Positioning device for surveying instrument

Abstract

A positioning mechanism comprises a top plate, the outer side of the bottom face of the top plate is fixedly connected with a clamping piece, the middle of the bottom face of the top plate is rotationally connected with a rotating ring, the side edge of the rotating ring is fixedly connected with a positioning plate, and the side, away from the rotating ring, of the positioning plate is in an arc shape. The position, close to the positioning plate, of the bottom of the top plate is fixedly connected with an abutting shaft, the outer side wall of the abutting shaft movably makes contact with the end of the positioning plate, one end of the side edge of the rotating ring is further fixedly connected with a push rod, and the end, away from the rotating ring, of the push rod extends to the position above the top plate. When the tripod is transported, the positioning plate on the side edge of the rotating ring abuts against the inner side of the limiting hook, so that the rotation of the rotating rod is limited and locked, then an inserting rod is arranged in the positioning mechanism to lock the push rod, and therefore it is guaranteed that in the transportation process of the tripod, the rotating rod and the telescopic foot cannot be scattered due to vibration.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering surveying and mapping, in particular to a positioning device for a surveying instrument. Background Art

[0002] A surveying instrument is a precision instrument used for engineering surveying and mapping, and is widely used in fields such as land surveying, building planning, and infrastructure construction. Through technologies such as laser, optics, and satellite positioning, it can accurately measure data such as terrain, distance, angle, and elevation. Engineers use surveying instruments to draw maps, develop construction plans, and ensure the accuracy and safety of buildings and other engineering structures.

[0003] When in use, a surveying instrument usually needs to be equipped with a bottom tripod for positioning, and the support legs inside the tripod can be folded and stored for easy transportation. However, the common tripod support frame lacks a fixed structure after being folded. As a result, the tripod is easily scattered after being vibrated during transportation, and is then easily bumped into other objects, eventually causing damage to the tripod or other objects. Therefore, a positioning device for a surveying instrument is proposed to solve the above problem. Utility Model Content

[0004] The technical problems to be solved by the present invention are as follows: the common tripod support frame lacks a fixed structure after being folded, so that the tripod is easily scattered after being vibrated during transportation, and is then easily bumped into other objects, eventually causing damage to the tripod or other objects.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A positioning device for a surveying instrument, comprising a positioning mechanism, a supporting mechanism being provided below the positioning mechanism; and further comprising:

[0007] The positioning mechanism includes a top plate, a clamping member is fixedly connected to the outer side of the bottom surface of the top plate, and a total of three clamping members are provided, and the clamping members are arranged in an equidistant ring. A rotating ring is rotatably connected to the middle part of the bottom surface of the top plate, and a positioning plate is fixedly connected to the side of the rotating ring. The positioning plates are provided in a total of three, and each of the positioning plates is equidistantly arranged along the outer side of the rotating ring. The positioning plate is located on the side away from the rotating ring and is arc-shaped;

[0008] Wherein, an abutment shaft is fixedly connected to the bottom of the top plate near the positioning plate, and the outer side wall of the abutment shaft is in movable contact with the end of the positioning plate;

[0009] One end of the side of the rotating ring is also fixedly connected to a push rod, and the push rod is located at an end away from the rotating ring and extends to above the top plate.

[0010] As a further solution of the present invention: an arc-shaped groove is opened on one side of the outer wall of the top plate, the inner side of the arc-shaped groove is slidably connected to the push rod, the top surface of the top plate is fixedly connected to a limiting sleeve near the arc-shaped groove, the inner wall of the limiting sleeve is slidably connected to an insertion rod, and one end of the insertion rod is plugged into the inner wall of the upper end of the push rod.

[0011] As a further solution of the present invention: the inner wall of the limit sleeve is fixedly connected with a spring, the spring sleeve is arranged on the outside of the insertion rod, and one side of the spring is also fixedly connected to the outer wall of the insertion rod, and the end of the insertion rod close to the push rod is provided with a slope.

