A multifunctional civil engineering investigation safety monitor

Abstract

This invention relates to the field of civil engineering surveying technology and discloses a multifunctional civil engineering surveying safety monitoring device, including an equipment frame and a sampling component. Both the outer and inner sampling cylinders are modular structures. A limiting sleeve is also movably installed at the connection between the outer and protective sleeves. By dividing the sampling component into an inner and outer sampling cylinder, when the user samples soil using the sampling component, the soil placed inside the inner sampling cylinder will expand to a certain extent due to the opening of the outer sampling cylinder, thus quickly completing the unloading effect. This method not only achieves soil sampling of a specified area but is also faster and more convenient than existing sampling equipment.

Description

Technical Field

[0001] This invention relates to the field of civil engineering surveying technology, specifically to a multifunctional civil engineering surveying safety monitoring device. Background Technology

[0002] Civil engineering survey refers to the activities of investigating, analyzing, and evaluating the geological and geographical environmental characteristics and geotechnical engineering conditions of the construction site according to the requirements of the construction project, proposing reasonable foundation suggestions, and preparing construction project survey documents. Before mining or engineering construction, on-site investigations are conducted on topography, geological structure, underground resource reserves, etc. Before a specific civil engineering survey, it is usually necessary to conduct a certain degree of soil sampling work on the soil to be surveyed using soil sampling equipment.

[0003] Existing soil sampling equipment typically uses pneumatic devices to connect the sampling tube to the soil. The pneumatic device extends and retracts to collect soil samples from a specific area. While this method does not affect the overall soil sampling process, soil sampling usually requires stratified sampling. Therefore, the sampling tube typically needs to be excavated into relatively deep soil layers. This makes it difficult to perform subsequent collection and processing of the collected soil after sampling.

[0004] Therefore, to address the shortcomings of existing technologies, we propose a multifunctional safety monitoring device for civil engineering surveys. Summary of the Invention

[0005] This invention provides a multifunctional safety monitoring device for civil engineering surveys, which has beneficial effects and solves the problems mentioned in the background art.

[0006] The present invention provides the following technical solution: a multifunctional civil engineering survey safety monitoring device, including an equipment frame and a sampling component. The equipment frame is composed of several support frames and a support top plate. The several support frames are respectively fixedly installed at the four corners of the support top plate, and a connecting groove is opened on the top surface of the support top plate. The sampling component is movably installed inside the connecting groove.

[0007] The sampling assembly consists of a connecting sleeve, a protective sleeve, an outer sampling cylinder, and an inner sampling cylinder. The outer sampling cylinder is movably disposed at the bottom of the protective sleeve, while the inner sampling cylinder is movably disposed inside a first receiving cavity opened inside the protective sleeve.

[0008] Both the outer sampling cylinder and the inner sampling cylinder are a combined structure. The outer sampling cylinder is composed of a first sampling left plate and a first sampling right plate, and the inner sampling cylinder is composed of a second sampling left plate and a second sampling right plate. A limiting sleeve is also movably provided at the connection between the outer sampling cylinder and the protective sleeve.

[0009] As an optional solution for a multifunctional civil engineering survey safety monitoring device according to the present invention, the connecting sleeve is disposed inside the connecting through groove, and a pneumatic rod is disposed at the top of the connecting sleeve, the pneumatic rod passing through the connecting sleeve and forming a fixed connection with the top surface of the sampling inner cylinder disposed inside the protective sleeve, the protective sleeve being disposed below the connecting sleeve, and a connecting plate being disposed above the connecting through groove, the connecting plate being fixedly disposed on the top surface of the supporting top plate by two connecting rods.

[0010] As an optional solution of the multifunctional civil engineering survey safety monitoring device described in this invention, the first sampling left plate, the first sampling right plate, the second sampling left plate, and the second sampling right plate are all symmetrically arranged, and a torque spring is provided at the connection between the first sampling left plate and the first sampling right plate and the protective sleeve. Furthermore, a tunneling sleeve is fixedly provided on the lower surface of the first sampling left plate and the first sampling right plate, and the bottom of the tunneling sleeve is set as an inclined structure.

