Folding bracket for engineering surveying and mapping

Abstract

The utility model relates to the technical field of engineering surveying and mapping, in particular to a folding type support for engineering surveying and mapping, which comprises supporting legs and a mounting disc, the mounting disc is arranged above the supporting legs, the supporting legs are distributed below the mounting disc at equal angles, rotating shafts are fixed above the supporting legs, the rotating shafts and the mounting disc are in rotating connection, and the supporting legs are fixed on the mounting disc. A first bevel gear is fixed to the middle of the rotating shaft, the rotating shaft is controlled to rotate through rotation of the first bevel gear, a second bevel gear is meshed with the inner side of the first bevel gear, a transmission shaft is fixed to the middle of the second bevel gear, a supporting plate penetrates through the interior of the transmission shaft, and the transmission shaft and the supporting plate are rotationally connected. According to the folding support for engineering surveying and mapping, the three sets of supporting legs are arranged to support the mounting disc, the supporting legs are driven by the rotating shafts to rotate so that unfolding and folding of the supporting legs can be controlled, a product can be conveniently carried and stored, the three sets of supporting legs can be synchronously adjusted, and operation is convenient.

Description

Technical Field

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

[0002] In engineering construction, engineering surveying is an important preliminary work. Through surveying, relevant data such as engineering area, construction elevation, angle and elevation difference can be measured. When surveying, the surveying instrument can be placed on the bracket for use. The application number is CN202123448148.6. An auxiliary foldable bracket for engineering geological surveying disclosed on September 16, 2022 includes a bracket, a fixing device is fixedly connected at the top position of the bracket, and folding devices are arranged at both sides of the inside of the fixing device. The fixing device includes a connecting shaft , a No. 1 semicircular plate, a No. 2 semicircular plate, a convex block, and a groove. The No. 1 semicircular plate is fixedly connected to one side of the connecting shaft, the No. 2 semicircular plate is fixedly connected to one side of the connecting shaft away from the No. 1 semicircular plate, and the No. 1 semicircular plate is fixedly connected to one side of the connecting shaft away from the connecting shaft. The convex block is separated from the inside of the groove by rotating the No. 1 semicircular plate and the No. 2 semicircular plate outward, and the engineering geological surveying instrument is placed on the fixing device, and the No. 1 semicircular plate and the No. 2 semicircular plate are rotated inward to embed the convex block into the inside of the groove, thereby achieving the purpose of fixing the engineering geological surveying instrument;

[0003] When the current engineering surveying and mapping bracket is in use, the supporting legs are set individually, and they need to be controlled in sequence when folding or unfolding. At the same time, it is inconvenient to adjust the unfolding angle. The unfolding angle of some of the brackets that can be adjusted synchronously with the help of the guide rod in the middle is also subject to certain restrictions. In addition, due to the complex use environment of the bracket, the instrument needs to be horizontally calibrated when used on uneven ground, which reduces the overall convenience of use. Utility Model Content

[0004] The purpose of the utility model is to provide a foldable bracket for engineering surveying and mapping, so as to solve the problem raised in the above-mentioned background technology that the current engineering surveying and mapping bracket is in use, and the supporting legs are individually arranged, and need to be controlled in sequence when folding or unfolding. At the same time, the adjustment of the unfolding angle is relatively inconvenient. The unfolding angle of the partially synchronously adjustable bracket is also subject to certain restrictions with the help of a guide rod in the middle. In addition, due to the complex use environment of the bracket, the instrument needs to be horizontally calibrated when used on uneven ground, which reduces the overall convenience of use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a foldable bracket for engineering surveying and mapping, comprising a support leg and a mounting plate, the mounting plate being arranged above the support leg, and the support legs being equiangularly distributed below the mounting plate, a rotating shaft being fixed above the support leg, and a rotating connection being formed between the rotating shaft and the mounting plate, and a first bevel gear being fixed to the middle of the rotating shaft, and the rotating shaft is rotated by controlling the rotation of the first bevel gear, a second bevel gear being meshed on the inner side of the first bevel gear, and a transmission shaft being fixed to the middle part of the second bevel gear, and a support plate being passed through the inside of the transmission shaft, a rotating connection being formed between the transmission shaft and the support plate, and the support plate being fixed below the mounting plate, a synchronous control mechanism being connected to the inner end of the transmission shaft, and controlling the rotation of the transmission shaft to rotate the support leg, a vertical pole being fixed above the mounting plate, and a support block being fixed above the vertical pole, and an instrument support being arranged above the support block, and a correction mechanism being arranged below the instrument support to correct the horizontality of the instrument support.

