Engineering surveying and mapping device with quick disassembly and assembly effect

Abstract

The utility model discloses an engineering surveying and mapping device with a quick dismounting effect, which relates to the technical field of mechanical engineering, and comprises a fixing frame and a surveying and mapping device, the surveying and mapping device is positioned above the fixing frame, the fixing frame comprises a supporting plate, a supporting rod and supporting legs, the supporting rod is connected with the side surface of the supporting plate, and the supporting legs are connected with the supporting plate. The device has the advantages that the combination of the rotating shaft, the connecting rod and the movable bottom plate provides stable support for the device, and the three groups of rollers at the bottom of the movable bottom plate enable the device to be convenient and rapid to move when the device needs to be moved, so that the device is convenient to move, and the device is convenient to use. According to the surveying and mapping device, the threaded end of the connecting rod penetrates through the bottom of the inner cavity of the rotating shaft and is fixed through the fixing nut, the height of the surveying and mapping device can be adjusted according to needs, in addition, the surveying and mapping device can be easily taken down from the fixing frame, working efficiency is greatly improved, and especially when the surveying and mapping device is maintained, a large amount of time and labor cost can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical engineering, and particularly relates to an engineering surveying and mapping device with a quick disassembly and assembly effect. Background Technique

[0002] In modern engineering construction, engineering surveying and mapping plays a crucial role. Accurate surveying and mapping data can provide a reliable basis for engineering planning, design, construction, and quality control. With the continuous development of engineering technology, the requirements for surveying and mapping devices are also getting higher and higher. Traditional engineering surveying and mapping devices often have some deficiencies in the process of use. On the one hand, many surveying and mapping devices have complex structures, and the disassembly and assembly processes are cumbersome and time-consuming. In the case of field operations or frequent changes of measurement locations, the inconvenience of disassembling and assembling such traditional devices will greatly reduce work efficiency. For example, some large-scale surveying and mapping instruments require the use of a variety of tools for disassembly and assembly, which is not only complex to operate but also prone to situations such as loss or damage of parts. At the same time, traditional devices are often large in size and heavy in weight, making them very inconvenient to move, which greatly limits the flexibility of surveying and mapping work. Carrying traditional surveying and mapping devices also consumes a large amount of manpower and time. In addition, with the increasing number and diversification of engineering construction projects, higher requirements are also put forward for the flexibility and adaptability of surveying and mapping devices. Different engineering scenarios may require different types of surveying and mapping devices, and the quick disassembly and assembly function can enable the same set of devices to be quickly adjusted and combined according to actual needs, improving the versatility and practicality of the devices. At the same time, the characteristic of being easy to move can enable surveying and mapping personnel to switch between different work locations more efficiently, greatly improving work efficiency.

[0003] The applicant found through retrieval that the Chinese patent discloses a "land engineering surveying and mapping device" with the publication (announcement) number of "CN212584644U". This patent mainly has a rotating handle movably arranged on a lifting mechanism, and by applying a force to the rotating handle, the lifting mechanism drives the level to move in the vertical direction, enabling the level placed on the sliding sleeve to move upward, adapting to the user's height, preventing damage to the waist of the user after long-term use, protecting the physical health of the user, and enabling the conical spikes installed on the fixing piece to be inserted into the muddy ground, which can reduce the shaking during the installation and positioning of the level and reduce the probability of damage to the level due to shaking. The structure is simple and convenient for staff to use. At the same time, the fixing mechanism can be used on both concrete floors and muddy floors, having a large applicability and good economic benefits. However, this device cannot achieve quick disassembly. Therefore, we propose an engineering surveying and mapping device with a quick disassembly and assembly effect. Content of the Utility Model

[0004] The bottom of the clamping block is connected to the top surface of the slider. The slider translates inside the movable slot through a moving pull rod. The threaded end of the moving pull rod is connected to the driving end of the motor. The motor is located on the top surface of the connecting chassis. The movable slot is located at the bottom of the base. The placing slot is located above the movable slot. A positioning block is arranged inside the placing slot, and the positioning block is connected in a matching manner with the positioning slot.