[0011] As an alternative solution to the multifunctional civil engineering survey safety monitoring device of the present invention, the inner surface of the first sampling left plate and the outer surface of the second sampling left plate, as well as the inner surface of the first sampling right plate and the outer surface of the second sampling right plate, are respectively provided with a first connecting groove and a second connecting groove. A plurality of first connecting springs are respectively provided between the first connecting groove and the second connecting groove. One end of each first connecting spring is fixedly connected to the first connecting groove, and the other end of the first connecting spring is fixedly connected to the second connecting groove.

[0012] As an alternative solution for a multifunctional civil engineering survey safety monitoring device according to the present invention, the outer surfaces of the second sampling left plate and the second sampling right plate are respectively provided with third connecting grooves, and the first receiving cavity is provided with two fourth connecting grooves at the positions corresponding to the two third connecting grooves.

[0013] As an alternative solution for a multifunctional civil engineering survey safety monitoring device according to the present invention, a plurality of second connecting springs are also respectively provided between the fourth connecting groove and the third connecting groove. One end of each second connecting spring is fixedly connected to the fourth connecting groove, and the other end of the second connecting spring is fixedly connected to the third connecting groove.

[0014] As an optional solution for a multifunctional civil engineering survey safety monitoring device according to the present invention, wherein: a third connecting spring is sleeved on the surface of the pneumatic rod fixedly connected to the top of the sampling inner cylinder, and the two ends of the third connecting spring are fixedly connected to the sampling inner cylinder and the first receiving cavity respectively; at the same time, two air pipes are respectively provided on the top surface of the first receiving cavity above the sampling inner cylinder, and the two air pipes are respectively connected to the second receiving cavities opened on both sides of the protective sleeve.

[0015] As an optional solution for a multifunctional civil engineering survey safety monitoring device according to the present invention, the two second receiving cavities are symmetrically arranged, and each second receiving cavity has a movable sliding groove on both sides. A piston block is slidably arranged inside the movable sliding groove. The bottom surface of the piston block is fixedly connected to the upper end of the piston rod, and the lower end of the piston rod is fixedly connected to the top surface of the limiting sleeve. In addition, the limiting sleeve is movably arranged inside the third receiving cavity, which is opened on the bottom surface of the protective sleeve.

[0016] As an alternative solution for a multifunctional civil engineering survey safety monitoring device according to the present invention, a number of the support frames are fixedly connected to the bottom surfaces of the support frames, and a ring of movable racks is provided on the outer surface of the fixed plates, and the bottom surface of the fixed plates is fixedly connected to the top surface of the movable frames.

[0017] As an alternative solution to the multifunctional civil engineering survey safety monitoring device described in this invention, the top surface of the mobile frame is further provided with an adjusting rod, the bottom of the adjusting rod is provided with a moving gear, the moving gear meshes with the moving rack, and two moving wheels are movably provided on the mobile frame.

[0018] The present invention has the following beneficial effects:

[0019] 1. This multifunctional civil engineering survey safety monitoring device divides the sampling component into an inner sampling cylinder and an outer sampling cylinder. This allows the user to take soil samples using the sampling component. Since both the outer and inner sampling cylinders are modular structures, the soil placed inside the inner sampling cylinder will expand to a certain extent when the outer sampling cylinder is opened, thus quickly completing the unloading effect. This method not only achieves the soil sampling effect in the specified area, but is also faster and more convenient than existing sampling equipment.

[0020] 2. This multifunctional civil engineering survey safety monitoring device has a first receiving cavity and two second receiving cavities inside the protective sleeve. The first receiving cavity and the two second receiving cavities are connected by an air pipe. This allows the gas in the first receiving cavity to reciprocate within the first receiving cavity and the two second receiving cavities as the protective sleeve descends and rises. This can change the air pressure inside the second receiving cavity to a certain extent. Due to the change in air pressure, the limiting sleeve, which is fixedly connected to the piston rod and piston block, will gradually move upward or downward within the third receiving cavity as the air pressure decreases or increases. Through these two effects, the limiting sleeve can not only move synchronously with the sampling outer cylinder during its rise and fall, but also provides a certain degree of protection for the sampling sleeve. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention when it is not in operation.

[0022] Figure 2 This is a schematic diagram of the overall structure of the present invention during operation.

[0023] Figure 3 This is an enlarged structural diagram of point A in the present invention.

[0024] Figure 4 This is a schematic diagram of the sampling component structure of the present invention.

