Supporting device for coal field geological exploration
By introducing an angle adjustment part and an annular ball surface structure into the support device of coalfield geological exploration equipment, the problem of difficulty in performing low-level fine adjustment of existing equipment is solved, and more efficient measurement head position adjustment and equipment protection are achieved.
Patent Information
- Application Number
- CN202510405020.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2025-05-02
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When adjusting the angle and height of the equipment, the support frame of the existing coalfield geological exploration equipment has a large proportion, making it difficult to make low-level fine adjustments, resulting in inconvenient adjustment of the measuring head and increasing operational difficulty.
A support device for coalfield geological exploration is designed. The rotation angle of the rotating sphere block is controlled through the angle adjustment part, and the annular ball surface on the base can be fine-tuned for the position of the mounting plate and the measuring head, and dust and gravel are prevented from entering through the sealing structure.
It realizes convenient adjustment of the inclination angle of the installation disc, improves the position accuracy of the measuring head, reduces the difficulty of operation, and protects the equipment through sealing, avoiding the influence of dust and gravel.
Smart Images

Figure CN119914800A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of surveying and mapping equipment support, and in particular to a support device for coalfield geological exploration. Background Art
[0002] Coalfield geological exploration refers to the process of scientifically detecting and analyzing coalfields (areas containing coal strata) through systematic geological surveys and technical means to identify key information such as the spatial distribution, reserves, coal quality characteristics, geological structure, and mining conditions of coal seams. It provides a strong basis for coal mining design and planning, and ensures the safe and smooth development of coal mining activities in the later stage. During the detection process, surveying instruments, level meters and other related geological equipment are needed to perform topographic mapping operations, which can not only improve the efficiency of coal mine exploration, but also achieve the protection of coal resources to a large extent.
[0003] In the prior art, in order to keep the equipment stable during use, it is necessary to support the equipment with the help of a corresponding support frame, and coalfield surveying requires multiple measuring instruments, such as levels, theodolites, total stations, gyroscopes, etc.; when in use, it is necessary to constantly replace different measuring heads on the support frame, and adjust the angle, height, horizontality and other parameter values of the support frame, and general exploration equipment is provided with a bracket, and the angle, height, horizontality and other parameter values are adjusted by the bracket. Although the legs of the bracket can be adjusted to a larger height as a whole, the adjustment ratio is large, and it is inconvenient to perform minimal fine-tuning, which makes it difficult to adjust the position of the measuring head, thereby increasing the difficulty of operation.
[0004] Chinese invention patent CN116428477A discloses a foldable geological exploration equipment support frame that prevents skewing, including a mounting platform, a fixed column for support, an exploration platform for placing equipment, and a level ruler installed below the mounting platform, a fixed rod, the fixed rod is telescopically connected to the lower end of the fixed column, an adjustment mechanism, the adjustment mechanism is arranged below the mounting platform, a movable bracket, the movable bracket is hingedly connected to the lower end of the support platform, and a fixed splint, the fixed splint is symmetrically arranged on the left and right sides of the exploration platform. The foldable geological exploration equipment support frame that prevents skewing can very conveniently drive the support frame to be folded and stored, thereby increasing the portability of the support frame. Through the setting of the level ruler, the equipment on the support frame can be prevented from being skewing, which is convenient for fine-tuning the use height and angle of the equipment. Combined with the setting of the fixed splint, the equipment can be prevented from falling and being damaged during use. Chinese invention patent CN116858203A discloses a cadastral surveying and centering device, including a surveying head and a bracket, which are connected by a connector; a plurality of angle adjustment devices are arranged in the inner circumference of the connector, and the angle adjustment device includes an adjusting screw and a lifting slider, the adjusting screw is vertically arranged on one side of the surveying head, and the lifting slider is slidably connected with the adjusting screw; a plurality of support blocks are arranged at the bottom of the surveying head, and the support block is located on the lifting slider. The surveying head is adjusted from different directions by the plurality of angle adjustment devices under the surveying head, the adjusting screw is rotated, and the lifting slider moves up and down, driving the support block to rise or fall, and the surveying head is located on one side of the support block and is raised or lowered, so that the horizontal alignment of the level on it is located in the center, and fine-tuning is performed. After adjustment, the relative amplitude of the movement of the surveying head is small, and it is easy to align the horizontal alignment, reducing the difficulty of operation. However, there is no contact between the support part and the adjustment part, which is easy to be unstable, and the above schemes are not sealed, and the bad on-site environment makes it easy for slag, dust, etc. to enter, affecting the adjustment operation and damaging the adjustment device. Summary of the invention
[0005] The present invention is to overcome the shortcomings of the above-mentioned prior art and provide a support device for coalfield geological exploration. The present invention controls the rotation angle of the rotating spherical block through the angle adjustment part, fine-tunes the position of the mounting plate and the measuring head, and the rotating spherical block is matched on the annular spherical surface on the base, so as to achieve the effect of not only facilitating the measurement of the inclination angle of the mounting plate and providing stable support, but also playing a sealing role.
