A portable photogrammetry system calibrator

Abstract

This utility model discloses a portable photogrammetry system calibrator, relating to the field of photogrammetry system technology. It includes a support column, with an adjusting sleeve rotatably mounted on the upper end of the support column. A support screw is rotatably mounted inside the adjusting sleeve, and the lower end of the support screw is movably inserted into the support column. A hidden structure is provided between the support screw and the support column. When the support screw is fully retracted into the support column, the first and second storage slots overlap, and the telescopic rod is fully retracted into the marking rod. The telescopic rod and marking rod can be inserted into the first and second storage slots. A connecting block fits against the inner walls of the first and second storage slots. A locking rod, under the action of a locking spring and a movable block, is inserted into a locking hole, allowing the telescopic rod and marking rod to be confined within the first and second storage slots. This allows the entire assembly to be easily retracted and folded for convenient carrying.

Description

Technical Field

[0001] This utility model relates to the field of photogrammetry system technology, and in particular to a portable photogrammetry system calibrator. Background Technology

[0002] Common calibrators for photogrammetry systems mainly consist of calibration plates and calibration rods. A typical calibration plate is a square or rectangular plate, commonly made of indium tinplate or carbon fiber, measuring 500mm x 500mm. It has evenly distributed target points, and the distance between each pair of points is calibrated and confirmed by a legal metrology institution. The calibration rod is a long rod, commonly made of indium tinplate or carbon fiber, typically less than 1000mm in size. It has several evenly distributed target points, and the position between each pair of target points is calibrated and confirmed by a national legal metrology institution.

[0003] A search revealed a portable photogrammetry system calibrator with publication number CN211576213U;

[0004] Existing portable photogrammetry system calibrators are supported by a tripod mounted below. However, even when the tripod is retracted, the size is still relatively large, making it inconvenient to carry. Furthermore, existing portable photogrammetry system calibrators are calibrated using two telescopic marker poles. Although the two telescopic marker poles can be removed, they still pose some inconvenience when carrying them. Utility Model Content

[0005] The purpose of this invention is to provide a portable photogrammetry system calibrator that can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A portable photogrammetric system calibrator includes a support column. An adjusting sleeve is rotatably mounted on the upper end of the support column. A support screw is rotatably mounted inside the adjusting sleeve. The lower end of the support screw is movably inserted into the interior of the support column. A hidden structure is provided between the support screw and the support column. A support structure is provided at the lower end of the support column. A connecting gimbal is rotatably mounted on the upper end of the support screw. A connector is rotatably mounted on the upper end of the connecting gimbal. A plug is movably inserted at one end of the connector. Two marker rods are movably sleeved on the surface of the plug rod, and the marker rods are staggered. Telescopic rods are movably inserted at both ends of each marker rod. Calibration blocks are provided on the surfaces of both the telescopic rods and the marker rods.

[0008] As a further optimization of this utility model, the support screw has sliding grooves on both sides, and sliders are fixedly installed on both sides of the upper end of the inner wall of the support column, with one end of the slider movably inserted into the inside of the sliding groove.

[0009] As a further optimization of this utility model, the support structure includes a rotating groove, which is formed on the surface of the support column. An adjustment groove is formed inside the lower end of the support column, and grooves connected to the adjustment groove are formed on both sides of the surface of the support column.

[0010] As a further optimization of this utility model, a movable support rod is rotatably installed on the inner wall of the groove, and a rotating screw is rotatably installed inside the adjusting groove. The upper end of the rotating screw is movably inserted inside the rotating groove and is equipped with a rotating block.

[0011] As a further optimization of this utility model, a movable screw sleeve is rotatably mounted on the surface of the rotating screw, and movable connecting rods are movably mounted on both sides of the movable screw sleeve, with one end of the movable connecting rod being movably connected to one side of the movable support rod.

