis thereof is perpendicular to the sliding direction of the corresponding telescopic rod; when the support foot contacts the plane, the rotating member rotates in a direction away from the corresponding telescopic rod and contacts the plane; The plurality of rotating blocks are respectively arranged on both sides of the rotating member, the rotating blocks are rotatably connected to the rotating member, and their rotation axes are perpendicular to the rotation axis of the rotating member; when the rotating member contacts the plane, the rotating blocks rotate in a direction away from the corresponding rotating member and then contact the plane.

[0007] By adopting the above technical solution, when the total station is in use, the auxiliary device can provide auxiliary support for the bracket, expand the contact area between the bracket and the plane, and effectively reduce the degree of wear on the tip of the support foot during the use of the total station, thereby effectively ensuring the convenience of height adjustment and leveling of the bracket.

[0008] Optionally, one end of the rotating member in the length direction is rotatably connected to the base body, and the center of gravity of the rotating member is offset in a direction away from the base body.

[0009] By adopting the above technical solution, the rotating part can be easily rotated to contact the plane, and the effect of maintaining contact between the rotating part and the plane can be effectively improved, thereby effectively improving the reliability of the auxiliary device in providing auxiliary support for the bracket.

[0010] Optionally, the auxiliary device further includes two resistance increasing members and two air bags corresponding to the two rotating members one by one; The resistance increasing member is arranged on a side of the seat body close to the corresponding rotating member, is a cylindrical structure, and its axis coincides with the rotating axis of the corresponding rotating member, and has a rough surface; A cavity for setting the airbag is opened inside the rotating part, and the cavity is formed with openings for the airbag to enter and exit at one end of the rotating part close to the resistance-increasing part and at another end away from the resistance-increasing part; when the airbag is not squeezed, part of it passes through the opening of the cavity away from the resistance-increasing part to contact the plane; after the airbag contacts the plane and is squeezed, part of it passes through the opening of the cavity close to the resistance-increasing part to contact the resistance-increasing part.

[0011] By adopting the above technical solution, after the rotating part rotates to contact the plane, the friction force generated by the contact between the airbag and the resistance-increasing part can be used to position the rotating part relative to the seat body, thereby further improving the effect of the rotating part maintaining contact with the plane; and, after the rotating part contacts the plane, the airbag can be used to further expand the contact area between the bracket and the plane, and the friction force between the bracket and the plane can be increased, thereby further effectively improving the auxiliary support effect of the auxiliary device for the bracket, and further improving the position stability of the bracket on the plane.

[0012] Optionally, the auxiliary device further includes two first dampers corresponding one-to-one to the two rotating members; The rotating member is rotatably connected to the seat body through the first damper, and the first damper is used to form resistance when the rotating member rotates in a direction away from the telescopic rod.

[0013] By adopting the above technical solution, the rotating part can rotate more slowly under its own gravity until it contacts the plane, thereby reducing the probability that the impact force between the rotating part and the plane affects the position accuracy of the bracket on the plane.

[0014] Optionally, the auxiliary device further comprises four sliding members, and each of the rotating members is provided with two of the sliding members; The two sliding members are respectively slidably arranged on both sides of the rotating member, and the sliding direction of the sliding members is parallel to the rotation axis of the adjacent rotating blocks; the sliding member is a cylindrical structure, which is penetrated and matched with the adjacent multiple rotating blocks, and its sliding direction is parallel to its own axis direction, and its axis coincides with the rotation axis of the adjacent multiple rotating blocks; The sliding member includes a plurality of smooth segments and a plurality of rough segments corresponding to the adjacent plurality of rotating blocks one by one, and the plurality of smooth segments and the plurality of rough segments are distributed at intervals; during the sliding process of the sliding member, the adjacent rotating members are alternately fitted with the corresponding smooth segments and the corresponding rough segments.