[0006] The technical solution adopted by the present invention to solve its technical problems is: a supporting device for coalfield geological exploration, including a measuring head and a support leg, a connecting shell is provided between the measuring head and the support leg, the connecting shell is provided with a through hole, a base is provided at the through hole, and an annular spherical surface is provided on the base; a mounting plate for mounting the measuring head is provided on the base, the mounting plate is provided with a rotating spherical block cooperating with the spherical surface, and an angle adjustment part for adjusting the angle of the rotating spherical block is provided below the rotating spherical block.
[0007] Preferably, a protrusion is provided under the rotating spherical block, the protrusion is in a strip shape and is arranged along the surface of the rotating spherical block, and a plurality of strip-shaped protrusions are arranged in parallel; the angle adjustment part includes an adjusting wheel, the surface of the adjusting wheel is provided with an arc surface that cooperates with the rotating spherical block, and the arc surface is provided with a groove that cooperates with the protrusion.
[0008] Preferably, a mounting plate is provided below the adjusting wheel, the adjusting wheel is rotatably connected to the mounting plate via a rotating shaft, and the rotating shaft is driven to rotate by a first driving mechanism.
[0009] Preferably, the first driving mechanism includes a first rotating rod and a second rotating rod, the second rotating rod includes a rod sleeve and a rod core, the rod sleeve and the rod core are slidingly connected via a limiting inner groove; the rod sleeve is universally connected to the first rotating rod, and the rod core is universally connected to the rotating shaft.
[0010] Preferably, the first driving mechanism further comprises a first connecting shaft which is sealingly rotatably connected to the connecting shell, one end of the first connecting shaft is connected to the first rotating rod, and the other end is provided with a first knob.
[0011] Preferably, the adjusting wheel is provided with baffles blocking both ends of the protrusion.
[0012] Preferably, a support is provided below the mounting plate, an arc-shaped slide rail is provided on the support, a slider connected to the mounting plate is provided on the slide rail, and the slider is driven to move by a second driving mechanism.
[0013] Preferably, the second driving mechanism comprises a screw rod under the support, a screw block is provided on the screw rod, a vertical rod is provided on the screw block, a sliding sleeve is sleeved on the vertical rod, and the sliding sleeve is rotatably connected to the slider.
[0014] Preferably, the second driving mechanism further comprises a second connecting shaft which is sealingly rotatably connected to the connecting shell, one end of the second connecting shaft is connected to the screw rod, and the other end is provided with a second knob.
[0015] Preferably, a rotating part is provided between the connecting shell and the supporting leg, the rotating part comprises a slewing bearing and a bottom plate, the bottom plate is provided with a pin hole, and the slewing bearing is provided with a latch pin cooperating with the pin hole.
[0016] Compared with the prior art, the advantages and positive effects of the present invention are: (1) The construction personnel first unfold the legs of the device, stand it on the ground, adjust the legs to make the device stable, fix the measuring head on the mounting plate, and control the rotation angle of the rotating spherical block through the angle adjustment part. The inclination angle of the mounting plate relative to the horizontal plane can be adjusted within a certain range, thereby controlling the position of the measuring head and making fine adjustments to facilitate the measurement operation. The rotating spherical block fits on the annular spherical surface on the base, and the support is stable. It can not only adjust the inclination angle of the mounting plate, but also the spherical surface can play a sealing role to prevent the entry of slag, dust, etc., which will affect the adjustment operation and damage the adjustment device.