[0025] Figure 5 This is a schematic diagram of the cross-sectional structure of the local sampling component of the present invention.

[0026] Figure 6 This is a schematic diagram of the cross-sectional structure of the local sampling component of the present invention.

[0027] Figure 7 This is an enlarged structural diagram of point B in the present invention.

[0028] Figure 8 This is an enlarged structural diagram of point C in the present invention.

[0029] In the diagram: 1. Equipment rack; 2. Sampling assembly;

[0030] 101. Support frame; 102. Support top plate; 103. Pneumatic rod; 104. Connecting through slot; 105. Connecting rod; 106. Connecting plate; 107. Moving wheel; 108. Fixed plate; 109. Adjusting rod; 110. Moving frame; 111. Moving gear; 112. Moving rack;

[0031] 201. Connecting sleeve; 202. Protective sleeve; 203. Sampling outer cylinder; 204. First sampling left plate; 205. First sampling right plate; 206. Limiting sleeve; 207. Tunneling sleeve; 208. Third connecting spring; 209. First receiving cavity; 210. Second connecting spring; 211. Air pipe; 212. Torque spring; 213. Sampling inner cylinder; 214. Second sampling left plate; 215. Second sampling right plate; 216. First connecting spring; 217. Second connecting groove; 218. First connecting groove; 219. Second receiving cavity; 220. Moving slide; 221. Piston block; 222. Piston rod; 223. Third receiving cavity; 224. Third connecting groove; 225. Fourth connecting groove. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1

[0034] Please see Figure 1 , Figure 2 , Figure 4 , Figure 5 as well as Figure 6 A multifunctional civil engineering survey safety monitoring device includes an equipment frame 1 and a sampling component 2. The equipment frame 1 is composed of several support frames 101 and a support top plate 102. The several support frames 101 are respectively fixedly installed at the four corners of the support top plate 102, and a connecting groove 104 is opened on the top surface of the support top plate 102. The sampling component 2 is movably installed inside the connecting groove 104.

[0035] The sampling assembly 2 consists of a connecting sleeve 201, a protective sleeve 202, an outer sampling cylinder 203, and an inner sampling cylinder 213. The outer sampling cylinder 203 is movably disposed at the bottom of the protective sleeve 202, while the inner sampling cylinder 213 is movably disposed inside the first receiving cavity 209 opened inside the protective sleeve 202.

[0036] Both the outer sampling cylinder 203 and the inner sampling cylinder 213 are a combined structure. The outer sampling cylinder 203 is composed of a first sampling left plate 204 and a first sampling right plate 205, and the inner sampling cylinder 213 is composed of a second sampling left plate 214 and a second sampling right plate 215. At the same time, a limiting sleeve 206 is also movably provided at the connection between the outer sampling cylinder 203 and the protective sleeve 202.

[0037] The connecting sleeve 201 is disposed inside the connecting through groove 104. A pneumatic rod 103 is disposed on the top of the connecting sleeve 201 and passes through the connecting sleeve 201. The pneumatic rod 103 is fixedly connected to the top surface of the sampling inner cylinder 213 disposed inside the protective sleeve 202. The protective sleeve 202 is disposed below the connecting sleeve 201. In addition, a connecting plate 106 is disposed above the connecting through groove 104. The connecting plate 106 is fixedly disposed on the top surface of the supporting top plate 102 by two connecting rods 105.

[0038] The first sampling left plate 204 and the first sampling right plate 205, as well as the second sampling left plate 214 and the second sampling right plate 215, are symmetrically arranged. Torque springs 212 are provided at the connection between the first sampling left plate 204 and the first sampling right plate 205 and the protective sleeve 202. A tunneling sleeve 207 is fixedly provided on the lower surface of the first sampling left plate 204 and the first sampling right plate 205, and the bottom of the tunneling sleeve 207 is set as an inclined structure.

[0039] The inner surface of the first sampling left plate 204 and the outer surface of the second sampling left plate 214, as well as the inner surface of the first sampling right plate 205 and the outer surface of the second sampling right plate 215, are respectively provided with a first connecting groove 218 and a second connecting groove 217. A plurality of first connecting springs 216 are respectively provided between the first connecting groove 218 and the second connecting groove 217. One end of each first connecting spring 216 is fixedly connected to the first connecting groove 218, and the other end of the first connecting spring 216 is fixedly connected to the second connecting groove 217.