[0015] By adopting the above technical solution, the operator can conveniently control the freedom of rotation of the rotating block relative to the rotating member, thereby improving the position stability of the rotating block relative to the rotating member when the rotating block contacts the plane, and further improving the reliability of the auxiliary device in providing auxiliary support for the bracket.

[0016] Optionally, one end of the sliding member is an operating end, and the operating end is located on a side of the corresponding rotating member close to the seat body.

[0017] By adopting the above technical solution, it is convenient for the operator to control the sliding of the sliding member, and the force applied to the rotating member by the operator during the process of controlling the sliding of the sliding member can further improve the position stability of the rotating member relative to the seat body.

[0018] Optionally, one end of the rotating block in the length direction is rotatably connected to the rotating member, and the center of gravity of the rotating block is offset in a direction away from the rotating member.

[0019] By adopting the above technical solution, the rotating block can be easily rotated to contact the plane, and the effect of maintaining contact between the rotating block and the plane can be effectively improved, thereby further effectively improving the reliability of the auxiliary device in providing auxiliary support for the bracket.

[0020] Optionally, the auxiliary device further includes a plurality of second dampers corresponding one-to-one to the plurality of rotating blocks; The rotating block is rotatably connected to the rotating member via the second damper, and the second damper is used to form resistance when the rotating block rotates in a direction away from the rotating member.

[0021] By adopting the above technical solution, the rotating block can rotate more slowly under its own gravity until it contacts the plane, thereby reducing the probability that the impact force between the rotating block and the plane affects the position accuracy of the bracket on the plane.

[0022] Optionally, when the plurality of rotating blocks are rotated to the extreme positions toward the corresponding rotating members and the two rotating members are rotated to the extreme positions toward the telescopic rod, a clearance space adapted to the end of the rotating rod is formed inside the auxiliary device.

[0023] By adopting the above technical solution, the auxiliary device can be conveniently folded up when the total station is not in use, and the extra space occupied by the auxiliary device after it is folded can be effectively reduced, which is convenient for storing the total station; at the same time, after the auxiliary device is folded up, it can protect the position where the rotating part and the telescopic rod are slidably connected, thereby reducing the probability of the telescopic adjustment effect of the bracket being affected by the entry of impurities.

[0024] Optionally, one end of the rotating block away from the rotating member is magnetic, and different rotating blocks on different rotating members are magnetically attracted to each other.

[0025] By adopting the above technical solution, after the auxiliary device is folded up, the magnetic attraction between the rotating blocks can improve the position stability of the auxiliary device at this time, so that the auxiliary device can maintain the folded state.

[0026] In summary, the present application includes at least one of the following beneficial effects: 1. It can expand the contact area between the bracket and the plane when the total station is in use, thereby effectively reducing the degree of wear on the tip of the support leg during the use of the total station, thereby effectively ensuring the convenience of height adjustment and leveling of the bracket; 2. It can effectively improve the reliability of the auxiliary device in providing auxiliary support for the bracket, and at the same time, it can effectively improve the position stability of the bracket on the plane when the total station is used; 3. It can effectively reduce the probability that the operator will affect the position stability of the bracket on the plane during the process of adjusting the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of an adjustable bracket for a total station in use according to an embodiment of the present application; Figure 2 is a cross-sectional view of an auxiliary device when an adjustable bracket for a total station according to an embodiment of the present application is used; Figure 3 It is a structural schematic diagram of an adjustable bracket for a total station in an embodiment of the present application when it is folded; Figure 4 It is a cross-sectional view of an auxiliary device when an adjustable bracket for a total station according to an embodiment of the present application is folded; Figure 5 It is a cross-sectional view of the rotating member in the embodiment of the present application.

[0028] Explanation of the reference numerals in the accompanying drawings: 1. Instrument body; 2. Bracket; 3. Plane; 4. Base; 5. Support foot; 51. Rotating rod; 52. Telescopic rod; 6. Auxiliary device; 61. Base; 62. Rotating member; 621. Cavity; 63. Rotating block; 64. Airbag; 65. Resistance-increasing member; 66. First damper; 67. Sliding member; 671. Smooth section; 672. Rough section; 673. Operating end; 68. Second damper; 69. Make way. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-5 This application is described in further detail.