[0017] (2) The structure of the adjusting wheel is adapted to the spherical structure of the rotating spherical block and is used to adjust its angle. The grooves on its arc surface engage with the protrusions on the surface of the rotating spherical block, so that the surface of the rotating spherical block rotates accordingly, and the transmission is stable. The adjusting wheel can further support the rotating spherical block and support the rotating spherical block up and down together with the annular spherical surface, making it more stable during the rotation process, thereby ensuring the angle adjustment of the measuring head on the mounting plate.
[0018] (3) The first rotary knob is turned to drive the first shaft to rotate. Driven by the rotation of the first shaft, the first rotating rod and the second rotating rod rotate synchronously, and the driving shaft drives the adjusting wheel to rotate, thereby controlling the forward and backward rotation of the rotating ball block to adjust the posture of the measuring head. The rod sleeve and the rod core of the second rotating rod can slide relative to each other to adjust the length of the second rotating rod. When it is necessary to rotate the rotating ball block left and right to adjust the posture of the measuring head, the length can change with the left and right swing of the rotating ball block, and at the same time transmit torque to the rotating shaft.
[0019] (4) The adjusting wheel is provided with baffles at both ends of the protrusions. On the one hand, it blocks the two ends of the strip-shaped protrusions on the rotating ball block and limits the rotation of the rotating ball block so that it will not rotate to the left or right. On the other hand, it makes the rotating ball block rotate synchronously with the adjusting wheel. When it is necessary to rotate the rotating ball block to the left or right, the rotating ball block can be rotated by controlling the movement of the adjusting wheel.
[0020] (5) The second driving mechanism drives the slider to move on the slide rail. The slide rail is arc-shaped with its center at the rotating spherical block. The slider drives the mounting plate, and the mounting plate drives the rotating spherical block through the adjusting wheel to realize the rotation of the rotating spherical block in the left and right directions, thereby further adjusting the posture of the measuring head.
[0021] (6) By turning the second knob, the screw rod is driven to rotate, and the screw block on the screw rod moves with the vertical rod. The vertical rod is sleeved on the sliding sleeve, which in turn pushes the slider to move. When the slider moves on the arc-shaped slide rail, the sliding sleeve can rotate accordingly to ensure its sliding connection with the vertical rod, so that the sliding sleeve can be pushed forward by the vertical rod while moving on the vertical rod, thereby realizing the movement of the slider on the arc-shaped slide rail, and then controlling the posture of the measuring head on the rotating ball block. The structure is simple and easy to operate.
[0022] (7) By rotating the connecting shell through the slewing bearing, the angle of the measuring head can be rotated, thereby improving the use effect and application scope of the device. After rotating to the required position, the pin is inserted into the pin hole to fix the slewing bearing and the base plate together to achieve positioning, and then the staff can operate the measuring head to perform measurement work. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 A cross-sectional schematic diagram of a connecting shell; Figure 3 for Figure 2 Enlarged view of the middle angle adjustment part; Figure 4 It is a three-dimensional schematic diagram of the mounting plate and the adjusting wheel; Figure 5 is a schematic diagram of a first driving mechanism; Figure 6 is a three-dimensional cross-sectional view of the second rotating rod; Figure 7 This is a cross-sectional view of the rotating part.