[0012] As a further optimization of this utility model, both ends of the marker rod are provided with telescopic grooves. One end of the telescopic rod is movable inside the telescopic groove. A retaining ring is fixedly installed at one end inside the telescopic groove. One end of the telescopic rod is provided with a threaded hole. An adjusting screw is rotatably installed inside the threaded hole. One end of the adjusting screw is rotatably connected to the inner wall of the telescopic groove. An adjusting rod is rotatably installed on one side of the telescopic groove. One end of the adjusting rod is kinetically connected to the adjusting screw.

[0013] As a further optimization of this utility model, the hidden structure includes a first storage slot and a second storage slot, which are respectively opened on both sides of the surface of the support column and the support screw. The inner wall of the first storage slot is provided with a card hole on both sides.

[0014] As a further optimization of this utility model, connecting blocks are fixedly installed at both ends of the telescopic rod, and a locking rod is movably inserted into the surface of the connecting block. The locking rod cooperates with the locking hole, and a movable block is provided on the surface of the locking rod. A locking spring connected to the movable block is sleeved on the surface of the locking rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The portable photogrammetric system calibrator described in this utility model allows the user to rotate the rotating screw by rotating the rotating block when the support column is inserted into the ground. The moving screw sleeve moves along the surface of the rotating screw, and the moving screw sleeve moves one end of the movable connecting rod. The movable connecting rod drives the movable support rod to rotate, so that the movable support rod unfolds and the lower end of the movable support rod is in contact with the ground, which facilitates the support of the support column, thus giving the support column a good support effect.

[0017] 2. The portable photogrammetric system calibrator of this utility model, when the support screw is fully retracted into the support column, the first storage slot and the second storage slot overlap, the telescopic rod is fully retracted into the marking rod, and the telescopic rod and the marking rod can be inserted into the first storage slot and the second storage slot. The connecting block fits against the inner wall of the first storage slot and the second storage slot. The locking rod is inserted into the locking hole under the action of the locking spring and the movable block, so that the telescopic rod and the marking rod can be limited inside the first storage slot and the second storage slot, thereby allowing the whole to be well retracted and folded, making it convenient for users to carry. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the main body half-section structure of this utility model;

[0020] Figure 3 For the present utility model Figure 1 Schematic diagram of the half-section structure of the central marker pole;

[0021] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0022] In the diagram: 100, support column; 101, first storage slot; 102, locking hole; 103, rotating slot; 104, adjusting slot; 105, slider; 110, movable support rod; 111, rotating screw; 112, moving screw sleeve; 113, movable connecting rod; 120, adjusting screw sleeve; 200, support screw; 201, second storage slot; 202, sliding groove; 300, connecting gimbal; 310, connector; 311, insertion rod; 400, marking rod; 401, calibration block; 410, telescopic rod; 411, adjusting screw; 412, retaining ring; 413, adjusting rod; 420, connecting block; 421, locking rod; 422, movable block; 423, locking spring. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figures 1 to 3As shown, the present invention provides a portable photogrammetry system calibrator, including a support column 100, an adjusting sleeve 120 rotatably mounted on the upper end of the support column 100, a support screw 200 rotatably mounted inside the adjusting sleeve 120, the lower end of the support screw 200 movably inserted inside the support column 100, a hidden structure provided between the support screw 200 and the support column 100, a connecting gimbal 300 rotatably mounted on the upper end of the support screw 200, a connector 310 rotatably mounted on the upper end of the connecting gimbal 300, a plug rod 311 movably inserted at one end of the connector 310, two marking rods 400 movably sleeved on the surface of the plug rod 311, the marking rods 400 being staggered, telescopic rods 410 movably inserted at both ends of the marking rods 400, and calibration blocks 401 provided on the surfaces of the telescopic rods 410 and the marking rods 400.

[0025] In this embodiment, the support column 100 is fixed to the ground by a support structure. Rotating the adjusting sleeve 120 causes the support screw 200 to move upwards or downwards along the support column 100 under the action of the thread, adjusting the height of the marker rod 400 and the telescopic rod 410. The insertion rod 311 allows the two marker rods 400 to be mounted on the surface of the connector 310, and simultaneously adjusts the lateral tilt angle of the two marker rods 400. The connector 310 and the connecting gimbal 300 allow for adjustment of the vertical tilt angle of the marker rods 400. The telescopic rod 410 and the marker rod 400 facilitate adjustment of their lengths, allowing for adjustments based on usage needs and facilitating various calibrations.