[0030] The embodiment of the present application discloses an adjustable bracket for a total station, which is used to facilitate an operator to adjust the height position of an instrument body and to level the measurement direction of the instrument body.

[0031] Reference Figure 1 and Figure 2The adjustable support for the total station includes a base 4 and three legs 5, wherein the top of the base 4 is fixedly mounted on the instrument body 1; the legs 5 are mounted below the base 4, and have rotation adjustment functions and telescopic adjustment functions relative to the base 4, so as to achieve the above-mentioned adjustment effect of the support 2 on the instrument body 1. In this embodiment, the base 4 is preferably a disc structure as a whole, and the three legs 5 are preferably installed on the base 4 in a circumferential array relative to the base 4; since the instrument body 1 is a prior art in the art, it will not be described in detail here, and it is only briefly shown in the drawings.

[0032] Reference Figure 1 and Figure 3 The support leg 5 includes a rotating rod 51 and a telescopic rod 52, and the rotating rod 51 and the telescopic rod 52 are both rod-shaped structures; one end of the rotating rod 51 in the length direction is rotatably connected to the bottom of the base 4, and its rotation axis is perpendicular to its own length direction and perpendicular to the line connecting the connection position between it and the base 4 and the center point of the base 4; the telescopic rod 52 is slidably installed on the rotating rod 51, and one end of the telescopic rod 52 in the length direction away from the rotating rod 51 has a pointed structure; the length direction of the telescopic rod 52 is parallel to the length direction of the rotating rod 51, and can slide relative to the rotating rod 51 along its own length direction to achieve the telescopic effect of the support leg 5. In this embodiment, the telescopic rod 52 is preferably inserted and matched with the rotating rod 51, and during the sliding process of the telescopic rod 52 relative to the rotating rod 51, the end of the telescopic rod 52 close to the rotating rod 51 remains in sliding cooperation with the rotating rod 51, and the end of the telescopic rod 52 away from the rotating rod 51 remains on the side of the rotating rod 51 away from the base 4; since the existing telescopic adjustment methods of the support leg 5 mainly include manual adjustment and electric control adjustment, which is the prior art in the field, the telescopic adjustment method is not further limited here, and the relevant structure of the telescopic adjustment is omitted in the accompanying drawings.

[0033] The adjustable bracket for the total station also includes three auxiliary devices 6 for auxiliary support. The three auxiliary devices 6 correspond to the three legs 5 one by one, and the auxiliary devices 6 are installed at the position where the telescopic rod 52 is far away from the rotating rod 51.

[0034] Reference Figure 2 and Figure 4 The auxiliary device 6 includes a seat body 61, two rotating members 62 and a plurality of rotating blocks 63.

[0035] Reference Figure 4 and Figure 5 The seat body 61 is fixedly mounted on the telescopic rod 52 , and serves as a limit for the telescopic rod 52 to slide relative to the rotating rod 51 ; when the telescopic rod 52 slides to the limit position in the direction close to the rotating member 62 , the seat body 61 will contact and resist the rotating rod 51 .

[0036] Reference Figure 1 and Figure 2The rotating member 62 is an arc-shaped plate structure as a whole. The two rotating members 62 are respectively installed on both sides of the seat body 61, and are respectively located on both sides of the seat body 61 along the rotation direction of the rotating rod 51; one end of the rotating member 62 in the length direction is rotatably connected to the seat body 61, and the rotation axis of the rotating member 62 is parallel to the rotation axis of the corresponding rotating rod 51.