[0040] The outer surfaces of the second sampling left plate 214 and the second sampling right plate 215 are respectively provided with third connecting grooves 224, and the first receiving cavity 209 is provided with two fourth connecting grooves 225 respectively corresponding to the positions of the two third connecting grooves 224.

[0041] Several second connecting springs 210 are also respectively provided between the fourth connecting groove 225 and the third connecting groove 224. One end of each second connecting spring 210 is fixedly connected to the fourth connecting groove 225, while the other end of the second connecting spring 210 is fixedly connected to the third connecting groove 224.

[0042] In this embodiment: when the user needs to conduct a survey of some civil engineering projects, the external cylinder is first activated. Since the pneumatic rod 103, which is connected to the external cylinder, is fixedly connected to the sampling inner cylinder 213 and the protective sleeve 202 respectively, as the pneumatic rod 103 gradually descends, the sampling inner cylinder 213 will first come into contact with the ground. When the sampling inner cylinder 213 comes into contact with the ground, the protective sleeve 202 will also gradually descend. The sampling outer cylinder 203, which is movably set below the protective sleeve 202, will gradually begin to excavate the ground through the action of the tunneling sleeve 207. As the pneumatic rod 103 gradually rises, the sampling inner cylinder 213, the sampling outer cylinder 203, and the protective sleeve 202 will also gradually rise. After the sampling inner cylinder 213 and the sampling outer cylinder 203 return to their initial positions, the sampling outer cylinder 203 will gradually unfold to both sides due to the torque spring 212.

[0043] Furthermore, since a first connecting groove 218 and a second connecting groove 217 are respectively provided on the inner surface of the first sampling left plate 204 and the outer surface of the second sampling left plate 214, as well as on the inner surface of the first sampling right plate 205 and the outer surface of the second sampling right plate 215, and a plurality of first connecting springs 216 are respectively provided between the first connecting groove 218 and the second connecting groove 217, one end of each first connecting spring 216 is fixedly connected to the first connecting groove 218, and the other end of the first connecting spring 216 is fixedly connected to the second connecting groove 217. Furthermore, the outer surfaces of the second sampling left plate 214 and the second sampling right plate 215 are respectively provided with third connecting grooves 224. At the same time, the first receiving cavity 209 is provided with two fourth connecting grooves 225 corresponding to the positions of the two third connecting grooves 224. Several second connecting springs 210 are also respectively provided between the fourth connecting grooves 225 and the third connecting grooves 224. One end of each second connecting spring 210 is fixedly connected to the fourth connecting groove 225, and the other end of the second connecting spring 210 is fixedly connected to the third connecting groove 224.

[0044] This means that when the outer sampling cylinder 203 gradually expands to both sides due to the torque spring 212, the inner sampling cylinder 213 will expand to a certain extent along with the outer sampling cylinder 203 through the action of the first connecting spring 216 and the second connecting spring 210, and quickly complete the unloading effect. In this way, not only is the soil sampling effect of the specified area completed, but it is also faster and more convenient than the sampling equipment in the existing technology.

[0045] Example 2

[0046] This embodiment is an improvement based on Embodiment 1, according to... Figures 5-8As shown, a third connecting spring 208 is sleeved on the surface of the pneumatic rod 103 fixedly connected to the top of the sampling inner cylinder 213. The two ends of the third connecting spring 208 are fixedly connected to the sampling inner cylinder 213 and the first receiving cavity 209, respectively. At the same time, two air pipes 211 are respectively provided on the top surface of the first receiving cavity 209 above the sampling inner cylinder 213, and the two air pipes 211 are respectively connected to the second receiving cavities 219 opened on both sides of the protective sleeve 202.

[0047] Two second receiving cavities 219 are symmetrically arranged, and each second receiving cavity 219 has a movable slide groove 220 on both sides. A piston block 221 is slidably arranged inside the movable slide groove 220. The bottom surface of the piston block 221 is fixedly connected to the upper end of the piston rod 222, and the lower end of the piston rod 222 is fixedly connected to the top surface of the limiting sleeve 206. In addition, the limiting sleeve 206 is movably arranged inside the third receiving cavity 223, which is opened on the bottom surface of the protective sleeve 202.