[0026] The support screw 200 has sliding grooves 202 on both sides, and sliders 105 are fixedly installed on both sides of the upper end of the inner wall of the support column 100. One end of the slider 105 is movably inserted into the sliding groove 202. Under the action of the sliding groove 202 and the slider 105, the support screw 200 will not rotate with the adjusting sleeve 120, thus affecting the upper end of the support screw 200.

[0027] like Figure 3 As shown, the present invention provides a portable photogrammetry system calibrator, wherein both ends of the marker rod 400 are provided with telescopic grooves, one end of the telescopic rod 410 is movable inside the telescopic groove, a retaining ring 412 is fixedly installed inside the telescopic groove, one end of the telescopic rod 410 is provided with a threaded hole, an adjusting screw 411 is rotatably installed inside the threaded hole, one end of the adjusting screw 411 is rotatably connected to the inner wall of the telescopic groove, and an adjusting rod 413 is rotatably installed on one side of the telescopic groove, one end of the adjusting rod 413 is throttlely connected to the adjusting screw 411;

[0028] In this embodiment, a rotating adjusting rod 413 is used. The adjusting rod 413 drives the adjusting screw 411 to rotate through two different gears. Under the action of the threaded hole, the telescopic rod 410 moves along the adjusting screw 411, so that the telescopic rod 410 can move inside the telescopic groove, which facilitates the adjustment of the length of the marking rod 400 and the telescopic rod 410, and facilitates calibration.

[0029] like Figure 1 and Figure 2 As shown, the present invention provides a portable photogrammetry system calibrator. A support structure is provided at the lower end of a support column 100. The support structure includes a rotating groove 103, which is formed on the surface of the support column 100. An adjustment groove 104 is formed inside the lower end of the support column 100. Grooves connected to the adjustment groove 104 are formed on both sides of the surface of the support column 100. A movable support rod 110 is rotatably mounted on the inner wall of the groove. A rotating screw 111 is rotatably mounted inside the adjustment groove 104. The upper end of the rotating screw 111 is movably inserted into the rotating groove 103 and has a rotating block installed thereon. A movable sleeve 112 is rotatably mounted on the surface of the rotating screw 111. Movable connecting rods 113 are movably mounted on both sides of the movable sleeve 112. One end of the movable connecting rod 113 is movably connected to one side of the movable support rod 110.

[0030] In this embodiment, when the support column 100 is inserted into the ground, the user drives the rotating screw 111 to rotate by rotating the block. The moving screw sleeve 112 moves along the surface of the rotating screw 111. The moving screw sleeve 112 drives one end of the movable connecting rod 113 to move. The movable connecting rod 113 drives the movable support rod 110 to rotate, so that the movable support rod 110 unfolds and the lower end of the movable support rod 110 is in contact with the ground, which facilitates the support of the support column 100. Thus, the support column 100 has a good support effect.

[0031] like Figures 1 to 4 As shown, the present invention provides a portable photogrammetry system calibrator with a hidden structure including a first storage slot 101 and a second storage slot 201. The first storage slot 101 and the second storage slot 201 are respectively opened on both sides of the surface of the support column 100 and the support screw 200. The inner wall of the first storage slot 101 is provided with a locking hole 102 on both sides. The two ends of the telescopic rod 410 are fixedly installed with connecting blocks 420. The surface of the connecting block 420 is movably inserted with a locking rod 421. The locking rod 421 cooperates with the locking hole 102. The surface of the locking rod 421 is provided with a movable block 422. The surface of the locking rod 421 is sleeved with a locking spring 423 connected to the movable block 422.