[0005] As a further solution of the present invention: The rotating shaft is located at the bottom surface of the support plate. The purpose of connecting the present invention is to provide an engineering surveying device with a quick disassembly and assembly effect.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: An engineering surveying device with a quick disassembly and assembly effect, including a fixing frame and a surveying instrument. The surveying instrument is located above the fixing frame. The fixing frame includes a support plate, a support rod, and a support leg. The support rod is connected to the side surface of the support plate. The support leg penetrates through the bottom of the inner cavity of the support rod. Both the support rod and the support leg are provided with three groups. Its characteristics are as follows: A connecting round block is arranged at the bottom side of the surveying instrument. A clamping groove is opened at the center of the bottom surface of the connecting round block. A connecting chassis is fixed on the top surface of the support plate. A base is arranged in the middle of the top surface of the connecting chassis. A placing slot is opened on the top surface of the base. An activity slot is arranged at the bottom of the base corresponding to the placing slot. Two sliders are installed inside the activity slot. Clamping blocks are installed on the top surfaces of the sliders. Moving pull rods are arranged on one side of each slider close to the outside of the base. The other ends of the moving pull rods are all connected to motors. The connecting round block is fixed inside the placing slot and they match each other. A rotating shaft is arranged in the middle of the bottom surface of the support plate. A connecting rod penetrates through the bottom of the inner cavity of the rotating shaft. A moving bottom plate is arranged at the bottom of the connecting rod.

[0007] As a further solution of the present invention: The surveying instrument is connected and fixed above the fixing frame through the connecting chassis and the base. The connecting round block is located at the bottom of the surveying instrument. The clamping groove is arranged in the middle of the bottom surface of the connecting round block. A positioning groove is opened on the side surface of the connecting round block. The clamping groove is in contact connection with the clamping block. The threaded end of the rod penetrates through the bottom of the inner cavity of the rotating shaft and is provided with a fixing nut. The moving bottom plate is connected to the bottom of the connecting rod and three groups of rollers are arranged at its bottom.

[0008] As a further solution of the present invention: A dust-proof cover is installed on the upper side of the surveying instrument. A handle is arranged on the top surface of the dust-proof cover and a hole is opened, and the hole matches the handle of the surveying instrument.

[0009] As a further solution of the present invention: A plurality of threaded holes are opened on one side of the support leg away from the connecting rod. A positioning bolt is arranged on the support rod at the side of the support leg where the threaded holes are located. The positioning bolt is connected to the threaded hole.

[0010] As a further solution of the present utility model: a handle is provided on the side surface of the rotating shaft, and a hook is provided on the bottom surface of the handle.

[0011] As a further solution of the present utility model: the connecting chassis is fixed to the top surface of the support plate by four groups of bolts.

[0012] Adopting the above technical solution, compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, the connecting round block is located at the bottom of the surveying instrument, and the base is arranged on the top surface of the support plate. During installation, the connecting round block is placed into the placement groove on the top surface of the base. The motor drives the moving pull rod to drive the slider to move in the moving groove, so that the clamping block contacts and connects with the clamping groove on the bottom surface of the connecting round block. At the same time, the positioning block on the inner side of the placement groove matches and connects with the positioning groove on the side surface of the connecting round block. The double fixation ensures the stability of the surveying instrument on the fixing frame. When disassembling, only need to start the motor to drive the moving pull rod to drive the slider to move in the reverse direction, and the clamping block disengages from the clamping groove, then the surveying instrument can be easily removed from the fixing frame. This design of quick disassembly and assembly greatly improves the work efficiency. Especially when it is necessary to frequently change the surveying location or perform maintenance on the surveying instrument, it can save a large amount of time and labor costs. For emergency engineering surveying tasks, it can also achieve rapid deployment to meet the actual needs.