[0024] Description of reference numerals: 1- Measuring head; 2-connecting shell, 21-through hole, 22-base, 23-ball surface; 3-mounting plate, 31-rotating spherical block, 32-protrusion; 4-angle adjustment part, 41-adjusting wheel, 411-arc surface, 412-groove, 42-baffle, 43-rotating shaft, 44-mounting plate, 45-slider, 46-slide rail, 47-support; 5-first driving mechanism, 51-first rotating rod, 52-second rotating rod, 53-rod sleeve, 54-rod core, 55-limiting inner groove, 56-first connecting shaft, 57-first knob; 6-second driving mechanism, 61-screw rod, 62-screw block, 63-vertical rod, 64-sliding sleeve, 65-second connecting shaft, 66-second knob; 7-rotating part, 71-slewing bearing, 72-bottom plate, 73-pin, 74-pin hole; 8- Legs. DETAILED DESCRIPTION
[0025] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0026] Example The following is combined with Figure 1-Figure 7 The present invention is further described as follows: a support device for coalfield geological exploration, such as Figure 1 and Figure 2 As shown, it includes a measuring head 1 and a leg 8, a connecting shell 2 is provided between the measuring head 1 and the leg 8, a through hole 21 is provided on the connecting shell 2, a base 22 is provided at the through hole 21, and an annular spherical surface 23 is provided on the base 22; a mounting plate 3 for mounting the measuring head 1 is provided on the base 22, the mounting plate 3 is provided with a rotating spherical block 31 matched with the spherical surface 23, and an angle adjusting portion 4 for adjusting the angle of the rotating spherical block 31 is provided below the rotating spherical block 31.
[0027] The construction personnel first unfold the legs 8 of the device, stand it on the ground, adjust the legs 8 to stabilize the device, fix the measuring head 1 on the mounting plate 3, and control the rotation angle of the rotating spherical block 31 through the angle adjustment part 4. The inclination of the mounting plate 3 relative to the horizontal plane can be adjusted within a certain range, so as to control the position of the measuring head 1 and perform fine adjustment to facilitate the measurement operation. The rotating spherical block 31 is matched with the annular spherical surface 23 on the base 22, and the support is stable. Not only can the inclination of the mounting plate 3 be adjusted, but the spherical surface 23 can also play a sealing role to prevent the entry of slag, dust, etc., which will affect the adjustment operation and damage the adjustment device.
[0028] like Figure 3 and Figure 4 As shown, a protrusion 32 is provided below the rotating spherical block 31, the protrusion 32 is in a strip shape, and is arranged along the surface of the rotating spherical block 31, and a plurality of strip-shaped protrusions 32 are arranged in parallel; the angle adjustment part 4 includes an adjusting wheel 41, and the surface of the adjusting wheel 41 is provided with an arc surface 411 that cooperates with the rotating spherical block 31, and the arc surface 411 is provided with a groove 412 that cooperates with the protrusion 32.
[0029] The structure of the adjusting wheel 41 is adapted to the spherical structure of the rotating spherical block 31 and is used to adjust its angle. The groove 412 on its arc surface 411 engages with the protrusion 32 on the surface of the rotating spherical block 31, so that the surface of the rotating spherical block 31 rotates accordingly, and the transmission is stable. The adjusting wheel 41 can further support the rotating spherical block 31, and together with the annular spherical surface 23, support the rotating spherical block 31 up and down, making it more stable during the rotation process, thereby ensuring the angle adjustment of the measuring head 1 on the mounting plate 3.
[0030] like Figure 3 As shown, a mounting plate 44 is provided below the adjusting wheel 41 , and the adjusting wheel 41 is rotatably connected to the mounting plate 44 via a rotating shaft 43 , and the rotating shaft 43 is driven to rotate by the first driving mechanism 5 .
[0031] like Figure 5 and Figure 6As shown, the first driving mechanism 5 includes a first rotating rod 51 and a second rotating rod 52, the second rotating rod 52 includes a rod sleeve 53 and a rod core 54, the rod sleeve 53 and the rod core 54 are slidingly connected through a limiting inner groove 55; the rod sleeve 53 is universally connected to the first rotating rod 51, and the rod core 54 is universally connected to the rotating shaft 43.
[0032] The first driving mechanism 5 further includes a first connecting shaft 56 which is rotatably connected to the connecting housing 2 in a sealed manner. One end of the first connecting shaft 56 is connected to the first rotating rod 51 , and the other end is provided with a first knob 57 .