[0037] The rotating member 62 is limited in its rotation relative to the base 61. When the rotating member 62 rotates to the limit position in the direction close to the corresponding telescopic rod 52, the length direction of the rotating member 62 is parallel to the length direction of the corresponding telescopic rod 52, and the arc of the rotating member 62 faces the corresponding telescopic rod 52; when the tip structure of the telescopic rod 52 contacts the plane 3 on which the total station is placed, after the rotating member 62 rotates in the direction away from the corresponding telescopic rod 52, the end of the rotating member 62 away from the base 61 will contact the plane 3, playing the role of auxiliary support.

[0038] Furthermore, in order to improve the position stability of the rotating member 62 when it contacts the plane 3 and to improve the reliability of the auxiliary support effect of the rotating member 62 , the center of gravity of the rotating member 62 is preferably offset in a direction away from the base 4 .

[0039] At this time, the operator can conveniently control the rotating member 62 to rotate in a direction away from the corresponding telescopic rod 52, and after the rotating member 62 rotates to contact the plane 3, the reliability of the rotating member 62 maintaining contact with the plane 3 under the action of its own gravity is improved.

[0040] Reference Figure 2 and Figure 4 Furthermore, in order to further improve the position stability of the rotating member 62 when it contacts the plane 3, and at the same time improve the position stability of the bracket 2 after being placed on the plane 3, it is preferred that an airbag 64 is also installed inside the rotating member 62, and a resistance-enhancing member 65 is also installed on the base 4 corresponding to the airbag 64.

[0041] A cavity 621 is provided inside the rotating member 62 for installing the airbag 64. The cavity 621 has openings at both ends in the length direction of the rotating member 62, and the parts of the airbag 64 close to the opening can enter and exit the opening; the interior of the airbag 64 is filled with gas, which is elastic and in an inflated state; the resistance-enhancing member 65 is a cylindrical structure as a whole with a rough surface. It is fixedly connected to the seat body 61 and is located on the side of the corresponding rotating member 62 close to the seat body 61, and its axis coincides with the rotation axis of the corresponding rotating member 62.

[0042] When the rotating member 62 is not in contact with the plane 3 , the airbag 64 inside it will be in a state of partially protruding from the opening on the side of the rotating member 62 away from the seat body 61 . At this time, the side of the airbag 64 close to the seat body 61 is located in the cavity 621 and maintains a distance from the resistance increasing member 65 .

[0043] When the rotating member 62 contacts the plane 3, the part of the airbag 64 located on the side of the rotating member 62 away from the seat body 61 will contact the plane 3 and be squeezed under the action of the gravity of the rotating member 62. At this time, the contact area between the rotating member 62 and the plane 3 is enlarged, the auxiliary support effect of the rotating member 62 is improved, and the friction between the bracket 2 and the plane 3 is also increased; after the airbag 64 is squeezed, the part of the airbag 64 close to the seat body 61 will pass through the opening and contact the surface of the corresponding resistance-increasing member 65. At this time, the friction between the airbag 64 and the resistance-increasing member 65 forms a resistance to the rotation of the rotating member 62 relative to the seat body 61, which can effectively improve the relative position stability between the rotating member 62 and the seat body 61 at this time.

[0044] Reference Figure 2 and Figure 5 Furthermore, in order to reduce the impact force between the rotating member 62 and the plane 3 due to the excessive rotation speed when the rotating member 62 rotates to contact the plane 3, thereby affecting the position accuracy of the bracket 2 on the plane 3, a first damper 66 is preferably installed between the rotating member 62 and the seat body 61.

[0045] The rotating member 62 is rotatably connected to the seat body 61 via the first damper 66, and the first damper 66 can form resistance when the rotating member 62 rotates in a direction away from the corresponding telescopic rod 52, so as to slow down the rotation speed of the rotating member 62. In this embodiment, since the first damper 66 with the above-mentioned function is a common prior art, it will not be described in detail here, and it is only briefly shown in the drawings.