[0006] To further optimize the technical solution, three groups of support legs are provided, and the lower ends of the support legs are made of rubber material.

[0007] To further optimize the technical solution, the synchronous control mechanism includes a control shaft, which is rotatably mounted in the middle of the mounting plate, and a meshing connection is formed between the second bevel gear and the transmission shaft below the control shaft to control the rotation of the transmission shaft.

[0008] To further optimize the technical solution, the upper end of the control shaft is located above the mounting plate, and the upper end of the control shaft is designed as an enlarged structure, and a locking mechanism is provided on the outer side of the control shaft.

[0009] To further optimize the technical solution, the locking mechanism includes an auxiliary plate and a locking rod;

[0010] An auxiliary plate, fixed on the outer side of the control shaft and rotating synchronously with the control shaft;

[0011] The locking rod penetrates through the auxiliary plate and forms a threaded connection between the auxiliary plates, and the lower end of the locking rod contacts the mounting plate.

[0012] To further optimize the technical solution, the correction mechanism includes a movable ball, a counterweight block and a positioning rod;

[0013] The movable ball is arranged below the instrument support, and the movable ball is located inside the support block and forms a rotation connection between the support blocks;

[0014] A counterweight block is fixed below the movable ball;

[0015] The positioning rod is arranged on the outside of the movable ball, and the positioning rod penetrates the supporting block and forms a threaded connection between the supporting blocks.

[0016] To further optimize the technical solution, a mounting shaft is fixed above the movable ball, a rotational connection is formed between the mounting shaft and the instrument holder, and a connecting head is fixed in the middle upper part of the instrument holder for connecting the surveying and mapping instrument.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] (1) The three sets of support legs are arranged to provide support for the mounting plate, and the support legs can be controlled to unfold and fold by driving the support legs to rotate through the rotating shaft, which is convenient for carrying and storing the product. The three sets of support legs can be adjusted synchronously, which is easy to operate;

[0019] (2) The support legs are controlled by rotating the rotation axis, so that the rotation of the support legs is not restricted, and a large angle of expansion adjustment can be performed, so that the overall height of the bracket can also be flexibly adjusted, and the angle of the support legs can also be kept stable by locking the rotation axis;

[0020] (3) The support legs can be unfolded and folded by rotating the control shaft, and the setting of the locking rod on the outside of the control shaft can lock the rotation of the control shaft, so that the subsequent rotation shaft can be limited and kept stable;

[0021] (4) The counterweight block provides downward pulling force for the movable ball, which can be used to calibrate the movable ball, so that the instrument support can remain horizontal, which is convenient for the subsequent use of surveying and mapping instruments. The rotation of the movable ball can be locked in conjunction with the positioning rod, providing a stable support effect for the support bracket;

[0022] (5) The support bracket can be rotated by setting the mounting shaft, and can be connected to the surveying and mapping instrument with the connecting head. The rotation of the surveying and mapping instrument can also be controlled by rotating the support bracket, which is convenient for different surveying and mapping needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the top view of the support leg structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the utility model supporting leg folding structure;

[0026] Figure 4 This is a schematic diagram of the main cross-sectional structure of the installation plate of the utility model;

[0027] Figure 5 This is a schematic diagram of the three-dimensional structure of the support block of the utility model;

[0028] Figure 6 This is a schematic diagram of the main cross-sectional structure of the support block of the utility model.