[0014] 2. The combination of the rotating shaft, the connecting rod and the moving bottom plate in the present utility model provides stable support for the whole device. And the three groups of rollers at the bottom of the moving bottom plate make it more convenient and fast when the device needs to be moved. The threaded end of the connecting rod penetrates through the bottom of the inner cavity of the rotating shaft and is fixed by a fixing nut, and the height of the surveying instrument can be adjusted according to actual needs to adapt to different working scenarios. On the other hand, the design of multiple threaded holes on the support legs and the positioning bolts on the support rods enables the length of the support legs to be flexibly adjusted. Whether on a flat ground or a rugged terrain, the stability of the device can be ensured. In addition, the setting of the dust cover effectively protects the surveying instrument. The dust cover can not only prevent dust and sundries from entering the surveying instrument and extend its service life, but also the handle and holes on the top surface facilitate the carrying of the surveying instrument. The hook on the bottom surface of the handle on the side surface of the rotating shaft also provides convenience for hanging some tools, increasing the practicality of the device.

[0015] Other advantages, objectives and features of the present utility model will be elaborated to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic three-dimensional diagram of the whole device in the embodiment of the present utility model;

[0017] Figure 2 This is a partial three-dimensional schematic diagram of the device in the embodiment of the present utility model;

[0018] Figure 3 This is a partial left view schematic diagram of the device in the embodiment of the present utility model;

[0019] Figure 4 This is a partial front view schematic diagram of the device in the embodiment of the present utility model;

[0020] Figure 5 This is a partial exploded schematic diagram of the device in the embodiment of the present utility model;

[0021] Figure 6 This is a three-dimensional schematic diagram of the fixing frame of the device in the embodiment of the present utility model;

[0022] Figure 7 This is a partial top view schematic diagram of the device in the embodiment of the present utility model;

[0023] Figure 8 This is a bottom view schematic diagram of the surveying instrument in the embodiment of the present utility model.

[0024] In the figure: 1. Fixing frame; 101. Support plate; 102. Support rod; 103. Support leg; 2. Surveying instrument; 3. Connecting round block; 301. Card slot; 4. Connecting chassis; 5. Base; 501. Placing groove; 502. Moving groove; 503. Slide block; 504. Clamping block; 505. Moving pull rod; 506. Motor; 6. Rotating shaft; 7. Connecting rod; 8. Moving bottom plate; 9. Fixing nut; 10. Dust cover; 11. Handle. Specific embodiments

[0025] The following further describes the specific embodiments of the present utility model with reference to the accompanying drawings. It should be noted here that the description of these embodiments is used to help understand the present utility model, but does not constitute a limitation to the present utility model.

[0026] In addition, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0027] Embodiment 1

[0028] Please refer to the attached Figure 1 - attached Figure 8, The surveying instrument 2 is precisely located above the fixing frame 1, presenting a stable and orderly layout. The fixing frame 1 is mainly composed of a support plate 101, a support rod 102, and a support leg 103. Among them, the support rod 102 is closely connected to the side of the support plate 101, providing strong support for the entire structure. The support leg 103 penetrates vertically through the bottom of the inner cavity of the support rod 102. The combination of the three forms a stable triangular structure, greatly enhancing the stability of the fixing frame 1. It is worth mentioning that both the support rod 102 and the support leg 103 are carefully set in three groups. This symmetrical design not only gives a harmonious feeling in appearance but also ensures that the fixing frame 1 can evenly bear the pressure from all directions during actual use.

[0029] Furthermore, at the bottom side of the surveying instrument 2, there is a connecting round block 3. A clamping groove 301 is carefully opened at the center of the bottom surface of this connecting round block 3, and its design purpose is to precisely connect with the structure below. On the top surface of the support plate 101, a connecting chassis 4 is firmly fixed. In the middle of the top surface of the connecting chassis 4, there is a base 5. A placement groove 501 is opened on the top surface of the base 5. The shape of this placement groove 501 perfectly matches that of the connecting round block 3, enabling the connecting round block 3 to be stably fixed inside the placement groove 501. At the position of the base 5 at the bottom of the placement groove 501, a movable groove 502 is cleverly set. Two groups of sliders 503 are installed inside the movable groove 502. These sliders 503 can smoothly slide inside the movable groove 502, ensuring the flexibility of the entire structure. Clamping blocks 504 are installed on the top surfaces of the sliders 503. When the connecting round block 3 is placed in the placement groove 501, the clamping blocks 504 can cooperate with the clamping groove 301 to further enhance the connection stability. On the side of each slider 503 close to the outer side of the base 5, there is a moving pull rod 505. The other ends of these moving pull rods 505 are all connected to a motor 506. The function of the motor 506 is to control the movement of the slider 503 through the moving pull rod 505, thereby realizing the precise docking or separation of the clamping block 504 and the clamping groove 301.