[0046] Reference Figure 1 and Figure 2 The rotating block 63 has an arc-shaped structure, and multiple rotating blocks 63 are respectively installed on both sides of the arc-shaped trajectory of the rotating member 62. The multiple rotating blocks 63 are evenly spaced on the rotating member 62 along the length direction of the rotating member 62, and the multiple rotating blocks 63 are symmetrically distributed on both sides of the rotating member 62; one end of the arc-shaped trajectory of the rotating block 63 is rotatably connected to the rotating member 62, the rotation axis of the rotating block 63 is parallel to the length direction of the rotating member 62, and the rotation axes of multiple rotating blocks 63 located on the same side of the rotating member 62 coincide.

[0047] Reference Figure 1 and Figure 3, the rotation of the rotating block 63 relative to the rotating member 62 is limited. When the rotating block 63 rotates to the extreme position in the direction close to the corresponding rotating member 62, the rotating block 63 and the corresponding rotating member 62 form an arc-shaped plate structure together; when the rotating member 62 contacts the plane 3, after the rotating block 63 rotates in the direction away from the corresponding rotating member 62, the end of the rotating block 63 away from the rotating member 62 can contact the plane 3, further playing the role of auxiliary support. In this embodiment, it is preferred that when the rotating member 62 contacts the plane 3, at least the two rotating blocks 63 located at the end of the rotating member 62 away from the seat body 61 can contact the plane 3 after rotation.

[0048] Reference Figure 1 and Figure 2 Furthermore, in order to improve the position stability of the rotating block 63 when it contacts the plane 3 and to improve the reliability of the auxiliary support effect of the rotating block 63, the center of gravity of the rotating block 63 is preferably offset in a direction away from the corresponding rotating member 62.

[0049] At this time, the operator can conveniently control the rotating block 63 to rotate in a direction away from the corresponding rotating member 62, and after the rotating block 63 rotates to contact the plane 3, the reliability of the rotating block 63 maintaining contact with the plane 3 under the action of its own gravity is improved.

[0050] Reference Figure 2 and Figure 5 Furthermore, in order to further improve the position stability of the rotating block 63 after rotation relative to the corresponding rotating member 62, it is preferred that a plurality of rotating blocks 63 corresponding to the same side of the rotating member 62 are equipped with a sliding member 67.

[0051] The sliding member 67 is a cylindrical structure as a whole. It is penetrated and cooperated with the rotating member 62 and at the same time penetrated and cooperated with multiple rotating blocks 63 on the same side. Its axis coincides with the rotation axis of the corresponding multiple rotating blocks 63; the sliding member 67 is slidably connected to the rotating member 62, and its sliding direction is parallel to its own axial direction, and during its sliding relative to the rotating member 62, a portion of it is kept outside the rotating member 62.

[0052] The portion where the sliding member 67 and the rotating member 62 are penetrated and matched has a plurality of smooth sections 671 and a plurality of rough sections 672 corresponding to the corresponding plurality of rotating blocks 63 one by one. The surface of the smooth section 671 is smooth and the surface of the rough section 672 is rough. The plurality of smooth sections 671 and the plurality of rough sections 672 are alternately distributed along the axial direction of the sliding member 67, and adjacent smooth sections 671 and rough sections 672 are connected. During the sliding process of the sliding member 67 relative to the rotating member 62, the rotating block 63 can be alternately fitted with the corresponding smooth section 671 and the corresponding rough section 672. When the rotating block 63 is fitted with the smooth section 671, the rotating block 63 can rotate freely relative to the rotating member 62. When the rotating block 63 is fitted with the rough section 672, the friction between the rotating block 63 and the sliding member 67 increases, so that the current relative position relationship between the rotating block 63 and the corresponding rotating member 62 can be maintained.