[0048] In this embodiment: Since a cavity is provided between the top surface of the sampling inner cylinder 213 and the top surface of the first receiving cavity 209 through the third connecting spring 208, when the protective sleeve 202 descends along with the sampling inner cylinder 213, the gas inside the cavity will gradually enter the second receiving cavity 219 through the air pipe 211 as the protective sleeve 202 descends. At this time, the piston block 221 set inside the second receiving cavity 219 will gradually move downward in the moving groove 220 due to the entry of the gas. At the same time, since the bottom surface of the piston block 221 is fixedly connected to the upper end of the piston rod 222, and the lower end of the piston rod 222 is fixedly connected to the top surface of the limiting sleeve 206, the limiting sleeve 206 will also descend along with the piston block 221. In this way, the limiting sleeve 206 can limit the sampling outer cylinder 203.

[0049] As the sampling inner cylinder 213 and sampling outer cylinder 203 return to their initial positions, the third connecting spring 208 gradually resets. At this time, the gas input into the second receiving cavity 219 returns to the first receiving cavity 209 through the air pipe 211. As the gas gradually decreases, the air pressure inside the second receiving cavity 219 gradually decreases. At this time, the limiting sleeve 206, which is fixedly connected to the piston block 221 via the piston rod 222, gradually moves upward inside the third receiving cavity 223 as the air pressure decreases, and releases the limiting effect on the sampling outer cylinder 203. Through the above two methods, the sampling outer cylinder 203 can achieve the effect of opening upward and locking downward to a certain extent. Moreover, through these two effects, the limiting sleeve 206 can not only move synchronously with the sampling outer cylinder 203 during its rise and fall, but also protects the sampling outer cylinder 203 to a certain extent.

[0050] Example 3

[0051] This embodiment is an improvement based on Embodiment 1, according to... Figure 3 As shown, a number of support frames 101 are fixedly connected to a fixed plate 108 on their bottom surfaces, and a ring of movable racks 112 is provided on the outer surface of the fixed plate 108, and the bottom surface of the fixed plate 108 is fixedly connected to the top surface of the movable frame 110.

[0052] The top surface of the movable frame 110 is also provided with an adjusting rod 109, and the bottom of the adjusting rod 109 is provided with a moving gear 111. The moving gear 111 meshes with the moving rack 112. In addition, two moving wheels 107 are movably provided on the movable frame 110.

[0053] In this embodiment: Since each of the several support frames 101 is provided with a movable wheel 107, the user can move the several support frames 101 by means of the movable wheel 107 before conducting a survey of some civil engineering projects. At the same time, since the movable wheel 107 is movably mounted on the movable frame 110, and the top surface of the movable frame 110 is provided with an adjusting rod 109, the bottom of the adjusting rod 109 is provided with a movable gear 111, and a fixing plate 108 is fixedly connected to the bottom surface of each support frame 101, and a ring of movable rack 112 is provided on the outer surface of the fixing plate 108, the angle of the several movable wheels 107 can be adjusted by the meshing between the movable gear 111 and the movable rack 112. In this way, the flexibility of the invention is improved to a certain extent, and the flexibility is good.