[0033] The first connecting shaft 56 is rotated by turning the first knob 57. Driven by the rotation of the first connecting shaft 56, the first rotating rod 51 and the second rotating rod 52 rotate synchronously, and the driving shaft 43 drives the adjusting wheel 41 to rotate, thereby controlling the forward and backward rotation of the rotating ball block 31 to adjust the posture of the measuring head 1. The rod sleeve 53 and the rod core 54 of the second rotating rod 52 can slide relative to each other to adjust the length of the second rotating rod 52. When the rotating ball block 31 needs to be rotated left and right to adjust the posture of the measuring head 1, the length can be changed with the left and right swing of the rotating ball block 31, and the torque can be transmitted to the rotating shaft 43 at the same time.
[0034] like Figure 3 and Figure 4 As shown, a baffle plate 42 is provided on the adjusting wheel 41 to block the two ends of the protrusion 32 .
[0035] On the one hand, it blocks the two ends of the strip-shaped protrusions 32 on the rotating spherical block 31 and limits the rotation of the rotating spherical block 31 so that it will not rotate to the left or right. On the other hand, it makes the rotating spherical block 31 rotate synchronously with the adjusting wheel 41. When the rotating spherical block 31 needs to be rotated to the left or right, the rotation of the rotating spherical block 31 can be achieved by controlling the movement of the adjusting wheel 41.
[0036] like Figure 3 As shown, a support 47 is provided below the mounting plate 44 , an arc-shaped slide rail 46 is provided on the support 47 , a slider 45 connected to the mounting plate 44 is provided on the slide rail 46 , and the slider 45 is driven to move by the second driving mechanism 6 .
[0037] The slider 45 is driven by the second driving mechanism 6 to move on the slide rail 46. The slide rail 46 is arc-shaped with its center at the rotating spherical block 31. The slider 45 drives the mounting plate 44. The mounting plate 44 drives the rotating spherical block 31 through the adjusting wheel 41 to realize the rotation of the rotating spherical block 31 in the left and right directions, thereby further adjusting the posture of the measuring head 1.
[0038] like Figure 3 As shown, the second driving mechanism 6 includes a screw rod 61 located under the support 47 , a screw block 62 is provided on the screw rod 61 , a vertical rod 63 is provided on the vertical rod 63 , a sliding sleeve 64 is sleeved on the vertical rod 63 , and the sliding sleeve 64 is rotatably connected to the slider 45 .
[0039] The second driving mechanism 6 further includes a second connecting shaft 65 which is rotatably connected to the connecting housing 2 in a sealed manner. One end of the second connecting shaft 65 is connected to the screw rod 61 , and the other end is provided with a second knob 66 .
[0040] By turning the second knob 66, the screw rod 61 is driven to rotate, and the screw block 62 on the screw rod 61 moves with the vertical rod 63, and the vertical rod 63 is sleeved on the sliding sleeve 64, thereby pushing the slider 45 to move. When the slider 45 moves on the arc-shaped slide rail 46, the sliding sleeve 64 can rotate accordingly to ensure its sliding connection with the vertical rod 63, so that the sliding sleeve 64 can be pushed forward by the vertical rod 63 while moving on the vertical rod 63, thereby realizing the movement of the slider 45 on the arc-shaped slide rail 46, and then controlling the posture of the measuring head 1 on the rotating spherical block 31. The structure is simple and the operation is convenient.
[0041] like Figure 1 and Figure 7 As shown, a rotating part 7 is provided between the connecting shell 2 and the supporting leg 8. The rotating part 7 includes a slewing bearing 71 and a bottom plate 72. A pin hole 74 is provided on the bottom plate 72. A latch pin 73 matching the pin hole 74 is provided on the slewing bearing 71.
[0042] By rotating the connecting shell 2 through the slewing bearing 71, the angle of the measuring head 1 can be rotated, thereby improving the use effect and application scope of the device. After rotating to the required position, the pin 73 is inserted into the pin hole 74 to fix the slewing bearing 71 and the base plate 72 together to achieve positioning, and then the staff can operate the measuring head 1 to perform measurement work.
[0043] In the description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the purpose of describing the present invention rather than requiring the present invention to be constructed or operated in a specific position, and therefore should not be construed as limiting the present invention. The terms "connected" and "connected" in the present invention should be understood in a broad sense, for example, it can be a connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate component. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.
[0044] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.