[0053] The sliding member 67 has a limit in the process of sliding relative to the rotating member 62. When the sliding member 67 slides to the extreme position in the direction close to the rotating member 62, the rotating block 63 on the same side will be sleeved and matched with the corresponding rough section 672; when the sliding member 67 slides to the extreme position in the direction away from the rotating member 62, the rotating block 63 on the same side will be sleeved and matched with the corresponding smooth section 671. In this embodiment, it is preferred that one end of the sliding member 67 passes through the side of the corresponding rotating member 62 close to the seat body 61 to form an operating end 673 that is convenient for the operator to control its sliding, and it is preferred that the operating end 673 remains located outside the rotating member 62 during the sliding of the sliding member 67 relative to the rotating member 62.

[0054] Before controlling the rotating member 62 to rotate to contact the plane 3, the operator first controls the sliding member 67 to slide to the extreme position in the direction away from the rotating member 62; after the rotating member 62 contacts the plane 3, the multiple rotating blocks 63 can rotate relative to the rotating member 62 under the action of their own gravity to contact the plane 3; after the rotating block 63 contacts the plane 3, the operator controls the sliding member 67 to slide to the extreme position in the direction close to the rotating member 62, so that the relative position between the rotating block 63 and the rotating member 62 is fixed.

[0055] At this time, when the operator controls the sliding member 67 to slide toward the rotating member 62 while the rotating member 62 is in contact with the plane 3, the force applied to the rotating member 62 can drive the airbag 64 to be further squeezed, thereby further improving the contact degree between the airbag 64 and the resistance increasing member 65, and further effectively ensuring that the rotating member 62 can maintain a stable relative position during this process.

[0056] Furthermore, in order to reduce the impact force between the rotating block 63 and the plane 3 due to the excessive rotation speed when the rotating block 63 rotates to contact the plane 3, thereby affecting the position accuracy of the bracket 2 on the plane 3, a second damper 68 is preferably installed between the rotating block 63 and the rotating member 62.

[0057] The rotating block 63 is rotatably connected to the rotating member 62 via the second damper 68, and the second damper 68 can form resistance when the rotating block 63 rotates in a direction away from the corresponding rotating member 62, so as to slow down the rotation speed of the rotating block 63. In this embodiment, since the second damper 68 having the above-mentioned function is a common prior art, it will not be described in detail here, and it is only briefly shown in the drawings.

[0058] Reference Figure 3 and Figure 4 Furthermore, in order to facilitate the folding of the auxiliary device 6 when the total station is not in use and reduce the extra space occupied by the auxiliary device 6 when the total station is not in use, it is preferred that when the rotating member 62 rotates to the extreme position in the direction close to the corresponding telescopic rod 52 and the multiple rotating blocks 63 all rotate to the extreme position in the direction close to the corresponding rotating member 62, the two rotating members 62 and the multiple rotating blocks 63 on the two rotating members 62 will jointly form a sleeve-shaped structure, and at this time, a makeshift space 69 adapted to the rotating rod 51 is formed inside the auxiliary device 6, so that after the telescopic rod 52 slides to the extreme position in the direction close to the rotating rod 51, the auxiliary device 6 will embrace the corresponding rotating rod 51, and at the same time, the probability of external debris entering the gap between the telescopic rod 52 and the rotating rod 51 can be effectively reduced.

[0059] Furthermore, in order to improve the relative position stability of the auxiliary device 6 after it is folded, it is preferred that the end of the rotating block 63 away from the corresponding rotating member 62 has magnetism.

[0060] Among the multiple rotating members 62 on the same side of the same rotating member 62, the magnetism of adjacent rotating blocks 63 is opposite, so that there is a magnetic attraction effect between adjacent rotating blocks 63. The magnetic attraction between adjacent rotating blocks 63 can further improve the effect of maintaining contact between the multiple rotating blocks 63 and the plane 3.

[0061] Among the multiple rotating blocks 63 on the two rotating members 62 on the same auxiliary device 6, when the rotating member 62 rotates to the extreme position in the direction close to the corresponding telescopic rod 52 and the multiple rotating blocks 63 all rotate to the extreme position in the direction close to the corresponding rotating member 62, the adjacent rotating blocks 63 on different rotating members 62 will contact each other and be magnetically attracted to each other, so that the auxiliary device 6 can remain in the retracted state, and at this time, controlling the sliding member 67 to rotate to the extreme position in the direction close to the corresponding rotating member 62 can further improve the stability of the auxiliary device 6 in maintaining the current state.