[0030] In summary, at the middle of the bottom surface of the support plate 101, there is a rotating shaft 6. This rotating shaft 6 provides the rotation function for the entire structure, enabling the surveying instrument 2 to measure at different angles. A connecting rod 7 penetrates through the bottom of the inner cavity of the rotating shaft 6. A moving bottom plate 8 is provided at the bottom of the connecting rod 7. The design of the moving bottom plate 8 enables the entire device to move to different positions, bringing great convenience to the surveying work.

[0031] Working principle:

[0032] (1) Connection and fixing principle

[0033] The connecting circular block 3 on the bottom side of the surveying instrument 2 is matched with the base 5 on the fixing frame 1 to achieve connection. The clamping groove 301 at the center of the bottom surface of the connecting circular block 3 is used for precise docking with the structure on the base 5. The base 5 is arranged in the middle of the connecting chassis 4 on the top surface of the support plate 101. The placing groove 501 on the top surface of the base 5 matches the shape of the connecting circular block 3 and can accommodate the connecting circular block 3. Two groups of sliders 503 are installed in the movable groove 502 at the bottom of the placing groove 501. After the connecting circular block 3 is placed in the placing groove 501, the clamping blocks 504 on the top surfaces of the sliders 503 can cooperate with the clamping groove 301. The motor 506 controls the movement of the sliders 503 through the moving pull rod 505 to achieve the precise docking or separation of the clamping block 504 and the clamping groove 301, thereby completing the firm connection between the surveying instrument 2 and the fixing frame 1;

[0034] (2) Angle adjustment principle

[0035] A rotating shaft 6 is arranged in the middle of the bottom surface of the support plate 101. The rotating shaft 6 provides the rotation function for the whole structure. Through the rotation of the rotating shaft 6, the surveying instrument 2 can measure at different angles, meeting various different measurement requirements and providing greater flexibility and adaptability for the surveying work;

[0036] (3) Moving and portable principle

[0037] A connecting rod 7 penetrates through the bottom of the inner cavity of the rotating shaft 6. The moving bottom plate 8 is arranged at the bottom of the connecting rod 7. The design of the moving bottom plate 8 enables the whole device to move to different positions, facilitating the surveying work at different measurement sites, bringing great convenience to the surveying work, and improving the work efficiency and the practicality of the device.

[0038] Embodiment 2

[0039] Please refer to the appendix Figure 1 - appendix Figure 5 Appendix 7 - appendix Figure 8, the surveying instrument 2 is connected to the base 5 by connecting the chassis 4, thus being fixed above the fixing frame 1. At the bottom of the surveying instrument 2, there is a connecting circular block 3 that plays a key connecting role. In the middle of the bottom surface of this connecting circular block 3, a card slot 301 is carefully set. Its design purpose is clear, aiming to make close and accurate contact connection with the lower structure. At the same time, a positioning slot is also opened on the side of the connecting circular block 3, further enhancing the accuracy and stability of the connection. The card slot 301 is in contact connection with the card block 504, and their cooperation is seamless. The bottom of the card block 504 is firmly connected to the top surface of the slider 503. The slider 503 can perform translational movement inside the movable slot 502, providing a strong guarantee for the flexibility of the entire connection structure. The translational movement of the slider 503 is achieved by moving the pull rod 505. One end of the moving pull rod 505 is connected to the slider 503, and its threaded end is connected to the driving end of the motor 506. The motor 506 precisely controls the movement of the moving pull rod 505, thereby driving the slider 503 to move smoothly in the movable slot 502. The motor 506 is located on the top surface of the connecting chassis 4, providing strong power support for the entire connection structure. The movable slot 502 is cleverly set at the bottom of the base 5, providing space for the movement of the slider 503. Above the movable slot 502 is the placement slot 501. A positioning block is provided inside the placement slot 501. This positioning block is matched and connected with the positioning slot on the side of the connecting circular block 3. This design makes the connection more precise and reliable, ensuring the stability and accuracy of the surveying instrument 2 above the fixing frame 1.