[0032] In this embodiment, when the support screw 200 is fully retracted into the support column 100, the first storage slot 101 and the second storage slot 201 overlap, and the telescopic rod 410 is fully retracted into the marking rod 400. The telescopic rod 410 and the marking rod 400 can be inserted into the first storage slot 101 and the second storage slot 201. The connecting block 420 is in contact with the inner wall of the first storage slot 101 and the second storage slot 201. The locking rod 421 is inserted into the locking hole 102 under the action of the locking spring 423 and the movable block 422, so that the telescopic rod 410 and the marking rod 400 can be limited inside the first storage slot 101 and the second storage slot 201, thereby allowing the whole to be well retracted and folded, making it convenient for users to carry.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A portable photogrammetric system calibrator, comprising a support column (100), characterized in that: An adjusting sleeve (120) is rotatably mounted on the upper end of the support column (100). A support screw (200) is rotatably mounted inside the adjusting sleeve (120). The lower end of the support screw (200) is movably inserted inside the support column (100). A hidden structure is provided between the support screw (200) and the support column (100). A support structure is provided at the lower end of the support column (100). A connecting gimbal (3) is rotatably mounted on the upper end of the support screw (200). 00), the upper end of the connecting gimbal (300) is rotatably mounted with a connector (310), one end of the connector (310) is movably inserted with a plug rod (311), the surface of the plug rod (311) is movably fitted with two marker rods (400), the marker rods (400) are staggered, both ends of the marker rods (400) are movably inserted with telescopic rods (410), and the surfaces of the telescopic rods (410) and the marker rods (400) are all provided with calibration blocks (401).

2. The portable photogrammetric system calibrator according to claim 1, characterized in that: The support screw (200) has a sliding groove (202) on both sides, and a slider (105) is fixedly installed on both sides of the upper end of the inner wall of the support column (100). One end of the slider (105) is movably inserted into the inside of the sliding groove (202).

3. The portable photogrammetric system calibrator according to claim 1, characterized in that: The support structure includes a rotating groove (103) which is formed on the surface of the support column (100). An adjustment groove (104) is formed inside the lower end of the support column (100). Grooves connected to the adjustment groove (104) are formed on both sides of the surface of the support column (100).

4. A portable photogrammetric system calibrator according to claim 3, characterized in that: The inner wall of the groove is rotatably mounted with a movable support rod (110), and the inside of the adjusting groove (104) is rotatably mounted with a rotating screw (111). The upper end of the rotating screw (111) is movably inserted into the inside of the rotating groove (103) and is mounted with a rotating block.

5. A portable photogrammetric system calibrator according to claim 4, characterized in that: A movable sleeve (112) is rotatably mounted on the surface of the rotating screw (111). Movable connecting rods (113) are movably mounted on both sides of the movable sleeve (112). One end of the movable connecting rod (113) is movably connected to one side of the movable support rod (110).

6. A portable photogrammetric system calibrator according to claim 1, characterized in that: Both ends of the marker rod (400) are provided with telescopic grooves. One end of the telescopic rod (410) is movable inside the telescopic groove. A retaining ring (412) is fixedly installed at one end inside the telescopic groove. One end of the telescopic rod (410) is provided with a threaded hole. An adjusting screw (411) is rotatably installed inside the threaded hole. One end of the adjusting screw (411) is rotatably connected to the inner wall of the telescopic groove. An adjusting rod (413) is rotatably installed on one side of the telescopic groove. One end of the adjusting rod (413) is connected to the adjusting screw (411) in a transmission manner.

7. A portable photogrammetric system calibrator according to claim 1, characterized in that: The hidden structure includes a first storage slot (101) and a second storage slot (201). The first storage slot (101) and the second storage slot (201) are respectively opened on both sides of the surface of the support column (100) and the support screw (200). The inner wall of the first storage slot (101) is provided with a card hole (102) on both sides.

8. A portable photogrammetric system calibrator according to claim 7, characterized in that: Both ends of the telescopic rod (410) are fixedly installed with connecting blocks (420). A locking rod (421) is movably inserted into the surface of the connecting block (420). The locking rod (421) cooperates with the locking hole (102). A movable block (422) is provided on the surface of the locking rod (421). A locking spring (423) connected to the movable block (422) is sleeved on the surface of the locking rod (421).

Images