[0062] The implementation principle of an adjustable bracket for a total station in the embodiment of the present application is as follows: When using the total station, place the bracket 2 on the plane 3. After the operator completes the height adjustment of the instrument body 1 and the leveling of the measurement direction by adjusting the bracket 2, first apply force to the rotating member 62 in the direction away from the corresponding telescopic rod 52, so that the rotating member 62 can overcome the resistance of the first damper 66 under the action of its own gravity and slowly rotate until the rotating member 62 contacts the plane 3, and the positioning of the rotating member 62 is achieved by the airbag 64 being squeezed and deformed and contacting the resistance-increasing member 65; then control the sliding member 67 to slide in the direction away from the rotating member 62 until The limit position makes the rotating block 63 fit with the smooth section 671 on the sliding member 67, and the rotating block 63 will slowly rotate under the action of its own gravity to overcome the resistance of the second damper 68 until the rotating block 63 also contacts the plane 3, and then the sliding member 67 is controlled to slide to the limit position in the direction close to the rotating member 62, so that the rotating block 63 fits with the rough section 672 on the sliding member 67 to achieve the positioning of the rotating block 63. At this time, the auxiliary device 6 can play an auxiliary supporting effect on the bracket 2 and can help the bracket 2 to be positioned on the plane 3; When the total station is not in use, first control the multiple rotating blocks 63 to rotate to the extreme position in the direction close to the corresponding rotating member 62, then control the sliding member 67 to slide in the direction close to the corresponding rotating member 62 to position the rotating block 63, and then control the rotating member 62 to rotate to the extreme position in the direction close to the corresponding telescopic rod 52; at this time, the two rotating members 62 on the same auxiliary device 6 will be connected through the magnetic attraction between their respective multiple rotating blocks 63, and after the telescopic rod 52 is controlled to move in the direction close to the rotating rod 51, the end of the rotating rod 51 can enter the make way space 69 formed by the auxiliary device 6, so as to reduce the extra space occupied by the auxiliary device 6 after the auxiliary device 6 is folded, and at the same time, it can provide a certain protection effect on the normal use of the support leg 5.

[0063] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An adjustable bracket for a total station, comprising three legs (5) having rotation adjustment function and telescopic adjustment function, wherein the legs (5) comprise a rotating rod (51) and a telescopic rod (52), and the telescopic rod (52) is slidably connected to the rotating rod (51), characterized in that: It also includes three auxiliary devices (6), and the three auxiliary devices (6) correspond one to one to the three supporting feet (5); The auxiliary device (6) comprises a seat body (61), two rotating members (62) and a plurality of rotating blocks (63); The seat body (61) is arranged at a position where the telescopic rod (52) is away from the rotating rod (51), and when the telescopic rod (52) slides in a direction close to the rotating rod (51) to an extreme position, the seat body (61) contacts the rotating rod (51) to limit the position; The two rotating members (62) are respectively arranged on both sides of the base (61); the rotating member (62) is rotatably connected to the base (61), and its rotation axis is perpendicular to the sliding direction of the corresponding telescopic rod (52); when the support foot (5) contacts the plane (3), the rotating member (62) rotates in a direction away from the corresponding telescopic rod (52) and contacts the plane (3); A plurality of rotating blocks (63) are respectively arranged on both sides of the rotating member (62); the rotating blocks (63) are rotatably connected to the rotating member (62), and their rotation axes are perpendicular to the rotation axis of the rotating member (62); when the rotating member (62) contacts the plane (3), the rotating blocks (63) rotate in a direction away from the corresponding rotating member (62) and then contact the plane (3).