[0012] As a further solution of the present invention: a positioning screw is connected through the middle inner wall of the top plate, the bottom end of the positioning screw extends to the bottom of the top plate, and the bottom end of the positioning screw is fixedly connected to a knob 1.

[0013] As a further solution of the present invention: the supporting mechanism includes a rotating rod, and there are three rotating rods in total. The top of each rotating rod is rotatably connected to the inner side of the clamping member, and the inner side of the surface of each rotating rod is fixedly connected to a limiting hook, and the inner side of each limiting hook is respectively against the positioning plate.

[0014] As a further solution of the present invention: the inner wall of each rotating rod is slidably connected with a telescopic foot, the bottom end of the telescopic foot extends to the bottom of the rotating rod, and the middle part of the outer wall of each telescopic foot is provided with an abutment groove.

[0015] As a further solution of the present invention: the lower end of the surface of the rotating rod is threadedly connected to a tightening screw, one end of the tightening screw extends to the outside of the rotating rod and is fixedly connected to knob 2, the other end of the tightening screw is rotatably connected to a support plate, and the support plate is located on a side away from the tightening screw and abuts against the inner side of the support groove.

[0016] Beneficial effects of the utility model:

[0017] The utility model consists of a positioning mechanism and a supporting mechanism. The surveying instrument is installed and fixed above the positioning mechanism, and the rotating rod and the telescopic legs in the supporting mechanism jointly support the surveying instrument after being unfolded. When the rotating rod is retracted, the limit hook on the surface of the rotating rod approaches the rotating ring. At this time, the rotating ring is driven to rotate by pushing the push rod, and the positioning plate on the side of the rotating ring abuts against the inner side of the limit hook, thereby limiting and locking the rotation of the rotating rod. The push rod is then locked by an insertion rod provided in the positioning mechanism, thereby ensuring that the rotating rod and the telescopic legs will not fall apart due to vibration during transportation of the tripod. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the top plate of the utility model when viewed from above;

[0021] Figure 3 This is a schematic diagram of the top plate structure in the utility model from a top view;

[0022] Figure 4 This is a schematic diagram of the internal structure of the limit sleeve in the utility model;

[0023] Figure 5 This is a side view of the structure of the knob 2 in the present invention;

[0024] Figure 6 It is a schematic diagram of the overall structure of the telescopic foot in the utility model.

[0025] In the figure: 1. Positioning mechanism; 101. Top plate; 102. Clamping member; 103. Arc groove; 104. Rotating ring; 105. Positioning plate; 106. Abutment shaft; 107. Push rod; 108. Limiting sleeve; 109. Insert rod; 110. Spring; 111. Knob 1; 112. Positioning screw; 2. Support mechanism; 201. Rotating rod; 202. Tightening screw; 203. Knob 2; 204. Abutment plate; 205. Telescopic foot; 206. Abutment groove; 207. Limiting hook. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] like Figure 1-6As shown, a positioning device for a surveying instrument includes a positioning mechanism 1, a supporting mechanism 2 is provided below the positioning mechanism 1; the positioning mechanism 1 also includes: the positioning mechanism 1 includes a top plate 101, a clamping member 102 is fixedly connected to the outer side of the bottom surface of the top plate 101, a total of three clamping members 102 are provided, and the clamping members 102 are arranged in an equidistant ring arrangement, a rotating ring 104 is rotatably connected to the middle of the bottom surface of the top plate 101, and a positioning plate 105 is fixedly connected to the side of the rotating ring 104, and the positioning plate 105 is provided with a total of There are three positioning plates 105, and each positioning plate 105 is arranged equidistantly along the outer side of the rotating ring 104. The positioning plate 105 is located on the side away from the rotating ring 104 and is arc-shaped. Among them, the bottom of the top plate 101 and close to the positioning plate 105 are fixedly connected to the anti-shaft 106, and the outer wall of the anti-shaft 106 is in active contact with the end of the positioning plate 105; one end of the side of the rotating ring 104 is also fixedly connected to a push rod 107, which is located at the end away from the rotating ring 104 and extends to the top of the top plate 101. Figure 2 As shown, the outer side of the shaft 106 is wrapped with a rubber layer, thereby limiting the rotation angle of the positioning plate 105;