[0029] In the figure: 1. Support leg; 2. Mounting plate; 3. Vertical pole; 4. Support block; 5. Instrument support; 6. Rotating shaft; 7. First bevel gear; 8. Transmission shaft; 9. Second bevel gear; 10. Support plate; 11. Control shaft; 12. Auxiliary plate; 13. Locking rod; 14. Connector; 15. Movable ball; 16. Counterweight block; 17. Mounting shaft; 18. Positioning rod. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figure 1-Figure 6 , the utility model provides the following technical solutions: a foldable bracket for engineering surveying and mapping, comprising a support leg 1 and a mounting plate 2, the mounting plate 2 being arranged above the support leg 1, and the support legs 1 being distributed at equal angles below the mounting plate 2; Embodiment 1:

[0032] The present embodiment provides a technical solution, which discloses that a rotating shaft 6 is fixed on the top of the support leg 1, and a rotating connection is formed between the rotating shaft 6 and the mounting plate 2, and a first bevel gear 7 is fixed in the middle of the rotating shaft 6, and the rotating shaft 6 is rotated by controlling the rotation of the first bevel gear 7, and a second bevel gear 9 is meshed with the inner side of the first bevel gear 7, and a transmission shaft 8 is fixed in the middle of the second bevel gear 9, and a support plate 10 is passed through the inside of the transmission shaft 8, and a rotating connection is formed between the transmission shaft 8 and the support plate 10, and the support plate 10 is fixed below the mounting plate 2, and a synchronous control mechanism is connected to the inner end of the transmission shaft 8 to control the rotation of the transmission shaft 8 so that the support leg 1 rotates, a vertical pole 3 is fixed above the mounting plate 2, and a support block 4 is fixed above the vertical pole 3, and an instrument support 5 is arranged above the support block 4, and a correction mechanism is arranged below the instrument support 5 to correct the horizontality of the instrument support 5, and the support leg 1 is provided with three groups, and the lower end of the support leg 1 is made of rubber material;

[0033] The support can be folded and unfolded by the rotation control of the support legs 1, and the rotation shafts 6 on the three groups of support legs 1 can maintain synchronous rotation to achieve synchronous control of unfolding and folding, and the opening angle of the support legs 1 can be adjusted to change the support height of the support to adapt to different surveying and mapping needs, and after the support is placed, the instrument support 5 can be horizontally corrected through the correction mechanism to keep it flat and avoid subsequent instrument tilting due to the influence of ground tilt. Embodiment 2:

[0034] On the basis of the first embodiment, a synchronous control mechanism is disclosed, which includes a control shaft 11, which is rotatably mounted on the middle part of the mounting disk 2, and the lower part of the control shaft 11 is meshedly connected with the transmission shaft 8 through the second bevel gear 9 to control the rotation of the transmission shaft 8, the upper end of the control shaft 11 is located above the mounting disk 2, and the upper end of the control shaft 11 is designed in an enlarged structure, and a locking mechanism is arranged on the outer side of the control shaft 11, and the locking mechanism includes an auxiliary plate 12 and a locking rod 13, the auxiliary plate 12 is fixed on the outer side of the control shaft 11 and keeps synchronous rotation with the control shaft 11, the locking rod 13 passes through the auxiliary plate 12 and the auxiliary plate 12 forms a threaded connection, and the lower end of the locking rod 13 is in contact with the mounting disk 2;

[0035] When controlling the support leg 1 to rotate, the locking rod 13 can be rotated first to release the connection between the locking rod 13 and the mounting disk 2, so that the control shaft 11 becomes rotatable, and then the control shaft 11 is rotated to drive the transmission shaft 8 to rotate through the second bevel gear 9. The transmission shaft 8 drives the rotating shaft 6 to rotate through the engagement of the second bevel gear 9 and the first bevel gear 7, so that the rotating shaft 6 drives the support leg 1 to rotate, thereby realizing the expansion and folding control of the support leg 1, and the expansion angle can be adjusted as needed. After the adjustment is completed, the locking rod 13 is rotated again to connect it with the mounting disk 2 to limit the rotation of the control shaft 11. Embodiment three:

[0036] On the basis of the first embodiment, the correction mechanism is disclosed, including a movable ball 15, a counterweight 16 and a positioning rod 18. The movable ball 15 is arranged below the instrument holder 5, and the movable ball 15 is located inside the support block 4 and forms a rotational connection between the support block 4. The counterweight 16 is fixed below the movable ball 15. The positioning rod 18 is arranged on the outside of the movable ball 15, and the positioning rod 18 passes through the support block 4 and forms a threaded connection between the support block 4. A mounting shaft 17 is fixed above the movable ball 15, and a rotational connection is formed between the mounting shaft 17 and the instrument holder 5, and a connector 14 is fixed in the middle and upper part of the instrument holder 5 for connecting a surveying and mapping instrument.