[0054] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0055] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A multifunctional civil engineering survey safety monitoring device, comprising an equipment frame (1) and a sampling assembly (2), characterized in that: The equipment rack (1) is composed of several support frames (101) and a support top plate (102). Several support frames (101) are fixedly installed at the four corners of the support top plate (102). A connecting groove (104) is provided on the top surface of the support top plate (102). A sampling component (2) is movably installed inside the connecting groove (104). The sampling assembly (2) consists of a connecting sleeve (201), a protective sleeve (202), an outer sampling cylinder (203), and an inner sampling cylinder (213). The outer sampling cylinder (203) is movably disposed at the bottom of the protective sleeve (202), while the inner sampling cylinder (213) is movably disposed inside the first receiving cavity (209) opened inside the protective sleeve (202). The connecting sleeve (201) is disposed inside the connecting through groove (104), and a pneumatic rod (103) is provided at the top of the connecting sleeve (201). The pneumatic rod (103) passes through the connecting sleeve (201) and forms a fixed connection with the top surface of the inner sampling cylinder (213) disposed inside the protective sleeve (202). The protective sleeve (202) is disposed below the connecting sleeve (201). Both the outer sampling cylinder (203) and the inner sampling cylinder (213) are composite structures. The outer sampling cylinder (203) is composed of a first sampling left plate (204) and a first sampling right plate (205), and the inner sampling cylinder (213) is composed of a second sampling left plate (214) and a second sampling right plate (215). A limiting sleeve (206) is also movably provided at the connection between the outer sampling cylinder (203) and the protective sleeve (202). Torque springs (212) are provided at the connections between the first sampling left plate (204) and the first sampling right plate (205) and the protective sleeve (202). The inner surface of the first sampling left plate (204), the outer surface of the second sampling left plate (214), the inner surface of the first sampling right plate (205), and the outer surface of the second sampling right plate (215) are respectively provided with a first connecting groove (218) and a second connecting groove (217). A plurality of first connecting springs (216) are respectively provided between the first connecting groove (218) and the second connecting groove (217). One end of each first connecting spring (216) is fixedly connected to the first connecting groove (218), and the other end of the first connecting spring (216) is fixedly connected to the second connecting groove (217). A third connecting spring (208) is sleeved on the surface of the pneumatic rod (103) fixedly connected to the top of the sampling inner cylinder (213). The two ends of the third connecting spring (208) are fixedly connected to the sampling inner cylinder (213) and the first receiving cavity (209), respectively. At the same time, two air pipes (211) are respectively provided on the top surface of the first receiving cavity (209) above the sampling inner cylinder (213), and the two air pipes (211) are respectively connected to the second receiving cavities (219) opened on both sides of the protective sleeve (202). The two second receiving cavities (219) are symmetrical. The second receiving cavity (219) is provided with a movable slide groove (220) on both sides, and a piston block (221) is slidably arranged inside the movable slide groove (220). The bottom surface of the piston block (221) is fixedly connected to the upper end of the piston rod (222), and the lower end of the piston rod (222) is fixedly connected to the top surface of the limiting sleeve (206). In addition, the limiting sleeve (206) is movably arranged inside the third receiving cavity (223), which is opened on the bottom surface of the protective sleeve (202).

2. The multifunctional civil engineering survey safety monitoring device according to claim 1, characterized in that: In addition, a connecting plate (106) is provided above the connecting channel (104), and the connecting plate (106) is fixedly installed on the top surface of the supporting top plate (102) by two connecting rods (105).

3. A multifunctional civil engineering survey safety monitoring device according to claim 1, characterized in that: The first sampling left plate (204) and the first sampling right plate (205), as well as the second sampling left plate (214) and the second sampling right plate (215), are symmetrically arranged. The lower surfaces of the first sampling left plate (204) and the first sampling right plate (205) are fixedly provided with tunneling sleeves (207), and the bottom of the tunneling sleeves (207) is set as an inclined structure.

4. A multifunctional civil engineering survey safety monitoring device according to claim 3, characterized in that: The outer surfaces of the second sampling left plate (214) and the second sampling right plate (215) are respectively provided with third connecting grooves (224), and the first receiving cavity (209) is provided with two fourth connecting grooves (225) respectively corresponding to the positions of the two third connecting grooves (224).

5. A multifunctional civil engineering survey safety monitoring device according to claim 4, characterized in that: Several second connecting springs (210) are also provided between the fourth connecting groove (225) and the third connecting groove (224). One end of each second connecting spring (210) is fixedly connected to the fourth connecting groove (225), while the other end of the second connecting spring (210) is fixedly connected to the third connecting groove (224).

6. A multifunctional civil engineering survey safety monitoring device according to claim 1, characterized in that: A fixed plate (108) is fixedly connected to the bottom surface of several of the support frames (101), and a ring of movable racks (112) is provided on the outer surface of the fixed plate (108), and the bottom surface of the fixed plate (108) is fixedly connected to the top surface of the movable frame (110).

7. A multifunctional civil engineering survey safety monitoring device according to claim 6, characterized in that: The top surface of the movable frame (110) is also provided with an adjusting rod (109), and the bottom of the adjusting rod (109) is provided with a moving gear (111). The moving gear (111) meshes with the moving rack (112). In addition, two moving wheels (107) are movably provided on the movable frame (110).

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