[0040] Working principle: When it is necessary to fix the surveying instrument 2 on the fixing frame 1, the connecting circular block 3 at the bottom of the surveying instrument 2 is placed into the placement slot 501 above the base 5. At this time, the positioning slot on the side of the connecting circular block 3 and the positioning block inside the placement slot 501 match each other, playing a role of preliminary positioning. Then, the motor 506 is started. The driving end of the motor 506 drives the moving pull rod 505 to move. Since the threaded end of the moving pull rod 505 is connected to the motor 506, the moving pull rod 505 will generate translational movement. The moving pull rod 505 then pulls the slider 503 connected to it to perform translational movement inside the movable slot 502. The card block 504 on the top surface of the slider 503 moves together with the slider 503. When the card block 504 moves to contact and snap into the card slot 301 in the middle of the bottom surface of the connecting circular block 3, a firm connection between the surveying instrument 2 and the fixing frame 1 is achieved. When it is necessary to disassemble the surveying instrument 2, the motor 506 rotates in reverse, pulling the slider 503 to translate in the reverse direction through the moving pull rod 505, so that the card block 504 withdraws from the card slot 301, and the surveying instrument 2 can be removed from the fixing frame 1.

[0041] Embodiment Three

[0042] Please refer to the appendix Figure 1 - Appendix Figure 6, the rotating shaft 6 is precisely located at the bottom surface of the support plate 101, adding a crucial rotating function to the entire device. The rotating shaft 6 plays a vital role in the structure, providing strong support for the connection and movement between different parts of the device. The threaded end of the connecting rod 7 penetrates through the bottom cavity of the rotating shaft 6 in a tight and precise manner. This design not only ensures a firm connection between the connecting rod 7 and the rotating shaft 6 but also guarantees the stability of the device. At the same time, a fixing nut 9 is provided at a specific position on the connecting rod 7. This fixing nut 9 plays a key fixing role. It can effectively prevent the connecting rod 7 from loosening or accidentally moving during use, ensuring the overall stability and reliability of the device. The moving bottom plate 8 is tightly connected to the bottom of the connecting rod 7, becoming the support and moving foundation of the entire device. The moving bottom plate 8 is exquisitely designed, providing convenience for the movement of the device. Three groups of rollers are provided at the bottom of the moving bottom plate 8. The setting of these three groups of rollers is carefully considered. They not only give a sense of symmetry and stability in appearance but also provide smoothness and smoothness for the movement of the device in actual use. These three groups of rollers can roll flexibly under various ground conditions, enabling the entire device to be easily moved to different positions, bringing great convenience to the surveying and mapping work.

[0043] Working principle: The rotating shaft 6 is located at the bottom surface of the support plate 101, providing a rotating function for the entire structure. When the angle of the surveying instrument 2 needs to be adjusted, the rotation of the rotating shaft 6 drives the upper support plate 101 and other components fixed on the support plate 101 to rotate together, thereby meeting the measurement requirements at different angles of the surveying instrument 2. The threaded end of the connecting rod 7 penetrates through the bottom cavity of the rotating shaft 6 and is fixed by the fixing nut 9. Such a design makes the connection between the connecting rod 7 and the rotating shaft 6 both firm and adjustable as needed. The fixing nut 9 can prevent the connecting rod 7 from loosening or falling off during use, ensuring the stability of the entire device. The moving bottom plate 8 is connected to the bottom of the connecting rod 7. When the entire surveying device needs to be moved, the three groups of rollers at the bottom of the moving bottom plate 8 come into play. These three groups of rollers can roll smoothly on various grounds, enabling the device to be easily pushed to different measurement positions. The setting of the rollers greatly improves the mobility and flexibility of the device, providing convenience for the efficient progress of the surveying and mapping work.