Claims
1. A support device for coalfield geological exploration, comprising a measuring head (1) and a support leg (8), wherein a connecting shell (2) is provided between the measuring head (1) and the support leg (8), characterized in that: The connecting shell (2) is provided with a through hole (21), the through hole (21) is provided with a base (22), and the base (22) is provided with an annular spherical surface (23); The base (22) is provided with a mounting plate (3) for mounting the measuring head (1), the mounting plate (3) is provided with a rotating spherical block (31) that cooperates with the spherical surface (23), and an angle adjustment portion (4) for adjusting the angle of the rotating spherical block (31) is provided below the rotating spherical block (31).
2. A supporting device for coalfield geological exploration according to claim 1, characterized in that: A protrusion (32) is provided below the rotating spherical block (31), the protrusion (32) is strip-shaped and is arranged along the surface of the rotating spherical block (31), and a plurality of strip-shaped protrusions (32) are arranged in parallel; The angle adjustment portion (4) comprises an adjustment wheel (41), the surface of the adjustment wheel (41) being provided with an arc surface (411) cooperating with the rotating spherical block (31), and the arc surface (411) being provided with a groove (412) cooperating with the protrusion (32).
3. A supporting device for coalfield geological exploration according to claim 2, characterized in that: A mounting plate (44) is provided below the adjusting wheel (41); the adjusting wheel (41) is rotatably connected to the mounting plate (44) via a rotating shaft (43); and the rotating shaft (43) is driven to rotate via a first driving mechanism (5).
4. A supporting device for coalfield geological exploration according to claim 3, characterized in that: The first driving mechanism (5) comprises a first rotating rod (51) and a second rotating rod (52); the second rotating rod (52) comprises a rod sleeve (53) and a rod core (54); the rod sleeve (53) and the rod core (54) are slidably connected via a limiting inner groove (55); The rod sleeve (53) is universally connected to the first rotating rod (51), and the rod core (54) is universally connected to the rotating shaft (43).
5. A supporting device for coalfield geological exploration according to claim 4, characterized in that: The first driving mechanism (5) further comprises a first connecting shaft (56) which is sealingly rotatably connected to the connecting housing (2); one end of the first connecting shaft (56) is connected to the first rotating rod (51), and the other end is provided with a first knob (57).
6. A supporting device for coalfield geological exploration according to claim 3, characterized in that: The regulating wheel (41) is provided with baffles (42) which are located at both ends of the protrusion (32).
7. A supporting device for coalfield geological exploration according to claim 6, characterized in that: A support (47) is provided below the mounting plate (44); an arc-shaped slide rail (46) is provided on the support (47); a slider (45) connected to the mounting plate (44) is provided on the slide rail (46); the slider (45) is driven to move by a second driving mechanism (6).
8. A supporting device for coalfield geological exploration according to claim 7, characterized in that: The second driving mechanism (6) comprises a screw rod (61) located under the support (47), a screw block (62) being provided on the screw rod (61), a vertical rod (63) being provided on the vertical rod (63), a sliding sleeve (64) being sleeved on the vertical rod (63), and the sliding sleeve (64) being rotatably connected to the slider (45).
9. A supporting device for coalfield geological exploration according to claim 8, characterized in that: The second driving mechanism (6) further comprises a second connecting shaft (65) which is sealingly rotatably connected to the connecting housing (2); one end of the second connecting shaft (65) is connected to the screw rod (61), and the other end is provided with a second knob (66).
10. A supporting device for coalfield geological exploration according to claim 1, characterized in that: A rotating part (7) is provided between the connecting shell (2) and the supporting leg (8), the rotating part (7) comprising a slewing bearing (71) and a bottom plate (72), the bottom plate (72) being provided with a pin hole (74), and the slewing bearing (71) being provided with a latch pin (73) that matches the pin hole (74).
Citation Information
Patent Citations
Electric and manual integrated three-axis turntable
CN111805497A
Geographic information acquisition device for territorial space surveying and mapping
CN115031711A
Swing test platform and swing test system
CN116026545A
Solar light-gathering panel forming equipment for photo-thermal power generation
CN117225986A
Fixed-point surveying and mapping tool for building planning
CN118816051A