[0028] An arc-shaped groove 103 is provided on one side of the outer wall of the top plate 101, and the inner side of the arc-shaped groove 103 is slidably connected to the push rod 107. A limiting sleeve 108 is fixedly connected to the top surface of the top plate 101 near the arc-shaped groove 103. The inner wall of the limiting sleeve 108 is slidably connected to a plug rod 109. One end of the plug rod 109 is plugged into the inner wall of the upper end of the push rod 107. A spring 110 is fixedly connected to the inner wall of the limiting sleeve 108. The spring 110 is sleeved on the outside of the plug rod 109, and one side of the spring 110 is also fixedly connected to the outer wall of the plug rod 109. The end of the plug rod 109 close to the push rod 107 is provided with an inclined surface. Figure 3-Figure 4 As shown, when the push rod 107 rotates along the arc groove 103, the push rod 107 squeezes the side slope of the insertion rod 109, thereby facilitating the push rod 107 to continue rotating so that the internal blind hole is aligned with the insertion rod 109;

[0029] A positioning screw 112 is connected through the inner wall of the middle portion of the top plate 101 , and the bottom end of the positioning screw 112 extends to the bottom of the top plate 101 , and the bottom end of the positioning screw 112 is fixedly connected to a knob 111 .

[0030] The support mechanism 2 includes a rotating rod 201, and there are three rotating rods 201. The top of each rotating rod 201 is rotatably connected to the inner side of the clamping member 102. Figure 1As shown, the clamping member 102 is provided with a limit plate on the outside of each rotating rod 201, thereby limiting the maximum expansion angle of the rotating rod 201. The inner side of the surface of each rotating rod 201 is fixedly connected to a limit hook 207, and the inner side of each limit hook 207 abuts against the positioning plate 105. The inner wall of each rotating rod 201 is slidably connected to a telescopic foot 205, the bottom end of the telescopic foot 205 extends to the bottom of the rotating rod 201, and the middle part of the outer wall of each telescopic foot 205 is provided with a support groove 206. The lower end of the surface of the rotating rod 201 is threadedly connected to a tightening screw 202, one end of the tightening screw 202 extends to the outside of the rotating rod 201 and is fixedly connected to the knob 203, and the other end of the tightening screw 202 is rotatably connected to the support plate 204, and the support plate 204 is located on the side away from the tightening screw 202 and abuts against the inner side of the support groove 206, as shown in FIG. Figure 5 As shown, the surface of the abutting plate 204 is wrapped with a silicone layer, thereby increasing the friction force when the abutting plate 204 contacts the abutting groove 206 .

[0031] The working principle of this utility model:

[0032] When the tripod is stored, the push rod 107 drives the rotating ring 104 to rotate, and the positioning plate 105 and the limit hook 207 are staggered, so that the rotating rod 201 is rotated and stored in place at the bottom of the clamping part 102. After the rotating rod 201 is completely stored under the top plate 101, the push rod 107 is pushed in the opposite direction, and the rotating ring 104 drives the side positioning plate 105 to rotate and insert into the inner side of the limit hook 207. At this time, the rotating rod 201 can no longer be clamped under the clamping part 102. The direction is turned outward. When the rotating ring 104 is rotated into place, the push rod 107 pushes the inclined surface at the end of the insertion rod 109. The push rod 107 is squeezed and slides inside the limiting sleeve 108. The spring 110 is compressed. When the blind hole on the side of the push rod 107 is aligned with the insertion rod 109, the spring 110 releases its elastic potential energy to drive the end of the push rod 107 to insert into the inner wall of the push rod 107. At this time, the push rod 107 cannot move, so that the rotating rod 201 is fixed under the top plate 101.