[0044] Embodiment 4

[0045] Please refer to the appendix Figure 1 - Appendix Figure 8A dust cover 10 is installed on the upper side of the surveyor 2. The handle arranged on the top surface of the dust cover 10 is easy to move, and the hole opened on it matches the handle of the surveyor 2, which can effectively prevent dust and impurities from damaging it when the surveyor is not in use. A plurality of groups of threaded holes are opened on the side of the support leg 103 away from the connecting rod 7, and a positioning bolt is arranged on the side of the support rod 102 where the threaded hole is arranged on the support leg 103. The positioning bolt and the threaded hole are connected to each other, and the height of the support leg 103 can be conveniently adjusted to adapt to different usage scenarios. A handle 11 is arranged on the side of the rotating shaft 6 to provide convenient operation for the user to rotate the rotating shaft. The hook on the bottom surface of the handle 11 can be used to hang small tools or items. The connecting chassis 4 is firmly fixed to the top surface of the supporting plate 101 by four groups of bolts, which ensures the reliability of the connection, and also makes installation and disassembly more convenient and quick, which provides convenience for the maintenance and maintenance of the device.

[0046] Workflow: First, install the surveyor 2, align the connecting round block 3 at the bottom of the surveyor 2 with the placement groove 501 on the top surface of the base 5 on the fixing frame 1, and after the positioning groove on the side of the connecting round block 3 is initially matched with the positioning block inside the placement groove 501, start the motor 506, and the driving end of the motor 506 drives the moving rod 505 to move, so that the slider 503 moves in the movable groove 502, and the block 504 on the top surface of the slider 503 is inserted into the groove 301 in the middle of the bottom surface of the connecting round block 3, completing the firm connection between the surveyor 2 and the fixing frame 1. During use, the handle 11 on the side of the rotating shaft 6 can be used to rotate the rotating shaft 6 to adjust the support plate 101 and the upper The angle of the surveyor 2 can also be adjusted by using the three sets of roller moving devices at the bottom of the mobile base plate 8. At the same time, the threaded holes on one side of the support leg 103 cooperate with the positioning bolts on the support rod 102 to adjust the height of the support leg 103 to adapt to different environments. When not in use, the dust cover 10 is covered on the upper side of the surveyor 2 to protect it from dust. The handle on the top surface is convenient for movement and the hole matches the handle of the surveyor 2. When the surveyor 2 needs to be disassembled, the motor 506 is started and reversed to make the block 504 withdraw from the slot 301. The connecting chassis 4 is fixed to the top surface of the support plate 101 by four sets of bolts to ensure a stable connection and facilitate installation and disassembly and maintenance. At this point, the entire workflow is completed.

[0047] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0048] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present utility model.

[0049] It should be noted that the device structure and drawings of the present utility model mainly describe the principle of the present utility model. In terms of the technical principle, the settings of the power mechanism, power supply system, control system, etc. of the device are not fully described. On the premise that those skilled in the art understand the principle of the above-mentioned utility model, the specific details of its power mechanism, power supply system, and control system can be clearly known. The control mode of the application document is to automatically control through a controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art.

[0050] The standard parts used therein can all be purchased from the market, and can also be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the components known to those skilled in the art, their structures and principles can all be known by those skilled in the art through technical manuals or by conventional experimental methods.

[0051] The above has described in detail the embodiments of the present utility model in conjunction with the drawings, but the present utility model is not limited to the described embodiments.

[0052] For those skilled in the art, without departing from the principle and spirit of the present utility model, various changes, modifications, substitutions, and variations made to these embodiments still fall within the protection scope of the present utility model.