[0037] After the bracket is placed, the counterweight 16 provides a vertical downward pulling force for the movable ball 15, and the movable ball 15 can be corrected so that the instrument holder 5 can remain horizontal, which is convenient for the subsequent use of the instrument. After the correction, the positioning rod 18 can be rotated to connect it with the movable ball 15, and the rotation of the movable ball 15 can be locked. When installing the instrument, the connector 14 can be aligned with the installation hole of the instrument and then the instrument holder 5 can be rotated to install the instrument. The installed instrument can maintain good stability.

[0038] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A foldable bracket for engineering surveying and mapping, comprising a support leg (1) and a mounting plate (2), wherein the mounting plate (2) is arranged above the support leg (1), and the support leg (1) is distributed at equal angles below the mounting plate (2); Features: A rotating shaft (6) is fixed above the support leg (1), and a rotating connection is formed between the rotating shaft (6) and the mounting plate (2), and a first bevel gear (7) is fixed in the middle of the rotating shaft (6), and the rotating shaft (6) is rotated by controlling the rotation of the first bevel gear (7), a second bevel gear (9) is meshed on the inner side of the first bevel gear (7), and a transmission shaft (8) is fixed in the middle of the second bevel gear (9), and a support plate (10) is passed through the interior of the transmission shaft (8), and the transmission shaft (8) and the support plate (10) are connected to each other. The support plate (10) is rotatably connected to the support leg (1), and the support plate (10) is fixed below the mounting plate (2). The inner end of the transmission shaft (8) is connected to a synchronous control mechanism to control the rotation of the transmission shaft (8) so that the support leg (1) rotates. A vertical pole (3) is fixed above the mounting plate (2), and a support block (4) is fixed above the vertical pole (3). An instrument support (5) is arranged above the support block (4), and a correction mechanism is arranged below the instrument support (5) to correct the horizontality of the instrument support (5).

2. The foldable bracket for engineering surveying and mapping according to claim 1, characterized in that: The support legs (1) are provided in three groups, and the lower ends of the support legs (1) are made of rubber material.

3. The foldable bracket for engineering surveying and mapping according to claim 1 is characterized in that: The synchronous control mechanism comprises a control shaft (11), the control shaft (11) being rotatably mounted on the middle portion of the mounting plate (2), and a meshing connection being formed between the second bevel gear (9) and the transmission shaft (8) below the control shaft (11), thereby controlling the rotation of the transmission shaft (8).

4. The foldable bracket for engineering surveying and mapping according to claim 3 is characterized in that: The upper end of the control shaft (11) is located above the mounting plate (2), and the upper end of the control shaft (11) is designed to be an enlarged structure, and a locking mechanism is provided on the outer side of the control shaft (11).

5. The foldable bracket for engineering surveying and mapping according to claim 4 is characterized in that: The locking mechanism comprises an auxiliary plate (12) and a locking rod (13); An auxiliary plate (12) is fixed on the outer side of the control shaft (11) and rotates synchronously with the control shaft (11); The locking rod (13) passes through the auxiliary plate (12) and forms a threaded connection between the auxiliary plate (12), and the lower end of the locking rod (13) is in contact with the mounting plate (2).

6. The foldable bracket for engineering surveying and mapping according to claim 1, characterized in that: The correction mechanism comprises a movable ball (15), a counterweight (16) and a positioning rod (18); A movable ball (15) is arranged below the instrument support (5), and the movable ball (15) is located inside the support block (4) and is rotatably connected with the support block (4); A counterweight (16) is fixed below the movable ball (15); The positioning rod (18) is arranged outside the movable ball (15), and the positioning rod (18) penetrates the support block (4) and forms a threaded connection between the support blocks (4).

7. The foldable bracket for engineering surveying and mapping according to claim 6, characterized in that: A mounting shaft (17) is fixed above the movable ball (15), a rotational connection is formed between the mounting shaft (17) and the instrument holder (5), and a connecting head (14) is fixed in the middle upper part of the instrument holder (5) for connecting a surveying and mapping instrument.

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