[0033] Secondly, when the rotating rod 201 is unfolded, the telescopic foot 205 is extended and retracted at the bottom of the rotating rod 201, thereby adjusting the overall height of the tripod. Turn the second knob 203, tighten the screw 202 and insert it into the rotating rod 201, so that the support plate 204 is pressed into the support groove 206, so that the telescopic foot 205 and the rotating rod 201 remain relatively fixed. Place the surveyor in the middle of the top surface of the top plate 101, and then tighten the first knob 111 so that the positioning screw 112 is screwed into the bottom of the surveyor, so that the surveyor and the top plate 101 remain fixed.

[0034] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. A positioning device for a surveying instrument, comprising a positioning mechanism (1), wherein a supporting mechanism (2) is provided below the positioning mechanism (1); It is characterized by: Also includes: The positioning mechanism (1) comprises a top plate (101), a clamping member (102) is fixedly connected to the outer side of the bottom surface of the top plate (101), three clamping members (102) are provided in total, and the clamping members (102) are arranged in an equidistant ring shape, a rotating ring (104) is rotatably connected to the middle part of the bottom surface of the top plate (101), a positioning plate (105) is fixedly connected to the side of the rotating ring (104), three positioning plates (105) are provided in total, and each positioning plate (105) is arranged equidistantly along the outer side of the rotating ring (104), and the positioning plate (105) is located on a side away from the rotating ring (104) and is arc-shaped; Wherein, a stop shaft (106) is fixedly connected to the bottom of the top plate (101) and close to the positioning plate (105), and the outer side wall of the stop shaft (106) is in movable contact with the end of the positioning plate (105); One end of the side of the rotating ring (104) is also fixedly connected to a push rod (107), and the push rod (107) is located at an end away from the rotating ring (104) and extends above the top plate (101).

2. A positioning device for a surveying instrument according to claim 1, characterized in that: An arcuate groove (103) is provided on one side of the outer wall of the top plate (101), and the inner side of the arcuate groove (103) is slidably connected to the push rod (107). A limiting sleeve (108) is fixedly connected to the top surface of the top plate (101) near the arcuate groove (103), and an inserting rod (109) is slidably connected to the inner wall of the limiting sleeve (108), and one end of the inserting rod (109) is plugged into the inner wall of the upper end of the push rod (107).

3. A positioning device for a surveying instrument according to claim 2, characterized in that: The inner wall of the limiting sleeve (108) is fixedly connected with a spring (110), and the spring (110) is sleeved on the outside of the insertion rod (109), and one side of the spring (110) is also fixedly connected to the outer wall of the insertion rod (109). The insertion rod (109) is provided with an inclined surface at one end close to the push rod (107).

4. A positioning device for a surveying instrument according to claim 1, characterized in that: A positioning screw (112) is connected through the middle inner wall of the top plate (101), the bottom end of the positioning screw (112) extends to the bottom of the top plate (101), and the bottom end of the positioning screw (112) is fixedly connected to a knob (111).

5. The positioning device for a surveying instrument according to claim 1, characterized in that: The support mechanism (2) includes a rotating rod (201), and there are three rotating rods (201) in total. The top of each rotating rod (201) is rotatably connected to the inner side of the clamping member (102), and the inner side of the surface of each rotating rod (201) is fixedly connected to a limiting hook (207), and the inner side of each limiting hook (207) is respectively against the positioning plate (105).

6. A positioning device for a surveying instrument according to claim 5, characterized in that: The inner wall of each rotating rod (201) is slidably connected to a telescopic foot (205), the bottom end of the telescopic foot (205) extends below the rotating rod (201), and the middle part of the outer wall of each telescopic foot (205) is provided with a supporting groove (206).

7. A positioning device for a surveying instrument according to claim 5, characterized in that: The lower end of the surface of the rotating rod (201) is threadedly connected to a tightening screw (202), one end of the tightening screw (202) extends to the outside of the rotating rod (201) and is fixedly connected to a second knob (203), and the other end of the tightening screw (202) is rotatably connected to a support plate (204), and the support plate (204) is located on a side away from the tightening screw (202) and abuts against the inner side of the support groove (206).

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