2. The adjustable bracket for a total station according to claim 1, characterized in that: One end of the rotating member (62) in the length direction is rotatably connected to the seat body (61), and the center of gravity of the rotating member (62) is offset in a direction away from the seat body (61).

3. The adjustable bracket for a total station according to claim 2, characterized in that: The auxiliary device (6) further comprises two resistance-increasing members (65) and two air bags (64) corresponding one-to-one to the two rotating members (62); The resistance increasing member (65) is arranged on a side of the seat body (61) close to the corresponding rotating member (62), is a cylindrical structure, and its axis coincides with the rotation axis of the corresponding rotating member (62), and has a rough surface; A cavity (621) for arranging the airbag (64) is provided inside the rotating member (62), and openings for the airbag (64) to enter and exit are formed in the cavity (621) at one end of the rotating member (62) close to the resistance-increasing member (65) and at one end away from the resistance-increasing member (65); when the airbag (64) is not squeezed, part of it passes through the opening at the end of the cavity (621) away from the resistance-increasing member (65) to contact the plane (3); when the airbag (64) contacts the plane (3) and is squeezed, part of it passes through the opening at the end of the cavity (621) close to the resistance-increasing member (65) to contact the resistance-increasing member (65).

4. The adjustable bracket for a total station according to claim 2, characterized in that: The auxiliary device (6) further comprises two first dampers (66) corresponding one-to-one to the two rotating members (62); The rotating member (62) is rotationally connected to the seat body (61) via the first damper (66), and the first damper (66) is used to form resistance when the rotating member (62) rotates in a direction away from the telescopic rod (52).

5. The adjustable bracket for a total station according to claim 1, characterized in that: The auxiliary device (6) further comprises four sliding members (67), and each of the rotating members (62) is provided with two of the sliding members (67); The two sliding members (67) are respectively slidably arranged on both sides of the rotating member (62), and the sliding direction of the sliding member (67) is parallel to the rotation axis of the adjacent rotating block (63); the sliding member (67) is a cylindrical structure, which is penetrated and matched with the adjacent plurality of rotating blocks (63), and its sliding direction is parallel to its own axis direction, and its axis coincides with the rotation axis of the adjacent plurality of rotating blocks (63); The sliding member (67) comprises a plurality of smooth sections (671) and a plurality of rough sections (672) corresponding one-to-one to the plurality of adjacent rotating blocks (63), and the plurality of smooth sections (671) and the plurality of rough sections (672) are distributed at intervals; during the sliding process of the sliding member (67), the adjacent rotating members (62) are alternately fitted with the corresponding smooth sections (671) and the corresponding rough sections (672).

6. The adjustable bracket for total station according to claim 5, characterized in that: One end of the sliding member (67) is an operating end (673), and the operating end (673) is located on a side of the corresponding rotating member (62) close to the seat body (61).

7. The adjustable bracket for a total station according to claim 1, characterized in that: One end of the rotating block (63) in the length direction is rotatably connected to the rotating member (62), and the center of gravity of the rotating block (63) is offset in a direction away from the rotating member (62).

8. The adjustable bracket for total station according to claim 7, characterized in that: The auxiliary device (6) further comprises a plurality of second dampers (68) corresponding one-to-one to the plurality of rotating blocks (63); The rotating block (63) is rotationally connected to the rotating member (62) via the second damper (68), and the second damper (68) is used to form resistance when the rotating block (63) rotates in a direction away from the rotating member (62).

9. The adjustable bracket for a total station according to claim 1, characterized in that: When the plurality of rotating blocks (63) are all rotated to the extreme position towards the corresponding rotating members (62) and the two rotating members (62) are all rotated to the extreme position towards the direction towards the telescopic rod (52), a clearance space (69) adapted to the end of the rotating rod (51) is formed inside the auxiliary device (6).

10. The adjustable bracket for total station according to claim 9, characterized in that: One end of the rotating block (63) away from the rotating member (62) is magnetic, and different rotating blocks (63) on different rotating members (62) are magnetically attracted to each other.

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