Claims

1. An engineering surveying and mapping device with a quick disassembly and assembly effect, including a fixing frame (1) and a surveying instrument (2). The surveying instrument (2) is located above the fixing frame (1). The fixing frame (1) includes a support plate (101), a support rod (102), and a support leg (103). The support rod (102) is connected to the side surface of the support plate (101). The support leg (103) penetrates through the bottom of the inner cavity of the support rod (102). Both the support rod (102) and the support leg (103) are provided in three groups, and it is characterized in that: A connecting circular block (3) is provided on the bottom side of the surveying instrument (2). A clamping groove (301) is opened at the center of the bottom surface of the connecting circular block (3). A connecting chassis (4) is fixed on the top surface of the support plate (101). A base (5) is provided in the middle of the top surface of the connecting chassis (4). A placement groove (501) is opened on the top surface of the base (5). An activity groove (502) is provided at the bottom of the placement groove (501) of the base (5). Two groups of sliders (503) are installed inside the activity groove (502). Clamping blocks (504) are installed on the top surfaces of the sliders (503). Moving pull rods (505) are arranged on the sides of the sliders (503) close to the outer side of the base (5). The other ends of the moving pull rods (505) are all connected to motors (506). The connecting circular block (3) is fixed inside the placement groove (501), and the two are matched. A rotating shaft (6) is provided in the middle of the bottom surface of the support plate (101). A connecting rod (7) penetrates through the bottom of the inner cavity of the rotating shaft (6). A moving bottom plate (8) is provided at the bottom of the connecting rod (7).

2. The engineering surveying device with a fast disassembly and assembly effect according to claim 1, wherein: The surveying instrument (2) is connected and fixed above the fixing frame (1) through the connecting chassis (4) and the base (5). The connecting circular block (3) is located at the bottom of the surveying instrument (2). The clamping groove (301) is arranged in the middle of the bottom surface of the connecting circular block (3). A positioning groove is opened on the side surface of the connecting circular block (3). The clamping groove (301) is in contact connection with the clamping block (504). The bottom of the clamping block (504) is connected to the top surface of the slider (503). The slider (503) translates inside the activity groove (502) through the moving pull rod (505). The threaded end of the moving pull rod (505) is connected to the driving end of the motor (506). The motor (506) is located on the top surface of the connecting chassis (4). The activity groove (502) is located at the bottom of the base (5). The placement groove (501) is located above the activity groove (502). A positioning block is arranged inside the placement groove (501), and the positioning block is in matching connection with the positioning groove.

3. The engineering surveying device with a quick disassembly and assembly effect according to claim 1 is characterized in that: The rotating shaft (6) is located on the bottom surface of the support plate (101). The threaded end of the connecting rod (7) penetrates through the bottom of the inner cavity of the rotating shaft (6) and is provided with a fixing nut (9). The moving bottom plate (8) is connected to the bottom of the connecting rod (7) and three groups of rollers are provided at its bottom.

4. A project surveying and mapping device with a quick disassembly and assembly effect according to claim 1, characterized in that: A dust-proof cover (10) is installed on the upper side of the surveying instrument (2). A carrying handle is provided on the top surface of the dust-proof cover (10), and a hole is opened, and the hole is matched with the lifting handle of the surveying instrument (2).

5. The engineering surveying device with a quick disassembly and assembly effect according to claim 1, characterized in that: A plurality of threaded holes are opened on the side of the support leg (103) away from the connecting rod (7). A positioning bolt is arranged on the side of the support rod (102) where the support leg (103) is provided with threaded holes, and the positioning bolt is connected to the threaded hole.

6. The engineering surveying device with a quick disassembly and assembly effect according to claim 1, characterized in that: A handle (11) is provided on the side surface of the rotating shaft (6), and a hook is provided on the bottom surface of the handle (11).

7. An engineering surveying device with a quick disassembly and assembly effect according to claim 1, characterized in that: The connecting chassis (4) is fixed on the top surface of the support plate (101) through four bolts.

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